| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink composition for penetration dryness type offset printing capable of maintaining good printability even when continuing long time printing in offset printing.SOLUTION: An ink composition for penetration dryness type offset printing is manufactured by a manufacturing method including a mixing step of preparing a pigment dispersion composition containing a pigment, resin and an oil component and a gelatinization step of setting a temperature of the pigment dispersion composition at 70 to 200°C with status that an alkoxy compound of bi- or higher valent metal is added.SELECTED DRAWING: None |
