REDUCED FURFURAL CONTENT IN POLYACRYLIC ACID CROSSLINKED CELLULOSE FIBERS

REDUCED FURFURAL CONTENT IN POLYACRYLIC ACID CROSSLINKED CELLULOSE FIBERS

Bleached polycrylic acid crosslinked cellulose fibers with reduced furfural content are disclosed. The reduced furfural content is accompanied by a strong reduction of malodor associated with crosslinked fibers. Methods of furfural reduction include treatment with hydrogen peroxide in the absence of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Stoyanov, Angel, Endres, Joerg, Busam, Ludwig, Beruda, Holger
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
IMPREGNATING OR COATING OF PAPER
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:Bleached polycrylic acid crosslinked cellulose fibers with reduced furfural content are disclosed. The reduced furfural content is accompanied by a strong reduction of malodor associated with crosslinked fibers. Methods of furfural reduction include treatment with hydrogen peroxide in the absence of alkaline or other bleaching agents subsequent to curing polyacrylic acid crosslinked cellulose fibers. Some embodiments of treated polycrylic acid crosslinked cellulose fibers have a furfural content lower than 1.3 ppm. In some embodiments, the reduction of furfural content of the treated crosslinked fibers compared to untreated crosslinked fibers is at least 55%. in some embodiments, furfural content decreases with aging of the treated crosslinked fibers.