Roomlight handleable UV sensitive direct positive silver halide

Details Roomlight handleable UV sensitive direct positive silver halide Roomlight handleable UV sensitive direct positive silver halide

1991-09-16

1993-06-22

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430596, 430613, 430614, 430603, 430940, G03C 1485

Patent

active

052216012

ABSTRACT:
UV sensitive direct positive silver halide photographic material for duplicating processes which can be safely handled under roomlight conditions, said material comprising a support having thereon at least one silver halide emulsion layer comprising a prefogged direct positive silver halide emulsion, preferably one having a chloride content of at least 70 mole % and comprising internal electron traps, said emulsion layer or a hydrophilic colloid layer in water-permeable relationship to said emulsion layer containing at least one nitro-substitued indazole or benzimidazole derivative and at least one non-nitro-substituted indazole or benzimidazole derivative.

REFERENCES:
patent: 4820625 (1989-04-01), Saeki et al.
patent: 4990438 (1991-02-01), Ogi et al.

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