Studies on Texturing of Polyester Viscose Spun Yarn by Simultaneous Setting of Both the Components

Abstract

91-94<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";color:black;mso-ansi-language:="" en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Texturing of polyester-viscose blended yarn has been accomplished through heat setting of polyester and crosslinking of viscose by a single-stage rapid cure technique. Two resins, Finish KVS new (Sandoz) (dimethylol dihydroxycthy1cne urea based resin with built-in catalyst) and resin U-4750(BASF) (a polyfunctional urethane resin) were used as crosslinking agents for setting the deformation. The efficiency of both the resins has been studied as a function of curing period, temperature and catalyst and resin concentrations. It is observed that a curing temperature of 210-220oC and a curing period of 30 see are optimum for both the resins. With lesser amount of resin <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:arial;color:black;="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">+ catalyst in the padding bath, KVS gives a stronger yarn than U-4750 resin for an equivalent crimp rigidity value.</span