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Application filed by Jacques Theodore GateaufiledCriticalJacques Theodore Gateau
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Publication of AT36846BpublicationCriticalpatent/AT36846B/en
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Claims (1)
PATENTANSPRUCH :
Photographische Emulsion Für Pigmentpapiere, dadurch gekennzeichnet, dass ein Cer-, Eisen-oder Uransalz mit in klarem Wasser unlöslichen, aber ohne chemische Veränderung mit Hilfe von neutralen Salzen, Alkalien oder Säuren in lösliche Form überführbaren und aus diesen Lösungen wieder fällbaren Albuminderivaten gemischt wird.
PATENT CLAIM:
Photographic emulsion for pigment papers, characterized in that a cerium, iron or uranium salt is mixed with albumin derivatives which are insoluble in clear water but without chemical change with the aid of neutral salts, alkalis or acids and which can be reprecipitated from these solutions.
Process for the production of parchment paper and papers of a more or less pronounced parchment-like character and of varying degrees of water resistance.
Device for obtaining a pure fiber material from paper, cardboard or the like introduced in the pulpy state into a suitably heated liquid containing alkaline reagents.