In the textile industry, in the various processing procedures from spinning, spinning, weaving, printing and dyeing to finished products, different auxiliary chemicals are required according to the performance of various fibers to improve the quality of textiles, improve processing effects, increase production efficiency, and simplify Process, reduce production costs and give textiles various excellent application properties. This auxiliary chemical is commonly known as textile dyeing and finishing auxiliaries.

Dyestuff selection is an important link in process design. It not only affects dye quality, but also directly affects product cost and economic benefits. The choice of dye category should generally be based on factors such as fiber raw materials, color characteristics, fastness requirements, processing costs, equipment conditions, and environmental protection requirements. The dyeing process should be determined according to the dye type, production batch, equipment conditions, production cost and other factors, and combined with the actual situation of the factory.