The chemical testing project of textiles：

As an importer or manufacturer of textiles and footwear products, you need to ensure that hazardous chemicals are excluded from the product and that you meet the limits of chemicals worldwide.

Azo dyes / Carcinogenic dyes / Allergic dyes
Azo dyes are the synthetic dyes commonly used in textile and leather dyeing .Its chemical structure has a nitrogen and nitrogen double bond (N = N).Some azo dyes may produce carcinogenic aromatic amines under certain conditions. In Europe, REACH Regulation (EC) No 1907/2006 Appendix XVII prohibits the use of 22 carcinogenic aromatic amines in textiles and leather. Some of the other dyes used in the textile industry have a negative impact on human health. More than 20 disperse dyes can be sensitized, and nine other dyes can cause cancer. These dyes can be absorbed by the body through the skin during long contact with human skin.

Formaldehyde
Formaldehyde is usually used as a textile cross-linking agent in the care, which gives the textile shrinkage, anti-wrinkle, non-iron and easy to decontamination and other functions. The release of formaldehyde will endanger human health, especially on the human mucosal and respiratory tract strong irritation .

Chlorophenols
Chlorophenols (such as PCP) are often used directly for textiles, leather and wood , In order to prevent causes mildew. PCP is a very toxic substance and is carcinogenic.

Heavy metals
Some dyes and pigments contain heavy metals. Natural fibers may also absorb heavy metals from the soil and in the air during planting. In addition, in the textile dyeing and finishing process, may also bring some heavy metals. Heavy metal once absorbed by the body, will accumulate in the body's liver or kidney and other internal organs, when the accumulation of a certain degree of human health will cause serious damage, such as lead will seriously affect the human nervous system. Heavy metals usually refer to antimony (Sb), arsenic (Pb), cadmium (Cd), mercury (Hg), copper (Cu), hexavalent chromium (Cr VI), total chromium (Cr),Cobalt (Co),nickel (Ni).  Cadmium and lead are carcinogenic. Europe has  limited the use of cadmium, except for certain European regulations, the US "Consumer Product Safety Improvement Act" (CPSIA) also limits the use of lead.

Cr VI
Hexavalent chromium is a harmful by-product mainly producing in the leather chrome tanning process and in the subsequent storage and transportation process will also produce a lot of hexavalent chromium. It is a strong oxidizing agent and is carcinogenic and therefore must be controlled.

Nickel release
Nickel is usually used in clothing metal alloy accessories, such as buttons, zippers, rivets and so on. Some people are allergic to nickel and can cause severe skin irritation when exposed to nickel-containing materials for a long time. EU REACH Regulation (EC) No1907 / 2006 Appendix XVII specifies the limits for nickel release requirements.

Phthalate plasticizer
Phthalates are the most commonly used plasticizers for softening polyvinyl chloride (PVC), others for polyamines (PU) and printing inks. Studies have shown that soft PVC may release a considerable amount of phthalate in the simulated chewing state, which is potentially harmful to young children. Many countries around the world have adopted legislation to limit the use of phthalate plasticizers in children's care products, including the US Consumer Product Safety Improvement Act (CPSIA) and the EU REACH regulations.

TBT, DBT and other organotin compounds
In the textile industry, tributyltin (TBT) is used to prevent microbial decomposition in sweat, so that sportswear thus exudes an unpleasant odor. Some organic tin can also be used for the production of PVC and PU. High concentrations of organotin compounds are considered to be toxic, and these substances can be absorbed by the skin through the skin and may cause reproductive system disorders.

Chlorine-containing organic carrier
Usually used as a dyeing aid for polyester fibers. Chlorine-containing organic compounds can damage the central nervous system and cause dysfunction of the liver and kidneys.

Flame retardant
Commonly used flame retardants are tris (2,3 dibromopropyl) phosphate (TRIS), tris (aziridinyl) phosphine oxide (TEPA), Bis (2,3 Dibromopropyl Phosphate, PBB and PBDE. Long-term exposure to human body and high doses of flame retardants can lead to immune system damage, hypothyroidism, loss of memory and joint stiffness.

PH value
Human skin surface was weak acid, can prevent the occurrence of many diseases. Textiles in the neutral (pH7) or weak acid (lower than pH7) when the human skin is beneficial, if in a strong acidic or alkaline, easy to damage the skin, and even cause allergic reactions.

DMF
Dimethyl fumarate is a volatile compound that is in contact with, inhaled or ingested by the human body, causing irritation and injury to the skin, eyes, mucous membranes and upper respiratory tract. This substance is commonly used as a fungicide and can also be used in desiccant bags to prevent mold, furniture, shoes or leather parts from producing mold during storage or transportation, resulting in product damage. EU-REACH Regulation (EC) Annex XII No 1907/2006 explicitly prohibits dimethyl fumarate.

Alkylphenol (AP) and alkylphenol polyoxyethylene ether (APEO)
Alkylphenols and alkylphenol polyoxyethylene ethers are commonly used as wetting agents in textile processing. EU REACH Regulation (EC) No 1907/2006 annex 17 limits emissions of nonylphenol (NP) and nonylphenol ethoxylate (NPEO). For many years, NPEO has been used as a cleaning agent, emulsifier, wetting agent and dispersant; NP is used as a medium for the synthesis of NPEO. NPEO and NP are highly toxic to aquatic animals and are considered to be water-contaminated. They can destroy the aquatic animal hormone regulation system, resulting in female effect. Among other commonly known alkylphenols and alkylphenol polyoxyethylene ethers, there are octylphenol (OP) and octylphenol polyoxyethylene ether (OPEO).

Perfluorooctane sulfonyl compound (PFOS)
PFOS is widely used in textiles, clothing, carpets, leather and paper anti-grease, oil and water treatment. This substance has strong bioaccumulation and toxicity.