Lightweight high-tensile, high-tear strength bicomponent...

Details Lightweight high-tensile, high-tear strength bicomponent... Lightweight high-tensile, high-tear strength bicomponent...

2005-04-01

2008-10-21

Aftergut, Jeff H (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S167000, C156S181000, C156S296000, C156S309600

Reexamination Certificate

active

07438777

ABSTRACT:
A method of producing a nonwoven fabric comprising spinning a set of bicomponent fibers which include an external fiber component and an internal fiber component. The external fiber enwraps said internal fiber and has a higher elongation to break value than the internal fiber and a lower melting temperature than the internal fiber component. The set of bicomponent fibers are positioned onto a web and thermally bonded to produce a nonwoven fabric.

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Hegde, et al “Bicomponent Fibers”. from the wesite http://web.utk.edu/˜mse/pages/Textiles/Bicomponent%20fibers.htm, Apr. 2004,10 pages.
“Strength Loss in Thermally Bonded Polypropylene Fibers;” Inter Nonwovens Journal, 2000; 9(3); pp. 27-35; by Aparna Chidambaram, Hawthorne Davis and Subhash K. Batra.

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