Method of production of photographic images by diffusion - transfer of the dye and the photographic material proper in this

摘要

P process for the production of a photographic image by the use of a material with the silver halide. / p & & p & the method consists in using a photographic assembly which forms at least during the development of the silver halide, in order, optionally a layer of super - coating, of at least one layer of silver halide emulsion layer, a bite to dye and of a base support, the intermediate layers possibly located between each of said components and in combination with the layer of silver halide emulsion of a compound of general formula: / p & & p & d - e - f - bal in which d is a group containing the remainder of a colorant diffusible, bal is a ballast, d and e are connected by any type of chemical bond and e and f show a connection system, a single or double bond which binds to and bal and has a potential for reduction - above - 200 mv measured with respect to a standard electrode with hydrogen at a ph of less than 3, this connection can be broken by reduction at a ph of less than 3 with the aid of a reducing agent, which is capable of acting at a ph of less than 3. / p