GB1085638A - Light sensitive silver halide emulsions - Google Patents

Light sensitive silver halide emulsions

Info

Publication number
GB1085638A
GB1085638A GB49331/64A GB4933164A GB1085638A GB 1085638 A GB1085638 A GB 1085638A GB 49331/64 A GB49331/64 A GB 49331/64A GB 4933164 A GB4933164 A GB 4933164A GB 1085638 A GB1085638 A GB 1085638A
Authority
GB
United Kingdom
Prior art keywords
emulsion
silver halide
digestion step
halide emulsions
light 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.)
Expired
Application number
GB49331/64A
Inventor
Claude Guy Dostes
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1085638A publication Critical patent/GB1085638A/en
Expired 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
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • 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
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising

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)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1,085,638. Photographic silver halide emulsions. EASTMAN KODAK CO. Dec.4, 1964 [Dec.5, 1963], No.49331/64. Heading G2C. In the preparation of a photographic lightsensitive silver halide emulsion, a tetrazaindene salt and a gold, ruthenium, rhodium, palladium, platinum or indium salt are added to the emulsion after the cessation of heating in the main digestion step, and the emulsion is subjected to a subsidiary digestion step which may comprise the cooling down of the emulsion from the main digestion step or may comprise re-heating the emulsion to maintain it at a controlled temperature before cooling, for example at about 50‹C. for 1-10 minutes. The emulsion may have been optically sensitized and gold- and sulphur sensitized. The tetrazaindene salts are alkali-metal salts of hydroxy or carboxy substituted tetrazaindenes.
GB49331/64A 1963-12-05 1964-12-04 Light sensitive silver halide emulsions Expired GB1085638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR956168A FR1385606A (en) 1963-12-05 1963-12-05 New photographic emulsions with very low sensitivity to light from safety lamps

Publications (1)

Publication Number Publication Date
GB1085638A true GB1085638A (en) 1967-10-04

Family

ID=8818187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49331/64A Expired GB1085638A (en) 1963-12-05 1964-12-04 Light sensitive silver halide emulsions

Country Status (5)

Country Link
US (1) US3411914A (en)
BE (1) BE656175A (en)
DE (1) DE1242094B (en)
FR (1) FR1385606A (en)
GB (1) GB1085638A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097720A1 (en) * 1981-12-19 1984-01-11 Konica Corporation Process for preparing silver halide emulsion
EP0107488A2 (en) * 1982-10-22 1984-05-02 Konica Corporation Silver halide emulsions

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05127290A (en) * 1991-11-06 1993-05-25 Konica Corp Silver halide photographic emulsion and silver halide photographic sensitive material formed by using this emulsion
DE69329509T2 (en) 1992-03-19 2001-05-03 Fuji Photo Film Co Ltd Process for the preparation of a silver halide photographic emulsion
JP2777949B2 (en) 1992-04-03 1998-07-23 富士写真フイルム株式会社 Silver halide color photographic materials
FR2722009A1 (en) 1994-07-04 1996-01-05 Kodak Pathe PHOTOGRAFIC EMULSION WITH IMPROVED SENSITIVITY
US5792601A (en) 1995-10-31 1998-08-11 Eastman Kodak Company Composite silver halide grains and processes for their preparation
JPH09152696A (en) 1995-11-30 1997-06-10 Fuji Photo Film Co Ltd Silver halide color photographic sensitive material
US7241564B2 (en) 2004-08-02 2007-07-10 Fujifilm Corporation Silver halide holographic sensitive material and system for taking holographic images by using the same
EP1691237A3 (en) 2005-02-15 2006-10-18 Fuji Photo Film Co., Ltd. Holographic recording material and holographic recording method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE498287A (en) * 1949-09-24
BE530063A (en) * 1953-07-01
DE1151437B (en) * 1961-07-17 1963-07-11 Wolfen Filmfab Veb Process for increasing the sensitivity of photographic silver halide emulsions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097720A1 (en) * 1981-12-19 1984-01-11 Konica Corporation Process for preparing silver halide emulsion
EP0097720A4 (en) * 1981-12-19 1984-08-10 Konishiroku Photo Ind Process for preparing silver halide emulsion.
EP0107488A2 (en) * 1982-10-22 1984-05-02 Konica Corporation Silver halide emulsions
EP0107488A3 (en) * 1982-10-22 1984-06-27 Konica Corporation Silver halide emulsions

Also Published As

Publication number Publication date
DE1242094B (en) 1967-06-08
US3411914A (en) 1968-11-19
FR1385606A (en) 1965-01-15
BE656175A (en) 1965-03-16

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