Source: http://www.google.com/patents/US8202586?dq=7,292,151
Timestamp: 2017-08-22 00:23:04
Document Index: 303132363

Matched Legal Cases: ['§371', '§119', 'Application No. 2005', 'Application No. 2005', 'Application No.2005', 'in fine']

Patent US8202586 - Ink-jet recording material - Google Patents
The present invention provides an ink-jet recording material containing: a support; and at least two ink-receiving layers of an ink-receiving underlayer and an ink-receiving top layer, the ink-receiving layers containing a pigment and a binder and being disposed on the support; characterized in that...http://www.google.com/patents/US8202586?utm_source=gb-gplus-sharePatent US8202586 - Ink-jet recording material
Publication number US8202586 B2
Application number US 11/815,000
PCT number PCT/JP2006/301222
Also published as DE602006007440D1, DE602006018670D1, EP1842687A1, EP1842687A4, EP1842687B1, EP2080633A1, EP2080633B1, US8771811, US20090136692, US20120225223, WO2006080395A1
Publication number 11815000, 815000, PCT/2006/301222, PCT/JP/2006/301222, PCT/JP/6/301222, PCT/JP2006/301222, PCT/JP2006301222, PCT/JP6/301222, PCT/JP6301222, US 8202586 B2, US 8202586B2, US-B2-8202586, US8202586 B2, US8202586B2
Inventors Tomomi Takahashi, Ryu Kitamura, Takehiko Kishimoto, Hideo Mitsui, Shigeru Suzuki
US 8202586 B2
This application is the U.S. National Phase filing under 35 U.S.C. §371 of PCT/JP2006/301222, filed Jan. 26, 2006, which designated the United States and was published in a language other than English, which claims priority under 35 U.S.C. §119(a)-(d) to Japanese Patent Application No. 2005-020625, filed Jan. 28, 2005; Japanese Patent Application No. 2005-124996, filed Apr. 22, 2005; and Japanese Patent Application No.2005-151790, filed May 25, 2005. The content of these applications is incorporated herein by reference in their entireties.
(14) An inkjet recording material as set forth in (12) or (13), characterized in that the pigment B is a wet process silica with an average particle diameter of 0.01 to 0.7 μm.
In the paper base material, a sizing agent, a fixing agent, a paper-reinforcing agent, a cationizing agent, yield-improving agent, a dye, a fluorescent whitening agent, or the like, may be formulated as an auxiliary agent. Moreover, the surface strength, sizing degree, or the like, may be adjusted in a size press process of a paper making machine by applying or impregnating starches, polyvinyl alcohols, cationic resins, or the like. It is preferable that the Stoeckigt sizing degree (of 100 g/m2 paper) be approximately 1 to 200 seconds. When the sizing degree is low, generation of wrinkles at the time of application or other problems may occur in operation. When the sizing degree is high, there are cases in which the ink absorbing capability deteriorates and curling or cockling occurs significantly after printing. The more preferable sizing degree is within the range of approximately 4 to 120 seconds. Although the basis weight of the paper base material is not particularly limited, the basis weight is generally within the range of approximately 20 ˜400 g/m2. In particular, the basis weight is preferably within the range of approximately 50 to 150 g/m2, and even more preferably 60 to 120 g/m2, for printing application.
It is preferable that the finely agglomerated pigment be formed by agglomeration of primary particles with an average primary particle diameter of 0.003 to 0.04° μm. It is more preferable that the pigment with an average particle diameter of 0.01 to 0.5 μm be formed by agglomeration of primary particles with an average primary particle diameter of 0.005 to 0.020 μm so that the dye or pigment contained in ink is easily fixed in the ink-receiving top layer and favorable ink-absorbing rate, image density, and gloss are realized. It is even more preferable that the pigment with an average particle diameter of 0.02 to 0.2 μm be formed by agglomeration of primary particles with an average primary particle diameter of 0.007 to 0.013 μm. The average particle diameter of 0.008 to 0.7 μm may be realized by applying a strong force using a mechanical apparatus in accordance with a so-called breaking down method (in which agglomerated raw materials are pulverized in fine parts). Examples of the mechanical apparatus include an ultrasonic homogenizer, pressure-type homogenizer, liquid-liquid collision type homogenizer, high speed roiling mill, roller mill, container driven medium mill, medium stirring mill, jet mill, mortar, disintegrator (apparatus that grinds and kneads an object in a bowl-shaped container using a pestle-shaped stirring bar), sand mill, and the like. In order to decrease the particle diameter, it is required that classification and repeated pulverization be performed.
4) dicyan-based cationic resins such as dicyandiamide-formalin polycondensation products;
5) polyamine-based cationic resins such as dicyandiamide-diethylenetriamine polycondensation products;
6) epichlorohydrin-dimethylamine addition polymers;
7) dimethyldiallyl ammonium chloride-SO2 polymers,
8) diallylamine-SO2 polymers;
11) dialkylaminoethyl (meth)acrylate quaternary ammonium salt polymers;
12) acrylamide-diallylamine salt copolymers; and
In the present specification, the phrase “particle diameter” refers to a number average particle diameter. In the case where primary particles are monodispersed, the phrase “particle diameter” refers to an average primary particle diameter. In the case where primary particles are agglomerated to form secondary particles, the phrase “particle diameter” refers to an average secondary particle diameter. The average particle diameter (average primary particle diameter or average secondary particle diameter) is determined by stirring and dispersing a 5% dispersion liquid for 30 minutes using a homonmixer at 2,000 rpm, and then immediately applying the dispersion liquid to prepare a sample, followed by observing the dispersion liquid using electron microscopes (SEM and TEM), taking electron micrographs at 10,000 to 400,000-fold magnification, measuring the Martin's diameter of the secondary particles within a 5-cm square, and then averaging obtained values (see “Fine particle handbook”, Asakura Shoten, page 52, 1991).
“Inkjet recording material”
[Coating Liquid A]
[Coating Liquid C]
An ink-jet recording material was prepared in a similar way to that of Example 2, except that an alumina (manufactured by Cabot Corporation, under the trade name of PO-003) with an average particle diameter of approximately 0.2 μm was used instead of the silica fine particle A in the ink-receiving top layer.
An ink-jet recording material was prepared in a similar way to that of Example 10, except that 0.02 parts of a blue-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT BLUE DS 18) and 0.05 parts of a violet-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT VIOLET BE) were formulated with respect to 100 parts of the pigment in the ink-receiving underlayer.
An ink-jet recording material was prepared in a similar way to that of Example 10, except that 0.02 parts of the blue-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT BLUE DS 18), 0.04 parts of the violet-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT VIOLET BE), and 0.02 parts of a yellow-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT YELLOW 5G) were formulated with respect to 100 parts of the pigment in the ink-receiving underlayer.
An ink-jet recording material was prepared in a similar way to that of Example 10, except that 0.02 parts of the blue-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT BLUE DS 18), 0.04 parts of a red-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT RED KBS), and 0.02 parts of the yellow-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT YELLOW 50) were formulated with respect to 100 parts of the pigment in the ink-receiving underlayer.
An ink-jet recording material was prepared in a similar way to that of Example 10, except that 0.02 parts of the blue-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT BLUE DS 18), 0.04 parts of the violet-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT VIOLET BE), and 0.02 parts of the yellow-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT YELLOW 5G) were formulated with respect to 100 parts of the pigment in the ink-receiving top layer.
Each ink-jet recording material of Examples 10 to 14 was evaluated using a blank paper thereof and a printed matter thereof obtained using a pigment ink-jet printer (ISO-400 image, “High-resolution color digital standard image data ISO/JIS-SCID”, page 13, image name: fruit and basket), in comparison with a glossy coated paper A2 for printing (manufactured by Oji Paper Co., Ltd., under the trade name of OK TOPCOAT+, 127.9 g/m2) and an offset-printed matter thereof (the same image as the above-mentioned image). Results are shown in Table 2.
Scratch- gloss and
Smooth- Ink Recorded resis- pigment-
ness of absorb- image tance ink printed
blank ing ca- quality of pig- portion
sheet pability Dye Pigment ment ink gloss ΔE
Preservability White- Chroma- Chroma-
of ness ticity ticity
White hue white paper degree index a* index b*
Glossy coated — Approximately 85.0 0.84 −1.71
paper A2 unchanged
Example 10 White Approximately 92.5 0.20 0.75
Example 11 Blue-white Approximately 93.1 2.42 −6.30
Example 12 Approxi- Approximately 85.7 0.81 −1.72
Example 13 Approxi- Approximately 87.3 0.90 −1.90
Example 14 Similar hue, Significantly 85.2 0.94 −2.00
An ink jet recording material was prepared in a similar way to that of Example 18, except that the formulation amount of the silica dispersion liquid c (as a coarse-grained pigment) in the coating liquid H was changed from 4 parts to 1 part.
An ink-jet recording material was prepared in a similar way to that of Example 18, except that a gel-type silica with an average particle diameter of 0.03 was used instead of the gel-type silica with an average particle diameter of 0.3 μm in the coating liquid D.
An ink-jet recording material was prepared in a similar way to that of Example 18, except that a gel-type silica with an average particle diameter of 0.8 vi was used instead of the gel-type silica with an average particle diameter of 0.3 μm in the coating liquid D.
gloss degrees
Smooth- Ink Recorded Scratch- portion and
ness of absorb- image resistance at a portion Color
blank ing ca- quality of pig- printed with a stabilizing
sheet pability Dye Pigment ment ink pigment ink Cockling rate
Reference Example 1 A C 2.10 2.05 A A A A
Reference Example 2 C A 2.08 2.03 A A A A
Reference Example 3 A A 1.90 1.81 A A C A
White hue degree index a* index b*
An ink-jet recording material was prepared in a similar way to that of Example 25, except that a fumed alumina sol with an average particle diameter of 0.2 μm (manufactured by Cabot Corporation, under the trade name of PG-003) was used instead of the pseudoboehmite sol and the formulation amount of the PVA was changed to be 9 parts.
An ink-jet recording material was prepared in a similar way to that of Example 32, except that 0.02 parts of a blue-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT BLUE DS 18), 0.04 parts of a violet-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT VIOLET BE), and 0.02 parts of an yellow-based colored pigment (manufactured by TOYO INK MFG. CO., LTD., under the trade name of EMT YELLOW 56) were formulated with respect to 100 parts of the pigment in the first coating layer.
To 100 parts of a fumed alumina sol with a particle diameter of 0.2 μm (manufactured by Cabot Corporation, under the trade name of PG-003), 4 parts of a powdery silica (manufactured by TOKUYAMA Corp., under the trademark of FINESIL X-30) was added and dispersed (using a homomixer at 1,500 rpm for 30 minutes), and then 12 parts of PVA with a polymerization degree of 4,000 and a saponification degree of 98% and water were added and mixed to prepare a 10% coating liquid.
Scratch- at a blank
Smooth- Ink Recorded resis- portion and
ness of absorb- image tance at a portion
blank ing ca- quality of pig- printed with a
sheet pability Dye Pigment ment ink pigment ink
Preservability White- Chro- Chro-
of ness maticity maticity
Example 33 Approxi- Approximately 85.7 0.81 −1.72
[Coating Liquid K]
[Silica Fine Particle H]
A gel-type silica (manufactured by Grace Davison, under the trademark of SYLOID 74×6500) was dispersed using a sand mill and then further dispersed using a pressure-type homogenizer. The dispersion procedures were repeatedly performed using the sand mill and the pressure-type homogenizer until the average particle diameter was 0.4 μm. Thus, a 10% aqueous dispersion was prepared.
[Coating Liquid N]
[Coating Liquid O]
[Coating Liquid P]
[Coating Liquid Q]
[Coating Liquid R]
An ink-et recording material was prepared in a similar way to that of Example 41, except that a commercially available coated paper (manufactured by Oji Paper Co., Ltd., under the trade name of OK TOPCOAT+, 104.7 g/m2) was used instead of the support C.
[Coating liquid T]
[Coating liquid U]
Comparative D D 92 −1.1 1.1
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US6632487 Mar 10, 1999 Oct 14, 2003 Bando Chemical Industries, Ltd. Sheet having powder coated thereon, and production and use thereof
US6632488 * Feb 22, 1999 Oct 14, 2003 Oji Paper Co., Ltd Ink jet recording material
US6991330 Apr 24, 2003 Jan 31, 2006 Mitsubishi Paper Mills Limited Ink-jet recording material for proof
US20040096598 Oct 15, 2001 May 20, 2004 Mitsubishi Paper Mill Limited Ink-jet recording medium and method for production thereof
EP1033259A2 Feb 28, 2000 Sep 6, 2000 Oji Paper Company Limited Ink jet recording medium
EP1084859A1 Nov 18, 1999 Mar 21, 2001 Teikoku Printing Inks Mfg. Co., Ltd Recording material
EP1193077A2 Sep 26, 2001 Apr 3, 2002 Canon Kabushiki Kaisha Recording medium and image forming method utilizing the same
EP1236582A1 Feb 27, 2002 Sep 4, 2002 Canon Kabushiki Kaisha Recording medium, image-forming method employing the same, process for producing the same
EP1452328A1 Nov 8, 2002 Sep 1, 2004 Oji Paper Co., Ltd. Ink jet recording paper
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2 European Search Report issued in corresponding European Patent Application No. EP 09 15 7652, dated Jun. 16, 2009.
3 Fine Powder Handbook, Aasakurashoten, p. 52, 1991.
4 International Search Report from PCT/JP2006/301222 dated Apr. 18, 2006.
5 Yoldas, Bulent E., "Alumina Sol Preparation from Alkoxides", Amer. Ceram. Soc. Bull., vol. 54, No. 3, 1975, p. 289-290.
U.S. Classification 428/32.25, 428/32.39, 427/256, 428/32.37, 106/400
International Classification B41M5/50, C04B14/00, B05D5/00
Cooperative Classification B41M5/506, B41M5/5218
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKAHASHI, TOMOMI;KITAMURA, RYU;KISHIMOTO, TAKEHIKO;AND OTHERS;REEL/FRAME:021891/0614