| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink composition which is excellent in terms of initial filling and stability in continuous printing even when the ink composition has not substantially been degassed (for example, the dissolved nitrogen content is 5 ppm or higher) or the ink composition has not been degassed at all (for example, the dissolved nitrogen content is 7 ppm or higher).SOLUTION: An ink composition contains an alkylene oxide adduct of an acetylene glycol whose main chain has 12 or more carbon atoms, an acetylene glycol whose main chain has 10 or more carbon atoms, and a polyoxyalkylene alkyl ether. |
