Composite nonwoven fabric and method of making same

Details Composite nonwoven fabric and method of making same Composite nonwoven fabric and method of making same

B - Operations, Transporting

32

B

B32B 5/26 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2137132

2137132 9325746 PCTABS00028 The invention is directed to a composite nonwoven fabric (10) comprising a nonwoven web (11) of spunbonded substantially continuous thermoplastic filaments, a nonwoven web (14) of thermoplastic strands, and a nonwoven web (13) of thermoplastic meltblown microfibers sandwiched between the nonwoven web of spunbonded substantially continuous filaments and the nonwoven web of thermoplastic strands. An adhesive agent (12) is disposed between the nonwoven web (11) of spunbonded filaments and the nonwoven web (13) of meltblown microfibers and between the nonwoven web (14) of thermoplastic strands and the nonwoven web (13) of meltblown microfibers, adhering the respective nonwoven webs together to form a unitary composite nonwoven fabric. In a preferred embodiment, the composite nonwoven fabric of the invention comprises a nonwoven web of spunbonded substantially continuous polyamide filaments, a nonwoven web of polyamide strands, and a nonwoven web of polyethylene meltblown microfibers sandwiched between the nonwoven web of spunbonded substantially continuous filaments and the nonwoven web of strands.

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