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    BONDED COMPOSITE NONWOVEN WEB AND PROCESS BONDED COMPOSITE NONWOVEN WEB AND PROCESS
    31.
    发明专利
    BONDED COMPOSITE NONWOVEN WEB AND PROCESS BONDED COMPOSITE NONWOVEN WEB AND PROCESS 未知

    公开(公告)号：CA2079246A1

    公开(公告)日：1993-03-31

    申请号：CA2079246

    申请日：1992-09-28

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： ALLAN JOHN L ,  GESSNER SCOTT L ,  ZIMMERMAN GUY S JR ,  AUSTIN JARED A ,  NEWKIRK DAVID D

    IPC: D04H1/54 ,  D04H1/56 ,  D04H13/00 ,  B32B5/08

    Abstract: BONDED COMPOSITE NONWOVEN WEB AND PROCESS of the Invention The invention is directed to nonwoven fabrics including at least one fibrous web which preferably includes staple or natural fibers, having a bonding layer of thermoplastic material disposed primarily within a substantially discrete cross-sectional portion of the web and below at least one surface of the web. The layer of bonding material comprises a thermally fused thermoplastic web derived from a layer of thermoplastic meltblown fibers. The layer of bonding material can be an elastomeric layer or a nonelastomeric layer thus providing a fabric having elastic or non-elastic properties. The bonding layer adds strength and optionally elastic properties, to the fabric and anchors fibers of the fibrous layer in the fabric. Advantageously, the fabric of the invention is made by hydroentangled a layered web including a first fibrous layer and a layer of meltblown fibers and thermally treating the hydroentangled layered web sufficiently to fuse the thermoplastic meltblown fibers. 62560

    34.
    发明专利
    未知

    公开(公告)号：AT164548T

    公开(公告)日：1998-04-15

    申请号：AT95903677

    申请日：1994-12-01

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： LICKFIELD DEBORAH K ,  BERMAN MARK H S ,  HYSLOP ROBERT F ,  OLESZCZUK ANDREW R ,  GESSNER SCOTT L ,  AUSTIN JARED A

    IPC: B32B5/26 ,  D01F8/14 ,  D04H3/16 ,  D04H13/00 ,  D06M17/00

    Abstract: The invention is directed to a composite nonwoven fabric comprising first and second nonwoven webs of spunbonded substantially continuous thermoplastic filaments, and a nonwoven hydrophobic microporous web of thermoplastic meltblown microfibers sandwiched between the first and second nonwoven webs. The filaments of the nonwoven spunbond webs are formed of continuous multiconstituent filaments which include a lower melting gamma radiation stable polyethylene polymer component and one or more higher melting gamma radiation stable polymer constituents, wherein a substantial portion of the surfaces of the multiconstituent filaments consists of the lower melting gamma radiation stable polyethylene constituent. The nonwoven hydrophobic microporous web is formed from a gamma radiation stable polyethylene polymer. The webs are bonded together to form the composite nonwoven fabric by discrete point bonds in which the polyethylene constituent of said multiconstituent filaments and the polyethylene of said third nonwoven web are fused together.

    Composite nonwoven fabrics
    36.
    发明专利
    Composite nonwoven fabrics 未知

    公开(公告)号：AU6691296A

    公开(公告)日：1997-03-12

    申请号：AU6691296

    申请日：1996-08-07

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： GESSNER SCOTT L ,  TRIMBLE LLOYD E

    IPC: B32B5/02 ,  D04H13/00 ,  A61F13/15

    Abstract: The present invention provides composite nonwoven fabric laminates and processes for producing such. The fabric is comprised of a web of thermoplastic filaments laminated to at least one other web. Preferably, the filaments are spunbonded continuous polyolefin filaments which have an oxidatively degraded outer sheath portion to promote better interfilamentary bonding and improved fabric laminate strength. In a preferred embodiment, two outer nonwoven webs comprise oxidatively degraded spunbonded filaments and are positioned around and laminated to a web of meltblown microfibers thus forming an spunbond/meltblown/spunbond fabric. Additionally, a stretch compatible fabric may be formed in which a web of oxidatively degraded filaments is laminated to an elastic web. The fabrics of the invention may be advantageously used in numerous applications such as medical garments and disposable adsorbent products.

    Composite nonwoven fabric and articles produced therefrom
    39.
    发明专利
    Composite nonwoven fabric and articles produced therefrom 未知

    公开(公告)号：AU1265595A

    公开(公告)日：1995-06-27

    申请号：AU1265595

    申请日：1994-12-01

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： LICKFIELD DEBORAH K ,  BERMAN MARK H S ,  HYSLOP ROBERT F ,  OLESZCZUK ANDREW R ,  GESSNER SCOTT L ,  AUSTIN JARED A

    IPC: B32B5/26 ,  D01F8/14 ,  D04H3/16 ,  D04H13/00 ,  D06M17/00

    Abstract: The invention is directed to a composite nonwoven fabric comprising first and second nonwoven webs of spunbonded substantially continuous thermoplastic filaments, and a nonwoven hydrophobic microporous web of thermoplastic meltblown microfibers sandwiched between the first and second nonwoven webs. The filaments of the nonwoven spunbond webs are formed of continuous multiconstituent filaments which include a lower melting gamma radiation stable polyethylene polymer component and one or more higher melting gamma radiation stable polymer constituents, wherein a substantial portion of the surfaces of the multiconstituent filaments consists of the lower melting gamma radiation stable polyethylene constituent. The nonwoven hydrophobic microporous web is formed from a gamma radiation stable polyethylene polymer. The webs are bonded together to form the composite nonwoven fabric by discrete point bonds in which the polyethylene constituent of said multiconstituent filaments and the polyethylene of said third nonwoven web are fused together.

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