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Printing and dyeing process of denim

A printing and dyeing technology, denim technology, applied in the direction of dyeing, textile and papermaking, can solve the problems of difficult quality control, long process route, high cost, and achieve the effects of rich colors, simple operation and less environmental pollution

Inactive Publication Date: 2014-03-19
CHANGSHU XIONGFA KNITTING PLUSH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the long process route, high cost and difficult quality control, the existing conventional reactive dye printing and dyeing process also has the problem of serious environmental pollution caused by sewage discharge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A printing and dyeing process for denim, comprising the steps of:

[0019] 1) Pre-treatment gray cloth: treat the gray cloth with alkali, refining agent and hydrogen peroxide, and dehydrate and shape it;

[0020] 2) Paste printing: Prepare printing paste, pigment printing paste and sulfur dye printing paste, the viscosity is controlled at 40000Pa·S, printed on flat screen printing machine, and dried at 100°C;

[0021] The pigment printing paste is prepared by 14 parts by mass of dye paste, 30 parts by mass of water-based polyurethane adhesive, 45 parts by mass of emulsified paste, and 7 parts by mass of urea;

[0022] The sulfur dye printing paste is prepared by 7 parts by mass of sulfur dye, 25 parts by mass of sodium formaldehyde sulfoxylate dihydrate, 30 parts by mass of etherified starch paste, 12 parts by mass of soda ash, 8 parts by mass of glycerin, and 16 parts by mass of warm water;

[0023] 3) Steaming: temperature 90°C, 20 minutes;

[0024] 4) Water washing...

Embodiment 2

[0029] A printing and dyeing process for denim, comprising the steps of:

[0030] 1) Pre-treatment gray cloth: treat the gray cloth with alkali, refining agent and hydrogen peroxide, and dehydrate and shape it;

[0031] 2) Paste printing: Prepare printing paste, pigment printing paste and sulfur dye printing paste, the viscosity is controlled at 45000Pa·S, flat screen printing machine printing, drying at 105°C;

[0032] The pigment printing paste is prepared by 16 parts by mass of dye paste, 35 parts by mass of water-based polyurethane adhesive, 50 parts by mass of emulsified paste, and 9 parts by mass of urea;

[0033] The sulfur dye printing paste is prepared by 8 parts by mass of sulfur dye, 30 parts by mass of sodium formaldehyde sulfoxylate dihydrate, 35 parts by mass of etherified starch paste, 14 parts by mass of soda ash, 9 parts by mass of glycerin, and 18 parts by mass of warm water;

[0034] 3) Steaming: temperature 92°C, 25 minutes;

[0035] 4) Water washing: use...

Embodiment 3

[0040] A printing and dyeing process for denim, comprising the steps of:

[0041] 1) Pre-treatment gray cloth: treat the gray cloth with alkali, refining agent and hydrogen peroxide, and dehydrate and shape it;

[0042] 2) Paste printing: Prepare printing paste, pigment printing paste and sulfur dye printing paste, the viscosity is controlled at 43000Pa·S, printed on flat screen printing machine, and dried at 103°C;

[0043] The pigment printing paste is prepared by 15 parts by mass of dye paste, 32 parts by mass of water-based polyurethane adhesive, 48 parts by mass of emulsified pulp, and 7.9 parts by mass of urea;

[0044] The sulfur dye printing paste is prepared by 7.8 parts by mass of sulfur dye, 28 parts by mass of sodium formaldehyde sulfoxylate dihydrate, 33 parts by mass of etherified starch paste, 13 parts by mass of soda ash, 8.9 parts by mass of glycerin, and 17 parts by mass of warm water;

[0045] 3) Steaming: temperature 91°C, 23 minutes;

[0046] 4) Water wa...

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PUM

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Abstract

The invention discloses a printing and dyeing process of denim. The printing and dyeing process comprises the following steps: (1) grey cloth pretreatment; (2) paste mixing and printing: mixing printing paste, cooperatively using pigment printing paste and sulfur dye printing paste, controlling the viscosity at 40000-45000Pa.S, printing by using a flat screen printing machine, and drying at the temperature of 100-105 DEG C, wherein the pigment printing paste is prepared from the following components in parts by mass: 14-16 parts of pigment color paste, 30-35 parts of waterborne polyurethane binder, 45-50 parts of emulsified paste and 7-9 parts of urea; the sulfur dye printing paste is prepared from the following components in parts by mass: 7-8 parts of sulfur dye, 25-30 parts of sodium formaldehydesulfoxylate dehydrate, 30-35 parts of etherified starch paste, 12-14 parts of sodium carbonate, 8-9 parts of glycerin and 16-18 parts of warm water; (3) ageing; (4) oxidant spraying; (5) washing; (6) shaping. The printing and dyeing process is simple in operation, little in environment pollution, rich in design and color and favorable in printing and spraying effects.

Description

technical field [0001] The invention relates to a printing and dyeing process for denim. Background technique [0002] With the improvement of people's living standards, the requirements for printing and dyeing of knitted fabrics are getting higher and higher, and personalized printing effects are becoming more and more popular. In addition to the long process route, high cost and difficult quality control, the existing conventional reactive dye printing and dyeing process also has the problem of serious environmental pollution caused by sewage discharge. Contents of the invention [0003] The object of the present invention is to provide a denim printing and dyeing process, which is simple in operation, less in environmental pollution, rich in patterns and colors, and has printing and spraying effects. [0004] In order to achieve the above object, the technical solution of the present invention is to design a kind of printing and dyeing process of denim, comprising the ...

Claims

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Application Information

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IPC IPC(8): D06P1/30D06P1/00D06P1/62D06P1/48D06P1/673D06P1/52D06P1/642D06P5/10
Inventor 王开发
Owner CHANGSHU XIONGFA KNITTING PLUSH
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