In today’s society, people pay more and more attention to the harm of harmful substances in textiles and clothing to the human body. Different customers repeatedly ask for harmful substance test reports for export products, which is a waste of energy and financial resources. Obtaining Oeko tex Standard 100 certification can solve all the troubles. At present, almost all countries in the world have their own eco textile label certification, The Oeko tex 100 labels of the International Association for research and testing in the field of Textile Ecology, or the Oeko tex Association for short, has been recognized worldwide.
Oeko tex certification is an authoritative ecological textile standard recognized by the global textile industry. Its testing standards refer to the latest laws, regulations and standard requirements of different countries and organizations in the textile field, such as EU REACH regulations, American Consumer Product Safety Improvement Act CPSIA, etc., and cooperate with green peace, AAFA, American clothing, and Footwear Association, The advocacy of organizations such as zdhc hazardous chemical zero-emission foundation is consistent. Textiles with Oeko tex certification means that the product has passed the detection of harmful substances and obtained the Oeko tex ecological textile label with global influence and authority. For enterprises that have passed Oeko tex certification and obtained Oeko tex label, in addition to enhancing the competitiveness of products in export trade and consumer market, they can also prove the safety of products, so that consumers can buy at ease and meet consumers’ aspirations for a healthy life.
Oeko tex certification system covers the entire textile supply chain. Oeko tex certification has a full range of certified products and services, whether it is the use of chemicals and dye additives at the upstream input end of the supply chain, the control of factory production process (production system), or downstream end products.
Oeko tex Standard 100 main assessment items and sources of toxic substances
- PH value
The surface of human skin is weakly acidic, which is conducive to preventing the invasion of bacteria, so it is directly connected with the skin? The pH value of textiles is between weak acid and neutral, which will not cause skin itching and damage the weak acid environment on the skin surface.
Formaldehyde is harmful to the protoplasm of biological cells. It can combine with proteins in organisms, change protein structure and solidify it. Textiles containing formaldehyde will gradually release free formaldehyde during wearing and use. Through contact with the human respiratory tract and skin, they will strongly stimulate respiratory tract mucosa and skin, causing respiratory tract inflammation and dermatitis. Long-term effects will cause gastroenteritis, hepatitis, finger and toenail pain. In addition, formaldehyde also has strong irritation to eyes. Generally, when the concentration of formaldehyde in the atmosphere reaches 4.00mg/kg, people’s eyes will feel uncomfortable. Formaldehyde in the fabric mainly comes from the finishing process of the fabric. For example, it is used as a crosslinking agent in the crease and shrinkage-resistant finishing of cellulose fibers. In the dyeing of cotton fabrics with direct dyes or reactive dyes, to improve the color fastness to wet friction, it is finished with anionic resin containing formaldehyde.
- Extractable heavy metals
The use of metal complex dyes is an important source of heavy metals in textiles, and natural plant fibers may also absorb heavy metals from soil or air during growth and processing. In addition, some heavy metals may also be brought in during dye processing and textile printing, and dyeing processing. This situation is more serious for children because their absorption capacity of heavy metals is much higher than that of adults. The content of heavy metals specified in Oeko tex Standard 100 is equivalent to that of drinking water.
- Chlorinated phenol (PCP / tecp) and opp
Pentachlorophenol (PCP) is a traditional anti-mildew preservative used in textiles, leather products, wood, and wood pulp. Animal experiments have proved that PCP is a toxic substance with teratogenicity and carcinogenicity to the human body. PCP is very stable, the natural degradation process is long and harmful to the environment, so it is strictly controlled in textiles and leather products. 2,3,5,6-tetrachlorophenol (tecp) is a by-product of PCP synthesis, which is harmful to the human body and environment. Opp is mostly used in the sizing of the fabric printing process. It is a new test item added by Oeko tex Standard 100 in 2001.
Because Oeko texstandard100 certification is for products. When applying for Oeko texstandard100 certification, the applicant can obtain certification for all its different products at one time, or classify the product system and obtain certification one by one according to its plan. In this way, the manufacturer can gradually improve the process on each type of product according to its development, and make a step-by-step plan for itself. Finally, it will be for all? It is also objective and feasible for similar products to obtain certification. Of course, when conducting product certification, domestic applicant manufacturers do not have to worry too much about whether Oeko tex Standard 100 is too high. The regulations and limits of Oeko tex standard 100 on hazardous substances are formulated based on the current scientific cognition of aquatic products and detectable means, taking into account the actual capacity of manufacturing factories have this certification.