CPC A61F 13/5146 (2013.01) [A61F 13/15707 (2013.01); A61F 13/51401 (2013.01); A61F 2013/51443 (2013.01); A61F 2013/51452 (2013.01)] | 13 Claims |
1. A nonwoven substrate comprising:
a) a top surface;
b) a bottom surface; and
c) a plurality of apertures, each of which extends from the top surface through said nonwoven substrate to the bottom surface,
wherein said plurality of apertures define a plurality of discrete non-aperture zones;
wherein each of said plurality of discrete non-aperture zones has a periphery formed by a continuous line of apertures, with adjacent apertures being spaced apart by an edge-to-edge distance of no more than 3 mm; wherein each of said plurality of discrete non-aperture zones is substantially free of apertures within the periphery; wherein the area ratio of said plurality of discrete non-aperture zones over said nonwoven substrate ranges from 60% to 90%; and wherein some of said plurality of discrete non-aperture zones have an area of 100 mm2 or more,
wherein each of said plurality of apertures has a size ranging from 0.2 mm2 to 1.5 mm2, or from 0.4 mm2 to 1.3 mm2, and
wherein said plurality of apertures further define one or more aperture zones;
wherein each of said one or more aperture zones comprises four or more apertures therein; wherein each aperture within each of said aperture zones has at least three adjacent apertures that are spaced apart from it by an edge-to-edge distance of no more than 3 mm.
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