Influence of Carding Conditions on Rotor Spinning Performance and Yarn Quality

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"="">The influence of card production rate on the performance of open-end (OE) machine and yarn quality was studied by using two low-grade trashy cottons and a waste mixing containing a high proportion of noil. A lower card production rate improved card cleaning efficiency, reduced trash level in sliver, achieved better nep removal efficiency and brought down the opening roller waste on OE machine. Lower card production rate also showed 55% reduction in end-breakage rate in an OE machine, marked improvements in OE yarn strength, evenness and incidence of Uster Classimat faults, particularly the very short thick, long thick, and long thin types.</span>