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US 4,946,372 AGranted
Composite paper
AssigneeUnion Camp Corporation
InventorEitan Avni
Life of this patent
Estimating the term…
Abstract
A composite paper is provided which is comprised of a paper substrate, a continuous thermoplastic film formed on at least one surface of the paper substrate, and a layer of an ink absorbent composite bonded to the outer surface of the thermoplastic film. The composite paper of this invention is especially useful as a printing substrate and in the manufacture of packages requiring printed surfaces.
Claims20
A composite paper, comprising:
- a paper substrate having first and second opposing surfaces;
- a first continuous thermoplastic film having opposed inner and outer surfaces, said inner surface of said first continuous thermoplastic film being adhered to the first surface of said paper substrate;
- and
- a first layer of an ink absorbent particulate composition bonded to said outer surface of said first continuous thermoplastic film, whereby said first layer is printable through application of ink in patterns to an outer surface thereof.
1 more element
Dependencies are inferred from the claim text.