Patent ID: 6013424
Filing Date: 2000-01-11
Classification: G03C

Abstract:
A fixing composition comprising:a) at least 0.5 mol/l of a thiosulfate fixing agent, andb) at least 0.001 mol/l of a triazole of Structure I, II or III or any of their tautomeric forms: ##STR8## wherein R and R.sub.1 are independently hydrogen or a monovalent substituent, provided that the triazole of Structure I, II or III or any of its tautomeric forms has at least one aminoalkyl group that has up to 12 carbon atoms in the alkyl portion attached to the triazole ring, and any two adjacent substituent or aminoalkyl groups can together form a fused ring with the triazole ring, provided that R and R.sub.1 are not both hydrogen, and neither is an amino group,wherein the concentration of ammonium ions is at least 50 mol % of all cations in said composition.