4-Aminoazobenzene-Releasing Azo Colorant Detection

ISO 14362-3: Textiles — Methods for determination of certain aromatic amines derived from azo colorants

Properties and Hazards of Azo Colorants

Azo colorants are defined by chemical structures linked by a bond between two nitrogen atoms and are often used to impart color to textiles. However, some azo colorants can undergo chemical reactions in the body, releasing harmful compounds. One of these compounds is 4-aminoazobenzene.

• 4-aminoazobenzene is a compound that can be released when some azo colorants come into contact with the body. This carcinogenic substance can cause harmful effects, especially in contact with the skin.
• Carcinogenic and Toxic Effects: 4-aminoazobenzene and its derivatives may increase the risk of cancer in long-term exposures and may have harmful effects on human health. Therefore, it is important to detect the presence of such compounds in textile products.

The ISO 14362-3 standard provides a way to detect whether such harmful compounds are present in textiles.

What is 4-aminobenzene and What are the Hazards? How to Detect it in Textile Products?

Aminobenzene is used as a dye for lacquers, varnishes, wax products, oil stains and styrene resins. It is used in insecticides. It can also be found in yellow pigments and inks, including inks for inkjet printers. It is also tested for the presence of 4-aminoazobenzene in textiles under certain aromatic amines derived from azo dyes.

Under the test conditions specified in ISO 14362-1, azo dyestuffs containing 4-aminoazobenzene produce the amines aniline and 1,4-phenylenediamine. The EN ISO 14362-3 standard includes the test method for the determination of the use of certain azo colorants that can release 4-aminoazobenzene.

Purpose and Scope of ISO 14362-3 Standard

The ISO 14362-3 standard specifies a test method to determine whether azo colorants, particularly those used in textiles and clothing, are converted into carcinogenic compounds such as 4-aminoazobenzene. This test is applicable not only to colored fabrics, but also to dyed clothing, toys and other textile products.

ISO 14362-3 is typically used in the following situations:

• Product Safety: To detect the presence of harmful substances such as 4-aminoazobenzene in children's clothing, toys and other products in contact with skin.
• Legal Requirements: Many countries prohibit the use of certain azo colorants in textiles. In markets where such laws are in place, the detection of products containing 4-aminoazobenzene is of great importance.
• Quality Control: Manufacturers can use such detection tests in quality control to ensure the safety of their products.

Nanolab Laboratories Group continues to provide services within the scope of Azo Colorant Detection. We also provide services in Textile Analysis.

Contact us for more information.

You can follow us on LinkedIn for up-to-date news and shares about our services.

Follow our Instagram account to be informed about our latest blog posts.