Fogging solution for a reversal process

Details Fogging solution for a reversal process Fogging solution for a reversal process

1998-08-06

1999-10-05

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

430379, 430407, 430409, 430410, 430489, G03C 550

Patent

active

059622032

ABSTRACT:
A new fogging photographic processing solution for a reversal process comprises a compound (I) and a bi-nucleophilic agent. Compound (I) corresponds to the following formula: ##STR1## wherein A is a group capable of being adsorbed to the silver halide surface, L is a linking group and r is 0 or 1, R.sub.1 and R.sub.2 are independently selected from an alkyl group, substituted or unsubstituted, and an aryl group substituted or unsubstituted. A process of producing a positive image by imagewise exposure of a reversal silver halide material comprises contacting the material with the above fogging solution or by imagewise exposure of such a material containing a compound (I) and contacting the material with a solution comprising a bi-nucleophilic agent.

REFERENCES:
patent: 5156940 (1992-10-01), Kok et al.

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