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:
Apr. 05, 2016
Filed:
Dec. 18, 2013
Seiko Epson Corporation, Tokyo, JP;
Jun Ito, Shimosuwa-machi, JP;
Akihito Sao, Matsumoto, JP;
Miho Nakamura, Shiojiri, JP;
Keiji Iida, Chikuhoku-mura, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
An ink composition for ink jet recording, containing: a dye; organic solvents; and water, wherein a ratio (S/S) of a content (S) of the first organic solvent and a content (S) of the second organic solvent being 15.3 or more and 205 or less: and wherein the organic solvents including a first organic solvent satisfying a following property (A) and a second organic solvent not satisfying the property (A), and property (A): when a mixture with polyvinyl alcohol is produced, a cluster having a mass of 70% or more based on a total mass of the mixture is formed and when a load of 5.3 g/mmor more and 7.1 g/mmor less is applied to the cluster, a cluster having a mass of 90% or more based on a total mass of the cluster is formed.