PRODUCTION OF CELLULOSE ACETATE SLUB YARN

摘要

PROBLEM TO BE SOLVED: To obtain a cellulose acetate slub yarn in high spinning stability while preventing the breakage of yarn on a grooved take-up roll in the production of a cellulose acetate slub yarn using a grooved take-up roll. SOLUTION: A cellulose acetate slub yarn is produced by intermittently varying the take-up speed in the dry spinning of a cellulose acetate fiber using a grooved take-up roll having grooves on a part of the circumferential direction of the roll. The friction coefficient between the surface of the take-up roll and the fiber is set to <=0.5.