METHOD FOR PRODUCING SPLIT FIBER TYPE POLYESTER MONOFILAMENT CRIMPED YARN AND WOVEN OR KNITTED FABRIC

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a split fiber type polyester monofilament crimped yarn that is highly crimped and is excellent in splittability.;SOLUTION: The method for producing a split fiber type polyester monofilament crimped yarn includes: drawing a polyester highly-oriented undrawn yarn comprising an easily alkali-soluble polyester component and a hardly alkali-soluble polyester component from a delivery roller at a yarn speed of 80-150 m/min. while drawing and false-twisting it using a pin type false-twisting tool under conditions of a temperature of 150-200°C, a draw ratio of 1.5-1.7 times, and a false twist coefficient of 20000-30000 to obtain a split fiber type polyester multifilament crimped yarn; and subjecting the split fiber type polyester multifilament crimped yarn to a filament separation.;COPYRIGHT: (C)2015,JPO&INPIT