The present invention pertains, in a preferred embodiment, to a method for selectively aperturing a nonwoven web exhibiting a plurality of surface energy gradients. The method includes the steps of: providing a nonwoven web of fibers exhibiting a surface energy, the nonwoven web having a first surface,...http://www.google.es/patents/US5658639?utm_source=gb-gplus-sharePatente US5658639 - Method for selectively aperturing a nonwoven web exhibiting surface energy gradients
Method for selectively aperturing a nonwoven web exhibiting surface energy ...
