Properties of man-made fibre yarns spun on DREF-3 spinning system

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"="">To explore the potentialities of the DREF-3 friction spinning system for processing man-made fibres. 6s and 12s yarns were produced from 100% polyester, 100% viscose, polyester/cotton and polyester/viscose blends. The properties of these yarns were studied and compared with those of the equivalent rotor- and rings-pun yarns. The results indicate that the ring yarns from 100% viscose and 100% polyester are stronger than the corresponding DREF and rotor yarns by about 8% and 50% respectively. In polyester/viscose blended yarns, as the polyester content increases from 52% to 70%, yarn breaking strength increases by about 65%, but unevenness and imperfections do not show any significant improvement.</span>