Whitening agent

Abstract

The invention discloses a whitening agent. The whitening agent comprises, by weight, 0.1-0.3% of a fluorescent whitening agent VBL, 0.6-1% of a softener, 0.02-0.03% of sodium sulfate, 0.01-0.02% of sulfur dioxide, 0.5-1% of soap and the balance water.

Description

technical field [0001] The present invention relates to a whitening agent. Background technique [0002] Brightener (brightener / Optical whitener) is a class of organic compounds that can improve the whiteness of fiber fabrics and paper. Also known as optical brightener, fluorescent whitening agent. Fabrics, etc. are often yellow due to colored impurities. In the past, chemical bleaching was used for decolorization. Now, the method of adding brighteners to products is used. Its function is to convert the invisible ultraviolet radiation absorbed by the product into purple-blue fluorescent radiation, which is complementary to the original yellow light radiation and becomes white light, improving the whiteness of the product under sunlight. Brighteners have been widely used in textiles, paper, washing powder, soap, rubber, plastics, pigments and paints. In the past, in the textile industry, single-component whitening agents were mostly used. The defect of this kind of whiteni...

AI Technical Summary

Problems solved by technology

In the past, in the textile industry, most of the whitening agents with a single component were used. The defect of this kind of brightening agent is that the scope of application is narrow, and it cannot meet the needs of various textile whitening agents.