CTD 215 Lecture Notes - Lecture 7: Marcus Hook, Pennsylvania, Lyocell, Cellulose Acetate

• School: University of Alabama
• Department: Clothing, Textiles and Interior Design
• Course: CTD 215
• Professor: Dr.Thompson

Document Summary

Identifications of regenerated fibers: manufactured regenerated fibers: from naturally occurring polymers; regenerated fibers, cellulosic: rayon, lyocell, and acetate, protein: azlon. Silk(cid:499) was the name given to the fiber: bemberg process introduced in later (cid:883)(cid:890)(cid:891)(cid:882)"s, viscose process introduced, u. s. production began in 1910, in marcus hook, pennsylvania. World"s leading producer today are toray (japan), lenzing (austria) and courtaulds (great britain) . around 1900: rayon is regenerated cellulose; starting material is purified, bleached wood pulp. The cellulose derivative is decomposed by the acid in the bath and cellulose is regenerated, as continuous filaments: these filaments are stretched, washed and dried, then either packaged as continuous filament material or chopped into short staple fibers. Chemical composition and molecular arrangement of rayon: rayon: manufactured fiber of regenerated cellulose in which substitutes have replaced not more than 15% of the hydrogens of he hydroxyl groups.