What harmful substances do dyes and pigments suppliers have?
The harmful substances involved in the production of dyes and pigments mainly include the following types:
harmful chemical
Carcinogenic substances
Benzidine (a kind of carcinogen, causing bladder cancer risk)
Aromatic amine compounds (some azo dyes contain carcinogenic aromatic amines)
Polycyclic aromatic hydrocarbons (such as benzo [a] pyrene, carcinogenic)
Heavy metals and harmful elements
Lead, mercury, cadmium (some pigments contain heavy metals)
Chromium (inorganic pigments may contain hexavalent chromium)
Other toxic substances
Formaldehyde (some dyes contain formaldehyde derivatives)
Benzene derivatives (such as benzene, harmful to the respiratory system)
Chlorobenzene (affecting ecosystems)
Environmental Protection and Prohibition of Dyes
Azo dyes, sulfide dyes, and vat dyes containing carcinogenic aromatic amines have been banned in many countries. For example, the use of benzidine dyes is widely restricted due to their toxicity.
It is recommended to choose suppliers that meet environmental standards and pay attention to whether the products contain the above-mentioned prohibited substances.