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GB1261140A - A photographic silver halide emulsion having an increased sensitivity and reduced fogging - Google Patents

A photographic silver halide emulsion having an increased sensitivity and reduced fogging

Info

Publication number
GB1261140A
GB1261140A GB62530/69A GB6253069A GB1261140A GB 1261140 A GB1261140 A GB 1261140A GB 62530/69 A GB62530/69 A GB 62530/69A GB 6253069 A GB6253069 A GB 6253069A GB 1261140 A GB1261140 A GB 1261140A
Authority
GB
United Kingdom
Prior art keywords
silver halide
halide emulsion
increased sensitivity
photographic silver
reduced fogging
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
GB62530/69A
Inventor
Harold Hueckstaedt
Wilhelm Saleck
August Randolph
Franz Moll
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert 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 Gevaert AG filed Critical Agfa Gevaert AG
Publication of GB1261140A publication Critical patent/GB1261140A/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
    • G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08—Sensitivity-increasing substances
    • G03C1/09—Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising
    • 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
    • G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium

Landscapes

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

Abstract

1,261,140. Photographic emulsions. AGFA-GEVAERT A. G. Dec. 23, 1969 [Dec. 23 1968], No. 62530/69. Heading G2C. Light-sensitive silver halide emulsions contain bis (aminoethyl) disulphide, bis (aminopropyl) disulphide or a mineral acid salt thereof to increase sensitivity and reduce fog. The compounds may be added before during or after ripening and may be added to the casting solution.
GB62530/69A 1968-12-23 1969-12-23 A photographic silver halide emulsion having an increased sensitivity and reduced fogging Expired GB1261140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681816571 DE1816571A1 (en) 1968-12-23 1968-12-23 Halogen silver photographic emulsion with increased sensitivity and reduced fog

Publications (1)

Publication Number Publication Date
GB1261140A true GB1261140A (en) 1972-01-19

Family

ID=5717200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB62530/69A Expired GB1261140A (en) 1968-12-23 1969-12-23 A photographic silver halide emulsion having an increased sensitivity and reduced fogging

Country Status (5)

Country Link
US (1) US3647469A (en)
BE (1) BE743489A (en)
DE (1) DE1816571A1 (en)
FR (1) FR2026969A1 (en)
GB (1) GB1261140A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE788685A (en) * 1971-09-13 1973-03-12 Agfa Gevaert Nv DEVELOPMENT OF CONTRASTRICH SILVER HALOGENIDE EMULSIONS FOR GRAPHIC PURPOSES
DE2931690A1 (en) * 1979-08-04 1981-02-19 Agfa Gevaert Ag PHOTOGRAPHIC EMULSION, METHOD FOR THE PRODUCTION AND PHOTOGRAPHIC MATERIALS
JPS5883852A (en) * 1981-11-13 1983-05-19 Fuji Photo Film Co Ltd Method for bleaching color photographic material
DE3641861A1 (en) * 1985-12-09 1987-06-11 Fuji Photo Film Co Ltd COLOR PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL AND METHOD FOR THE PRODUCTION THEREOF

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438716A (en) * 1944-10-06 1948-03-30 Gen Aniline & Film Corp Stabilized silver halide emulsions
BE593047A (en) * 1959-07-17

Also Published As

Publication number Publication date
US3647469A (en) 1972-03-07
DE1816571A1 (en) 1970-07-09
FR2026969A1 (en) 1970-09-25
BE743489A (en) 1970-06-22

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