Loop materials for touch fastening
AssigneeVekro Industries B.V.
InventorsWilliam H. Shepard, George A. Provost
Life of this patent
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Abstract
Loop materials are provided for touch fastening. The loop materials include a web of nonwoven fibrous material defining a plane, the web including: (a) raised areas, elevated above the plane of the web, defining loops constructed for engagement with male touch fastener elements; (b) rib areas surrounding the raised areas to anchor the loops; and (c) between the rib areas, either open areas, or planar areas that are substantially in the plane of the web.
Claims27
A loop material for touch fastening comprising:
- a web of nonwoven fibrous material defining a plane, the web including:
- (a) raised areas, elevated above the plane of the web, defining loops constructed for engagement with male touch fastener elements;
- (b) rib areas surrounding the raised areas to anchor the loops;
- and
- (c) between the rib areas, planar areas that are substantially in the plane of the web.
A loop material for touch fastening comprising:
- a web of nonwoven fibrous material defining a plane, the web including:
- (a) raised areas, elevated above the plane of the web, defining loops constructed for engagement with male touch fastener elements;
- (b) rib areas surrounding the raised areas to anchor the loops;
- and
- (c) between the rib areas, open areas.
A loop material for touch fastening comprising:
- a web of nonwoven fibrous material defining a plane, the web including:
- (a) raised areas, elevated above the plane of the web, defining loops constructed for engagement with male touch fastener elements;
- and
- (b) rib areas surrounding the raised areas to anchor the loops, the rib areas having a height of at least 0.003 inch above the plane of the web.
A method of forming a loop material for touch fastening, the method comprising:
- (a) passing a nonwoven web through a nip between a flat roll and an embossing roll;
- and
- (b) during step (a), applying pressure to the nonwoven web;
- wherein the embossing roll includes a patterned surface comprising depressions, grooves and lands which correspond, respectively, to raised areas, rib areas and planar or open areas of the loop material, the raised areas defining loops constructed for engagement with male touch fastener elements, and the rib areas surrounding the raised areas to anchor the loops.
Dependencies are inferred from the claim text.