Disposable absorbent articles with wings having corrugated regions and methods of manufacturing thereof
AssigneeThe Procter & Gamble Company
InventorsGuido Bonelli, Nicola D'Alesio
Life of this patent
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Abstract
A disposable absorbent article with one or more side flaps or wings, having at least one corrugated region, is disclosed. The corrugated region includes a corrugated material having a multiplicity of ridges and recesses, a release material opposed to the corrugated material, and a multiplicity of glue strips between the corrugated material and the release material. The glue strips are attached to the crests of the ridges of the corrugated material. Also, methods of fabricating a composite material including the corrugated region are also disclosed.
Claims20
A disposable absorbent article having one or more side flaps or wings, comprising:
- (a) a fluid-pervious topsheet a fluid-impervious backsheet opposing said topsheet, and an absorbent core disposed between said topsheet and said backsheet, said article having a longitudinal direction and a transverse direction perpendicular thereof;
- (b) said one or more wings extending in said transverse direction and comprising at least one corrugated region including a multiplicity of ridges and recesses, said ridges rising toward a garment-facing surface of said article and having glue strips attached to crests of said ridges;
- and
- (c) a release material for covering said at least one corrugated region, said release material contacting said glue strips.
A method of producing a composite material including a corrugated material, a release material opposed thereto, and a multiplicity of glue ships disposed between the release material and the corrugated material and attached to the crests of the corrugated material, the method comprising the steps of:
- (a) providing at least two corrugating rolls, counter-rotating and engaged with each other, said corrugating rolls having a multiplicity of ridges and recesses disposed on the outer surfaces of said corrugating rolls, said ridges extending perpendicularly to axes of rotation of said corrugating roll and being separated from each other at a pitch;
- (b) providing a first material between said corrugating rolls for deforming said first material into a corrugated material having a multiplicity of ridges and recesses;
- (c) heat-treating said corrugated material at a temperature less than the melting temperature of said first material;
- (d) providing a release material having a multiplicity of glue strips disposed in a machine direction and at said pitch therebetween;
- and
- (e) combining said release material with said corrugated material, wherein said multiplicity of glue strips are attached to crests of said ridges of said corrugated material to form said composite material.
A method of producing a composite material including a corrugated material, a release material opposed thereto, and a multiplicity of glue strips disposed between the release material and the corrugated material and attached to the crests of the corrugated material, the method comprising the steps of:
- (a) providing at least two corrugating rolls, counter-rotating and engaged with each other, said corrugating rolls having a multiplicity of ridges and recesses disposed on the outer surfaces of said corrugating rolls, said ridges extending perpendicularly to axes of rotation of said corrugating roll and being separated from each other at a pitch;
- (b) providing a first material between said corrugating rolls for deforming said first material into a corrugated material having a multiplicity of ridges and recesses;
- (c) heat-treating said corrugated material at a temperature less than the melting temperature of said first material;
- (d) providing a glue-covered roll for contacting crests of said ridges of said corrugated material with a glue to transfer said glue from said glue-covered roll to said crests of said ridges of said corrugated material;
- (e) providing a release material;
- and
- (f) combining said release material with said corrugated material, wherein said glue at said crests is disposed between said corrugated material and said release material to form said composite material.
Dependencies are inferred from the claim text.