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:
Aug. 17, 2004
Filed:
Apr. 19, 2002
Kazuyuki Koike, Shizuoka-ken, JP;
Takashi Kobayashi, Shizuoka-ken, JP;
Katsuyoshi Suzuki, Shizuoka-ken, JP;
Ryoichi Nakano, Shizuoka-ken, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An inkjet recording sheet comprising a support and, on a surface of the support, a colorant-receiving layer formed by applying a first coating liquid, adding a second coating liquid, after application of the first coating liquid and before the same shows a decreasing rate of drying, and thereafter hardening and drying the coat layer to form a porous structure. The first coating liquid has a pH value of 5 or lower, and is obtained by adding a solution which includes polyvinyl alcohol, a nonionic surfactant and/or amphoteric surfactant and a high boiling point organic solvent, to a dispersion including a cationic resin and vapor-phase-process silica having a specific surface area of at least 200 m /g as measured by the BET method. The second coating liquid has a pH value of 8.5 or higher and includes a cross-linking agent capable of cross-linking the polyvinyl alcohol, an organic mordant and a nonionic surfactant.