| 摘要 |
PROBLEM TO BE SOLVED: To provide an aqueous ink capable of recording images excellent in image clarity and having suppressed aggregate of a pigment even after freezing.SOLUTION: There is provided an aqueous ink for inkjet containing a pigment, a resin dispersant for dispersing the pigment, a fluorine-based surfactant and a water-soluble organic solvent. Acid value of the resin dispersant is 150 mgKOH/g to 200 mgKOH/g, the water-soluble organic solvent contains a water-soluble organic solvent having dielectric constant of 40.0 or more A and a water-soluble organic solvent having dielectric constant of 3.0 to 20.0 B, the content a of the water-soluble organic solvent A (mass%) is 2.0 times or more by a mass ratio to the content of the pigment p (mass%), the content b of the water-soluble organic solvent B (mass%) is 0.6 times or more by mass ratio to the content a of the water-soluble organic solvent A (mass%) and the content b of the water-soluble organic solvent B (mass%) is 10.0 times or more by mass ratio to the content of the fluorine-based surfactant f (mass%).SELECTED DRAWING: Figure 2 |
