Fabric pre-treatment auxiliary

Abstract

The invention belongs to the technical field of textile chemicals and relates to a fabric pre-treatment auxiliary. The fabric pre-treatment auxiliary is prepared from, by weight, 10-30% of hydrogen peroxide stabilizer, 50-78% of metabolic alcaldosis agent, 5-10% of pH buffering agent, 5-10% of nonionic surfactant, 1-2% of scale inhibitor and 0.5-1% of defoamer. The fabric pre-treatment auxiliary can be free from caustic soda flakes, provides an alkaline environment for stable hydrogen peroxide decomposition, is capable of descaling, environmentally friendly and nontoxic and guarantees that the whiteness, capillary effect and desizing rate of treated fabric meet the standards.

Description

technical field [0001] The invention belongs to the technical field of textile chemical industry, and in particular relates to a fabric pretreatment auxiliary agent. Background technique [0002] In the pretreatment process of cotton fabric, the decomposition reaction of hydrogen peroxide under high temperature and strong alkali conditions is used to desize the fabric, remove impurities in the cotton fiber, and complete the bleaching effect on the fabric at the same time. However, with the rapid development of high-efficiency, low-energy, and short-process pre-treatment processes, the conventional three-step descouring and bleaching process has been combined into a one-step short-process pre-treatment process to remove impurities such as pulp, wax, and pectin. [0003] At present, a large amount of caustic soda is used in the one-step deboiling and bleaching method, and the pH value is far beyond the stable decomposition range of hydrogen peroxide. Even if an excessive amoun...

AI Technical Summary

Problems solved by technology

[0003] At present, a large amount of caustic soda needs to be used in the one-step deboiling and bleaching method, and the pH value is much higher than the stable decomposition range of hydrogen peroxide. Even if an excessive amount of hydrogen peroxide stabilizer is added, there will be serious problems such as a decrease in whiteness, holes in the fabric surface, and a decrease in fabric strength.

However, when the amount of caustic soda is reduced, the whiteness, gross effect and desizing rate of the fabric will not meet the standard, resulting in a decrease in the pretreatment effect

The surfactants used in conventional pretreatment, such as TX-10, AEO9, JFC, etc., have poor cleaning and decontamination capabilities, are not resistant to strong alkalis, affect the pretreatment effect, and also have the disadvantages of being difficult to degrade and not environmentally friendly

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