Patent ID: 8021997
Filing Date: 2011-09-20
Classification: D04H,Y10T

Abstract:
1. A multicomponent spunbonded nonwoven comprising: elementary filaments including a first or second polymer, the elementary filaments being derived from splitting the first and the second elementary filaments being of first and second uniform titers, respectively, and the third and the fourth elementary filaments being of third and fourth uniform titers, respectively, that are less than the first and the second uniform titers; and wherein the titer of each of the elementary filaments depends on the number of elementary filaments derived from the respective multicomponent filament from which each of the elementary filaments is derived, wherein the elementary filament are arranged within the multicomponent spunbonded nonwoven such that the multicomponent spunbonded nonwoven has a titer gradient along the z direction of the sheet-like multicomponent spunbonded nonwoven.