| abstract |
A problem to be solved by the present invention is to provide a pigment dispersion paste that is excellent in dispersibility and stability of an aromatic ring-containing pigment even at a high pigment concentration. A pigment dispersion resin containing 1 to 70% by mass of a polymerizable unsaturated monomer having a naphthyl group, a pigment dispersion paste containing an aromatic ring-containing pigment, and a solvent, or an alkyl group or an alkoxy group in the naphthyl group. Pigment dispersion paste having any functional group selected from hydroxyl group, sulfonic acid group, carboxyl group, amino group, nitro group, halogen atom, aryloxy group, alkylthio group and arylthio group. [Selection figure] None |