Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

1991-07-17

1993-04-20

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Silver halide colloid tanning process, composition, or product

430598, G03C 106

Patent

active

052042146

ABSTRACT:
A silver halide photographic material which provides a negative image is disclosed. The photographic material contains a compound represented by formula (I): ##STR1## wherein R represents an aliphatic group, an aromatic group, or a heterocyclic group; and Z represents an atomic group necessary to form a nitrogen-containing heterocyclic aromatic group, and provides a negative image having high contract, high sensitivity, an satisfactory dot image quality.

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European Search Report, 90 10 7561, Dec. 16, 1991, H. Stock, Berlin.
Patent Abstracts of Japan, vol. 13, No. 291 (p-893) (3639), Jul. 6, 1989.
Research Disclosure, No. 235, Nov. 1983, "Development Nucleation by Hydrazine and Hydrazine Derivatives".

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