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:
Jun. 19, 2007
Filed:
Dec. 18, 2003
Tomoya Yamamoto, Mitsukaido, JP;
Yukiko Tachibana, Misukaido, JP;
Hitoshi Inoue, Mitsukaido, JP;
Ryoji Yashiro, Mitsukaido, JP;
Takayuki Ookawa, Mitsukaido, JP;
Junko Morioka, Mitsukaido, JP;
Tomoya Yamamoto, Mitsukaido, JP;
Yukiko Tachibana, Misukaido, JP;
Hitoshi Inoue, Mitsukaido, JP;
Ryoji Yashiro, Mitsukaido, JP;
Takayuki Ookawa, Mitsukaido, JP;
Junko Morioka, Mitsukaido, JP;
Canon Finetech Inc., Mitsukaido-shi, JP;
Abstract
An inkjet recording ink is composed of an encapsulated water-insoluble colorant encapsulated with a high-molecular dispersant, a water-soluble organic solvent, and water. The water-insoluble colorant is at least one colorant selected from the group consisting of C.I. Solvent Yellow 21, 42, 79, 82, 83:1, 88 and 151, at least one colorant selected from the group consisting of C.I. Solvent Red 8, 49, 83:1, 91, 127 and 218, at least one colorant selected from the group consisting of C.I. Solvent Black 3, 27, 29 and 45, or at least one colorant selected from the group consisting of C.I. Solvent Blue 25, 38, 44, 67 and 70. The high-molecular dispersant is a block copolymer comprising at least one hydrophobic block and at least one hydrophilic block, which have been obtained by polymerizing vinyl ethers as monomers, respectively. The inkjet recording ink can stably record images of high fastness and excellent quality over a long period even under severe environmental conditions.