CTD 261 Lecture 11: End of Chapter 7

• School: University of Alabama
• Department: Clothing, Textiles and Interior Design
• Course: CTD 261
• Professor: Amanda Thompson

Document Summary

Acetate and triacetate fibers are modified cellulosic fibers. Production of acetate began in england around 1917, and production of triacetate began in us. In 1954 hoechst-celanese was the us leading acetate producer. In 2000 this company was called kosa. Starting material is purified bleached wood pulp. It is reacted with acetic acid (concentrated vinegar) to form a material which is soluble in acetone, in the case of acetate, or in other solvents, in the case of triacetate. Amount of acetic acid (ch3 cooh) used determines whether you get. Acetate fiber (first developed in 1924) few oh groups. Triacetate fiber (first developed in 1950) no oh. In both, the hydroxyl groups in cellulose are replaced by acetyl (ch3coo) groups. The difference between the two is in the extent to which this replacement takes place. Manufactured fiber in which the fiber forming substance is cellulose acetate.