The safety requirements of textile auxiliaries are the necessary indicators for the selection of additives in the textile industry.It describes the basic safety requirements of today's textile auxiliaries: (1) VOC-free (non-volatile organic compounds); (2) (No formaldehyde or low formaldehyde); (3) no DS (no risk of chemical substances); (4) no EH (no environmental hormones); (5) no PFOS and PFOA (perfluorooctane sulfonate and Acylate and perfluorooctanoic acid); (6) no AOX (no adsorption of organic halide), and put forward the market demand for textile safety trends, and further elaborated the textile aids in the disabled and restricted chemical substances in the new developments: 1) restrictions on polyhalogenated dibenzo-p-dioxins and polyhalogenated dibenzofurans are more stringent; (2) fluorinated greenhouse gases are banned; (3) new restrictions on flame retardants and so on.
Textiles in the production process to use a variety of chemicals, regardless of the type or quantity analysis, the most used is a textile auxiliaries.According to incomplete statistics, the current annual output of the world's textile auxiliaries more than 4.5 million t, A total of nearly 100 categories, about 16,000 varieties, the annual consumption of 4.3 million t in these textile auxiliaries, many varieties contain or in the course of the use of human health and ecological environment will produce harmful chemicals ,Textile Auxiliaries When people use and wear these textile auxiliaries containing textiles and clothing, residual in the textile products on the harmful substances will cause harm to human health and the ecological environment, so many international countries and organizations on a variety of textile auxiliaries Conducted a detailed toxicology and ecotoxicological research, and promulgated the ban on and restrictions on textile auxiliaries of the regulations, of which the main European.
With regard to the content of formaldehyde (FA) in textile auxiliaries, laws and regulations have been promulgated very early at home and abroad. Recently, many regulations and standards on the international market and the restrictions on formaldehyde content in brand of textile distributors have been more stringent. In accordance with these requirements, domestic and foreign textile auxiliaries production enterprises have developed a lot of low formaldehyde (formaldehyde content <75 × 10-6) and formaldehyde-free additives to replace formaldehyde-containing additives, including fixing agent, anti-wrinkle-free Finishing agents, adhesives, crosslinking agents, dispersants, flame retardants and waterproof and anti-oil agent, etc. From the current situation analysis,Textile Auxiliaries to replace a certain basis, to do textile auxiliaries without formaldehyde or low formaldehyde is possible.
At present in the textile auxiliaries do not have halogen-containing organic compounds there is a certain degree of difficulty, such as in recent years has developed a number of halogen-containing organic carrier to replace the halogen-free carrier such as N-methyl phthalimide, N-naphthyl horse Such as imidazole, Procar DCR, diethylene glycol monobutyl ether and N-cyclohexylpyrrolidone. However, there are still many problems in promoting application and economy. The newly developed products are treated with 85% divethylene Alcohol and 10% N-cyclohexylpyrrolidone is a good substitute, the price is moderate, the goods for the Swelling agent G, but the recovery of mixed solvents need to be resolved; flame retardant finishing agent although the development of some halogen-free New varieties such as double ring cage phosphoric acid ester derivative flame retardant,Textile Auxiliaries organic boron flame retardant, organic compound and inorganic nitrogen salt complex, alkyl phosphoric acid nitrogen derivative flame retardant, but the current market mainstream varieties Even the newly developed varieties are still organic halides, which contain adsorbable organic halides, and it can be seen that in order to ensure the safety of textiles, the six basic safety requirements for textile auxiliaries are EH and no AOX and so there is no other Issues, which is what today's textile auxiliaries security in the public interest.
In recent years, the detection of textiles in China found that a considerable part of the environmental hormones are related to the first place is associated with environmental hormone alkyl phenol directly linked to alkyl phenol polyoxyethylene ether (APEO); second Is the environmental hormone phthalate esters compounds, which are mainly used for coating finishing, soft finishing, plastisol printing and coating dyeing, etc. At present, China's annual output of phthalate compounds is very large, about 150 But the performance has yet to be improved; the third environmental hormone is organotin compounds, (TBT), tetrabutyltin (TeBT), tricyclohexyl tris (TCyHT),Textile Auxiliaries octyltin (MOT), dioctyltin (DOT), trioctyltin (TOT), butyltin (MBT), dibutyltin (DBT), tributyltin (TBT) (TPHT), tripropyltin (TPT), and so on. There are six varieties, DBT, TBT, TCyHT, TOT, TPhT and TPT, which are currently in addition to monomer polymerization When used as a catalyst, polymer stabilizer or in the anti-corrosion coating will be brought to the textile On the outside, no longer used as a fungicide for textiles.
Obviously there are some non-EH in textile auxiliaries, there is still a certain degree of difficulty, we must strengthen the technological innovation and development of new products,Textile Auxiliaries strengthen the management and testing to eliminate pollution sources, the current focus is to solve the alkylphenol polyoxyethylene ether And the substitution of phthalic acid esters.