Nonwoven fabric with characteristics similar to woven and...

Details Nonwoven fabric with characteristics similar to woven and... Nonwoven fabric with characteristics similar to woven and...

2007-03-20

2007-03-20

Rossi, Jessica (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S167000, C156S168000, C156S180000, C156S290000, C156S296000, C264S172110, C264S172170, C264S172190, C019S299000

Reexamination Certificate

active

10159284

ABSTRACT:
A nonwoven fabric having characteristics resembling woven and knitted fabrics is produced by extruding a plurality of plural component fibers, where each fiber includes first and second polymer components with the first polymer component having a degree of shrinkage when subjected to heat. A nonwoven web of the extruded fibers is formed on a web forming surface and bonded. The bonded web of fibers are post-bond treated to shrink at least the first polymer component and separate at least a portion of the second polymer component from the first polymer component utilizing any combination of heat, mechanical agitation and dissolving of fiber components. The resultant nonwoven fabric has a texture, drape and feel of woven and knitted fabrics.

REFERENCES:
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patent: 6371749 (2002-04-01), Thompson et al.
patent: 6620485 (2003-09-01), Benson et al.
patent: WO 99/48668 (1999-09-01), None
patent: WO 00/20178 (2000-04-01), None

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