| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate ink composition for soft packaging, which has preferable storage stability, and which is excellent in adhesive property (laminate intensity), oil resistance, boil and retort suitability even when it is subjected to extrusion lamination and dry lamination.SOLUTION: A laminate ink composition comprises a pigment, a polyurethane resin and an organic solvent. The polyurethane resin comprises: (A) a polyurethane resin having a number average molecular weight of 20000-100000; and (B) a polyurethane resin having a number average molecular weight of 1000-20000 and having on a molecular terminal, at least one hydrazine residue. The polyurethane resin (B) is included by a ratio of 0.1-50 pts.mass to 100 pts.mass of the polyurethane resin (A). The organic solvent is an organic solvent formed of a compound which has neither a keto group nor a group of a compatible isomer of the keto group.SELECTED DRAWING: None |
