前牵伸区内纤维变速点分布对混纺纱成纱质量的影响
2021-09-06郭明华新金朱海荣缪正伟
郭明华 新金 朱海荣 缪正伟



摘要: 为探究细纱机前牵伸区内纤维的变速点分布与不同比例混纺纱线的成纱质量的关系,文章以纺R65/T35和T65/R35混纺纱在前区牵伸倍数为40、50、60为例,采用CCZ-X三罗拉双区牵伸细纱机进行实验,对比分析不同牵伸倍数下同一混纺纱纤维变速集中的位置,以及相同牵伸倍数下不同混纺纱的纤维变速集中的位置,从而探究牵伸区内纤维变速点分布对成纱质量的影响。结果表明,当牵伸倍数为50时,R65/T35和T65/R35在前牵伸区的纤维变速点更集中靠近前钳口,成纱条干更好;牵伸倍数为40倍时,T65/R35混纺纱的条干更优,牵伸倍数为50、60倍时,R65/T35混纺纱的条干更优。
关键词: 变速点分布;涤黏混纺纱;成纱质量;牵伸倍数;细纱;粗纱;前牵伸区
中图分类号: TS104.5
文献标志码: A
文章编号: 10017003(2021)08002805
引用页码: 081106
DOI: 10.3969/j.issn.1001-7003.2021.08.006(篇序)
Effect of fiber accelerated-point distribution in the front draft zone on the yarn quality of blended yarns
GUO Minghua1, LIU Xinjin1, ZHU Hairong2, MIAO Zhengwei2
(1.Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China;2.Jiangsu Haite Fashion Co., Ltd., Wuxi 214122, China)
Abstract: To investigate the relationship between the distribution of fiber accelerated points in the front draft zone of the spinning frame and the yarn quality of the blended yarns with different proportions, this paper conducts an experiment by taking spinning R65/T35 and T65/R35 blended yarns with 40, 50 and 60 draft multiple of front draft zone as examples, using CCZ-X three-roller double-zone drafting spinning frame. Through a comparative analysis of the same blended yarn fiber accelerated location under different drafting multiples and the concentrated position of the spinning fiber speed of different blended yarns is accelerated under the same draft ratio, this paper explores the influence of the fiber accelerated point distribution in the draft zone on the yarn quality. The results reveal that with 50 draft multiples of the front zone, the fiber accelerated point of both R65/T35 and T65/R35 are more intensively closer to the front jaw, and the yarn levelness is better; with 40 draft multiples of the front zone, the yearn levelness of T65/R35 blended yarn is better, with 50 or 60 draft multiples of the front zone, the yearn levelness of R65/T35 blended yarn is better.
Key words: accelerated point distribution; polyester and viscose blended yarn; yarn quality; draft multiple; spun yarn; rough yarn; front draft zone
收稿日期: 20210115;
修回日期: 20210712
基金項目:
作者简介: 郭明华(1997),女,硕士研究生,研究方向为新型纺纱技术。通信作者:刘新金,副教授,liuxinjin2006@163.com。
涤黏混纺纱在人们的日常生活中运用广泛,而要获得优良的涤黏混纺纱[1-3],需要研究纱线的性能等特点,以及纺纱工序对成纱质量的影响。细纱牵伸区中牵伸倍数、纤维性能、纤维数量及其变速点分布、摩擦力界等与纱线质量有关,其中纤维变速点的分布与纱线的质量有着密不可分的关系[4]。研究牵伸区中纤维变速点分布,对于细纱机牵伸机构中生产工艺参数的优化设计、牵伸区中纤维控制的加强都具有重要的经济意义和现实意义[5]。
目前,有学者采用粗纱截面染色法对牵伸区纤维进行追踪、基于抛物线密度函数族的浮游纤维变速规律用Montecarulo方法随机模拟、通过对牵伸区浮游纤维的受力分析用计算机技术模拟与仿真等研究纤维变速点分布[6]。……
