Process for the production of a chromogenically developed color

Details Process for the production of a chromogenically developed color Process for the production of a chromogenically developed color

1996-05-15

1998-03-24

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Color imaging process

Using identified radiation sensitive composition in the...

430357, 430446, 430448, G03C 7407

Patent

active

057311331

ABSTRACT:
The storage stability of photographic color images obtained by chromogenic development may be improved by compounds of the formula I, which are capable of reacting with primary amines, in particular color developer compounds (reagent for primary amines). The compounds of the formula may be added to the color photographic recording material or to a treatment bath downstream from color development. Compounds of the formula I are moreover suitable as an additive to a spent photographic processing bath or its overflow in order to reduce therein the content of color developer compounds before the processing bath or the overflow is disposed of or regenerated for further use. ##STR1## In formula I: A means --OR.sup.2, --SR.sup.2 or --NR.sup.2 R.sup.3 ;

REFERENCES:
patent: 4301243 (1981-11-01), Pushel et al.
patent: 5066573 (1991-11-01), Matushita et al.

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