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. 10, 2009
Filed:
Mar. 17, 2006
Shuzo Kinoshita, Tokyo, JP;
Yukio Tokunaga, Tokyo, JP;
Masako Horai, Nagano-ken, JP;
Hiroyuki Onishi, Nagano-ken, JP;
Masaya Shibatani, Nagano-ken, JP;
Shuzo Kinoshita, Tokyo, JP;
Yukio Tokunaga, Tokyo, JP;
Masako Horai, Nagano-ken, JP;
Hiroyuki Onishi, Nagano-ken, JP;
Masaya Shibatani, Nagano-ken, JP;
Eiko Epson Corporation, Tokyo, JP;
Abstract
An ink jet recording material of the invention includes a polyolefin resin-covered paper substrate, an ink absorption layer and a layer principally including colloidal silica in this order at one face of the substrate, and a backcoat layer at an opposite face of the substrate. An MD direction Taber stiffness of the substrate is at least 3 mN·m. The ink absorption layer principally includes fumed silica, and the backcoat layer is principally polyurethane resin. The ink absorption layer includes a thioether-based compound, and a polyolefin resin layer at a side of the substrate at which the ink absorption layer is to be provided includes an fluorescent brightening agent and a white pigment. A solid content coating amount of the colloidal silica is 0.05 to 0.3 g/m, and a solid content coating amount of the polyurethane resin is 0.8 to 1.5 g/m. A 20° glossiness of a blank portion of a face of the recording material that features the ink absorption layer is 40 to 60%.