Product Features
Physical Properties
Hygroscopicity: 6%-7% moisture regain, better than synthetic fibers.
Thermoplasticity: 160-200℃ can be thermally bonded, suitable for non-woven fabric processing.
Filtration efficiency: tar and particulate matter interception rate ≥35% (cigarette filter standard).
Chemical stability
Resistant to weak acids and alkalis, not resistant to strong alkalis (such as sodium hydroxide solution).
Environmental advantages
Biodegradable (decomposed in 1-3 years under natural conditions), replacing non-degradable polypropylene fibers.
Production process
Raw material preparation
Purification of wood pulp to remove impurities such as lignin and hemicellulose.
01
Acetylation reaction
Cellulose acetate is produced under the action of acetic anhydride and catalyst.
02
Spinning molding
Dry spinning: dissolve acetate in acetone, extrude through a spinneret, and then the solvent evaporates and solidifies.
Wet spinning: use other solvents (such as dichloromethane) and form in a coagulation bath.
03
Post-processing
Twist, curl, cut the yarn bundle, and adjust the single yarn denier (usually 1.5-8.0 Denier).
04
Application Areas
Tobacco industry (core application)
Cigarette filters account for more than 80% of global acetate tow consumption
01
Textile industry
Blended with cotton and silk to make high-end shirts and dresses (such as triacetate fabrics)
02
Medical and health materials
Surgical sutures, dialysis membrane materials, using their biocompatibility
03
Industrial field
Battery separator, liquid crystal display polarizer substrate.
04
Functional advantages
High-efficiency filtration performance
Cigarette filter: The interception rate of tar and nicotine is ≥35%, while maintaining good air permeability.
Air/liquid filtration: Ultra-fine denier tow is used for PM2.5 filter membrane and the middle layer of medical masks.
High-efficiency filtration performance
Cigarette filter: The interception rate of tar and nicotine is ≥35%, while maintaining good air permeability.
Air/liquid filtration: Ultra-fine denier tow is used for PM2.5 filter membrane and the middle layer of medical masks.
Antistatic property: The fiber surface resistance is low, dust is not easily absorbed, and it is suitable for high cleanliness environments (such as dust-free cloths in the electronics industry)
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