ORGANIC PIGMENT FINE PARTICLES AND METHOD OF PRODUCING THE SAME, PIGMENT-DISPERSION COMPOSITION, PHOTOCURABLE COMPOSITION AND INK-JET INK CONTAINING THE SAME, AND COLOR FILTER USING THE SAME AND METHOD OF PRODUCING THE SAME
申请人:Sasaki Daisuke
公开号:US20100261103A1
公开(公告)日:2010-10-14
Organic pigment fine particles, having capability of self-dispersion, having an organic pigment and a polymer compound, the organic pigment fine particles of being nanometer-sized fine particles obtained by mixing an organic pigment solution and a second solvent, thereby to precipitate the fine particles in the mixed liquid, the organic pigment solution prepared by dissolving the organic pigment and the polymer compound in a first solvent, the second solvent of being served as a poor solvent for the organic pigment and being compatible with the first solvent, in which a compound insoluble in the second solvent is used as the polymer compound, and the organic pigment fine particles are provided with a capability of self-dispersing in a third solvent different from any of the first solvent and the second solvent.