Cationic azo azine dyes and colorants that contain these compounds

A cationic azo azine dye of the generic formula (I),

• where
• R1 is selected from residues having the formulas (II), (III), (IV), (V), and (VI),
• R2, R4, and R5 can be the same or different and independently from one another are selected from residues having the formulas (VII), (VIII), and (IX);
• R3, R3′, R6, R6′, R7, R7′, and R8 can be the same or different and independently from one another equal hydrogen, a C1-C6-alkylamine group, a C1-C6-N,N-dialkylamino group, a C1-C6-N,N-dihydroxyalkylamino group, a C1-C6-N-hydroxyalkyl-N-alkylamino group, a C1-C6-alkylcyano group, a nitro group, a cyano group, an amino group, a nitroso group, a hydroxyl group, a methoxymethyl group, a tert-butyl group, an iso-propyl group, a C1-C6-alkyl group, a C1-C6-alkyloxy group, a C1-C6-hydroxyalkyl group, a C1-C6-alkylcarboxylic acid group, a C1-C6-alkylcarboxylic acid ester group, a C1-C6-alkylsulfonic acid group, a C1-C6-alkylsulfonic acid ester group, or an —N-(L)-B+-group;
• L stands for a C1-C6 alkylene group and B+ represents a) an aromatic, heterocyclic quaternary ammonium compound or b) a nonaromatic heterocyclic quaternary ammonium compound, or c) a quaternary alkylammonium compound or arylammonium compound of the formula NRaRbRc, where Ra, Rb, and Rc independently from one another indicate a benzyl residue, a phenyl residue or a C1- to C6-alkyl residue, an ethyl residue, a propyl residue, an isopropyl residue or a butyl residue, where the above-named alkyl residues can be unsubstituted or substituted with one or more hydroxyl groups or amino groups, or d) a quaternary phosphonium group;
• R9 equals a branched or linear C1-C6-alkyl group, a branched or linear C2-C4-hydroxyalkyl group or a branched or linear C4-C6-polyhydroxyalkyl group;
• and X− is an anion;
• provided that at least one of the residues R1, R2, and R3 contains at least one cationic group.