Textile Auxiliariesin 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 or so. In these textile auxiliaries, there are many varieties containing or in the course of the use of human health and ecological environment will produce harmful chemicals, when people use and wear these textile auxiliaries containing Textile Auxiliariesand clothing, residual in the textile products On the harmful substances will cause harm to human health and ecological environment, so many international countries and organizations on a variety of textile auxiliaries for a detailed toxicology and ecotoxicology research, and promulgated the ban and limited use of textile help Agents of the regulations, of which the main European.
The national market on the provisions of the ban and restrictions on textile auxiliaries for a rough statistics, the current international market ban and limit the use of textile auxiliaries have more than 18 categories of nearly 3,000 varieties. Although they are for eco-Textile Auxiliariesthat are on the safety of textile auxiliaries and ecological requirements, but in accordance with the requirements of the international market, the general textile can not contain harmful chemicals, or high technical quality of the textile is still high security or Said the quality of substandard products.
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 water and oil repellent. From the current situation analysis, to replace the already a certain basis, to do a textile auxiliaries without formaldehyde or low formaldehyde is possible.
In recent years, the detection of Textile Auxiliariesin 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), octyltin (MOT), dioctyltin (DOT), trioctyltin (TOT), butyltin (MBT), dibutyltin (DBT), tributyltin (TBT) (TPHT), tripropyltin (TPT), and so on. There are 6 varieties including DBT, TBT, TCyHT, TOT, TPhT and TPT. They are currently used as a catalyst, as a stabilizer for polymers or in anticorrosive coatings, and are no longer used as a bactericide 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, 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.