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US 9,284,464 B2Granted
Inkjet ink, ink cartridge, and inkjet recording device
AssigneeRicoh Company, Ltd.
InventorsHidefumi Nagashima, Naohiro Toda, Tomohiro Nakagawa, Juichi Furukawa, Ichiroh Fujii
Life of this patent
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Abstract
An inkjet ink including: water; a water-soluble organic solvent; a pigment; polycarbonate modified urethane resin particles; an ultraviolet absorber; and a light stabilizer.
Claims12
An inkjet ink, comprising:
- water;
- a water-soluble organic solvent;
- a pigment;
- polycarbonate-modified urethane resin particles;
- an ultraviolet absorber;
- and
- a light stabilizer,
- wherein each of the ultraviolet absorber and the light stabilizer is contained in water-insoluble acrylic polymer particles.
5 more elements
An ink cartridge, comprising:
- an inkjet ink;
- and
- a container, in which the inkjet ink is housed,
- wherein the inkjet ink comprises:
- water;
- a water-soluble organic solvent;
- a pigment;
- polycarbonate-modified urethane resin particles;
- an ultraviolet absorber;
- and a light stabilizer, and
- wherein each of the ultraviolet absorber and the light stabilizer is contained in water-insoluble acrylic polymer particles.
8 more elements
An inkjet recording device, comprising:
- an ink jetting unit configured to apply a stimulus to an inkjet ink to allow the inkjet ink to jet, to thereby record an image on a recording medium;
- and
- a heating unit configured to heat the recording medium on which the image has been recorded,
- wherein the inkjet ink comprises:
- water;
- a water-soluble organic solvent;
- a pigment;
- polycarbonate-modified urethane resin particles;
- an ultraviolet absorber;
- and a light stabilizer,
- wherein each of the ultraviolet absorber and the light stabilizer is contained in water-insoluble acrylic polymer particles.
8 more elements
Dependencies are inferred from the claim text.