JPS5657034A - Silver halide photographic emulsion - Google Patents

Silver halide photographic emulsion

Info

Publication number
JPS5657034A
JPS5657034A JP13336379A JP13336379A JPS5657034A JP S5657034 A JPS5657034 A JP S5657034A JP 13336379 A JP13336379 A JP 13336379A JP 13336379 A JP13336379 A JP 13336379A JP S5657034 A JPS5657034 A JP S5657034A
Authority
JP
Japan
Prior art keywords
silver halide
thio
ether compound
photographic emulsion
thiourea
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
JP13336379A
Other languages
Japanese (ja)
Inventor
Masahiro Kato
Shoichiro Sumi
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.)
ORIENTAL SHASHIN KOGYO KK
Oriental Photo Industrial Co Ltd
Original Assignee
ORIENTAL SHASHIN KOGYO KK
Oriental Photo Industrial Co Ltd
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 ORIENTAL SHASHIN KOGYO KK, Oriental Photo Industrial Co Ltd filed Critical ORIENTAL SHASHIN KOGYO KK
Priority to JP13336379A priority Critical patent/JPS5657034A/en
Publication of JPS5657034A publication Critical patent/JPS5657034A/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
    • G03C1/015—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To obtain a photographic emulsion contg. coarse silver halide particles and with high sensitivity, low fogging level and high aging stability by forming silver halide particles in the presence of a specified tetra-substituted thiourea compound and an org. thio-ether compound. CONSTITUTION:An emulsion is manufactured in the presence of a tetrasubstituted thiourea compound represented by formula I and an org. thio-ether compound by adding the compounds simultaneously or separately in a thiourea: thio-ether compound=0.5:99.5-99.5:0.5 by 1X10<-6>-2mol per mol of silver halide in a process before finishing the physical ripening of silver halide. Thus, singly dispersed coarse silver halide particles are obtd., and a photosensitive material of low fog is obtd.
JP13336379A 1979-10-16 1979-10-16 Silver halide photographic emulsion Pending JPS5657034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13336379A JPS5657034A (en) 1979-10-16 1979-10-16 Silver halide photographic emulsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13336379A JPS5657034A (en) 1979-10-16 1979-10-16 Silver halide photographic emulsion

Publications (1)

Publication Number Publication Date
JPS5657034A true JPS5657034A (en) 1981-05-19

Family

ID=15102964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13336379A Pending JPS5657034A (en) 1979-10-16 1979-10-16 Silver halide photographic emulsion

Country Status (1)

Country Link
JP (1) JPS5657034A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63229449A (en) * 1987-02-25 1988-09-26 イーストマン　コダック　カンパニー Photographic silver halide emulsion
JPH01121847A (en) * 1987-11-05 1989-05-15 Fuji Photo Film Co Ltd Silver halide photographic emulsion

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5577737A (en) * 1978-12-07 1980-06-11 Fuji Photo Film Co Ltd Silver halide photographic emulsion

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5577737A (en) * 1978-12-07 1980-06-11 Fuji Photo Film Co Ltd Silver halide photographic emulsion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63229449A (en) * 1987-02-25 1988-09-26 イーストマン　コダック　カンパニー Photographic silver halide emulsion
JPH01121847A (en) * 1987-11-05 1989-05-15 Fuji Photo Film Co Ltd Silver halide photographic emulsion

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