GB635841A - Improvements in photographic silver halide emulsions - Google Patents

Improvements in photographic silver halide emulsions

Info

Publication number
GB635841A
GB635841A GB12934/47A GB1293447A GB635841A GB 635841 A GB635841 A GB 635841A GB 12934/47 A GB12934/47 A GB 12934/47A GB 1293447 A GB1293447 A GB 1293447A GB 635841 A GB635841 A GB 635841A
Authority
GB
United Kingdom
Prior art keywords
added
emulsion
aqueous
kbr
aqueous solution
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
GB12934/47A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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
Priority to BE482454D priority Critical patent/BE482454A/fr
Priority to NL69509D priority patent/NL69509C/xx
Application filed by Kodak Ltd filed Critical Kodak Ltd
Priority to ES0183680A priority patent/ES183680A1/en
Publication of GB635841A publication Critical patent/GB635841A/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
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

635,841. Photographic emulsions. KODAK, Ltd., DAVEY, E. P., and KNOTT, E. B. May 13, 1947, No. 12934. [Class 98 (ii)] A photographic silver halide emulsion is prepared by forming in the absence of ammonia and in one or more stages, silver salt grains consisting at least partly of a silver salt which is more soluble in water than is silver bromide, converting the whole of such grains to silver bromide or iodobromide, and if the silver iodide content of the emulsion is less than 6 per cent by weight calculated on the total silver halide, treating the grains with an iodine compound to bring the silver iodide content up to at least 6 per cent by weight, with ripening (preferably in the absence of ammonia) or without ripening, and then either washing out some of the watersoluble salts or washing out the whole of the water-soluble salts followed by addition of water-soluble salts such as water-soluble chloride or bromide. The silver salt grains may be formed in a colloid binder containing little or no sulphur sensitizers, e.g. inert gelatin, cellulose esters or ethers, and resins (e.g. polyvinyl acetate). The pH of the emulsion may be between 4.5 and 7.0. The iodide content of the final emulsion may be 10 per cent, 20 per cent, or more. The emulsions, after exposure, may be developed in an " internal " developer. In example 1, aqueous solutions of KCl and AgNO 3 are simultaneously run into an aqueous solution of inert gelatin and KCI, an aqueous solution of KBr and KI is added, the emulsion is ripened for 20 minutes at 45‹ C., inert gelatin is added, and the emulsion is again ripened, set, shredded, washed free of all soluble salts, and, after addition of aqueous KCI, diluted. Example 2 is similar, except that after the simultaneous addition of the KCI and AgN0 3 solutions, an aqueous solution of KBr is added followed by ripening, an aqueous solution of KBr and KI is added followed by ripening, and an aqueous solution of KBr is added followed by ripening. In example 3, aqueous AgNO 3 is slowly added to aqueous inert gelatin, solutionsof KCNS and AgN0 3 are simultaneously added, and a solution of KBr and KI is added. Inert gelatine is added, the emulsion set, shredded washed, and melted, and inert gelatine and aqueous KBr are added. In example 4, aqueous solutions of sodium carbonate and AgN0 3 are simultaneously added to an aqueous solution of inert gelatin, and the remaining procedure is similar to example 3. Specifications 581,772, 581,773 and 581,789 are referred to.
GB12934/47A 1947-05-13 1947-05-13 Improvements in photographic silver halide emulsions Expired GB635841A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE482454D BE482454A (en) 1947-05-13
NL69509D NL69509C (en) 1947-05-13
ES0183680A ES183680A1 (en) 1947-05-13 1948-05-12 A METHOD OF MAKING A SENSITIVE PHOTOGRAPHIC EMULSION OF SILVER HALIDE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB284107X 1947-05-13

Publications (1)

Publication Number Publication Date
GB635841A true GB635841A (en) 1950-04-19

Family

ID=10275184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12934/47A Expired GB635841A (en) 1947-05-13 1947-05-13 Improvements in photographic silver halide emulsions

Country Status (5)

Country Link
US (1) US2592250A (en)
CH (1) CH284107A (en)
DE (1) DE851716C (en)
FR (1) FR966221A (en)
GB (1) GB635841A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409436A (en) * 1965-04-01 1968-11-05 Gaf Corp Light-sensitive silver halide print-out emulsions
EP0107302A2 (en) * 1982-09-08 1984-05-02 Konica Corporation Silver halide emulsions and process for preparing the same
EP0124795A2 (en) 1983-04-11 1984-11-14 Fuji Photo Film Co., Ltd. Silver halide photographic emulsion
EP1750173A1 (en) 2005-08-04 2007-02-07 Fuji Photo Film Co., Ltd. Silver halide photosensitive material and packaged body containing the same
WO2012035314A1 (en) 2010-09-17 2012-03-22 Fujifilm Manufacturing Europe Bv Photographic paper
WO2021213762A1 (en) 2020-04-24 2021-10-28 Fujifilm Manufacturing Europe Bv Photographic paper

Families Citing this family (68)

* Cited by examiner, † Cited by third party
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US3000739A (en) * 1957-04-02 1961-09-19 Du Pont Process for preparing silver halide emulsions
US3031304A (en) * 1958-08-20 1962-04-24 Albert J Oliver Fine grain nuclear emulsion
US3237008A (en) * 1961-01-19 1966-02-22 Eastman Kodak Co Roomlight handling radiographic element including an x-ray sensitive layer overcoated with a dye desensitized silver halide emulsion
JPS5129012B1 (en) * 1962-09-01 1976-08-23
US3542772A (en) * 1966-03-11 1970-11-24 Eastman Kodak Co Cyanine dyes containing a 1-heterocyclic substituted 4-pyrazolyl nucleus
US3510348A (en) * 1966-03-11 1970-05-05 Eastman Kodak Co Direct positive recording film
US3622318A (en) * 1970-03-20 1971-11-23 Eastman Kodak Co Photographic materials and processes
US3837857A (en) * 1970-05-14 1974-09-24 Eastman Kodak Co Photographic materials curve shape stabilized with carboxy substituted 4-thiouracils
US3979213A (en) * 1972-06-19 1976-09-07 Gilman Jr Paul B Spectrally sensitized silver halide emulsion containing an internal metal dopant
US3917485A (en) * 1973-01-18 1975-11-04 Eastman Kodak Co Method of making photographic silver halide emulsions and products thereof
DE2306447C2 (en) * 1973-02-09 1986-10-02 Agfa-Gevaert Ag, 5090 Leverkusen Photographic recording material
DE2308239C2 (en) * 1973-02-20 1984-09-13 Agfa-Gevaert Ag, 5090 Leverkusen Direct positive photographic recording material
DE2332802C2 (en) * 1973-06-28 1984-09-20 Agfa-Gevaert Ag, 5090 Leverkusen Direct positive photographic recording material
US3894871A (en) * 1973-07-27 1975-07-15 Polaroid Corp Photographic products and processes for forming silver and additive color transparencies
US3976486A (en) * 1973-07-27 1976-08-24 Polaroid Corporation Diffusion transfer color products and processes with substituted halide silver halide emulsions
US4165986A (en) * 1973-07-27 1979-08-28 Polaroid Corporation Substituted-halide silver halide emulsions and products containing same
US4070190A (en) * 1973-09-03 1978-01-24 E. I. Du Pont De Nemours And Company Process for producing photographic silver halide emulsions having a core/shell structure
US3990895A (en) * 1974-04-23 1976-11-09 Polaroid Corporation Silver halide, color screen elements and their use in forming negative color images and diffusion transfer positive silver images
IT1018702B (en) * 1974-06-26 1977-10-20 Minnesota Mining & Mfg PHOTOGRAPHIC COPULANTS PIVALILACETA NILIDIC PHOTOGRAPHIC ELEMENTS THAT INCLUDE SUCH COPULANTS E.O THE COLORS FORMED FOR THE CHROME GENO DEVELOPMENT OF SAID COPULANTS AND METHOD FOR FORMING A PHOTOGRAPHIC IMAGE CA WITH DYES IN THE PRESENCE OF DETECT COOLANTS
DE2534011A1 (en) * 1975-07-30 1977-02-17 Agfa Gevaert Ag PROCESS FOR PRODUCING SILVER HALOGENIDE EMULSIONS
US4030920A (en) * 1976-04-12 1977-06-21 Eastman Kodak Company Processing compositions containing glycols for color transfer processes comprising direct positive silver halide developement
GB1520976A (en) * 1976-06-10 1978-08-09 Ciba Geigy Ag Photographic emulsions
US4184877A (en) * 1976-06-10 1980-01-22 Ciba-Geigy Ag Process for the manufacture of photographic silver halide emulsions containing silver halide crystals of the twinned type
US4184878A (en) * 1976-06-10 1980-01-22 Ciba-Geigy Aktiengesellschaft Process for the manufacture of photographic silver halide emulsions containing silver halide crystals of the twinned type
JPS537233A (en) * 1976-07-08 1978-01-23 Mitsubishi Paper Mills Ltd Multicolor photographic material having improved blue sensitive layer
US4142900A (en) * 1977-02-18 1979-03-06 Eastman Kodak Company Converted-halide photographic emulsions and elements having composite silver halide crystals
DE2828112A1 (en) * 1978-06-27 1980-01-10 Agfa Gevaert Ag LIGHT SENSITIVE PHOTOGRAPHIC MATERIAL
JPS5565945A (en) * 1978-11-14 1980-05-17 Konishiroku Photo Ind Co Ltd Direct positive silver halide photographic material
JPS6055820B2 (en) * 1979-03-26 1985-12-06 コニカ株式会社 Direct positive silver halide photographic material
JPS5945132B2 (en) * 1979-04-23 1984-11-05 富士写真フイルム株式会社 Method for producing photosensitive silver halide crystals
DE2932650C2 (en) * 1979-08-11 1982-03-11 Du Pont de Nemours (Deutschland) GmbH, 4000 Düsseldorf Process for the preparation of a monodisperse silver halide photographic emulsion
US4335199A (en) * 1980-02-19 1982-06-15 E. I. Du Pont De Nemours And Company High contrast by imagewise iodide infection in a mixed silver halide system
USRE32097E (en) * 1981-11-12 1986-03-25 Eastman Kodak Company Blended grain direct-positive emulsions and photographic elements and processes for their use
US4444865A (en) * 1981-11-12 1984-04-24 Eastman Kodak Company Blended grain direct-positive emulsions and photographic elements and processes for their use
USRE32149E (en) * 1982-09-15 1986-05-20 Eastman Kodak Company Photographic elements containing direct-positive emulsions and processes for their use
US4444874A (en) * 1982-09-15 1984-04-24 Eastman Kodak Company Photographic elements containing direct-positive emulsions and processes for their use
US4504570A (en) * 1982-09-30 1985-03-12 Eastman Kodak Company Direct reversal emulsions and photographic elements useful in image transfer film units
US4459351A (en) * 1983-06-22 1984-07-10 Eastman Kodak Company Photographic element and process employed combination of surface and internal latent image silver halide
EP0143424B1 (en) 1983-11-25 1990-06-27 Fuji Photo Film Co., Ltd. Heat-developable light-sensitive materials
US4710631A (en) * 1984-08-28 1987-12-01 Fuji Photo Film Co., Ltd. Temperature compensation for a semiconductor light source used for exposure of light sensitive material
US4775613A (en) 1985-03-30 1988-10-04 Fuji Photo Film Co., Ltd. Heat-developable light-sensitive material
US4661438A (en) 1985-04-04 1987-04-28 Eastman Kodak Company Quaternized tellurium salt fog inhibiting agents for silver halide photography
JPS61245151A (en) 1985-04-23 1986-10-31 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS61250645A (en) * 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
JPS61250636A (en) 1985-04-30 1986-11-07 Fuji Photo Film Co Ltd Heat developable photosensitive material
JPS61250643A (en) 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd Silver halide photographic sensitive material
CA1303412C (en) 1985-05-31 1992-06-16 Shigeharu Koboshi Method for forming direct positive color image
EP0209118B1 (en) 1985-07-17 1991-10-23 Konica Corporation Silver halide photographic material
JPH083621B2 (en) 1985-07-31 1996-01-17 富士写真フイルム株式会社 Image forming method
EP0224214B1 (en) 1985-11-21 1993-01-27 Fuji Photo Film Co., Ltd. Light-sensitive microcapsule containing polymerizable compound and silver halide, and light-sensitive material employing the same
EP0241107A3 (en) * 1986-01-24 1988-10-05 Konishiroku Photo Industry Co. Ltd. Silver halide photograhic material that is resistant to fogging during storage
JPS63239439A (en) * 1986-11-25 1988-10-05 Konica Corp Direct positive silver halide photographic sensitive material
JPH0738068B2 (en) * 1986-12-26 1995-04-26 富士写真フイルム株式会社 Photographic material and method for developing the same
JPH0690437B2 (en) 1987-12-02 1994-11-14 富士写真フイルム株式会社 Direct positive photographic material
JPH0652386B2 (en) * 1988-03-22 1994-07-06 富士写真フイルム株式会社 Direct positive color image forming method
DE69131785T2 (en) 1990-08-20 2000-05-11 Fuji Photo Film Co Ltd Data-preserving photographic film product and method for producing a color image
JP3041736B2 (en) * 1991-11-01 2000-05-15 コニカ株式会社 Silver halide photographic material
JPH05165139A (en) * 1991-12-17 1993-06-29 Konica Corp Dye image forming method
JP3146387B2 (en) * 1992-10-15 2001-03-12 コニカ株式会社 Silver halide photographic materials for laser light sources
JPH06175257A (en) * 1992-12-10 1994-06-24 Konica Corp Silver halide photographic sensitive material
DE69422773D1 (en) * 1993-08-31 2000-03-02 Konishiroku Photo Ind Silver halide photographic light-sensitive material
JPH0815827A (en) 1994-06-28 1996-01-19 Konica Corp Combination of silver halide photographic sensitive material and radiation-sensitized screen
JPH0887097A (en) * 1994-09-16 1996-04-02 Konica Corp Picture forming method
EP0754967A1 (en) 1995-07-14 1997-01-22 Agfa-Gevaert N.V. Photographic direct positive material containing a particular stabilizer
US5789139A (en) 1995-12-27 1998-08-04 Fuji Photo Film Co., Ltd. Hydrazide compound and silver halide photographic photosensitive material comprising the same
DE69605174T2 (en) 1995-12-27 2000-04-20 Fuji Photo Film Co Ltd Silver halide photographic light-sensitive material
DE69615036T2 (en) 1996-11-13 2002-04-18 Eastman Kodak Co Process for the preparation of a silver halide emulsion
US10217888B2 (en) 2016-10-06 2019-02-26 International Business Machines Corporation Solution-phase inclusion of silver into chalcogenide semiconductor inks

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
US2401051A (en) * 1939-09-26 1946-05-28 Photo Positive Corp Photographic emulsions and methods

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409436A (en) * 1965-04-01 1968-11-05 Gaf Corp Light-sensitive silver halide print-out emulsions
EP0107302A2 (en) * 1982-09-08 1984-05-02 Konica Corporation Silver halide emulsions and process for preparing the same
EP0107302A3 (en) * 1982-09-08 1984-10-03 Konishiroku Photo Industry Co. Ltd. Silver halide emulsions and process for preparing the same
EP0124795A2 (en) 1983-04-11 1984-11-14 Fuji Photo Film Co., Ltd. Silver halide photographic emulsion
EP1750173A1 (en) 2005-08-04 2007-02-07 Fuji Photo Film Co., Ltd. Silver halide photosensitive material and packaged body containing the same
WO2012035314A1 (en) 2010-09-17 2012-03-22 Fujifilm Manufacturing Europe Bv Photographic paper
WO2021213762A1 (en) 2020-04-24 2021-10-28 Fujifilm Manufacturing Europe Bv Photographic paper

Also Published As

Publication number Publication date
FR966221A (en) 1950-10-04
CH284107A (en) 1952-07-15
US2592250A (en) 1952-04-08
DE851716C (en) 1952-10-06

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