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US 12,760,194 B2Granted
Water-based ink jet ink composition
AssigneeSeiko Epson Corporation
InventorsTomohito Nakano, Tomoki Maruyama, Tetsuro Kozaki, Manabu Taniguchi
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Abstract
A water-based ink jet ink composition contains Pigment Yellow 150, a dispersing resin, and N-hydroxyethylpyrrolidone.
Claims5
A water-based ink jet ink composition comprising:
- Pigment Yellow 150;
- a dispersing resin having a weight-average molecular weight of 150000 or more and 500000 or less;
- and
- N-hydroxyethylpyrrolidone,
- wherein a ratio by mass of an N-hydroxyethylpyrrolidone content to a dispersing resin content is 0.05 or greater and 1.2 or less.
2 more elements
Dependencies are inferred from the claim text.