JPS6463950A - Direct positive silver halide photographic sensitive material with little fog and good sharpness - Google Patents

Direct positive silver halide photographic sensitive material with little fog and good sharpness

Info

Publication number
JPS6463950A
JPS6463950A JP22105387A JP22105387A JPS6463950A JP S6463950 A JPS6463950 A JP S6463950A JP 22105387 A JP22105387 A JP 22105387A JP 22105387 A JP22105387 A JP 22105387A JP S6463950 A JPS6463950 A JP S6463950A
Authority
JP
Japan
Prior art keywords
layer
nonphotosensitive
yellow filter
silver halide
sensitive material
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
JP22105387A
Other languages
Japanese (ja)
Inventor
Tomomi Yoshizawa
Keiji Ogi
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 JP22105387A priority Critical patent/JPS6463950A/en
Publication of JPS6463950A publication Critical patent/JPS6463950A/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
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • 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
    • G03C1/485—Direct positive 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/047—Proteins, e.g. gelatine derivatives; Hydrolysis or extraction products of proteins
    • G03C2001/0471—Isoelectric point of gelatine

Landscapes

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

Abstract

PURPOSE:To thin the photographic constituting layer without rising fog by constituting the binder contd. in a nonphotosensitive layer of a gelatin, and by incorporating a specified yellow filter dyestuff in the nonphotosensitive layer. CONSTITUTION:In the titled materials, the binder contd. in the nonphotosensitive layer is composed of the gelatin having an isoelectric point of >=5.5, and the nonphotosensitive layer contains the yellow filter dyestuff which can decolor by processing. Namely, as the nonphotosensitive layer which fulfills the function of a yellow filter layer is composed of the gelatin having the isoelectric point of >=5.5 and contains the yellow filter dyestuff, the fog in the emulsion layer does not rise differing from the case of using a colloidal silver, whereby the nonphotosensitive layer is not necessary to separate from the emulsion layer by an intermediate layer. Thus as the intermediate layer is needless, the photographic constituting layer can reduce the thickness by that of the intermediate layer, thereby improving the sharpness of the titled material.
JP22105387A 1987-09-03 1987-09-03 Direct positive silver halide photographic sensitive material with little fog and good sharpness Pending JPS6463950A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22105387A JPS6463950A (en) 1987-09-03 1987-09-03 Direct positive silver halide photographic sensitive material with little fog and good sharpness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22105387A JPS6463950A (en) 1987-09-03 1987-09-03 Direct positive silver halide photographic sensitive material with little fog and good sharpness

Publications (1)

Publication Number Publication Date
JPS6463950A true JPS6463950A (en) 1989-03-09

Family

ID=16760757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22105387A Pending JPS6463950A (en) 1987-09-03 1987-09-03 Direct positive silver halide photographic sensitive material with little fog and good sharpness

Country Status (1)

Country Link
JP (1) JPS6463950A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0311340A (en) * 1989-06-08 1991-01-18 Fuji Photo Film Co Ltd Direct positive color photographic sensitive material
JPH03131844A (en) * 1989-10-17 1991-06-05 Fuji Photo Film Co Ltd Direct positive image forming method
JPH03189643A (en) * 1989-12-19 1991-08-19 Fuji Photo Film Co Ltd Direct positive type silver halide color photographic sensitive material and formation of color proof by using this material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0311340A (en) * 1989-06-08 1991-01-18 Fuji Photo Film Co Ltd Direct positive color photographic sensitive material
JPH03131844A (en) * 1989-10-17 1991-06-05 Fuji Photo Film Co Ltd Direct positive image forming method
JPH03189643A (en) * 1989-12-19 1991-08-19 Fuji Photo Film Co Ltd Direct positive type silver halide color photographic sensitive material and formation of color proof by using this material

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