Process for treating a photographic bath containing organic contaminants
AssigneeEastman Kodak Company
InventorsOlivier J. Poncelet, Jeannine Rigola, Danielle M. Wettling
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Abstract
The present invention concerns a process for treating photographic baths containing organic contaminants and a device for implementing this method. The process for treating a photographic bath containing contaminants comprises the step of putting the photographic bath in contact with a photographically inert material, resistant to a high pH and having a lipophilic surface. This method affords an improvement in the processing of photographic products.
Claims8
Process for eliminating tars from photographic baths which comprises contacting the photographic bath containing the tars with a lipophilic device obtained by reacting a silane film-forming compounds selected from alkylchlorosilane or alkylalkoxysilane wherein the alkyl group comprises at least 3 carbon atoms with a support having an active group capable of reacting with the silane film-forming componds, and thus trapping the tars.
Process for eliminating tars from photographic baths which comprises contacting the photographic bath containing the tars with a lipophilic device obtained by reacting a a silane film-forming compounds selected from alkylchlorosilane or alkylalkoxysilane wherein the alkyl group comprises at least 8 carbon atoms with a support having an active group capable of reacting with the silane film-forming componds, and this trapping the tars.
Process for eliminating tars from photographic baths which comprises contacting the photographic bath containing tars with a lipophilic device obtained by reacting a a silane film-forming compounds selected from alkylchlorosilane or alkylalkoxysilane wherein the alkyl group comprises at least 8 carbon atoms with a support having a hydroxyl active group capable of reacting with the silane film-forming componds, and thus trapping the tars.
Process for eliminating tars from photographic baths which comprises contacting the photographic bath containing tars with a lipophilic device comprising a support having grafted theron an alkyl siloxane wherein the alkyl group conprises at least 3 carbon atoms, thus trapping the tars.
Dependencies are inferred from the claim text.