JPS57115539A - Silver halide photographic emulsion and its manufacture - Google Patents

Silver halide photographic emulsion and its manufacture

Info

Publication number
JPS57115539A
JPS57115539A JP193081A JP193081A JPS57115539A JP S57115539 A JPS57115539 A JP S57115539A JP 193081 A JP193081 A JP 193081A JP 193081 A JP193081 A JP 193081A JP S57115539 A JPS57115539 A JP S57115539A
Authority
JP
Japan
Prior art keywords
silver halide
silver
nuclei
photographic emulsion
emulsion
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.)
Granted
Application number
JP193081A
Other languages
Japanese (ja)
Other versions
JPH0253774B2 (en
Inventor
Hideki Takiguchi
Hiroo Koitabashi
Mikio Miura
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 JP193081A priority Critical patent/JPS57115539A/en
Publication of JPS57115539A publication Critical patent/JPS57115539A/en
Publication of JPH0253774B2 publication Critical patent/JPH0253774B2/ja
Granted 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
    • G03C1/015—Apparatus or processes for the preparation of emulsions
    • 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
    • G03C2200/00—Details
    • G03C2200/06—Additive

Abstract

PURPOSE:To prepare a silver halide photographic emulsion having silver-produced photosensitive nuclei, high sensitivity, and low fog, by forming photosensitive nuclei on silver halide grains by sulfur sensitization or the like, and subjecting said nuclei to reductive and oxidative environments. CONSTITUTION:Photosensitive nuclei are formed on silver halide grains by subjecting a photographic emulsion consisting of a silver halide, such as silver bromide or silver iodobromide to sulfur sensitization, metal doping, or the like. About 0.001-10mg reductive substance, e.g. thiourea dioxide per mole of silver halide is added to said emulsion, and reductive ripening is carried out under the following conditions: temperature 30-80 deg.C; time 10-200min; pH 5-11; and pAg 1-10, to prouce silver nuclei on said silver halide grains. The emulsion is then subjected to an oxidative environment by raising its pAg and/or lowering its pH, thus producing a desired silver halide photographic emulsion.
JP193081A 1981-01-09 1981-01-09 Silver halide photographic emulsion and its manufacture Granted JPS57115539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP193081A JPS57115539A (en) 1981-01-09 1981-01-09 Silver halide photographic emulsion and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP193081A JPS57115539A (en) 1981-01-09 1981-01-09 Silver halide photographic emulsion and its manufacture

Publications (2)

Publication Number Publication Date
JPS57115539A true JPS57115539A (en) 1982-07-19
JPH0253774B2 JPH0253774B2 (en) 1990-11-19

Family

ID=11515318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP193081A Granted JPS57115539A (en) 1981-01-09 1981-01-09 Silver halide photographic emulsion and its manufacture

Country Status (1)

Country Link
JP (1) JPS57115539A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61267752A (en) * 1985-05-23 1986-11-27 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS61267753A (en) * 1985-05-23 1986-11-27 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS62260137A (en) * 1986-05-02 1987-11-12 Fuji Photo Film Co Ltd Silver halide photographic sensitive material
JPH01121844A (en) * 1987-11-06 1989-05-15 Fuji Photo Film Co Ltd Silver halide photographic sensitive material
JPH0432831A (en) * 1990-05-29 1992-02-04 Fuji Photo Film Co Ltd Silver halide photographic sensitive material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503619A (en) * 1973-04-26 1975-01-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503619A (en) * 1973-04-26 1975-01-16

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61267752A (en) * 1985-05-23 1986-11-27 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS61267753A (en) * 1985-05-23 1986-11-27 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS62260137A (en) * 1986-05-02 1987-11-12 Fuji Photo Film Co Ltd Silver halide photographic sensitive material
JPH01121844A (en) * 1987-11-06 1989-05-15 Fuji Photo Film Co Ltd Silver halide photographic sensitive material
JPH0432831A (en) * 1990-05-29 1992-02-04 Fuji Photo Film Co Ltd Silver halide photographic sensitive material

Also Published As

Publication number Publication date
JPH0253774B2 (en) 1990-11-19

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