There are two main categories of banned dyes used in textiles, one is allergenic dyes and the other is carcinogenic dyes. Allergenic dyes can enter the human body through the skin during contact with human skin, which can cause an allergic reaction to the skin or certain organs, thereby affecting the health of the human body. Carcinogenic dyes are absorbed through the skin and can produce carcinogenic aromatic amines in the process of decomposition in the human body, thus causing cancer. https://www.alfachemic.com/testinglab/service/textile-banned-dyes-testing.html