| 摘要 |
PROBLEM TO BE SOLVED: To obtain an ink-jet ink having an improved printing reliability. SOLUTION: This ink-jet ink composition contains 30-90 wt.% of water; 0.5-30 wt.% of a pigment; 0.05-2 wt.% of an aromatic sulfonate or disulfonate containing sodium p-toluenesulfonate, sodium 2,5-dihydroxybenzenedisulfonate monohydrate, sodium p-hydroxybenzenesulfonate, or sodium p- aminobenzenedisulfonate; and 10-50 wt.% of a moisturizing agent containing a polyhydric alcohol. |
