| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-based ink composition having long-term ink preservation stability and affording high image quality and sufficient image preservability, and to provide a method of forming images having high quality and sufficient preservability. SOLUTION: This water-based ink composition is characterized in that a precursor convertible to an insoluble pigment by at least one means selected from among chemical means, thermal means, photolytic means and radiative means is dissolved in a water-based solvent. |
