Composite elastic necked-bonded material
AssigneeKimberly-Clark Corporation
InventorMichael T. Morman
Life of this patent
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Abstract
The present invention provides a composite elastic necked-bonded material including at least one necked material joined to at least one elastic sheet. The composite elastic necked-bonded material is stretchable in a direction generally parallel to the direction of constriction or necking of the necked material. Also disclosed is a method of producing a composite elastic necked-bonded material by necking a neckable material and then joining the necked material to an elastic sheet.
Claims19
A composite elastic necked-bonded material formed by a process comprising:
- providing at least one neckable nonelastic material;
- applying a tensioning force to the neckable nonelastic material to neck said material;
- superposing the necked nonelastic material on an elastic sheet;
- and
- joining said tensioned, necked nonelastic material and said elastic sheet at least at two places.
A composite elastic necked-bonded material formed by a process comprising:
- providing at least one neckable nonelastic material, said neckable material comprising a web selected from the group consisting of a bonded carded web of fibers, a web of spunbonded fibers, a web of meltblown fibers, and a multilayer material including at least one of said webs;
- applying a tensioning force to the neckable nonelastic material to neck said material;
- superposing the necked nonelastic material on an elastic sheet, said elastic sheet comprising an elastomeric polymer selected from the group consisting of elastic polyesters, elastic polyurethanes, elastic polyamides, and elastic A-B-A' block copolymers wherein A and A' are the same or different thermoplastic polymer, and wherein B is an elastomeric polymer block, and
- joining said tensioned, necked nonelastic material and said elastic sheet at least at two places.
A composite elastic necked-bonded material formed by a process comprising:
- providing at least one neckable nonelastic nonwoven web selected from the group consisting of a bonded carded web of fibers, a web of spunbonded fibers, a web of meltblown fibers, and a multilayer material including at least one of said webs;
- applying a tensioning force to the neckable nonelastic nonwoven web to neck said material;
- superposing the necked material on a pressure sensitive elastomer adhesive sheet;
- and
- joining said tensioned, necked material and said pressure sensitive elastomer adhesive sheet by winding them together on to a wind-up roll so that the tensioning force from said necked material activates the pressure sensitive elastomer adhesive sheet and bonds the necked material to the sheet.
Dependencies are inferred from the claim text.