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:
Oct. 15, 2019
Filed:
Jul. 01, 2015
Kao Corporation, Tokyo, JP;
Yuuta Matsumoto, Wakayama, JP;
KAO CORPORATION, Tokyo, JP;
Abstract
Colored fine-particle dispersion for ink-jet printing. The colored fine-particle dispersion is produced by subjecting dispersion including pigment, polymerizable monomer, polymerizable surfactant, and water to emulsion polymerization, including dispersing a mixed solution including the pigment, the polymerizable surfactant, the water, and an organic solvent to prepare a dispersion 1; removing the organic solvent from the dispersion 1 to prepare a dispersion 2; and subjecting the dispersion 2 and the polymerizable monomer to emulsion polymerization to obtain the colored fine-particle dispersion. The process for producing the ink includes mixing the obtained colored fine-particle dispersion and an organic solvent B. The colored fine-particle dispersion includes colored fine-particles with average particle size of 10 to 300 nm. The colored fine-particle dispersion may be used in a water-based ink for ink-jet printing, and provides high-gloss printed characters or images excellent in rub fastness when printed on a low-water absorbing recording medium.