Photographic film unit having gravure coated, tapered thickness

Details Photographic film unit having gravure coated, tapered thickness Photographic film unit having gravure coated, tapered thickness

1972-11-06

1976-03-16

Lesmes, George F.

Coating processes

Nonuniform coating

Paper or textile base

101150, 101170, 427428, 96 76C, 96 76R, 96 77, 428 68, 428138, 428156, 428161, 428172, 428201, B05D 500

Patent

active

039447014

ABSTRACT:
Method for making sheet materials are disclosed having a layer or layers of a non-uniform thickness, in particular a method of making sheet materials tapered from a maximum thickness near one and to a minimum thickness near the opposite end; and sheet materials prepared by such methods. The preparation of photographic film assemblages is disclosed including a first sheet material including at least one photosensitive layer and a second sheet material in super position therewith, which assemblages are adapted for forming photographic images viewable as reflection prints without separation of the respective sheet materials.

REFERENCES:
patent: 3496005 (1970-02-01), Ishiwata et al.
patent: 3499786 (1970-03-01), Fry
patent: 3694206 (1972-09-01), Downey
patent: 3761268 (1973-09-01), Land et al.

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