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. 15, 2017
Filed:
Jun. 22, 2016
Fujifilm Corporation, Minato-ku, Tokyo, JP;
Ryuji Shinohara, Kanagawa, JP;
Yuko Saito, Kanagawa, JP;
FUJIFILM CORPORATION, Tokyo, JP;
Abstract
The present invention provides an ink jet recording ink including a dye which has a weight average molecular weight of 850 or less and is represented by Formula (1) below, a water-soluble organic solvent which has an SP value of 9.4 or more and less than 9.75 and is represented by Formula (2) or (3) below, and water, in which the content of a surfactant is less than 0.1% by mass. R, R: H, a halogen atom, OH, COOH, C1-C6 alkyl group, C1-C6 alkoxy group, NO, an azophenyl group, -L1-Ra and the like, L: O, CH, CH, N═N, SOor a combination thereof, Ra: a phenyl group, a naphthyl group, or the like, R: H, an azophenyl group, an azonaphthalene group, -L-Rb or the like, L: C(═O), CH, N═N, NH, SOor a combination thereof, Rb: a phenyl group, a naphthyl group, a pyrimidyl group, or the like; M: H, Na, NH, an alkylammonium ion or the like, R: C2-C6 unsubstituted alkyl group, and n is 1 to 3.