| 摘要 |
Method for obtaining a new leather dye comprising a mixture of tetrakisaze dyes with formulas 1-3, characterised in that 4,4'-diaminodiphenyloamino-2-sulphonate acid is tetrized and obtained tetrazone compound is combined with 1-amino-8-naphtholo-3,6-disulphonate acid, and then produced disaze dye with formula 4 is tetrized and obtained tetrazone compound is combined with a mixture of resorcin and m-phenylodiamine.<IMAGE>
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