Clay containing antistatic layer for photographic paper
AssigneeEastman Kodak Company
InventorsDebasis Majumdar, Sharon M. Melpolder, Charles C. Anderson, Paul A. Christian, Thomas N. Blanton
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Abstract
The present invention is a photographic paper which includes a paper sheet with a polyolefin resin layer on each surface of the paper sheet. The photographic paper includes a print retaining antistatic layer having a dry coverage of from 80 mg/m.sup.2 to 1000 mg/m.sup.2 on one of the free surfaces of the polyolefin layers. The print retaining antistatic layer includes a smectite clay, and a polymeric binder wherein the polymeric binder can sufficiently intercalate inside or exfoliate the smectite clay. The photographic paper can include a silver halide light sensitive emulsion layer on the other free surface.
Claims18
A photographic paper comprising a paper sheet with a polyolefin resin layer on each surface of said paper sheet;
- a print retaining antistatic layer having a dry coverage of from 10 mg/m.sup.2 to 10000 mg/m.sup.2 on one of the free surfaces of the polyolefin layers comprising:
- a smectite clay;
- and
- a polymeric binder selected from the group consisting of poly vinyl alcohols, poly ethylene oxides, polyacrylamides, polystyrene sulfonates, polymers of styrene, polymers of styrene derivatives, interpolymers of styrene, interpolymers of styrene derivatives, alkyl acrylates, alkyl methacrylates, derivatives of alkyl acrylates, derivatives of alkyl methacrylates, olefins, acrylonitriles, polyurethanes and polyester ionomers wherein the polymeric binder(s) can sufficiently intercalate inside or exfoliate said smectite clay.
A photographic paper comprising a paper sheet with a polyolefin resin layer on each surface of said paper sheet;
- a print retaining antistatic layer having a dry coverage of from 10 mg/m.sup.2 to 10000 mg/m.sup.2 on one of the free surfaces of the polyolefin layers comprising:
- a smectite clay;
- a polymeric binder selected from the group consisting of the poly vinyl alcohols, poly ethylene oxides, polyacrylamides, polystyrene sulfonates, polymers of styrene, polymers of styrene derivatives, interpolymers of styrene, interpolymers of styrene derivatives, alkyl acrylates, alkyl methacrylates, derivatives of alkyl acrylates, derivatives of alkyl methacrylates, olefins, acrylonitriles, plyurethanes and polyester ionomers wherein the polymeric binder can sufficiently intercalate inside or exfoliate said smectite clay;
- and
- a silver halide emulsion layer superposed on the other free surface of the polyolefin layer.
Dependencies are inferred from the claim text.