| abstract |
An aqueous pigment-dispersed recording liquid that provides a printed matter having high dispersion stability and ejection properties and excellent gloss is provided. SOLUTION: A pigment, a polymer containing a cationic monomer structural unit and a hydrophobic monomer structural unit (hydrophobic group-containing cationic polymer), and a polymer containing an anionic monomer structural unit and a hydrophobic monomer structural unit (hydrophobic) Group-containing anionic polymer), and an aqueous pigment dispersion in which the number of anionic groups contained in the hydrophobic group-containing anionic polymer is 1.0 to 8 with respect to the number of cationic groups contained in the hydrophobic group-containing cationic polymer. The hydrophobic monomer structural unit / anionic monomer structural unit (molar ratio) in the hydrophobic group-containing anionic polymer is 5/95 to 50/50, or the pigment content to the solid content is 51% by weight or more. After the pigment is dispersed with the hydrophobic group-containing cationic polymer, ultrafiltration / microfiltration is performed, and the hydrophobic group-containing anionic polymer is further added to produce this aqueous pigment dispersion. [Selection figure] None |