| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inkjet ink which yields a printed recording material excellent in curling characteristics, enables formation of an image having a high optical density, is excellent in shelf stability over a long period of time, forms a high-gloss image when printed on a glossy paper and offers a high reproducibility. <P>SOLUTION: The inkjet ink contains at least water, water-soluble organic solvents and a pigment, wherein water accounts for 10 mass% or larger but smaller than 50 mass% of the entire ink. Among the water-soluble organic solvents, a water-soluble organic solvent having an SP value of 16.5 or larger but smaller than 24.6 accounts for ≥30 mass% of the entire ink and has an acidity of 0.1-0.0001% calculated in terms of acetic acid. <P>COPYRIGHT: (C)2007,JPO&INPIT |
