DICHLORODIKETOPYRROLOPYRROLE PIGMENT, COLORING MATERIAL DISPERSION CONTAINING THE PIGMENT, AND PROCESS FOR PRODUCTION OF THE COLORING MATERIAL DISPERSION

摘要

A coloring material dispersion, having: a particle growth inhibitor; and coloring material particulates of a dichlorodiketopyrrolopyrrole pigment, said coloring material particulates having an ± type crystallinity degree from 0.65 to 0.90, a crystallite size from 6.0 to 13.0 nm in a direction of a (-151) crystal face, and a crystallite size of 5.0 to 23.0 nm in a direction of a (111) crystal face.