Apparatus for making a polymeric web exhibiting a soft and...

B - Operations – Transporting – 29 – C

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B29C 59/00 (2006.01) A61F 13/512 (2006.01) B44B 5/00 (2006.01) D06C 23/00 (2006.01)

Patent

CA 2507169

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.

L'invention concerne une bande polymère présentant un aspect tactile doux et soyeux sur au moins un de ces côtés. Le côté au toucher soyeux de cette bande présente un motif de fibrilles discrètes de type cheveu, chaque fibrille de type cheveu étant un prolongement en saillie de la surface de la bande et présentant une paroi latérale définissant une partie proximale ouverte et une partie distale fermée. Les fibrilles de type cheveu présentent un diamètre de section latérale maximale compris entre 2 et 5 mil, et un indice de minceur compris entre 1 et 3. L'invention concerne des procédés et un appareil pour fabriquer cette bande polymère. Ces procédés et cet appareil font appel à une structure de formation tridimensionnelle présentant une pluralité de saillies, généralement de forme colonnaire, présentant un indice de minceur égal à 1 environ.

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