PROCESS FOR PRODUCTION OF BLEACHED PULP

A process for the production of bleached pulp which comprises subjecting unbleached pulp obtained by digesting a lignocellulosic material to oxygen-alkali bleaching and then elementary-chlorine-free bleaching involving chlorine dioxide treatment, wherein peroxomonosulfuric acid is jointly used in at...

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Bibliographische Detailangaben
Hauptverfasser:	KOSHITSUKA, TETSUO, YOSHIDA, KIYOSHI, KUWABARA, EIKO, ISHII, TAKASHI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR PAPER-MAKING PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES
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Beschreibung
Zusammenfassung:	A process for the production of bleached pulp which comprises subjecting unbleached pulp obtained by digesting a lignocellulosic material to oxygen-alkali bleaching and then elementary-chlorine-free bleaching involving chlorine dioxide treatment, wherein peroxomonosulfuric acid is jointly used in at least one of the stages of chlorine dioxide treatment to reduce the amount of chlorine dioxide used and to improve the discoloration resistance of bleached pulp.