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:
Nov. 20, 2007
Filed:
Sep. 07, 2005
Kenji Shinjo, Yokohama, JP;
Koromo Shirota, Kawasaki, JP;
Yutaka Kurabayashi, Tokyo, JP;
Minako Kawabe, Kawasaki, JP;
Kenji Shinjo, Yokohama, JP;
Koromo Shirota, Kawasaki, JP;
Yutaka Kurabayashi, Tokyo, JP;
Minako Kawabe, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Ink jet ink which sufficiently suppresses curling phenomenon of printed matters and satisfies ejection stability, the ink comprising at least water, a colorant, a water-soluble organic compoundand a water-soluble organic compound, wherein the content X(%) of the water-soluble organic compoundis 10 mass % or more based on the total amount of the ink jet ink and the content X(%) of the water-soluble organic compoundand the content Y(%) of the water-soluble organic compoundbased on the total amount of the ink jet ink satisfy the relation of the following formula (I) and formula (II):0<≦0.9,   (I)≧15 mass %,   (II)and wherein the water-soluble organic compoundis a water-retentive, water-soluble organic compound having a difference between the water retention ability in an environment of a temperature of 23° C. and a humidity of 45% and the water retention ability in an environment of a temperature of 30° C. and a humidity of 80% of 36% or less, and the water-soluble organic compoundis a water-soluble organic compound other than the colorant and the water-soluble organic compound