With the improvement of material living standards, people's requirements for textiles are no longer limited to basic characteristics such as warmth and comfort. The development of functional textiles meets the special needs of textiles in the growing national economy and defense construction, providing fundamental guarantees for the survival, development, and prosperity of enterprises. Textile printing and dyeing auxiliaries belong to the fine chemical industry of textiles. Textile printing and dyeing auxiliaries not only increase the added value of textiles and improve their quality, but also play a crucial role in the matching and promotion of dye products. Printing and dyeing auxiliaries can be divided into pre-treatment agents, dyeing auxiliaries, printing auxiliaries, and finishing auxiliaries. Pre treatment agents: including penetrating agents, refining agents, oxygen bleaching stabilizers, chelating agents, extractants, etc; Printing auxiliaries: including adhesives, thickeners,

According to their different chemical structural characteristics, textile auxiliaries are mainly divided into two categories: surfactants and polymers. Surfactants can be classified into anionic, cationic, amphoteric, and nonionic types based on their ionic properties. Anionic surfactants can be classified into fatty carboxylic acid salts, fatty alcohol sulfate salts, alkyl sulfonate salts, alkylbenzene sulfonate salts, and phosphate ester salts based on their hydrophilic groups. As the surface active agent with the longest application history, the largest usage, and the lowest price, anionic surface active agents have excellent cleaning, emulsification, and solubilization effects. They are mainly used as detergents, wetting agents, refining agents, and leveling agents in textile processing. Cationic surfactants can be classified into primary amine salts, secondary amine salts

Textile printing and dyeing auxiliary products, as one of the important raw materials for textile printing and dyeing, are used to improve the quality of textile printing and dyeing and increase the added value of textiles. The textile printing and dyeing auxiliaries industry is the application technology of fine chemical products in the textile printing and dyeing industry, belonging to the edge science of chemical and printing and dyeing, and has the following industry characteristics. 1¡¢ Additives are a small branch of fine chemicals with low fixed investment, high added value, and high profits, possessing all the characteristics of fine chemicals. The investment in fixed assets is closely related to the characteristics of its products. As is well known, there are many varieties and small tonnages of textile printing and dyeing auxiliaries, and their production methods are different from other organic and inorganic chemicals. They have a short process, few unit reactions, and most