Photographic colour developer composition containing an...

Details Photographic colour developer composition containing an... Photographic colour developer composition containing an...

G - Physics

03

C

96/60

G03C 5/30 (2006.01) G03C 5/305 (2006.01)

Patent

CA 1135554

PHOTOGRAPHIC COLOUR DEVELOPER COMPOSITION Abstract of the Disclosure A colour developer composition is provided which has substantially improved protection against oxidation of the colour developer and excellent sequestering proper- ties characterised in that the composition comprises an .alpha.-aminocarbonyl compound, an organo-phosphonic acid and an aminocarboxylic acid. A-G 1505

294636

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