Stock material or miscellaneous articles – Ink jet stock for printing – Physical property of ink receptive layer specified
Reexamination Certificate
2006-03-17
2009-11-10
Shewareged, Betelhem (Department: 1794)
Stock material or miscellaneous articles
Ink jet stock for printing
Physical property of ink receptive layer specified
C428S032180, C428S032210, C428S032220, C428S032340
Reexamination Certificate
active
07615266
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/m2, and a solid content coating amount of the polyurethane resin is 0.8 to 1.5 g/m2. A 20° glossiness of a blank portion of a face of the recording material that features the ink absorption layer is 40 to 60%.
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Horai Masako
Kinoshita Shuzo
Onishi Hiroyuki
Shibatani Masaya
Tokunaga Yukio
Eiko Epson Corporation
Ladas and Parry LLP
Shewareged Betelhem
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