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Preparation method and dyeing method of polyester fabric disperse dyestuff less-water dyeing color paste

A technology of disperse dyes and polyester fabrics, applied in the field of dyeing and finishing, which can solve the problems of reducing the burden of printing and dyeing water, increasing dyeing costs, and increasing dyeing wastewater, and achieves the effects of reducing dyeing water, reducing processing burdens, and reducing production costs

Active Publication Date: 2020-06-05
湖南鼎诺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that a large amount of water needs to be used for washing and reduction cleaning after conventional hot-melt dyeing of current disperse dyes, resulting in increased dyeing costs and increased dyeing wastewater, which brings practical difficulties to printing and dyeing enterprises, so a polyester fabric is provided The preparation method of the water-less dyeing paste of disperse dyes and its dyeing method realizes the dyeing and finishing process of disperse dyes with less water, thereby reducing the burden of printing and dyeing water, and especially realizing the excellent color fastness and hand feeling of polyester fabrics

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

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Effect test

preparation example Construction

[0021] A kind of preparation method of polyester fabric disperse dye less water dyeing color paste, its steps are as follows:

[0022] (1) The composition of the disperse dye less water dyeing paste: 2% to 80% of the disperse dye is dissolved in an organic solvent to obtain solution A, and then 0.2% to 2% of the dispersant and 0.2% to 2% of the emulsifier are mixed with water Dissolving to obtain solution B;

[0023] (2) Preparation of disperse dye water-less dyeing paste: slowly add solution B to A under the condition of ultrasonic high-speed stirring, the volume ratio of solution A to solution B is 1:3, and then continue ultrasonic stirring for 0.5 to 2 hours, so that The disperse dye dissolved in the organic solvent is uniformly mixed with water and then uniformly dispersed in the form of particles to obtain the water-less dyeing paste of the disperse dye.

[0024] A kind of dyeing method of polyester fabric disperse dye less water dyeing color paste, its steps are as foll...

Embodiment 1

[0027] A kind of preparation method of polyester fabric disperse dye less water dyeing color paste, its steps are as follows:

[0028] (1) Composition of disperse dye less water dyeing paste: Dissolve 2% of disperse blue S-BGL with organic solvent acetone to obtain solution A, then dissolve 0.2% of dispersant NNO and 0.2% of emulsifier TX-10 in water Obtain solution B;

[0029] (2) Preparation of disperse dye water-less dyeing paste: slowly add solution B to A under ultrasonic and 8000r / min high-speed stirring conditions, the volume ratio of solution A to solution B is 1:3, and then continue ultrasonic stirring for 0.5 h, the disperse dye dissolved in the organic solvent is uniformly mixed with water and then uniformly dispersed in the form of particles to obtain the disperse blue S-BGL water-less dyeing paste.

[0030] The method for dyeing by utilizing the above-mentioned disperse blue S-BGL water-less dyeing paste, the steps are as follows:

[0031] Take a certain amount ...

Embodiment 2

[0033] A kind of preparation method of polyester fabric disperse dye less water dyeing color paste, its steps are as follows:

[0034] (1) Composition of disperse dyeing water-less dyeing paste: Dissolve 40% of Disperse Orange S-4RL with organic solvent N,N-dimethylformamide to obtain solution A, and then dissolve 0.5% of dispersant MF and 1.5 % emulsifier TX-21 is dissolved to obtain solution B;

[0035](2) Preparation of disperse dye water-less dyeing paste: slowly add solution B to A under ultrasonic and 20000r / min high-speed stirring conditions, the volume ratio of solution A to solution B is 1:3, and then continue ultrasonic stirring After 2 hours, the disperse dye dissolved in the organic solvent is uniformly mixed with water, and then uniformly dispersed in the form of particles to obtain Disperse Orange S-4RL water-less dyeing paste.

[0036] Utilize the method for dyeing with the above-mentioned disperse orange S-4RL water-less dyeing paste, the steps are as follows:...

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 preparation method and dyeing method of disperse dyestuff less-water dyeing color paste. According to the preparation method, disperse dyestuff is dissolved in an organic solvent, then a dispersing agent and an emulsifying agent are utilized to obtain the stable disperse dyestuff less-water dyeing color paste under an ultrasonic agitation condition. In the ultrasonic agitation process, the disperse dyestuff dissolved in the organic solvent is uniformly dispersed in an aqueous solution in the form of particles to form stable dispersion liquid, and meanwhile a long-timegrinding process in a traditional color paste preparation process is omitted. Through the method, less-water dyeing of a polyester fabric through the disperse dyestuff is realized, the cost of waterfor dyeing is lowered, and all fastness of the dyed fabric is consistent with that of conventional disperse dyestuff hot-melting dyeing.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and in particular relates to a preparation method and a dyeing method of a polyester fabric disperse dye water-less dyeing paste. Background technique [0002] Disperse dyes are a class of dyes with relatively small molecules and no water-soluble groups in their structure. It must be dyed with the aid of a dispersant to disperse the dye evenly in the dyeing solution in order to dye fibers such as polyester. Chemical fiber textile products printed and dyed with disperse dyes are bright in color, excellent in washing fastness, and widely used. At present, most polyester woven fabrics are dyed by hot-melt dyeing with disperse dyes. Hot-melt dyeing has high production efficiency and excellent color fastness. However, the dyed polyester fabrics often need to be washed and restored, which increases the amount of dyeing water and dyeing wastewater. Therefore, it is the pursuit goal of dye...

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): D06P3/54D06P1/16D06P1/44D06P1/92
CPCD06P3/54D06P1/16D06P1/445D06P1/928
Inventor 戴志坚周渭超
Owner 湖南鼎诺新材料科技有限公司
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