纺织学报 ›› 2019, Vol. 40 ›› Issue (02): 53-57.doi: 10.13475/j.fzxb.20181100405

• 纺织工程 • 上一篇    下一篇

集聚纱的分层结构与集聚机制

傅婷, 张玉泽, 王姜, 陈南梁()   

  1. 东华大学 纺织学院, 上海 201620
  • 收稿日期:2018-11-01 修回日期:2018-11-14 出版日期:2019-02-15 发布日期:2019-02-01
  • 通讯作者: 陈南梁
  • 作者简介:傅婷 (1980—),女,助理研究员。主要从事集聚纺纱方面的研究。
  • 基金资助:
    教育部科学技术研究重点(重大)项目(113037A)

Core structure and condensing mechanism of compact spun yarn

FU Ting, ZHANG Yuze, WANG Jiang, CHEN Nanliang()   

  1. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2018-11-01 Revised:2018-11-14 Online:2019-02-15 Published:2019-02-01
  • Contact: CHEN Nanliang

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摘要：

为解释集聚纺存在的附加捻度现象而与经典非自由端加捻理论相悖的问题,提出了集聚须条具有表层自由端纤维和主体非自由端纤维的分层结构。采用超景深三维数码显微镜观测集聚纱与环锭纱退捻后存在的差异,证明集聚区须条分层结构设想的合理性。对集聚区须条进行取样并在显微镜下观察发现,存在自由端纤维对非自由端纤维包缠加捻的现象。据此提出集聚纺半自由端加捻模型,即负压通过网格圈对主体非自由端纤维起到吸附作用,而负压与集聚槽配合使表层自由端纤维对主体纤维进行加捻作用,形成集聚须条的分层结构从而产生了附加捻度,为集聚机制的阐述提供理论依据。

关键词: 集聚纺, 半自由端加捻, 分层结构, 集聚机制

Abstract:

In order to explain the additional twist phenomenon of the compacted spinning and the contradiction with the classical non-open end twisting theory, the core structure of the open-end fibers and non-open-end fibers of the main body was proposed. The three-dimensional digital microscope was used to observe the structural differences between the compact spun yarn and the ring spun yarn after the untwisting, which indicated that the core structure of the fibers in the condensing area is reasonable. The fibers samples in the condensing area were observed using the microscope, and a phenomenon in which the non-open-end fibers were wrapped by the open- end fibers was found. Hereby, the semi-open end twisting model of the fibers in condensing zone was established, that is, the negative pressure acts on the non-open end fiber of the main body via the lattice apron, the negative pressure and the collecting groove in combination to apply the open end fibers twisting effect on the main fibers. The formation of the core structure of condensing fibers results in the additional twist, which provides a theoretical basis for the condensing mechanism..

Key words: compact spinning, semi-open end twisting, core structure, condensing mechanism

中图分类号: 

  • TS104.77

图1

集聚区须条分层结构示意图"

图2

集聚区须条半自由端加捻模型示意图"

图3

19.4 tex集聚纱退捻照片"

图4

环锭纱解捻后的形貌"

图5

集聚区须条的取样方法示意图"

图6

制作的样品实物照片"

图7

集聚斜槽5°集聚须条照片(×200)"

图8

集聚须条照片(放大200倍)"

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