azo dyes with a diazo component of the series of aminobenzophenones, also disulfonated compounds pyridone.

The invention relates to a dye OF AZOBENZOFENONA of formula (I) NEW pyridone compound, a process for preparing compounds pyridone disulfonated WELL AS THE IMPLEMENTATION OF NEW DYE COLORING SUBSTRATES NATURAL OR SYNTHETIC AND REFERS TO NEW COMPOUNDS pyridone . Where: A RING THAT CAN BE BRIDGED BENZOANILLADO; R1, R2, R3, independent of each other, hydrogen, halogen, C 1 to 12, cyclohexyl, phenyl, 2 LCOXI C 1 to 4; R4 hydrogen, halogen or C 1 to 4 BEING ONE OF THE water solubilising groups in the molecule; K a residue of a binding component; X1 and X2 hydrogen or hydroxysulfonyl; And hydrogen or arylazo; M 1 O 2; AND L1 LINK ELEMENT CHEMICAL OR BRIDGE. IF M = 1 EY hydrogen and X1 and X2, R4.