GB667206A - Improvements in photographic processes and materials therefor - Google Patents

Improvements in photographic processes and materials therefor

Info

Publication number
GB667206A
GB667206A GB17049/49A GB1704949A GB667206A GB 667206 A GB667206 A GB 667206A GB 17049/49 A GB17049/49 A GB 17049/49A GB 1704949 A GB1704949 A GB 1704949A GB 667206 A GB667206 A GB 667206A
Authority
GB
United Kingdom
Prior art keywords
prepared
nitrostyryl
toluenesulphonate
metho
quinoline
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
GB17049/49A
Other languages
English (en)
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
Application filed by Kodak Ltd filed Critical Kodak Ltd
Publication of GB667206A publication Critical patent/GB667206A/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
    • G03C1/485—Direct positive emulsions
    • G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect
    • 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
    • G03C1/36—Desensitisers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
GB17049/49A 1948-06-29 1949-06-28 Improvements in photographic processes and materials therefor Expired GB667206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35987A US2541472A (en) 1948-06-29 1948-06-29 Direct positive emulsion containing desensitizing dye

Publications (1)

Publication Number Publication Date
GB667206A true GB667206A (en) 1952-02-27

Family

ID=21885938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17049/49A Expired GB667206A (en) 1948-06-29 1949-06-28 Improvements in photographic processes and materials therefor

Country Status (4)

Country Link
US (1) US2541472A (ja)
BE (1) BE489729A (ja)
FR (1) FR989400A (ja)
GB (1) GB667206A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865749A (en) * 1956-11-06 1958-12-23 Eastman Kodak Co Stabilized photographic emulsions

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614927A (en) * 1949-06-01 1952-10-21 Eastman Kodak Co Rapid processing of photographic materials
DE977335C (de) * 1953-03-16 1965-12-16 Agfa Ag Verfahren zur Verminderung der Blauempfindlichkeit von photographischen Halogensilberemulsionen
US2774668A (en) * 1953-05-28 1956-12-18 Polaroid Corp Process and product for forming color images from complete dyes
NL110449C (ja) * 1957-08-19
US3023102A (en) * 1957-09-24 1962-02-27 Gen Aniline & Film Corp Direct positive photographic emulsion
NL109152C (ja) * 1957-10-04
US2947629A (en) * 1958-09-17 1960-08-02 Eastman Kodak Co Nitrosopyrimidine desensitizing compounds and photographic emulsions containing them
US3062651A (en) * 1959-01-21 1962-11-06 Eastman Kodak Co Unhardened, fogged emulsions and method of processing to positive images
GB950486A (en) * 1959-05-13 1964-02-26 Kodak Ltd Heat-treated photographic emulsions and their use
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
US3295969A (en) * 1961-04-12 1967-01-03 Eastman Kodak Co Photographic spirit duplicating process
US3284203A (en) * 1961-05-02 1966-11-08 Fuji Photo Film Co Ltd Direct positive photographic materials
US3189456A (en) * 1961-06-19 1965-06-15 Du Pont Radiation-sensitive emulsions and elements and their preparation
US3278307A (en) * 1961-11-21 1966-10-11 Eastman Kodak Co Photographic process for producing prints stabilized against print-out
GB1054284A (ja) * 1963-02-14
GB1012860A (en) * 1963-08-28 1965-12-08 Ilford Ltd Photographic materials and processes
US3367779A (en) * 1965-01-21 1968-02-06 Fuji Photo Film Co Ltd Direct positive silver halide photographic materials
DE1935311C3 (de) * 1968-07-15 1974-05-22 Fuji Photo Film Co. Ltd., Ashigara, Kanagawa (Japan) Photographische direktpositive Silberhalogenidemul sion
US3988154A (en) * 1974-02-19 1976-10-26 Eastman Kodak Company Photographic supports and elements utilizing photobleachable omicron-nitroarylidene dyes
US3988156A (en) * 1974-02-19 1976-10-26 Eastman Kodak Company Photographic supports and elements utilizing photobleachable o-nitroarylidene dyes
US4308379A (en) * 1980-05-15 1981-12-29 Minnesota Mining And Manufacturing Company Acutance agents for use in thermally developable photosensitive compositions
US4271263A (en) * 1980-05-15 1981-06-02 Minnesota Mining And Manufacturing Company Thermally developable photosensitive compositions containing acutance agents
US4404277A (en) * 1981-08-21 1983-09-13 Minnesota Mining And Manufacturing Company Desensitizing dyes for photographic emulsions
EP0754967A1 (en) 1995-07-14 1997-01-22 Agfa-Gevaert N.V. Photographic direct positive material containing a particular stabilizer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE390036A (ja) * 1928-01-31
US2271229A (en) * 1939-11-10 1942-01-27 Eastman Kodak Co Fog inhibitor for photographic developers
US2324123A (en) * 1941-07-08 1943-07-13 Eastman Kodak Co Fog inhibitor for photographic developers
US2384593A (en) * 1943-08-06 1945-09-11 Eastman Kodak Co Antifoggant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865749A (en) * 1956-11-06 1958-12-23 Eastman Kodak Co Stabilized photographic emulsions

Also Published As

Publication number Publication date
FR989400A (fr) 1951-09-07
BE489729A (ja)
US2541472A (en) 1951-02-13

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