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:
Jul. 19, 2005
Filed:
Jun. 23, 2004
Masanobu Yokoyama, Yokohama, JP;
Hisao Takeuchi, Yokohama, JP;
Hideaki Tanaka, Yokohama, JP;
Kazuhiro Maruyama, Kawasaki, JP;
Katsuhito Kanazawa, Kawasaki, JP;
Masanobu Yokoyama, Yokohama, JP;
Hisao Takeuchi, Yokohama, JP;
Hideaki Tanaka, Yokohama, JP;
Kazuhiro Maruyama, Kawasaki, JP;
Katsuhito Kanazawa, Kawasaki, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
An ink-jet recording liquid using a dye and a pigment, which is excellent in dispersibility and has good printing performance and storage stability, and a process for producing the same are provided. There are provided an ink-jet recording liquid containing a pigment, a dye and a surfactant which are incorporated in an aqueous medium, characterized in that (1) the pigment and the dye at least partly comprise a pigment and a dye reversibly adsorbed thereon without involving a chemical reaction, (2) the dye reversibly adsorbed on the pigment without involving a chemical reaction contains a dye having a dye adsorption shown by the following formula (1) of 0.02 g/g or more, and (3) as the surfactant, a nonionic surfactant and an anionic surfactant coexist; and a process for producing the same.