Method for minimizing the aerial oxidation of photographic developers
AssigneeEastman Kodak Company
InventorsDidier J. Martin, Olivier J. Poncelet, Jean-Claude F. Boivin, Gaetan J. Mairesse, Guy J. Nowogrocki
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Abstract
The invention concerns a method for decreasing the oxygen content of the atmosphere above photographic processing baths. The method comprises using a solid electrolyte which is a compound of bismuth, vanadium or another transition metal. The oxidation in air is thus minimized and the life of the bath is extended.
Claims13
A method of treating a photographic bath comprising contacting the atmosphere in the vicinity of the free surface of said photographic bath with a cell comprising electrodes and a solid electrolyte, wherein said solid electrolyte is a substance that is conductive to O.sup.2- ions in the presence of an electric current and at a temperature, such that said electrodes and said electrolyte can dissociate the oxygen into O.sup.2- ions.
Dependencies are inferred from the claim text.