G - Physics – 03 – C
Patent
G - Physics
03
C
96/32
G03C 8/12 (2006.01)
Patent
CA 1112091
PHOTOGRAPHIC PROCESS FOR THE PRODUCTION OF POSITIVE COLOUR IMAGES Abstract of the Disclosure Coloured positive images are obtained from colour negatives by the dye diffusion transfer process in which a material comprising on a preferably opaque support layer on image- receiving layer and in detachable connection therewith a light sensitive element consisting of one or more negatively functioning silver halide emulsion layers and a non-diffusing dye-providing compound associated with each of said emulsion layer, said dye-providing compound undergoing an alkaline splitting reaction in it oxidized form to release a diffusible dye, is exposed to a negative original and developed using black-and-white developers in the presence of an alkaline processing liquid to release an image distribution of diffusible dyes from the dye-providing compound, whereupon the image distribution of diffusible dyes is transferred to the image- receiving layer and the originally light-sensitive element is removed from the image-receiving layer.
289013
Liebe Werner
Lohmer Karl
Marx Paul
Pelz Willibald
Peters Manfred
Agfa-Gevaert Aktiengesellschaft
Fetherstonhaugh & Co.
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