| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water base ink which excels in drying resistance of an ink discharge portion without causing blurring or the like and excels in prevention of bleeding (strikethrough). SOLUTION: The water base ink comprises at least a colorant such as a dye, a pigment, and a fluorescent pigment, a water-soluble organic solvent, one or more substances selected from tartaric acid and/or its salt, malic acid and/or its salt, and water.</p> |
