HIGH CONTRAST PHOTOGRAPHIC ELEMENT AND EMULSION AND PROCESS FOR THEIR USE

HIGH CONTRAST PHOTOGRAPHIC ELEMENT AND EMULSION AND PROCESS FOR THEIR USE

Photographic elements and emulsions are described which are capable of providing high contrast images. The elements and emulsions comprise negative working silver halide and a contrast enhancing 1-(4-sulfonamidophenyl)-2-formylhydrazide nucleating agent. A process for utilization of the elements and...

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Bibliographische Detailangaben
Hauptverfasser: FLECKENSTEIN, LEE JOSEPH, LOOKER, JEROME JORDAN, LEONE, RONALD EDMUND
Format: Patent
Sprache:eng
Schlagworte:
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Beschreibung
Zusammenfassung:Photographic elements and emulsions are described which are capable of providing high contrast images. The elements and emulsions comprise negative working silver halide and a contrast enhancing 1-(4-sulfonamidophenyl)-2-formylhydrazide nucleating agent. A process for utilization of the elements and emulsions is also described.