Analysis of the production process of 218dtex/96f"convex"shape untwisted linen-like DTY
This article studies the production process of 218DTEX/96F"convex"shaped untwisted linen DTY.Af-ter being filtered by a filter and cooled to 285 ℃ through a melt cooler,the melt is pressurized and transported from polymerization to spinning.After passing through the spinning box and metering pump,it enters the spinning com-ponent and is extruded from the"convex"shaped spinneret hole.After good ring blowing cooling,the process con-ditions such as POY elongation index and oiling index are optimized,and the optimization of false twist elongation ratio,speed ratio,false twist ring service cycle,and hot box temperature are explored.The research results indi-cate that when the false twisting processing speed is 650 m/min,the draft ratio is 1.60,the speed ratio is 1.55,and the first hot box temperature is 185 ℃,the processing condition is good,the product quality is stable,the pro-portion of yarn and stiff yarn is low,and its physical indicators can meet the weaving needs of customers.
Convex shapeImitation hempDTYTechnological explorationDyeing M rate
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NSTL
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