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. 24, 2015
Filed:
May. 21, 2008
Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
Fumihiko Mukae, Tokyo, JP;
Masashi Ogasawara, Machida, JP;
Souichi Nagai, Kawasaki, JP;
Shuichi Okazaki, Fujisawa, JP;
Shin-ichi Hakamada, Kawasaki, JP;
Yoshio Nakajima, Yokohama, JP;
Fumihiko Mukae, Tokyo, JP;
Masashi Ogasawara, Machida, JP;
Souichi Nagai, Kawasaki, JP;
Shuichi Okazaki, Fujisawa, JP;
Shin-ichi Hakamada, Kawasaki, JP;
Yoshio Nakajima, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides provide an ink jet ink exhibiting such an excellent ejection property that when an ink containing a polymer capable of improving the scratch resistance of a recorded article is used, the deviation of the ink-droplet impact point on a recording medium is prevented. The ink jet ink contains a polymer and a surfactant, wherein the acid value of the polymer is from 100 mg KOH/g or more to 220 mg KOH/g or less, the weight-average molecular weight of the polymer is from 3,000 or more to 10,000 or less, and the surfactant has a structure represented by the following formula () wherein n is a numerical value of from 3 or more to 27 or less, and m is a numerical value of from 16 or more to 31 or less.