Process for removal of silver from photographic film

摘要

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.