CATIONIC AZO DYESTUFFS, THEIR PREPARATION, THEIR USE IN COLOURING SYNTHETIC AND NATURAL MATERIALS, AND COMPOSITIONS CONTAINING THEM

Cationic azo dyestuffs of the general formula wherein X(+) denotes an ammonium group, m denotes 0 or 1, R1 denotes hydrogen, C1- to C4-alkyl, C1- to C4-alkoxy or halogen, R2 and R3 independently of one another denote hydrogen, C1-C4-alkyl, C1- to C4-alkoxy or acylamino, Z denotes halogen or a radica...

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