A kind of glycerin-carboxymethylcellulose sodium composite type hydrogen peroxide bleaching stabilizer and its application

Abstract

The invention discloses a glycerinum-carboxymethylcellulose compound hydrogen peroxide bleaching stabilizer and an application thereof. The compound hydrogen peroxide bleaching stabilizer is prepared from the following components in parts by weight, 1-1.5 parts of glycerinum, 0.1-2 parts of carboxymethylcellulose, 2-2.7 parts of soluble starch and 10-14 parts of water. A preparation method of the compound hydrogen peroxide bleaching stabilizer includes the steps: mixing the water with the glycerinum and heating the water and the glycerinum to 100 DEG C; adding the soluble starch into mixed boiling solution and uniformly stirring the solution; slowly dripping carboxymethylcellulose solution and then performing low-temperature standing. The compound hydrogen peroxide bleaching stabilizer is applied to the bleaching process of linen rove and a fabric thereof. The hydrogen peroxide bleaching stabilizer has the function of efficiently stabilizing hydrogen peroxide, is low in fiber material damage, high in heat resistance, alkali resistance and oxidation resistance, easy to use, good in compatibility with other auxiliaries, low in cost and ideal, and reduces environmental pollution.

Description

Technical field: [0001] The invention relates to the technical field of textile auxiliaries, in particular to a glycerin-sodium carboxymethylcellulose compound hydrogen peroxide bleaching stabilizer and its application in flax roving and fabrics thereof. Background technique: [0002] Hydrogen peroxide bleaching first appeared in 1938. Due to the low oxidation potential of hydrogen peroxide, the oxidative damage to fibers is relatively small, and there is no potential damage. It is widely used in cellulose fibers, especially cotton fibers and their blended fabrics. Bleaching process. Hydrogen peroxide bleaching not only has the characteristics of low refining requirements, combined with refining and pollution-free, [0003] However, hydrogen peroxide as a bleaching agent has poor stability, and rapid decomposition reactions can occur under the catalysis of radiated light, heavy metal ions such as iron ions and copper ions, and hydrogen peroxide bleaching is usually carried ...

AI Technical Summary

Problems solved by technology

The composite hydrogen peroxide bleaching stabilizer has complex raw materials, and the waste liquid contains a large amount of metal ions and boric acid, silicic acid and other ionic groups that are unfavorable to the environment, which pollutes the environment and is not easy to be biodegraded, which is not conducive to environmental protection.

[0006] Adsorption-type stabilizers in the prior art have poor metal ion chelation, low hydrogen peroxide stability and alkali resistance, and have certain damage to fibers; complexation-type stabilizers only chelate free heavy metal ions to prevent and control They decompose hydrogen peroxide, but have no effect on adsorbing other colored impurities in bleach, so they cannot improve the whiteness of fabrics very well

Composite stabilizers can overcome the shortcomings of adsorption or complex stabilizers that are difficult to play an ideal role in practical applications due to their own structural limitations, but their structure is single, difficult to control, and the price is relatively high

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