B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/115, 28/12,
B32B 5/04 (2006.01) B29C 51/00 (2006.01) B29C 51/14 (2006.01) B29C 70/08 (2006.01) B29C 70/20 (2006.01) B32B 5/26 (2006.01) D04H 1/00 (2006.01) D04H 1/04 (2006.01) D04H 1/46 (2006.01) D04H 13/00 (2006.01) B29C 51/08 (2006.01)
Patent
CA 2011515
A three-dimensional non-woven fabric with a thermally activated adhesive surface well suited for use as a facing fabric for covering a fibrous mat. The fabric comprises two adjoining fiber layers, namely an adhesive layer including bond-forming fibers fusible at a predetermined temperature and a facing layer of fibers having a considerably higher melting temperature than the bond- forming fibers. The fibers of both layers are mechanically engaged one with another and are arranged flat-wise in bundles interconnected at junctures by protuberant fiber packings disposed in a staggered relationship throughout the fabric. Bond-forming fibers are concentrated in the apex portions of the fiber packings to form the thermally activated adhesive surface. The invention also extends to a process for manufacturing the three-dimensional non-woven fabric, based on the so- called "rosebud" technique for producing foraminous webs. The invention further comprehends a molded fibrous mat article with a non-woven fabric facing layer, and a method for producing the article.
Fetherstonhaugh & Co.
Johnson & Johnson Inc.
LandOfFree
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