Method for producing a non-woven fabric with a thermally activat

Details Method for producing a non-woven fabric with a thermally activat Method for producing a non-woven fabric with a thermally activat

1994-01-04

1994-11-08

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

156160, 156163, 156242, 156245, 1563082, 264257, 264258, 428284, 428287, 428296, 428298, B32B 310

Patent

active

053625463

ABSTRACT:
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.

REFERENCES:
patent: 2862251 (1958-12-01), Kalwaites
patent: 3033721 (1962-05-01), Kalwaites
patent: 3081501 (1963-03-01), Kalwaites
patent: 3787932 (1974-01-01), Kalwaites
patent: 4002801 (1977-01-01), Knechiges et al.
patent: 4824507 (1989-04-01), D'Amico

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