Hydrophilic nonwoven having apertures and absorbent article comprisng the same
AssigneeThe Procter & Gamble Company
InventorsXiaojuan Sun, Gueltekin Erdem
Life of this patent
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Abstract
The present disclosure is related to a nonwoven comprising a first layer free from cellulose-based fibers. The first layer comprises a first surface, an opposite second surface, and a plurality of apertures. The first surface of the first layer comprises a hydrophilic non-aperture area having a first non-aperture area contact angle as measured by a Contact Angle Test. Each of a majority of the plurality of apertures has a side wall having an aperture contact angle as measured by the Contact Angle Test. The aperture contact angle is higher than the first non-aperture area contact angle.
Claims18
An absorbent article having a wearer facing surface and a garment facing surface, the absorbent article comprising:
- a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet;
- wherein the topsheet comprises a first layer free from cellulose-based fibers, the first layer comprising a first surface, an opposite second surface, and a plurality of apertures, wherein the first surface of the first layer forms at least part of the wearer facing surface;
- wherein the first surface of the first layer comprises a hydrophilic non-aperture area having a first non-aperture area contact angle as measured by Contact Angle Test;
- and
- wherein each of a majority of the plurality of the apertures has a side wall having an aperture contact angle as measured by Contact Angle Test, the aperture contact angle being higher than the first non-aperture area contact angle.
A nonwoven comprising a first layer free from cellulose-based fibers, the first layer comprising a first surface, an opposite second surface, and a plurality of apertures;
- wherein the first surface of the first layer comprises a hydrophilic non-aperture area having a first non-aperture area contact angle as measured by Contact Angle Test;
- and
- wherein each of a majority of the plurality of the apertures has a side wall having an aperture contact angle as measured by Contact Angle Test, the aperture contact angle being higher than the first non-aperture area contact angle.
A method for producing an apertured nonwoven comprising steps of:
- a) providing a first layer free from cellulose-based fibers, a first surface and an opposite second surface;
- b) providing an aperturing apparatus comprising a first forming member and a second forming member which engages the first forming member, wherein the first forming member comprises a plurality of pins on its surface and the second forming member comprises a plurality of recesses on its surface;
- c) wetting the pins on the first forming member with a treatment having a HLB value not higher than about 13;
- and
- d) moving the first layer between the first and second forming members so that apertures are formed in the first layer as the pins on the first forming member and the recesses on the second forming member are engaged;
- wherein the first surface of the first layer comprises a land area having a first non-aperture area contact angle measured by a Contact Angle Test;
- and
- wherein each of a majority of the plurality of the apertures has a side wall having an aperture contact angle as measured by the Contact Angle Test, the aperture contact angle being higher than the non-aperture area contact angle.
Dependencies are inferred from the claim text.