US 2009/0157035 A1Published application

Absorbent Article with Composite Sheet Comprising Elastic Material

AssigneeThe Protect & Gamble Company

InventorsEkaterina Anatolyevna Ponomarenko, Mattias Schmidt, Tina Brown, Alexander Eberhard Unger, Alexander Berk, Darrell Ian Brown, Blanca Arizti

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Abstract

A process is claimed for making a composite sheet useful as topsheet with one or more openings to receive fecal material useful for an absorbent article, said composite sheet comprising a wrinkled, patterned elasticized region that comprises a patterned first sheet and an elastic material said first sheet being patterned with troughs, that are typically compacter, i.e. of higher density, prior to attachment to the elastic material. The troughs are attached to the elastic material. The resulting composite sheet has a uniform wrinkle pattern. Also claimed are specific absorbent articles. Also claimed are composite sheets with a specific residual strain and peel force value.

Claims20

Dependent claims

A process for making a composite sheet (10) useful for an absorbent article, said composite sheet (10) comprising a wrinkled, patterned elasticized region (12) that comprises a patterned first sheet (13) and an elastic material (15), said composite sheet (10) being obtained by:

a. obtaining a first sheet (13);
b. obtaining an elastic material (15) that is at least partially stretched;
c. i) submitting said first sheet (13) or part thereof to a patterning, pressure-applying step to obtain a patterned first sheet (13) comprising troughs (16), and then positioning said at least partially stretched elastic material (15) adjacent said patterned first sheet (13) to obtain a combined material;
or
ii) positioning said at least partially stretched elastic material (15) adjacent said first sheet (13) to obtain a combined material and simultaneously or subsequently submitting the combined material, or part thereof, to a patterning, pressure-applying step to obtain a patterned combined material, comprising a patterned first sheet (13) comprising troughs (16);
d) simultaneously or subsequent to step c) attach at least a portion of the formed troughs (16) to said elastic material (15), to obtain a stretched composite sheet (10) comprising a patterned elasticized region;
e) relaxing the composite sheet (10) of step d) to obtain a composite sheet (10) comprising a wrinkled, patterned elasticized region (12), said composite sheet (10) comprising one or more openings to receive fecal material.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/329,002Filed 5 Dec 2008
Priority: IB PCT/IB2008/0550703 Dec 2008
Published: 18 Jun 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

A61F 13/512
Topsheet, i.e. the permeable cover or layer facing the skin: characterised by its apertures, e.g. perforations
A61F 13/15593
Of babies' napkins, e.g. diapers: having elastic ribbons fixed thereto; Devices for applying the ribbons
A61F 13/15731
Mechanical treatment, e.g. notching, twisting, compressing, shaping: treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
A61F 13/49017
With elastic means: the elastic means being located at the crotch region