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Title:
FLAT PLATY SILVER HALIDE EMULSION CONTAINING MONODISPERSE ACICULAR GRAIN AS DEFORMED GRAIN AND PHOTOGRAPHIC SENSITIVE MATERIAL CONTAINING THE SAME
Document Type and Number:
Japanese Patent JP2002072397
Kind Code:
A
Abstract:

To provide a flat platy silver halide emulsion having good filterability in spite of a high aspect ratio and to provide a high sensitivity photographic sensitive material using the emulsion and excellent in productivity.

The silver halide emulsion contains acicular silver halide grains having 0.05-1 μm length in the minor axis direction, 5-30 μm length in the major axis direction and ≤25% coefficient of variation in length in the major axis direction as deformed grains by 50-500 ppm based on the total number of all grains and contains flat platy silver halide grains having ≥0.3 μm average equivalent circular diameter and an aspect ratio (equivalent circular diameter to thickness ratio) of 5-100 by ≥50% of the total projected area of all silver halide grains. The photographic sensitive material contains the emulsion.


Inventors:
FUJITA MUNEHISA
Application Number:
JP2000265955A
Publication Date:
March 12, 2002
Filing Date:
September 01, 2000
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G03C1/035; G03C1/015; G03C1/08; (IPC1-7): G03C1/035; G03C1/015; G03C1/08
Attorney, Agent or Firm:
Toshizo Iida