公开(公告)号：WO9107530A2

公开(公告)日：1991-05-30

申请号：PCT/US9006208

申请日：1990-11-01

Applicant: FIBERWEB NORTH AMERICA INC

Inventor： ZELDIN LEON M ,  LAMKIN RONALD E ,  WERNER JOSEPH E

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

CPC classification number: E04H9/021 ,  D04H3/03 ,  D04H3/16

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.

公开(公告)号：AT125315T

公开(公告)日：1995-08-15

申请号：AT91902564

申请日：1990-11-01

Applicant: FIBERWEB NORTH AMERICA INC

Inventor： ZELDIN LEON M ,  LAMKIN RONALD E ,  WERNER JOSEPH E

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.

公开(公告)号：CA2040434A1

公开(公告)日：1991-05-09

申请号：CA2040434

申请日：1990-11-01

Applicant: FIBERWEB NORTH AMERICA INC

Inventor： ZELDIN LEON M ,  LAMKIN RONALD E ,  WERNER JOSEPH E

IPC: D01D5/096 ,  D01G25/00 ,  D02J1/18 ,  D04H3/03 ,  D04H3/12 ,  D04H3/16 ,  E04B1/36 ,  E04H9/02 ,  D01D7/00 ,  D01D11/04

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.

公开(公告)号：WO9107530A3

公开(公告)日：1991-06-27

申请号：PCT/US9006208

申请日：1990-11-01

Applicant: FIBERWEB NORTH AMERICA INC

Inventor： ZELDIN LEON M ,  LAMKIN RONALD E ,  WERNER JOSEPH E

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

CPC classification number: E04H9/021 ,  D04H3/03 ,  D04H3/16

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.

Abstract translation: 本发明涉及一种用于提供来自纺出的长丝束的均匀分布的长丝的方法和设备以及用于形成纺粘型织物的方法和设备，所述纺粘型织物具有优异的均匀性和良好的纵向和横向拉伸强度比。 该设备包括一个纤维输送管和一对可调节的偏转板。 偏转板形成具有锥形宽度的通道，用于在高速空气流中输送长丝。 该设备还可以包括静电充电装置，用于在每个单丝离开通道之后对其施加静电荷。 用于提供均匀分布的长丝的方法包括通过高速空气流分离长丝束的第一阶段，并且还可以包括对长丝进行静电充电以实现均匀的长丝分离的第二阶段。 形成纺粘织物的方法使织物的生产具有纵向拉伸强度比小于约1.5的织物。