| abstract |
An object of the present invention is to provide a pigment aqueous dispersion for an aqueous ink for an ink jet printer, which can obtain a high-density image and is excellent in quick-drying property, fixing property and water resistance without impairing storage stability. The essential component is a compound (A) having a salt group, a rosin skeleton polyol and / or a polyol (B) having an oil or fatty acid-derived molecule in the molecule, an aliphatic or alicyclic diisocyanate (C). An aqueous pigment resin dispersion for water-based ink for an ink jet printer, comprising the aqueous urethane resin (I), a pigment and water. [Selection figure] None |