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US 5,628,097 AGranted
Method for selectively aperturing a nonwoven web
AssigneeThe Procter & Gamble Company
InventorsDouglas H. Benson, John J. Curro
Life of this patent
Estimating the term…
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.
Claims18
A method for selectively aperturing a nonwoven web comprising the steps of:
- a) providing a nonwoven web;
- b) weakening said nonwoven web at a plurality of locations to create a plurality of weakened, melt-stabilized locations;
- c) providing an incremental stretching means;
- and
- d) subjecting said nonwoven web to incremental stretching by said incremental stretching means causing said nonwoven web to rupture at said plurality of weakened, melt-stabilized locations creating a plurality of apertures in said nonwoven web coincident with said plurality of weakened, melt-stabilized locations.
2 more elements
A method for selectively aperturing a bonded nonwoven web comprising the steps of:
- a) providing a nonwoven web;
- b) weakening said nonwoven web without rupturing said nonwoven web at a plurality of locations to create a plurality of weakened, melt-stabilized locations;
- c) providing an incremental stretching means;
- and
- d) subjecting said nonwoven web to incremental stretching by said incremental stretching means causing said nonwoven web to rupture at said plurality of weakened, melt-stabilized locations creating a plurality of apertures in said nonwoven web coincident with said plurality of weakened, melt-stabilized locations.
2 more elements
Dependencies are inferred from the claim text.