文章基本信息

标题：Analysis of Fiber Drawing in Wet Spinning for Surface Roughness
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作者：Yuta Fukui ; Tatsuya Teramua ; Tomoyuki Yoshimi 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2021
卷号：333
页码：1-4
DOI：10.1051/matecconf/202133311006
语种：English
出版社：EDP Sciences
摘要：The drawing process behavior was investigated with focus on fiber stretching speed (spinning acceleration) to improve luster quality of fibers. Wet spinning method has a limitation of low luster at high spinning speed. It was determined that (1) luster quality could be evaluated by arithmetic average (RΔa) of fibers, which indicated the roughness, and (2) the roughness of the fiber was related to the spinning acceleration through the analysis ofRΔa. Spinning acceleration was measured by chasing markers that were used to tie fibers. Regardless of the length of spinning bath, fibers were mainly stretched during the first stretching stage. Therefore, a multistep drawing method was used. In the case where the drawing ratio was 220% by one-step,RΔawas 10.1°; however by multi-step drawing (1stand 2nddrawing ratios were 148.3%),RΔadecreased to 8.3°. The multi-step drawing method enabled the reduction in fiber roughness by preventing a sudden change in fiber stress. In addition, high temperatures improved the fiber roughness. At high temperatures, roughness decreased despite the high acceleration because the fiber was easier to stretch than at low temperatures.