COLORANT COMPOUND, PIGMENT DISPERSANT CONTAINING THE SAME, PIGMENT COMPOSITION, AND PIGMENT DISPERSION

摘要

PROBLEM TO BE SOLVED: To provide a colorant compound having a high solubility to an organic solvent and improved in dispersibility of an azo pigment to the organic solvent. SOLUTION: The colorant compound is a pyrazolone azo compound, and represented, for example, by formula (D-1). COPYRIGHT: (C)2011,JPO&INPIT