Nonwoven sheets, adhesive articles, and methods for making...

B - Operations – Transporting – 32 – B

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B32B 7/10 (2006.01) A61F 13/02 (2006.01) B29C 59/04 (2006.01) B32B 5/26 (2006.01) C09J 7/04 (2006.01) D04H 1/58 (2006.01)

Patent

CA 2375146

Nonwoven sheet materials, and adhesive articles formed therefrom are provided that are made with fibers, preferably tensilized nonfracturable staple fibers, and binder fibers, and formed from a combination of interbonding, smooth roll calendering, and pattern embossing techniques. These sheet materials are especially useful as tape backings that are finger tearable in the cross web and the down web directions and also possess a number of other desirable properties, including acceptable tensile strength and enhanced overtaping, for example. A nonwoven sheet material, and adhesive article including the same, can include an embossed pattern having a variety of discontinuous configurations to enhance tearing properties in both the down web

L'invention concerne des matériaux en feuille non-tissés, et des articles adhésifs fabriqués à partir de ces matériaux. Lesdits matériaux sont constitués de fibres, de préférence de fibres courtes non-fracturables et ayant subi une traction, ainsi que de fibres de liaison, et sont formés à partir d'une combinaison de techniques d'interliaison, de calandrage à rouleau lisse et de gaufrage. Ces matériaux en feuille sont particulièrement utiles en tant que papiers dorsaux de bandes, pouvant être détachés avec les doigts, dans le sens transversal dans la bande et dans le sens descendant, et présentent également plusieurs autres propriétés souhaitables, dont, entre autres, une résistance à la traction acceptable et une propriété de recouvrement de bande accrue. Un matériau en feuille non-tissé, et un article adhésif le comprenant, peuvent posséder un motif de gaufrage à diverses configurations discontinues, ce qui augmente l'aptitude au déchirement dans les sens transversal et descendant dans la bande.

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