JOURNAL OF TEXTILE RESEARCH ›› 2017, Vol. 38 ›› Issue (02): 99-105.doi: 10.13475/J.fzxb.20161003607

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Influence of composite yarn's structures on yarn strength efficiency

  

  • Received:2016-10-17 Revised:2016-11-03 Online:2017-02-15 Published:2017-02-27

Abstract:

Yarn strength efficiency is one of the indexes whether the performance of raw materials is fully utilized. On the premise of unchanging the material, adapting a new spinning means to adjust yarn structure is one of the ways to improve its strength efficiency. This paper studied the strength efficiencies of single yarn, plied yarn and wrapped yarn. The theoretical model can depict the single-yarn strength efficiency coefficients of the three yarns under different twist factors. The single yarn and plied yarn are spun on ring spinning frame, and the wrapped yarn is spun on fancy twisting frame. Considering the growth of yarn linear density and twist factor caused by twisting, the single-yarn strength coefficients are used for comparison. The results are similar to the theoretical prediction. Therefore, the model can be used to quantitatively determine the change trends of strength efficiency coefficients, which can be applied to find optimum twisting parameter before spinning, and play a guiding role in production practices.

Key words: strength efficiency, strength efficiency coefficient, model, yarn structure, single yarn, plied yarn, wrapped yarn

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