JAPAN TAPPI JOURNALCONTENTS
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January 2016

Vol.７０, No.１

New Year’s Speech……Akihiro Aoki

The Special Issue of the５８th―２
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５JAPAN TAPPI
Annual Meeting in Niigata
４ General Review of the５
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５JAPAN TAPPI Annual Meetingin Niigata……Planning Subcommittee, JAPAN TAPPI
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４ Keynote Speech
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８th―２
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５JAPAN TAPPI Annual Meeting in Niigata
Evolution to create a winning strategy―Technological innovation is a key……Akihiro Aoki

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１ Lecture by Winner of２
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４JAPAN TAPPI Prize
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３ A Visit to Niigata Mill―Hokuetsu Kishu Paper Co., Ltd.―
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５ List of Exhibitors & Exhibits２０
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Technical Report２
８ Power Market Potential of the Paper Industry and Its Evaluation―The Business Opportunities in the Power System Reform―……Masayoshi Watanabe
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３ Innovation of Inspection Technology with the Color Camera……Masahiro Nakata
３
７ Development of SE Rotor Vane……Yujiro Deguchi
４０ Operating Experiences of SE Rotor……Yasuyuki Yamada

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６ Expansion of the Biomass Generation Business with the Paper Production
Decrease……Takashi Fukuzako
５
０ Operating Experience of Wash Press in D０―stage in the E―line Bleaching
Process……Ken Nozaki
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４ Iwaki／PM３Operating Experience of Product Change by Machine Relocation
and Remodeling……Yutaka Wada
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７ Operation Experience of New Liner Machine……Yoshikatu Monma
６
１ Analysis of the Bleedable Compounds at Pulp’s Top―Surface by ESCA and TOF―
SIMS……Hiroto Higashi, Tohko Nakamura and Keijiro Soma
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６ Functional Analysis of Japanese Green Tea Cultivar Sunrouge……Masafumi Wasai, Akiyoshi Kawaoka and Hirofumi Tachibana
Topics & Information

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１ Report on２
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５TAPPI International Conference on Nanotechnology for Renewable Materials……Takeshi Nakatani
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３ Committee report
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４ Papyrus
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３
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５
９
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Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 January JAPAN TAPPI JOURNAL
Vol.70, No.1 Abstracts

Power Market Potential of the Paper Industry and Its Evaluation―The Business Opportunities in the Power System Reform―
Masayoshi Watanabe
Ministry of Economy, Trade and Industry
Electric power system reform is pushed forward in the government. The perspective of thereform is comprised of three phases of the next. It is full-scale liberalization of expansion, retailof the wide area system use and the generation, securing of neutrality by the legal separation of
the power transmission and distribution section. Revised work of Electricity Enterprises Law ispushed forward along this policy in the Diet. I organized an investigation committee composedof main papermaker and Japan Paper Association in Ministry of Economy, Trade and Industry. I
arranged contents and positioning of the energy business to advance in paper manufactureindustry in the investigation committee and examined a paper manufacture industry common
problem and measures policy. In addition, I performed an investigation, analysis and, parallel totrend analysis in the paper manufacture industry, gathered an example as a report about
compound energy business in other industry. This report summarized a part of the examination
result of the report concerned.

Innovation of Inspection Technology with the Color Camera
Masahiro Nakata
Inspection Systems Business Div., Omron Corporation
In 1992, OMRON put color printed web inspection system on the market. After that in 2000,"Color Age" was developed for plain web inspection. since those inspection systems had
different architecture construction, it was difficult to become widely used in those days.
However, in 2009, we finally developed "Super NASP Color" in order to meet inspection needs
as follows.
- The integration of architecture construction of inspection system- Reasonable price to introduce for paper production

- Improvement of the usability and the processing capacity for quantity of color data
- Function to distinguish a harmful red-colored defect that reminds consumers of humanblood
Our color inspection technology has led to an innovative inspection method to make practicaluse of the difference in wavelength of Red, Green, Blue and Infra-Red. Today, we would like toshow you the basic technology of color inspection, and also indicate an application possibility to
the inspection system based on the difference in wavelength.

Development of SE Rotor Vane
Yujiro Deguchi
Rotor Industry Co., Ltd.
Due to the steep rise in the cost of generator fuel and the need for measures against
greenhouse gas emissions, pulpers, which have traditionally used more electricity than otherdevices, are also required as a part of energy conservation measures. In addition, it is known
that more efficient defibration by pulpers can decrease the amount of electricity required byscreen devices used after the material-creating process. The need for a rotor vane capable ofstronger defibration than existing devices has become evident. While the potential for energy
saving has existed in currently available rotor vanes, such energy savings come at the sacrificeof processing quantity. We developed the SE Rotor Vane to address this issue.

Operating Experiences of SE Rotor
Yasuyuki Yamada
Gifu Mill, Oji Materia Co., Ltd.
We have pulper, screen, a process of manufacture, it is the facilities that pulper, screen andrefainer use a lot of energy.
We simplified pulp process equipment , and have implemented various energy-saving
measures, such as concentration of equipment.
This time we focused on the rotor in the pulp process that consume the most power at
Nakatsugawa mill and Ena mill, introduced 90 Type SE rotor is made of six blades byRotor-Kogyo Co., Ltd..
I will introduce the operating experience and energy saving about the Rotor in the case of

Nakatsugawa mill, that was introduced in June 2011.
Expansion of the Biomass Generation Business with the Paper Production Decrease
Takashi Fukuzako
Fuji Mill, Nippon Paper Industries Co., Ltd.
Due to a reduction in paper production, we have launched initiatives for utilizing surplus
electricity, by realizing stable electricity generation and by further increasing the amount ofelectricity. As a result, Nippon Paper Fuji Mill has been able to achieve significant outcomes for
its electricity business.
In this paper, we report introduce the action that was able to utilize the biomass electricity
that became the surplus energy effectively.

Operating Experience of Wash Press in D0-stage in the E-line Bleaching Process
Ken Nozaki
Niigata Mill, Hokuetsu Kishu Paper Co., Ltd.
There are three bleaching lines (D, E and F-lines) in Niigata mill, Hokuetsu Kishu Paper Co.,
Ltd. The E-line started to be operated in 1998 at 1200 T/D production capacity with a
D0-Eop-DnD bleaching sequence, which was the first operational ECF bleaching large-scale
plant in Japan. In 2001, the productivity increased to 1300 T/D by remodeling E-line, ableaching sequence was changed to D0-Ep-D1. E-line has still been operated at 1300 T/D
productivity, which is about a half of a total production of three lines, because of remodelingdigester, new construction of the F-line and others.
The bleaching agents consumption rate of E-line is the worth of the three. The D0-stage
washer has recently been changed an atmospheric diffusers with a wash press to improve
bleaching agents consumption rate. In this paper, changes of operating conditions by changing
D0-stage washer were reported.

Iwaki/PM3 Operating Experience of Product Change by Machine Relocation andRemodeling
Yutaka Wada

Linerboard Dept., Iwaki Daio Paper Corporation
A machine stopped N3 machine for Daio Paper Kani Mill (the product kind: Paper) in
February, 2014 number 3, and Iwaki Daio Paper completed remodeling and relocation by 6months and did an equipment test run in August, 2014.
2 months are to manufacture a sampler by 6 factories of related corrugated cardboard
company, establish the quality and begin commercial operation as planned in October fromequipment operation, and I'm producing 12,000 tons of monthly production at present, existing,
I'm producing 40,000 tons of machine and ply metal paper main stencil monthly production by
Iwaki Daio PM 1.

Operation Experience of New Liner Machine
Yoshikatu Monma
Marusan Paper Mfg．Co., Ltd．
Marusan Paper PM8 started the trial operation from December 26, 2014, and has produced
commercial paper since January 26, 2015. In February of the year, we achieve 500 t/day.
Currently extracts various problem towards the stable operation, it is the stage which is carriedout operation while solved．
PM8, corresponding to the thin of containerboard growing from the environmental aspects of
the needs was built the quality, productivity and cost competitiveness in the concept, was built
as a round paper machine PM6 of S&B.
In this paper, we describe operating experience of the up to the present from the start of paper
machineequipment overview of the PM8, and commercial operations.

Analysis of the Bleedable Compounds at Pulp's Top-Surface by ESCA and TOF-SIMS
Hiroto Higashi, Tohko Nakamura and Keijiro Soma
Material Analysis Center, Oji Holdings Corporation
It was commonly found that the aging and the manufacturing conditions were influenced on
the surface properties of the paper. We assumed that the change of the surface properties wascaused by the bleeding of the low-molecular-mass compounds to pulp fiber surface. In order toconfirm this assumption we carried out the surface analysis of hand sheets using ESCA andTOF-SIMS.
A handsheet was prepared from a hardwood pulp. ESCA and TOF-SIMS analysis showed thatthe bleedable compounds, such as C-C chemical bonds increase on the surface of the sheet athigh temprature.

Functional Analysis of Japanese Green Tea Cultivar “Sunrouge”
Masafumi Wasai and Akiyoshi Kawaoka
Agri-Biotechnology Research Laboratory, Nippon Paper Industries Co., Ltd.
Hirofumi Tachibana
Department of Bioscience and Biotechnology, Kyushu University
Sunrouge is a Japanese green tea cultivar containing anthocyanin, developed by Nippon
Paper Industrie's original “In-container rooting technology” based on a photo-autotrophic
culture system, jointly with the National Agriculture and Food Research Organization and the
National Institute of Vegetable and Tea Science. In this study, we evaluated suppressive effect ofSunrouge on metabolic syndrome and found that Sunrouge has the highest inhibitory effect ofamylase and α-glucosidase activity, a digestive enzyme that hydrolyses polysaccharides into
glucose, among the 51 major Japanese green tea cultivars. In addition, we verified that
Sunrouge has a suppressive effect on the elevation of the postprandial blood glucose level byoral starch tolerance test in mice and humans, and on the elevation of HOMA-IR bydiet-induced obese model test in mice.

Report on 2015 TAPPI International Conference on Nanotechnology for Renewable
Materials
Takeshi Nakatani
Nippon Paper Industries Co., Ltd.
The 2015 TAPPI International Conference on Nanotechnology for Renewable Materials washeld at Hyatt Regency in Atlanta, Georgia、the U.S.A. from June 22nd to 25th. Approximately
250 delegates attended the conference and most of them were from the US and Canada.
Reported at the conference were 110 oral presentations and 45 poster presentations. Summariesof the conference are reported.

JAPAN TAPPI JOURNAL

２

February 2016

CONTENTS

Vol.７０, No.２

Topics & Information

１ Cutting―Edge Technologies for Recent High Demands on Energy
Consumption and Limited Grade Stock……Keiji Yasuda and Kazumi Fujita
１
１ Felt Cleaning System SHOWER ROLL ……Narihiro Ohtaka
１
６ Resolving Web Breaks and Defects Fundamentally ! Drastic Chemical Solutionof Deposit Problem by Process Cleaning……Eiji Koga
２２ Introduction of Liquid AKD for Alkaline Board Making System……Mark Kao, Stephane Menard and Masanobu Hatano２
８ Recent Technical Trends and Application for Rosin Sizes（Ⅱ）……Takuya Kawamura, Ryuji Itose, Wakako Masuda and Kenichiro Yokota
３
４ Automatic Core Cutter with Metal Cap Inserter ……Naoaki Uesugi

４
１ Existing Folio Sheeter High Efficiency Improvement Program……Tayfun Ozbaki and Akihiko Koya

４
７ Optimizing Steam Systems for the Paper Industry……Toshiki Takenaka and Katsuhiko Machino５
２ Ideal Closed Condensate Recovery System for the Paper, Pulp, and CorrugatedCardboard Industries―Heat Recovery System Utilizing Flash Steam under Both Pressurized and Vented―to―Atmosphere Conditions, and High―Efficiency Gas―Fired High―Pressure Once―ThroughBoiler with Air heater―……Takehiro Uwafuji and Hiroyuki Hatanaka

５
７ Standardized and Automated Paper Quality Testing for Process Optimization
and Control―L&W Autoline―Case Studies―……Mitsuhiro Yamazaki

６
２ The History of Technological Developments of the Paper Industry in Japan
Part４：The Start of Pulp Production……Kiyoaki Iida
７
２ Corporate Profile & Product Information Ô

Maruishi Co., Ltd.
Introduction of Research Laboratories
（１
０
９）

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８ Laboratory of Biomass Chemistry, Department of Applied Biological Science,
Faculty of Agriculture, Kagawa University
Technical Report（Original Paper）

８
３ Thermomechanical Pulp Innovation for Energy Saving and High Brightness
Paper Development……Takanori Miyanishi
０
３ Committee report
８
０ Essay on Intellectual Property
８
２ Coffee break
９
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Industry News（Domestic and International）
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 February JAPAN TAPPI JOURNAL
Vol.70, No.2 Abstracts

Cutting-Edge Technologies for Recent High Demands on Energy Consumption and
Limited Grade Stock
Keiji Yasuda
Overseas Sales Dept., AIKAWA IRON WORKS CO., LTD.
Kazumi Fujita
Technical & Engineering Dept., AIKAWA IRON WORKS CO., LTD.
A higher price and a lower quality of the waste paper due to a recently increased export of thegood quality Japanese waste paper have been causing the problems of a poor product quality
and a lower yield in the Japanese paper industry. It is said by one of the media that thecontinuous increase of the waste paper import to China has ceased since the beginning of thisyear, but the decline of the waste paper volume in Japan will continue due to the decreasing
number of the paper consumption.
The major problems that Japanese paper mills are facing now are “Lowering productquality” due to introducing the prohibited materials, “Increasing power consumption” due tothe higher ratio of the wet-strength, and “Lowering yield” due to decreasing waste paper
grade.
In this article we would like to introduce the concept, structural principle and case studies ofthe latest products developed with the cutting-edge technologies in design and manufacturing
processes that contribute to solving the problems that the paper mills are facing.

Felt Cleaning System “SHOWER ROLL”
Narihiro Ohtaka
Aoki Machinery Co., Ltd.
Due to recent poor quality of furnish caused by increased use of recycled paper, increased
dosage of chemicals, increased rate of using collected water, higher machine speed and etc., thelevel of contamination of felt and canvas is getting higher and higher these days. To eliminate
this contamination well enough gives much impact on how efficiently we produce paper andboard.
Concerning felt cleaning, cleaning agents and detergents used for felt cleaning cause foamingin the process, poor sizing level and increased amount of water treatment cost. Because kinds ofcontamination are different depending on the machine type, the machine speed and the paper
grade, the cleaning method must be changed accordingly.
The conventional ideal cleaning method consists of a cleaning shower, a high or a medium
pressure shower, a wetting shower and a suction box or a squeeze roll. However, a high or a
medium pressure shower causes fluffing and then abrasion on the felt surface leading to poorcleaning effect.
On the other hand, when dewatering with a squeeze roll, it can decrease air permeability of
the felt due to the caliper reduction and clogging. It is extremely difficult to maintain the felt
condition and to extend the felt life time with using these conventional cleaning methods.
Furthermore, much showered water splashed around the shower equipment causes poor working
environment. It can also generate rust on mechanical parts and can damage roll bearings.
In this situation, we have developed a cleaning system, “SHOWER ROLL” which has acleaning method different from those of conventional ones to cope with the above mentioned
issues and is environmentally friendly, too.
We hereby introduce mechanical characteristics of SHWER ROLL and our experiences ofoperations.

Resolving Web Breaks and Defects Fundamentally !
Drastic Chemical Solution of Deposit Problem by Process Cleaning
Eiji Koga
Sales and Marketing Dept., Nissin Kagaku Kenkyusho Co., Ltd.
The deposit in the papermaking process often has bad influence to machine operation, thepulp and paper productivity and the quality of the product. Therefore successive various
measures are performed to restrain a deposit. In the papermaking process especially using thewaste paper, it's difficult to restrain a deposit perfectly by a fluctuation of the wastepaper quality.
There is a way to plan for a solution by strengthening the deposit control to such problem, but
the problem as cost increase occurs newly. For the appropriate solution of deposit problem, it's
important to clean periodically the papermaking process on the shutdown, and control deposit ofa constant level as well. In the recent years' paper making process, the contents of the deposit in
the process are changing by various technological introductions. So it's necessary to optimize
process cleaning agent and the use method according to the change. Introduction of the mostappropriate process cleaning method makes operation become stable, and improve theproductivity, and stabilize the quality, and you can reduce the cost.

Introduction of Liquid AKD for Alkaline Board Making System
Mark Kao and Stephane Menard
Solenis Water Technology
Masanobu Hatano
RIKENGREEN CO., LTD.
Alkaline sizing in paper board making system became the global trend and move into Asia
Pacific recently, mainly due to more Calcium Carbonate in recycle waste paper which is noteasy to control the system pH and higher cost from rosin size due to the labors cost increase.
The other reasons were unexpected raw material supply and getting worse on fiber strength
quality due to more recycle times and higher quality demand at paper end used or even lower
basis weight required for cost saving.
In order to get good paper machines runnability and paper properties that several topics are
discussed (ⅰ) alkaline sizing market trend in recycle board paper making (ⅱ) reasons foralkaline board paper making (ⅲ) solutions that can be implemented to alkaline board paper
making system on sizing or (ⅳ) balance of retention and drainage to keep paper machine
runnability.
A good alkaline board making system are not only using alkaline fine paper making system as
references but also need to consider the balance of retention & drainage on minimize the impact
of strength properties due to formation changed.
Recent Technical Trends and Application for Rosin Sizes（Ⅱ）
Takuya Kawamura, Ryuji Itose, Wakako Masuda, and Kenichiro Yokota
Paper Chemicals Development, R&D Center, R&D Company, Harima Chemicals, Inc.
Harima Chemicals Group is the only one manufacturer of tall oil rosin in Japan, and we have
our oversea manufacturing bases in 11 countries. By utilizing these advantages, we have been
globally developing pine chemical business in various fields such as paper chemicals andprinting ink resins.
With respect to the paper chemicals, a rosin size is one of the major paper chemicals in theworld, and the rosin size has been applied with aluminum sulfate for wide ranges ofpapermaking pH conditions to give desirable sizing property for paper and paperboard.
Recently, it is getting much interest and concern about food contact substances. In the UnitedStates, it is general for the paper chemicals including rosin size to comply with FDA (Food &Drug Administration) regulation, and rosin which is a major component of rosin size has been
approved as one of the substances to safely use in paper and paperboard which contact withfood. Considering FDA compliance for rosin dispersions, we needed to develop anionicpolymer type emulsifier with FDA compliance since there was no anionic polymer approved by
FDA as the emulsifier even though its quality was basically advanced.
In this report, the newly developed rosin dispersed sizes, an effective application method of
this rosin dispersion based on the mechanism study for sizing performance and trial result at
paper mill are introduced.

Automatic Core Cutter “with Metal Cap Inserter”
Naoaki Uesugi
Maruishi Co., Ltd.
Papermakers and converters strive to improve the quality, reliability, logistic, ergonomics,
environmental sustainability and cost effectiveness. The new paper machines and convertinglines get winder and faster for each new installation with maximum automation level. To stay on
a global market is constant improvements and investment in new technology.
Maruishi has made a technical alliance with Sweden Core Link as to the core equipment since1991 and manufactured in Japan. Core Link has technological innovations for the coreequipment for dozens of years and tried to increase productivity and customized for alabor-saving machine and reduction of expenses to fit the customer’s needs from theirexperience and delivered to several hundred companies in more than 50 countries.
I would like to explain about Automatic Core Cutter “with Metal Cap Inserter” which wasdelivered as the first machine manufactured in Japan.

Existing Folio Sheeter High Efficiency Improvement Program
Tayfun Ozbaki and Akihiko Koya
K.K.IRISU （C.ILLIES & CO., LTD.）BW Papersystems, which includes: MarquipWardUnited, Will-Pemco, Kugler-Womako, andCurioni, offers market-leading technology for folio, cut-size and digital sheeting and packaging
machines, plus stationery, passport production and specialized paper converting applications.
Part of the BW Papersystems history is the Marquip Knife. Its history starts on the corrugator,
and then was developed for use in the sheeter industry. Evolving through the years, acrossmultiple industries has made the Marquip Knife the most advanced knife in the world. It
provides clean, accurate cuts, with a speed curve that is unmatched; while creating sheets thatare press ready. There are over 1,800 knives installed across the globe, of which 350 are on
Sheeters. The knife has been installed at paper mills, paper convertors, commercial printers,
folding carton plants and on corrugators.

Optimizing Steam Systems for the Paper Industry
Toshiki Takenaka and Katsuhiko Machino
Consulting Engineer
CES Center, TLV CO., LTD.
In recent years at paper mills, due to countermeasures against global warming and steep
increases in the price of raw materials, efforts to conserve energy and reduce costs are becoming
ever more imperative. Also, mills that been in operation for several dozen years are not rare, andincreases in maintenance costs as well as production opportunity losses due to trouble are
becoming issues.
Here we will introduce our “Steam System Optimization Program (SSOP)” which realizes
improvements in steam conservation and stable operation of steam systems, typified by boilers
and paper machines. SSOP is divided into 3 phases dealing with optimization of “Condensate
Discharge Locations”, “Steam-using Applications”, and the “Entire Steam System (Energy
Balance)”. In order to carry out these phases, there are two programs: a “condensate discharge
location management program (BPSTM)” which is a system for maintaining optimum
conditions by making visible and solving issues such as steam loss and problems caused bycondensate from condensate discharge locations (steam traps and peripheral equipment); and a“comprehensive steam system analysis (CES Survey)”, in which a specialist diagnoses the
site.
SSOP has been adopted by many plants in the petrochemical industry. BPSTM and individual
application surveys have already been implemented in a number of paper mills and havereceived positive reviews. BPSTM has been adopted primarily by the utility department at thesemills, and 3 years after introduction in some mills the steam trap failure rate has been reduced
from 20% to about 9%, steam loss cut by 4,700 tons/year, and the problem of blocked steam

traps resolved. Also in a mill where the survey has been adopted, by reconsidering the recovery
of steam discharged from coating machines, over 1.5 times more steam was recovered, resulting
in an approximately 4% reduction in the steam consumption rate. Furthermore, the problems ofwater hammer and air temperature fluctuations in the paper machine air system were resolved
by identifying their causes and drafting countermeasures.
Ideal Closed Condensate Recovery System for the Paper, Pulp,
and Corrugated Cardboard Industries― Heat Recovery System Utilizing Flash Steam under Both Pressurized andVented-to-Atmosphere

Conditions,andHigh-Efficiency

Gas-Fired

High-Pressure

Once-Through Boiler with Air heater―
Takehiro Uwafuji, and Hiroyuki Hatanaka
Miura Co., Ltd.
MIURA as a leading manufacturer of once-through boilers has adopted “Total solution” as aslogan, promoting various eco-friendly proposals through industrial-water treatment devices andcompressors using in-plant steam, and so on. This paper explains following technologies;
・Closed condensate recovery system which recover heat from flash steam under bothpressurized and vented-to-atmosphere conditions
・Industry's highest gas-fired high-pressure once-through boiler with air heater, under theclosed condensate recovery condition

Standardized and Automated Paper Quality Testing for Process Optimization and Control―L&W Autoline - Case Studies―
Mitsuhiro Yamazaki
Pulp & Paper Group, Process Automation Division, ABB K.K.
In all types of mature production, constant improvements are required for a company to staycompetitive. Today it is more important than ever. Search for cost reductions and improved
efficiency is always on the agenda. In the pulp and paper industry the goal is to produce a
product within given specification at the lowest possible cost - quality testing and monitoring of
the process is one way getting there.
In this speech, I would like to share some case studies, introducing design concept andcapability of L&W Autoline as well as knowledge which has been obtained from installation

base of more than 400 systems all over the world.

The History of Technological Developments of the Paper Industry in Japan
Part 4: The Start of Pulp Production
Kiyoaki Iida
Following progress of paper machine, pulp making was also revolutionized in the 19th century.
Alkaline cooking of rags and straw in a globe digester was perfected by the middle of the
century. Then, wood was pulped with alkali in a stationary digester in America and groundwood pulp was produced in Germany in the 1860s. Sulfite process for wood pulping was also
investigated at the each side of the Atlantic, and the basic design was completed by the end of
the century. At the beginning of the 20th century, newsprint was manufactured with GP and SP ina large scale and KP, a little later, accomplished its system including the recovery plant.
The Meiji era was exactly the time pulping processes were evolving, and pioneers in Japansensitively understood and followed the progresses.
First, rags were cooked with alkali. Paper manufactured by an imported machine with rag
pulp could not compete to imported paper that was efficiently produced. The cost down was
done by Heizaburo Ohokawa, who cooked rice straw with alkali, copying straw pulping in the
U.S. He made newsprint in which straw pulp was 60% and the rest was rag pulp.
Having a news saying that SP was commercially produced in Europe, Ohokawa visited themills and decided to produce SP by himself. After efforts for 5 years, he built a mill (Keta mill)in Kiso area. Though the mill was miserable at the start, he accumulated know-how, installed a
GP plant and a paper machine, and finished an integrated mill based on wood. In ten years later,
this model was repeated as Nakabe mill. The model was very significant in the history and wasa base for further expansion to Hokkaido and then to Sakhalin .

Corporate Profile & Products Information (29)
Maruishi Co., Ltd.
In 1943, Mr. Taichi Ishikawa founded Maruishi from scratch to manufacture repair parts forthe pulp and paper mills on the foot of Mt.Fuji, Japan. As a man of entrepreneurship, he didn’t
set limits for himself. He had a big dream – to start design and engineering work for his own
products and serve clients’ needs with the best knowledge. An excellent opportunity presented

itself in 1970 when Maruishi signed its first license agreement with Machinenfabrik ANDRITZ,
of Austria, to manufacture its patented Twin Wire Wet Wrap Machine. That was the beginningof Maruishi’s global expansion, followed by more than a dozen of international technicalalliances later on. Today Maruishi’s machine technology covers nearly all paper machinery
requirements, from wood handling, stock preparation, paper machine, coater, to modern
finishing machines. Maruishi is committed to global technical exchanges and unlimited
technological development for high-tech modern paper machinery. We grow together with ourworldwide clients and technical partners. And like our founding father, Maruishi’s global
aspirations for technical challenges, are limitless.

－Peer Reviewed－
Thermomechanical Pulp Innovation for Energy Saving and High Brightness Paper
Development
Takanori MiyanishiJAPAN TAPPIIt is reported that Douglas-fir is not suitable for mechanical pulping. Extractives such as
dehydroquercetin and quercetin contained in the heartwood of Douglas-fir are known to bedeleterious by consuming costly bleaching chemicals with the result that the end product may
be a pulp with lower brightness. The objective of this study was to improve bleachability ofthermo-mechanical pulp (TMP) of Douglas-fir. The TMP interstage bleaching was selected as amodel process, where hydrogen peroxide bleaching took place between the primary and thesecondary refining. Two sets of experiments were carried out to evaluate pulp washing and chip
pretreatment in various conditions. The first experiments showed that pulp washing with water
after the primary refining prior to the interstage bleaching was effective in improving
bleachability. The second experiments found that chip pretreatment with diethylenetriaminepentaacetic acid (DTPA) or sodium hydroxide (NaOH) prior to the primary refining improved
bleachability and saved 35-40% hydrogen peroxide in the interstage bleaching to achieve 55%
ISO brightness. Precautions were taken to optimize the chip pretreatment conditions. The
pretreatment efficiency depended on the initial pH of the chemical liquor and the optimal pH
range was found to be around 11.5. DTPA or NaOH, which were added for the chip
pretreatment, showed the same effect. The experimental results were successfully applied to theenergy efficiency project in one of the largest TMP plants in North America.

JAPAN TAPPI JOURNAL

３

March 2016

Vol.７０, No.３

CONTENTS
Process Control and Automation

２ General Review of３９th Pulp and Paper Process Control Symposium……Process Control and Automation Committee, JAPAN TAPPI

１
７ Wearable Device and IoT in the Workplace……Yoshihiro Hosokawa
２
３ Novel Kappa Measurement Technologies―A Breath of Fresh Air for Pulp Makers―……Akhlesh Mathur and Masashi Hasegawa

２
９ Introduction of Dirt Observation Device

Open―K―DO at Fuji Mill……Shingo Totsuka

３
６ Proposal for Reducing Usage of Freon Gas and Device Maintenance Man―hour……Shuichi Yuki

３
９ Papermaking４．
０Concept of VOITH Paper……Ryozo Shimizu
４４ Optimization of Pulp Production by Sustainable Optimization Modeling……Ken′ichi Kamada

４
８ Case Study by Replacing QCS of a Paper Machine……Masahiro Takashimizu
５
３ Replacement Project of PM５Rewinding Control System……Hiroyuki Sato
Topics & Information

５
９ Scanning Measurement Reboot―ZipLine―……Mikio Kojima

６
３ The Strength and Technology of State―of―the―Art LED Color Sensor……Takato Kishi

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８ The History of Technological Developments of the Paper Industry in Japan
Part５：Integrated Mills and New Wood Resource Sites……Kiyoaki Iida
７
９ Corporate Profile & Product Information Õ

Honeywell Japan Inc.
Review Article（Original Paper）

８
４ Chemical Mapping of Cell Wall Components……Dan Aoki, Yasuyuki Matsushita and Kazuhiko Fukushima

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３ Committee report
９２ Papyrus
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Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 March JAPAN TAPPI JOURNAL
Vol.70, No.3 Abstracts

Wearable Device and IoT in the Workplace
Yoshihiro Hosokawa
Personal Product Planning Division, Ubiquitous Business Strategy Unit, FUJITSU LIMITEDThe use of wearable and IoT device at site is expanding.
Nowadays, those devices are highly expected to be as work-style innovation at site even for
those fields where ICT (Internet Communication Technology) has not been really introduced.
There is a trial calculation that 50 billion of IoT devices will exist on the earth by 2020 and it
is expected that the market size will reach 200 trillion yen in 2020, used by various types ofindustries such as manufacturing, medical, finance and so on.
On the other hand, it is very hard to predict benefits to be taken by implementing wearable or
IoT devices precisely.
Besides it is hard to judge what kind of device should be chosen for each site as there havebeen already various types of devices.
Current situation is that there are only few devices which fully satisfy needs of field site who
would like to implement readily to have an effect.
For this talk, I’d like to explain the usability of wearable and IoT device by showing actual
usage at customer’s site as well as a verification of benefits and introduction of Fujitsu’s
wearable and IoT devices that are released in May 2015.

Novel Kappa Measurement Technologies― A Breath of Fresh Air for Pulp Makers ―Akhlesh Mathur
BTG Instruments, Singapore
Masashi Hasegawa
BTG Division Spectris Co., Ltd.
Pulp being an intermediate and commodity is always under pressure to contain costs, meet
quality specifications and has the right environmental profile, irrespective of where a mill is onthe cyclic profitability curve. Having sharper and smart eyes to the process not only allows pulp
makers to optimize the unit operations but these sensors are providing continuous visibility tomill management and proven tools to tighten controls and take quick preventive actions before
it is too late.
The whole Kraft fiberline process from cooking through to bleaching is designed to
selectively remove lignin from wood chips to produce pulp that meets brightness and strength
requirements and is produced in most cost efficient way. Traditionally, fiberline has beenmonitored & controlled using fiber kappa alone. Missing information on dissolved lignin has
been one of the root causes of lack of implementation of fully automated process controls.
This paper focuses on new sensor technologies available today that measure lignin in various
forms including dissolved lignin. Deployment of these sensors at key locations in fiberlines
have demonstrated huge savings to mills in yield and chemical consumptions. These innovative
measurement technologies have enabled optimum process control strategies for mills to operateand change gears quickly to remain on the sweet spot of optimum cost and productivity curves
and that too with attractive payback. These smarter novel sensors are quickly gaining popularity
among pulp makers as breath of fresh air and a differentiated approach to operate pulp mills
today.

Introduction of Dirt Observation Device「Open-K-DO」at Fuji Mill
Singo Totsuka
Fuji Maintenance Control Department, Fuji Mill, Nippon Paper Unitec Industries Co., Ltd.
At NPI Fuji mill, DIP plant which has two series 210 T/d has been operating and they use
Omron online dirt counter (ASP-D400P) for quality management. Now we see things fromevery angle and make a plan for achieving higher efficiency. One of our plans was online dirt
counter additional installation. However, Omron announced the product will be end of sales on
May 2015. Hence, we made up our mind to focus on other maker not Omron due to end of sales,
but we couldn't find adequate product in terms of pricewise and maintenance. So we asked our
NPI engineering division Nippon paper Unitec (NUT) to develop dirt counter for raw materials
process.
NUT had been discussed with Omron and ready for develop successor model by NUT itself.
Developing has been started at DIP plant NPI Fuji mill since August 2014. After field test
finished roughly 1 year, it's been operated online dirt observation device (Open-K-DO) in
August 2015.
This report presents the outline of developing process which we introduced into Fuji mill DIP

plant.

Proposal for Reducing Usage of Freon Gas and Device Maintenance Man-hour
Shuichi Yuki
FA east section Tokyo Office, Apiste Co., Ltd.
Paper manufacturing process has distribution panel in order to control device and production
line. Current advanced automatic production system needs to prevent electronic equipment frommachine trouble and keep reliability of rejecting sudden stop and extending equipment life. In
the case of considering causes in heat, it is widely known in paper manufacturing companies
that FA cooler is effective to avoid troubles. As results, FA cooler is highly adopted in SD/ BM/process device.
Electronic device trouble causes can be specified in “alteration and deformation” or “adhering
contaminants”. “alteration and deformation” mostly occurs in result of chemical reaction.
Electronic devices are delicate and easy to have troubles in temperature rise because chemical
reaction speed is more quickly proceeding in high temperature. In relation between temperatureand failure rate in control device, Arrhenius equation is well-known. When calculating relation
based on Arrhenius equation between semiconductor temperature and failure acceleration,
appendix1 shows failure rate 1 in 40. when Semiconductor is 60℃, its failure rate will be 10～
30. also, when Semiconductor is 80℃, its failure rate will be 100～300.
Distribution panel countermeasure against heat is still a key technology for distribution panel
design because fan, heat-exchanger, and air-conditioning duct are tried in various situation ever;
however troubles still occurred by deficiency in cooling performance, cooling irregularity anddew condensation. FA cooler is now well-known to propose and give better solution for all
above problems.
Existing FA cooler mostly use alternative Freon gas(ex. HFC134a) for cooling. Usage ofalternative Freon gas FA cooler is being anxious to introduce in production line because
rising man-hour by Freon gas emission and reducing law instead of excellentofeffectiveness.

At this time, Apiste proposes new FA cooler to keep good condition in production device andavoid using alternative Freon gas.
Papermaking 4.0 Concept of VOITH Paper
Ryozo Shimizu
Control System Engineering Department, Voith IHI Paper Technology Co., Ltd.

Industrie 4.0 is a project in the high-tech strategy of the German government and is the title
given to the next fourth Industrial Revolution. As part of Industrie 4.0 Voith Paper has alreadystarted to introduce and promote the Papermaking 4.0 concept globally. It based on the next
generation of cyber-physical systems, encompassing the full life-cycle knowledge andintelligence necessary for the autonomous decentralized control of manufacturing plants. This
coupled with big data analytics providing better insight and predictive capabilities allows for the
next leap in productivity and cost reduction. Papermaking 4.0 is the sum of three main talents ina system of systems:
OnEfficiency SmartControls delivers sustainable performance. Papermaking 4.0 encompasses
decentralized self-autonomous yet modular and integrated control solutions, distributed along
the entire paper & board production process, enabling producers to easily drive their plant on
THE key parameters to continuously achieve business objectives.
OnCare SmartMaintenance delivers intelligent reliability. The smart self-diagnostic
capabilities and seamless connectivity of Papermaking 4.0 ready products facilitate the highest
attainable plant availability at the lowest overall cost of maintenance through a high degree ofpredictive foresight, automated service and material management.
OnServ SmartService delivers immediate assistance. Around the clock capabilities andassistance deployed through remote, on-site and on-call arrangements, supporting our customers
with data analytics, diagnostics and real-time process optimization, ensuring highest plant
performance and availability.
The most important differentiating factors from tradition automation solutions are in the highdegree of modularity, step by step approach and unison between both production & maintenancefaculties. The value delivered by our solutions substantially exceeds the sum of value from theindividual components, generated through our USP, our know-how embedded into thesesolutions.

Optimization of Pulp Production by Sustainable Optimization Modeling
Ken'ichi Kamada
Innovation Center, Marketing Headquarters, Yokogawa Electric Corporation
Total optimization becomes increasingly important with the growth of distributed energy
supply that combines diverse energy sources such as renewable energy, cogeneration, andbattery. In plants, optimizing the whole process/plant attracts attention rather thanper-equipment optimization.

However, optimization requires mathematical models of every piece of equipment in the plant.
Building models needs broad knowledge such as thermodynamics and chemical engineering on
the process and equipment, statistical analysis, and mathematical programming. It is too costly
to build all models by human engineers. Furthermore, both the number and the kinds of models
increase when the coverage of optimization expands.
YOKOGAWA developed Data-Driven Plant Optimization Modeling (DDM) to solve thisproblem. It automatically formulates equipment models from historical data of operation. Using
this technology, we can reduce the cost of initial model building and model maintenance.
We have started experiments of DDM in several processes in order to verify the cost
reduction of the modeling and the accuracy of automatically created models. With a utility plant,
for example, we archived the reduction of 80% of man-hour to create equipment models for theplant. This technology will be applicable to pulp production processes.

Case Study by Replacing QCS of a Paper Machine
Masahiro Takashimizu
Hachinohe Mill, Mitsubishi Paper Engineering Corporation
In June 2014, QCS of PM5 in Hachinohe mill, has been updated. At the planning stage, we
intended to reduce the frequency of routine parts replacement/repair for the moisture meter
sensor head placed in the high temperature environment around the size press, and intended toreduce the paper broke through the improvement of the basis weight cross direction control
performance, as one of the benefits obtained through QCS update.
Few problems had been occurred and resolved. Major issues were the measurement value
fluctuation of ash meter sensor just after automatic calibration and basis weight cross direction
control. The excess profile variation was caused by the following two reasons. One wasinexperience in new control algorism and the other was mismatch between existed actuatorsystem and new QCS. After resolving these issues, we have succeeded to reduce the paper
broke.
This paper introduces the issues and their solutions in detail occurred in the installation andstart up.

Replacement Project of PM5 Rewinding Control System
Hiroyuki Sato

Niigata Mill, HOKUETSU KISHU PAPER CO., LTD.
Jagenberg ‘Vari-step’ winder in Niigata mill has been operated more than 27years to wind up
mainly woodfree uncoated paper which is produced by PM5.
This winder is used two drum winding system and that drive adapts Fuji Electronics’s DC
motor control system. On the other hands, Jagenberg original system controls slitter position,
core chuck position and rider roll nip pressure curve.
Currently, IHI Voith which inherits winder business from Jagenberg announces end of supportof this winding system, so that we decided to replace this system to latest one. At this time,these replace project was the first case in Japan. In this report, we introduce the overview of thisreplace project and difference between new system and old one.

Scanning Measurement Reboot― ZipLine ―Mikio Kojima
HPS P2 Sales Dept., Honeywell Japan Inc.
Honeywell's ZipLine measurement device combines Honeywell's proven sensor designs witha new, patented, flat sheet scanning system which is easier to install, and has a lower total costof ownership than traditional scanner designs, while assuring product quality and higher yields
for superior economic benefits.
Honeywell ZipLine is a self-contained scanning measurement device which provides
high-speed measurement of flat sheets without the cost, size, and complexity of traditional
O-frame scanners.
ZipLine is remarkable for what it doesn't have; rigid scanner beams, drive belts, carriage
wheels, linear bearings, power track, compressed air, or water. Compared to a traditionalscanner, ZipLine has 90% fewer parts, which, along with simplified installation and highperformance measurements, contributes to a low cost of ownership and unparalleled value.

The Strength and Technology of State-of-the-Art LED Color Sensor
Takato Kishi
IA Platform Business Headquarters, Yokogawa Electric Corporation

For online color sensor in paper production line, conventional xenon flash lamps have beenused as light source. Xenon flash lamps have some advantages on color measurement, because
they have sufficient illumination and relatively flat spectrum from violet to red for accurate
color measurement. However, on the other hand, the xenon flash lamps require seconds of time
for charging high voltage that makes color measurement intermittent. And its spectrum contains
ultraviolet ray which disturbs measurement on fluorescent sheet. To evaluate the effect offluorescence, the conventional color sensors have optical filter mechanism to switch “UV-in”
measurement and “UV-out” measurement. This means the two measurements are not obtainedat the same spot of the sheet simultaneously. On the purpose of addressing the challenges,
Yokogawa have developed a new online color sensor using LEDs as light source. The design
and technology of controlling visible LED and UV LED separately enable continuous color
measurement and reliable fluorescence measurement. Further, the LED controlling technology
provides a function of rejecting ambient light coming into sensor gap.
Another issue is that color measurement may be influenced by the positional relationshipbetween sensor and measurement plane because it is a kind of reflective sensor. Our new LED
color sensor is equipped with an optical system designed to minimize characteristics of pass-line
and pass-angle. In addition, it has a function of pass-line detection and compensation using IR
LED (our patented technology). As a result, our sensor is insusceptible to deflections ofpass-line and pass-angle.

The History of Technological Developments of the Paper Industry in Japan
Part 5: Integrated Mills and New Wood Resource Sites
Kiyoaki Iida
The integrated mill model, where paper was manufactured with pulp produced in-mill, wasestablished using softwood in Kiso and Fuji areas, which the Meiji government sold as a newsource of revenue. At the end of the 19th century, the integrated mills were constructed one after
another mostly in Shizuoka area. Their plants mostly imported were in a larger and larger scale.
A group of engineers, introduced as the second generation in the Part 3, worked actively andknow how was accumulated in the industry. That made the next expansion possible.
As the demand grew and wood resource got scarce, mills were constructed in Hokkaido
which reserved more forest. Tomakomai mill, Oji paper and Ebetsu mill, Fuji Paper were large
enough to be competitive for imported paper so that their product replaced the imported.
The demand still kept growing at the rate of 10 % a year, forest in Sakhalin was interested in.
Oji Paper, which took over geological survey by Mitsui & Co., and Fuji Paper built mills there.

Fuji Paper, of which CEO was Ohkawa, introduced kraft process and sold wrapping paper withgood profit. In 1938, Sakhalin shared 40% of the total pulp production in Japan, and that of
Hokkaido was 35%. In 1942, the pulp capacity in Sakhalin was 421 thousand tons per year anda half of the pulp produced there was brought back to the inland.

Corporate Profile & Products Information (30)
Honeywell Japan Inc.
We Honeywell Japan Inc., is Japanese subsidiary of Honeywell United States, it wasestablished in 1982, which has subsequently led domestic affiliate companies to join into one
Honeywell group. Honeywell products have been around in Japan for more than 60 years. Three
SBG Honeywell's products being supplied in Japan are, Aero space, Automation and Control
Solutions, Performance Materials and Technologies. As Honeywell group, it is home to 127,000
employees in 1250 offices and factories in 70 countries around the world.
We described further details of Honeywell Japan in Japanese below.

－Peer Reviewed－
Chemical Mapping of Cell Wall Components
Dan Aoki, Yasuyuki Matsushita and Kazuhiko Fukushima
Graduate School of Bioagricultural Sciences, Nagoya University
Time of flight secondary ion mass spectrometry (TOF-SIMS) is a rapidly developing
technique that provides chemical information about the solid sample surface and does not need
any pretreatments. The significant advantage of TOF-SIMS over other methods is the direct
visualization of many organic/inorganic chemicals on the sample surface with submicron lateral
resolution. Here, the applications of TOF-SIMS to wood science are reviewed.
Plant cell wall consists of three major polymers (cellulose, hemicellulose, and lignin) andmany other inorganic and low-molecular-weight organic chemicals. Usually, the polymer
components are detected as fragment ions in the TOF-SIMS measurement. The fragmentation
behaviors of the polymers are essential to discuss the original structure so that the behavior isdescribed. Especially, the behavior of lignin is described in detail. Subsequently, several resultson the relative amounts and the chemical structure of the lignin in specific plant tissues arediscussed. A report using TOF-SIMS to discriminate the indistinguishable sapwood fromheartwood in discolored ancient wood material is also introduced.
The recent advances in cryo-TOF-SIMS are described. Cryo-TOF-SIMS can deal with afrozen-hydrated sample and is a powerful approach to visualize water-soluble chemicals ofnearly equal distribution in a living system. At last, results on pulp and paper chemistry using(cryo-)TOF-SIMS are described briefly.

JAPAN TAPPI JOURNALCONTENTS

４

April 2016

Vol.７０, No.４

Welcoming New Emploees
６ Introduction to Oji Papéis Especiais Ltda. in Brazil……Shinya Akimoto
１
０ Study about Recycling for UV Cured Prints……Takanori Otsuhata, Kazumasa Toyota, Chika Hirabaru, Moe Fukuoka and Shisei Goto

１
４ Reduction Electricity Cost by Enhancing the Capacity of TMP Plant……Takeshi Sugimoto

１
９ Energy Saving by Introduction of Thermocompressor to the Container Board
Machine……Yuri Itoh２
４ Energy Saving Performed by Remodeling Drainage System of No.４Paper
Machine……Hajime Endo
３
０ Efforts for the Practical Use of Cellulose Nanofibers―The Development of Functional Additives―……Masayuki Kawasaki

３５ Review of Biorefinery Work Based on the Production of Dissolving Pulp……Yosuke Uchida３
９ Preventive Measures against Insect Invasion by Improvement of Supply Air
Balance at PM８……Yuichi Morita
Topics & Information

４
４ Report on the Results of the Fiscal２
０
１
５Follow―up Survey on JPA’s Action Plan
for Low―Carbon Society and Related Information on Measures against Global
Warming in the Japanese Paper Industry……Yasuharu Sakina
６
２ Nano―Cellulose Seminar Hosted by the Embassy of Canada in Japan……Takanori Miyanishi

６
６ Upgrading Paper Machines with Virtual Technology……Peter Fisera and Erik Bargfrieder

７
０ A Report on Tokyo Paper２
０
１
５, a Joint Conference of the９th International Paper
and Coating Chemistry Symposium & International Paper Physics Conference……Takanori Miyanishi

７
７ The History of Technological Developments of the Paper Industry in Japan
Part６：The Struggle of Washi Industry and Environmental Concern……Kiyoaki Iida
Introduction of Research Laboratories
（１
１
０）

８
６ Laboratory of Wood Chemistry and Biochemistry, Division of Sustainable
Bioresources Science, Faculty of Agriculture, Kyushu University
Review Article（Original Paper）

９０ Current Situation of the Japanese Pulp and Paper Industry―Special Lecture of Tokyo Paper２
０１５―……Takanori Miyanishi

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Committee report
Essay on Intellectual Property
Coffee break
Papyrus

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Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 April JAPAN TAPPI JOURNAL
Vol.70, No.4 Abstracts

Introduction to Oji Papéis Especiais Ltda. in Brazil
Shinya Akimoto
Technology Department, Oji Imaging Media Co., Ltd.
Oji Papéis Especiais Ltda. (hereinafter called OPE) Piracicaba Mill was established in 1953,
to produce paper by using the sugar cane bagasse pulp, and was acquired by Oji group in 2011,
which had had the technology tie-up with OPE for 25 years and counting.
OPE is located in Piracicaba city in Brazil and has two paper machines and three coatingmachines. The company has supplied high quality coated paper in Brazil, and its capacity is
120,000 t/y. OPE has big share in Brazil, about 80% with thermal and carbonless paper.
In recent days, having been demand increase in Latin America, The mill is expecting to makethe capacity investment.

Study about Recycling for UV Cured Prints
Takanori Otsuhata, Kazumasa Toyota, Chika Hirabaru, Moe Fukuoka and Shisei Goto
Nippon Paper Industries Co., Ltd.
In recent years, various kinds of ink and/or printing system have been developed to reduceenergy consumption and the time for delivery as well as to get higher print quality. Several
kinds of printing materials from recovered papers were chosen to evaluate their recyclability byusing high density pulping and/or PFI mill treatment as a mimic of a mill kneader alternative.
The dirt speckles of the de-inked pulp from UV cured, UV vanish over coated, and polystyrene
over coated prints were much higher than those of conventional prints. Although high reactive
UV cured prints brought fewer dirt counts than the conventional UV prints, they were also
affected by printing conditions, especially the intensity of total irradiation of UV lamp for
curing. The surfaces of print sample were investigated by using attenuated total reflection
infrared spectroscopy (ATR-IR) method. As a result, the ATR-IR methods brought more preciseclassification for each sample in terms of their recyclability compared with conventional solvent
detection method. Consequently, the ATR-IR method will be able to contribute more efficiently

to sort out recovered papers with poor recyclability in order to enhance quality control ofde-inked pulp production in a mill. It is very important to collaborate with companies related toprinting industries to facilitate recycling of recovered papers including UV cured prints.

Reduction Electricity Cost by Enhancing the Capacity of TMP Plant
Takeshi Sugimoto
Chuetsu Pulp & Paper Co., Ltd.
For remarkable rise of crude oil price, Chuetsu Pulp & Paper Futatsuka mill stopped an
expensive dust coal boiler of the generation unit price in June 2010, and shifted to running only
by a biomass boiler. As a result, the self-generation of electricity of Futatsuka mill is used up
with facilities except thermomechanical pulp (TMP) plant. Thus, it was necessary to usepurchase electricity for the operation of TMP plant which needed much electricity. For ability ofstorage and production capacity, Futatsuka mill couldn't but operate TMP plant in daytime since
the unit price of purchase electricity was higher on weekdays.
In this report, we would like to introduce the case study that could increase the capacity of
production as well as energy and cost saving significantly have achieved with making use of theequipment that has so far remained unused.

Energy Saving by Introduction of Thermocompressor to the Container Board Machine
Yuri ItohYashio Mill, Rengo Co., Ltd.
Rengo Yashio mill has been engaged in saving energy with all of mill employees and thisapproach has gained a high reputation from many associations. This report describes approachand effect for installation of thermo compressor, surplus steam recovery system, as one of theenergy conservation activities. Even though it was the first study and experience of thermo
compressor operation with a paperboard machine of Rengo, we found a means to utilize it bymaking up the control system with minimum required equipment. Moreover, this system has
been operated without any problems in manufacturing process and any additional energy
consumption. Although this trial is not finished yet, the steam recovery system with thermo
compressor can be very beneficial if the process condition is fitted to the system.

Energy Saving Performed by Remodeling Drainage System of No.4 Paper Machine
Hajime Endo
MPM OPERATION Co., Ltd.
Our No.4 paper machine operated at Hachinohe mill of Mitsubishi Paper Mills LTD was notreally outstanding at steam saving as compared with other paper machines.
A factor is difference of the steam consumption at the dryer part. And problems are lower
efficiency of the steam equipment and differences of the operational condition, the mechanicaldrainage flow, and the drainage balance. We modified the drainage system as a solution of these
problems in December 2013 and achieved big steam saving.
This report is described about the past problems, the modifying of drainage system, and theresult of steam saving.

Efforts for the Practical Use of Cellulose Nanofibers－The Development of Functional Additives－
Masayuki Kawasaki
Nippon Paper Industries Co., Ltd.
As a comprehensive biomass industry, Nippon Paper Industries Co., Ltd. tries to develop
various new business areas making the most of woody biomass. As one of the new use ofcellulose, we focus on production and development of various applications of cellulose
nanofibers (CNF). We examine the use of CNF not only for functioned nanocomposite (withresin or rubber etc.) utilizing its high fiber strength and low thermal expansion, also for an
optical film utilizing its high transparency and for a catalyst carrier or the absorbent utilizing its
high surface area. Among those uses, because the use of CNF as functional additives such as
thickener or dispersant is a similar use as existing carboxymethyl cellulose (CMC), earlycommercialization is expected. In this report, as the example of the effort for commercialization
we present the development of CNF as functional additives. And the production method of CNF,
the solidification technology for practical use and CNF's various characteristics as additives arereported.

Review of Biorefinery Work Based on the Production of Dissolving Pulp

Yosuke Uchida
Bioresource Development Center, Oji Holdings Corporation
As a part of biorefinery business of OJI group, we started commercial production of
hardwood dissolving kraft pulp at Yonago mill since May 2014. At the same time, we also
initiated verification tests for furfural production. In this report, the review of our biorefinery
process and operating experiences are presented.

Preventive Measures against Insect Invasion by Improvement of Supply Air Balance at
PM8
Yuichi Morita
Otake Mill, Nippon Paper Industries Co., Ltd.
The No.8 machine in Nippon Paper's Otake Mill produces paper of food use, so the presenceof any insects in the paper can be directly linked to customers' complaints, and cause serious
problems leading to the loss of customer trust. In recent years, various measures have been
implemented to prevent insects invading the paper-machine room. This has reduced the numberof complaints concerning insects being found in paper, but has not eliminated them entirely.
Therefore, new measures were taken to improve of supply air balance, intended to prevent
insects entering from outside. As a result, a significant reduction in insect defects was achieved.
This presentation will report the contents of the investigation that was carried out, and theresults that were achieved.

Report on the Results of the Fiscal 2015 Follow-up Survey on “JPA's Action Plan for
Low-Carbon Society” and Related Information on Measures against Global Warming in
the Japanese Paper Industry
Yasuharu Sakina
Japan Paper Association
The Japan Paper Association (JPA) established its “Voluntary Action Plan on Environment”
in 1997, in response to Nippon Keidanren’s call to the Japanese business community to organize“Keidanren’s Voluntary Action Plan on Environment”. Since then, JPA has carried out afollow-up survey and published the results every year.
As the Voluntary Action Plan finished in fiscal 2012, JPA newly started “JPA's Action Plan
for Low-Carbon Society” and has been actively addressing global warming prevention in orderto achieve the following targets set in the plan:*Compared to BAU scenario(based on specific CO 2

emission rate of 2005), reduce fossil

energy-derived CO 2 emissions by 1.39 million tons by fiscal 2020 .
*In view of securing forest resources and increasing forest carbon sink, expand forest
plantation areas owned or managed by the paper industry at home and abroad to 700 thousand
hectares by fiscal 2020.
According to the results of the fiscal 2015 follow-up survey (actual results for fiscal 2014),
fossil-energy derived CO 2 emissions in fiscal 2014 was 18.05 million tons, a 27.6% reduction
compared to the fiscal 2005(24.91 million tons).This is attributed to each manufacturer's active
efforts including energy saving and energy conversion from fossil energy to non-fossil energy
such as biomass energy.
In addition to the results of the follow-up survey, this report introduces the current energy
situation in the Japanese paper industry, outline of the next phase of JPA's Action Plan for
Low-Carbon Society spanning the ten-year period from fiscal 2021 through 2030 and the latest
information of countermeasures against global warming.

Nano-Cellulose Seminar Hosted by the Embassy of Canada in Japan
Takanori MiyanishiJAPAN TAPPI
Nano-Cellulose Seminar hosted by the Embassy of Canada in Japan on January 26, 2016
attracted 100 participants and active discussion was made. A professor of University of British
Columbia (UBC) and project managers of Alberta Innovates – Technology Futures (AITF) wereinvited from Canada to present Canada’s role in nano-cellulose materials from basic science tocommercialization. An excerpt of the seminar was reported in this paper.

Upgrading Paper Machines with Virtual Technology
Peter FiseraManaging Director CF Procsim GmbH
Erik Bargfrieder

Geshäftsführer e.b. consulting & project management GmbHThe majority of all paper machines are rebuilt several times in order to increase production
capacity. The "less important"' parts such as recuperation, ventilation equilibrium, exhaust heatand sometimes steam and condensate system are not given particular preference. The original
concept of energy efficiency has changed dramatically. Because of the complexity ofrelationships between efficiency, quality and production the energy optimization of a paper
machine is not possible without profound analysis of the drying process! The mathematicaldescription in the form of a virtual machine is the shortest and most efficient route to thedestination in such tasks. Simulation is the only means by which planned capital investments toboost the drying performance of paper machines (to save energy or increase capacity) can beeffectively proven in the pre-project phase. The technical design of planned upgrades is
optimized and fine-tuned before the project start to rule out any unpleasant surprises later. The
effectiveness of new equipment can be observed in the virtual paper machine using supplier
guaranteed parameters. This brings massive and efficient support for all technical issues andreduces project risks significantly. Virtual technology brings higher project profits throughlower project costs, optimized solutions and shorter start-up periods.

A Report on Tokyo Paper 2015, a Joint Conference of the 9th International Paper andCoating Chemistry Symposium & International Paper Physics Conference
Takanori MiyanishiJAPAN TAPPI
Many scientists and engineers from overseas joined us for Tokyo Paper 2015, a joint
conference of the 9th International Paper and Coating Chemistry Symposium and theInternational Paper Physics Conference, which took place in the University of Tokyo during
October 29 to November 1 in 2015. The conference set the stage for their communication anddiscussion focusing on paper and coating chemistry, paper physics, the latest developments inbio-composites and nanocellulose materials, new papermaking technologies including stratified
forming and foam forming, and computer process simulation. The conference provided an
opportunity for future collaboration between the members in an in-depth investigation that
could continue to transform the pulp and paper industries to stay viable and profitable.
The History of Technological Developments of the Paper Industry in Japan
Part 6: The Struggle of Washi Industry and Environmental Concern

Kiyoaki Iida
How was the washi industry in the Edo period? Based on old historical method, they usedkozo (mulberry) and mitsumata (paper bush) as raw fiber, prepared pulp and made sheet byhand. Many domains (han) encouraged papermaking as it was an important business to theirrevenue. With substantial supply of paper, wood block printing flourished in everyday life.
As the Meiji era started, letter press printing and paper carton were introduced as a new wayof life, and paper that fit to them, called yoshi, was imported. Washi unfortunately lost its
printing-paper market. Then, washi countered the trend. In free spirit relieved from restriction ofold domains, new developments, which Genta Yoshii was famous for as one of pioneers, weretaken in like use of cylinder machine, new product exploitation and open cooperation. Washi
maintained its output that was larger in money than yoshi until 1915, 40 years since the start ofyoshi production in Japan. Typical new products were typewriter paper and Tengujo (very thin
and uniform paper), and were exported abroad. The volume exported was 350 tons in 1913.
The output, however, decreased drastically after 1920. It was not competitive in price to yoshi,
which

was produced in a big machine with wood pulp. The washi industry is now producing

products of highly functional quality.

－Peer Reviewed－
Current Situation of the Japanese Pulp and Paper Industry－Special Lecture of Tokyo Paper 2015－
Takanori MiyanishiJAPAN TAPPIThe manufacture of pulp and paper is one of the world’s oldest industries. The significance of
paper and paper products is obvious to everyone; no manufactured products play a moremeaningful role in every area of human activities. The industry has developed through manytechnological innovations for centuries. Japan is an energy efficient country and the emission
per GDP is very low among advanced economies. The carbon dioxide emission per unit ofpaper and paperboard production has been reduced significantly due to industries’ numerous
efforts including energy saving, conversion from fossil fuel to biomass residues and installationof energy efficient equipment. We aim to realize a green recyclable economy and nurture “urban
forest.” It is a part of the program to reduce fossil fuel consumption and carbon dioxide

emission in preventing global warming. By applying biotechnology to forest science, Suzano in
Brazil will start commercial scale field tests of gene transformed Eucalyptus trees that grow fastor hold the traits of salt, frost or drought stress tolerances. In advanced economies, printing andpublishing on-demand is the future of the industry and is one of the most important strategies
that publishers need to embrace to grow in today’s digital marketplace. In the United States,
TAPPI Agenda 2020 Technology Alliance encourages the development of advanced
manufacturing technologies that promise transformational impact on the paper and forest-basedindustries. In Europe, deep eutectic solvent was selected as the winning concept to lower carbon
dioxide emissions. By dissolving wood and selectively extracting lignin, it could replace bothchemical pulping and mechanical pulping. In Japan, the Nano Cellulose Forum was established
for its rapid commercialization. It is all-Japan based consortium, for sharing information andenhancing cooperation among academies, industries and governments. Dr. Isogai et al. received
Marx Warenberi Award for their research on TEMPO mediated cellulose nanofibers. By their
method, the energy need can be reduced significantly and the cellulose produced this way candisperse homogeneously. It is a discovery that paves the way for nanocellulose being one key
product of the future forest industry.

JAPAN TAPPI JOURNALCONTENTS

５

May 2016

Vol.７０, No.５

Topics & Information

１ Energy Saving Effect by Air Dryer Blow Nozzle Upgrade at PMN６
in Ishinomaki Mill……Hideyo Yamaguchi
５ Characterization of the New Polymer and Its Use for Low Pressure Boiler Water
Treatment……Shintaro Mori
１
０ Approaches and Issues on Odor Problems……Eriko Tawara and Keijiro Soma
１
４ The Method of Curing Activated Sludge Treatment Process during Shutdown……Kenji Hayashi

１
９ The Latest Wet―end Control Technology by New Type Retention Aid
REALIZER FX Series ……Kazutaka Kasuga, Koichi Tadaki and Hiroyuki Oishi
２
５ The Latest Technological Trends of PAM Based Dry Strength Resins……Shigeki Nobukuni, Hideo Baraki and Koji Yoshitani

３
０ New Generation of Functional Coating Binder Allows New Coating Properties
Design and Higher Coat Efficiency……Tatsuya Ohnishi, Jan―Luiken Hemmes and Colin Liu

３
４

ANDROMEDA Latest Technology for Tissue Converting Machineby FUTURA……Yasuhiro Takeyama
３
７ New Softness Evaluation Tissue Softness Analyzer TSA……Hiroyuki Miyaoka and Kunio Sasaki

４
１ The History of Technological Developments of the Paper Industry in Japan
Part７：Summary and Discussion……Kiyoaki Iida

４
７ The９th Public Meeting with Japan Patent Office Examiners……Takanori Miyanishi
５
２ ２
０
１
５Research Projects of Universities and Government Research Institutes……Wood Science Committee, JAPAN TAPPI
Research Report（Original Paper）

６
１ Preparation, Characterization and Application of Organic Conducting Polymer―
Silica Nanocomposite Particles……Taito Sugiura, Isao Komatsu and Shuichi Maeda
０
３ Committee report
６０ Coffee break
７
４ Papyrus
７
９
８
４
８
６
９
７
９
８
１
０
０

Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 May JAPAN TAPPI JOURNAL
Vol.70, No.5 Abstracts

Energy Saving Effect by Air Dryer Blow Nozzle Upgrade at PMN6 in Ishinomaki Mill
Hideyo Yamaguchi
Ishinomaki Mill, Nippon Paper Industries Co., Ltd.
Ishinomaki Mill is one of the main mills of Nippon Paper Industries.
Its annual production amounts to 860,000 tons of paper from its 6 paper machines and 2
off-machine coaters. A pulverized coal boiler provides the main source of energy, with 2 black
liquor recovery boilers and a biomass boiler also contributing to the energy supply.
We started operating the N6 paper machine (with on-machine coater) to reinforce ourcapacity in November 2007. The N6 paper machine is one of the largest capacity machines(1,005 tons per day) in Japan, and makes light-weight coated paper and A3 coated paper.
The speed of this paper machine is restricted by its drying capacity. A further problem is sheet
breaks caused by lumps of dried coating color piling up in the air floating dryer. We installed a
new blow nozzle in the air floating dryer in September 2014 to enhance drying capacity, and to
avoid the lump pile-up by stabilizing web conveyance. As a result, we achieved a 20% energy
saving through enhanced drying efficiency. However, it did not prevent lump pile-up

enough.

In this report I explain equipment details of air-dryer blow nozzle and operating experience withsaving energy effect and dealing with sheet running.

Characterization of the New Polymer and Its Use for Low Pressure Boiler Water
Treatment
Shintaro Mori
Kurita Water Industries Ltd.
A boiler had a problem with scales adhering internally. A scale remover has been requiredin addition to conventional chemical for boiler water treatment, but if excessive remover isadded, the steel material in the boiler pipe may be damaged.
Kurita Water Industries has invented a multi-purpose chemical preventing scale and corrosion
in boilers and removing scales. It has low in corrosivity against steel materials. It also comprises

products approved by the United States Food and Drug Administration (FDA). It may be
proposed to customers seeking safer and more reassuring boiler water treatment chemicals, suchas hospitals and food and beverage factories.

Approaches and Issues on Odor Problems
Eriko Tawara and Keijiro Soma
Material Analysis Center, Innovation Promotion Division, Oji Holdings Corporation
We receive a lot of consultations about the group-wide odor problems and get requests foranalyses of those. The contents include various things such as an official method analysis
related to Offensive Odor Control Law and an investigation of off-flavor that occur in the
products.
In this report, two topics about odor problems on which we have been working were
described. One is concerned with the environmental odor that might affect the surroundings ofthe mill. The law regulates the odor generated from the mill or the workplace for the purpose ofconservation of living environment and health protection of the people. The odorants
regulations that measured in equipment, is being changed to odor index regulations using thehuman sense of smell. Since olfactory panel is required to have normal sense of smell, we haveconfirmed the normality by the olfactory test using five types of odorants. When the mill has
odor problems, we should go there to carry out sensory evaluations and gas samplings. It waspossible to help solve the problems by analyzing the samples in our lab to identify theodor-causing substances.
The other is an analysis of off-flavor generated from the products. We are often asked toanalyze the tissue papers and the paperboards with unusual smell. We have been manufacturing
paperboard and cardboard , have a particular attention to the complaints by the musty order(2,4,6-Trichloroanisole: 2,4,6-TCA and 2,4,6-bromoanisole: 2,4,6-TBA).The case analyzed in
the past and the proactive measure were described. We carried out the sensory evaluation of
products and sensed musty odor. The sources have been identified by the instrumental andprocess analysis. As a proactive measure, we have implemented the test for selecting sensitive
panels of smell.

The Method of Curing Activated Sludge Treatment Process during Shutdown
Kenji Hayashi

Mushugen Industries Co., Ltd.
As one of the characteristics in the pulp and paper waste water treatment, we can point out
that there are long no-load running terms due to “Shutdown” once or twice a year. Long no-load
running terms put load-fluctuation stress on the activated sludge treatment process : mainprocess of the pulp and paper waste water treatment, and cause deterioration of performance ordegradation in the quality of activated sludge flocs, and may result in various troubles at therestart after Shutdown.
Expressly after the Lehman Shock, during the large-scale equipment work or adjusting the
production, it tends to extend the term of Shutdown. Even the wastewater treatment facilities
have actualized a trouble which have not been a problem before, when the restart after the
shutdown. Therefore, it has become more important to support during the shutdown.
Mushugen Industries Co., Ltd. have cultivated the technique of curing activated sludge
treatment in other industries, and we have promoted the application in the field of pulp andpaper wastewater treatment.
In this paper, we describe an overview of the knowledge or results acquired by experience init.

The Latest Wet-end Control Technology by New Type Retention Aid “REALIZER FX
Series”
Kazutaka Kasuga, Koichi Tadaki and Hiroyuki Oishi
Technical Dept., SOMAR Corporation
We have been working on developing more efficient retention aid with new concept toreplace the today’s main Dual Addition System of Cationic retention aid and Anionic retention
aid. As a result of the effort, “AXISZ System” was successfully brought to market,“AXISZ
System”consists of “REALIZER A Series”/high-performance coagulant, good for minimizing
the stain of paper making machine and “REALIZER R”Series/high-performance Cationicretention aid.
“AXISZ System” is very unique and is extremely different from competitive products
design. Especially, in case of Cationic-single addition,“REALIZER-R300”achieved extremely
better retention that resulted in expanding its application to coating machines and board paper
machines. Since then, we kept working on the development of Cationic polymers good forsingle addition.
As was pointed out, closed system of water and increase of waste paper ratio have brought alot of pitch and ash. Consequently, there has been a trend that increased dosage of various kindsof chemicals for fillers. As for retention aid, there are cases that conventional dual addition
system or cationic single addition cannot work well as before.
Under these circumstances, we newly developed“REALIZER FX Series”/Anionic retention
aid and then, have been working on establishing the innovative retention system based on theAnionic retention aid. In this paper, we would like to show the instances of REALIZER FX
System applications and dual addition system with new concept which is effective in stable
fixation of various kinds of chemicals for filling in combination with “REALIZER A Series”.

The Latest Technological Trends of PAM Based Dry Strength Resins
Shigeki Nobukuni, Hideo Baraki and Koji Yoshitani
Technology Management Department, Paper Chemical Business Division, SEIKO PMC
Corporation
Polyacrylamide based dry strength resins (PAM) are multifunctional chemicals which arewidely used to enhance paper/paperboard strength, and to improve drainage, and retention offiber, fine, and filler.

In recent years, papermaking conditions have changed by greater use ofrecycled pulp, high amount of coated broke in furnish, higher loading of filler, increases in
speed of paper machine and closed water system in paper mill. These trends results in therising of pH values and electric conductivity of furnish and the increasing of dissolved andcolloidal substances in papermaking systems, that disturb the absorption of papermaking
additives to fiber and fine. Under these circumstances, the performance of conventional PAM
has become unsatisfactory.
Recently we developed two types of new technology for PAM. One is the manufacturing
process for highly branched and higher molecular weight PAM, and the other is introduction ofnovel absorption unit in PAM.

In this report, we will explain the characteristics of our new

PAMs as the latest technological trends of PAM.

New Generation of Functional Coating Binder Allows New Coating Properties Design andHigher Coat Efficiency
Jan-Luiken Hemmes
Business & Application Development Paper APAC, Kemira (Asia) Company Ltd.
Colin Liu

Surface Chemical APAC, Kemira (Asia) Company Ltd.
Tatsuya Ohnishi
Kemira Japan Co., Ltd.
The main functional role of a Paper coating binder is to bind the pigment particles, whichmake up for more than 85% of the dry weight of the formulation. In addition the binder affects
the printability of the paper by helping the absorption and drying of the printing ink. Thus arange of coating binders has been developed over the years to cover the needs of coating
pigments with different surface characteristics and fineness as well as work well for various
printing processes Approximately 50% of the coating costs can be attributed to the binder
system, so one of the main driving forces in binder development has been to reduce the cost of
the binder system. As starch as coating binder is significantly cheaper than latex it has become
very common to use more and more starch in coating formulations. Especially in pre-coating
and also top coating for matte and silk papers of lower quality adding more starch is a feasible
option. Too much starch as binder, however, has also some disadvantages like lower binding
strength, negative effect on gloss, fold cracking and mottling and results in lower coating solids,
high shear viscosity and difficulties to run lower coat weights. The new patented Fennobind
binder technology deviates in a significant and surprising way from well-established knowledge
about synthetic binders. We will demonstrate in this paper the main deviations and give someideas how it is possible to utilize these new findings to develop more cost effective formulations
and show how papermakers can pass with this knowledge the current boundaries in order tocreate additional value.

“ANDROMEDA” Latest Technology for Tissue Converting Machine by FUTURA
Yasuhiro Takeyama
MATSUBO Corporation
FUTURA is a leading global technology company that creates and delivers converting
solutions which allow producers to capture market share and gain significant competitive
advantages worldwide. Some of FUTURA’s unique and proven technologies are introduced inthis article.

New Softness Evaluation Tissue Softness Analyzer TSA

Hiroyuki Miyaoka and Kunio Sasaki
Scientific Instruments Dept., Nihon Rufuto Co., Ltd.
One of the most import characteristics to determine whether a tissue is functional or not is the“softness”. The consumer can directly sense this parameter so that it influences the purchasing
behavior decisively. However, the commonly used term "softness" is not correct. The words“handfeel” or “grip” or “haptics” respectively should be used as the softness is only oneof several factors that influence the individual evaluation of tissue.
The individual perception of the handfeel is therefore mainly determined by the following
characteristics: the actual fiber softness/fiber stiffness (which is determined by the fiber material
itself, but also by added chemicals like softeners, wet strength agents or lotion); the surface andinternal structure, which depend on the manufacturing technology and on the “creping” and“embossing”, if applicable; and the stiffness, which is mainly determined by the fiber material,
the manufacturing technology and the used chemicals. Furthermore, the thickness, thegrammage and the number of plies come into play. This makes clear that it is, similar to theevaluation of the taste of wine or whiskey, a very complex and extremely subjective andtherefore unreliable parameter. This parameter is further influenced unconsciously by the color,the smell, printed patterns, the tester’s current mood and motivation, even the weather and theseason as well as personal preferences.

The History of Technological Developments of the Paper Industry in Japan
Part 7: Summary and Discussion
Kiyoaki Iida
After the Meiji Restoration, printing (letter press) and packaging (carton and container) wereintroduced as a new life style, and paper for them, called “yoshi “, was imported. Then, thedomestic paper industry was born to supply those kinds of paper. It, however, took thirty years
for the industry to take off. Since then, the industry grew at the rate of 6-10 % a year, supportedby the steady growth of GDP which was three percent a year, and replaced the imported
products. I believe that the thirty years before the takeoff was the preparatory period for thetechnological development of the industry.
One fact contributing the takeoff was a group of engineers who graduated from Tokyo Higher
Technical School (Tokyo Institute of Technology). They had chances of visiting abroad while
young, and innovatively led mill constructions and operation thereafter.
Regarding building paper machines, Japan started by copying imported machines. Then,Japanese iron works imitated newest technologies in imported ones, and finally supplied half anumber of paper machines installed in Japan.

Auxiliary equipment were also made bydomestic suppliers.
The most important characteristics of the Japanese paper industry is to have had interest inwood pulp in its early age (10 years later than America) and to have built integrated pulp andpaper mills. They started using softwood in Fuji and Kiso areas, and moved to Hokkaido andthen to Sakhalin, and built mills big enough to be competitive like Tomakomai mill of Oji PaperCo.
It is believed that the high levels of culture and technology in the Edo period, one of which
was high literacy rate, helped the growth of the Meiji era. People and goods in the Edo period,
however, could not move so freely as in Europe of the Industrial Revolution. The Meiji era
released this restriction and the technology began to develop dynamically along with cultural
evolution. The paper contributed to this development as a mean of helping free movement of
information and materials.

The 9th Public Meeting with Japan Patent Office Examiners
Takanori MiyanishiJAPAN TAPPIThe 9th public meeting was held for the examiner of Japan Patent Office to explain recent
developments of Japan patent policies and to hear experts’ opinions of intellectual property
departments of paper companies. The Patent Law has been revised, and it has become
acceptable for employees and companies to discuss and decide on fair rewards for inventions
beforehand. For the company, deciding on rational rewards through consultation means
avoiding the management risk of being hit later with a huge claim by an in-house inventor. The
Japan Supreme Court has given a new and unique ruling on the interpretation of
product-by-process (PBP) claims. The Supreme Court held that for an invention of a product,even if a process to manufacture the product is stated in the claims, the technical scope of theinvention and the gist of the invention should be determined and recognized as covering
products that are identical in structure and feature to the products manufactured through theprocess described in a patent. The Supreme Court adopted the product identity theory.

－Peer Reviewed－

Preparation, Characterization and Application of Organic Conducting Polymer-Silica
Nanocomposite Particles
Taito Sugiura*1, Isao Komatsu*2 and Shuichi Maeda*1, 2*1

Course of Electro Photo Optics, Graduate School of Engineering, Tokai University*2

Course of Science and Technology, School of Science and Technology, Tokai University
We

have

preparedorganic

conducting

nanocomposite

particles

whichutilize

polypyrrole/polyaniline as conducting parts and small silica particles as dispersants. The
nanocomposite particles of polypyrrole/polyaniline and silica represent a potentially usefulprocessable form of polypyrrole/polyaniline, a normally intractable conducting polymer.
Transmission electron microscopy (TEM) studies confirm that the polypyrrole-silica/polyaniline-silica nanocomposite particles are made up of microaggregates of the original small
silica particles, which give rise to a raspberry morphology. The particle diameter of thenanocomposites as measured by the TEM observation can be varied over the range 200 – 400
nm

dependingonthecolloidsynthesis

conditions.

We

demonstrated

that

the

polypyrrole-silica/polyaniline-silica nanocomposite particles can be utilized as display elements
for electrophoretic display due to their high colloid stabilities. The electrical conductivities ofpolypyrrole-silica/polyaniline-silica nanocomposite particles are measured and the paper sheetscoated with these nanocomposite particles have higher conductivities compared to aconventional paper sheet. The polypyrrole-silica/polyaniline-silica nanocomposite particles canbe utilized as conductive paper sheets.

JAPAN TAPPI JOURNALCONTENTS

６

June 2016

Vol.７０, No.６

Energy SavingⅠ
１ Opening Address of the２０th Saving Energy Seminar……Yoshihito Meguro
３ ISO Standardization of Calculation Method of Carbon Dioxide Emission Intensityfrom Iron and Steel Production……Hiroyuki Tezuka
８ The Operating Experience of the Vacuum Evaporator, Type of Vapor
Recompression……Chiaki Aoyama
１
２ Development and Application of Hyper Flat Drive System……Eijiro Nakashima
１
７ Hydrogen Energy Supply Systems Utilizing Renewable Energy……Hiroyuki Ota,
Hirofumi Kurita, Takashi Nakagawa, Tatsuoki Kono, Fumiyuki Yamane and Naoki Ohtaki
２
３ Energy―Saving Method of the Satellite Type by JBIC……Yasuhiko Shirota
Topics & Information

２
９ The Activity of Energy―Saving Produced Results in a Short Term……Ryosuke Kotani

３
３ State―of―the―art Recovery Process Technology by Andritz―A Futuristic Pulp Mill with Integration of Fiberline and Recovery Processes―……Masato Tsuchitana, Daisuke Nagamine and Chiaki Kawakami

４０ LignoBoost―Further Usage of Lignin from Your Kraft Pulp Mill―……Hiroshi Yamashita

４４ Development of the New Generation Latex that Has Excellent Picking Strength
and Runnability for Paper Coating……Takuro Kawaguchi and Masaya Kamo
Introduction of Research Laboratories
（１
１
１）

４
８ Laboratory of Tree Cell Biology, Division of Forest and Biomaterial Sciences,
Graduate School of Agriculture, Kyoto University
Research Report（Original Paper）

５
２ Development of an Excellent Depth Feeling Wallpaper Screen Based on a New
Theory of an Optical Biomimetic Model of Human Skin……Akihiro Kuroda, Koki Kodama, Hiroki Okuda, Chitose Miyama and Shuichi Maeda

０
３
５
０
５
１
６
６

Committee report
Essay on Intellectual Property
Coffee break
Papyrus

７
１
７
６
８
６
８
７
８
９

Industry News（Domestic and International）
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 June JAPAN TAPPI JOURNAL
Vol.70, No.6 Abstracts

ISO Standardization of Calculation Method of Carbon Dioxide Emission Intensity fromIron and Steel Production
Hiroyuki Tezuka
Energy Technology Committee, The Japan Iron and Steel Federation
Climate Change Policy Group, Technology Planning Dept., JFE Steel Corporation
As one of the CO2 intensive industry, the Japanese steel industry addresses climate change inmany ways and one of the good examples is the establishment of the common indicator for
carbon dioxide emission intensity from iron and steel production; ISO14404. This paper
presents the overview of ISO14404, the challenges and solutions in the standardization process
as well as the future strategy of ISO14404.

The

Operating Experience

of

the

Vacuum

Evaporator, Type

of

Vapor

Recompression
Chiaki Aoyama
Niigata Mill, Hokuetsu Kishu Paper Co., Ltd.
We have been making large facility investment, emphasizing the environment load reduction
system. Particularly in Niigata mill, we have improved CO2 emission intensities by reduction ofusage fuel oil and introduction of Gas Turbine Generation and Heat Recovery Boiler. In COP21
held in France at the end of last year, the international framework of the global warming
measures become the historic agreement, and the importance of global warming measures andthe energy-saving actions have been increasing all over the world.
For the purpose of 2 old facilities over 35 years update, environmental load reduction, thereinforcement of the black liquor concentration process, we planned the introduction of new
vacuum evaporator, the name of H Train started the business operation since June 2015. We
adopted method Vapor-Re-Compression-System (abbreviate it to VRC as follows) which
compressed the steam by the re-compression fan again, and strengthened the black liquor
concentration ability and steam reduction. The introduction of the VRC method in the blackliquor concentration facilities made by Sumiju Plant Engineering Co., Ltd. is the first in Japan.
After the operation of H Train, we have continued the stable pulp production. Energy
consumption rates and CO2 emission intensities of Niigata mill have been tending to reform. In
this paper, we briefly describe the outline of the equipment and operating experience of thevacuume evaporator, type of vapor recompression.

Development and Application of Hyper Flat Drive System
Eijiro Nakashima
BANDO CHEMICAL INDUSTRIES, LTD.
H.F.D. (Hyper Flat Drive system) is one of new developing product for an energy serving
power transmission system replaced from V-belt system which currently used V-belttransmission system in air conditioner, blower, and ventilate system so on at production plantand commercial facility.
Flat belt self, they have two weaknesses or disadvantage one is belt side tracking, other one isdropping the belt tension those weakness compensate by our new developing mechanical device,self-side tracking control and automatic belt tensioner device.
It was possible to achieve energy serving, long life time and maintenance free, As result of
H.F.D could reach about 7% energy saving compared V-belt system and there times of life time.
Other features are cleanness and quietness.

Hydrogen Energy Supply Systems Utilizing Renewable Energy
Hiroyuki Ota, Hirofumi Kurita, Takashi Nakagawa, Tatsuoki Kono, Fumiyuki Yamane
and Naoki Ohtaki
New Energy Solution Project, Toshiba Corporation
Some variety of hydrogen energy storage and supply system has been developed. The basic
concept of those systems is to utilize hydrogen that is derived from renewable energy, aiming toprovide carbon-free energy systems. Hydrogen-based autonomous energy supply system“H2OneTM” has developed for a “Business Continuity Plan Model”, and has been under
demonstration in Kawasaki-city. The other “H2OneTM” equipped solid metal hydrate storage
has constructed in a hotel as a “Resort Model”. And development of H2EMSTM which has thefunction that predicts demand and supply of hydrogen is advanced as the system for the factory.

“Energy-Saving Method of the Satellite Type” by JBIC
Yasuhiko Shirota
JBIC：Japan Business Innovation Consulting Co., Ltd.
Energy-saving of the satellite type is a joint promotion project led by the head office. Project
team called Satellite is a gathering of a few factories. Usually this project is composed of 3
factories (own factories or group company's factories) and the head office.
～The Satellite's merits～
1.

A team of factory can be formed from a small number of members. (Each factory)

2.

At the same time, in three factories together, they can put out results of energy-saving.

3.

Communication between the head office and each factory can be actively maintained.

4.

External wisdom is obtained (Headquarters technical department and each factory).

5. The principle of competition works.
6. Deep knowledge and information for the target process is required in order to share
information, and to acquire skills.
7.

It will form the structure which can continue in between the head office and factories.

8. It can plan the energy saving development of the head office-led model, and the profit
contribution of all factories is obtained.

The Activity of Energy-Saving Produced Results in a Short Term
Ryosuke Kotani
Nakatsu Mill, Oji F-Tex Co., Ltd.
Amid rising interests over renewable energy, Oji group has been positively progressing theutilization of biomass and hydroelectric power generation. Since paper manufacturing is anenergy-intensive industry, the amount of purchasing energy such as LNG is still large. As recent
rise in energy prices influencing severely over the profits of the industry, searching andpracticing energy-saving matters that can be realized in short term are desired. Since setting up
an aim of reducing 1.5% of energy consumption from the planned number based on the
production plan and progressing energy‐saving activities in every Oji FTEX mills, Nakatsu
mill has limitedly settled a small team and worked on energy-saving during the second half of2013 in order to produce results in a short term.

As a result, 19 actions have progressed in six months and succeeded in reducing 122 kL ofenergy per year measured in terms of crude oil.（corresponding to 0.45% reduction compared tothe previous year）
This paper presents the activity of the “Energy-saving team”, two energy-saving acts“
( Improvement of steam traps” and ”Halting single compressor”) and “System of visualizing
energy consumption rate” which was a practical tool to progress energy-saving activity in
manufacturing sites.

State-of-the-art Recovery Process Technology by Andritz―A Futuristic Pulp Mill with Integration of Fiberline and Recovery Processes―
Masato Tsuchitana, Daisuke Nagamine and Chiaki Kawakami
Andritz K.K.
Kraft pulp production mill system is an ideal process as all chemicals are recycled and energy
is generated self-sufficiently or more than enough with the biomass fed to the mill. The kraft
mill system is consisting of a number of processes in the pulp production line and the recovery
island. Until end of 90’s individual processes like cooking, washing, bleaching, evaporation,
recovery boiler, recausticizing and lime kiln had been normally supplied by different process
plant makers.
From the beginning of 21th century, large pulp production mills with more than 1 million
tons/a were built in mainly South America that have required major plant makers to supply morecomprehensive and combined processes on EPC basis. In order to meet the requirements andimprove the total mill efficiency, Andritz has promoted R&D work and developed newtechnologies that improve energy saving, production efficiency, product quality, and increaseenergy generation plus minimizing emissions. These new technologies developed by Andritz are
also useful for the existing mills.

LignoBoost―Further Usage of Lignin from Your Kraft Pulp Mill―
Hiroshi Yamashita
Sales Group 2, Valmet K.K.
LignoBoost enables the kraft pulp mills to have flexible future possibilities about bothprocess and revenue.
The biorefinery has been focused on by several industries because the sustainable material isgetting a key word to develop new processes. Lignin is one of the major compounds of woody
material. Lignin has been used as a fuel for a recovery boiler for long years in kraft pulp mills.
Today another possibility about lignin is now prevailing. Once lignin is extracted to the outsideof recovery process of kraft pulp mills, the mills will get a new opportunity to sell lignin to themarket. It could be replaced the fossil fuel with at a lime kiln or a power plant to save carbon
dioxide emission. In addition, there is further attractive possibility about lignin which is
expected to be a raw material for bio products such as bio plastic, binder, carbon fibers etc.
Those kinds of bio products could be a new revenue for kraft pulp mills.
Commercial scale lignin extraction has just started in the US and Europe. It is expected thatthe speed of development of lignin-based product will be accelerated.

Development of the New Generation Latex that Has Excellent Picking Strength andRunnability for Paper Coating
Takuro Kawaguchi and Masaya Kamo
Latex Research Group, R&D Center, NIPPON A&L INC.
Latex is one of the most important components to control the qualities of coated paper. In theconventional latex, the optimization of quantities and distribution of adhesive component in thelatex particles has been made to improve picking strength and runnability such as removabilityof dried coating color film. However further improvement of picking strength and runnabilityby the conventional way i.e., optimization of adhesive component, is difficult. Therefore, wedeveloped new generation high performance latex that has further improved picking strengthand runnability without depending on the adhesive component. The high performance latex has
excellent picking strength and runnability. Especially its picking strength is 30% stronger thanthat of conventional one. In this paper, we discuss the mechanism of excellent picking strengthof the high performance latex focusing on its film tensile strength and interaction with pigment.
The tensile strength of the high performance latex film is increased significantly than that ofconventional one, so its picking strength would be strong. Besides, in only calcium carbonate
used coating color, the high performance latex shows excellent picking strength. It is consideredthat the high performance latex interacted strongly with calcium carbonate. In addition, thedried coating color film which containing the high performance latex could be easily removed
with water. The high performance latex has a hydrophilic surface, so its film might be easily
washed away.

－Peer Reviewed－
Development of an Excellent Depth Feeling Wallpaper Screen Based on a New Theory of
an Optical Biomimetic Model of Human Skin
Akihiro Kuroda*1,a), Koki Kodama, *2 Hiroki Okuda*1, Chitose Miyama*1 and Shuichi
Maeda*1,2*1 Department of Optical and Imaging Science & Technology, Faculty of Engineering, Tokai
University*2 Course of Electro Photo Optics, Graduate School of Engineering, Tokai Universitya)

Kuroda consulting incorporated
When we consider viewing the surface of human skin, the skin gives us a sense of natural

depth, while, in contrast, the surface of a plastic does not. It is sure that the feeling of natural
depth from human skin does not come from binocular disparity, because we can easily sense thenatural depth of the skin, even when using only one eye. In our research program, learning fromthe structure of human skin, we fabricated screens which consist of multilayers made oftranslucent sheets coated with TiO2 nanoparticles. It seems that these screens appear to exhibit
Mie scattering which has strong backward scattering relative to forward scattering. Therefore,
analogous images can be projected on the screens behind the original images without losing
their clearness. The feeling of natural depth from our screen can be considered to come from themultiply-observed images produced by phase differences due to the translucent multi layers andthe reflection/diffusion differences of light depending on its wavelength. We also discuss thereflection/diffusion properties using color laser and black and color matrixes. Red ray canreflect many times between the multilayers and resolution of the red image become low. Wheninsert a black matrix among the multilayers, the matrix control the optical properties, and theresolution can be improved. Additionally, in the case of our screens, as well as human skin, we
can sense the feeling of depth with one eye. Our screens can be applied to wallpaper or
projection screens for events, since they are simple, energy free, and applicable to large area.

７JAPAN TAPPI JOURNALCONTENTS

July 2016

Vol.７０, No.７

Energy SavingⅡ
１ Successful Reduction of Energy Consumption Rate by４％ for２Consecutive
Years and Future Efforts……Hironori Nishiura
７ Activities for Energy Saving in Ebetsu Mill……Kenichi Hayashi
１
１ New Chemicals for Boiler Water Treatment from the Viewpoint of Energy
Saving……Shintaro Mori
１
６ Energy Saving in Waste Paper Stock Preparation……Mikio Takahashi
Topics & Information

２
０ Improving the Operation of a Continuous Digester Using Model Predictive
Control and First Principle Soft Sensors……Manne Tervaskanto, Rami Rantanen, Greg Fralic, Julien Noirault and Atsushi Yamamoto

２
７ ASA Sizing Technology Based on High Shear Homogenizer System―Combining Chemistry, Equipment and Papermaking to Improve Sizing Performance―……Wahl Alexander and Koichi Tanaka
３
１ Start―up of New LinerBoard Machine……Yukio Gyonouchi

３
５ A New Concept of Wire and Press Section Deposit Control Under Deteriorating
Furnish Condition―Discharge Deposit from Paper Machines by Reducing Its Stickiness―……Tomonori Muroya

４２ Analysis of Distributions of the Paper Chemicals on Paper（Ⅳ）―Visualization Analysis of Polyion Complex Formed by Paper Strengthening Agent and Application for Development―……Kensuke Yutani and Norihito Higashitani

４
７ From the Researches Presented at１８th International Symposium on Wood, Fiber,
Pulping Chemistry（ISWFPC）……Satoko Shimimzu, Akiko Nakagawa―izumi and Yuji MatsumotoResearch Report（Original Paper）

６０ Peroxymonosulfuric Acid Treatment as an Alternative to Ozone for Totally Chlorine―free and Elementary Chlorine―free Bleaching of Hardwoods Prehydrolysis―kraft Pulp……Andri Taufick Rizaluddin, Ayyoub Salaghi, Hiroshi Ohi and Keiichi Nakamata
０
３ Committee report
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Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 July JAPAN TAPPI JOURNAL
Vol.70, No.7 Abstracts

Successful Reduction of Energy Consumption Rate by 4% for 2 Consecutive Years andFuture Efforts
Hironori Nishiura
OTSU PAPER BOARD CO., LTD.
Located on the coast of Lake Biwa in Otsu City in southern Shiga prefecture, Otsu Paper
Board Co., Ltd. has been putting efforts to protect the environment first since it started
operations in 1955, manufacturing and selling environmentally-friendly paperboard(container
board). In January of 2004 it converted its fuel source of a power generation system from fueloil C to city gas, while also adopting a gas turbine co-generation system, achieving a drastic
reduction in environmental burden and energy used. However, with the undeniable upward trend
in fuel costs influenced by geopolitical risks and a weak yen, measures to counter-act risingenergy costs have recently become an urgent administrative issue. In the midst of this, the entire
company came together to work on energy conservation, successfully achieving an energy
consumption rate reduction of 4% for 2 consecutive years from 2013. In this paper, I will
introduce the kind of point of view the company advanced its energy conservation from, citing
examples of improvements.

Activities for Energy Saving in Ebetsu Mill
Kenichi Hayashi
Ebetsu Mill, Oji F-Tex Co., Ltd.
EBETSU mill is working together for energy conservation aiming to“reduce
257L/h(2,100kL/year)in terms of crude oil”in 2015 to achieve environmental objectives forISO14001 of the mill.
However, it is becoming increasingly harder to find new energy-saving projects and plans
through capital investments.
Therefore, we have been conducting a sweeping review and improving of previous efforts,horizontal developments promoting in other mills in Oji group, and operating conditions of ourfacilities for the pulp manufacturing and the paper making processes.
This report introduces several examples showing we have achieved major energy savings as aresult of these efforts.

New Chemicals for Boiler Water Treatment from the Viewpoint of Energy Saving
Shintaro Mori
Kurita Water Industries Ltd.
Chemicals for boiler water treatment are evolved out of a long process of energy saving
requirement. In this paper, two topics which we were concerned to the development are briefly
described.
Low pressure boilers in which feed water are mainly softened water have a problem withmineral scales adhering internally. The scales adversely affect energy efficiency. A scale
remover has been required in addition to conventional chemicals, but if excessive remover isadded, the steel material in the boiler pipe may be damaged. Kurita Water Industries has
invented a multi-purpose chemical preventing scale and corrosion in boilers and removing
scales. It comprises products approved by the United States Food and Drug Administration(FDA) against customers seeking safer and more reassuring boiler water treatment chemicals,such as hospitals and food and beverage factories.
For High pressure boilers which have steam generators, oxygen scavengers, alkalizing aminesand phosphate are used as a conventional treatment programs. In a treatment program based on
film forming amines (FFAs), higher concentration cycles can be achieved, leading to lower
amounts of blow down water and therefore to a significant reduction in energy losses. Recent
lab studies with FFAs have shown that the coefficients of heat transmission from the heatingtubes into the water phase are significantly higher than when phosphate treatment is used. As aconsequence, lower energy losses can be expected. FFAs have been successfully used in realapplications for decades in Europe.

Energy Saving in Waste Paper Stock Preparation
Mikio Takahashi
Akita Mill, Nippon Paper Industries Co., Ltd.
Our stock preparation system has two lines which are No.1 line used 100% JOCC and No.3

line used JOCC and mixed waste paper. Today, we produce about 80% of recycled pulp for liner
board machine. No.3 line was installed in 1991. In this time, we have updated the pulper whichis responsible for a part of the screening process. And then we are able to aggregate the screen
system in order to reduce the power consumption.

Improving the Operation of a Continuous Digester Using Model Predictive Control andFirst Principle Soft Sensors
Manne Tervaskanto and Rami Rantanen
Valmet Automation Inc. Lentokentänkatu 11, Tampere, Finland
Greg Fralic
Valmet Ltd, 8161 Keele Street, Vaughan, Ontario, Canada
Julien Noirault
Smurfit Kappa Cellulose du Pin, France
Atsushi Yamamoto
Valmet Automation K.K., Japan
Continuous cooking is a complex process by its nature. It consists of numerous process
stages, with long residence times, and strong interdependencies between process stages andvariables. Many of the essential process variables are difficult or impossible to measure,including the characteristics of the raw material and the state of delignification along theprocess line. It is possible that poorly designed and tuned local feedback control could evenincrease the variance in the quality variables in the pulping line.
This paper introduces Model Predictive Control (MPC) based continuous cooking APC
solution which includes impregnation vessel and digester liquor and chip level controls, alkali
to wood ratio controls and kappa number controls. Advanced predictive first principle based
kappa number soft sensors are introduced and implemented into to quality control scheme.
Reported results include increased stability of the cooking process, resulting over 35%
reduction in the kappa variability coefficient, enabling a kappa target increase and significant
cost savings.

ASA Sizing Technology Based on High Shear Homogenizer System―Combining Chemistry, Equipment and Papermaking to Improve Sizing Performance―
Wahl AlexanderPaper, Kemira Chemie Ges.mb
Koichi Tanaka
Kemira Japan Co., Ltd.
As with most processes in the paper industry, ASA performance is dependent not only on thechemistry of the product but also relies on robust equipment to develop the full
performance of the additive

potential ofand applications expertise to minimize the unwanted

interactions and accentuate the positive effects.

Kemira has designed and manufactured

Fennosize AS 1-series ASA, to meet the sizing needs of the paper industry exclusively. We
developed and patented the manufacturing process to make this molecule with as little residual
olefin and oligomeric material as possible. A more robust emulsifying system was necessary to
fully develop the sizing performance build into the products. On our way we were able to assessother key factors related to the papermaking process that would have a beneficial or negative
effect on product performance. Finally, we applied our global sales, application, and R&Dexpertise making the Fennosize AS 1-series sizing program the best possible program for ourcustomers. The details of the Chemistry, Application Knowledge and Service are discussed indetail in the following paper.

Start-up of New LinerBoard Machine
Yukio Gyonouchi
VOITH IHI Paper Technology
Marusan Paper PM8, the new linerboard machine started its operation in Dec, 2014, suppliedby VOITH IHI Paper Technology. This project is a full turnkey basis including engineering,procurements, construction works, and commissioning, and the scope of delivery are the paper
machine, approach flow system, broke handling system, fiber recovery system, finishingmachine, field instrumentation, control system such as MCS, DCS, QCS, drive system as wellas control system for paper properties in cross direction, additionally all the auxiliary facilities
including the overhead crane. In the construction period, temporary storage or space fortransport was very limited due to the mill location also due to overlapping the disasterreconstruction projects in the vicinity, and this occurs changes the traffic every day. Therefore
the transport unloading and installation work were always in on-time, which is aimed at thedelivery and installation timing in accordance with the progress of construction work. Risk
management of the installation/construction period delay and safety management was carriedout by our construction work on the basis of a number of experiences and references of the past.

The project management of IHI and VOITH IHI ensured the quality, the delivery time, and thethoroughness and the safety, furthermore the success of the scheduled start-up. This paper
introduces the outline of project including installation and start-up phase, as well as the
specification of PM8.

A New Concept of Wire and Press Section Deposit Control under Deteriorating Furnish
Condition―Discharge Deposit from Paper Machines by Reducing Its Stickiness―Tomonori Muroya
Chemicals Development Team, Maintech Paper Tech Co., Ltd.
As the recycled pulp in the furnish is increased, the amount and kinds of adhesive deposit isalso increased in the system. Particularly, the adhesive deposits lead to serious problems in
paper-making machine which cause sheet breaks or defects in a finished paper.
This report introduces the details of a New Concept “Pitch guard” developed by ourcompany, and examples applied in the paper machines are also presented.

Analysis of Distributions of the Paper Chemicals on Paper(Ⅳ)―Visualization Analysis of Polyion Complex Formed by Paper Strengthening Agent andApplication for Development―
Kensuke Yutani and Norihito Higashitani
Research and Development Department, Paper Chemicals Division, Arakawa Chemical
Industries, Ltd.
In recent years, there is a growing demand for paper chemicals to show higher performancefor the following reasons. Firstly, pulp fiber quality is becoming worse due to an increasing
recycling rate of used paper. Secondly, as the consumption of fresh water being restricted, theelectrical conductivity (EC) of water becomes higher in paper making process. We aim todevelop new paper chemicals, which is optimized for the above change of the wet-end
condition.
Visualization analysis of Polyion complex (PIC), which is formed by Amphoteric
Polyacrylamide (PAM) based paper strengthening agents, has been investigated by Scanning
Probe Microscope (SPM). Using an advanced SPM measurement, clear image of PIC whichretains on the pulp fiber in aqueous solution was achieved. It was also found that fixation stateand floc size of PIC was dependent upon wet-end condition. The increase of EC prevents PIC
formation and thus decreasing PIC size. Therefore we have designed a novel paper
strengthening agent, which can make larger size of PIC under high conductivity. This new agent
gave higher dry-strength of paper than conventional one.

From the Researches Presented at 18th International Symposium on Wood, Fiber,
Pulping Chemistry (ISWFPC)
Satoko Shimimzu1), Akiko Nakagawa-izumi2) and Yuji Matsumoto1)
1)

Graduate School of Agricultural and Life Sciences, The University of Tokyo

2)

Graduate School of Life and Environmental Sciences, University of Tsukuba
The 18th International Symposium on Wood, Fiber and Pulping Chemistry was held at BOKU

university (Vienna, Austria) in September, 2015. Totally about 220 researches were presented(oral 90, poster 130). Presented researches covered wide range of chemistry related to wood lignin, nanofiber, biorefinery, bioenergy, biomaterial, pulping, bleaching, cellulose, paper, andothers. In this article, 86 presentations will be briefly reviewed.

－Peer Reviewed－
Peroxymonosulfuric Acid Treatment as an Alternative to Ozone for Totally Chlorine-freeand Elementary Chlorine-free Bleaching of Hardwoods Prehydrolysis-kraft Pulp
Andri Taufick Rizaluddin, Ayyoub Salaghi and Hiroshi Ohi
Graduate School of Life and Environmental Sciences, University of Tsukuba
Keiichi Nakamata
Technical and Development Division, Hokuetsu Kishu Paper Co., Ltd.
This study is focused on improving totally chlorine-free (TCF) and elementary chlorine-free(ECF) bleaching by using peroxymonosulfuric acid (Psa) instead of ozone (Z). Bleaching was
conducted by a combination of oxygen (O) with Psa, followed by alkali extraction withhydrogen peroxide (Ep) and chlorine dioxide (D) stages in accordance with proposed sequences
O-Psa-Ep-Psa-Ep and O-Psa-Ep-D. Increments in pulp consistency during the O stage and an
addition of MgSO4 during the Ep stage were performed to improve pulp brightness and viscosity.

The O-Psa-Ep-Psa-Ep sequence was compared with the O-Psa-Z-Ep sequence, and 87.3-88.3% ISO
brightness was achieved by TCF bleaching corresponding to the O-Psa-Ep-Psa-Ep sequence.
However, the viscosity obtained after the final stage of the TCF bleaching was 5.1-6.0 cP, while
the O-Psa-Z-Ep sequence resulted in an 83.1% ISO brightness and viscosity of 5.4 cP. It wasdifficult to reach brightness above 88% ISO with viscosities greater than 6.2 cP, which are theminimum standard levels for dissolving pulp, using the TCF bleaching sequence. Further studies
with better qualities of raw materials are required to investigate this possibility. Meanwhile,brightness 88.1% ISO and viscosity 7.3 cP were achieved by the ECF bleaching corresponding
to the O-Psa-Ep-D sequence with only a 0.5% ClO2 dosage, which suggests a potential reductionin the usage of chlorine-containing chemicals during the ECF bleaching.

JAPAN TAPPI JOURNALCONTENTS

８

August 2016

Vol.７０, No.８

Pulp
１ Report of２２nd Pulping Seminar……Pulp Technical Committee, JAPAN TAPPI
３ Basic Principles of Wood Chemistry and Proposal for Future Research……Gyosuke Meshitsuka

８ History of Continuous Cooking Technology and State―of―the―Art Development
by Andritz……Kanji Hagiwara
２
１ Development of Continuous Digester, Washing and Bleaching Equipment……Yan Ju２
６ Introduction of Advanced Process Control（APC）on the Kraft Pulp Bleaching
Process……Mitsuru Takatsuji
３０ Current Situation and Problem of Japanese―Style Paper Recycling……Shigenori Kimura

３
６ DIP Technologies for Lower Grade Raw Material……Nobuhiko Okumura
４
２ Development of Catalyzer Type De―Inking Agent―Development of the De―Inking Agent for UV Curable Inks―……Takashi Tanaka, Takeshi Yoshida and Haruhiko Toyohara

５０ Basic Technologies of Pitch Control and New Developments―NISSIN―Pitch Control Method―……Hidekazu Tada

５
５ Basic Lecture and Recent Development of Scale Control Technologies in Pulp
Making Process……Takao Noguchi
６０ Biomass Researches in the FFPRI……Tsutomu Ikeda
６
３ Possibilities and limits of Wood Resources as Energy Sources……Keiichi Nakamata

６
６ Operational Experience by Modifying Kraft Pulp Production……Kenji Matsushima

７
０ Practices for Specific Energy Reduction in TMP Process……Masaru Shinya
Introduction of Research Laboratories
（１
１
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４ Laboratory of Biochemistry, Department of Applied Life Sciences, Facultyof Agriculture, Shizuoka University
Research Report（Original Paper）

７
８ Characterization of Compressive Strength for Containerboard Using Short―Span
Test……Hironobu Hirano and Takao Kobayashi
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Committee report
Essay on Intellectual Property
Coffee break
Papyrus

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Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 August JAPAN TAPPI JOURNAL
Vol.70, No.8 Abstracts

Basic Principles of Wood Chemistry and Proposal for Future Research
Gyosuke Meshitsuka
Professor Emeritus, The University of Tokyo
In this paper, the basic principles of wood chemistry were briefly described with some
proposals for the future research. Wood chemistry basically deals with a part of living tree aswood samples, not with wood chips of the raw material of the industry. It is important to notethat each tree may have different characteristics dependent on the environmental conditions, inwhich the tree has grown up, even in the same species. This is one of the reasons why the mostcareful sample preparation is needed for the reliable discussion.
As far as the topics for the future research of wood chemistry, bio-ethanol production fromsoftwood chips, advanced utilization of lignin, and new chemical pulping method were raised.

History of Continuous Cooking Technology and State-of-the-Art Development by Andritz
Kanji Hagiwara
Andritz K.K.
Kamyr continuous digester was invented and developed by Johan Richter during 1940’s. The
first commercial digester was started up in Fengersfors in Sweden in 1950, of which capacity
was only 50 tons/day. In 1953, the first continuous digester in Japan started up at Oji Paper
Kasugai mill. Then, more than 50 digesters have been installed in japan and probably more than
500 digesters are introduced globally to date. The original technology concept invented by
Johan Richter has been further evolved continuously. Today the single vessel digester system
has been developed capable of producing more than 5000 tons a day. This paper summarizes
major development history of continuous cooking system.

Development of Continuous Digester, Washing and Bleaching Equipment

Yan Ju
Pulp and Energy Projects, Valmet K.K.
The technologies for making kraft pulp were progressed together with development of thecontinuous digester, the washing machines, and the equipment for bleaching plant, etc.. The
latest kraft pulping plant for hardwood which developed by Valmet normally contents
COMPACT COOKINGTM system, a number of TwinRollTM presses as washing machine, an
extend oxygen delignification system (OxyTracTM), and a high consistency ozone bleachingsystem(ZeTracTM) etc.. On the other hand, most of the kraft pulping plants in Japan were built
before 1990. It is a great challenge to increase the efficiency of these mills in order to becompetitive to the latest kraft pulping plant. And it is a good way to take the latest technologies
or the concept into the existing plant in order to optimize the system further.

Introduction of Advanced Process Control (APC) on the Kraft Pulp Bleaching Process
Mitsuru Takatsuji
Akita Mill, Nippon Paper Industries Co., Ltd.
At Akita mill, fuel cost reduction in the kiln process has been achieved by use of oil cokesthat started in 2013, there is more room for the energy saving because the operation of the kiln
still depends on the experience of the operator. Also in the bleaching process, there is room forchemical saving because the process is always operated conservatively to keep the final
brightness in the upper part of target range. For the above reasons, we introduced processoptimization system to both the kiln and bleaching process in expectations of steady operationand cost reduction. Now, we are working on an early realization of the process improvement.
In this report, the background of the introduction of the system and future effort are explained.
Although this system has many installation records overseas, it is first installation in Japan.

Current Situation and Problem of Japanese-Style Paper Recycling
Shigenori Kimura
Paper Recycling Promotion CenterIn this article Japan's current situations of collection, distribution, and utilization of therecovered paper as well as the system and characteristics of Japanese-style paper recycling areintroduced. The high utilization rate of recovered paper in Japan has been supported by thisJapanese-style paper recycling, that is the securement of cheap and high quality recovered
paper.
Next the influence of the consumption decrease in the newsprint and the printing andcommunication paper in progress and globalization of the recovered paper to the supply-demandbalance in the world and Japan is analyzed. Then problems and corresponding direction(reinforcement for recycling) of the utilization of the recovered paper in each product category
are reviewed.

DIP Technologies for Lower Grade Raw Material
Nobuhiko Okumura
Technical Department, AIKAWA Iron Works Co., Ltd.
Recently, the positive signs are little by little seen in the domestic economy. However,
because of the consideration of the environmental protection and the influence ofwell-developed digital devices, paper consumption has been kept still with a lower level.
Furthermore, exporting of the recycled paper to China has kept still a higher level, even though
the Chinese economy development shows a slowdown. With this background, it becomes more
and more difficult to get the better quality recycled paper in the domestic market. On the other
hand, in order to adapt the lower basis weight production as well as the higher speed paper
machine, the quality standard of the DIP line can be more demanding.
Under these circumstances, the domestic paper manufacturing field now needs more andmore the suitable technologies and facilities that can improve the quality with the minimum
energy consumption, keeping the reasonable yield with using the lower grade recycled paper. In
this section, we would like to introduce the basic technologies and the latest challenges for
major equipment of DIP line.

Development of“Catalyzer Type De-Inking Agent”―Development of the De-Inking Agent for UV Curable Inks―
Takashi Tanaka, Takeshi Yoshida and Haruhiko Toyohara
R＆D Department, Specialty Chemicals Division, NICCA CHEMICAL CO., LTD.
Recycling of waste paper is an important issue for environmental protection. As the paperindustry is committed to improve the utilization rate of waste paper, more and more therecovery of pulp from low grade waste paper is required to consider.
In comparison with normal printing inks, UV curable inks give strong fixed film which is
hard to miniaturize in the de-inking process even at higher process temperature due to its highmelting point. As a result, UV curable inks are hardly removed during flotation process because
the ink particles are unable to floated by adsorbing on bubbles. Therefore the paper industry isfacing serious quality problems of de-inking papers like big residual ink spots.
To avoid such unfavorable problems, printed materials with UV curable inks iscontraindicated at waste paper recycling plants who are struggling to conduct the selection ofwaste paper. In such situation, the development of more powerful and superior de-inking agent
and de-inking process for UV curable inks printed waste paper has been demanded. Therefore
we have developed the world first “Catalyzer type de-inking agent” by which UV curable inks
can be decomposed and miniaturized, by adopting new approach to combine surface science andcatalysis science.

Basic Technologies of Pitch Control and New Developments―NISSIN-Pitch Control Method―
Hidekazu Tada
Research＆Development Dept., Nissin Kagaku Kenkyusho Co., Ltd.
Recently, the quality of the wastepaper is lower than before, because the good wastepaper
circulation volume shrinkage by influence of progress of information digitalization, and theother hand, improvement of paper quality and weight saving are desired from paper and board
user, therefore deposit trouble is one of a serious problem for

papermaking engineers.

The pitch included in the wastepaper will be adhered at various papermaking process, and thedeposit causes web-breaks and defects. Therefore taking measures to the pitch in the pulping
process is one of the methods to resolve a pitch problem fundamentally.
This report describes an important factor of pitch troubleshooting and introduces the primary
and the newest pitch control technology.

Basic Lecture and Recent Development of Scale Control Technologies in Pulp Making
Process
Takao Noguchi

Technical Group , Yokkaichi Laboratory , Chemical Business DIV. , Hakuto Co., Ltd.
Slightly soluble deposits called “SCALE” are experienced in pulp and paper industry which
use plenty of water. Although this “SCALE” problem occurs in every process, “SCALE” isespecially easy to form in kraft pulp making process due to its water quality, pH, andtemperature.
If “SCALE” foams in process, it affects bad influences like bad heating performance indigester and bad washing performance in washer. Therefore, “SCALE CONTROL” is very
important issue.
In this paper, we show the characteristics of scale deposits, the mechanism of their formation,and scale control technologies.
In addition, we introduce the next generation digester scale control agents “DEPONAX
P-78” .

Biomass Researches in the FFPRI
Tsutomu Ikeda
Wood Chemistry Laboratory, Forestry and forest products research institute (FFPRI)
In this seminar, recent project studies on the biorefinery are mentioned. Cellulose nanofiber(CNF) is one of the hottest studies in biorefinary. CNF and lignin bench scale plant wereconstructed in FFPRI respectively. CNF from woody biomass is produced using alkali cooking
technology followed by physical and enzymatic treatment. Lignin from sugi is produced by newtechnology. The lignin can be used in fabrication of nanocomposite films, sealing materials andautomotive components.

Possibilities and Limits of Wood Resources as Energy Sources
Keiichi Nakamata
Environmental Management Dept., Hokuetsu Kishu Paper Co., Ltd.
The biomass power plants based on the FIT (Feed-in Tariffs) system are under operation andmany projects are scheduled to start operation in Japan. Although this has the power torevitalization of the Japanese forestry business, overemphasis of the fuel use might inhibit thesound growth of the forest industry. For the fuel utilization of wood resources, it should beconsidered that the amount of usable woods, the efficiency of the power generation, andworking conditions of forest workers.

Operational Experience by Modifying Kraft Pulp Production
Kenji Matsushima
Kraft Pulp Div., Mishima Mill, Daio Paper Corporation
Fiber lines in Mishima mill have been modified and extended step by step along with new
installations of paper machines. The total energy cost was pushed up due to increased number of
equipment and distance of pulp traffic line.
Two of softwood fiber lines were unified to one. Hardwood fiber line was also retrofitted toget more production and to reduce energy. We decided to modify our softwood fiber line to get
more production and energy efficiency improvement, making the most of equipment that had
been idle after the retrofit of hardwood fiber line to reduce capital investment. After thismodification, the production has been increased from 650 t/day to 950 t/day, which is thehighest in Japan.
Our concept of the modification of new softwood fiber line was as follows;・ Operational improvement by modifying the existing cooking system
・ Improvement of energy efficiency by enhancing the much more heat recovery
・ Reduction of bleaching chemicals by the improvement of washing performance
・ Upsizing the equipment by using larger one that had been idle
To increase the production rate, continuous digester has been modified to the Compact
Cooking G1TM, which could accelerate the downflow of the chip column in the digester, andthe capacity of screening and bleaching process has been upgraded.
We stabilized the operation by adjusting multi charges feeding ratio of white liquor,liquor-to-wood ratio and chip compaction in digester.

Practices for Specific Energy Reduction in TMP Process
Masaru Shinya
Tomakomai Mill，Oji Paper Co.，Ltd.
In 1970's the strength on newsprint paper manufactured in Tomakomai mill, Oji Paper Co.,
Ltd. depended mainly on mechanical pulp such as TMP（thermo-mechanical pulp）.

TMP contributed greatly to lighter grade of newsprint paper through established production
system; however, the required pulp quality as well as production ratio has become lessdependent on TMP after KP plant started and the production of DIP(deinked pulp) has been
increasing along with the rise in environmental awareness.
Once oil-saving production system was implemented in 2008 at Tomakomai due to higher
fuel price, we needed to improve operating conditions such as refining system or new type ofrefiner plates to reduce energy cost in TMP accompanied with high energy consumption.
In a series of several practices, we have continued to optimize conditions and introduce newtechnology while carefully considering required pulp quality, and finally achieved 30% specificenergy reduction in the refiner process of TMP production.

－Peer Reviewed－
Characterization of Compressive Strength for Containerboard Using Short-Span Test
Hironobu Hirano and Takao Kobayashi
Pulp and Paper Innovation Center, Oji Holdings Corporation
Recent decrease in basis weight of containerboard raises some quality problems, one ofwhich is decrease in ring crush compressive strength in spite of adding enough dry strength
additives. As a result, this can lead to an error in calculating box compressive strength using
Kellicutt’s equation. In this paper, short-span test, which is widely recognized as the superior
compression test to ring crush test, is reviewed from the analytical point of view as follows.
FEM simulation showed that ring crush compressive strength decreases with lower thickness
due to buckling of the specimen, and that when thickness is extremely low, significant strength
loss is caused by the buckling mode change.
Correlation between box and containerboard compressive strength suggested that short-span
compressive strength could estimate the box compressive strength with more accuracy.

JAPAN TAPPI JOURNAL

９

September 2016

CONTENTS

Vol.７０, No.９

Papermaking TechnologyⅠ
１ Report of２１st Papermaking Technical Seminar……Papermaking Technology Committee, JAPAN TAPPI

３ The Effects of Dryer Fabrics for Paper Drying……Ryouji Kawano
１
１ Energy Saving in the Steam & Condensate System……Hitoshi Terashima
１
６ The Case of Energy Saving by Installing Exhaust Heat Recovery System at the
Dryer Hood……Yoshinobu Kudo
２０ Doctor Systems & Canvas Cleaner―Case Studies of Deposit Removal Facilities on Dry Part―……Chihiro Murayama

２
６ Solution for Sheet Breaks and Paper Defects Using Drypart Passivation
Technology ……Daisuke Kobayashi
３２ Trends and Recent Technologies of Sizer and Dryer Sections……Toru Takahashi
４０ Operation Experience of PM８―New Liner Machine―……Masayuki Masuyama
Topics & Information

４４ Energy Saving by Introduction of GHC２Rotor in OCC Process……Takanori Idogawa
Technical Report（Original Paper）

４
９ Development of New BM Sensor System without Radiation……Shinichi Nagata, Hidetada Sawamoto, Toshie Sakamaki and Takako Morikawa

６
６ ６
９th JAPAN TAPPI General Meeting０
３ Committee report
４
８ Coffee break
９
２ Papyrus
９
６
１
０
０
１
０
１
１
１
１
１
１
２
１
１
４

Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 September JAPAN TAPPI JOURNAL
Vol.70, No.9 Abstracts

The Effects of Dryer Fabrics for Paper Drying
Ryouji Kawano
Shikishima Canvas Co., Ltd.
Dryer section is a part consuming the highest energy in the paper machine. In these days, it isrequired in dryer section to reduce steam consumption with increasing thermal efficiency ratio
and also electric energy consumption for driving cylinder dryer and blower fan in theenvironment and cost point of view. The main task of dryer fabric is to promote paper drying
by pressing wet paper with cylinder dryers heated by steam; that is to say, we can say that dryer
fabric is quite important tool which is directly related to energy efficiency of paper machine.
Therefore, it is very important to understand the relationship between paper drying section, thechange of dryer section history, dryer fabrics and its mechanism on paper drying process.
Dryer fabric composed by cotton has been used in dryer section until 1970’s, and, afterwards
the raw materials was changed from cotton to synthetic fiber. By using the synthetic dryer fabric,
we could be provided a better dryness significantly. Because it became possible to have a higher
fabric tension load by synthetic fiber. Additionally, synthetic dryer fabric has a higher
air-permeability character which can bring a better ventilation of air-moist in dryer pocket, andit also promotes a better evaporation from wet paper.
However unknown factors are still exiting in relation between drying efficiently and dryer
fabric. Therefore we are trying to figure it out what the interactive relationship between drying
efficiency and the fabric surface,-internal weaving structure is. Anyway, we will continue
researching them intensively and in near future, we would like to contribute on the developmentof paper industry.

Energy Saving in the Steam & Condensate System
Hitoshi Terashima
Motoyama Shinkoh Co., Ltd.
Compared to the original operating conditions for a paper machine, almost all current

operating conditions, such as paper weight and speed, have changed.
Saving energy may be possible by investigating and examining whether or not the drainage
system has kept up with these changes.
By changing the drainage system to match the paper being made, there should be many casesthat can expect improvements in quality and efficiency as well as realizing steam savings.
Here we report on what can be done from now on for the possibility of saving energy
considering the drainage system, within recent significant improvements in drying efficiency
through sealed hoods, air supply and exhaust, heat recovery system, etc.

The Case of Energy Saving by Installing Exhaust Heat Recovery System at the Dryer
Hood
Yoshinobu Kudo
Osaka Mill, Oji Materia Co., Ltd.
The dryer section accounts for a high percentage of energy consumption in papermaking
process, therefore energy saving at the dryer section is one of the crucial issues in the papermill.
The dryer hood system in Osaka PM2 has some problems such as low efficiency of the air
supply/exhaust equipment, air leak and heat loss, insufficient intake and exhaust flow ratiolow
dew point.
In addition, we have a problem with significant energy loss by hot exhaust air from dryer
hood.
This paper reports the outline of modification of the dryer hood system by installing the heatrecovery system and describes the reduction of steam consumption after we installed andoptimized it based on process investigations.

Doctor Systems & Canvas Cleaner― Case Studies of Deposit Removal Facilities on Dry Part ―Chihiro Murayama
Technical Sales Department, AIKAWA Iron Works Co., Ltd.
By recent badly quality of recycling paper, the difficulties of impurity removal at paper stock
preparation stages are underscored year by year. As the result, the fine impurities reached topaper machine side are increasing, they have chances to deposit everywhere, and bring dirt
troubles. Because cleaning up the deposit by hands requires long time and hard tasks with thepaper productivity drastic reduction, its improvement would be one of the most important
subjects for paper making. We introduce our newest profitable doctors and cleaners for paper
machines to improve this big problem.

Solution for Sheet Breaks and Paper Defects Using “ Dry part Passivation Technology ”
Daisuke Kobayashi
Sales Engineering Division, Maintech Co., Ltd．
In recent years, a paper recycling rate in Japan marked 64% in 2015, in response to a higher
interest in a recycling society and environmental sustainability. By reuse of old papers, adhesive
substances derived from adhesive tapes and labels contained in old papers stick to a paper
machine, which causes sheet breaks and defects, and it finally lowers production efficiency.
Especially in a making of linerboard and corrugating medium which use more than 90%
recycled paper, sticky deposits problem in a dryer part becomes remarkably serious, and whichis the most common cause of sheet breaks and paper defects.

Trends and Recent Technologies of Sizer and Dryer Sections
Toru Takahashi
Paper Projects, Valmet K.K.
In this paper, the author briefly describes the developments of sizer and dryer parts of paper
machine.
First, the technical development of sizers is described, starting with pond sizers, thenfollowed by gate-roll sizers and ending up with rod-metering sizers and spray sizer. As thesizer-related effective equipments, FoilForce1 which enables to execute successful tail threading
quickly without any mistake, and iRoll which enables to measure nip load profile and rod load
profile in real time during operation, are introduced.
Second, the technical development of dryers are described. At present, single tier type can beseen in high speed papermachines.

Runnability improvement systems such as HiRun blow

boxes are required to achieve stable operation at high machine efficiency with reduced draw andgood paper qualities.

An innovative dryer, OptiDry impingement dryer is also introduced,

which makes it possible to evaporate water with high efficiency by direct impingement ofheated air against the web.

Operation Experience of PM8― New Liner Machine ―Masayuki Masuyama
MARUSAN PAPER MFG. CO., LTD.
Marusan Paper PM 8 started the trial operation from December 26, 2014, and has produced
commercial paper since January 26, 2015. In February of the year, we achieve 500 t/day.
Currently extracts various problem towards the stable operation, it is the stage which is carriedout operation while solved.
PM 8, corresponding to the thin of containerboard growing from the environmental aspects of
the needs was built the quality, productivity and cost competitiveness in the concept, was built
as a round paper machine PM 6 of S&B.
In this paper, we describe paper machine equipment overview､and the elapsed operating
experience about 1.5 years from the start of the commercial operations.

Energy Saving by Introduction of GHC 2 Rotor in OCC Process
Takanori Idogawa
Yodogawa Mill, Rengo Co., Ltd.
Rengo has formulated the “Eco Challenge 020” which has been set internal action plan forenvironmental impact reduction. We set up medium-term target in 2020 of reduction in CO2emissions by 32% compared with 1990 and have worked for the achievement of it.
This report shows our energy conservation experience in Yodogawa mill with GHC 2 rotor,
the latest energy-saving design in Aikawa, in OCC coarse screening process.

－Peer Reviewed－
Development of New BM Sensor System without Radiation

Shinichi Nagata, Hidetada Sawamoto, Toshie Sakamaki and Takako Morikawa
Pulp and Paper Innovation Center, Oji Holdings Corporation
In paper industries, the measurement of basis weight and moisture ratio of the paper sheets isvery important for not only quality control but also trading on commercial. Typical BM sensor
systems have been using the infrared for the moisture ratio and the radiation for the basis weight
for about 40 years. But it is said that the radiation has bad influence on human body. On theother hand, we had developed an on-line fiber orientation sensor system and an on-line moisturesensor system using microwaves. The fiber orientation sensor is based on the anisotropy ofdielectric constant of the paper sheet and the moisture sensor is based on the dielectric loss ofthe paper sheet. When we were developing the fiber orientation sensor, we notified that it might
be able to measure not only the fiber orientation but also the basis weight from the resonant
frequency shift based on the dielectric constant of the paper sheet. So we started to examine thepossibility of BM measurement of our sensor head. As a result, we found the unique method formeasuring the basis weight and the moisture ratio by combining the fiber orientation sensor
technology and the moisture sensor technology. As we examined the capability of the new
method for BM measurement by using the prototype on an actual machine with comparing thetypical BM sensor system, we would like to report the results and the measurement principle.

JAPAN TAPPI JOURNAL １０
October 2016

Vol.７０, No.１０

CONTENTS
Papermaking TechnologyⅡ

１ Latest Technology of Polyurethane Cover High―Top Roll for Applicator Rolls……Hiroya Shimazaki

６ The Changing and Recent Development of Surface Treating Chemicals……Masaki Watanabe

１
３
２
０
２
３
２
７

History and Trends for Calendering and Reeling Technology……Eiji Ando
Advanced Technology of Web Inspection System……Satoshi Suzuki
Technology and Vision of QCS……Ken―ichiro Wada
Operating Experience of Replacing Inspection and Slit Aiding Systems on PM１
and PM３……Chiharu Fukuda

Topics & Information

３
３ Stabilization of Coating and Improvement of Roll Maintenance by Rubber Coverfor Applicator Roll……Shigetada Kadomatsu
３
８ Fully Sprit Seal for Accurate Rotation―Application to the Vertical Rotating Equipment―……Takashi Kamizono

４５ Some Preventive Methods against Erosive Wear in Fluidized Bed Boiler……Tadashi Kimura and Yoichi Shiraishi

５０ Wet End Improvement Method by Correlation Analysis between Water Quality
and Machine Operation by S.sensing……Hiroki Katsura, Takashi Saigusa, Katsuhiko Hidaka, Kaname Harada andShinichi Kurihara

５
５ Novel Dissolved Lignin Carryover Measurement in O２ and D０ Stages Brings
Opportunities for Significant Improvements in Fiberline Operations!

……Niclas Andersson, Akhlesh Mathur, Caroline Wilke, Ulf Germgard andMasashi Hasegawa
６
２ Corporate Profile & Product Information Ö

AQUAS CORPORATION
Introduction of Research Laboratories
（１
１
３）

６
８ Kochi Prefectural Paper Technology Center
Research Report（Original Paper）

７
１ Improvement of Air Filters by Nanocelluloses………Junji Nemoto, Toshihiko Soyama, Tsuguyuki Saito and Akira Isogai
Review Article（Original Paper）

８
５ Technological Transition of Web Inspection System………Tadashi Tomomura
０
３
６
７
７
０
９
６

Committee report
Essay on Intellectual Property
Coffee break
Papyrus

１
０
２
１
０
６
１
０
８
１
１
９
１
２
０
１
２
２

Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 October JAPAN TAPPI JOURNAL
Vol.70, No.10 Abstracts

Latest Technology of Polyurethane Cover "High-Top Roll" for Applicator Rolls
Hiroya Shimazaki
YAMAUCHI CORP.
One of our products, High Top Roll, which is polyurethane roll cover, has been used for pressrolls, suction rolls?and applicator rolls since it was first developed in 1963 and keeping the top
market share in the domestic market.
We also introduced High Top SD series in 2010, which is specialized for applicator rolls andmore than 200 rolls have been delivered so far.
Furthermore, we have developed as an innovator High Top L series in 2015, which
implemented completely new cover structure thanks to our original hybrid bonding system, andit has enabled to eliminate the under layer which has been considered essential not only forpolyurethane, but also for any kind of roll covers. We also confirmed that High Top L series iseffective against blister- delamination which could not been solved by the conventional
polyurethane covers.
In this report, we introduce the technical overview of L series and the superiority as theapplicator roll cover.

The Changing and Recent Development of Surface Treating Chemicals
Masaki Watanabe
PAPER CHEMICALS RESEARCH & DEVELOPMENT H.Q., ARAKAWA CHEMICALINDUSTRIES, LTD.
Paper chemicals, which can help provide stable paper products with a reasonable price, havebecome more desired in paper industry. Besides, along with the diversifying paper printing
techniques, a sufficient paper quality has become significant to meet the highly developed
printing techniques. In this report, surface sizing agents and surface strengthen agents of paper
have been mainly described.
Concerning Surface sizes, a brief changing in development, which dates back from watersoluble type agent that is styrene-maleic acid copolymer to emulsion type agents, has been
introduced. In addition, a newly developed emulsion type surface sizing agent with a special
type of surfactant is explained. It can well disperse into paper sheet when coated onto thesurface.
About surface strengthen agent, starch solution has been mainly used, while polyvinylalcohol(PVA) and polyacrylamide (PAM) can still occupy a share. However, the demand of thinner
paperboard grows, thus the low strength problem has emerged in recent paper industry. A newly
developed PAM-type surface strengthen agent with high water-soluble moieties, which caneasily immerge into paper sheet, is described in this report.

History and Trends for Calendering and Reeling Technology
Eiji Ando
Coating and finishing Eng. Dept., Voith IHI paper Technology Co., Ltd.
The calendering process is to make a certain density of the paper web by means of press rolls,
as a result, the web gets smoothness, gloss and required thickness. There were simply divided
into two kinds in different calendaring methods, but nowadays both calenders are harmonized ormore subdivided with new technologies. After the calendering process, the paper web is finallywound up on the tambour reel in order to proceed further processes like coating, slitting to smallrolls and cutting to sheets. It requires preventing a damage of surface quality and reliable
turn-up function. The article describes history, requirements, and some epoch-making topics forthe development of each process. There are some interesting innovations, however, predecessor
ideas are still attracted and also reminded.

Advanced Technology of Web Inspection System
Satoshi Suzuki
SurfaceVision, AMETEK Co., Ltd.
AMETEK SurfaceVision, former COGNEX Surface Inspection System Division, developed“SmartView 7.2 Color” inspection system which allows users to see “color defect image” and toclassify defects by “color defect features”. I would like to introduce new inspection technologies
with color camera and 2 scalable technologies, “Line synchronization” (accurate data tracking
between upstream and downstream) and “SmartSystem” (monitoring cameras linking toinspection system for root-cause analysis).

Technology and Vision of QCS
Ken-ichiro Wada
IA Platform Business Headquarters, Yokogawa Electric Corporation
A scanner equipped with basis weight sensor and moisture rate sensor was developed in the
USA in 1960s. For the Japanese market, Yokogawa has developed it in 1969. It has been
introduced to many paper mills for more than half a century.
Here we review firstly the basic technology of QCS, particularly focusing on the devisal forthe purpose of on-line measurement. As an example, the technology used for LED color sensor
will be reviewed. Secondly, we review how profile data is processed. In closing, we envision
future possibility of QCS.

Operating Experience of Replacing Inspection and Slit Aiding Systems on PM1 and PM3
Chiharu Fukuda
Hokkaido Mill, Asahikawa Factory, Nippon Paper Industries Co., Ltd.
Since quality improvement and complaint reduction are of constant concern to workers in the
manufacturing industries, we strive every day to provide good products for customers.
The previous inspection Systems on PM1 and PM3 in Nippon Paper Industries’ Iwanuma
Mill were installed in 1997 and offered inspection only by transmitted light. However, as
customers became more concerned about defects, it became more and more necessary to havethe ability to detect weak contrast defects or surface located defects.
In order to measure this type of defect, we replaced the previous inspection systems with new
one which has both transmitted and reflected light inspections in 2013 and 2015. In addition, we
also installed Slit Aiding Systems which convert the defect location information from parent rollto finished roll. Immediately after the replacements, there were few occasions where we wereunable to distinguish between holes and transparently unevenness, or to inspect wrinkling.
As a result, the inspection systems became excellent tools not only for judging acceptabilityof products, but also for finding operational problems.

Stabilization of Coating and Improvement of Roll Maintenance by Rubber Cover for
Applicator Roll
Shigetada Kadomatsu
MEIJI RUBBER & CHEMICAL CO., LTD.
We, Meiji Rubber & Chemical Co., Ltd. established in 1900, have been supplying rubber
covering materials for Pulp & Paper industry for 115 years. We are dealing a variety ofmaterials and developing the optimum cover rubbers for each section of paper machines basedon the years of experience.
In recent years, due to the diversification of coating & sizing liquid and high speed machine
operation, the requirement of quality stabilization for Applicator rolls cover is becoming harder.
Our material “ Super Polyforte” is a polyurethane material containing the special polymer,
have been adopted in many Applicator rolls and Smoothing press rolls, etc. since starting sales
in 1999.
Now we would like to introduce references of Super Polyforte, particularly focusing on
Applicator rolls in the several paper mills which have achieved stabilization of coating andlonger replacement cycle of rolls.

Fully Sprit Seal for Accurate Rotation―Application to the Vertical Rotating Equipment―
Takashi Kamizono
Engineering Dept., John Crane Japan, Inc.
Adoption of the mechanical seal has been progressing for sealing system of rotating
equipment in the pulp and paper industry. However, the applications of the mechanical seal are
limited to the black liquor or coating collar of pumps or screens.
For the most cases, end users are using gland packing for horizontal and vertical agitatorswith axial runout and vibration that are troublesome to the maintenance persons.
In order to reduce energy conservation and maintenance costs and to provide safety andstability for the daily operation, we have over the past two years introduced the fully split
mechanical seal that is based on our own design with rubber bellows for horizontal agitator withvibration problems.
Today, we would like to introduce our extensive experience of application for vertical pulperthat is running under the severer conditions. For that, we propose an optimal solution using ourfully split mechanical seal for the equipment with axial runout and vibration.

Some Preventive Methods against Erosive Wear in Fluidized Bed Boiler
Tadashi Kimura and Yoichi Shiraishi
Engineering Department, Welding Alloys Japan LTD.
In the power industry, it has been demanded and expected to cope with the energy resources
issues and global environmental problems. Under these expectations, biomass power generation
using wood fuel with a CO 2 reduction effect has been increased as the effective use of resources.
Biomass boilers are burned by flowing the fuel and the medium in a high temperatureenvironment, especially circulating fluidized bed boiler. The advantage of this boiler is that
impact on the global environment is low. It should be considered that economic problems
remain because the erosion wear of the material that is used in the furnace and that repair costs
many occur at the earliest.
This paper discusses about high-temp erosion wear of water-cooled panel and air nozzle inthe boiler furnace (fluidization nozzle) through the test by overlay welding and thermal spraying
to find out proper measures against surface wear. Main results obtained herein through theerosion test are as follows.
a. As for water-cooled boiler panel of pressure boundary heated to about 400℃ , Ni-basematerial like Alloy 625 is one of the candidate material which has good property in weldabililty ,thermal expansion co-efficient etc.
b. As for air nozzle heated to about 800℃ , Co-base material like Stellite No.12 maintaining
high hardness until high temperature seems to be one of candidate material onto the air nozzle.
These material will be hereafter tested including addition of ceramics like Cr 3 C 2 .
c. In the erosion wear, scratching (microplowing) seems to be dominant phenamena for
ductile material.
On the other hand, spalling also seems to be dominant one for brittle material.

Wet End Improvement Method by Correlation Analysis between Water Quality andMachine Operation by S.sensing
Hiroki Katsura, Takashi Saigusa, Katsuhiko Hidaka, Kaname Harada and Shinichi Kurihara
Kurita Water Industries Ltd.

Recent environment around paper industry has been changing, especially in regard toincreasing paper recycle rate. It causes in fluctuation of furnish quality, that influence on
machine running stability and paper product quality. In such a complicated situation, we focus
on “water” used a lot in paper-making process to improve productivity. We report our new
technology, “ S.sensing system” to achieve it by stabilizing water quality. S. sensing system has
three functions: monitoring, analysis and control.
First, we monitor water qualities and accumulate machine running & paper quality
information from customer.
Second, we analyze the correlation among them. Third, we control water quality and achieve
improvement on machine running stability and paper product quality. In this report, we
introduce the case study that defects on paper reduced by analysis correlation between water
quality & defect causes then controlling water with S. sensing system.

Novel Dissolved Lignin Carryover Measurement in O 2 and D 0 Stages Brings
Opportunities for Significant Improvements in Fiberline Operations
Niclas Andersson, Akhlesh Mathur, Caroline Wilke, Ulf Germgård and Masashi Hasegawa
BTG Division Spectris, Co., Ltd.
Conventional fiberline control is solely based on the lignin content of the pulp fibers
expressed as kappa number combined with brightness measurement in the bleaching stages. The
kappa number is measured using a traditional multipoint analyzer with several sample locations
sharing the limited capacity of one central analyzer thus resulting in low update rate and lack of
redundancy. Some mills still only use manual sampling and laboratory kappa measurement
which inevitably means very low update rate and typically also poor repeatability. While thefiber lignin content and brightness indeed are critical parameters for the unit operations’ control,
it has been shown that the dissolved lignin in liquor phase, often referred to as black liquor
carryover, plays a key role due to its impact on the occurring reactions. This carryover
measurement has been a critical missing link in having a fully automated optimum fiberline
process control.
This study presents results from evaluations of two new sensors for capturing the dissolved
lignin carryover in the pulp stock, to properly account for its impact in oxygen delignificationand chlorine dioxide stages. Mill data is combined with laboratory data which confirms thebenefits of these novel control concepts, employing the new sensor tools.
Recent research and mill studies have revealed that if appropriately implemented, these newmeasurement and control capabilities bring significant improvement potential in fiberline

operations, in terms of optimizing pulp yield and quality, production rate, and consumption of
bleaching chemicals.

－Peer Reviewed－
Improvement of Air Filters by Nanocelluloses
Junji Nemoto
Central Research Laboratory, Hokuetsu-Kishu paper Co. Ltd.,
Graduate School of Agricultural and Life Sciences, The University of Tokyo
Toshihiko Soyama
Central Research Laboratory, Hokuetsu-Kishu paper Co. Ltd.,
Tsuguyuki Saito and Akira Isogai
Graduate School of Agricultural and Life Sciences, The University of Tokyo
Freeze-drying of 2,2,6,6-tetramethylpiperidine-1-oxyl(TEMPO)-oxidized cellulose nanofibril(TOCN) dispersions in water/ tert-butyl alcohol (TBA) mixtures was applied to prepare
TOCN/glass fiber composite air filters. The influence of TOCN content in the filters, exposing
conditions of the filters to humid air and the amount of particle loading on the filter properties
were investigated. The TOCN content in the composite filters was controlled from 0 to 0.126%
by controlling the amount of the TOCN/water/TBA mixture sprayed to the base glass filter.
When the TOCN content was 0.081%, the filter quality factor showed the highest value. At the
TOCN content higher than this value, densely packed TOCN networks rather formed andprevented the efficient capture of oil-aerosols used as model particles. After exposing the
TOCN-containing composite filters to high humidity conditions, the pressure drop decreased
and the particle penetration ratio increased. The original porous networks mostly remained andthe high quality factors were maintained even after exposing the filters under humid conditions,while scanning electron microscopy images indicated that some TOCN networks shrank. The
durability of the TOCN-containing composite filters was evaluated by continuous loading of
oil-aerosol particles for 3 h. When the air filter had high TOCN contents, the pressure drop
slightly decreased, because the TOCN networks were aggregated with the particles. However,no TOCNs were removed from the filters even by the air flow with growth of particle
agglomerates. Thus, the porous networks of TOCNs had sufficient durability against particle
loading. Although there are several problems in practical applications of nanocellulose to air
filters, the unique properties of the TOCNs such as the extremely small fiber diameters, highaspect ratios and tough network structures are advantageous in preparing new air filters withhigh performance.

－Peer Reviewed－
Technological Transition of Web Inspection System
Tadashi Tomomura
Inspection System Business Promotion Division, Industrial Automation Business Company,
OMRON Corporation
Web Inspection System has carved a history of about 50 years in Japan. Once the except for
the inspection of special paper, WIS which has not been considered less important than the
instrumentation, such as QCS, became indispensable important system to making paper now.
The manufacturer of new entrants to WIS increase, manufacturer to sell currently in Japan, wasabout more than 10 companies. There are some strong demands for the quality of the user, theresult of competition between WIS manufacturers, performance and function became very well.
I will introduce the evolution of WIS technology.

JAPAN TAPPI JOURNAL １１
November 2016

CONTENTS

Vol.７０, No.１１

Pulp and Paper Research Conference
１ A Report of the２０
１
６（８３rd）Pulp and Paper Research Conference……Wood Science Committee, JAPAN TAPPI

１
４ The New Sticky Removal Agent on the Deinking Pulp Process……Chigusa Taguchi and Satoshi Wada

１
７ Polymer Flocculant for the Dewatering of Papermaking Wastewater which Contains the Anionic Trash Materials……Ken Takeda, Kiyomi Okuzawa and Takafumi Inaba

２
２ Numerical Evaluation of Paper Texture……Hideya Naitoh, Kazuo Nishikawa, Yuji Kurenuma and Yusuke Sakai
Topics & Information

２
５ The Latest Detrashing Technology by IntensaMaXXTM……Masamori Tanaka and Takanori Goto

２
９ New Andritz FiberSolveTM Pulper Rotor Technology―Reduce Specific Energy Consumption in Under Machine and Tub Pulpers―……Yosuke Takeshira and Taku Sato３
３ Nuisance Insects, Especially Chironomid Midges, Attracted to White and Colored
LED Lamps……Goro Kimura, Toshihiro Kusama and Junichi Enokida
３
６ Case Study of the Latest Renovation Project for Grade Change……Jun Kobayashi
４０ Effective Use of Technology Resources……Yasuhiko Shirota
４８ ACA Permi Online Porosity Analyzer for Optimization of Paper Production Process and Caliper Control by ACA RoQ Roll Hardness Profiler……Jyrki Laari and Tsutae Kumagai

５
１ About Energy Conservation Examples of Initiatives Manufacturing……Yoshitada Jyoukou
５
６ Corporate Profile & Product Information ×

３S Co., Ltd.
Research Report（Original Paper）

６
１ Study about the Evaluation Method of Gloss Unevenness……Kazuhiko Ishizuka, Yusuke Kondo and Kazuya Takahashi

０
３ Committee report
７
１ Papyrus
７
４
７
８
７
９
９
０
９
１
９
３

Industry News（Domestic and International）
List of Titles in Foreign Journals Received by JAPAN TAPPI
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 November JAPAN TAPPI JOURNAL
Vol.70, No.11 Abstracts

The New Sticky Removal Agent on the Deinking Pulp Process
Chigusa Taguchi and Satoshi Wada
Kurita Water Industries LTD.
Old newspapers and old magazines are recently used as raw material in the paper mill. Thesepapers contain stickies which are adhesive materials and cause operation trouble such as paper
defects, sheet break and a hickey in a printed article. Stickies are fixed to fiber by coagulant for
reducing these troubles. However, in some cases, coagulant causes a failure of dirt. Therefore,
the technology to remove stickies from paper process is desired. We made clear that themodified nonionic polymer containing hydrophobic group has high performance to remove
stickies on the flotation processes.

Polymer Flocculant for the Dewatering of Papermaking Wastewater which Contains theAnionic Trash Materials
Ken Takeda, Kiyomi Okuzawa and Takafumi Inaba
MT AquaPolymer, Inc.
Recently high usage of recycle fiber such as the deinked pulp (DIP) causes the dewatering
conditions of wastewater to have been getting worse.
It contains the anion trash materials that causes pitch trouble not only on papermaking
process but on wastewater treatment. The cationic polymer flocculants are used for the
dewatering of wastewater treatment. But, the operation control of dewatering process cannot beworked well by a containing the sludge from DIP process because of the blockade of thecationic group by the anion trash materials and fine filler.
This paper presents the new combination with the two rheological different polymers
indicates the high ability of flocculation for papermaking wastewater contains the anion trashmaterials.

Numerical Evaluation of Paper Texture
Hideya Naitoh, Kazuo Nishikawa, Yuji Kurenuma and Yusuke Sakai
Tokushu Tokai Paper Co., Ltd.
Hand feeling is one of the most important features of paper, but is often evaluated by sensory
qualitative test. In this study, the quantitative measurement of hand feeling, especially ease offlipping pages which is thought to be difficult to evaluate numerically, is investigated.
The use of wearable contact force sensor reveals that ease of flipping pages can be briefly
quantified, and furthermore implies that it is possible to measure the delicate difference of senseat the unconscious level.

The Latest Detrashing Technology by IntensaMaXXTM
Masamori Tanaka and Takanori Goto
Voith IHI Paper Technology Co., Ltd.
For the latest detrashing system of pulping stage, more effective machine is required because
the contaminants ratio of raw material is getting increase recently. The IntensaMaXXTM is the
new detrashing machine which fulfills the request for better detrashing operation. The rotor andscreen plate are located at the top of the tank, and this layout prevents wearing and jamming by
heavy contaminants. The rotor axis is located as eccentric against the center axis of the vat. Thislayout prevents strong centrifugal flow and also growth of long contaminants. The piping layout
is also considered for the better reject removal. At the actual operation, IntensaMaXXTM issaving much power consumption and the cost of wearing parts as well. At the same time, themachine can be operated without any trouble for long time.

New Andritz FiberSolveTM Pulper Rotor Technology― Reduce Specific Energy Consumption in Under Machine and Tub Pulpers ―Yosuke Takeshita and Taku Sato
Andritz K.K.
Andritz has developed FiberSolveTM Pulper Rotor Technology designed to reduce specificenergy consumption for retrofit applications in Under Machine, and Tub pulpers.

Computational Fluid Dynamic studies were performed to develop a rotor design capable ofimproving pulper efficiency. By increasing the pumping effect of our rotor design, versus theolder attrition/cutting designs, Andritz has been able to successfully retrofit a wide variety ofpulpers to increase capacity and reduce energy with no change to existing drive.

Nuisance Insects, Especially Chironomid Midges, Attracted to White and Colored LED
Lamps
Goro Kimura
Technical Research Laboratory，Ikari Shodoku Co., Ltd.
Toshihiro Kusama
Technical Development Division, Ikari Shodoku Co., Ltd.
Junichi Enokida
Wide Area Business Division，Ikari Shodoku Co., Ltd.
Black fluorescent lamps are one of the most effective lamps for light traps. Aquatic insects,
such as Trichoptera, Diptera (especially Chironomidae) and Ephemeroptera (especially
Caenidae), are known to be attracted by ultraviolet (UV) light (Positive phototaxis). However,there was no significant difference between the attracted number of adult chironomids with awhite fluorescent lamp (including UV) and a white LED lamp (not including UV) during theour previous study. In the present study, we attempted to clarify the attractive effect ofwavelength on the adult chironomids in the field. The effects of four different light wavelengths
were studied using an UV + blue LED lamp, an UV + green LED lamp, an UV+green+blue, andan UV+white LED lamp. An UV+green+blue lamp attracted the highest number of specimens,
followed by an UV + green LED lamp. We also collected adult chironomids using light traps
with non-attractive lamps, such as a yellow LED lamps (not including UV), a green LED lamp
(not including UV), and a white LED lamp (not including UV). A yellow LED lamp attracted
the lowest number specimens, followed by a green LED lamp. These results suggest adultchironomids were attracted to both the UV and the visible lights, especially green.

Case Study of the Latest Renovation Project for Grade Change
Jun Kobayashi
Paper Machinery Engineering Dept., Kobayashi Engineering Works, Ltd.

We, Kobayashi Engineering Works, Ltd. has many experiences and records of plant
construction in Japan as well as overseas markets extending our utmost respond to client needs
since our company was founded.
As the result, we received orders for relocating project at Wang-Sala mill PM9 in 2005 andrenovation for product increase of PM9 in 2012. Moreover, a new order of rebuild project at
Ban Pong mill PM17 in 2013 from SKIC (Siam Kraft Industry Co., Ltd.), one of the group ofleading paper manufacturing company, SCG (Siam Cement Group) in the Kingdom of Thailand.
These repeat orders are the proof that show the client and Kobayashi as the machine supplier
have good collaborating relationship and creates great advantages for SKIC.
This report introduces PM17 fourdrinier 3-layer paper machine and large-scale renovation for
entire machine changing the grade from corrugating medium to gypsum linerboard, and presents
the progress of machine start-up.

Effective Use of Technology Resources
Yasuhiko Shirota
Japan Business Innovation Consulting Co., Ltd.
The program of “Effective use of technology resources” is called “Technology Resources
Management

Program”.

“TRM” for short.

“TRM” is management program that builds structure of Effective use of technology
resources.
They are used for orientation, such as the product development, the technology development,
the stabilization of the production and so on.
That activity will be developed at four points of view.
1.

Stocktaking and definition of some technique (the skill) that the company holds

2.

Mechanism analysis and value evaluation of the technique and skills that were

investigated3.

Making of the technical data and making of the technical strategic scenario

4. Technical succession and TRM's structure construction.

ACA Permi Online Porosity Analyzer for Optimization of Paper Production Process andCaliper Control by ACA RoQ Roll Hardness Profiler
Jyrki LaariACA SYSTEMS OY
Tsutae Kumagai
Shin Nihon Coporation
The PERMI, being a fast and reliable on-line porosity analyzer from ACA Systems Oy, helps
papermakers to rapidly adjust all grades to specification and carry out fast paper grade changes.
Paper quality variations in the machine direction can be reduced with greater ease when a fast
real paper quality measurement is available.
The refining of chemical pulp can be optimized for each paper grade in spite of qualitychanges in the incoming pulp.
Caliper variations are far too small to be picked up by online scanners or test labs.
Hardness profile is an excellent indicator of paper material being level enough to be woundup.
The main advantages of ACA RoQ roll hardness profile measurement are that the test can be
carried out quickly, and that it can identify problematic rolls, which will potentially cause
runnability issues.

About Energy Conservation Examples of Initiatives Manufacturing
Yoshitada Jyoukou
Takaoka Mill-Futatsuka, Chuetsu Pulp & Paper Co., Ltd.
In order to prevent global warming which is caused by the CO2 is a greenhouse gas, whiletake measures on a global scale, responsibility is increasingly against the corporate environment.
Energy saving in the pulp and paper industry, resource saving, and is being promoted efforts to
reduce CO2emissions. In addition, cost reduction by energy saving in terms of production has
become a major issue, it is still the situation that must be stacked to further effort.
In our production department established the Energy Conservation Committee in 1990, it has
been focused on day-to-day energy-saving activities. While large-scale capital investment has
decreased, improvement by large-scale equipment modification is not expected, it is only nostatus quo will build up a small energy saving.
This time, we will introduce the efforts content and examples that we have implemented.

－Peer Reviewed－
Study about the Evaluation Method of Gloss Unevenness
Kazuhiko Ishizuka and Yusuke Kondo
NPi Research Laboratory, Nippon Paper Industries Co., Ltd.
Kazuya Takahashi
Hokkaido Mill, Nippon Paper Industries Co., Ltd.
The system consisting of a line light source, a line scan camera, and a movable stage wasused to evaluate the gloss unevenness of coated paperboards. The pattern of gloss obtained fromthe images was matched with the gloss unevenness obtained by visual test. By frequency
analysis of the images, the amplitude at the specific frequency (wavelength was around 6 mm)
had strong correlation with the gloss unevenness of visual test. It indicates that this system isavailable for evaluating gloss unevenness and analyzing its cause. Also, by the result from paper
formation measurement, the major cause of gloss unevenness was the uneven formation of basepaper. Furthermore, the sheet formation of the surface layer of the coated board had much more
influence to the gloss unevenness than that of the middle layer.

JAPAN TAPPI JOURNAL １２
December 2016

CONTENTS

Vol.７０, No.１２

Environment
１ A Report of the２３rd Environmental Conference……Environmental Technical Committee, JAPAN TAPPI

３ Treatment of Recalcitrant Organic Matter in Wastewater……Kenta Furusho
１
０ The Technique of Curing Activated Sludge Treatment System and Odor Control
during Shutdown……Kenji Hayashi
１
４ Advanced Treatments of Waste Waters with Microbubbles of Ozone and Air……Yasuo Onari

２
１ Reduction of Water Usage at Niigata Mill
―Toward Our Minimum Impact Mills―……Takenobu Danno

２
５ Basic and the Case Study of Low―frequency Noise Countermeasure in a Factory―Listen and Feel How We Can Resolve the Noise Problem―……Masahiko Aoki

３
０ Actual Example of Vibration Trouble―Search the Invisible Cause of Vibration Trouble―……Akihiko Miyazaki

３４ Minamata Convention and Control of Mercury Air Emissions……Tomonori Tamura
３
８ Effluent Management with Bioassay―from a Perspective of the Test Facility―……Atsushi Sawai

４
４ New Indexes of Bottom DO and Coastal Transparency……Rina Miyake
４
８ Introduction to Environmental Law： Water Pollution Control Law and Waste
Management and Public Cleaning Law―Ror Preventing Violation of the Laws―……Yoshihiro Kemmoku

５
４ Penalty Arising from the Violation of Waste Management and Public Cleaning
Act―Recent Case Study and Future Amendment of the Act―……Izumi Sato５
７ Local Government―led Renewable Energy of Nakanojo―Local Production for Local Consumption of Urban Development and the Power of Renewable Energy―……Masao Yamamoto
Topics & Information
６
２ Corporate Profile & Product Information ØSpectris Co., Ltd.
６
６ Basics of Ozone Bleaching, Part１
Properties of Ozone and Bleaching Conditions……Takanori Miyanishi
Introduction of Research Laboratories
（１
１４）

７
６ Japan Agency for Marine―earth Science and Technology（JAMSTEC）,Researchand Development Center for Marine Biosciences, Marine Bioresource Exploration
Research Group
Research Report（Original Paper）

７
９ Evaluation of Salt Tolerance in Candidate Elite Eucalyptus globulus Conal Plants
and Field Test……Yuji Fujii, Kenichiro Suyama, Kazunori Hayashi, Toshiaki Tanabe andAkiyoshi Kawaoka

０
３
７
５
７
８
９
６

Committee report
Essay on Intellectual Property
Coffee break
Papyrus

１
０
０
１
０
５
１
１
５
１
１
６
１
１
８

Industry News（Domestic and International）
List of Patents issued and Laid―open Publication
Price list of Domestic Logs and Wood Chips by District
Other Monthly Statistics
News from the Association

2016 December JAPAN TAPPI JOURNAL
Vol.70, No.12 Abstracts

Treatment of Recalcitrant Organic Matter in Wastewater
Kenta Furusho
NIPPON STEEL&SUMIKIN Eco-tech Corporation
Conventional activated sludge process is biological treatment and BOD resolution
will be done. But it's difficult to take COD of trouble resolvability apart and process it.
We have developed remarkable activator of a microorganism. This activator of a
microorganism, remains COD is reduced and the ability of the activated sludge
processing is improved.

The Technique of Curing Activated Sludge Treatment System and Odor Control during
Shutdown
Kenji Hayashi
Mushugen Industries Co., Ltd.
To avoid any troubles in the pulp and paper wastewater treatment at the restart after“Shutdown”, it is necessary to restrain the decline in performance of the activated sludge
treatment process : main process of the pulp and wastewater treatment, against extream
load-fluctuation stress during “Shutdown”. So we have suggested the original program ofcuring activated sludge process during “Shutdown”for many factories.
As the schedule of “Shutdown”varies each time, we have to not just remake the program butcorrect it according to the actual transition of the load or condition of the activated sludge
treatment process.
In this paper, we describe the technique of scheduling, simple confirmation way for the actual
transition of the activated sludge treatment process, lead operation to a correct direction, andodor control during “Shutdown”.

Advanced Treatments of Waste Waters with Microbubbles of Ozone and Air

Yasuo Onari
Mie Prefecture Industrial Research Institute
Different from the characteristics of millimeter size bubbles, microbubbles bear minus charge
in those gas-liquid surface region, greater surface area and slow floatation speed in water.
Microbubbles smaller than about 10 micron are also known to shrink easily by any physicalshock to result bubble crash and hydroxyl radicals production. From these characteristics,
microbubbles of ozone and air are expected to have high potential for removal agents of watercontaminants such as hydrophobic materials and plus charged pollutants represented by proteinsand microorganisms.
In this paper, by taking into account the retrofitting abilities of microbubbles, water
treatments with ozone oxidations by using millimeter size bubbles were mentioned.
Waste water treatments of a fish food factory by using air and ozone microbubbles were
examined and resulted good removal efficiencies of its pollutants. For biological filtration
treatment of urine by using a soil bed permeation system, air microbubbles were shown to be agood support for aerobic condition keeping of the system and taking a new lease of the life of
the the system.

Reduction of Water Usage at Niigata Mill －Toward Our Minimum Impact Mills－
Takenobu Danno
Technical & Development Dept., HOKUETSU KISHU PAPER CO., LTD.
Hokuetsu Kishu Paper Co., Ltd (HKP) has set an approach of “Minimum Impact” tominimize all impacts on the environment. HKP has carried out much efforts of CO2 emission
reduction against global warming, air pollution and water pollution in order to establish ourminimum impact mills. Particularly, HKP has been actively carried out a variety of initiatives
and capital investment in Niigata mill, which is the largest mill in HKP.
We have the same approach for water-saving. Although the City of Niigata has much of water
resources, the amount of our water intake is limited and we have carried out various efforts ofwater-saving as we expand a production capacity. In this paper, certain efforts of ourwater-saving at the time of constructing No. 9 paper machine are described.

Basic and the Case Study of Low-Frequency Noise Countermeasure in a Factory

― Listen and Feel How We Can Resolve the Noise Problem ―Masahiko Aoki
Acoustic Solution Division, Nihon Onkyo Engineering Co., Ltd.
There are a lot of possibilities to provide the countermeasures for the noise problems in plant.
Actually we have been seeing many cases, some of them are well-examined and effective, butsome of them are very difficult to expect suitable noise reduction. In this presentation, we would
like to introduce both effective and non-effective countermeasures.
And actual recorded and simulated noises are presented for helping to understand thesedifferences. Also, examples for solving low-frequency noise are presented.

Actual Example of Vibration Trouble ―Search the Invisible Cause of Vibration Trouble―

Akihiko Miyazaki
Solution Engineering Department, Engineering Division, Tokkyokiki Corporation
At this seminar, we showed vibration control technology and the counter measures at
actual sites in the customers. They are only parts of a lot of our experiences by the works at thesites.
However, we expect you may be able to take the right action at the first stage of the trouble
and make an appropriate decision when you face to the trouble by knowing such ourexperiences.
As a result, you may reach the cause without detail investigation if the case is similar to it thatyou learned, and you may be able to solve the problem without unnecessary works. It will be apleasure that our experiences help to solve your trouble.

Minamata Convention and Control of Mercury Air Emissions
Tomonori Tamura
Ministry of the Environment Government of Japan
In order to ensure accurate and smooth implementation of the Minamata Convention on
mercury, both "Act for the Partial Amended Air Pollution Control Law" (Law No. 41, on June

19, 2015), and "Ordinance for the Partial Amended Enforcement Order of the Air Pollution
Control Law " (No. 379, on, November 11, 2015) were promulgated in the same year.
Furthermore, the discussion of specific emission standard value of each type and scale for the
mercury emissions facility, and its measurement method was carried out, and the primary reportfor the implementation of mercury air emissions measures was compiled, based on Minamata
Convention on the mercury in the Central Environment Council on June 14, 2016 as well.

Effluent Management with Bioassay ―from a Perspective of the Test Facility―
Atsushi Sawai
IDEA Consultants, Inc.
Introduction of new effluent management procedure have been discussed at the committee of
Ministry of the Environment, Japan from 2010. The existence of the effluent management withbioassay will be discussed in 2016, with the participation of newly selected committee member
from industry. Introduction of new effluent management is considered as voluntary management
system. The bioassay is considered three toxicity tests which are fish embryo larvae short term
toxicity test, daphnia reproduction test and algae growth inhibition test. Some major company
voluntarily addressed new effluent management with bioassay as part of activities for aconservation of biodiversity. Major issue facing test facilities are raring management of test
animals, the cost of bioassay and accuracy management of bioassay.

New Indexes of Bottom DO and Coastal Transparency
Rina Miyake
Ministry of the Environment
It has passed more than 40 years since establishment of living environmental items ofEnvironmental Quality Standards for Water Pollution (EQSWP) depending on theEnvironmental Basic Law. In the water environment situation changes, it is difficult for people
to realize the conservation status of the water environment from achievement status of EQSWP,
and there are still such issues as oxygen-deficient water mass and decrease in seaweed bed andtidal flat. In this regard, The Central Environment Council has decided that the bottom dissolved
oxygen as a new living environment item of EQSWP and coastal transparency as a regional goal.
The details of these new indexes are described.

Introduction to Environmental Law: “Water Pollution Control Law” and “Waste
Management and Public Cleaning Law” ― Ror Preventing Violation of the Laws ―Yoshihiro Kemmoku
Kemmoku Ecosupport
In this paper two Environmental Laws were briefly described.
1.

Water Pollution Control Law
Factories and establishments(businesses) are required to submit a report when they intend

to install a Specified Facility. Businesses shall carefully measure the pollution level of theeffluents and identify the state of the discharging areas, for example, the quantity of theeffluents such as harmful substances and other pollution indicators including BOD/COD. The
legal effluent standards shall be obeyed by proper waste water treatment. However there are still
violations including forgery of measured date and erroneous notification.
The businesses shall submit a report when they intend to install a facility using or storing
harmful substances and they must prevent groundwater pollution. Further they are required toperiodically check the floor, piping, waterways of the facility, in order to prevent groundwaterpollution. We must recognize that the clean-up measures to improve the quality of thegroundwater takes very long time.
2.

Waste Management and Public Cleaning Law

This law regulates waste generators (businesses) through the control of waste management
which includes waste sorting, storage, collection, transport, recycling, and disposal. The
businesses shall be required to manage of their industrial waste appropriately by themselves
even if they are to commission anyone else to transport or dispose etc. of their industrial waste.
And they shall endeavor to take the necessary measures and action for proper management of
the said industrial waste in the whole process from its generation to final disposal and recycling.
For example, followings are some of the effective measures for waste management; to do
on-site survey of the contractor’s intermediate treatment and final disposal facilities in order toconfirm their actual operation(obeying the law or not), and when the issuer (businesses) receives
a returned copy of the control manifest from contractors they(businesses) must confirm that thetransportation or the disposal has properly completed by confirming the said copy. However
there are still many violations of the regulations and illegal waste dumping.

Penalty Arising from the Violation of Waste Management and Public Cleaning Act

－Recent Case Study and Future Amendment of the Act－
Izumi Sato
Attorney at law
Waste Management and Public Cleaning Act was enacted in 1970, which was amended
several times in order to prevent illegal dumping and to improve the standard of waste
management. Today, a company which violates the act faces severe criminal and administrative
penalty. In 2016, a news of food waste scandal was widely spread and the Ministry ofEnvironment warned that the company who generate the waste shall be more responsible toconfirm the status of waste disposal. The next amendment of the act is now under discussion.

Local Government-led Renewable Energy of Nakanojo―Local Production for Local Consumption of Urban Development and the Power ofRenewable Energy―
Masao Yamamoto
Nakanojo-Denryoku General Foundation
In Gunma Prefecture Nakanojo, the first time in the country as a local government initiativein August 2013, they founded the corporation “ Nakanojo-Denryoku General Foundation” toperform a power producer and supplier. “Nakanojo-Denryoku”, purchase power from the threeplaces of the solar power plant Nakanojo to management, such as office and school, is supplied
to the town of public facilities. In addition, to start the sales of power to the town of households
from July. These, as a resource for renewable energy in the region of Nakanojo, raised thepower from there, doing the embodying efforts to “local production for local consumption of
power” continue to supply the region.

Basics of Ozone Bleaching
Part 1：Properties of Ozone and Bleaching Conditions
Takanori Miyanishi, JAPAN TAPPI
Ozone bleaching began on an industrial scale in 1992 in connection with increasing
environmental pressure and customers’ demand for Elemental Chlorine Free (ECF) and Total

Chlorine Free (TCF) bleached pulps. Ozone bleaching did not immediately reach its optimal
efficiency from a technical viewpoint, but had to face several issues during its early years. By
improving mixing technology, better understanding ozone chemistry on pulp components andtuning the whole process, ozone bleaching sequences made it possible to produce a pulp quality
similar to or better than conventional ECF would do. They mark a clear milestone in thedevelopment of environmentally sound bleaching methods. Today the choice of ozone may still
be motivated by ecological requirements but it is mostly justified by the economical savings
resulting from chemical cost reduction. They allow combining high brightness and strength withcost efficiency. Ozone bleaching is conducted either at medium or high pulp consistency,
depending on ozone bleaching process suppliers. The choice of one process over anotherdepends on a number of factors-including investment costs, carry-over load, bleaching filtrates
recirculation and bleach plant temperature profile and others.

－Peer Reviewed－
Evaluation of Salt Tolerance in Candidate Elite Eucalyptus globulus Conal Plants andField Test
Yuji Fujii, Kenichiro Suyama, Kazunori Hayashi, Toshiaki Tanabe and Akiyoshi Kawaoka
Research and Development Division, Agri-Biotechnology Research Laboratory, Nippon Paper
Industries Co., Ltd.
Twenty three elite tree candidates that had been selected for their superior growth rate (1.5times or more greater timber volume relative to maximum girth of tree) 5 years after being
planted in a Eucalyptus globulus afforested area in Western Australia were cloned using a tissue
culture technique. Three trees (Clone A-C) were then selected for shoot proliferation and highrooting ability. To examine their salinity tolerance, 8-month-old cloned seedlings were thentreated with a 100 mM saline solution or.water for 4 weeks. A comparison of the growth rate of
the cloned seedlings indicated that Clone A grew the most with the saline-treatment. Based on
the measurement results of chlorophyll fluorescence and stem water potential, it is conceivablethat the tolerance mechanism was involved in response to water stress. Next, field tests wereconducted by planting the 3 elite tree clone seedlings and commercial seedlings. In comparing
timber volumes with trees grown from commercial seedlings at 8.5 years of age, Clone A wasfound to be 1.64 times larger, while Clones B and C were approximately the same. Based on thefact that saline water existed at the test site, it was inferred that there was a connection between
the salinity tolerance mechanism that was recognized in the cloned seedlings and the highgrowth rate.