GB967624A - Improvements in or relating to the preparation of photographic silver halide emulsions - Google Patents

Improvements in or relating to the preparation of photographic silver halide emulsions

Info

Publication number
GB967624A
GB967624A GB3250460A GB3250460A GB967624A GB 967624 A GB967624 A GB 967624A GB 3250460 A GB3250460 A GB 3250460A GB 3250460 A GB3250460 A GB 3250460A GB 967624 A GB967624 A GB 967624A
Authority
GB
United Kingdom
Prior art keywords
silver halide
relating
preparation
halide emulsions
photographic silver
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
GB3250460A
Inventor
Rene Maurice Hart
Marcel Nicholas Vrancken
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Priority to GB3250460A priority Critical patent/GB967624A/en
Priority to FR873688A priority patent/FR1301198A/en
Priority to DEG33168A priority patent/DE1147117B/en
Publication of GB967624A publication Critical patent/GB967624A/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
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/053—Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

967,624. Photographic emulsions. GEVAERT PHOTO-PRODUCTEN N.V. Sept. 21, 1960, No.32504/60. Heading G2C. A photographic gelatino-silver halide aqueous dispersion is precipitated by adding an aqueous solution of a polyvinyl sulphonic acid or salt thereof and lowering the pH. The supernatant liquid is decanted off, and the precipitate is washed and redispersed in water at 30-45‹C. with the addition of alkali. Additional gelatin may then-be added if desired. Specifications 649,545, 649,546, 861,984 and 932, 620 are referred to.
GB3250460A 1960-09-21 1960-09-21 Improvements in or relating to the preparation of photographic silver halide emulsions Expired GB967624A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3250460A GB967624A (en) 1960-09-21 1960-09-21 Improvements in or relating to the preparation of photographic silver halide emulsions
FR873688A FR1301198A (en) 1960-09-21 1961-09-20 Process for the preparation of photographic emulsions
DEG33168A DE1147117B (en) 1960-09-21 1961-09-20 Process for the preparation of photographic emulsions by the flocculation process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3250460A GB967624A (en) 1960-09-21 1960-09-21 Improvements in or relating to the preparation of photographic silver halide emulsions

Publications (1)

Publication Number Publication Date
GB967624A true GB967624A (en) 1964-08-26

Family

ID=10339609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3250460A Expired GB967624A (en) 1960-09-21 1960-09-21 Improvements in or relating to the preparation of photographic silver halide emulsions

Country Status (2)

Country Link
DE (1) DE1147117B (en)
GB (1) GB967624A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482980A (en) * 1965-01-12 1969-12-09 Fuji Photo Film Co Ltd Process for the production of photographic gelatino silver halide emulsions
US5994049A (en) * 1997-08-28 1999-11-30 Eastman Kodak Company Water-soluble non-interactive polymers and surfactant micelles for desalting and concentrating silver halide photographic emulsions
US6004740A (en) * 1997-08-28 1999-12-21 Eastman Kodak Company Water-soluble non-interactive carboxyl polymers for desalting and concentrating silver halide photographic emulsions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE528741A (en) * 1953-05-11
BE583637A (en) * 1958-10-16

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482980A (en) * 1965-01-12 1969-12-09 Fuji Photo Film Co Ltd Process for the production of photographic gelatino silver halide emulsions
US5994049A (en) * 1997-08-28 1999-11-30 Eastman Kodak Company Water-soluble non-interactive polymers and surfactant micelles for desalting and concentrating silver halide photographic emulsions
US6004740A (en) * 1997-08-28 1999-12-21 Eastman Kodak Company Water-soluble non-interactive carboxyl polymers for desalting and concentrating silver halide photographic emulsions

Also Published As

Publication number Publication date
DE1147117B (en) 1963-04-11

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