Industry Standard: Pay Attention To The List Of Banned Carcinogenic Dyes

2021/5/17 23:30:00 180

The list of banned carcinogenic dyes is as follows:

1. 104 kinds of direct dyes are prohibited;

2. 33 kinds of acid dyes were banned;

3. 26 kinds of disperse dyes were banned;

4. 15 kinds of chromophores and chromophenols of insoluble azo dyes are prohibited.

There are no reactive and reactive dyes in the dyes, but some of them will be affected from 24 kinds of harmful aromatic amines.

Such as reactive yellow K-r, reactive blue kd-7g, reactive yellow brown K-GR, reactive yellow ke-4rni, etc.
Among the vat dyes, less are banned, but for example, o-aniline is used as raw material for VAT brilliant pink R (C.I. VAT red 173360), and o-aniline is also used as raw material for VAT red Rh (C.I. VAT violet 273385).
The results show that the corresponding soluble vat dyes, i.e. soluble indigo pink IR and indigo red violet IRH, are sulfates of reduced pink R and reduced red violet RH, respectively.

Table: Prohibition of 24 carcinogenic aromatic amines

one	4-aminobiphenyl	thirteen	3,3 '- dimethyl-4,4' - diaminodiphenylmethane
two	Benzidine	fourteen	2-methoxy-5-methylaniline
three	4-chloro-2-methylaniline	fifteen	4,4 '- methylene bis (2-chloroaniline)
four	2-naphthylamine	sixteen	4,4 '- diaminodiphenyl ether
five	4-amino-3,2 '- dimethylazobenzene (o-aminoazotoluene)	seventeen	4,4 '- diaminodiphenyl sulfide
six	2-amino-4-nitrotoluene	eighteen	2-methylaniline
seven	2,4-diaminoanisole	nineteen	2,4-Diaminotoluene
eight	4-Chloroaniline	twenty	2,4,5-trimethylaniline
nine	4,4 '- diaminodiphenylmethane	twenty-one	2-methoxyaniline
ten	3,3 '- dichlorobenzidine	twenty-two	4-aminoazobenzene
eleven	3,3 '- dimethoxybenzidine	twenty-three	2,4-dimethylaniline
twelve	3,3 '- Dimethylbenzidine	twenty-four	2,6-dimethylaniline