Composition of hydrogen peroxide catalyst and application thereof

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...

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.

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