METHOD FOR SPECTRALLY SENSITIZING PHOTOGRAPHIC LIGHT-SENSITIVE EMULSION

A method for spectrally sensitizing a photographic lightsensitive emulsion, which comprises dissolving a photographic spectrally sensitizing dye having an amidinium ion auxochrome in an organic solvent containing a substantially water-free acid having a pKa not exceeding about 5, and adding this dye...

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Bibliographische Detailangaben
Hauptverfasser:	OHKI, MASANAGA, MIHARA, YUJI, TAKEI, HARUO, HINATA, MASANAO
Format:	Patent
Sprache:	eng ; fre
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:	A method for spectrally sensitizing a photographic lightsensitive emulsion, which comprises dissolving a photographic spectrally sensitizing dye having an amidinium ion auxochrome in an organic solvent containing a substantially water-free acid having a pKa not exceeding about 5, and adding this dyecontaining acid-organic solvent solution to a light-sensitive emulsion.