Composite nonwoven fabrics

Details Composite nonwoven fabrics Composite nonwoven fabrics

1995-08-11

1998-03-31

Cannon, James C.

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Scrim

Woven scrim

156 624, 156 626, 1563084, 264 83, 2641725, 26421114, 26421117, 264237, 428373, 442 36, 442 57, 442328, 442329, 442364, 442381, 442382, 442389, 442392, 442398, 442399, 442409, B32B 526, B32B 710, B32B 2508

Patent

active

057338221

ABSTRACT:
The present invention provides composite nonwoven fabric laminates and processes for producing such. The fabric is comprised of a web of thermoplastic filaments laminated to at least one other web. Preferably, the filaments are spunbonded continuous polyolefin filaments which have an oxidatively degraded outer sheath portion to promote better interfilamentary bonding and improved fabric laminate strength. In a preferred embodiment, two outer nonwoven webs comprise oxidatively degraded spunbonded filaments and are positioned around and laminated to a web of meltblown microfibers thus forming an spunbond/meltblown/spunbond fabric. Additionally, a stretch compatible fabric may be formed in which a web of oxidatively degraded filaments is laminated to an elastic web. The fabrics of the invention may be advantageously used in numerous applications such as medical garments and disposable adsorbent products.

REFERENCES:
patent: 4842922 (1989-06-01), Krupp et al.
patent: 5108827 (1992-04-01), Gessner
patent: 5281378 (1994-01-01), Kozulla
patent: 5318735 (1994-06-01), Kozulla
patent: 5431994 (1995-07-01), Kozulla
patent: 5554435 (1996-09-01), Gupta et al.

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