abstract |
(57) [Problem] To provide an ink composition for ink-jet recording that achieves both water resistance of a printed matter and a high-quality recorded image on a special recording medium. SOLUTION: An ink composition containing a combination of a water-soluble colorant such as an acid dye, a cationic water-soluble polymer such as polyallylamine, and an inorganic salt such as potassium chloride is used. |