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:
Dec. 24, 2019
Filed:
Jul. 19, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Masanobu Ootsuka, Tokyo, JP;
Masahiro Terada, Hadano, JP;
Hidetaka Kawamura, Yokohama, JP;
Akihiro Taya, Yokohama, JP;
Yohei Masada, Tokyo, JP;
Takaharu Aotani, Tokyo, JP;
Shoji Koike, Yokohama, JP;
Yutaka Yoshimasa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An aqueous ink according to the present invention is an aqueous ink for ink jet, containing a solvent A and a resin particle. The solvent A is alcohol of which aqueous solubility at 20° C. is 5% by mass or less, a vapor pressure at 20° C. is 0.5 mmHg or less and a surface tension at 20° C. is 30 mN/m or more. A content (% by mass) of the solvent A is 0.7 times or more to 7.0 times or less in terms of a ratio based on aqueous solubility (% by mass) of the solvent A at 20° C. The amount of a surface anionic functional group of the resin particle is 0.55 mmol/g or more to 2.00 mmol/g or less.