The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2018
Filed:
Jan. 11, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet aqueous ink including a pigment; a resin dispersant; a fluorinated surfactant; and a water-soluble organic solvent. The pigment comprises quinacridone pigments comprising C.I. Pigment Violet 19, Red 122, 202 or 209; solid solution pigments of two or more thereof; diketopyrrolopyrrole pigments comprising C.I. Pigment Red 254, 255 or 272; or C.I. Pigment Violet 23. The dispersant has an acid value of 150-200 mg KOH/g. The surfactant comprise a perfluoroalkyl ethylene oxide adduct having a C6 or lower perfluoroalkyl group. The solvent contains a water-soluble organic solvent A and B having a dielectric constant of 40.0 or more and 3.0-20.0, respectively. Content p of the pigment is 5.00 mass % or less. Content a of solvent A to content p is 2.0 or more. Content b of solvent B to content a is 0.6 or less. Content b to content f of the surfactant is 10.0 or more.