G - Physics – 03 – C
Patent
G - Physics
03
C
G03C 8/08 (2006.01) G03C 8/36 (2006.01)
Patent
CA 2212621
There is described a multicolor diffusion transfer film unit having a plurality of different color image components, each of which includes a color-sensitive silver halide emulsion in association with a corresponding image dye-providing material and a first silver halide developer which takes part in photographic development to provide an imagewise pattern of diffusible image dye-forming material as a function of photoexposure. At least one of said color image components includes a second silver halide developer, or a precursor thereof, which is capable of developing silver halide indiscriminately and which is made available after photographic development in the color image components in which it is located is substantially completed.
L'invention concerne un élément de film à diffusion-transfert multicolore, comprenant plusieurs composantes d'image couleur différentes comprenant chacune une émulsion à l'halogénure d'argent sensible à la couleur, associée à une substance produisant un colorant d'image et un premier développeur à l'halogénure d'argent participant au développement photographique pour la production d'un motif sous forme d'image d'une substance formant un colorant d'image diffusible en fonction de l'exposition. Au moins une desdites composantes de l'image couleurs comporte un second développeur à l'halogénure d'argent ou un précurseur de celui-ci, pouvant développer l'halogénure d'argent sans discrimination et disponible après que le développement photographique dans la composante d'image couleur dans laquelle il se trouve a été effectué.
Kingsley Edward D.
Mccaskill Emmett S.
Mehta Avinash C.
Waterman Kenneth C.
Polaroid Corporation
Smart & Biggar
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