A non aqueous pigment ink comprising a pigment, a non aqueous solvent, and {TAIL ~ non aqueous resin dispersion microparticles} having a pigment dispersion capability, wherein the non aqueous resin dispersion microparticles are an acrylic polymer comprising {HEAD ~ an alkyl acrylate unit} having an alkyl group of 12 or more carbon atoms and a acrylate unit having a urethane group 
A non aqueous pigment ink comprising a pigment , a non aqueous solvent , and { TAIL ~ non aqueous resin dispersion microparticles } having a pigment dispersion capability , wherein the non aqueous resin dispersion microparticles are an acrylic polymer comprising { HEAD ~ an alkyl acrylate unit } having an alkyl group of 12 or more carbon atoms and a acrylate unit having a urethane group
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