Characteristics of acrylic-cotton yarns produced on ring and rotor spinning systems

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:calibri;mso-bidi-theme-font:minor-latin;="" mso-ansi-language:en-us;mso-fareast-language:en-us;mso-bidi-language:ar-sa"="">Acrylic-cotton rotor-spun yarns are substantially weaker, more even and extensible, and have lower abrasion resistance than the equivalent ring-spun yarns. The difference in tenacity of ring- and rotor-spun yarns is much less for coarse yarns. An increase in twist factor significantly increases the abrasion resistance of rotor yarns. However, with 70: 30 acrylic- cotton ring yarns, the abrasion resistance does not show any change with increasing twist factor. Acrylic content in the fibre mix should be more than 50% for improvement in yarn characteristics.</span>