Process for preparing an elastic nonwoven web

摘要

Product containing a thermally bonded elastic nonwoven web obtainable by a process characterized by the following steps:
(i) providing a thermally bonded nonwoven precursor web containing thermoplastic fibers,
(ii) subjecting the precursor web of step (i) to a drawing treatment in a machine direction at a drawing rate of from 45 to 70 %, and
a strain rate within a range of from 1000 to 2400 %/min
at a temperature between the softening point and the melting point of the fibers for preparing the elastic thermally bonded nonwoven web.