JPS643641A - Silver halide photographic sensitive material having high sensitivity - Google Patents

Silver halide photographic sensitive material having high sensitivity

Info

Publication number
JPS643641A
JPS643641A JP15944887A JP15944887A JPS643641A JP S643641 A JPS643641 A JP S643641A JP 15944887 A JP15944887 A JP 15944887A JP 15944887 A JP15944887 A JP 15944887A JP S643641 A JPS643641 A JP S643641A
Authority
JP
Japan
Prior art keywords
silver halide
fogging
compd
high sensitivity
particle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15944887A
Other languages
Japanese (ja)
Inventor
Koji Ono
Hiroaki Shiozawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP15944887A priority Critical patent/JPS643641A/en
Publication of JPS643641A publication Critical patent/JPS643641A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/067—Additives for high contrast images, other than hydrazine compounds
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances

Abstract

PURPOSE:To rapidly obtain an image having the high sensitivity and contrast by fogging the surface of a silver halide core particle contd. in a silver halide emulsion which contains a specified compd. and has an inner fogging type by using a reducing agent, followed by adding an aqueous halide solution and the aqueous solution of a silver compd. to said particle at the same time. CONSTITUTION:The compd. shown by formula I is incorporated in the titled material comprising the silver halide emulsion having a surface latent image type, and the silver halide emulsion having an inner fogging type which has a fogging nucleus within a particle, and the surface of the silver halide core particle contd. in the silver halide emulsion having the internal fogging type is fogged by using the reducing agent, followed by adding the aqueous halide solution and the aqueous solution of the silver compd. to the particle at the same time. In formula I, X is sulfur atom or =N-R<4> group, R<1>-R<4> are each hydrogen atom, alkyl, aryl or a heterocyclic ring group which may be substd. Thus, the image of the titled material which has the high sensitivity and contrast is obtd.
JP15944887A 1987-06-26 1987-06-26 Silver halide photographic sensitive material having high sensitivity Pending JPS643641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15944887A JPS643641A (en) 1987-06-26 1987-06-26 Silver halide photographic sensitive material having high sensitivity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15944887A JPS643641A (en) 1987-06-26 1987-06-26 Silver halide photographic sensitive material having high sensitivity

Publications (1)

Publication Number Publication Date
JPS643641A true JPS643641A (en) 1989-01-09

Family

ID=15693976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15944887A Pending JPS643641A (en) 1987-06-26 1987-06-26 Silver halide photographic sensitive material having high sensitivity

Country Status (1)

Country Link
JP (1) JPS643641A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554585A1 (en) * 1991-12-19 1993-08-11 Agfa-Gevaert N.V. A method for making a lithographic printing plate according to the silver salt diffusion transfer process
JPH0683060A (en) * 1991-12-19 1994-03-25 Agfa Gevaert Nv Manufacture of lithographic printing plate by silver salt diffusion transfer method
JPH09262809A (en) * 1996-03-28 1997-10-07 Kiyokushin:Kk Apparatus for manufacturing polygonal material from log material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0554585A1 (en) * 1991-12-19 1993-08-11 Agfa-Gevaert N.V. A method for making a lithographic printing plate according to the silver salt diffusion transfer process
JPH0683060A (en) * 1991-12-19 1994-03-25 Agfa Gevaert Nv Manufacture of lithographic printing plate by silver salt diffusion transfer method
JPH09262809A (en) * 1996-03-28 1997-10-07 Kiyokushin:Kk Apparatus for manufacturing polygonal material from log material

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