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