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Patent Searching and Data


Title:
SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL
Document Type and Number:
Japanese Patent JPH0643574
Kind Code:
A
Abstract:

PURPOSE: To provide the silver halide photographic sensitive material having a high sensitivity even at high illuminance, has a hard contrast and a high spectral sensitization sensitivity with the lesser intrinsic desensitization by spectral sensitizing dyestuff.

CONSTITUTION: This photographic material has silver halide emulsion layers on a base and is constituted by incorporating novel silver halide particles into the emulsion layers. The above-mentioned silver halide emulsion is formed by subjecting the emulsion to chemical sensitization in the presence of ≤10g/ silver mol gelatin, more preferably in the absence of the gelatin and in the presence of a synthetic high-polymer compd. having a protective colloidal characteristic and hexacoordination cyanocomplex. The supply of silver and halogen in the nucleus formation and/or crystal growth of the silver halide particles to be incorporated into this silver halide emulsion is preferably executed by supplying the very small silver halide particles prepd. in the presence of the synthetic high-polymer compd. having the protective colloidal property.


Inventors:
OZEKI TOMOYUKI
IGARI SHINJI
Application Number:
JP21843292A
Publication Date:
February 18, 1994
Filing Date:
July 24, 1992
Export Citation:
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Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
G03C1/015; G03C1/04; G03C1/07; G03C1/08; (IPC1-7): G03C1/07; G03C1/015; G03C1/04; G03C1/08
Attorney, Agent or Firm:
Yasuo Yanagawa