Photographic fixer composition and method
AssigneeImation Corp.
InventorsFilippo Faranda, Elda Moizo, Carlo Marchesano
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Abstract
The present invention provides a fixer composition and a method of processing an exposed photographic silver halide element comprising the steps of developing by means of a developer comprising a silver halide developing agent and treating the developed element with a fixer composition, wherein the fixer composition comprises a silver halide solvent, a sulfite ion source, an aluminum salt hardening agent, a buffering agent, a sequestering agent and an .alpha.-ketocarboxylic acid compound in an amount of more than 2 grams per liter corresponding to the formula: R--CO--COOH wherein R represents a hydrogen atom or an organic group.
Claims19
Photographic fixer compositions comprising a silver halide solvent, a sulfite ion source, an aluminum salt hardening agent, a sequestering agent and an .alpha.-ketocarboxylic acid compound in an amount from 2.5 grams per liter.
Dependencies are inferred from the claim text.