CATIONIC AZO DYESTUFFS, THEIR PREPARATION, THEIR USE IN COLOURING PAPER AND COMPOSITIONS CONTAINING THEM

1. Process for dyeing paper, characterised in that cationic azo dyestuffs of the general formula see diagramm : EP0024321,P8,F4 which can be symmetrical or asymmetrical, and wherein X**(+) denotes an ammonium group, m denotes 0 or 1, R1 denotes hydrogen, C1 - to C4 -alkyl, halogen or C1 -C4 -alkoxy,...

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