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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 sizing, and to propose a method that can improve the enzyme activity of current middle and low-grade pure cotton dyed fabrics. The effect of desizing method, the desizing method to improve the quality of yarn-dyed products

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

[0028] Specifications of pure cotton-dyed gray fabric: 14.5tex × 14.5tex, warp yarn density 480 yarns / 10cm, weft yarn density 275.5 yarns / 10cm. The gray cloth has been sized with starch size.

[0029] Desizing process design: pure cotton colored fabrics are pretreated with hot water, then padded with compound enzyme solution, heat preservation and stacked, hot water washing (and enzyme elimination), and cold water washing.

[0030] Specific steps:

[0031] 1. Hot water pretreatment:

[0032] Soak the fabric in hot water at 90°C for 3 minutes, then squeeze it through rollers, and control the liquid-carrying rate of the fabric to 40-70%, and then enter the subsequent compound biological enzyme desizing solution for desizing treatment.

[0033] 2. Compound biological enzyme desizing treatment:

[0034] Prepare enzyme desizing solution in advance: add α-amylase, debranching enzyme, glucoamylase and penetrant to 1kg of water, so that the mixed solution contains 0.5-2g / L of α-amy...

Embodiment 2

[0046] Specifications of pure cotton-dyed gray fabric: 14.5tex × 14.5tex, warp yarn density 480 yarns / 10cm, weft yarn density 275.5 yarns / 10cm. The gray cloth has been sized with starch size.

[0047] Desizing process design: pure cotton dyed fabrics are pretreated in hot water, then padded with an enzyme solution composed of a single α-amylase, kept in heat preservation, washed in hot water (also to kill the enzyme), and washed in cold water.

[0048] Specific steps:

[0049] 1. Hot water pretreatment:

[0050] Mix 20g of penetrant with 1kg of water and raise the temperature to 90°C. The penetrant is 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 90°C mixture solution for 3 minutes, and then squeeze it through rollers to control the liquid carrying rate of the fabric to 40%-70%, and then enter the subsequent compound biological enzyme ...

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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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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