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    TELA NO TEJIDA DE FILAMENTOS CONTINUOS.
    61.
    发明专利
    TELA NO TEJIDA DE FILAMENTOS CONTINUOS. 未知

    公开(公告)号：MX9801185A

    公开(公告)日：1998-07-31

    申请号：MX9801185

    申请日：1998-02-11

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： GESSNER SCOTT L ,  TRIMBLE LLOYD E

    IPC: D01F6/46 ,  D04H3/14 ,  D01F06/46 ,  D04H03/14

    Abstract: La presente invencion provee un método para producir una tela no tejida de filamento continuo bajo condiciones que modifican las características de superficie de los filamentos y la tela formada mediante el procedimiento; una mezcla de polímeros termoplástico, en la cual por lo menos uno de ellos es un polímero de poliolefina y su mayor parte contiene un componente de polímero de baja velocidad de flujo en estado fundido, es extruida a través de un dado caliente bajo condiciones que originan la oxidacion controlada de la superficie de los filamentos de por lo menos un componente, de modo que son capaces de unirse eficientemente; durante su hilatura, los filamentos continuos exhiben buenas propiedades de estiramiento y buena distribucion de filamento sobre la superficie de recoleccion; de preferencia, los filamentos son estirados hasta un denier fino (es decir, de 5 o menos); la tela de filamento continuo correspondiente posee propiedades de resistencia convenientes, como resultado de alta resistencia de union entre los filamentos.

    64.
    发明专利
    未知

    公开(公告)号：BR9305793A

    公开(公告)日：1997-02-18

    申请号：BR9305793

    申请日：1993-01-22

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： QUANTRILLE THOMAS E ,  AUSTIN JARED A ,  GESSNER SCOTT L

    IPC: D01G25/00 ,  D04H1/48 ,  D04H1/70 ,  D04H13/00

    Abstract: PCT No. PCT/US93/00566 Sec. 371 Date Sep. 17, 1993 Sec. 102(e) Date Sep. 17, 1993 PCT Filed Jan. 22, 1993.The invention provides elastic fabrics which are substantially non-extensible in the machine direction and have substantial elastic properties in the cross-machine direction. The process stable fabrics of the invention include a net and a fibrous layer which are secured together. The net is composed of a plurality of continuous machine direction strands and a plurality of cross-direction strands. The machine direction strands are substantially non-extensible and the cross-direction strands are substantially elastic. The fabrics of the invention can be manufactured and processed more readily than fabrics which are elastic in both the machine direction and the cross-machine direction.

    68.
    发明专利
    未知

    公开(公告)号：DE69021042T2

    公开(公告)日：1995-11-30

    申请号：DE69021042

    申请日：1990-11-01

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： ZELDIN LEON ,  LAMKIN RONALD ,  WERNER JOSEPH

    IPC: D01D5/096 ,  D01G25/00 ,  D02J1/18 ,  D04H3/03 ,  D04H3/12 ,  D04H3/16 ,  E04B1/36 ,  E04H9/02

    Abstract: A method and apparatus for providing uniformly distributed filaments from a spun filament bundle and a process for forming spunbonded fabric having superior uniformity and a favorable ratio between machine and cross direction tensile strengths. The apparatus includes a fiber transfer tube and a pair of adjustable deflector plates. The deflector plates form a channel having a tapering width for transporting the filaments in a stream of high velocity air. The apparatus may also include an electrostatic charging means for applying an electrostatic charge to each individual filament after it exits the channel. The method for providing uniformly distributed filaments includes a first stage of separating the filament bundle by the high velocity stream of air and may also include a second stage of electrostatically charging the filaments to achieve a uniform filament separation. The process for forming spunbonded fabric enables a fabric to be produced having a machine direction to cross direction tensile strength ratio less than about 1.5.

    69.
    发明专利
    未知

    公开(公告)号：BR9206786A

    公开(公告)日：1995-10-31

    申请号：BR9206786

    申请日：1992-11-19

    Applicant: FIBERWEB NORTH AMERICA INC

    Inventor： AUSTIN JARED A

    IPC: B32B5/02 ,  B32B27/02 ,  D04H1/54 ,  D04H13/00

    Abstract: The invention is directed to composite nonwoven fabrics comprising a hydrophobic nonwoven web, a nonwoven web of thermoplastic meltblown microfibers and a hydrophilic nonwoven web comprising staple fibers. The nonwoven web of thermoplastic meltblown fibers is sandwiched between the hydrophobic nonwoven web and the hydrophilic nonwoven web and all of the layers are thermally bonded together via discontinuous thermal bonds distributed substantially throughout the composite nonwoven fabric.

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