Cellulose Acetate Resin®

CAFBLO

Features of CAFBLO®
®

✓ ｢CAFBLO ｣ is made from cellulose, acetic acid and plasticizer that have biodegradability, therefore it isrecognized the eco-friendly material.
®
✓ ｢CAFBLO ｣ is featured as natural material and highly biodegradable, it has the characteristics“transparency” and “recyclability”.

Features12345Non-edible Biomass
Material Recyclable
Transparency
Marine Biodegradability
Antibacterial

Cellulose

Acetic Acid

CAFBLO

Plasticizer®
2

Cellulose Acetate chain
A material that returns to nature from cellulose obtained from non-edible plants such as wood andcotton.
Plasticizer

cottonCellulose Acetate
Acetic Acid
Dry spinning

Cellulose Acetate Resin＜Resin＞
wood・CAFBLO

Cellulose＜Polymer(Flakes)＞
・General grade
・CAFBLO🄬＜Acetate tow(Fiber)＞・Sylphlace🄬3®

Grade Lineup✓ Under the REACH regulation, both RSS025 and RSF208 are restricted to a maximum shipping limit of 40 tons
within the EU region.
✓ “RSF038” will be cleared REACH regulation restrictions.

GradeTestMethodUnitFeatures

RSS025

RSF208

RSF038

StandardHigh Flow

High Flow

Density
MFR/220℃*10kgISO 1183
ISO 1133

g/cm3

1.28

1.27

1.28

g/10min

2270-

Tensile Strength

ISO 527

Mpa

5342-

Flexural Strength

ISO 178

Mpa

6349-

Flexural Modulus

ISO 178

Mpa

2,600

2,100-

Notched Charpy impact strengthISO
179/1eA

kJ/m2

1011-

Deflection temperature underload/0.45MPa

ISO 75

oC

92

NA-

Deflection temperature underload/1.80MPa

ISO 75

oC

66

56-

* These are typical properties and are not be construed as specifications.

4Molding methods
Grade3D printing

Injection

Extrusion

Sheeting

VacuumBlow

Inflation

RSF038GoodGood

Good(Developing)(Developing)(Developing)(Developing)

3D Printing(FGF)

Traditional

Trend

Injection✓ Glasses frame✓ Screwdriver handle etc.

3D Printing(FGF)

Injection

3D Printing(filament)

5

Molding method for 3D printing applications✓ CAFBLO® is available a 3D printing applications of the melt stacking method using pellets(FGF),
which can print large scale sculptures.
✓ CAFBLO® is possible to design models that take advantage of transparency and second processing.
Fused Deposition Modeling(FGF)✓ Low-temperature,
low-shear stress✓ Resistant to drawdown✓ Low solidificationtemperature and goodfusion characteristics

Molding condition .ex【Grade】RSF038【Molding equipment】3m×3m×3m【Printing condition】
temperature：C1：200℃ / C2：210℃ / C3：210℃ / C4：210℃Nozzle(φ)：6mm
Speed：1.4m/min

CAFBLO®×FGF

CAFBLO®
【Features】✓ Transparency✓ Luxurious feel
✓ Adhesion✓ Polishability✓ Environmentallyfriendly material

Large-scale
sculptures6

Marine Disintegration and Biodegradation✓ CAFBLO® is highly biodegradable in seawater. It is made from Cellulose acetate, acetic acid andbiodegradable plasticizer mainly. These raw materials are biodegraded by microorganisms eventuallyconverted into water and carbon dioxide.

Marin disintegration

Test location ：Himeji, Hyogo Japan®
Test sample ：6mmΦ Straw (CAFBLO )Marine biodegradation test
Measurement laboratory: OWS
Compliant Standard: ASTM D6691
Culture temperature: 30℃
Reference item: Cellulose

7

Recycling properties【Grade：RSS025 】✓ CAFBLO® can be recycled multiple times.
✓ Although CAFBLO® is a biodegradable resin, there is little physical properties deterioration
during repeated molding compared to other biodegradable resins.
Daicel is working in activities collecting hotel amenities and reusing themin oyster farming pipes in Japan.
Cellulose Acetate Resin

Toothbrush(Amenities)

CAFBLO®
Cellulose Acetate

Cellulose✓ Productcollecting✓ Washing✓ Repellet

Oyster farmingpipes

Wood

Biodegradable to waterand carbon dioxide

RecyclingReusing【Graph：change of physical properties】✓ Molding condition

Cylinder temperature： 220℃
Drying time
： 80℃×3h over

✓ Reproduction condition
The injection molded test piece is 100% crushed and molded again after drying.(1 to 3 times)

8Antibacterial® holds high antibacterial activity against Staphylococcus aureus and Escherichia coil.
CAFBLOCAFBLO®
According the JIS Z 2801(ISO22196), antibacterial activity value 2.0 or more defines antibacterial effect.

Staphylococcus
aureusCAFBLO®

Escherichia coil

CAFBLO®

JIS Z 2801 (ISO22196)
Staphylococcus aureus

Staphylococcus
aureusEscherichia coil

Escherichia coil9

Molding Conditions
Pre-drying conditions®

◆Package for “CAFBLO ” is designed for moisture proof,as Cellulose Acetate Resin absorbs moisture.
However, “Pre-Drying” is a necessary step before molding.
®
(In molding, the coefficient of moisture absorption of “CAFBLO ” is about ≦ 0.3%)◆In case of insufficient drying, there will be some issues such as a degradation of mechanical properties
provoked by hydrolysis, Foaming (Bubbles) / Sliver Streak to molded products.
◆If a hot air circulation dryer is used, the conditions of “Pre-Drying” are1) To put CAFBLO® side the box-shaped container Pellet Layer ≦ 3cm2) To dry temperature at 80 ℃, for 3 – 5 hours3) Hopper dryer is recommended to prevent moisture absorption during molding work.
Chart for CAFBLO® Pellet Drying Curve
Pellet Moisture Content(%)

Drying Temperature

Drying Time (Hour)

10Injection molding method
Injection Molding Conditions◆Standard Injection Molding Conditions are as follows.
BackPressure(Mpa)

Molding
Temperature(℃)

NozzleFront

MiddleBack

Screw
Rotation
Speed(rpm)

RSS025220-240220-240200-220180-200

50-80

5-20

50-80

RSF208210-230210-230190-210180-200

50-80

5-20

40-60

RSF038210-230210-230190-210180-200

50-80

5-20

40-60

Temperature inside Cylinder(℃)

Grade*[Precaustion] In molding, a volatile gas is generated by mainly compounded ingredients.
Please take precaution for not inhaling the volatile gas to install a local exhaust ventilation.

11

Molding Conditions
Precautions for molding work®

◆Please do not retain “CAFBLO ” inside Cyliner for hours, to prevent the chemical
decomposition.
If molding work is stopped temporarily, please drain the resin from inside Cylinder,and keep the temperature inside Cylinder cooler.
◆If Molten Resin is injected rapidly in the cavity, the remaining air & gas are compressed andgenerated heat, which might cause burning/haze/pinhole to molded products.
In order to avoid these issues, please remove air and generated gas completely.
®

◆”CAFBLO ” contains of a few plasticizer, an air ventilation for molding facility is necessary.
Generally, the air vent is created by surrounding the cavity to make a shallow chase.
The air vent is located at a corner part where keeps some distance from the gate.
Please select mainly the weld line part, and drain it from the parting line in the mold.

CavityDepthAir
RunnerGate12

Flowability
Molding temperature and flow length【Molding condition】
Molding Temperature：50℃、Injection pressure：100MPa【Molding design】
width：20mm、thickness：2mm

Melt viscosity
Temperature：230℃
Capilary：L/D=10/2

1.E+05350

RSS025[Pa・s]

250
RSS025200

Melt viscosity

Flow length [mm]

300

ABS
150
100500215

220

225230

Molding temperature[℃]235

1.E+04

1.E+03

1.E+02

1.E+01
1.E-01

1.E+00

1.E+01

1.E+02

1.E+03Rate of shear[1/s]13

Molding shrinkage

GateMolding：120×120×2 mm
Fangate：9.5×2.0 mm
Cyliner tempareture ：220 ℃
Molding Temperature ：50 ℃
Injection speed：1.5 m/min
Injection pressure：60 MPa

Flow direction
Transverse direction

shrinkage
0.49%
0.80%

14＜GENERAL CONTACT INFORMATION＞
DAICEL CORPORATIONCAFBLO Business Strategy
E-mail ：cellp_marketing@jp.daicel.com
URL：https://www.daicel.com/cell_ac/en/