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. 15, 2016
Filed:
Dec. 24, 2014
Seiko Epson Corporation, Tokyo, JP;
Soichi Yamazaki, Shiojiri, JP;
Yoshitaka Miyajima, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
An ink composition for ink jet recording according to the invention contains water, a coloring material, and three or more kinds of acetylene glycol-based surfactant selected from acetylene glycol represented by the following general formula (1) and an ethylene oxide adduct of acetylene glycol represented by the following general formula (2), and a total content of the acetylene glycol-based surfactant is 0.1% by mass to 3% by mass with respect to the total mass of the ink composition. (In the general formula (1), each of Rand Rindependently represents an alkyl group having 1 to 5 carbon atoms.) (In the general formula (2), each of Rand Rindependently represents an alkyl group having 1 to 5 carbon atoms, each of m and n independently represents an integer of 0.5 to 25, and m+n is 1 to 40).