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 emulsionsInfo
- 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- Withdrawn
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
- G03C1/34—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
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.
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)
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 |
-
1969
- 1969-05-09 US US866036D patent/UST866036I4/en active Pending
-
1970
- 1970-01-07 FR FR7000406A patent/FR2015456A1/en not_active Withdrawn
- 1970-01-08 BE BE744199D patent/BE744199A/en unknown
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 |