Process for bleaching color photographic sensitive materials

Details Process for bleaching color photographic sensitive materials Process for bleaching color photographic sensitive materials

1982-11-12

1984-07-03

Brown, J. Travis

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430429, 430430, 430455, 430461, 430566, 430611, G03C 700

Patent

active

044580100

ABSTRACT:
A process for bleaching color photographic sensitive materials and color photographic sensitive materials are disclosed. The process comprises bleaching the silver halide color photographic sensitive materials which are comprised of a support base, a silver halide emulsion layer, and a compound represented by the general formula (I) or strong acid salts thereof in a layer which does not substantially form silver salts of said compounds with a treating solution containing persulfate after being exposed to the light and carrying out color development: ##STR1## wherein M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal, a quaternary ammonium group, a quaternary phosphonium group, an amidino group or ##STR2## R.sup.1 and R.sup.2 each represents a hydrogen atom or an aliphatic group, and m represents an integer of 2 to 4. The bleaching process effectively bleaches color sensitive materials having a high silver content and/or a colloidal silver layer without creating a bad odor.

REFERENCES:
patent: 3647469 (1972-03-01), Huckstadt et al.
patent: 3772020 (1973-11-01), Smith
patent: 3893858 (1975-07-01), Wabnitz
patent: 4163669 (1979-08-01), Kanada et al.
patent: 4292401 (1981-09-01), Itoh et al.
patent: 4293639 (1981-10-01), Itoh et al.

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