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After-finishing process of woolen spandex fabric

A four-way elastic and post-finishing technology, which is applied in the processing of textile materials, spray/jet textile materials, liquid/gas/steam textile materials, etc., can solve the problem of uneven shrinkage of elastic fibers, inconsistent elastic shrinkage, and uneven surface of fabrics. Flattening and other problems, to achieve the effect of beautiful appearance, enhanced warmth retention, and increased shrinkage

Active Publication Date: 2020-10-27
JIANGYIN XINGWU WOOL FABRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The elasticity of polyester and other fibers is basically the same as that of wool fiber. After the wool blended elastic fabric containing polyester fiber is pre-set at high temperature, the polyester will become viscous and the elasticity will decrease, but the elasticity of wool will not change after pre-setting, so it will cause wool The elastic shrinkage between the elastic fiber and the wool fiber in the blended elastic fabric is inconsistent, or the wool fiber pulls the elastic fiber to move when shrinking. Since the elastic fiber does not shrink independently, the elastic fiber shrinks unevenly, causing the surface of the fabric to be uneven. Wrinkles occur, poor fabric appearance

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

[0015] The present invention relates to a post-finishing process of woolen four-way stretch fabric, which includes gray fabric preparation → presetting → low elasticity treatment → soaping → seaming → shrinking → inspection → shaping → shearing → steaming → inspection and packaging; The low elasticity treatment includes fumigation of gray cloth with formic acid, cleaning with deionized water, dehydration, spraying soaking with 0.5% acetic acid aqueous solution by volume, ultrasonic treatment, plasma treatment, cleaning, dehydration and spraying soaking with deionized water, alkali treatment, Wash and dehydrate.

[0016] The weight ratio of the acetic acid solution to the gray cloth is 1:10, and the weight ratio of the deionized water to the gray cloth is 1.5:5.

[0017] The process of fumigation with formic acid is as follows: heating the formic acid to 115° C., fumigation in a sealed space for 35 minutes, and condensing and refluxing the fumigated formic acid for reuse.

[0...

Embodiment 2

[0023] The difference between Example 2 and Example 1 is that the weight ratio of the acetic acid solution to the gray cloth is 1:25, and the weight ratio of the deionized water to the gray cloth is 1.2:5.

[0024] The process of fumigation with formic acid is as follows: heating the formic acid to 112° C., fumigation in a sealed space for 33 minutes, and condensing and refluxing the fumigated formic acid for reuse.

[0025] The plasma treatment process is as follows: the gray cloth is unfolded and straightened through the plasma reaction chamber for 3 minutes, the vacuum degree is 32pa, and the power is 60w.

[0026] The process of the alkali treatment is as follows: the gray cloth is cold-stacked and placed in a closed ammonia gas chamber at room temperature, and the fumigation time is 12 minutes.

[0027] The pre-setting includes baking and setting at a temperature of 183° C. and a speed of 12 m / min.

[0028] The specific conditions for the deburdening are as follows: the ...

Embodiment 3

[0030] The difference between Example 3 and Example 1 is that the weight ratio of the acetic acid solution to gray cloth is 4:25, and the weight ratio of deionized water to gray cloth is 9:25.

[0031] The process of fumigation with formic acid is as follows: heating the formic acid to 118° C., fumigation in a sealed space for 37 minutes, and condensing and refluxing the fumigated formic acid for reuse.

[0032] The plasma treatment process is as follows: the gray cloth is unfolded and straightened through the plasma reaction chamber for 8 minutes, the vacuum degree is 37pa, and the power is 90w.

[0033] The process of the alkali treatment is as follows: the gray cloth is cold-stacked and placed in a closed ammonia gas chamber at room temperature, and the fumigation time is 18 minutes.

[0034] The pre-setting includes baking and setting at a temperature of 188° C. and a vehicle speed of 14 m / min.

[0035] The specific conditions for the deburdening are as follows: the steam...

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 an after-finishing process of a woolen spandex fabric. The after-finishing process sequentially comprises the following steps of gray fabric preparation, pre-shaping, low-elasticity treatment, soaping, hemming, milling, inspection, shaping, shearing, decatizing, inspection and packaging. The low-elasticity treatment sequentially comprises the following steps of fumigating the gray fabric with formic acid; spraying an acetic acid aqueous solution with the volume percentage of 0.1-1% for infiltrating; carrying out ultrasonic treatment; carrying out plasma treatment; and carrying out alkali treatment, wherein the weight ratio of the acetic acid solution to the gray fabric is (0.1-1): 5. The wool blended elastic fabric finished through the finishing process is consistent and uniform in shrinkage and not prone to wrinkling; fluffs on the surface of the fabric are dense and uniform; and the fabric has high elastic stability and heat retention property.

Description

technical field [0001] The invention relates to the technical field of finishing fabrics, in particular to a finishing process for woolen four-way stretch fabrics. Background technique [0002] Slubbed wool four-way stretch fabrics are generally woven from wool and polyester and other elastic fiber blended tops in the warp and weft directions. The elasticity of polyester and other fibers is basically the same as that of wool fiber. After the wool blended elastic fabric containing polyester fiber is pre-set at high temperature, the polyester will become viscous and the elasticity will decrease, but the elasticity of wool will not change after pre-setting, so it will cause wool The elastic shrinkage between the elastic fiber and the wool fiber in the blended elastic fabric is inconsistent, or the wool fiber pulls the elastic fiber to move when it shrinks. Since the elastic fiber does not shrink independently, the elastic fiber shrinks unevenly, causing the surface of the fabri...

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): D06M13/188D06M11/60D06M10/02D06M10/08D06M10/06D06B1/02D06B13/00D06C7/02D06B1/00D06M101/12
CPCD06M13/188D06M11/60D06M10/02D06M10/08D06M10/06D06B1/02D06B13/00D06C7/02D06B1/00D06M2101/12D06M2200/20D06M2200/50
Inventor 吴栋标
Owner JIANGYIN XINGWU WOOL FABRIC TECH
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