Patent ID: 7544217

Claim:
A dye mixture comprising (A) from 20 to 80% by weight of one or more compounds of formula (1) wherein R 1 is C 1 -C 12 alkyl, or C 2 -C 12 alkyl interrupted by one or more oxygen atoms and/or —COO— groups and R 2 , R 3 , R 4 and R 5 , each independently of the others, is hydrogen, C 1 -C 12 alkyl, chlorine, bromine, hydroxy or amino and (B) from 20 to 80% by weight of at least one compound of formulae (2)-(12) wherein R 6 is C 1 -C 12 alkyl, or C 2 -C 12 alkyl interrupted by one or more oxygen atoms and/or —COO— groups and R 7 , R 8 , R 9 and R 10 , each independently of the others, is hydrogen, C 1 -C 12 alkyl, chlorine, bromine, hydroxy or amino, with the proviso that the radical R 6 in formula (2) is different from the radical R 1 in formula (1), X is the radical of a coupling component from the benzene, indene or carbazole series, R 11 and R 12 , each independently of the other, is Cl, Br, CF 3 or CN, R 13 is C 1 -C 12 alkyl, C 5 -C 24 aryl or C 6 -C 30 aralkyl, R 14 is H, Cl, Br or C 1 -C 12 alkyl, R 15 and R 16 , each independently of the other, is H, Cl, Br, C 1 -C 12 alkyl, C 1 -C 12 alkoxy or —COOR 33 , wherein R 33 is C 1 -C 12 alkyl or C 1 -C 12 alkoxy-C 1 -C 12 alkyl, R 17 is C 1 -C 12 alkyl or C 1 -C 12 alkoxy-C 1 -C 12 alkyl, R 18 and R 19 , each independently of the other, is H, Cl, Br, C 1 -C 12 alkyl, C 1 -C 12 alkoxy or —COOR 33 , wherein R 33 is as defined hereinabove, R 20 and R 21 are H, Cl, Br, CF 3 or CN or R 20 and R 21 together form a six-membered aromatic or cycloaliphatic ring, Y is the radical of a diazo component of the benzene, naphthalene, diphenyl, azobenzene, thiophene, benzothiazole, benzisothiazole, thiadiazole, indazole, benzotriazole, pyrazole, chromone, phthalimide or diphenylene oxide series, R 22 is H, C 1 -C 12 alkyl or C 1 -C 12 alkoxy-C 1 -C 12 alkyl, R 23 is H, Cl, Br, C 1 -C 12 alkyl, C 1 -C 12 alkoxy or —COOR 33 , wherein R 33 is as defined hereinabove, R 24 , R 25 and R 26 , each independently of the other, is H, Cl, Br, OH, C 1 -C 12 alkyl, C 1 -C 12 alkoxy or —COOR 33 , wherein R 33 is as defined hereinabove, R 27 and R 28 , each independently of the other, is H, Cl, Br or C 1 -C 12 alkyl, R 29 and R 30 , each independently of the other, is H, Cl, Br, OH, C 1 -C 12 alkyl, C 1 -C 12 alkoxy or —COOR 33 , wherein R 33 is as defined hereinabove, and R 31 and R 32 are C 1 -C 12 alkyl, C 5 -C 24 aryl or C 6 -C 30 aralkyl, the sum of components (A)+(B) being 100% by weight.