Physical and mechanical properties of cotton covered nylon core yarns

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:="" calibri;mso-fareast-theme-font:minor-latin;mso-hansi-theme-font:minor-latin;="" mso-bidi-font-family:"times="" new="" roman";mso-ansi-language:en-us;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="">The physical and mechanical properties of simple core-spun yarns, produced from cotton sheath and monofilament nylon core on a modified ring spinning frame under three different pretensioning conditions of the core, are described and compared with those of the equivalent 100% cotton ring-spun yarns. The yarns having about 8% nylon content as core show unique characteristic change in yarn strength and higher extensibility compared to equivalent 100% cotton ring-spun yarns. Marked improvement is observed in the packing coefficient with better core coverage, yarn toughness and abrasion resistance.</span>