AKD COMPOSITION AND MANUFACTURE OF PAPER AND PAPERBOARD

AKD cellulosic composition obtainable by flowing a stream of a cellulosic suspension through a shearing device and in which a molten alkyl ketene dimer (AKD) is metered in to the stream of cellulosic suspension in or prior to the shearing device. The AKD cellulosic composition is particularly suitab...

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Bibliographische Detailangaben
Hauptverfasser:	GRANSTROEM, MARI, KERN, HOLGER, KROENER, HUBERTUS, KINDLER, ALOIS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	AKD cellulosic composition obtainable by flowing a stream of a cellulosic suspension through a shearing device and in which a molten alkyl ketene dimer (AKD) is metered in to the stream of cellulosic suspension in or prior to the shearing device. The AKD cellulosic composition is particularly suitable in the manufacture of sized paper and paperboard. L'invention porte sur une composition cellulosique renfermant de l'AKD pouvant être obtenue par circulation d'un courant d'une suspension cellulosique dans un dispositif de cisaillement, un dimère d'alkyl-cétène (AKD) fondu étant ajouté de façon dosée au courant de suspension cellulosique dans le dispositif de cisaillement ou avant celui-ci. La composition cellulosique renfermant de l'AKD est particulièrement appropriée dans la fabrication de papier et carton collés.