聚酯POY和DTY的结构性能比较分析

Comparative analysis of structural properties of PET POY and DTY

聚酯长丝的结构性能主要取决于纱线类型、长丝细度和形状等被认为对变形程度不利的因素。拉伸比、加热器温度和后纺工序等决定了长丝的性质及其适用性。研究旨在确定聚酯部分取向丝(POY)和拉伸变形丝(DTY)之间的结构差异。在标准设置的拉伸变形机上加工线密度为160dtex/144f的POY卷装,并对其进行强度、伸长率和沸水收缩率测试。将成本低且强度高的扁平长丝结构纱线喂入拉伸变形机,使其转变为具有卷曲/蓬松纱线结构的纱线。所有试样均显示出良好的卷曲性能。新设计的拉伸变形花式纱线将可赋予服用纺织品和家居装饰织物以较高的附加值,并增加其舒适感。

Structural properties of PET filament largely depend on several factors such as yarn types,filament fineness and shapes etc.which are the detri-mental factors considered for the extent of deformations.The draw ratio,heater temperature and post spinning operations decide the nature of the filament and its applicability.This work was carried out to determine the structural difference between partially oriented yarn(POY)and draw-textured yarn(DTY).For both the types,PET was considered to be the base material.The manufactured POY package was processed on draw-textured machine with standard settings,processed POY denier was 160 dtex/144 fand it was observed for the testing of tenacity,elongation and boiling water shrinkage.Favorable transformation of cheaper and stronger flat filament feeder yarn structure to favorable crimpy/bulky yarn structure was an added gain of this production process.All the samples also showed good crimp associated properties.Thus newly designed draw-textured fancy yarn will add considerable value along with added comfort to apparel textiles as well as home furnishing.