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. 17, 2015
Filed:
Aug. 31, 2011
Applicants:
Shinsuke Shimizu, Tokyo, JP;
Tadahiko Tabe, Tokyo, JP;
Yoshiki Akatani, Tokyo, JP;
Inventors:
Assignee:
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/02 (2014.01); B41J 2/01 (2006.01); C09D 11/328 (2014.01); C09B 29/01 (2006.01); C09B 29/20 (2006.01); C09B 47/06 (2006.01); C09D 11/40 (2014.01); B41M 5/00 (2006.01);
U.S. Cl.
CPC ...
C09D 11/328 (2013.01); B41M 5/0023 (2013.01); C09B 29/0007 (2013.01); C09B 29/0014 (2013.01); C09B 29/20 (2013.01); C09B 47/065 (2013.01); C09D 11/40 (2013.01);
Abstract
A dye ink set for ink jet recording, which has a wide color gamut, particularly for the hue range of magenta, blue, and cyan, and which has good ejection stability properties. The ink set includes ink compositions of two colors, a magenta ink composition and a cyan ink composition which contain a dye, water, and a water-soluble organic solvent, and the magenta ink composition contains a compound represented by formula (1) below or a salt thereof.