THE PRACTICE OF ACRYLIC SIROSPUN YARN ON THE SEMI WORSTED SPINNING FRAME  

作　　者：魏幼平 

机构地区：[1]Department of Textile Industries of the University of Leeds,UK

出　　处：《Journal of China Textile University(English Edition)》1993年第4期71-80,共10页

摘　　要：The technique of sirospun process is applied on a modified semi-worsted balloonless spinningframe to investigate the effect of spindle-speed,yarn-twist and strand-spacing on yarn properties.Yarn breaking strength,breaking extension,evenness and imperfection are examined on the basisof CCD experimental design.Yarn hairiness is particularly concerned,being found that all spinningparameters tested have significant effects on hairiness and that the minimum number of hairs oc-curs at the strand-spacing of 14.4 mm.Compared to conventional single spun yarn,experimentshave revealed the greatest advantage of using sirospun process is that all sirospun yarns have muchless hairiness.A new sirospun yarn fault,so called“loop”,has also been examined.The most likely cause forthis yarn fault is the strand-tension unbalance between the two strands when low tension spinningis applied.Further analysis and some initial tests have been carried out in the hope of overcomingthis loop fault which is an important obstacle to the application of balloonless spinning.The technique of sirospun process is applied on a modified semi-worsted balloonless spinning frame to investigate the effect of spindle-speed,yarn-twist and strand-spacing on yarn properties. Yarn breaking strength,breaking extension,evenness and imperfection are examined on the basis of CCD experimental design.Yarn hairiness is particularly concerned,being found that all spinning parameters tested have significant effects on hairiness and that the minimum number of hairs oc- curs at the strand-spacing of 14.4 mm.Compared to conventional single spun yarn,experiments have revealed the greatest advantage of using sirospun process is that all sirospun yarns have much less hairiness. A new sirospun yarn fault,so called“loop”,has also been examined.The most likely cause for this yarn fault is the strand-tension unbalance between the two strands when low tension spinning is applied.Further analysis and some initial tests have been carried out in the hope of overcoming this loop fault which is an important obstacle to the application of balloonless spinning.

关 键 词：ring FRAME balloonless SPINNING SIROSPUN process strand-spacing YARN hairness YARN loop 

分 类 号：N[自然科学总论]