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Hot pressing-free discharge printing technology of denim fabric

A discharge dyeing printing and denim technology, applied in the field of textile printing and dyeing, can solve problems such as fiber damage, achieve the effects of reducing production costs, reducing production processes, reducing governance and environmental loads

Inactive Publication Date: 2012-04-04
CHANGSHU YALAN GARMENTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this discharge dyeing method is obvious, the fiber is easily damaged by the oxidation of sulfuric acid

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

[0018] Take a piece of indigo denim and soak it in the solution for enzyme desizing and anti-seepage pretreatment. The function of enzyme desizing is to remove the size on the fabric fibers, which is beneficial for the dye to better contact and bond with the fibers on the fabric. , The role of anti-seepage is to prevent the dye from spreading to the surroundings during printing, resulting in blurred patterns. The solution formula is to add: 3g of amylase, 5g of salt, and 2g of penetrant per liter of water, and use acetic acid to adjust the pH to 6-7; treatment conditions: the temperature is 55°C; then dry at 90°C; then prepare the whitening slurry, each The components and mass percentages are: 250 parts of discharge agent, 20 parts of urea, 20 parts of glycerin, 25 parts of penetrating agent and 6 parts of whitening agent. , wherein the concentration of alkali is 8g of alkali added per liter of water. The time is 1-2 minutes, and the temperature is 20°C. Wash with hot water a...

Embodiment 2

[0020] Take a piece of indigo denim and soak it in the solution for enzyme desizing and anti-seepage pretreatment. The solution formula is to add 5g of amylase, 7g of salt, and 3g of penetrant per liter of water, and adjust the pH to 6-7 with acetic acid; Conditions: the temperature is 60°C; then dried at 100°C; then whitening slurry is prepared, the components and mass percentages are: 300 parts of discharge agent, 23 parts of urea, 23 parts of glycerin, 28 parts of penetrant and whitening agent 10 parts of the agent, put the discharge printing paste in the screen and scrape directly; then undergo alkali extraction treatment, in which the concentration of alkali is 9g of alkali per liter of water. The time is 1-2 minutes, and the temperature is 28°C. Wash with hot water and soap, finally wash with water and dry at 100°C.

Embodiment 3

[0022] Take a piece of indigo denim and soak it in the solution for enzyme desizing and anti-seepage pretreatment. The solution formula is to add 6g of amylase, 8g of salt, and 3g of penetrant per liter of water, and adjust the pH to 6-7 with acetic acid; Conditions: the temperature is 60°C; then dried at 110°C; then the components and mass percentages of the whitening slurry used are: 400 parts of discharge agent, 25 parts of urea, 25 parts of glycerin, 30 parts of penetrating agent and 12 parts of white agent, put the discharge printing paste in the screen to scrape and print directly; then undergo alkali extraction treatment, in which the concentration of alkali is 11g of alkali per liter of water. The time is 1-2 minutes, and the temperature is 35°C. Wash with hot water and soap, finally wash with water and dry at 110°C.

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 relates to a hot pressing-free discharge printing technology of a denim fabric. The hot pressing-free discharge printing technology of a denim fabric comprises the following steps of carrying out printing pretreatment on denim clothes, carrying out printing by a white discharge sizing agent, drying in an oven, carrying out alkali discharge treatment, washing by hot water and liquid soap, washing by water and drying in the oven. The hot pressing-free discharge printing technology of a denim fabric is simple, realizes quality stabilization, saves energy, accords with a national energy saving and emission reduction policy, and improves levels and additional values of denim clothes.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a pressure-free discharge dyeing printing process for denim fabrics. Background technique [0002] The development prospect of the denim industry is very broad. At present, the new fibers and functional denim fabrics that are mainly developed can further meet the needs of the development of denim clothing. Although the current competitiveness of enterprises is constantly increasing, the domestic denim fabrics are still mainly low-end products, and the proportion of high-end denim fabrics is not high. Traditional denim fabrics can no longer meet the needs of the market. Vigorously developing high value-added products is a key issue faced by denim fabric and garment manufacturers. [0003] The innovation and application of finishing technology has become a necessary means to improve product quality and added value. Denim clothing fabrics can be dyed and printe...

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): D06P5/15D06P1/642D06P1/651D06L1/14D06M16/00C12S11/00
Inventor 平海刚
Owner CHANGSHU YALAN GARMENTS
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