Inkjet ink
AssigneeKYOCERA Document Solutions Inc.
InventorNORIAKI OZAWA
Life of this patent
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Abstract
An inkjet ink includes: a pigment; a cyclohexylmethacrylate/methacrylic acid copolymer having a weight average molecular weight of 10,000 or more and 30,000 or less and an acid value of 160 mg KOH/g or more and 200 mg KOH/g or less; a surfactant represented by the following general formula (1); and water. In the general formula (1), x, y, and z represent integers determined to satisfy conditions that the surfactant has a number average molecular weight of 2,000 or more and 2,750 or less and a ratio of a number average molecular weight of only a propyleneoxide chain in the surfactant to the number average molecular weight of the surfactant is 0.82 or more and 0.91 or less.
Claims1
An inkjet ink, comprising:
- a pigment;
- a cyclohexylmethacrylate/methacrylic acid copolymer having a weight average molecular weight of 10,000 or more and 30,000 or less and an acid value of 160 mg KOH/g or more and 200 mg KOH/g or less;
- a surfactant represented by the following general formula (1);
- and
- water,
- wherein, in the general formula (1), x, y, and z represent integers determined to satisfy conditions that the surfactant has a number average molecular weight of 2,000 or more and 2,750 or less and a ratio of a number average molecular weight of only a propyleneoxide chain in the surfactant to the number average molecular weight of the surfactant is 0.82 or more and 0.91 or less.
Dependencies are inferred from the claim text.