| abstract |
Provided is a water-based ink for ink jet recording, which contains a pigment, water, organic solvents, at least one compound selected from among urea compounds, and a binder resin, and which is characterized by containing, as the organic solvents, at least (1) a water-soluble organic solvent having a boiling point of 100-200°C and a vapor pressure of 0.5 hPa or greater at 20°C, (2) propylene glycol, and (3) an organic solvent that is glycerin, diglycerol and/or a derivative of these. It is preferable to incorporate, as a pigment dispersing agent, a polymer (A) which has an anionic group, has a solubility in water of 0.1 g/100 ml or lower, has a number average molecular weight within the range of 1000-6000 and has an acid value within the range of 40-190 mg KOH/g. |