Fluorescent whitening agent OB

Brighteners are a class of organic compounds that can improve the whiteness of 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, and the method of adding brighteners to products was adopted.

The function of the whitening agent is to convert the invisible ultraviolet radiation absorbed by the product into purple-blue fluorescent radiation, which complements the original yellow light radiation to become white light, and improves the whiteness of the product under sunlight. Brighteners have been widely used in textiles, paper, washing powder, soap, rubber, plastics, pigments and paints.

As an important fine chemical product, fluorescent whitening agent has a wide range of application fields and good market prospects in industry. At present, many scientists at home and abroad are working on the research of fluorescent whitening agent. Discoloration, easy to obtain raw materials, simple synthesis, no pollution and other practical fluorescent whitening agent.