Production technology of low-twist yarn

A production process and twisted yarn technology, which is applied in the field of low-twisted yarn production process, can solve problems such as deterioration of quality indicators, increase in weaving end breaks, and difficulty in spinning, so as to reduce energy consumption, save dyes and sizing materials, The effect of internal stress reduction

Inactive Publication Date: 2019-01-29
ZHONGHUA GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a production process for low-twist yarns, which can solve the problems of increased weaving end breaks, deterioration of quality indicators, and spinning difficulties caused by the reduction of yarn twist in the prior art. question

Method used

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Embodiment Construction

[0016] The specific implementation manners of the present invention will be further described below.

[0017] The invention provides a production process for low-twist yarns, which mainly includes a cotton selection process, a pre-spinning process and a post-spinning process, specifically:

[0018] In the cotton selection process, when selecting cotton, the indicators such as fiber fineness, fiber length and uniformity are given priority. Compared with spinning yarns with normal twist, the fiber fineness of the low-twist yarn of the present invention needs to be finer when blending cotton, thereby increasing the number of fibers in the cross-section of the yarn and improving the cohesion of the fibers. Therefore, after the yarn twist is reduced, the cohesion between fibers will not be greatly reduced, the yarn breakage will be reduced during the spinning process, and the yarn strength can be ensured. Similarly, in terms of fiber length and uniformity, raw cotton with long fib...

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PUM

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Abstract

The invention discloses a production technology of low-twist yarn. The production technology comprises the steps of cotton selection, fore-spinning and post-spinning, wherein the fore-spinning processcomprises the steps of blowing, carding, drawing and roving, and the post-spinning process comprises the steps of spinning and winding. According to the production technology of the low-twist yarn, through selection control on raw materials, optimized configuration on the fore-spinning process, false twist treatment on the spinning step and vacuum low-temperature steam yarn shaping treatment on yarn fruits, the problems of more broken ends in weaving, deterioration of quality indicators, difficulty in spinning and the like caused by reduction of yarn twist in the prior art can be effectivelysolved.

Description

technical field [0001] The invention relates to a production process of low-twisted yarn, which belongs to the field of spinning and manufacturing. Background technique [0002] Along with the raising of living standard, people are also more and more higher to the requirement of the wearing comfort of clothing. Among them, the pursuit of "softness" of fabrics is a major theme. In order to achieve "softness", in addition to the commonly used softening treatment for fabrics, the industry also puts forward new requirements for yarn twist: use yarns with as low twist as possible to obtain fabrics with good "softness" . Usually, the twist coefficient of cotton yarn for knitting is 280-360, and the twist coefficient of cotton yarn for weaving is 290-430. When the twist coefficient of cotton yarn is lower than 280, it is a special low-twist yarn. According to the current In the ring spinning process, the dynamic strength of the low-twist yarn drops sharply in the spinning sectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/26
CPCD02G3/26
Inventor 易升水李迎辉钟连强凌海娟
Owner ZHONGHUA GRP
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