| abstract |
An ink-jet ink and an ink-jet recording method which are excellent in continuous jetting property and excellent in optical density, bleeding, intercolor bleeding and drying time are provided. An inkjet ink, which is used in combination with an ink coagulant when printing an image, and includes at least a coloring material, at least one polymer surfactant, and at least one water-soluble solvent, An ink-jet ink characterized in that any one of the above-mentioned polymer surfactants and any one of the above-mentioned water-soluble solvents satisfy the following formulas (1) and (2). ・ Formula (1) | SP (sol) −SP (SA) | ≦ 2.5 Formula (2) W (sol) / W (SA) ≧ 5 [SP (sol) indicates the solubility parameter of the water-soluble solvent, SP (SA) indicates the solubility parameter of the hydrophobic group portion of the polymer surfactant, and W (sol) indicates the content (% by mass) of the water-soluble solvent. ) And W (SA) represents the content (% by mass) of the polymer surfactant. ] [Selection diagram] None |