| abstract |
A pigment aqueous dispersion excellent in continuous ejection stability, storage stability and solvent resistance when blended in an ink and a method for producing the same are provided. [1] A pigment aqueous dispersion containing crosslinked polymer particles containing a pigment, wherein the crosslinked polymer contained in the particles is a polymer crosslinked with a crosslinking agent represented by the general formula (1). A pigment water dispersion, and [2] a method for producing a pigment water dispersion comprising crosslinked polymer particles containing a pigment, comprising the following steps (1) and (2). Step (1): A step of dispersing a pigment mixture containing a pigment, a water-dispersible polymer, and water to obtain a pigment aqueous dispersion containing polymer particles containing the pigment Step (2): In step (1) The pigment aqueous dispersion and the crosslinking agent represented by the general formula (1) are mixed, the water-dispersible polymer and the crosslinking agent are reacted, and the pigment includes crosslinked polymer particles containing the pigment. Step to obtain water dispersion [selection figure] None |