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Colour fading agent composition and its application method

An application method and composition technology, applied in dyeing, textiles, papermaking, bleaching products, etc., can solve the problems of inability to achieve fading effect, difficult control of the operation process, unfavorable re-dyeing treatment, etc., and achieve low toxicity and little pollution , the effect of convenient operation

Active Publication Date: 2006-09-13
天津市雄冠科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using sodium dichloroisocyanurate alone as a bleaching agent / fading agent, because it releases active chlorine faster, it is not easy to control during operation, and cannot achieve the required fading effect for production, which is not conducive to subsequent re-use. Dyeing treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) choose the percentage by weight of discoloring agent composition to form:

[0019] Sodium dichloroisocyanurate: 90%

[0020] Anhydrous sodium metasilicate: 10%

[0021] (2) Mix the above-mentioned components according to a conventional method to make a decolorizing agent composition.

[0022] (3) Add 1Kg of the decolorizing agent composition into 300Kg of water, and put 40Kg of blue-green jacquard cloth into the bath liquid under the condition that the pH value is 7, stir, heat up, and soak. The process conditions and fading effect are shown in Table 1.

Embodiment 2

[0024] In 200Kg water, add 1Kg of the discoloring agent composition in embodiment 1, under the condition of pH value 5, 10Kg purple sheepskin / mink skin is dropped in bath liquid, stirs, heats up, soaks. The process conditions and fading effect are shown in Table 1.

Embodiment 3

[0026] In 200Kg water, add 3Kg of the discoloring agent composition in Example 1, under the condition of pH value 7, 15Kg chemical fiber cloth (yellow bright surface velvet / dark camel twill) is dropped in bath liquid, stir, heat up, soak. The process conditions and fading effect are shown in Table 1.

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PUM

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Abstract

The invention provides a depigment agent combination, comprising: sodium dichloro iso cyanurate 20wt%-95wt% and anhydrous sodium metasilicate 5wt%-80wt%. and it has low soaking damage to fabrics, able to effectively reduce environmental pollution and able to be widely applied to spinning and weaving, and printing and dyeing fields and coat and leather dyeing fields, having better depigment effect, not influencing redyeing and beneficial to resources recycling.

Description

technical field [0001] The invention relates to a pre-dyeing auxiliary agent, in particular to a decolorizing agent composition. Background technique [0002] Finished fabrics, fibers may form a backlog due to unpopular colors, or become defective due to uneven dyeing and affect sales. In this case, if the existing colors on the fabrics and fibers can be removed, re-dyed (color-changed) and then re-sold, not only can the reuse of resources be realized, but also the profit of the enterprise can be increased. [0003] The fading of fabrics and fibers is to remove the color on the colored fabrics and fibers to make them fade to natural white, bleached white, or reduce the color depth for re-dyeing. The currently commonly used method of discoloration is mainly bleaching, namely utilizing bleaching agents such as sodium hypochlorite, hydrogen peroxide or sodium chlorite to bleach colored fabrics and fibers. When using sodium hypochlorite for bleaching treatment, it can be carri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/13D06L3/00D06L4/21D06L4/27
Inventor 张瑾赵鑫
Owner 天津市雄冠科技发展有限公司
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