| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a water-based inkjet ink having excellent resistance to the occurrence of density unevenness and resistance to the occurrence of bleeding while maintaining the good gloss and good jetting properties of the ink, and to provide an inkjet recording method. <P>SOLUTION: The water-based inkjet ink including 30-90 mass% of water, a first resin having an acid group, a solvent and a pigment further includes a second resin having an acid group and a pKa value ≥0.5 higher than the pKa value of the first resin, and ammonia as a counter base of the acid groups of the first and second resins, and is regulated so that at least one of the first and second resins may be the resin contained by being dissolved in the water-based inkjet ink. <P>COPYRIGHT: (C)2011,JPO&INPIT |
