| 摘要 |
PROBLEM TO BE SOLVED: To provide ink capable of printing an image excellent in abrasion resistance while satisfying intermittent discharge stability.SOLUTION: There is provided an ink jet ink which contains a pigment and a urethane resin, wherein the pigment is at least one of a pigment in which an anionic group is bonded to the particle surface directly or via other atomic group and a pigment which has an anionic unit and is dispersed by a resin different from the urethane resin, the urethane resin contains a unit derived from a polyfunctional polyisocyanate having at least one structure selected from the group consisting of an allophanate structure to which a monohydric alcohol having 1 to 5 carbon atoms is added, an uretdione structure, an isocyanurate structure and a biuret structure, and the urethane resin has an acid value of less than 10 mg KOH/g. |
