The technical parameters of acetate fiber tow mainly include the following aspects:
Specification parameters:
Single fiber line density: Common specifications include 3.33dtex, 3.44dtex, 3.78dtex, etc.
Tow total line density: Common specifications include 3.1ktex, 3.4ktex, 3.5ktex, etc.
Single fiber cross-sectional shape: Common shapes include round, triangular, etc.
Physical properties:
Absorption resistance: The absorption resistance range of acetate fiber tow is relatively wide, for example, 24.00pa is equivalent to 2550~2942mmH2O, 24.10pa is equivalent to 2501~2893mmH2O, etc.
Elasticity: It has good elasticity and is suitable for the production of cigarette filters.
Thermal stability: It has good thermal stability and can maintain stable performance under high temperature environment.
Chemical properties:
Acid and alkali resistance: Acetate fiber bundles have certain acid and alkali resistance and can remain stable in weak acid and weak alkali environments, but are not resistant to strong acids and alkalis.
Hydrolysis: Hydrolysis will occur under concentrated acid conditions.
Production process:
Pulp preparation: Natural wood pulp is chemically treated to prepare pulp.
Filtration: The pulp is converted into fiber bundles through the filtration process.
Spinning: The pulp is spun into fiber bundles through a spinning machine.
Curling and drying: The spun bundles are curled and dried.
Swinging and packing: The treated bundles are swinging and packing.