The working principle of acetate fiber tow mainly includes the following steps:
Raw material processing: The main raw material of acetate fiber tow is cellulose, which can come from natural plant fibers such as mosir bamboo, wood bamboo, hemp bamboo, etc., or from artificial cellulose or polyester fibers. First, the cellulose raw material is crushed, then mixed with starch acetate, and sol-treated.
Esterification reaction: Cellulose and acetic acid or acetic anhydride undergo esterification reaction under the action of a catalyst to form cellulose acetate. In this process, the hydroxyl groups in the cellulose molecules are esterified with acetate to form a thermoplastic resin.
Spinning: The sol solution is injected into the cellulose drawing machine, and it is formed into a slender fiber bundle through stretching, heating and other process processes. Dry spinning technology is usually used in the spinning process, and the winding speed is maintained at 500 to 700 meters/minute.
Performance characteristics: Acetate fiber tow has the advantages of natural fiber and chemical fiber, such as delicate taste, soft feel, good water absorption and air permeability. In addition, it also has multiple functions such as dustproof, antibacterial, antistatic, etc.
Application field: Acetate fiber tow is widely used in the production of various fiber products, such as high-end fabrics, fabrics, handicrafts, wipes, cleaning cloths, etc. It plays a good role in these products. Water absorption, heat preservation, air permeability and other properties, enhance the applicability of the product.