Photographic element for tanning development and method for obtaining colored relief image
AssigneeMinnesota Mining and Manufacturing Company
InventorsMarco Beruto, Piero Ramello
Life of this patent
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Abstract
A photographic element for tanning development which comprises a support, a layer of silver halide emulsion in non-hardened gelatin including a tanning developer dispersed therein, and over said emulsion layer, a layer of non-hardened gelatin comprising at least one colored pigment dispersed therein, characterized by the silver in said silver halide emulsion layer being present in a quantity of less than 0.6 g/m.sup.2 with a silver/gelatin ratio of less than 0.4. A method for obtaining a colored relief image in such an element is shown.
Claims9
A photographic element comprising a support layer and spread over said support, a layer of silver halide emulsion in non-hardened gelatin with a tanning developer dispersed therein and, spread over said emulsion layer, a layer of non-hardened gelatin having at least one colored pigment dispersed therein, the silver of said layer of silver halide emulsion being present in a quantity of less than 0.6 grams per square meter, and the gelatin of said emulsion layer being present in a quantity such as to provide a silver/gelatin ratio of less than 0.4.
Dependencies are inferred from the claim text.