JPS6486134A - Silver halide photographic sensitive material providing high contrast picture image - Google Patents

Silver halide photographic sensitive material providing high contrast picture image

Info

Publication number
JPS6486134A
JPS6486134A JP17042687A JP17042687A JPS6486134A JP S6486134 A JPS6486134 A JP S6486134A JP 17042687 A JP17042687 A JP 17042687A JP 17042687 A JP17042687 A JP 17042687A JP S6486134 A JPS6486134 A JP S6486134A
Authority
JP
Japan
Prior art keywords
silver halide
picture image
sensitive material
high contrast
photographic sensitive
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
JP17042687A
Other languages
Japanese (ja)
Other versions
JPH0782220B2 (en
Inventor
Takeshi Haniyu
Hidetoshi Yorozudo
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 JP62170426A priority Critical patent/JPH0782220B2/en
Publication of JPS6486134A publication Critical patent/JPS6486134A/en
Publication of JPH0782220B2 publication Critical patent/JPH0782220B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G03C1/061—Hydrazine compounds

Landscapes

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

Abstract

PURPOSE:To maintain high contrast, to inhibit fog in a dot picture image, and to improve the contrast of a silver halide photographic sensitive material by forming at least one silver halide emulsion layer and incorporating a specified compd. thereinto. CONSTITUTION:A compd. expressed by formula I is incorporated into at least one silver halide emulsion layer of a silver halide photographic sensitive material. In formula I, each R1 and R2 is an aryl or heterocyclic group; R is an org. joint group; n is 0-6; m is 0 or 1; when n is >=2, each R may be same or different to each other. Preferred R1 and R2 are aryl group. Preferred R is an alkylene group. By this constitution, high contrast of a photographic picture image is maintained, and fog in a dot picture image is inhibited, and the contrast is improved.
JP62170426A 1987-05-20 1987-07-08 Silver halide photographic light-sensitive material capable of obtaining high-contrast images Expired - Fee Related JPH0782220B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62170426A JPH0782220B2 (en) 1987-05-20 1987-07-08 Silver halide photographic light-sensitive material capable of obtaining high-contrast images

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP62-123448 1987-05-20
JP12344887 1987-05-20
JP62170426A JPH0782220B2 (en) 1987-05-20 1987-07-08 Silver halide photographic light-sensitive material capable of obtaining high-contrast images

Publications (2)

Publication Number Publication Date
JPS6486134A true JPS6486134A (en) 1989-03-30
JPH0782220B2 JPH0782220B2 (en) 1995-09-06

Family

ID=26460381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62170426A Expired - Fee Related JPH0782220B2 (en) 1987-05-20 1987-07-08 Silver halide photographic light-sensitive material capable of obtaining high-contrast images

Country Status (1)

Country Link
JP (1) JPH0782220B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02267417A (en) * 1989-04-05 1990-11-01 Rinnai Corp Burning control device
EP0782041A2 (en) 1995-12-27 1997-07-02 Fuji Photo Film Co., Ltd. Silver halide photographic light-sensitive material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562443A (en) * 1978-11-02 1980-05-10 Konishiroku Photo Ind Co Ltd Direct positive image formation method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5562443A (en) * 1978-11-02 1980-05-10 Konishiroku Photo Ind Co Ltd Direct positive image formation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02267417A (en) * 1989-04-05 1990-11-01 Rinnai Corp Burning control device
EP0782041A2 (en) 1995-12-27 1997-07-02 Fuji Photo Film Co., Ltd. Silver halide photographic light-sensitive material
US5770344A (en) * 1995-12-27 1998-06-23 Fuji Photo Film Co., Ltd. Silver halide photographic light-sensitive material

Also Published As

Publication number Publication date
JPH0782220B2 (en) 1995-09-06

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees