Silver salt diffusion transfer using organic phosphonic acid com

Details Silver salt diffusion transfer using organic phosphonic acid com Silver salt diffusion transfer using organic phosphonic acid com

1988-09-16

1990-03-27

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430233, 430251, 430491, 430610, G03C 554

Patent

active

049120158

ABSTRACT:
A method of forming an image by silver salt diffusion transfer comprising (a) developing a light-sensitive element including an imagewise exposed light-sensitive silver halide emulsion layer with an alkali processing solution comprising a silver halide solvent to convert at least a portion of unexposed silver halide in the emulsion layer into a transferable silver complex salt, and (b) transferring at least a portion of the silver complex salt to an image-receiving element containing a silver precipitating agent to form an image on the image-receiving layer, wherein the processing is carried out in the presence of an organic phosphonic acid compound.

REFERENCES:
patent: 3201246 (1965-08-01), Allen et al.
patent: 3488707 (1970-01-01), Willems et al.
patent: 3994730 (1976-11-01), Frank et al.
patent: 4689287 (1987-08-01), Katoh et al.

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