Main monitoring contents of ecological textiles

International trade in textiles and clothing, on the quality requirement of products from traditional usability, aesthetics, durability, and so turned to the security and environmental protection. Textiles and apparel in the world’s major importing countries and regions have adopted legislation or the development of appropriate standards on the safety of imports of textile and apparel strict monitoring. To sum up, its main monitor reads as follows: 1. Banned azo dyes. Varieties of synthetic dyes in circulation on the market today there are about 2000 species, which 70% is based on the azo chemicals, these dyes chemical structure from the point of view, there is no carcinogenic aromatic amines, but because of residual intermediate in the synthesis process isolation is not complete and there may still be detected carcinogenic aromatic amines, so that the final product fails the test. 2. Carcinogenic dyes. Carcinogenic dye is without restoring the chemical changes of human carcinogenesis induced by dye, known cancer-causing dye seven, carcinogenic dyes in textiles is disabled. 3. Extractable heavy metals. Metal complex dyes are an important source of heavy metals in textiles, and during the growth of the natural plant fibers also have the potential to absorb heavy metals from the soil and air. In addition, dye and textile printing and dyeing and processing may also be brought into the part of heavy metal in the process. In fact, textiles may contain heavy metals in the vast majority are not in the free State, will not cause harm to the human body. So-called extractable heavy metals is to mimic the human environment, to artificial acidic juice extraction on samples and ICP, AAS and UV-VIS instrument analysis methods for the determination of extractable heavy metals enter the body and may cause harm to the health of these metals including arsenic, lead, chromium, antimony, mercury, cobalt, nickel, also on the determination of the control indicators. 4. Free formaldehyde content. Textiles in the process of wear or use of formaldehyde-containing some not free formaldehyde Crosslinking or hydrolysis produced will be released, causing harm to human health, national regulations or standards are the free formaldehyde content of products is strictly limited. 5. PH value. Human skin is slightly acidic to prevent pathogen of immersion, so textiles maintained between slightly acidic and neutral pH values conducive to the protection of the human body. 6. Nitrogen-containing organic carrier. Carrier dyeing of polyester fiber pure yarn and blended products is common dyeing process, carrier dyeing helps disperse dyes at normal pressure under the condition of boiling dye on polyester fiber dyeing. Three dyeing carrier of chlorobenzene, dichloro-toluene is efficient, but chlorine-containing aromatic compounds are harmful to the environment, human potential teratogenic and carcinogenic in nature. 7. Pesticides. Natural plant fibers such as cotton growing is used in a variety of pesticides, such as insecticide, herbicide, Agent Orange, fungicides, and so on. Use of pesticides in cotton growth, some is absorbed by the fiber, although most textile processing absorbed pesticides will be removed, but there are still some residue on the final product. 8. Color fastness. Eco-colour fastness of textiles standards, select four as monitor contents, and wear or use directly related to the textile color fastness and the human body, such as water, perspiration (acid/alkaline), abrasion (dry/wet) and saliva and perspiration. Saliva and perspiration fastness of baby clothes is particularly important. Governments standardizing bodies on ecological textile monitoring regulations and standards do not fully consolidated, here involves the level of economic development of the countries and regions, product end use method for maturity and the practical feasibility of implementation, and many other issues, on ecological textile monitoring indicators are also slightly different. But generally speaking, eco-textiles will dominate the future of the international textile and apparel trade market.