Response of polyester-viscose jet-spun yarns to repeated extension

217-222<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"="">The response of polyester-viscose jet-spun yarns to the repeated extension has been studied by varying fibre composition, yarn linear density and first jet pressure. The observations reveal that repeated extension causes deterioration in yarn mechanical properties to various degrees, depending mainly on processing factors and test parameters.