Breathable barrier composite useful as an ideal loop fastener component
AssigneeKimberly-Clark Worldwide, Inc.
InventorsAnn Louise McCormack, William Bela Haffner, Wanda Walton Jackson
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Abstract
A composite material adapted for mechanical fastener use as a loop fastener component with a complementary hook component is made by laminating a film with an amorphous polymer layer to a prebonded nonwoven web under conditions producing laminate bonds corresponding to the prebond locations, and loose filaments or fibers between the bonds. The composite also desirably has a MVTR of at least about 100 g/m.sup.2 /24 hours and a hydrohead of at least about 50 mbar. In use as a component of a disposable personal care product such as a disposable diaper, the loop fastener component may be substantially the entire backing, providing comfort, protection and highly variable fit.
Claims18
A breathable, liquid barrier composite comprising:
- a prebonded nonwoven having a pattern of spaced apart bonds with unbonded fibers or filaments between said bonds,
- a film bonded to said nonwoven at locations corresponding to said pattern of spaced apart bonds and otherwise substantially unbonded to said nonwoven,
- wherein said composite has a moisture vapor transmission rate of at least about 100 g/m.sup.2 /24 hours and a hydrohead value of at least about 50 mbar of water.
Dependencies are inferred from the claim text.