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|1. (WO2018021120) PROCESS FOR PRODUCING PIGMENT DISPERSION|
|Title:||PROCESS FOR PRODUCING PIGMENT DISPERSION|
A process for producing a pigment dispersion which comprises a step (A) in which a composition comprising a pigment, a polymeric dispersant, a water-soluble organic solvent, and water is obtained and a step (B) in which the pigment contained in the composition obtained in the step (A) is dispersed with a dispersing machine to obtain a pigment dispersion, the pigment comprising a compound represented by the general formula (1) given in the description, a tautomer thereof, or a salt of either, the polymeric dispersant being a polymer having repeating units represented by the general formula (2-1) given in the description and repeating units represented by the general formula (2-2) given in the description, and the water-soluble organic solvent being at least one compound selected from among glycerin, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,2-hexanediol, and diglycerol.