Provided are a polyurethane polyurea resin composition that has high storage stability without a decrease in viscosity or turbidity over time and a printing ink that has high storage stability without a decrease in viscosity or coloration over time. The resin composition contains, as essential components, a polyurethane polyurea resin (A), a polyhydroxymonocarboxylic acid (B) having an acid value of 340 to 500 mg KOH/g and a hydroxyl value of 680 to 1,300 mg KOH/g, and at least one solvent selected from the group consisting of an ester solvent (C1) and an alcohol solvent (C2).
                            本发明提供了一种聚
氨酯聚
脲树脂组合物,该组合物具有较高的储存稳定性,且不会随着时间的推移而降低粘度或浑浊度;还提供了一种印刷油墨,该油墨具有较高的储存稳定性,且不会随着时间的推移而降低粘度或着色。该
树脂组合物的主要成分包括聚
氨酯聚
脲树脂(A)、酸值为 340 至 500 毫克 KOH/g 和羟值为 680 至 1 300 毫克 KOH/g 的聚羟基单
羧酸(B),以及至少一种选自酯溶剂(C1)和醇溶剂(C2)的溶剂。