The said water insoluble coloring material, is 1 genera or more which at least, the C.I. solvent blue 25, the C.I. solvent blue 38

摘要

PROBLEM TO BE SOLVED: To provide a cyan ink for ink-jet recording enabling stable recording of an image having high fastness and excellent picture quality over a long period independent of the recording condition.;SOLUTION: The cyan ink for ink-jet recording is composed of a polymer dispersant, a water-insoluble coloring material, a water-soluble organic solvent and water. The water-insoluble coloring material is one or more materials selected from C.I.Solvent Blue 25, C.I.Solvent Blue 38, C.I.Solvent Blue 44, C.I.Solvent Blue 67 and C.I.Solvent Blue 70, and the polymer dispersant is a block copolymer composed of a hydrophobic block and a hydrophilic block and produced by polymerizing a vinyl ether as the monomer.;COPYRIGHT: (C)2004,JPO&NCIPI