processo para preparar um material estreitado

摘要

A process for making a plurality of necked nonwoven strips having similar or identical cross-directional profiles includes the steps of slitting a neckable nonwoven web into a plurality of neckable nonwoven strips, passing the neckable nonwoven web between a first pair of nip rollers having a first surface velocity and a second pair of nip rollers having a second surface velocity greater than the first surface velocity, and necking the nonwoven web between the first pair of nip rollers and the second pair of nip rollers.