自捻纱的捻度分布特征分析  

Analysis of twist distribution characteristics of self-twist yarns

作　　者：崔红[1,2] 肖志永[2] 郁崇文[1] 

机构地区：[1]东华大学纺织学院,上海201620 [2]天津宏大纺织机械有限公司,天津300241

出　　处：《纺织学报》2012年第8期40-45,共6页Journal of Textile Research

基　　金：上海市曙光跟踪项目(10GG17)

摘　　要：重点讨论了同相纱和相位纱的捻度结构特征以及2种自捻纱线的性能差异。从自捻纱线的结构特征来看,自捻纱线1个周期长度上存在3种纱段:有捻有捻纱段、有捻无捻纱段和无捻无捻纱段。相位差的存在就是使得无捻无捻纱段的长度减小。相位差的大小c值接近或等于无捻区长度b值时,使得无捻无捻纱段长度最小,所形成自捻纱线均为有捻有捻纱段和有捻无捻纱段,是自捻纱线结构中性能最好的纱段。实纺相位纱和同相纱的性能比较结果表明,相位差c值约等于无捻区长度b值时,自捻纱线强度和伸长性能较好。This paper mainly discussed the twist structures of two self-twist yarns--in-phase yarn and phase yarn and performance difference between the two. In terms of the twist structures, there are three kinds of yarn zones： the twisted-twisted zone, twisted-untwisted zone, and untwisted-untwisted zone in one cycle length of self-twist yarn. The existence of phase difference makes the length of untwisted- untwisted zone decreased. When the phase difference （value c） is close or equal to the length of the untwisted zone （value b） , the length of untwisted-untwisted zone becomes minimal so that the formed self-twist yarn consists of the best zones in the twist structure of self-twist yarn ： twisted-twisted zone, and twisted-untwisted zone. The test results of the spun in-phase and phase self-twist yarns indicate that when value c = b, the spun self-twist yarn has better strength and elongation property.

关 键 词：自捻 捻度分布 同相 相位 搓捻 

分 类 号：TS134.7[轻工技术与工程—纺织材料与纺织品设计]