Stock material or miscellaneous articles – Ink jet stock for printing – Plural ink receptive layers
Reexamination Certificate
2006-03-21
2006-03-21
Shewareged, B. (Department: 1774)
Stock material or miscellaneous articles
Ink jet stock for printing
Plural ink receptive layers
C428S032300, C428S032350, C428S032370
Reexamination Certificate
active
07014894
ABSTRACT:
There is disclosed an ink jet recording sheet which comprises a substrate and an ink accepting layer composed of at least two layers on the substrate, characterized in that the ink accepting layer comprises at least one cracked layer having cracks in lower layers other than a surface layer (the layer farthest from the substrate) and a contact layer in contact with the cracked layer, wherein part of the contact layer cuts into the cracked layer, and the cracked layer contains a hydrophobic resin (e.g. styrene-acrylics copolymer resin) as a binder, or wherein the contact layer is formed by coating with a coating solution having viscosity of at most 3000 mPa.s and a proportion of solid content in the range of 10 to 30% by weight. The above ink accepting layer is excellent in water resistance and strength of adhesion among the interlayers, whereby the ink jet recording sheet as a whole becomes excellent in scratch-abrasion resistance under wet conditions as well as image density.
REFERENCES:
patent: 6465086 (2002-10-01), Kitamura et al.
patent: 6506479 (2003-01-01), Horiuchi
patent: 2005/0013948 (2005-01-01), Yamamoto
patent: 11-147361 (1999-06-01), None
Nisshinbo Industries Inc.
Shewareged B.
Smith Patent Office
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