| abstract |
The present invention relates to a water-based ink, which contains a pigment (A), a water-soluble organic solvent (C), a surfactant (D) and water, and the water content is 40% by mass to 65% by mass, and the water-soluble organic solvent ( C) the boiling point of which is 230° C. or lower, the content of the high-boiling organic solvent having a boiling point of 250° C. or higher in the ink is 4 mass % or lower, and the surfactant (D) contains a silicone-based surfactant (d-1) and An acetylenic glycol-based surfactant (d-2), and satisfies the following conditions 1 and 2. According to the present invention, true circular ink dots can be formed, excellent solid filling properties can be obtained even for low liquid absorption recording media, and recorded matter having excellent image quality and scratch resistance can be obtained. Condition 1: [content of ingredient (d-1)/content of ingredient (C)]×100=0.15 to 4; Condition 2: [content of ingredient (d-2)/content of ingredient (C)]×100= 0.35～1.65. |