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US 9,790,387 B2Granted
Non-aqueous ink jet ink composition
AssigneeSeiko Epson Corporation
InventorsHiroaki Kumeta, Kana Mitsuzawa
Life of this patent
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Abstract
There is provided a non-aqueous ink jet ink composition, including a pigment, a non-aqueous solvent, and a surfactant, in which the ink composition contains an acetylene glycol-based surfactant having a HLB value of 1.0 to 6.0 as the surfactant.
Claims7
A non-aqueous ink jet ink composition, comprising:
- a pigment;
- a non-aqueous solvent;
- and
- a surfactant,
- wherein the ink composition contains an acetylene glycol-based surfactant having a HLB value of 1.0 to 6.0 as the surfactant,
- the ink composition does not contain a non-ionic surfactant having a HLB value greater than 6.0,
- the non-aqueous solvent contains a non-polar organic solvent having a 50% distillation point of 280° C. or lower and a polar organic solvent having a 50% distillation point of 300° C. or higher,
- the total content of the non-polar organic solvent and the polar organic solvent in the non-aqueous solvent is 60.0 mass % or more, and
- a content of the polar organic solvent is 10.0 mass % or more.
6 more elements
Dependencies are inferred from the claim text.