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:
Mar. 31, 2015
Filed:
May. 09, 2014
Seiko Epson Corporation, Toyko, JP;
Makoto Nagase, Shiojiri, JP;
Akihito Sao, Matsumoto, JP;
Kenichiro Kubota, Matsumoto, JP;
Kenichi Numakura, Azumino, JP;
Jun Ito, Shimosuwa-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The ink composition for ink jet recording according to the invention includes a coloring material, a cyclic ester, a first organic solvent having a flash point of 70° C. or less and represented by Formula (I):R—O—(R—O)—R  (I)(wherein, Rrepresents an alkyl group having 1 to 4 carbon atoms; Rrepresents an ethylene group or a propylene group; and Rrepresents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms), and a second organic solvent having a flash point of 90° C. or more. The cyclic ester has a content 'a' (% by mass) of 6% by mass or more and 30% by mass or less. The content 'a' (% by mass) of the cyclic ester, the content “b” (% by mass) of the first organic solvent, and the content “c” (% by mass) of the second organic solvent satisfy a relationship represented by Expressions (1) and (2):  (1)<()/2  (2).