Patent number: 4987059
Abstract: Excellent image silver stability is obtained without intermediate washing after fixing and without a special finishing bath by a process for stabilizing a silver image produced by exposure, development and fixing of a photographic material containing at least one silver halide emulsion layer, in which, immediately after fixing, the photographic material is subjected to treatment by a stabilizing bath containing a compound corresponding to general formula (I) ##STR1## in which X=Cl, BrR.sup.1 =H, C.sub.1-4 alkyl, C.sub.6-10 aryl,R.sup.2 =CHO, COOH, COONa, CH.sub.2 COOH, CH.sub.2 COONa, CONR.sub.2.sup.3, CONHR.sup.3,R.sup.3 =H, C.sub.1-2 alkyl,and a compound corresponding to formula II ##STR2## and/or to formula III ##STR3## in which R.sup.3 and R.sup.4 may be the same or different and represent H, --NH.sub.2, alkyl, alkenyl, cycloalkyl, aryl, alkoxy, alkylthio, alkylsulfonyl, sulfamoyl, acyl, --SH or a heterocyclic group.
Type:
Grant
Filed:
November 17, 1989
Date of Patent:
January 22, 1991
Assignee:
Agfa-Gevaert Aktiengesellschaft
Inventors:
Werner Berthold, Helmut Haseler, Paul Marx, Heinz Meckl, Hans hischlager