Spun rayon yarn production technology

A production process, cotton yarn technology, applied in the direction of single-component cellulose rayon, fiber chemical characteristics, feeding solution to the spinneret, etc., can solve the problems of cumbersome production process steps and low yield of rayon yarn, and achieve improvement Effects of gel filamentation rate, improvement of utilization rate and reduction of esterification degree

Inactive Publication Date: 2020-01-03
徐州锦业纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rayon yarn is mainly a substitute for cotton. It is a kind of fiber extracted from weaving plants and processed by special technology. It has good luster and delicate hand feeling. Naturally, there is no doubt about the use of the fabric. Rayon yarn is used in various clothing As well as the processing of decoration, it has played a vital role in promoting the development of my country's garment industry; rayon yarn is currently made by wet method, but the existing rayon yarn production process steps are cumbersome and the yield is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: A production process of rayon yarn, the production process includes the following steps in sequence: 1) stock solution preparation, 2) pre-spinning preparation, 3), spinning forming, 4), post-treatment, wherein the raw material preparation is : Use natural cellulose as raw material, extract pure α-cellulose from cellulose raw material, treat with caustic soda and carbon disulfide to obtain orange-yellow cellulose xanthate sodium, and then dissolve it in dilute sodium hydroxide solution to make Viscose; pre-spinning preparation: filter, ripen, and defoam the viscose prepared in the preparation of raw materials, wherein the ripening treatment is to place the viscose in an environment of 40°C for 20 hours to reduce the cellulose xanthate Degree of esterification; spinning forming is to put the viscose that has been filtered, matured and defoamed into the spinning box and stir, and then control the flow of viscose through the metering pump. The viscose is filte...

Embodiment 2

[0021] Embodiment 2: A production process of rayon yarn, the production process includes the following steps in sequence: 1) stock solution preparation, 2) pre-spinning preparation, 3), spinning forming, 4), post-processing, wherein the raw material preparation is : Use natural cellulose as raw material, extract pure α-cellulose from cellulose raw material, treat with caustic soda and carbon disulfide to obtain orange-yellow cellulose xanthate sodium, and then dissolve it in dilute sodium hydroxide solution to make Viscose; pre-spinning preparation: filter, ripen, and defoam the viscose prepared in the preparation of raw materials, wherein the ripening treatment is to place the viscose in an environment of 50°C for 25 hours to reduce the cellulose xanthate Degree of esterification; spinning forming is to put the viscose that has been filtered, matured and defoamed into the spinning box and stir, and then control the flow of viscose through the metering pump. The viscose is filt...

Embodiment 3

[0025] Embodiment 3: A production process of rayon yarn, the production process includes the following steps in sequence: 1) stock solution preparation, 2) pre-spinning preparation, 3), spinning forming, 4), post-processing, wherein the raw material preparation is : Use natural cellulose as raw material, extract pure α-cellulose from cellulose raw material, treat with caustic soda and carbon disulfide to obtain orange-yellow cellulose xanthate sodium, and then dissolve it in dilute sodium hydroxide solution to make Viscose; pre-spinning preparation: filter, ripen, and defoam the viscose prepared in the preparation of raw materials. The ripening treatment is to place the viscose in an environment of 45°C for 22 hours to reduce the concentration of cellulose xanthate. Degree of esterification; spinning forming is to put the viscose that has been filtered, matured and defoamed into the spinning box and stir, and then control the flow of viscose through the metering pump. The visco...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention discloses a spun rayon yarn production technology which sequentially includes the steps: 1) stock solution preparation; 2) preparation before spinning; 3) spinning forming; 4) post-treatment, wherein preparation before spinning includes filtering, ripening and defoaming treatment for adhesives prepared in stock solution preparation. Post-treatment sequentially includes the steps: A stretching: stretching spun filaments prepared in spinning forming on a draw-off godet; B cleaning: cleaning the stretched spun filaments sequentially by warm water wash, desulfurization, acid cleaningand oiling; C heat setting: performing heat setting on the cleaned spun filaments by a heating roller to prepare filaments; D winding: winding the heat-set filaments; E cutting off and then packagingthe wound filaments. The technology steps are simple in operation, product yield is high, and economic benefits are improved.

Description

technical field [0001] The invention relates to a production process of rayon yarn, belonging to the technical field of textiles. Background technique [0002] Rayon yarn is mainly a substitute for cotton. It is a kind of fiber extracted from weaving plants and processed by special technology. It has good luster and delicate hand feeling. Naturally, there is no doubt about the use of the fabric. Rayon yarn is used in various clothing As well as the processing of decoration, it has played a vital role in promoting the development of my country's garment industry; rayon yarn is often made by wet method, but the existing rayon yarn production process steps are cumbersome and the yield is low . Contents of the invention [0003] In order to solve the deficiencies of the prior art, the invention provides a production process of rayon yarn, the process steps are simple to operate, the product yield is high, and the economic benefit is improved. [0004] The technical solution ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/10D01D1/06
CPCD01F2/10D01D1/06
Inventor 刘沙沙
Owner 徐州锦业纺织科技有限公司
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