CH458920A - Process for the preparation of photographic silver halide emulsions with increased sensitivity - Google Patents

Process for the preparation of photographic silver halide emulsions with increased sensitivity

Info

Publication number
CH458920A
CH458920A CH1321464A CH1321464A CH458920A CH 458920 A CH458920 A CH 458920A CH 1321464 A CH1321464 A CH 1321464A CH 1321464 A CH1321464 A CH 1321464A CH 458920 A CH458920 A CH 458920A
Authority
CH
Switzerland
Prior art keywords
preparation
silver halide
increased sensitivity
halide emulsions
photographic silver
Prior art date
Application number
CH1321464A
Other languages
German (de)
Inventor
August Dr Randolph
Wilhelm Dr Saleck
Herbert Dr Grabhoefer
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 CH458920A publication Critical patent/CH458920A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/305—Additives other than developers
    • 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
    • G03C1/043—Polyalkylene oxides; Polyalkylene sulfides; Polyalkylene selenides; Polyalkylene tellurides
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1321464A 1963-10-12 1964-10-12 Process for the preparation of photographic silver halide emulsions with increased sensitivity CH458920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA44295A DE1189381B (en) 1963-10-12 1963-10-12 Methods of increasing the sensitivity of photographic silver halide emulsions

Publications (1)

Publication Number Publication Date
CH458920A true CH458920A (en) 1968-06-30

Family

ID=6934115

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1321464A CH458920A (en) 1963-10-12 1964-10-12 Process for the preparation of photographic silver halide emulsions with increased sensitivity

Country Status (4)

Country Link
BE (1) BE654253A (en)
CH (1) CH458920A (en)
DE (1) DE1189381B (en)
GB (1) GB1067958A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203554A1 (en) * 1981-02-03 1982-10-14 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa METHOD FOR PRODUCING A PHOTOGRAPHIC IMAGE
GB8803281D0 (en) * 1988-02-12 1988-03-09 Ciba Geigy Ag Development accelerators

Also Published As

Publication number Publication date
BE654253A (en) 1965-04-12
GB1067958A (en) 1967-05-10
DE1189381B (en) 1965-03-18

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