FR2015456A1 - Use of organic disulphides as fog inhibitors - for silver halide photographic emulsions - Google Patents

Use of organic disulphides as fog inhibitors - for silver halide photographic emulsions

Info

Publication number
FR2015456A1
FR2015456A1 FR7000406A FR7000406A FR2015456A1 FR 2015456 A1 FR2015456 A1 FR 2015456A1 FR 7000406 A FR7000406 A FR 7000406A FR 7000406 A FR7000406 A FR 7000406A FR 2015456 A1 FR2015456 A1 FR 2015456A1
Authority
FR
France
Prior art keywords
silver halide
halide photographic
photographic emulsions
fog
fog inhibitors
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.)
Withdrawn
Application number
FR7000406A
Other languages
French (fr)
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of FR2015456A1 publication Critical patent/FR2015456A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/34Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
    • G03C1/346Organic 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

Photographic product comprises at least one silver halide layer applied to a support, and a fog inhibitor as stabiliser, this inhibitor consisting of a compound of formul I: (where R is alkyl or aryl; and m and n are each 1-6). Compd. I is pref. bis-2,2'-(anhydro-N-phenyl-N'-sulphoethyl-N"-guanido)ethyl/disulp- hide. The compds. I effectively inhibit the formation of chemical fog in the silver halide emulsions, without decreasing the sensitivity and contrast of the emulsions.
FR7000406A 1969-05-09 1970-01-07 Use of organic disulphides as fog inhibitors - for silver halide photographic emulsions Withdrawn FR2015456A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82350769A 1969-05-09 1969-05-09

Publications (1)

Publication Number Publication Date
FR2015456A1 true FR2015456A1 (en) 1970-04-30

Family

ID=25238958

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7000406A Withdrawn FR2015456A1 (en) 1969-05-09 1970-01-07 Use of organic disulphides as fog inhibitors - for silver halide photographic emulsions

Country Status (3)

Country Link
US (1) UST866036I4 (en)
BE (1) BE744199A (en)
FR (1) FR2015456A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5219721A (en) * 1992-04-16 1993-06-15 Eastman Kodak Company Silver halide photographic emulsions sensitized in the presence of organic dichalcogenides
US5443947A (en) * 1993-11-30 1995-08-22 Eastman Kodak Company Heat stabilized silver chloride photographic emulsions containing thiosulfonate/sulfinate compounds
US5415992A (en) * 1993-11-30 1995-05-16 Eastman Kodak Company Heat stabilized silver chloride photographic emulsions containing phosphine compounds

Also Published As

Publication number Publication date
UST866036I4 (en) 1969-09-30
BE744199A (en) 1970-06-15

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Legal Events

Date Code Title Description
ST Notification of lapse