US 7,615,266 B2
Ink jet recording material
Shuzo Kinoshita, Tokyo (Japan); Yukio Tokunaga, Tokyo (Japan); Masako Horai, Nagano-ken (Japan); Hiroyuki Onishi, Nagano-ken (Japan); and Masaya Shibatani, Nagano-ken (Japan)
Assigned to Eiko Epson Corporation, Tokyo (Japan)
Filed on Mar. 17, 2006, as Appl. No. 11/384,047.
Claims priority of application No. 2005-081422 (JP), filed on Mar. 22, 2005.
Prior Publication US 2006/0216443 A1, Sep. 28, 2006
Int. Cl. B41M 5/40 (2006.01)
U.S. Cl. 428—32.33  [428/32.18; 428/32.21; 428/32.22; 428/32.34] 5 Claims
 
1. An ink jet recording material comprising:
a polyolefin resin-covered paper substrate, an MD direction Taber stiffness of which is at least 3 mN·m; an ink absorption layer principally including fumed silica and a layer principally including colloidal silica, in this order at one face of the substrate; and a backcoat layer principally of polyurethane resin at an opposite face of the substrate,
wherein the ink absorption layer includes a thioether-based compound, 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/m2, a solid content coating amount of the polyurethane resin is 0.8 to 1.5 g/m2, and a 20° glossiness of a blank portion of a face of the recording material that features the ink absorption layer is 40 to 60%.