摘要 |
A pigment dispersion comprising a colour pigment represented by formula (I) wherein, R1 is selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group, -CF<SUB>3</SUB> , -COOH, -COOCH<SUB>3</SUB> and; R2, R4 and R5 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group,-CF<SUB>3</SUB> , -COOH and -COOCH<SUB>3</SUB>; R3 is selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group,-CF<SUB>3</SUB>, -COOH, -COOCH<SUB>3</SUB>, -SO<SUB>2</SUB>NH-C<SUB>6</SUB>H<SUB>5</SUB>, -CONH-C<SUB>6</SUB>H<SUB>5</SUB>, -CONH-C<SUB>6</SUB>H<SUB>5</SUB>-CONH<SUB>2</SUB> and -CONH<SUB>2</SUB> ; R6 and R7 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, a methoxy group, an ethoxy group,- CF<SUB>3</SUB> , -COOH and -COOCH<SUB>3</SUB>, or R6 and R7 represent the necessary atoms to form an imidazolone ring; and a polymeric dispersant having via a linking group covalently linked to its polymeric backbone at least one pending chromophore group which has a molecular weight smaller than 95% of the molecular weight of said colour pigment. The pigment dispersion can be advantageously used in inkjet inks. |
申请人 |
AGFA-GEVAERT;JAUNKY, WOJCIECH;DEROOVER, GEERT;LOCCUFIER, JOHAN;GROENENDAAL, LAMBERTUS |
发明人 |
JAUNKY, WOJCIECH;DEROOVER, GEERT;LOCCUFIER, JOHAN;GROENENDAAL, LAMBERTUS |