Method for producing paper, and pitch removal agent

Provided are a method for producing paper, by which pitch can be removed efficiently, and a pitch removal agent. When producing paper using used paper, a pitch removal agent consisting of a poly(vinyl alcohol), which has an average degree of polymerization of 300-2500 and a degree of saponification...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TAKEDA HIROKI, TOMITA MUNETOSHI, TAGUCHI CHIGUSA
Format:	Patent
Sprache:	chi ; 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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