Method of processing photographic silver dye bleach materials

Details Method of processing photographic silver dye bleach materials Method of processing photographic silver dye bleach materials

1976-11-11

1979-02-06

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

With means for vapor or liquid contact

96 48R, 96 66R, 96 60BF, G03C 700, G03C 524, G03C 530, G03C 532

Patent

active

041382560

ABSTRACT:
A method of processing photographic silver dye bleach materials which have been exposed imagewise is provided. The process steps are (1) silver developing, (2) dye bleaching, (3) silver bleaching and (4) fixing. The treatment baths for the process steps (2), (3) and (4), or the combined treatment baths useful for process step (3) with at least one the process steps (2) or (4) contain water-soluble tertiary phosphines as silver ligands. These phosphines effect an acceleration of the dye and silver bleaching and they are further suitable stabilizers and optionally antioxidants which yield stable treatment baths.

REFERENCES:
patent: 3297446 (1967-01-01), Dunn
patent: 3442653 (1969-05-01), Dunn
patent: 3578449 (1971-05-01), Bloom
patent: 3594169 (1971-07-01), Bloom
patent: 3640713 (1972-02-01), Buckler et al.
patent: 3716362 (1973-02-01), Meier
patent: 3954473 (1976-05-01), Lambert
patent: 3957516 (1976-05-01), Schellenberg et al.
patent: 4003746 (1977-01-01), Bigelow

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