To reduce an odor of an ink composition containing organic solvent.SOLUTION: The present invention provides an ink solvent composition containing a glycol ether-based first solvent (diethylene glycol ethyl methyl ether: MEDG), and an alcoholic second solvent (3-methoxy-3-methyl-1-butanol: MMB), with a ratio of the first solvent, the second solvent and a third solvent being 85: 10: 5-55: 20: 25.SELECTED DRAWING: None
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