Fractionation process for cellulosic fibers

Details Fractionation process for cellulosic fibers Fractionation process for cellulosic fibers

D - Textiles, Paper

21

F

D21F 11/14 (2006.01) A61F 13/15 (2006.01) D21D 5/00 (2006.01) D21H 15/02 (2006.01)

Patent

CA 2273285

Disclosed is a process for fractionating cellulosic fibers that is effective to result in cellulosic fibers that exhibit desired properties such as fiber length and fiber coarseness values. The fractionating process is quite efficient and has been found to produce cellulosic fibers that are more homogeneous in their properties as compared to the starting mixture of cellulosic fibers. Also disclosed is a handsheet prepared from the fractionated cellulosic fibers for use in disposable absorbent products.

Cette invention porte sur une technique de fractionnement de fibres cellulosiques qui permet de produire avantageusement des fibres cellulosiques modifiées faisant montre de caractéristiques souhaitées, notamment pour ce qui a trait à la longueur de fibre ainsi qu'à la rudesse des fibres. Cette technique de fractionnement se révèle des plus satisfaisante, s'agissant de produire des fibres cellulosiques aux propriétés plus homogènes en comparaison de celles du mélange de départ à base de fibres cellulosiques. L'invention concerne également une feuille de laboratoire produite à partir de ces fibres cellulosiques fractionnées à utiliser dans des articles absorbants jetables.

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