Studies on Simultaneously Draw-Textured Polyethylene Terephthalate Slit Film Yarn

Abstract

<span style="font-size:11.0pt;line-height:115%; font-family:" calibri","sans-serif";mso-ascii-theme-font:minor-latin;mso-fareast-font-family:="" "times="" new="" roman";mso-fareast-theme-font:minor-fareast;mso-hansi-theme-font:="" minor-latin;mso-bidi-font-family:"times="" roman";mso-ansi-language:en-us;="" mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Polyethylene terephthalate slit film yarn, which was crystalline and partially oriented, was simultaneously draw-textured on a spindle false-twist texturing machine under standard conditions of texturing at three different draw ratios. The textured samples were heat-set in hot water. The extent of stretch imparted to the yarn during texturing has a considerable influence on the crimp retraction characteristics; higher stretch results in lower crimp retraction, but improved crimp stability. The strength of the textured yarn with higher stretch is also higher. A stretch of 100% results in a textured yarn with acceptable characteristics.</span>