Abstract:
Metal-complexed antifoggant precursors of the formula A-X-A, wherein each A is an antifoggant nucleus resultant from the deprotonization of the antifoggant A-H, and X is a divalent metal, provide substantially no antifoggant functionality on photographic systems in which they are contained until cleavage of the antifoggant nuclei from the complex is accomplished.
Abstract:
DIFFUSION TRANSFER PHOTOGRAPHIC PRODUCTS COMPRISING A SUPPORT CARRYING AT LEAST TWO SELECTIVELY SENSITIZED SILVER HALIDE EMULSION LAYERS, EACH HAVING A DYE WHICH IS A SILVER HALIDE DEVELOPING AGENT OF PREDETERMINED COLOR ASSOCIATED THEREWITH, AND A LAYER INTERMEDIATE THE EMULSION LAYERS COMPRISING A DYE IMPERMEABLE COALSCED ESSENCE OF AN AQUEOUS FILM-FROMING POLYMER DISPERSION AND A PROCESSING COMPOSITION PERMEABLE MATERIAL ASSOCIATED THEREWITH AND ADAPTED TO RENDER SAID LAYER PERMEABLE TO SOLUBILIZED DYE IMAGE-FORMING MATERIAL SUBSQUENT TO BEING CONTACTED WITH PROCESSING COMPOSITION.
Abstract:
Photographic products for forming diffusion transfer images, particularly multicolor transfer images, which products contain one or more gelatin-containing layers including the addition of a water-soluble cellulose salt.
Abstract:
A photosensitive silver halide emulsion is disclosed which is spectrally sensitized with a dye combination comprising a symmetrical benzoxazolocarbocyanine dye of the formula:
WHEREIN R represents hydrogen or a lower alkyl group possessing from 1 to 3 carbon atoms, inclusive; and each R1 represents a carboxyalkyl or sulfoalkyl group possessing from 1 to 4 carbon atoms, inclusive, in the alkylene chain; Y represents an anion; and n represents 0 or 1, with n 0 in the inner salt form of the dye; and an unsymmetrical benzimidazolocarbocyanine dye of the formula:
WHEREIN Y and n possess the same meaning as in Formula I; X is S or Se; R2 is a lower alkyl group possessing from 1 to 3 carbon atoms inclusive; R3 and R4 are the same or different and represent a carboxyalkyl or sulfoalkyl group, each possessing from 1 to 4 carbon atoms, inclusive, in the alkylene chain, or a lower alkyl group, with at least one of R3 and R4 being said carboxyalkyl or sulfoalkyl group; R5 is halogen, cyano, or lower carboxyalkyl; R6 is hydrogen or halogen; and Z represents the non-metallic atoms necessary to complete a benzothiazole or benzoselenazole nucleus.
Abstract:
PHOTOGRAPHIC PRODUCTS FOR FORMING DIFFUSION TRANSFER IMAGES, PARTICULARLY MULTICOLOR TRANSFER IMAGES, WHICH PRODUCTS CONTAIN ONE OR MORE GEL-CONTAINING LAYERS INCLUDING AN ANIONIC POLYMERIC MATERIAL.