| abstract |
A method for producing a water-based pigment dispersion excellent in productivity and storage stability by a film treatment method, a water-based pigment dispersion for ink-jet recording obtained by the method, and a water-based ink for ink-jet recording containing the same. provide. [1] An electrolyte is added to an aqueous dispersion having a solid content concentration of 15% by weight or more obtained by dispersing a mixture containing at least a pigment, a water-insoluble polymer and water, and the aqueous dispersion Of the water-insoluble polymer that is not adsorbed on the pigment before the film treatment is maintained while maintaining the conductivity of the water within the range of [conductivity of water dispersion before film treatment ± 25%]. A method for producing an aqueous pigment dispersion to be removed, [2] an aqueous pigment dispersion for inkjet recording obtained by the method, and [3] an aqueous ink for inkjet recording containing the aqueous pigment dispersion. [Selection figure] None |