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GB1413748A - Method of making a photographic silver halide emulsion - Google Patents

Method of making a photographic silver halide emulsion

Info

Publication number
GB1413748A
GB1413748A GB751673A GB751673A GB1413748A GB 1413748 A GB1413748 A GB 1413748A GB 751673 A GB751673 A GB 751673A GB 751673 A GB751673 A GB 751673A GB 1413748 A GB1413748 A GB 1413748A
Authority
GB
United Kingdom
Prior art keywords
emulsions
silver halide
making
photographic
feb
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
GB751673A
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 GB1413748A publication Critical patent/GB1413748A/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
    • G03C1/015—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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/035—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein characterised by the crystal form or composition, e.g. mixed grain
    • G03C2001/0357—Monodisperse emulsion

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1413748 Photographic emulsions EASTMAN KODAK CO 15 Feb 1973 [21 Feb 1972] 7516/73 Heading G2C Photographic silver halide emulsions are made by forming silver halide grains in an ammoniacal medium at pH above 8.5 by a two stage procedure comprising (1) reacting 0.001-0.05M aqueous solutions of a silver salt and an alkali-metal halide in the presence of a hydrophilic colloid, and then (2) reacting further 0.05-3.0M aqueous solutions of a silver salt and an alkali-metal halide in the same reaction medium. The silver halide grains formed have a regular structure and a narrow size distribution. The emulsions may be fogged to produce direct-positive emulsions, or be sensitized in the usual way. Batches of emulsions may be mixed.
GB751673A 1972-02-21 1973-02-15 Method of making a photographic silver halide emulsion Expired GB1413748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7205686A FR2172751A1 (en) 1972-02-21 1972-02-21

Publications (1)

Publication Number Publication Date
GB1413748A true GB1413748A (en) 1975-11-12

Family

ID=9093807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB751673A Expired GB1413748A (en) 1972-02-21 1973-02-15 Method of making a photographic silver halide emulsion

Country Status (3)

Country Link
BE (1) BE795745A (en)
FR (1) FR2172751A1 (en)
GB (1) GB1413748A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177071A (en) 1976-10-07 1979-12-04 Agfa-Gevaert, N.V. Rapidly processable radiographic materials
EP0219113A2 (en) 1985-10-15 1987-04-22 Fuji Photo Film Co., Ltd. Method of processing silver halide color photographic material
EP0313083A2 (en) 1987-10-22 1989-04-26 Fuji Photo Film Co., Ltd. Silver halide color photographic material
EP0320939A2 (en) 1987-12-15 1989-06-21 Fuji Photo Film Co., Ltd. Silver halide color photographic material
EP0435334A2 (en) 1989-12-29 1991-07-03 Fuji Photo Film Co., Ltd. Silver halide color photographic material containing yellow colored cyan coupler
EP0452886A2 (en) 1990-04-17 1991-10-23 Fuji Photo Film Co., Ltd. Method of processing a silver halide color photographic material
EP0476327A1 (en) 1990-08-20 1992-03-25 Fuji Photo Film Co., Ltd. Data-retainable photographic film product and process for producing color print
EP0563985A1 (en) 1992-04-03 1993-10-06 Fuji Photo Film Co., Ltd. Silver halide color photographic material
EP0607905A2 (en) 1993-01-18 1994-07-27 Fuji Photo Film Co., Ltd. Silver halide photographic material
EP0690342A1 (en) 1994-06-28 1996-01-03 Konica Corporation Composite of a silver halide photographic light-sensitive material and a radiographic intensifying screen
EP0720049A2 (en) 1990-05-09 1996-07-03 Fuji Photo Film Co., Ltd. Photographic processing composition and processing method using the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2951670C2 (en) * 1978-12-26 1986-09-18 E.I. Du Pont De Nemours And Co., Wilmington, Del. Photographic silver halide gelatin emulsion, and its preparation and use
JPS5849938A (en) * 1981-08-07 1983-03-24 Konishiroku Photo Ind Co Ltd Manufacture of photographic silver halide emulsion
JPS5952238A (en) * 1982-09-09 1984-03-26 Konishiroku Photo Ind Co Ltd Preparation of silver halide emulsion
JPS60254032A (en) * 1983-12-29 1985-12-14 Fuji Photo Film Co Ltd Photosensitive silver halide emulsion
FR2676554A1 (en) * 1991-05-14 1992-11-20 Kodak Pathe PROCESS FOR OBTAINING SINGLE-DISPERSED TABULAR GRAINS.

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177071A (en) 1976-10-07 1979-12-04 Agfa-Gevaert, N.V. Rapidly processable radiographic materials
EP0219113A2 (en) 1985-10-15 1987-04-22 Fuji Photo Film Co., Ltd. Method of processing silver halide color photographic material
EP0313083A2 (en) 1987-10-22 1989-04-26 Fuji Photo Film Co., Ltd. Silver halide color photographic material
EP0320939A2 (en) 1987-12-15 1989-06-21 Fuji Photo Film Co., Ltd. Silver halide color photographic material
EP0435334A2 (en) 1989-12-29 1991-07-03 Fuji Photo Film Co., Ltd. Silver halide color photographic material containing yellow colored cyan coupler
EP0452886A2 (en) 1990-04-17 1991-10-23 Fuji Photo Film Co., Ltd. Method of processing a silver halide color photographic material
EP0720049A2 (en) 1990-05-09 1996-07-03 Fuji Photo Film Co., Ltd. Photographic processing composition and processing method using the same
EP0476327A1 (en) 1990-08-20 1992-03-25 Fuji Photo Film Co., Ltd. Data-retainable photographic film product and process for producing color print
EP0563985A1 (en) 1992-04-03 1993-10-06 Fuji Photo Film Co., Ltd. Silver halide color photographic material
EP0607905A2 (en) 1993-01-18 1994-07-27 Fuji Photo Film Co., Ltd. Silver halide photographic material
EP0690342A1 (en) 1994-06-28 1996-01-03 Konica Corporation Composite of a silver halide photographic light-sensitive material and a radiographic intensifying screen

Also Published As

Publication number Publication date
FR2172751A1 (en) 1973-10-05
BE795745A (en) 1973-08-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee