| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a printing ink which inhibits the shrinkage of the rubber roll and the blanket of a printing machine from the ink side as much as possible while maintaining a balance between the press stability and dryness in the conventional printing machine. SOLUTION: In the printing ink comprising a pigment, a varnish resin, and a solvent, the solvent contains 5-50 wt.%, based on the entire ink, fatty act esters to be obtained by transesterification of fats and oils with a monohydric or dihydric alcohol, 10-60 wt.%, based on the entire ink, vegetable oil, and 10-40 wt.%, based on the entire ink, nonaromatic based petroleum solvent.</p> |
