Photographic material containing silver halide grains doped with

Details Photographic material containing silver halide grains doped with Photographic material containing silver halide grains doped with

1994-08-22

1996-05-21

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430569, 430599, 430604, 430605, 430606, G03C 109

Patent

active

055188710

ABSTRACT:
A silver halide photographic material comprises a support and a light-sensitive layer provided thereon. The light-sensitive layer contains silver halide grains dispersed in gelatin. A hexa-coordinated cyano-complex is doped in the silver halide grains. The amount of the complex is in the range of 1.times.10.sup.-7 to 5.times.10.sup.-3 mol based on 1 mol of silver halide. A localized phase of the complex is present on the surface of the grains. The localized phase contains the complex in an amount of 1.times.10.sup.-5 to 1.times.10.sup.-1 mol based on 1 mol of silver halide. According to the present invention, the silver halide grains are doped in the presence of a compound having a function of inhibiting a reaction of the cyano-complex with gelatin, or the compound having the function is added to the grains after the grains are doped.

REFERENCES:
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patent: 5213953 (1993-05-01), Yamamoto
patent: 5264336 (1993-11-01), Marchetti et al.
patent: 5268264 (1993-12-01), Marchetti et al.
patent: 5348848 (1994-09-01), Murakami et al.

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