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HT-305 bs reduction inhibitor is used for some disperse dyes with azo structure and high fastness. These dyes are very sensitive to reducing substances, which often lead to reduction and decolorization or agglomeration. HT-305 bs is to ensure that such dyes are not destroyed when faced with reducing substances. Generally speaking, there will be reducing substances in dyeing and finishing water. In addition to artificially added reducing agents, they are mainly from nitrogen and sulfur oxides in the air, and the most common is sulfur dioxide, which mainly comes from man-made combustion. The common phenomenon is "acid rain". In areas with severe acid rain, the content of sulfur dioxide is high and there are many reducing substances in the water.
