| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink composition having excellent scratch resistance, suppressing short-term or long-term clogging, and showing improved ejection stability, and a recording device.SOLUTION: In one embodiment, the ink composition comprises a coloring material, water and polymer particles. The polymer particle has a core-shell structure having a core polymer and a shell polymer; the core polymer has a glass transition temperature of lower than 60°C, while the shell polymer has a glass transition temperature of 60°C or higher. The polymer particle has an acid value of 50 mgKOH/g or more. The shell polymer contains an aromatic monomer as a structural unit. |
