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US 9,004,664 B2Granted
Ink jet recording aqueous pigment ink
AssigneeSeiko Epson Corporation
InventorsSoichi Yamazaki, Rie Miyazaki, Miharu Kanaya, Hiroshi Kato, Ayako Nishiki, Hideki Okada
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Abstract
An ink jet recording aqueous pigment ink contains a self-dispersing pigment, a quaternary amino acid, a non-polymeric, nonionic material having a melting point of 40° C. or more, and at least one of trialkylamine and trialkanolamine. The content of the non-polymeric, nonionic material is 3% to 15% by mass relative to the total mass of the ink jet recording aqueous pigment ink.
Claims16
An ink jet recording aqueous pigment ink comprising:
- a self-dispersing pigment;
- a quaternary amino acid;
- and
- a non-polymeric, nonionic material having a melting point of 40° C. or more;
- and at least one of a trialkylamine or a trialkanolamine,
- wherein the non-polymric, nonionic material having a melting point of 40° C. or more is at least one selected from the group consisting of glycerin fatty acid esters, and trimethylopropane, and is present in an amount of 3% to 15% by mass relative to the total mass of the ink jet recording aqueous pigment ink.
3 more elements
Dependencies are inferred from the claim text.