Influence of controlled pretension of the core on the hairiness of cotton-nylon core-spun 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:="" "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"="">Core-spun yarns from monofilament nylon core and J-34 cotton sheath were prepared at different twist multipliers under the controlled pretension of the core keeping double rove feeding, filament disposition, spindle speed and traveller count unchanged. Hairiness of these yarns was studied and compared with that of the equivalent 100% cotton ring-spun yarns, prepared under identical conditions at the corresponding TM levels. The nature of hairs of the two types of yarn was studied in terms of protruding ends and loops. Cotton-nylon core-spun yarns showed less number of ends and loops than equivalent 100%cotton ring-spun yarns. The distribution of loops with respect to different intersecting lengths was exponential in character in both types of yarn.</span>