| abstract |
(57) [Summary] [Structure] A water-based pigment dispersion characterized by containing at least a pigment, an alkali-soluble resin dispersant, a surfactant and water. The production method is a pigment, a surfactant and water. The method is characterized in that it has a step of dispersing the mixture of 1) by a disperser, and then adding an alkali-soluble resin dispersant and performing adsorption exchange. [Effect] The water-based pigment dispersion liquid of the present invention does not change the pigment particle size even if it is repeatedly frozen and thawed, not only when the temperature condition is changed, but also when the temperature is from room temperature to high temperature. Can be suitably used as. |