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Water washing method for denim fabric and denim fabric

A denim fabric and washing technology, applied in chemical instruments and methods, dyeing methods, dry-cleaning fiber products, etc., can solve the problems of serious staining on the bottom surface and low color fastness, so as to improve color fastness and optimize the washing process , not easy to yellowing effect

Pending Publication Date: 2022-08-02
GUANGDONG FORWARD DENIM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the prior art above, the purpose of this application is to provide a denim fabric washing method and denim fabric, aiming to solve the problems of low color fastness and serious bottom surface staining in the existing washing water method

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
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Effect test

preparation example Construction

[0048] Further, the present application also provides a method for preparing an adsorbent. The adsorbent prepared by the following preparation method has a high adsorption rate for dyes. Specifically, it includes the following steps:

[0049] (2.1) Dissolve polyether ether ketone in sulfuric acid, and conduct sulfonation reaction at 70-90℃ for 110min-130min to obtain dark red viscous liquid. Slowly place the container with dark red viscous liquid on ice. In the distilled water mixture, heat is removed and the reaction is terminated to obtain a polymer, and the obtained polymer is washed with distilled water to make the pH value between 5.5-6, and the excess sulfuric acid in the polymer is removed; In, the mass concentration of the sulfuric acid adopted is 64%, the consumption of sulfuric acid can be 0.5-1L, and the polyetheretherketone of 80-150g is added in every 1L of sulfuric acid;

[0050] (2.2) Dissolve the polymer in dimethylformamide, at room temperature, stir in a mag...

Embodiment 1

[0074] Preparation of adsorbent: Dissolve 150g of polyetheretherketone in 1L of sulfuric acid, carry out sulfonation reaction at 80°C for 120min, slowly place the container with dark red viscous liquid in distilled water mixture containing ice, remove heat and Terminate the reaction, wash the obtained polymer with distilled water to make its pH value between 5.5-6, and remove the excess sulfuric acid in the polymer;

[0075] Dissolve 120 g of polymer in 1 L of dimethylformamide, stir at room temperature at 500 rpm in a magnetic stirrer for 1 h, then add 120 g of montmorillonite, stir the suspension in a magnetic stirrer, stir The speed was 350 rpm, the stirring time was 12 h, the centrifugal speed was 1200 rpm, and the centrifugal treatment time was 10 min. The sediment was retained, and after centrifugation, it was washed three times with distilled water, and finally dried at 40 °C to obtain the adsorbent.

[0076] Preparation of dye transfer inhibitor: firstly 60g mPEG500, 2...

Embodiment 2

[0084] The operation was the same as that of Example 1, except that no adsorbent was added in step (3).

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 relates to the field of fabric after-finishing, and discloses a denim fabric washing method and denim fabric, and the denim fabric washing method comprises the following steps: desizing the denim fabric; performing chlorine bleaching treatment on the denim fabric; an adsorbent is added in the chlorine bleaching treatment process; performing cellulase washing treatment on the denim fabric; the denim fabric is subjected to drying treatment; and carrying out padding treatment on the jean fabric. According to the denim fabric washing method provided by the invention, by optimizing the washing process, the denim fabric can be endowed with a vintage style, the color fastness of the denim fabric can be improved, methods for destroying a fiber structure, such as ozone and alkali treatment, do not need to be added after the last washing process, staining of the bottom surface of the fabric can be effectively reduced, and the service life of the denim fabric is prolonged. And the denim fabric is not easy to yellow.

Description

technical field [0001] The present application relates to the field of fabric finishing, and mainly relates to a method for washing denim fabrics and a denim fabric. Background technique [0002] Denim clothing is favored for its unique distressed style, traditional denim fabrics are interwoven with indigo-dyed warp yarns and plain white weft yarns. The warp yarn is generally cotton yarn, and the indigo dye itself is insoluble in water, and cotton fibers can only be dyed by being reduced to leuco. , so the yarn needs to go through multiple padding to achieve the dyeing effect. However, there will be a lot of floating color on the surface of the yarn, so that the wet color fastness of the denim fabric is about 1, and there will be serious color fading in the daily washing of the family, which will seriously affect the washing experience and people's wearing. experience, especially wearing white clothes against it, white clothes will have the problem of being stained. [00...

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): D06L1/14D06L4/23D06L4/21D06P5/12B01J20/26B01J20/30
CPCD06L1/14D06L4/23D06L4/21D06P5/12B01J20/262B01J20/12
Inventor 王宗文卢姣艳王建平
Owner GUANGDONG FORWARD DENIM
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