The role of the brightener is to convert the invisible ultraviolet radiation absorbed by the product into purple-blue fluorescent radiation, which complements the original yellow radiation to become white light, and improves the whiteness of the product under sunlight. Brighteners have been widely used in textiles, papermaking, washing powder, soap, rubber, plastics, pigments and paints.
Generally, brighteners are divided into two categories, one is water-soluble brighteners, and the other is water-insoluble brighteners. The former can be used as a brightener for paper, paint, washing powder and cotton fabrics. The latter can be used for whitening of chemical fibers and plastics.
It is often divided into:
This product is especially used for the molding and processing of various plastics and plastic products under high temperature. Because of its good heat resistance, light resistance and chlorine resistance, it is a brightener for polyester fibers. Polyester, cotton and other fiber blended fabrics The whitening effect is also particularly ideal, and can be used for the whitening of polyester stock solution.
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The 59th National Auto Parts Trade Fair, which lasted for 3 days, ended at the Kazakhstan International Convention and Exhibition Sports Center. This exhibition attracted a total of 100,000 spectators to visit the museum. The Organizing Committee stated that the exhibition held in Harbin was more than the previous one in terms of scale of exhibition and number of visitors, which was a pleasant surprise.
It is understood that this year's "Auto Parts Match" exhibition area of ​​more than 60,000 square meters, more than 2,500 standard booths, the number of more than doubled in previous exhibitions. The exhibition attracted more than 1,800 domestic companies and purchasing delegations from five countries, including Russia, the United States, Germany, Canada and Iran, participated in the exhibition. According to the representatives of the organizer and the person in charge of the National Auto Parts Sales Corporation, the number of visitors to the “Auto Parts Matching Conference†was 60,000-80,000, and the number of visitors to the exhibition from other provinces exceeded 80,000, plus local Heilongjiang The professional audience attracted a total of 100,000 spectators in 3 days. The exhibition was strongly supported by the Harbin municipal government. All departments coordinated and ensured the smooth progress of the exhibition, making this exhibition very successful.
Fluorescent brightener for detergents; Fluorescent brighteners for textiles; Fluorescent brighteners for papermaking; Fluorescent brighteners for plastics and synthetic materials; Fluorescent brighteners for other purposes.
"Auto Parts Fair" finished successfully and attracted a total of 100,000 viewers