Patent ID: 6613140
Filing Date: 2003-09-02
Classification: C09B,C09D,G03G

Abstract:
A printing ink composition having a tinctorially effective amount of a solution comprising(a) from 80 to 99.9% by weight of an azo pigment I â€ƒwhere M is Mg, Ca, Sr, Ba, or Mn or a mixture thereof, (b) from 0 to 20% by weight of an azo pigment II (c) from 0 to 20% by weight of an azo pigment III â€ƒwhere R1, R2 and R3 independently from each other stand for hydrogen, C1-C20-alkyl, C5-C20-alkoxy, C2-C20-alkenyl, C1-C20-alkylthiol, C1-C20-alkoxycarbonyl, hydroxy-C1-C4-alkoxy, phenyl, benzyl, phenylthio, halogen, cyano, nitro, â€”CF3, â€”COR4, â€”COOR5, â€”CONR4R5, â€”SO2R4, â€”SO3R4, â€”SO2NR4R5, â€”NR4R5 or â€”OR4, with the proviso, that when in formula III R2 stands for hydrogen and R3 is CF3, then R1 is not â€”SO3âˆ’, â€ƒand wherein R4 and R5 independently from each other stand for, C1-C4-alkyl or phenyl, with the proviso, that at least one of the groups R1, R2 or R3 is not hydrogen, (d) from 0 to 20% by weight of an azo pigment IV (e) from 0 to 20, based on the sum of the amounts of components (a) to (d), of a surfactant, (f) from 0.1 to 50% by weight, based on the sum of the amounts of components (a) to (d), of a resin selected from the group consisting of tall oil resin, gum rosin, wood rosin, hydrogenated rosin, rosin ester, disproportionated rosin, dimerised rosin, polymerised rosin, phenolic rosin and carboxyl containing maleic and fumaric resin.