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US 12,735,591 B2Granted
Ink composition for ink jet printing
AssigneeSeiko Epson Corporation
InventorsHidehiko Komatsu, Yasuhiro Oki, Shintaro Hama
Life of this patent
Estimating the term…
Abstract
Provided is an ink composition for ink jet printing containing a coloring material, a water-soluble organic solvent, and water. The coloring material contains a compound A represented by Formula (1) and a compound B represented by Formula (2) and a mass ratio (a/b) of a content a of the compound A to a content b of the compound B is 1.0 or more and 99 or less.
Claims6
An ink composition for ink jet printing, comprising:
- a coloring material;
- a water-soluble organic solvent;
- and
- water, wherein
- the coloring material contains a compound A represented by Formula (1) and a compound B represented by Formula (2) and
- a mass ratio (a/b) of a content a of the compound A to a content b of the compound B is 1.0 or more and 99 or less:
- wherein M1 each independently indicate Li, Na, K, or NH4 and M2 each independently indicate Li, Na, K, or NH4.
4 more elements
Dependencies are inferred from the claim text.