The commonly used pre-treatment additives include desizing agents, cleaning agents, scouring agents, penetrating agents, oxygen bleaching stabilizers, chelating agents, etc. Most of these additives are surfactants, organic compounds, inorganic salts, and solvents. The most commonly used surfactants are anionic and non ionic surfactants, and there are also a small amount of amphoteric surfactants. Among them, anionic surfactants are mostly used: sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium butyl naphthalene sulfonate, sodium dodecyl sulfate, sodium alkyl sulfate, sulfated castor oil, sodium sulfosuccinate, etc. Non ionic surfactants are mostly used: fatty alcohol polyoxyethylene ether, Alkylphenol polyoxyethylene ether, coconut oil polyoxyethylene ether, sorbitol polyoxyethylene ether, alkyl alcohol amide, ethylene oxide propylene oxide copolymer, etc

Most of the pre-treatment aids are a combination of non ionic surfactants and anionic surfactants. In the manufacturing of these products, if the raw materials are selected improperly, not only will the product quality be problematic, but the product also cannot meet environmental requirements or a certain indicator cannot meet environmental indicators. For example, in the production of scouring agents or detergents, nonylphenol polyoxyethylene ether (TX-10) and sodium dodecylbenzene sulfonate (LAS) are often added. Although the former can be biochemical treated, the decomposed products after biochemical treatment are still phenols, which have fish toxicity and can damage the human reproductive system, Nonylphenol has been listed as one of the 70 environmental hormones (also known as endocrine disrupting chemicals) that are restricted for use in the international market, and some European countries have passed laws prohibiting its use. Therefore, when developing environmentally friendly products, it is recommended to fully use or reduce the use of nonylphenol polyoxyethylene ether, and to adopt natural fatty alcohol polyoxyethylene ether, dehydrated sorbitol ester, and dehydrated sorbitol ethoxy compounds