| 摘要 |
PROBLEM TO BE SOLVED: To provide an offset ink composition with excellent flowability and temporal stability of ink and emulsion stability during printing, and printed matter using the same.SOLUTION: An oxidatively-polymerized offset printing ink composition contains amorphous silica, a binder resin, a vegetable oil, a petroleum solvent, and a pigment. The amorphous silica has an average secondary particle size of 0.05-10 μm and a BET specific surface area of 20-400 m2/g, and is contained in an amount of 0.1-10 wt.% relative to the total weight of the ink. |
