Patent ID: 8231691

Claim:
A dye of formula wherein Ar is a radical of formula (1 a )-(1 g ), 1( i )-(1 l ) wherein R 1 is hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy or halogen, R 2 is hydrogen, C 1 -C 12 alkyl, halogen or —NHCOR 8 , wherein R 8 is C 1 -C 12 alkyl unsubstituted or substituted by one or more C 1 -C 12 alkoxy groups, hydroxyl groups, amino groups or halogen atoms; C 5 -C 30 aryl unsubstituted or substituted by one or more C 1 -C 12 alkyl groups, C 1 -C 12 alkoxy groups, hydroxyl groups, amino groups or halogen atoms; or C 5 -C 30 heteroaryl unsubstituted or substituted by one or more C 1 -C 12 alkyl groups, C 1 -C 12 alkoxy groups, hydroxyl groups, amino groups or halogen atoms, R 3 is C 1 -C 12 alkyl unsubstituted or substituted by one or more C 1 -C 12 alkoxy groups, hydroxyl groups, amino groups, —COOR 8 groups, —OCOR 8 groups, wherein R 8 is as defined above, or halogen atoms; C 2 -C 12 alkenyl unsubstituted or substituted by one or more C 1 -C 12 alkoxy groups, hydroxyl groups, amino groups or halogen atoms; or C 6 -C 36 aralkyl unsubstituted or substituted by one or more C 1 -C 12 alkoxy groups, hydroxyl groups, amino groups or halogen atoms, R 4 is hydrogen or C 1 -C 12 alkyl, X is oxygen or sulfur, n is 0, m is 2 or 3, Y is —CO—, R 5 , R 6 and R 7 are each independently of the others hydrogen, C 1 -C 12 alkyl, C 1 -C 12 alkoxy, halogen, —CN, —NO 2 , —CF 3 , —COOR 9 or —CONHR 9 , wherein R 9 is C 1 -C 12 alkyl, C 5 -C 30 aryl or C 5 -C 30 heteroaryl, R 10 is hydrogen, C 1 -C 12 alkyl, C 1 -C 12 hydroxyalkyl, C 1 -C 12 cyanoalkyl, C 5 -C 30 aryl or C 6 -C 36 aralkyl, Z 1 and Z 2 are each independently of the other bromine, chlorine, cyano, nitro or trifluoro-methyl, but radicals of formula (1 a ) wherein Z 1 and Z 2 are chlorine are excluded, Z 3 is bromine, chlorine, cyano, nitro, trifluoromethyl or C 1 -C 12 alkyl, Z 4 is chlorine or —CONH 2 , Z 5 is chlorine, bromine, C 1 -C 12 alkyl or C 1 -C 12 alkoxy, Z 6 and Z 7 are each independently of the other hydrogen, bromine, chlorine, cyano, nitro or trifluoromethyl, Z 8 is cyano, nitro or C 1 -C 12 alkoxycarbonyl, Z 9 is hydrogen, bromine, chlorine, C 1 -C 12 alkyl, C 5 -C 30 aryl or C 6 -C 36 aralkyl, and Z 10 is hydrogen, cyano, nitro or —COR 4 , wherein R 4 is as defined above.