Method of treating cellulose fibres under acidic conditions in the presence of carboxymethyl cellulose

Disclosed is a method of modifying cellulose fibres comprising providing a pulp suspension of cellulose fibres, adding a cellulose derivative (such as carboxymethyl cellulose) during the bleaching of said cellulose fibres to at least one acidic bleaching stage, wherein the pH in the pulp suspension...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NORDIN, JAN, BALTSEN, HANS-AKE, GRESCHIK, THOMAS CHRISTOPHER
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS PULP COMPOSITIONS REGENERATION OF PULPING LIQUORS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	Disclosed is a method of modifying cellulose fibres comprising providing a pulp suspension of cellulose fibres, adding a cellulose derivative (such as carboxymethyl cellulose) during the bleaching of said cellulose fibres to at least one acidic bleaching stage, wherein the pH in the pulp suspension is from about 1 to about 4 and the temperature ranges from about 30 to about 95°C.