Polymeric web exhibiting a soft and silky tactile impression

D - Textiles – Paper – 06 – N

Patent

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Details

D06N 7/04 (2006.01) A61F 13/15 (2006.01) A61F 13/512 (2006.01) B32B 3/12 (2006.01) B32B 3/30 (2006.01) B32B 33/00 (2006.01)

Patent

CA 2507178

A polymeric web exhibiting a soft and silky tactile impression on at least one side thereof is disclosed. The silky feeling side of the web exhibits a pattern of discrete hair-like fibrils, each of the hair-like fibrils being a protruded extension of the web surface and having a side wall defining an open proximal portion and a closed distal portion. The hair-like fibrils exhibit a maximum lateral cross-sectional diameter of between 2 and 5 mils, and an aspect ratio from 1 to 3. Methods and apparatus for making the polymeric web utilize a three-dimensional forming structure having a plurality of protrusions being generally columnar forms having an average aspect ratio of at least about 1.

Cette invention concerne une bande polymère procurant une sensation tactile douce et soyeuse sur au moins un de ses côtés. Le côté de la bande procurant une sensation soyeuse présente un motif de fibrilles filamenteuses discrètes, chacune de ces fibrilles filamenteuses constituant une extension en saillie de la surface de la bande et comprenant une paroi latérale définissant une partie proximale ouverte ainsi qu'une partie distale fermée. Ces fibrilles filamenteuses présentent un diamètre de section transversale latéral maximum compris entre 2 et 5 millièmes et un rapport d'aspect compris entre 1 et 3. Cette invention concerne également des procédés et un appareil permettant de fabriquer cette bande polymère, lesquels font intervenir une structure de formation tridimensionnelle comprenant une pluralité de protubérances représentant des formes globalement colonnaires dont le rapport d'aspect moyen est d'au moins environ 1.

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