Selectively apertured nonwoven web

Details Selectively apertured nonwoven web Selectively apertured nonwoven web

1997-03-03

1999-06-29

Watkins III, William P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428138, 428198, 604378, 604383, B32B 324, A61F 1346

Patent

active

059166614

ABSTRACT:
The present invention provides a method for selectively aperturing a nonwoven web. A nonwoven web is weakened along a plurality of locations and then a tensioning force is applied to the nonwoven web causing the nonwoven web to rupture at the plurality of weakened location creating a plurality of apertures in the nonwoven web coincident with the weakened locations

REFERENCES:
patent: 3459618 (1969-08-01), Egler
patent: 4333979 (1982-06-01), Sciaraffa et al.
patent: 4588630 (1986-05-01), Shimalla
patent: 5567501 (1996-10-01), Srinivasan et al.
patent: 5628097 (1997-05-01), Benson et al.
patent: 5658639 (1997-08-01), Curro et al.

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