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:
Aug. 08, 2017
Filed:
Feb. 25, 2014
Seiko Epson Corporation, Tokyo, JP;
Masahiro Yatake, Nagano-ken, JP;
Toshiyuki Miyabayashi, Nagano-ken, JP;
Hiroko Hayashi, Nagano-ken, JP;
Seiko Epson Corporation, , JP;
Abstract
An ink jet recording ink has excellent dispersion stability and ejection stability and is capable of providing images free from bleeding. Such an ink exhibits excellent color development and rubbing resistance. The ink jet recording ink comprises a pigment dispersed by a polymer; water; at least one compound selected from the group consisting of an acetylene glycol surfactant and an acetylene alcohol surfactant; and 1,2-hexanediol. The pigment dispersed by the polymer is produced by a phase conversion emulsification, an emulsion polymerization, an acid deposition or a forced emulsification. The ink has a surface tension between 25 mN/m and 45 mN/m.