TURCERT firstly evaluates the AZO-FREE certification process in five stages.

AZO-FREE for Azo-Free Certification, Sample acceptance, Tests, Evaluation; Approval, Certification.

Azo dyes are organic compounds containing azo function (N = N-). The azo function is usually attached to an aromatic ring, and then the dye can be broken down into an aromatic amine, arylamine. This can take place chemically, through 'reductive cleavage' or through the body's own enzyme system. Some azo dyes can also be separated into arylamines during storage due to light and high temperature. Some arylamines were considered carcinogenic. The most known is aniline. It is important to remember that not all azo dyes are based on arylamines.

Azo dyes are used for dyeing textile fibers, especially cotton, silk, wool, viscose and synthetic fibers. They are thought to provide powerful colors that are easy to use, relatively inexpensive and clear. There are about 2000 azo paint on the market.

Most of the azo dyes are water soluble and therefore easy for the body to absorb, which is achieved by inhalation and ingestion of the powder and skin contact. Azo dyes may also be toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment.

Arylamines emitted from azo dyes are likely to be absorbed by the skin and accumulate in the body. There is a risk of exposure when wearing clothing or accessories containing azo dyes or when sleeping on these bedspreads. Some of the arylamines are also stable in the event of skin contact, allergies, eye irritation, toxicity by inhalation, very toxic by inhalation or inhalation, skin contact and ingestion. Some arylamines are thought to be toxic or very toxic to aquatic organisms and may cause long-term adverse effects in the aquatic environment, where you can search the classification list.

Within the EU, the processing of certain textiles and leather goods with azo dyes capable of releasing carbogenic arylamines is prohibited; Directive 2002 / 61 / EC.

AZO dyes are the names of nitrogen-based synthetic dye groups frequently used in the textile industry. Some AZO dyestuffs can split under certain conditions to produce carcinogenic and allergenic aromatic amines.

EU AZO Colorants Directive 2002 / 61 / EC States that there are no Azo dyes that can release one or more of the 22 aromatic amines (see table below) in detectable concentrations above 30 ppm in finished articles or dyed components. Can be in direct and prolonged contact with human skin or oral cavity tekstil ve deri used in items. The Directive entered into force in September 2003.

Since Annex XVII of REACH entered into force in 2009, the AZO Directive 2002/61 / EC was replaced by the REACH regulation. AZO dyes are put in the REACH Restriction List.

 For AZO-FREE certification and certification, please contact TÜRCERT.