Process for removal of silver from photographic film

Details Process for removal of silver from photographic film Process for removal of silver from photographic film

1977-02-03

1980-07-22

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Including post developing step

354317, 134 9, 134 64P, G03C 526

Patent

active

042137829

ABSTRACT:
Processes and apparatus for removal of silver from exposed photographic film by transporting the film through hypochlorite solution in a reagent tank for a predetermined time, draining off precipitated silver chloride, washing the treated film in a wash tank, and drying the treated film in a dryer. Another embodiment of the process involves masking one side of exposed radiograph film, and removing the emulsion and/or the silver on only one side of the exposed radiograph.

REFERENCES:
patent: 2572576 (1951-10-01), Stybel
patent: 2997937 (1961-08-01), Limberger
patent: 3546149 (1970-12-01), Fabian
patent: 3886576 (1975-05-01), Stoffel
patent: 4049454 (1977-09-01), Van Doorselaer et al.

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