A61F2013/5127

PATTERNED APERTURED WEBS

A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances have a distribution having a median and a mean.

ABSORBENT ARTICLES HAVING NONWOVEN MATERIALS WITH NATURAL FIBERS
20210330518 · 2021-10-28 ·

An absorbent article comprises a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core positioned at least partially intermediate the topsheet and the backsheet. A wearer-facing nonwoven material comprising three-dimensional features and forming at least a portion of a wearer-facing surface of the topsheet of the absorbent article is provided. The wearer-facing nonwoven material comprises a plurality of generally planar regions that do not overlap with the three-dimensional features. The generally planar regions comprise recesses. The recesses may comprise apertures. The wearer-facing nonwoven material comprises at least 50% natural fibers, by weight of the nonwoven material.

Patterned Apertured Webs

A patterned apertured web is disclosed. The patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured web has an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test herein. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test herein. The Interaperture Distances have a distribution having a median and a mean, wherein the mean is different than the median. The plurality of apertures include a first set of apertures defining a first shape and a second set of apertures defining a second shape. The first shape is positioned within the second shape.

Apertured Nonwoven
20210324554 · 2021-10-21 ·

An apertured nonwovens having a first nonwoven layer is described. The first nonwoven layer includes cellulose-based fibers and a plurality of apertures, wherein the plurality apertures have a minimum aperture distance between two adjacent apertures which has a relative standard deviation no greater than about 40%, as measured according to the Aperture Quality Test. The apertures have an aperture size no greater than about 2.2 mm.sup.2 and have an occlusion no greater than about 9%, as measured according to the Aperture Quality Test, or the apertures have an aspect ratio no greater than about 2.5 as measured according to the Aspect Ratio Test.

Apertured webs and methods for making the same

A patterned apertured web includes a plurality of land areas in the patterned apertured web and a plurality of apertures defined in the patterned apertured web. At least some of the land areas surround at least some of the apertures. The patterned apertured web has an Effective Open Area in the range of about 5% to about 50%, according to the Aperture Test. The patterned apertured web has a plurality of Interaperture Distances, according to the Aperture Test. The Interaperture Distances have a distribution having a median and a mean. The mean is greater than the median.

THREE-DIMENSIONAL SUBSTRATES

A liquid permeable substrate for an absorbent article is disclosed. The substrate includes a first layer including a hydrophobic material and a second layer including a hydrophilic material. The first layer is joined to the second layer. The substrate includes a plurality of recesses, a plurality of projections, and a plurality of land areas. The land areas surround at least a majority of the plurality of projections and a plurality of the recesses. The plurality of recesses, the plurality of projections, and the plurality of land areas together form a first three-dimensional surface on a first side of the substrate and a second three-dimensional surface on a second side of the substrate. The substrate has an overall z-directional height in the range of about 1000 μm to about 6000 μm according to the Overall Substrate Height Test.

Apertured webs and methods for making the same

Patterned apertured webs are provided. The patterned apertured webs include a plurality of land areas and a plurality of apertures defined in the patterned apertured webs. At least some land areas of the plurality of land areas surround at least some apertures of the plurality of apertures. The patterned apertured webs have an Effective Open Area in the range of about 3% to about 30%, according to the Aperture Test.

Method of manufacturing an activated composite web and an activated composite web for absorptive devices

A method of manufacturing an activated composite web includes laminating a film layer to a nonwoven web to form a composite web, forming a plurality of apertured protuberances in the film layer, and passing the composite web through intermeshing elements to form an activated composite web. The intermeshing elements form a plurality of first lanes, with first widths, substantially unaffected by activation, and a plurality of second lanes, with second widths. The second widths are less than the first widths. Portions of the plurality of apertured protuberances define first apertures in the first lanes and second apertures in the second lanes. The cross-sections of the second apertures are larger than the first apertures. The first apertures have their major axes substantially aligned in the first direction while the second apertures have their major axis substantially aligned in the second direction. An activated composite web also is provided.

Apertured webs and methods for making the same

A patterned apertured web includes a plurality of first arrays forming a first zone in the patterned apertured web. At least some of the first arrays include a first plurality of land areas and a first plurality of apertures. At least some of the first plurality of land areas surround at least some of the first plurality of apertures. The first plurality of apertures of the first zone have a plurality of Interaperture Distances, according to the Aperture Test. The Interaperture Distances of the first zone have a first distribution having a first mean and a first median. The first mean is greater than the first median by at least 4%.

Assembly features and methods for a peel-and-place dressing for use with negative-pressure treatment
10940048 · 2021-03-09 · ·

Dressings for tissue treatment with negative pressure and methods of assembling the dressings for tissue treatment with negative pressure are disclosed. A method of assembling a dressing, which may comprise at least three layers assembled in a stacked relationship, may comprise providing an assembly station having at least one retaining pin, placing a first layer on the assembly station, placing a second layer on the assembly station, and bonding the second layer to the first layer. The first layer may comprise a plurality of apertures, at least some of which may be engaged by the retaining pins, and the second layer may comprise fluid restrictions and alignment areas for engaging with the retaining pins so that the fluid restrictions may be aligned with the apertures of the third layer.