Polyester/polyurethane knitted fabric rose red system dyeing method

A dyeing method and technology for knitted fabrics, applied in the field of textile printing and dyeing, can solve the problems of affecting the appearance of the cloth surface, being unfriendly to the environment, wasting water resources, etc., and achieve the effects of solving easy coloring, reducing spandex staining, and reducing water consumption

Active Publication Date: 2021-08-20
CHANGZHOU NEW WIDE KNITTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The staining of spandex is serious, and it usually takes 1-2 times of reduction washing to completely remove the disperse dye stained on the spandex and the floating color on the polyester surface, thereby Meet the fastness requirements, but reduction washing wastes water resources and is not friendly to the environment
[0006] (2) The problem of color flower and color stain is relatively prominent, which affects the appearance of the cloth surface

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）

[0026] The dyeing method of polyester / ammonia knitted fabric rose red of the present embodiment has the following steps:

[0027] ① Treatment before dyeing.

[0028] Immerse the polyester / ammonia knitted fabric in the degreasing treatment solution, and degreasing treatment at 110°C for 20 minutes to remove spinning, weaving oil, and various impurities contaminated during storage and transportation; after degreasing treatment Carry out water washing; after water washing, carry out acid neutralization treatment at a temperature of 40° C. for 10 minutes.

[0029] The specific formula of degreasing treatment liquid is as follows: 1.5g / L high-efficiency degreasing agent HT-ECO [sourced from Jiangsu Dewang Chemical Industry Co., Ltd.], 1.5g / L emulsifier SEM-35N [sourced from Jiangsu Shouxin Auxiliary Co., Ltd. Company], 2.0g / L soda ash, and the rest is water.

[0030] The polyester / spandex knitted fabric in this embodiment is polyester / spandex single jersey (75D / 72F polyester 88%+...

Embodiment 2）

[0038] The dyeing method of polyester / ammonia knitted fabric rose red in this example is basically the same as in Example 1, except that there is no moisture-absorbing and sweat-wicking finishing agent SR-631 in the dyeing solution in step ②.

Embodiment 3）

[0040] The dyeing method of polyester / ammonia knitted fabric rose red of the present embodiment has the following steps:

[0041] ① dyeing pretreatment, with embodiment 1.

[0042] ② Dyed bright purple.

[0043] The specific formula of the dye liquor of this embodiment is as follows: 3.0% of the new disperse rose red Rose, 0.2% of the new disperse Brilliant Blue QS-2B, 2% of the moisture absorption and perspiration finishing agent SR-631, 0.45g / L reduction prevention Agent OX, 1.0g / L dispersant HP, and the rest are water, and adjust the pH to 4.5 with glacial acetic acid.

[0044] All the other are with embodiment 1.

[0045] ③ post-dyeing treatment, the same as in Example 1.

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 polyester/polyurethane knitted fabric rose red system dyeing method. The method comprises the steps of dyeing pretreatment, rose red system dyeing and dyeing post-treatment, wherein the dyeing post-treatment is free of reduction washing, a dyeing solution contains a novel rose-red disperse dye and a moisture-absorbing and sweat-releasing finishing agent; the rose-red disperse dye is an azo disperse dye with a coupling component containing a phthalimide structure; and the moisture-absorbing and sweat-releasing finishing agent comprises WELNOL SR-631 or FERAN ICE. According to the novel rose-red disperse dye disclosed by the invention, the coupling component contains the phthalimide structure, so that the novel rose-red disperse dye is very firmly combined with polyester, the staining phenomenon of polyurethane is greatly reduced, and the fastness requirement can be met without reduction washing. By adding the moisture-absorbing and sweat-releasing finishing agent into the dye solution, the novel rose-red disperse dye can be stably dispersed in the dye solution in a monomolecular state, so that association and condensation in a high-temperature and high-pressure state are avoided, and the problem that the rose-red dye is easy to dye and stain is finally solved.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a rose red dyeing method for polyester / ammonia knitted fabrics. Background technique [0002] The dyeing process of polyester / spandex knitted fabrics mostly uses disperse dyes to dye polyester, and then removes the disperse dyes on the spandex and the floating color on the polyester surface by reduction washing. [0003] Due to its bright color, rose red has become a favorite color of many brand designers. Although there are certain differences in color between different brands, they are basically rose red. [0004] At present, there is following problem in the method for existing polyester / ammonia knitted fabric dyeing rose red system: [0005] (1) The staining of spandex is serious. It usually takes 1 to 2 times of reduction washing to completely remove the disperse dyes on the spandex and the floating color on the polyester surface, so as to me...

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): D06P1/18D06P1/44D06P3/85
CPCD06P1/18D06P1/445D06P3/8214
Inventor 左凯杰李华生王存山王碧华黄庄芳容
Owner CHANGZHOU NEW WIDE KNITTING & DYEING
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