Resilient plastic web exhibiting reduced skin contact area...

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/15 (2006.01) B29C 51/00 (2006.01)

Patent

CA 2126067

A resilient three-dimensional plastic web exhibiting reduced skin contact area and a fiber-like appearance and tactile impression. The web has a multiplicity of apertures therein, each being defined by a multiplicity of intersecting fiber-like elements interconnected to one another in the plane of the first surface of the web. Each of the fiber-like elements exhibits a substantially uniform generally upwardly concave shaped cross section along its length. The cross section comprises at least one pair of convergent substantially linear portions which intersect one another to form a vertex in the plane of the first surface of the web. This vertex reduces the skin contact area of the web providing a more comfortable feel for the user when the web is employed as a wearer contacting topsheet in a disposable absorbent bandage. Furthermore, the web provides a substantially non-glossy visible surface as there is almost no substantially planar portion in its uppermost surface to reflect incident light to the viewer's eye. The pattern of intersecting vertices in the first surface of the web substantially eliminates pooling of fluids on the first surface of the web, since there is almost no substantially planar portion on which the fluids may pool. This further contributes to the web's clean and dry appearance in use as well as more rapid fluid transport into the underlying absorbent core.

Bande de plastique tridimensionnelle élastique présentant une surface de contact superficiel, une apparence fibreuse et une impression tactile. La bande possède une multiplicité d'ouvertures, chacune étant définie par une multiplicité d'éléments de type fibreux inter reliés les uns aux autres dans le plan de la première surface de la bande. Chacun des éléments de type fibreux présente une section transversale concave généralement orientée vers le haut et substantiellement uniforme dans le sens de la longueur de l'élément. La section transversale comprend au moins une paire de portions linéaires substantiellement convergentes qui se recoupent les unes les autres pour former un sommet dans le plan de la première surface de la bande. Ce sommet réduit la surface de contact superficiel de la bande, assurant ainsi à l'utilisateur une sensation plus confortable lorsque la bande est utilisée comme surface de contact supérieure d'un pansement hydrophile. De plus, la bande présente une surface visible substantiellement mate puisqu'il n'y a presque pas de portion substantiellement plane dans sa surface supérieure pour réfléchir la lumière incidente. La configuration en sommets entrecroisés à la première surface de la bande élimine pratiquement la concentration des liquides sur la première surface de la bande, puisqu'il n'y a pratiquement aucune surface plane où les liquides peuvent se concentrer. Ce procédé contribue également à maintenir la bande sèche et propre et assure le transport plus rapide des liquides dans la couche absorbante sous-jacente.

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