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US 9,109,133 B2Granted
Ink jet ink and recorded object
AssigneeSeiko Epson Corporation
InventorsSoichi Yamazaki, Hideki Okada, Hiroaki Kumeta, Daisuke Ishihara
Life of this patent
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Abstract
The ink jet ink includes pigment, first resin which has a glass-transition temperature of less than 20° C. and a weight-average molecular weight of not more than 10000, second resin which has a glass-transition temperature of not less than 23° C., and specific polyoxyalkylene glycol monoalkyl ether.
Claims10
Ink jet ink comprising:
- a pigment;
- a first resin (A) with a glass-transition temperature of less than 20° C. and a weight-average molecular weight of not more than 10000;
- a second resin (B) with a glass-transition temperature of not less than 23° C.;
- and
- a polyoxyalkylene glycol monoalkyl ether (C), the polyoxyalkylene glycol monoalkyl ether (C) being either a compound (C1) or a compound (C2)
- wherein compound (C1) has the following formula (1):
- wherein in the formula (1), R represents an x-valent alkoxy group containing four to thirty carbons, PO represents a propyleneoxy group, EO represents an ethyleneoxy group, m represents an integer from zero to ten, n represents an integer from ten to thirty, and X represents an integer from one to three, and
- wherein compound (C2) has the following formula (2):
- wherein in the formula (2), R represents an x-valent alkoxy group containing four to thirty carbons, EO represents an ethyleneoxy group, and n represents an integer from four to twenty.
6 more elements
Dependencies are inferred from the claim text.