Hybrid graphic arts films with reduced occurrence of pepper fog

Details Hybrid graphic arts films with reduced occurrence of pepper fog Hybrid graphic arts films with reduced occurrence of pepper fog

1994-05-24

1996-02-27

Wright, Lee C.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

Process using lithographic infectious developer

430264, G03C 106

Patent

active

054947766

ABSTRACT:
The present invention provides a photographic element developed in the presence of a hydrazide which displays high contrast but low levels of pepper fog. The novel silver halide photographic elements comprise, in at least one layer of the element, a pepper reducing agent. The pepper reducing agent of this invention is a compound having at least one nitrogen containing, heterocyclic ring group and at least one carbonyl group in or attached to said ring. The pepper reducing agents preferably are selected from the group containing 2,5-piperazinediones; glycol urils; 2,3-pyrazinedicarboxamides; 3-iminoisoindolinones; or glutarimides.

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