Method of forming a photographic emulsion layer
AssigneePolaroid Corporation
InventorVivian K. Walworth
Life of this patent
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Abstract
Silver halide emulsion layers are formed by applying a water-soluble silver halide complex to a gelled substrate, and treating to decomplex to form silver halide crystals therein.
Claims17
A method for forming a photographic silver halide emulsion layer which comprises applying to a layer of gelled colloid binder material an aqueous solution of a water-soluble complex of silver halide complexed with excess halide and crystallizing photosensitive silver halide crystals by decomplexation of said silver halide complex within said gelled layer.
A process for forming a multicolor photosensitive element which comprises depositing on a substrate a multiplicity of elemental portions wherein each of said elemental portions comprises dye image-forming material and sensitizing dye disposed in a colloid binder material wherein said elemental portions are made up of at least two sets of elemental portions sensitive to light of different wavelengths, which elemental portions form a pattern which simulates a color screen type of pattern;
- gelling said binder material and imbibing into said gelled elemental portions an aqueous solution of a water-soluble complex of silver halide complexed with excess halide and crystallizing photosensitive silver halide crystals by decomplexation of said halide complex within said gelled layer.
Dependencies are inferred from the claim text.