PROCESS OF PRODUCING PET POY MULTI-TWISTED YARN AND YARN PRODUCED THEREBY

摘要

One pet (polyethylene terephthalate) POY (partially oriented yarn) distorts conjugated yarn, and manufacturing method is arranged to the strength and elongation for reducing the variation for making it interweave of conjugated yarn and improving conjugated yarn, increases the contraction of conjugated yarn. (4') two kinds of pet POY yarns suedes pass through a first feed roller (4) and the second feed roller respectively. Pet POY yarns suede in the 180-220 degrees Celsius of temperature by a first heater (5) be it is hot worked, it is cooling to pass through a buck (6). Cooling pet POY yarn suedes are twisted at 1. by a twisting unit6-1.9 yarn speed ratio comprising two or more pairs of frictional disks. Twisted pet POY yarns suede is between first feed roller by a speed difference 1.5-1.7 draw ratio is drawn or the second feed roller and third feed roller (8). The pet POY yarn suedes of stretching are switched on, hot worked by an after-heater (10). Pet POY yarn suedes are by oil processing, wound on the yarn speed m/min of 500-600.