| abstract |
Provided is an ink composition which is excellent in initial filling property, continuous printing stability, and printing stability (intermittent) in addition to ozone resistance. A phthalocyanine dye (C-1) having a predetermined structure; I. Dye (C-2) containing at least one of Direct Blue 86 and 199, an alkylene oxide adduct of acetylene glycol having 12 or more carbon atoms in the main chain, and acetylene glycol having 10 or more carbon atoms in the main chain And a polyoxyalkylene alkyl ether, the content ratio A of the dye (C-1) and the dye (C-2) (the dye (C-1): the dye (C-2) ) Is 7: 3 to 9.5: 0.5, and the content of the dye (C-1) is 2.0 to 5.0% by mass. [Selection figure] None |