abstract |
(57) [Problem] To provide a water-based ink which is excellent in ejection stability, expresses a sufficient ejection speed at the time of high-frequency printing, and can impart high print density to printed matter. The water-based ink contains a water-dispersible polymer having a water-insoluble colorant and a water-insoluble colorant. The water-based ink contains a water-soluble polymer and a self-dispersible polymer. And the total content is A water-based ink that is 0.01 to 2% by weight. |