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Discharge printing method

A technology of discharge printing and printing paste, applied in dyeing method, textile and papermaking, etc., can solve the problems of long production cycle, high defective rate, difficult to find defects, etc., and achieve the effect of saving cost and preventing color matching.

Inactive Publication Date: 2017-07-21
昆明市宜良阳昇工艺品厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing discharge dyeing process requires steaming, pressing, and high-temperature accompanying drying to achieve the ideal whitening effect. The process is also complicated and the production cycle is long. It is difficult to find defects and defective products during printing. High rate, high printing cost

Method used

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  • Discharge printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Use the silk screen to make a screen version according to the required graphics;

[0015] (2) According to the volume ratio of sodium hypochlorite solution and water as 4:2, mix sodium hypochlorite solution with a pH value of 12 and water, then calculate the solid-liquid ratio g / mL as 4:30, add carboxymethyl cellulose, and Obtain printing paste after stirring evenly;

[0016] (3) Put the fabric to be dyed (the dyed fabric with a base color obtained by dyeing plants and trees) under the screen plate of step (1), then pour the printing paste of step (2) into the screen plate, and scrape the plate 3 times back and forth After starting the plate, sprinkle cornmeal on the fabric to be dyed, and then dry it for 15-25 minutes. According to the mass ratio of sulfuric acid solution and water as 1:5, mix the sulfuric acid solution with a mass concentration of 70% and water to prepare Pickling solution, use the pickling solution to wash the fabric, then wash it with water and...

Embodiment 2

[0018] (1) Use the silk screen to make a screen version according to the required graphics;

[0019] (2) According to the volume ratio of sodium hypochlorite solution to water is 5:3, mix sodium hypochlorite solution with pH value of 12 and water, then calculate the solid-liquid ratio g / mL as 5:35, add carboxymethyl cellulose, and Obtain printing paste after stirring evenly;

[0020] (3) Place the fabric to be dyed (the dyed fabric with a base color directly dyed) under the screen plate of step (1), then pour the printing paste of step (2) into the screen plate, and scrape the plate back and forth 4 After the first printing, sprinkle cornmeal on the fabric to be dyed, and then dry it for 15 to 25 minutes. According to the mass ratio of sulfuric acid solution and water as 1:5, mix the sulfuric acid solution with a mass concentration of 50% and water to prepare It is a pickling solution, and the fabric is washed with the pickling solution, then washed with water and dried in th...

Embodiment 3

[0022] (1) Use the silk screen to make a screen version according to the required graphics;

[0023] (2) According to the volume ratio of sodium hypochlorite solution and water as 4.5:2.5, mix sodium hypochlorite solution with a pH value of 12 and water, and then calculate the solid-liquid ratio g / mL as 4.5:40, add carboxymethyl cellulose, and Obtain printing paste after stirring evenly;

[0024] (3) Place the fabric to be dyed (the dyed fabric with a base color obtained by reactive dyeing) under the screen plate of step (1), then pour the printing paste of step (2) into the screen plate, and scrape the plate back and forth 4 After the first printing, sprinkle cornmeal on the fabric to be dyed, and then dry it for 15 to 25 minutes. According to the mass ratio of sulfuric acid solution and water as 1:5, mix the sulfuric acid solution with a mass concentration of 80% and water to prepare It is a pickling solution, and the fabric is washed with the pickling solution, then washed...

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PUM

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Abstract

The invention discloses a method for discharge dyeing printing. First, use a screen to make a screen plate according to the required graphics; then mix sodium hypochlorite solution with water in proportion, then add carboxymethyl cellulose in proportion, and obtain printing after stirring evenly Put the fabric to be dyed under the screen plate, then pour the printing paste into the screen plate, scrape the plate back and forth several times, and then start the plate, then sprinkle cornmeal on the fabric to be dyed, and then dry it and wash it with water . The invention utilizes sodium hypochlorite to destroy the ground color on colored fabrics to obtain various decorative patterns that are partially decolorized or colored. The invention has the characteristics of environmental protection, recyclability, and cost saving. After directly drying, it can be washed with water, and processes such as steaming, pressing, and high-temperature accompanying drying are eliminated.

Description

technical field [0001] The invention relates to a discharge printing method and belongs to the technical field of weaving printing and dyeing. Background technique [0002] Discharge printing is dyeing first and then printing. The printing paste contains chemicals that can destroy the background dye, which is called a discharge agent. Under appropriate conditions, the background color can be destroyed, and the white flowers obtained by washing are called whitening; If a dye that can resist the discharge agent is added to the printing paste, another color will be dyed while destroying the background color, which is called color discharge (also known as color discharge). White discharge printing and colored discharge printing can be applied to one pattern at the same time, collectively referred to as discharge printing. [0003] The ground color of the discharge dyeing printed fabric is full and bright, the pattern is fine, the outline is clear, there is no third color betwee...

Claims

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Application Information

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IPC IPC(8): D06P5/15D06P5/08
CPCD06P5/153D06P5/08D06P5/158
Inventor 郭琼芬梁跃辉
Owner 昆明市宜良阳昇工艺品厂
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