| 摘要 |
PROBLEM TO BE SOLVED: To provide offset ink having excellent dispersibility, fluidity and stability with time and a print space having excellent efficiency improvement during production, reduction in cost, clarity, gloss and inking properties by improving the performances. SOLUTION: In the offset ink comprising a pigment, a binder resin and a vegetable oil, ink fluidity and clarity of print space are improved by including a rosin metal salt obtained by reacting rosin with a metal. The content of the rosin metal salt is 0.5-10 wt.% based on the total of the ink. The binder resin is a rosin-modified phenol resin or a rosin-modified alkyd resin. The printed material is obtained by printing offset ink on a substrate. COPYRIGHT: (C)2010,JPO&INPIT |
