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1. WO1997025893 - FEMALE COMPONENT FOR REFASTENABLE FASTENING DEVICE HAVING REGIONS OF DIFFERENTIAL EXTENSIBILITY

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

1. A femaie component of a refastenable fastening device capable of engaging a complementary hook fastening component, said female component characterized in that said female component comprises:

an elastomeric adhesive backing having an elongated orientation, a relaxed orientation, a path of response along which said material contracts from said elongated orientation to said relaxed orientation and at least two regions of differential elongation; and

a nonwoven web in contact with, and thereby secured to, said elastomeric adhesive backing, said nonwoven web being secured to said elastomeric adhesive backing while said backing is in said elongated orientation, said nonwoven web comprising a multiplicity of fibrous elements comprising filaments that are joined together with inter-fiber bonds at spaced, fixed regions along the length of each of said filaments to define between each pair of fixed regions an unsecured catching region, wherein said fibrous elements comprise those filaments that are shiπed when said backing contracts to said relaxed orientation.

2. A female component for a refastenable fastening device capable of engaging a complementary hook fastening component, said female component characterized in that said female component comprises:

an elastomeric adhesive backing having a first surface, a second surface, an elongated orientation, a relaxed orientation, and a path of response along which said material contracts from said elongated orientation to said relaxed orientation;

a nonwoven web in contact with, and thereby secured to, said first surface of said elastomeric adhesive backing, said nonwoven web being secured to said elastomeric adhesive backing while said backing is in said elongated orientation, said nonwoven web comprising a multiplicity of fibrous elements comprising filaments that are joined together with inter-fiber bonds at spaced, fixed regions along the length of each of said filaments to define between each pair of fixed regions an unsecured catching region, wherein said fibrous elements comprise those filaments that are shiπed when said backing contracts to said relaxed orientation; and

a second lamina in contact with, and thereby joined to, said second surface of said elastomeric adhesive backing.

3. The female component of Claim 2 wherein said second lamina is joined with said elastomeric adhesive backing while said backing is in said elongated orientation, or said second lamina is joined with said elastomeric adhesive backing after said backing has been paπially relaxed.

4. The female component of Claims 2 or 3 wherein said elastomeric adhesive backing comprises regions of differential elongation.

5. The female component of Claim 2, 3, or 4 wherein said second lamina comprises a second nonwoven web comprising a multiplicity of fibrous elements preferably positioned on said backing essentially peφendicular to said path of response of said elastomeric adhesive backing, said fibrous elements comprising filaments that are joined together with inter-fiber bonds at spaced, fixed regions along the length of each of said filaments to define between each pair of fixed regions an unsecured catching region, wherein said fibrous elements comprise those filaments that are shiπed when said backing contracts to said relaxed orientation, said inter-fiber bonds preferably being aπanged in a diamond-shaped pattem.

6. The female fastening component of any ofthe preceding Claims wherein said filaments are positioned on said backing essentially peφendicular or essentially parallel to said path of response of said elastomeric adhesive backing, or randomly positioned on said elastomeric adhesive backing.

7. The female fastening component of any of the preceding Claims wherein said nonwoven web comprises carded polypropylene filaments.

8. The female fastening component of any ofthe preceding Claims wherein said inter-fiber bonds are arranged in a diamond-shaped pattem.

9. A disposable absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet joined with said topsheet, an absorbent core positioned between said topsheet and said backsheet, and a fastening system for fastening said disposable absorbent article about a wearer, wherein said fastening system comprises the female fastening component of any of the preceding Claims.

10. The disposable absorbent article of Claim 9 further comprising a waistband, wherein said waistband comprises the female fastening component of any of the preceding Claims.