CH348872A - Process for sensitizing halide silver emulsions - Google Patents

Process for sensitizing halide silver emulsions

Info

Publication number
CH348872A
CH348872A CH348872DA CH348872A CH 348872 A CH348872 A CH 348872A CH 348872D A CH348872D A CH 348872DA CH 348872 A CH348872 A CH 348872A
Authority
CH
Switzerland
Prior art keywords
halide silver
silver emulsions
sensitizing
sensitizing halide
emulsions
Prior art date
Application number
Other languages
German (de)
Inventor
Oskar Dr Riester
Original Assignee
Agfa Ag
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 Agfa Ag filed Critical Agfa Ag
Publication of CH348872A publication Critical patent/CH348872A/en

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
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/10—Organic substances
    • G03C1/12—Methine and polymethine dyes
    • G03C1/22—Methine and polymethine dyes with an even number of CH groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/10—The polymethine chain containing an even number of >CH- groups
    • C09B23/102—The polymethine chain containing an even number of >CH- groups two heterocyclic rings linked carbon-to-carbon
    • 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
    • G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
CH348872D 1955-05-25 1956-04-17 Process for sensitizing halide silver emulsions CH348872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA22746A DE1009020B (en) 1955-05-25 1955-05-25 Process for sensitizing halide silver emulsions

Publications (1)

Publication Number Publication Date
CH348872A true CH348872A (en) 1960-09-15

Family

ID=6925261

Family Applications (1)

Application Number Title Priority Date Filing Date
CH348872D CH348872A (en) 1955-05-25 1956-04-17 Process for sensitizing halide silver emulsions

Country Status (6)

Country Link
US (1) US2944896A (en)
BE (1) BE548014A (en)
CH (1) CH348872A (en)
DE (1) DE1009020B (en)
FR (1) FR1153538A (en)
GB (1) GB814375A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923524A (en) * 1973-10-29 1975-12-02 Eastman Kodak Co Fogged direct positive silver halide emulsions containing photographic sensitizing dyes derived from substituted salicylaldehydes
US4156611A (en) * 1974-01-22 1979-05-29 Fuji Photo Film Co., Ltd. Heat-developable photosensitive materials
US3976493A (en) * 1975-02-18 1976-08-24 Polaroid Corporation Photosensitive compositions containing linked spectral sensitizers
JPS5364514A (en) * 1976-11-22 1978-06-09 Konishiroku Photo Ind Co Ltd Silver halide photographic material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166736A (en) * 1937-04-23 1939-07-18 Eastman Kodak Co Photographic emulsion
GB496520A (en) * 1937-04-26 1938-11-28 Kodak Ltd Manufacture of dyes, and their use in modifying the properties of photographic emulsions
GB534140A (en) * 1939-05-25 1941-02-28 Kodak Ltd Improvements in and relating to photographic emulsions and layers, and the manufacture of dyes for use therein and intermediates for such manufacture
DE927043C (en) * 1943-04-14 1955-04-28 Agfa Ag Fuer Photofabrikation Process for the production of methine dyes

Also Published As

Publication number Publication date
US2944896A (en) 1960-07-12
DE1009020B (en) 1957-05-23
GB814375A (en) 1959-06-03
FR1153538A (en) 1958-03-12
BE548014A (en)

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