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US 6,624,100 B1Granted
Microfiber nonwoven web laminates
AssigneeKimberly-Clark Worldwide, Inc.
InventorRichard Daniel Pike
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Abstract
The present invention provides a web containing superfine microfibers. The web contains a blend of a first group of split microfibers which contains a first polymer component and a second group of split microfibers which contains a second polymer component, wherein at least one of the polymer components is hydrophilic. The invention additionally provides a meltblown fiber web having at least two groups of fibers, wherein each group of the fibers has a distinct cross-sectional configuration.
Claims17
A multilayer laminate comprising:
- a first layer, said first layer comprising a nonwoven web of continuous, molecularly oriented filaments;
- and
- a second layer fixedly attached to said first layer, said second layer comprising a nonwoven web of meltblown fibers wherein said meltblown fibers comprise a mixture of first meltblown fibers and second meltblown fibers, said first meltblown fibers comprising a first polymer and said second meltblown fibers comprising a second polymer and further wherein said first polymer is immiscible with said second polymer and the first meltblown fibers and the second meltblown fibers are split from common unitary fibers.
Dependencies are inferred from the claim text.