Reversal color photographic process

Details Reversal color photographic process Reversal color photographic process

1977-08-08

1979-07-24

Kelley, Mary F.

Gas separation: apparatus

Electric field separation apparatus

And serially arranged nonelectrical separator

96 22, 96 66R, G03C 550

Patent

active

041621611

ABSTRACT:
A reversal color photographic process which comprises subjecting an exposed silver halide color photographic light-sensitive material to a first black-and-white development and then (a) color developing the light-sensitive material with a color developing solution containing a water-soluble stannous salt and a phosphonocarboxylic acid compound or (b) processing the light-sensitive material with a fogging bath containing a water-soluble stannous salt and a phosphonocarboxylic acid compound and then color developing the light-sensitive material, the phosphonocarboxylic acid compound being represented by the general formula (I): ##STR1## wherein R.sub.1 is --COOM' or --PO(OM).sub.2 ;

REFERENCES:
patent: 3617282 (1971-11-01), Bard
patent: 3933427 (1976-01-01), Bohnsack
patent: 4083723 (1978-04-01), Shimamura et al.

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