Silver halide photographic material and process for the developm

Details Silver halide photographic material and process for the developm Silver halide photographic material and process for the developm

1991-05-14

1993-07-20

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, 430569, 430604, 430607, G03C 108

Patent

active

052292630

ABSTRACT:
A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing silver halide grains, wherein said silver halide grains have a silver chloride content of 30 mol% or more and contain (i) and iridium compound in an amount of 10.sup.-6 mol or less per mol of silver halide, (ii) at least one compound selected from the group consisting of iron, rhenium, ruthenium and osmium compounds in an amount of 10.sup.-3 mol or less per mol of silver halide, and (iii) (a) at least one compound selected from the group consisting of compounds represented by general formula (1-a), (1-b) and (1-c): ##STR1## wherein Z represents a C.sub.1-18 alkyl group, a C.sub.6-18 aryl group or a heterocyclic group; Y represents an atomic group required for the formation of a C.sub.6-18 aromatic ring or a heterocyclic group, said groups represented by Z or formed by Y may be substituted with at least one substituent; M represents a metallic atom or organic cation; and n represents an integer from 2 to 10, and/or (b) the silver halide grains have been chemically sensitized at a pH of 5.5 or less. A process for the development of the silver halide photographic material is also provided wherein processing is effected by an automatic developing machine in a total processing time of 20 to 60 seconds.

REFERENCES:
patent: 3047393 (1962-07-01), Herz et al.
patent: 3890154 (1975-06-01), Ohkubo et al.
patent: 4945035 (1990-07-01), Keevert, Jr. et al.
patent: 5015567 (1991-05-01), Suga et al.
patent: 5057402 (1991-10-01), Shiba et al.

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