CTD 261 Lecture Notes - Lecture 10: Xanthate, Carbon Disulfide, Viscose

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

Document Summary

Amount of petrochemicals used for fiber production. Manufactured regenerated fibers are produced from naturally occurring polymers of cellulose or protein, but processing is needed to convert them to fiber form. Manufactured regenerated fibers: from naturally occurring polymers; regenerated fibers. Rayon: first (cid:373)a(cid:374)ufa(cid:272)tured fi(cid:271)er, produ(cid:272)tio(cid:374) (cid:271)ega(cid:374) i(cid:374) fra(cid:374)(cid:272)e i(cid:374) (cid:1005)(cid:1012)(cid:1013)(cid:1004), (cid:862)chardo(cid:374)(cid:374)et ilk(cid:863) (cid:449)as name given to fiber, be(cid:373)(cid:271)erg pro(cid:272)ess i(cid:374)trodu(cid:272)ed i(cid:374) late (cid:1005)(cid:1012)(cid:1013)(cid:1004)"s vis(cid:272)ose pro(cid:272)ess i(cid:374)troduced around 1900. Us produ(cid:272)tio(cid:374) (cid:271)ega(cid:374) i(cid:374) (cid:1005)(cid:1013)(cid:1005)(cid:1004), i(cid:374) mar(cid:272)us hook, pe(cid:374)(cid:374)syl(cid:448)a(cid:374)ia. World"s leadi(cid:374)g produ(cid:272)er today are toray (japan), lenzing (austria), and courtaulds (great britain: 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. Manufactured fiber of regenerated cellulose in which substitutes have replaced not more than 15 percent of the hydrogens of the hydroxyl group.