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Ink jet recording paper
| Details |
Inventors: Horiuchi, Hiroyuki;
Assignee: Nisshinbo Industries, Inc. (Tokyo, JP)
Primary Examiner: Hess; Bruce H.
Assistant Examiner: Grendzynski; Michael E.
Attorney, Agent or Firm: Duane Morris LLP
The present invention is to provide an ink jet recording paper which is free from blurring, exhibits a highly developed color and has such a strength as to prevent a laminate film and an ink-receiving layer from being peeled by the wind or rain when the paper is posted outdoors after the appropriate film is laminated. The ink jet recording paper is provided with an ink-receiving layer, containing at least a resin and a pigment, on a substrate, wherein major components forming an anchor coating layer of the receiving layer are a styrene/acryl copolymer resin having a glass transition point of 0.degree. C. or more and 20.degree. C. or less and calcium carbonate. |
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DETAILED DESCRIPTION What is claimed is: 1.
An ink jet recording paper comprising: a substrate; an anchor coating layer adjacent said substrate, said anchor coating layer comprising a styrene/acryl copolymer resin having a glass transition point of 0.
degree.
or more and 20.
degree.
or less; and aragonite type calcium carbonate; an ink receiving layer adjacent said anchor coating layer comprising: a resin; and a pigment, wherein the ratio F/R of the solid weight (F) of the calcium carbonate to the solid weight (R) of the styrene/acryl copolymer resin in the anchor coating layer is 0.
1 to 0.
5.
Description:
BACKGROUND OF THE INVENTION 1.
Field of the Invention The present invention relates to ink jet recording paper which is advantageously used when fine liquid droplets, e.
g.
, aqueous ink are jetted from a nozzle to print a monochrome or full-color image nobly thereby making a poster or a signboard.
2.
Description of the Related Art Conventionally, current recording systems include, for example, a heat melting type thermal transfer system, sublimation type thermal transfer system, electrophotographic system and ink jet system.
In recent years, an ink jet recording system have been dominantly used in view of calm sound during recording, high speediness, suitability to the recording of a large-sized image and running costs.
While, there have been increased needs of making full-color and large-sized posters, signboards or the like in small lots and delivering in a short time and hence an ink jet printer using aqueous ink has attracted remarkable attention.
In the aforementioned situation, it is demanded of large-sized ink jet recording paper to be used outdoors that when an appropriate film is laminated on an ink-receiving layer and the paper is posted outdoors after a printing is made on the ink-receiving layer, the laminated film and the ink-receiving layer are not peeled when the paper is fluttered in the wind or submersed under rain water.
However, when hydrophilic components are contained in the ink-receiving layer in a large amount even if the ink-receiving layer is coated with a laminate film, water such as rain water enters toward the center of the paper through the ink-receiving layer from the non-laminated end surface of the recording paper, rendering the peeling easy
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