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:
Jul. 13, 2010
Filed:
Nov. 09, 2005
Yui Tokuda, Yokohama, JP;
Tomonari Watanabe, Kawasaki, JP;
Mikio Sanada, Yokohama, JP;
Masashi Ogasawara, Tokyo, JP;
Yui Tokuda, Yokohama, JP;
Tomonari Watanabe, Kawasaki, JP;
Mikio Sanada, Yokohama, JP;
Masashi Ogasawara, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an ink set, which is an ink set (A) obtained by combining a plurality of aqueous inks (a) and used together with an aqueous ink (B) containing a water-insoluble coloring material, respective aqueous inks constituting the ink set (A) contain at least one water-soluble organic solvent serving as a poor solvent for the water-insoluble coloring material contained in the aqueous ink (B), and among the water-soluble organic solvents which are respectively contained in the aqueous ink (a) and serve as a poor solvent, at least one water-soluble organic solvent has a vapor pressure at 20° C. that is lower than the vapor pressure of water at 20° C. The ink set can form a full-color image in which occurrence of bleeding at boundaries between different adjacent color regions of the image has been suppressed.