Method for desizing cotton yarn-dyed fabrics

A technology for fabric and cotton color, applied in the field of desizing treatment technology, can solve problems such as poor desizing effect, and achieve the effects of being beneficial to decomposition, improving desizing effect, and reducing burden

Active Publication Date: 2014-09-03
JIANGSU LIANFA TEXTILE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem that the desizing effect of α-amylase padding-steam stacking method is not good for middle and low-grade pure cotton dyed fabrics in starch si

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

Example Embodiment

[0027] 1. Example 1:

[0028] The specification of pure cotton fabric grey cloth: 14.5tex × 14.5tex, the warp yarn density is 480 pieces / 10cm, the weft yarn density is 275.5 pieces / 10cm. The grey fabric has been processed by starch sizing.

[0029] Design of the desizing process: the pure cotton fabric is pretreated with hot water and then dipped into the composite enzyme solution, heat preservation stacking, hot water washing (and enzyme elimination), cold water washing.

[0030] Specific steps:

[0031] 1. Hot water pretreatment:

[0032] The fabric is immersed in hot water at 90°C for 3 minutes, and then squeezed through a roller, and the liquid-carrying rate of the fabric is controlled to be 40-70%, and then enters the composite biological enzyme desizing solution for desizing treatment.

[0033] 2. Compound biological enzyme desizing treatment:

[0034] Prepare the enzyme desizing solution in advance: add α-amylase, debranching enzyme, saccharification enzyme and osmotic agent into ...

Example Embodiment

[0045] 2. Embodiment 2:

[0046] The specification of pure cotton fabric grey cloth: 14.5tex × 14.5tex, the warp yarn density is 480 pieces / 10cm, the weft yarn density is 275.5 pieces / 10cm. The grey fabric has been processed by starch sizing.

[0047] Design of the desizing process: the pure cotton fabric is pretreated with hot water and then padded with an enzyme solution composed of a single α-amylase, heat preservation stacking, hot water washing (and enzyme elimination), cold water washing.

[0048] Specific steps:

[0049] 1. Hot water pretreatment:

[0050] After mixing 20 g of penetrant and 1 kg of water, the temperature was raised to 90°C. The penetrant is selected from nonyl alcohol polyoxyethylene ether or octyl alcohol polyoxyethylene ether, or sodium lauryl sulfate (NaLS).

[0051] Specific treatment method: immerse the fabric in the above-mentioned mixture solution at 90°C for 3 minutes, then squeeze it through a roll to control the liquid entrainment rate of the fabric to...

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 method for desizing cotton yarn-dyed fabrics and belongs to the cotton yarn-dyed fabric pretreatment technology field of printing and dyeing industries. The cotton yarn-dyed fabrics are subjected to compound bio-enzyme desizing treatment after being pretreated by hot water, are subjected to enzyme deactivation treatment after stacking to remove active enzyme remaining in the fabrics, and then are washed and dried. The method aims at solving the technical problem that starch sized cotton yarn-dyed fabrics alpha-amylase padding-steaming stacking method is poor in desizing effect and starch size still remains on desized yarn-dyed fabrics, so that after-treatment quality of the yarn-dyed fabrics is influenced, thus the purpose of improving the desizing effect of the yarn-dyed fabrics is achieved.

Description

technical field [0001] The invention belongs to the technical field of pretreatment of pure cotton colored fabrics in the printing and dyeing industry, in particular to a desizing treatment process. Background technique [0002] In order to meet the normal weaving process requirements of dyed fabrics, the warp yarns of pure cotton dyed fabrics generally need to be sized before weaving. The dyed fabric is desized to remove the size on the warp yarn of the dyed fabric. At present, the warp sizing of medium and low-grade pure cotton colored fabrics woven from warp and weft yarns above 11.7tex is mainly based on (modified) starch sizing. Alkali desizing or alkali-oxidant desizing is generally used for desizing traditional pure cotton dyed fabrics, but these desizing methods will damage the color of the dyed fabric surface and the strength of the fibers. In addition, the traditional desizing process also needs to consume A large amount of water and chemical substances not only ...

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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IPC IPC(8): D06L1/14
Inventor 姚金龙范雪荣向中林唐文君王强张颖孙月玲
Owner JIANGSU LIANFA TEXTILE
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