Back to results
US 4,760,015 AGranted
Stabilization of a photographically produced silver image using an amino-1,2,4-triazole
AssigneeAgfa-Gevaert
InventorsWerner Berthold, Gunther Mahlberg, Paul Marx, Hans hlschlager
Life of this patent
Estimating the term…
Abstract
Photographically produced black-and-white images (silver images) are stabilized against subsequent destruction of the silver image, in particular against the occurrence of so-called microspot defects, by treatment of the finished silver image with an aqueous after-treatment bath containing an amino-1,2,4-triazole.
Claims4
Process for the stabilization of a photographically produced silver image by treatment of the finished silver image with an after-treatment bath, characterised in that the after-treatment bath contains an amino-1,2,4-triazole.
Dependencies are inferred from the claim text.