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Sodium hypochlorite printing process

A technology of sodium hypochlorite, printing process, applied in dyeing, textile and papermaking, etc.

Active Publication Date: 2012-06-20
江苏斯得福新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] (4) There is an essential difference in the mechanism, use and result of the damage to cotton fabrics between the known acid burnt-out printing process for polyester-cotton blended fabrics and core-spun yarn fabrics and the post-treatment processes such as garment suspension stone washing and the sodium hypochlorite process.

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

[0028] A kind of sodium hypochlorite printing technique, comprises the following steps:

[0029] 1. Add 400ml of 120g / l sodium hypochlorite, 700g of sodium alginate, 20g of soda ash, 50g of sodium hexametaphosphate and 5ml of formaldehyde with a concentration of 40% in 7000g of water at 65°C, add water and stir to synthesize 10kg of paste, and then use glacial acetic acid to dissolve the paste The PH value of the material is adjusted to 6-8, and it is made into printing paste.

[0030] 2. Through the machine continuous printing or manual intermittent printing process, engrave the patterned screen or roller, print the slurry on the piece or sheet fabric, and dry it at 65 degrees.

[0031] 3. After the above fabrics are made into clothes, wash them with water, sand or suspended stones.

Embodiment 2

[0033] A kind of sodium hypochlorite printing technique, comprises the following steps:

[0034] 1. Add 400ml of 100g / l sodium hypochlorite, 600g of sodium alginate, 15g of soda ash, and 45g of sodium hexametaphosphate to 6500g of water at 60°C, add water and stir to form a 10kg paste, then use glacial acetic acid to adjust the pH value of the paste to 6-8 , made into printing paste.

[0035] 2. Through the machine continuous printing or manual intermittent printing process, engrave the patterned screen or roller, print the slurry on the piece or sheet fabric, and dry it at 50 degrees.

[0036] 3. After the above fabrics are made into clothes, wash them with water, sand or suspended stones.

Embodiment 3

[0038] A kind of sodium hypochlorite printing technique, comprises the following steps:

[0039] 1. Add 400ml of 140g / l sodium hypochlorite, 800g of sodium alginate, 25g of soda ash, 55g of sodium hexametaphosphate and 10ml of formaldehyde with a concentration of 40% in 7500g of 70°C water, add water and stir to form 10kg of paste, and then use glacial acetic acid to dissolve the paste The PH value of the material is adjusted to 6-8, and it is made into printing paste.

[0040] 2. Through the machine continuous printing or manual intermittent printing process, engrave the patterned screen or roller, print the slurry on the piece or sheet fabric, and dry it at 80 degrees.

[0041] 3. After the above fabrics are made into clothes, wash them with water, sand or suspended stones.

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PUM

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Abstract

The invention discloses a sodium hypochlorite printing process. The process comprises the following steps: mixing available chlorine, sodium alginate and water to make a paste, and then adjusting pH of the paste to 6 to 8 by use of glacial acetic acid, to obtain a printing paste; performing mechanical continuous printing or manual intermittent printing process, making a screen or roller with patterns, applying the paste onto a roll-like or sheet-like fabric, and drying at 50 DEG C to 80 DEG C; and making clothes with the fabric, and performing water wash, sand wash or suspended stone wash. With the sodium hypochlorite printing process, the patterns of the fabric have color-fade, old, tear and crack effects. Therefore, the process can be directly applied to all-cotton fabric printing process and tear and aging process of clothes and fabric art products.

Description

technical field [0001] The invention belongs to a novel printing process and is mainly used for the destructive printing process of cotton dyed fabrics. Background technique [0002] Sodium hypochlorite (NaCl0) is sodium hypochlorite. In the printing and dyeing industry, as a bleaching agent for cotton fabrics, it is mainly used to remove natural pigments and impurities. At the same time, it has a certain oxidation effect on cotton fibers and can reduce the polymerization of cotton fibers. degree, damage the cotton fiber. The main factors affecting the bleaching effect of sodium hypochlorite are: pH value, temperature and concentration. [0003] When PH=2~4, the degree of polymerization of cotton fiber is higher, the damage degree of cotton fiber is smaller, and the bleaching rate is very fast. However, under this pH value condition, a large amount of chlorine gas will escape in the acidic solution, causing environmental pollution, which is unfavorable to labor protection,...

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): D06P1/673D06P1/48D06P1/651D06P3/60
Inventor 张华
Owner 江苏斯得福新材料有限公司
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