METHOD FOR PRODUCING PULP FIBER FOR CARBOXYLATED CELLULOSE NANOFIBRILLATION USE, AND PULP FIBER FOR CARBOXYLATED CELLULOSE NANOFIBRILLATION USE

The purpose of the present disclosure is to provide a method for producing a pulp fiber for carboxylated cellulose nanofibrillation use whereby it is possible to form a carboxylated cellulose nanofiber having an excellent balance between handling properties and physical properties.A method for produ...

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Bibliographische Detailangaben
Hauptverfasser:	KATO, Takashi, KONISHI, Takayoshi, KURITA, Noritomo, ICHIURA, Hideaki, BANDOH, Takeshi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE IMPREGNATING OR COATING OF PAPER MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING POLYSACCHARIDES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS PROSTHESES PULP COMPOSITIONS REGENERATION OF PULPING LIQUORS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	The purpose of the present disclosure is to provide a method for producing a pulp fiber for carboxylated cellulose nanofibrillation use whereby it is possible to form a carboxylated cellulose nanofiber having an excellent balance between handling properties and physical properties.A method for producing a pulp fiber for carboxylated cellulose nanofibrillation use characterized by comprising a fiber formation step in which an ozone-containing gas is fed to a treatment solution having a wood pulp fiber immersed therein and having a pH value of 6.5 or less in such a manner that a CT value which is a product of the concentration of ozone in the ozone-containing gas and the time for the treatment can become more than 6000 ppm·min to form the pulp fiber for carboxylated cellulose nanofibrillation use from the wood pulp fiber.