DE2020939

Photographic images are obtained by a dry process by imagewise exposing and then heating a light-sensitive material containing a substantially non-lightsensitive silver salt, a compound of the pyrazolin-5-on series capable of reducing the silver salt at a temperature of between 60 DEG and 160 DEG C...

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Bibliographische Detailangaben
Hauptverfasser:	HEUGEBAERT, FRANS CLEMENT, POOT, ALBERT LUCIEN, BRINCKMAN, ERIC MARIA, MORTSEL
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 images are obtained by a dry process by imagewise exposing and then heating a light-sensitive material containing a substantially non-lightsensitive silver salt, a compound of the pyrazolin-5-on series capable of reducing the silver salt at a temperature of between 60 DEG and 160 DEG C in the presence of photolytically formed heavy metal nuclei and a light-sensitive silver or other heavy metal compound capable of forming such nuclei upon exposure to light.