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Printing and dyeing process of denim

A printing and dyeing process, denim technology, applied in dyeing, textile and paper making, dry cleaning fiber products, etc., can solve the problems of high cost, difficult quality, serious environmental pollution, etc.

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

AI Technical Summary

Problems solved by technology

[0002] The traditional denim dyeing process has a long process route, high cost, difficult quality control, and serious environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A printing and dyeing process for denim, comprising the steps of:

[0017] 1) Treat the gray cloth with alkali, refining agent and hydrogen peroxide, and dehydrate and shape it;

[0018] 2) Slurry printing: To prepare printing paste, take 18 parts by mass of soda ash, 13 parts by mass of glycerin, 8 parts by mass of warm water, 80 parts by mass of etherified starch paste, 8 parts by mass of sodium bisulfite dihydrate formaldehyde, and 2 parts by mass of sulfur dye Prepare sulfur dye printing paste; get 45 parts by mass of etherified starch paste, 14 parts by mass of soda ash, 9 parts by mass of white powder, 8 parts by mass of glycerin, 8 parts by mass of anthraquinone vat dyes, and 25 parts by mass of warm water to prepare vat dye printing paste; Sulfur dye printing paste is used in conjunction with vat dye printing paste; the viscosity is controlled at 20000Pa·S, after uniform preparation, it is filtered with a 50-mesh screen, printed on a flat screen printing machine...

Embodiment 2

[0025] A printing and dyeing process for denim, comprising the steps of:

[0026] 1) Treat the gray cloth with alkali, refining agent and hydrogen peroxide, and dehydrate and shape it;

[0027] 2) Paste printing: To prepare printing paste, take 16 parts by mass of soda ash, 11 parts by mass of glycerin, 6 parts by mass of warm water, 75 parts by mass of etherified starch paste, 5 parts by mass of sodium bisulfite dihydrate formaldehyde, and 1 part by mass of sulfur dye Prepare sulfur dye printing paste; take 40 parts by mass of etherified starch paste, 12 parts by mass of soda ash, 7 parts by mass of white powder, 7 parts by mass of glycerin, 6 parts by mass of anthraquinone vat dyes, and 23 parts by mass of warm water to prepare vat dye printing paste; Sulfur dye printing paste is used in conjunction with vat dye printing paste; the viscosity is controlled at 15000Pa·S, after uniform preparation, it is filtered with a 40-mesh screen, printed on a flat screen printing machine,...

Embodiment 3

[0034] A printing and dyeing process for denim, comprising the steps of:

[0035] 1) Treat the gray cloth with alkali, refining agent and hydrogen peroxide, and dehydrate and shape it;

[0036] 2) Slurry printing: To prepare printing paste, take 17 parts by mass of soda ash, 12 parts by mass of glycerin, 6.8 parts by mass of warm water, 78 parts by mass of etherified starch paste, 5.8 parts by mass of sodium sulfoxylate dihydrate formaldehyde, and 1.2 parts by mass of sulfur dye Preparation of sulfur dye printing paste; take 43 parts by mass of etherified starch paste, 13 parts by mass of soda ash, 7.9 parts by mass of white powder, 7.8 parts by mass of glycerin, 6.8 parts by mass of anthraquinone vat dyes, and 24 parts by mass of warm water to prepare vat dye printing paste; Sulfur dye printing paste is used in conjunction with vat dye printing paste; the viscosity is controlled at 17000Pa·S, after uniform preparation, it is filtered with a 45-mesh screen, printed on a flat s...

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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) treating grey cloth by using alkaline, a refining agent and hydrogen peroxide, dehydrating and shaping; (2) mixing paste and printing; (3) ageing at the temperature of 115-120 DEG C for 12-15min; (4) washing by using a continuous rope washing machine, and dehydrating by using a centrifugal machine, wherein cold water is adopted in the former two washing processes, hot water of 85-90 DEG C is adopted in the third washing process, and cold water is adopted in the later two washing processes; (5) spraying 50-60g / L saturated potassium permanganate solution by using a spray gun; (6) washing by using hot water of 75-80 DEG C, adding 5-6g / L oxalic acid, cleaning by using cold water, and then, dehydrating; (7) shaping. The printed denim obtained through carrying out spray treatment by using an oxidant after printing the denim by using sulfur dye has a hazy three-dimensional effect similar to that of tie-dyeing.

Description

technical field [0001] The invention relates to a printing and dyeing process for denim. Background technique [0002] The traditional denim dyeing process has a long process route, high cost, difficult quality control, and serious environmental pollution. Contents of the invention [0003] The object of the present invention is to provide a denim printing and dyeing process, which is sprayed with an oxidant after the denim is printed with a sulfur dye to obtain a hazy three-dimensional effect similar to tie-dyeing of the printed denim. [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 steps: [0005] 1) Treat the gray cloth with alkali, refining agent and hydrogen peroxide, and dehydrate and shape it; [0006] 2) Slurry printing: To prepare printing paste, take 16-18 parts by mass of soda ash, 11-13 parts by mass of glycerin, 6-8 parts by mass of warm...

Claims

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Application Information

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IPC IPC(8): D06P1/30D06P1/24D06P1/673D06P1/651D06P1/48D06P5/10D06L1/16
Inventor 高宇
Owner CHANGSHU JUNYU KNITTING
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