Supports for photographic printing paper

Details Supports for photographic printing paper Supports for photographic printing paper

1977-05-19

1978-04-25

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

156229, 428212, 428213, 428328, 428407, 428483, 428515, 428516, B32B 300, B32B 502

Patent

active

040863832

ABSTRACT:
A support for a photographic printing paper comprising (a) a polyolefin synthetic resin layer containing a white inorganic filler, (b) an opaque layer of a synthetic paper or a synthetic resin film, (c) a synthetic resin layer having a greater stiffness than the polyolefin synthetic resin layer and (d) a synthetic paper or a synthetic resin film layer on which writing is possible, wherein the relative thickness of the polyolefin synthetic resin layer (a) is not more than about 20% of the total thickness of the support and the relative thickness of the synthetic resin layer (c) having greater stiffness than the polyolefin synthetic resin layer (a) is not less than about 15% of the total thickness of the support.

REFERENCES:
patent: 3799828 (1974-03-01), Takashi et al.
patent: 3841943 (1974-10-01), Takashi et al.

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