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Study on Gathering-and-twisting Mechanism of Fibers and CMC-Na/PAM/PVA Solution Optimization for Enhancing Cotton Yarn Performance by Adhesive-aided Ring Spinning
Fibers and Polymers ( IF 2.5 ) Pub Date : 2021-07-21 , DOI: 10.1007/s12221-021-0383-5
Peiying Li 1 , Mingrui Guo 1 , Fengxin Sun 1 , Jiajia Fu 1 , Weidong Gao 1
Affiliation  

In order to understand the effect of the adhesive-aided ring spinning (AARS) on improving yarn performance, the relative movement of fibers on the fibrous strand through AARS-II during spinning process was studied to deduce a gathering-and-twisting mechanism of fibers. Taking advantage of the adhesion effect, adhesive solution can form a gathering to the fibers on the surface of fibrous strand. Thus, fiber ends protruding out of the fibrous strand can stick on yarn body and be twisted into the fibrous strand based on a twist stop coming from the contact during spinning process. Sodium carboxymethyl cellulose (CMC-Na), polyacrylamide (PAM) and polyvinyl alcohol (PVA) were used as adhesives in the AARS. Yarn hairiness, tensile property, abrasion resistance and yarn evenness of AARS yarns were compared and analyzed to obtain optimal concentration ranges of adhesive. Central composite design was adopted to achieve optimal match of compound adhesive solution and yarn performance. Overall, the results indicate that compound solution with CMC-Na concentration of 5.46 ‰, PAM concentration of 0.16 ‰ and PVA concentration of 0.44 ‰ will achieve a 89.6 % of reduction in harmful hairiness, a 28.5 % of growth in breaking strength and a 50.6 % of growth in abrasion resistance.



中文翻译:

助粘剂环锭纺提高棉纱性能的纤维集捻机理及CMC-Na/PAM/PVA溶液优化研究

为了解助粘环锭纺纱(AARS)对提高纱线性能的影响,研究了纺纱过程中纤维通过AARS-II在纤维原丝上的相对运动,以推导出纤维的聚捻机制。 . 利用粘合作用,粘合剂溶液可以在纤维束表面对纤维形成聚集。因此,从纤维股伸出的纤维端部会粘在纱体上,并基于纺纱过程中来自接触的捻止器被加捻到纤维股中。羧甲基纤维素钠 (CMC-Na)、聚丙烯酰胺 (PAM) 和聚乙烯醇 (PVA) 用作 AARS 中的粘合剂。纱线毛羽、拉伸性能、AARS 纱线的耐磨性和纱线均匀度进行了比较和分析,以获得最佳的粘合剂浓度范围。采用中心复合设计,实现复合粘合剂溶液与纱线性能的最佳匹配。总体而言,结果表明,CMC-Na浓度为5.46‰、PAM浓度为0.16‰、PVA浓度为0.44‰的复合溶液将实现有害毛羽减少89.6%,断裂强度增长28.5%和50.6%。耐磨性增长的百分比。

更新日期:2021-07-22
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