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US 11,447,649 B2Granted
Aqueous ink jet composition
AssigneeSeiko Epson Corporation
InventorsYasunari Ikeda, Hiroko Hayashi, Kenji Kitada, Hirofumi Hokari, Hisashi Okamura, Kenta Kikuchi, Shinichi Naito
Life of this patent
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Abstract
An aqueous ink jet composition includes a first component which is at least one selected from the group consisting of C.I. Solvent Yellow 160: 1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a second component which is a dispersant having at least one chemical structure of a sulfo group and a salt thereof; and a third component which has a coumarin skeleton and at least one chemical structure of a sulfo group and a salt thereof.
Claims17
An aqueous ink jet composition comprising:
- a first component which is at least one selected from the group consisting of C.I. Solvent Yellow 160:
- 1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184;
- a second component which is a dispersant having at least one chemical structure of a sulfo group and a salt thereof;
- and
- a third component which has a coumarin skeleton and at least one chemical structure of a sulfo group and a salt thereof,
- wherein among the dye forming the specific yellow dye group, C.I. Solvent Yellow 160:
- 1 is a component having a highest content,
- the content of C.I. Solvent Yellow 160:
- 1 with respect to the entire specific yellow dye group is 60.0 to 99.0 percent by mass, and
- the content of C.I. Solvent Yellow 160:
- 1 in the aqueous ink jet composition is 0.5 to 25.0 percent by mass.
8 more elements
An aqueous ink jet composition comprising:
- at least two types of dye components selected from a specific yellow dye group consisting of C.I. Solvent Yellow 160:
- 1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184;
- and
- a sulfonic acid-based dispersant which is a dispersant having at least one chemical structure of a sulfo group and a salt thereof,
- wherein among the dye components forming the specific yellow dye group, C.I. Solvent Yellow 160:
- 1 is a component having a highest content,
- the content of C.I. Solvent Yellow 160:
- 1 with respect to the entire specific yellow dye group is 60.0 to 99.0 percent by mass, and
- the content of C.I. Solvent Yellow 150:
- 1 in the aqueous ink jet composition is 0.5 to 25.0 percent by mass.
7 more elements
Dependencies are inferred from the claim text.