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:
Jan. 17, 2012
Filed:
Mar. 17, 2008
Tohru Ohshima, Atsugi, JP;
Kiyofumi Nagai, Machida, JP;
Naoya Morohoshi, Numazu, JP;
Michihiko Namba, Yokohama, JP;
Tohru Ohshima, Atsugi, JP;
Kiyofumi Nagai, Machida, JP;
Naoya Morohoshi, Numazu, JP;
Michihiko Namba, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An ink-jet recording method including: printing on a medium by ejecting thereon ink having a pH value of 8 or more and containing at least a particulate colorant, emulsion resin and surfactant, the medium prepared by providing at least a coat layer containing a pigment on at least one surface of a substrate containing cellulose pulp as a main component, wherein printing is performed at a deposited ink amount of 15 g/mor less, and wherein the medium has a pH value of 8 or more at a paper surface, and the amount of pure water transferring onto a surface of the medium having the coat layer after a contact time of 100 ms measured with a dynamic scanning absorptometer is 1 mL/mor less and the amount of pure water transferring onto the surface of the medium after a contact time of 400 ms is 35 mL/mor less.