METHOD FOR PRODUCTION OF PHTHALOCYANINE PIGMENT NANOPARTICLE DISPERSION; METHOD FOR PRODUCTION OF INK-JET INK FOR COLOR FILTER COMPRISING THE DISPERSION; COLORED PHOTOSENSITIVE RESIN COMPOSITION, PHOTOSENSITIVE TRANSCRIPTION MATERIAL AND COLOR FILTER EACH COMPRISING THE DISPERSION; AND LIQUID CRYSTAL DISPLAY DEVICE AND CCD

摘要

Disclosed is a method for producing a phthalocyanine pigment nanoparticle dispersion, which comprises mixing a phthalocyanine compound solution prepared by dissolving a phthalocyanine compound in an acid or an acid-containing good solvent for the phthalocyanine compound with an organic poor solvent for the phthalocyanine compound to yield a mixed solution which contains a crystal of the phthalocyanine compound formed therein. In the method, a crystal of the phthalocyanine compound having a crystal form selected from the group consisting of α-, β-, γ-, ε-, δ-, π-, ρ-, A-, B-, X-, Y-and R-forms is added to the organic poor solvent or the mixed solution to cause the production of the crystal of the phthalocyanine compound in the mixed solution in the same crystal form as that of the crystal of the phthalocyanine compound added, and an additive having a mass average molecular weight of 1,000 or greater is further added to the mixed solution.;COPYRIGHT KIPO & WIPO 2010