Silberhalogenidemulsion, Verfahren zu ihrer Herstellung und photographisches Silberhalgonidmaterial

Emulsion à l'halogénure d'argent, procédé pour sa préparation et matériau photographique à l'halogénure d'argent

Silver halide emulsion, preparation method thereof and silver halide photographic material

Abstract

A silver halide emulsion is disclosed, comprising a dispersing medium and silver halide grains having a variation coefficient of grain size distribution of not more than 20%, at least 50% of total grain projected area of the emulsion being accounted for by tabular grains an aspect ratio of at least 5, the tabular grains each having a surface region having an iodide content more than an average iodide content of the grains, the tabular grains having dislocation lines in a central region and a peripheral region of the major faces, the peripheral region having a silver chalcogenide nucleus-containing phase, the central region having silver nucleus-containing phase, and the peripheral region having at least 10 dislocation lines per grain.

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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    EP-0348934-A2January 03, 1990Fuji Photo Film Co., Ltd.Emulsion à l'halogénure d'argent et matériau photographique utilisant celle-ci
    EP-0909979-A2April 21, 1999Konica CorporationSilver halide emulsion
    JP-H02191938-AJuly 27, 1990Fuji Photo Film Co LtdSilver halide emulsion, its production and color photographic sensitive material using this emulsion
    US-5496694-AMarch 05, 1996Fuji Photo Film Co., Ltd.Silver halide photographic light-sensitive material

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