Gelatin hardening method and photographic materials prepared with the aid thereof

At least some of the secondary alcohol groups of polysaccharides having pyranose units are oxidized to aldehyde groups for example by means of solutions of water-soluble salts of periodic acid, said polysaccharides being alginic acid, sodium alginate, gum arabic, xylan or pectic acid.ALSO:Gelatin is...

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Hauptverfasser:	VRANCKEN MARCEL NICOLAS, LEMMERLING JOSE THERESE
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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