Polyester textured yarn fabricated spun-like filament by rotor twister

Abstract

A novel rotor twister has been used to fabricate a spun-like filament yarn using a draw-textured yarn (DTY) as core yarn and a partially oriented yarn (POY) as wrapping yarn. During twisting, the core yarn passes through a pair of grinding wheels to cause hairiness. The effects of rotor speed, twist multiplier, number of grinding wheels and counts of DTY on

tenacity, elongation and hairiness have been studied. It is observed that the decrease in the number of grinding wheels increases the hairiness but decreases the tenacity and elongation. The twist multiplier affects neither the tenacity nor the elongation but the increase in twist multiplier increases the hairiness. The increase in rotor speed increases the tenacity and

elongation but decreases the hairiness. With a twist multiplier o f 1.4, rotor speed of 8000 rpm and grinding wheels of (60# + 120#), the filament yarn excellently imitates spun yarn.