High water absorbent double-recreped fibrous webs

Details High water absorbent double-recreped fibrous webs High water absorbent double-recreped fibrous webs

D - Textiles, Paper

21

F

D21F 11/04 (2006.01) D21F 11/14 (2006.01) D21H 11/02 (2006.01) D21H 13/24 (2006.01) D21H 15/06 (2006.01) D21H 27/38 (2006.01) D21H 11/04 (2006.01) D21H 13/08 (2006.01) D21H 13/16 (2006.01) D21H 25/00 (2006.01)

Patent

CA 2221143

The improved creped non-laminar singular web structure comprising long fibers and short fibers demonstrated by high TWA and Z peeling. Creping causes a certain portion of long synthetic fibers and short fibers to substantially be oriented in a predetermined vertical or Z direction across the thickness of the web structure. In particular, when a stratified preparation containing wet stiff CTMP fibers is used, the vertically oriented CTMP fibers increase the total water absorption (TWA) of the web structure without collapsing. The high TWA print/double-creped paper products manufactured from the above web structure are suitable for heavy wipe and dry uses.

L'invention concerne une structure en bande améliorée unique, crêpée, non stratifiée, comprenant des fibres longues et des fibres courtes et se caractérisant par une grande capacité d'absorption de l'eau et un pelage en Z. Le crêpage permet d'orienter une certaine partie des fibres synthétiques longues et courtes sensiblement dans un sens vertical ou en Z prédéterminé sur l'épaisseur de la structure en bande. Plus particulièrement, lorsqu'une préparation stratifiée contenant des fibres de pâte chimico-thermomécanique rigides et humides est utilisée, les fibres de pâte chimico-thermomécanique orientées verticalement augmentent la capacité d'absorption totale d'eau de la structure en bande, sans affaissement. Les produits en papier à double-crêpage/impression et capacité d'absorption d'eau élevée fabriqués à partir de la structure en bande selon l'invention, conviennent à l'essuyage et au séchage intensifs.

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