| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink set which can adjust relative gloss differences among various colors while maintaining pinning characteristics.SOLUTION: To provide an ink set which includes inks of two or more colors comprising pigments, photopolymerizable compounds, photoinitiators, and gelling agents. At least one ink contains a pigment derivative having a hydrophilic group. In all inks, 100% solid monochromatic images, formed under condition 1 where 60 degree glossiness can have arbitrary values, satisfy "Gamax-Gamin≤30 (1)." In all inks, 100% solid monochromatic images, formed under condition 2 where 60 degree glossiness becomes higher by 10 than the 60 degree glossiness measured under the condition (1), satisfy "Gbmax-Gbmin≤30 (2)." Gamax and Gbmax represent glossiness of 100% solid monochromatic images having the highest glossiness, and Gamin and Gbmin represent glossiness of 100% solid monochromatic images having the lowest glossiness. |
