| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a printing ink composition which shows excellent adhesion, blocking resistance, and boiling and retorting suitability when it has a solvent composition containing an aromatic hydrocarbon and shows good printability and adhesion even when it has a solvent composition free from an aromatic hydrocarbon. SOLUTION: Provided is a printing ink composition for lamination mainly consisting of a binder resin, a pigment, and an organic solvent, wherein the binder resin used is a polyurethane resin synthesized from a diisocyanate compound, a polymer diol compound satisfying conditions 1, a chain extender and a reaction terminator; condition 1: the polymer diol compound contains a polyester diol compound obtained by reacting a low-molecular diol component containing (I) 2,4-diethyl-1,5-pentanediol with a dicarboxylic acid and is contained in such and amount that the weight of component I used in the above reaction is at least 10 wt.% based on the total weight of the polymer diol compound.</p> |
