Composition of hydrogen peroxide catalyst and application thereof

A technology of composition and catalyst, which is applied in the direction of dyeing, textiles and papermaking, etc., can solve the problems of destroying the strength of cotton fiber or spandex fiber, easy yellowing of denim, and long time required, so as to improve strength and elasticity, improve Production environment, the effect of improving color brightness

Pending Publication Date: 2021-09-03
广州骏亚纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional bleaching and stripping process, the time required is too long, and the active high-valent chlorine will destroy the strength of cotton fibers or spandex fibers, directly affecting the service life of garments
[0004] At the same time, in the process of neutralization and bleaching, use hydrogen peroxide or sodium bicarbonate to neutralize and dry after neutralization. The denim tends to turn yellow and the contrast is not clear enough, and the pungent smell of bleach still remains. In order to improve the problem of yellowing and the smell of bleach , denim washing plants need to add a new tank of water after neutralization, and continue to add alkali and washing powder to cook. Even so, there will still be problems of yellowish color and strong smell of bleach.

Method used

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  • Composition of hydrogen peroxide catalyst and application thereof
  • Composition of hydrogen peroxide catalyst and application thereof
  • Composition of hydrogen peroxide catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The manganese inorganic substance is μ-oxygen-bis-tetrachlorophenyl porphyrin manganese, the content of the μ-oxygen-bis-tetrachlorophenyl porphyrin manganese is 0.02%, and the content of the acetic acid is 0.1%, the content of the sodium acetate is 0.6%, the content of the sodium chloride is 1.2%, and the content of the water is 98.08%. Prepared by mixing and stirring.

[0024]

Embodiment 2

[0026] Ethanol is also included, and the manganese-based inorganic substance is manganese phthalocyanine chloride.

[0027] Preferably, the content of the phthalocyanine manganese chloride is 0.05%, the content of the ethanol is 0.15%, the content of the acetic acid is 0.2%, the content of the sodium acetate is 0.05%, and the content of the sodium chloride The water content is 0.05%, and the water content is 99.5%. Prepared by mixing and stirring.

[0028]

[0029]

[0030] The embodiment of the present invention also provides an application of the composition as a catalyst for sulfur dye bleaching.

[0031] Under the condition that the composition content of the catalyst is 0.02-0.05%, hydrogen peroxide can be greatly catalyzed and activated, and high-valence active substances can be produced, which can replace bleaching water, and the sulfur dye in blue denim can be uniformly processed in a water bath. Bleaching or stripping.

Embodiment 3

[0033] Bleaching the color of the blue denim fabric comprises the following steps: adding the composition to water at a ratio of 1-5g / L to water; adding sodium hydroxide at a ratio of 1-4g / L to water after five minutes; After two minutes, add hydrogen peroxide with a concentration of 38% according to the ratio of 2-10g / L to water; the reaction temperature is controlled at 45°-55°, and the reaction time is 20-30 minutes.

[0034] The principle of bleaching is: sodium hydroxide is used to adjust the pH value, and the composition becomes a catalyst for hydrogen peroxide to fade the sulfur dyes in blue cattle or black cattle. Under the condition of 50°, 20-30 minutes, the blue or Light black denim.

[0035] Using the hydrogen peroxide catalyst composition as a raw material to bleach the color of blue denim has the following beneficial effects:

[0036] 1. It can replace traditional bleaching water. It can evenly bleach or strip sulfur dyes in a water bath, and improve the color b...

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Abstract

The invention belongs to the related field of chemicals, and provides a composition of a hydrogen peroxide catalyst. The composition is prepared from the following components in percentage by content: 0.02%-0.05% of manganese inorganic matter, 0.1%-0.2% of acetic acid, 0.05%-0.6% of sodium acetate, 0.05%-1.2% of sodium chloride, and the balance of water; and the total amount of the composition is 100%. The invention further provides an application of the composition as a catalyst for bleaching sulfur dyes. The composition can replace traditional bleaching water, sulfur dye can be uniformly bleached or stripped in a water bath, and the color brightness of bleached cloth is improved. Meanwhile, the whole bleaching process is very safe and controllable, and no smelly bleaching smell is left on a workshop and a product, so that the production environment is improved. Moreover, the bleaching process is short in time, and the destructive power to the cotton fibers or the spandex fibers is reduced, so that the strength and the elasticity of the cloth are improved.

Description

technical field [0001] The invention belongs to the related field of chemicals, and in particular relates to a hydrogen peroxide catalyst composition and application thereof. Background technique [0002] In the production of clothing, it is necessary to use bleaching water to rinse the color of the fabric. The chemical name of the bleaching water is sodium hypochlorite, which is commonly used in denim washing plants to lighten denim. After the bleaching treatment, it is necessary to neutralize and unbleach before proceeding to the follow-up process: [0003] In the traditional bleaching and stripping process, the time required is too long, and the active high-valent chlorine will destroy the strength of cotton fibers or spandex fibers, directly affecting the service life of garments. [0004] At the same time, in the process of neutralization and bleaching, use hydrogen peroxide or sodium bicarbonate to neutralize and dry after neutralization. The denim tends to turn yello...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/13D06P1/30
CPCD06P5/137D06P5/132D06P1/30
Inventor 叶绍全何超洪邱玉波
Owner 广州骏亚纺织科技有限公司
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