Post-treatment of laminated nonwoven cellulosic fiber webs

Details Post-treatment of laminated nonwoven cellulosic fiber webs Post-treatment of laminated nonwoven cellulosic fiber webs

D - Textiles, Paper

06

C

D06C 7/02 (2006.01) A62B 23/00 (2006.01) D04H 13/00 (2006.01) D06C 3/00 (2006.01)

Patent

CA 2167836

A method for post treating a laminated precursor nonwoven web which includes layers of thermoplastic man-made fibers and at least one layer of cellulose-based staple natural fibers, including consolidating the web longitudinally and thereby reducing the maximum pore size measure of the web. The precursor web and the resultant consolidated nonwoven web am also disclosed, as is utilization of the product web in medical uses.

L'invention concerne un procédé de post-traitement d'une bande stratifiée non tissée précurseur constituée de couches de fibres synthétiques thermoplastiques et d'au moins une couche de fibres naturelles courtes à base de cellulose. Ledit procédé consiste à consolider la bande longitudinalement de manière à réduire la grosseur de pore de la bande. La bande précurseur et la bande non tissée consolidée résultante sont également décrites ainsi que l'utilisation de ladite bande ainsi produite à des fins médicales.

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