Flexible coform nonwoven web

摘要

A flexible coform nonwoven web that contains a matrix of meltblown fibers and an absorbent material is provided. The meltblown fibers may constitute from about 2 wt % to about 40 wt % of the coform web. The absorbent material may constitute from about 60 wt % to about 98 wt % of the coform web. The Cup Crush Energy/Thickness ratio of the nonwoven structure is desirably less than about 600. The coform web may be imparted with a three-dimensional texture by, for example, using a three-dimensional forming surface. The coform web is suitable for forming absorbent articles such as wipers and personal care absorbent products.

主权项

1. A wipe comprising a coform nonwoven web wherein the coform nonwoven web comprises a matrix of meltblown fibers, each smaller than 10 micrometers in diameter, wherein the meltblown fibers comprise a propylene/α-olefin copolymer and wherein the α-olefin includes ethylene, said meltblown fibers entangled with an absorbent fibrous material wherein said absorbent fibrous materials contains pulp fibers, the coform matrix of meltblown fibers and absorbent fibrous material comprising a continuous region and a plurality of offset regions in which the density of the continuous region is substantially equal to the density of the offset regions, the continuous region having a cross direction, a machine direction, and a thickness from about 0.01 millimeters to about 10.0 millimeters, the continuous region further comprising a planar first side extending in the cross direction and the machine direction and a planar second side opposite the first side, the first and second sides being separated by the thickness of the continuous region, the offset regions extending out from the first side, wherein the offset regions are positioned to define a plurality of first uninterrupted portions of the continuous regions, wherein the first uninterrupted portions of the continuous region do not underlie any offset regions, further wherein the first uninterrupted portions of the continuous region extend in a first direction in the plane of the first side, the first direction not intersecting any offset regions, and further wherein the width of the uninterrupted portions divided by the width of the offset regions is between about 0.3 and about 2.0, the widths measured perpendicular to the first direction in the plane of the first side, and even further wherein the continuous region extends completely under the offset regions; wherein the meltblown fibers constitute from 1 wt % to about 40 wt % of the web and the absorbent material constitutes from about 60 wt % to about 99 wt % of the web and wherein the Cup Crush Energy/Thickness ratio of the coform nonwoven web is less than about 600 grams.