| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink composition having low aggressiveness to a seal member and to provide a liquid-jetting apparatus that jets the ink composition.SOLUTION: An ink is a jetting ink in a printer 11 and comes into contact with a sealing member 48A of an ink-feeding unit 30 in the ink-feeding unit 30 to a jetting head of the printer 11. The ink contains a plurality of liquid compounding agents that becomes in a liquid state at normal temperature. When the sealing member 48A has gone through a first immersion step of immersing the sealing member in each of the plurality of liquid compounding agents continuously for 48 hours, a first volume-change modulus is 50 to 100% inclusive, wherein the first volume-change modulus is the ratio of a volume of the sealing member 48A after going through the first immersion step to a volume of the sealing member 48A before going through the first immersion step. |
