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公开(公告)号：BR9609935A
公开(公告)日：1999-05-11
申请号：BR9609935
申请日：1996-08-07
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GESSNER SCOTT L , TRIMBLE LLOYD E
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.
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公开(公告)号：ES2092304T3
公开(公告)日：1996-11-16
申请号：ES93911563
申请日：1993-03-29
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： TRIMBLE LLOYD E , ZELDIN LEON M , GRUBBS WILLIAM J , FRANCIS JOHN V
Abstract: A slot draw attenuator apparatus and method are provided for producing webs of spunbonded thermoplastic filaments having improved cover even at low basis weights. The filaments are introduced to a slot draw attenuator having corona electrodes mounted in an elongate insulator bar and staggered and spaced along one wall of the attenuator slot near the exit end thereof. The corona electrodes are electrically connected to a high voltage source. The opposing wall of the slot is grounded. A corona is created in the attenuator slot so that the filaments are charged as they exit the attenuator. The electrostatic charge induces repelling forces in the filaments so that the filaments spread before they are randomly deposited upon a forming belt.
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公开(公告)号：AT140494T
公开(公告)日：1996-08-15
申请号：AT93911563
申请日：1993-03-29
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： TRIMBLE LLOYD E , ZELDIN LEON M , GRUBBS WILLIAM J , FRANCIS JOHN V
Abstract: A slot draw attenuator apparatus and method are provided for producing webs of spunbonded thermoplastic filaments having improved cover even at low basis weights. The filaments are introduced to a slot draw attenuator having corona electrodes mounted in an elongate insulator bar and staggered and spaced along one wall of the attenuator slot near the exit end thereof. The corona electrodes are electrically connected to a high voltage source. The opposing wall of the slot is grounded. A corona is created in the attenuator slot so that the filaments are charged as they exit the attenuator. The electrostatic charge induces repelling forces in the filaments so that the filaments spread before they are randomly deposited upon a forming belt.
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公开(公告)号：NO943813L
公开(公告)日：1994-10-07
申请号：NO943813
申请日：1994-10-07
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： TRIMBLE LLOYD E , GRUBBS WILLIAM J , ZELDIN LEON M , FRANCIS JOHN V
Abstract: A slot draw attenuator apparatus and method are provided for producing webs of spunbonded thermoplastic filaments having improved cover even at low basis weights. The filaments are introduced to a slot draw attenuator having corona electrodes mounted in an elongate insulator bar and staggered and spaced along one wall of the attenuator slot near the exit end thereof. The corona electrodes are electrically connected to a high voltage source. The opposing wall of the slot is grounded. A corona is created in the attenuator slot so that the filaments are charged as they exit the attenuator. The electrostatic charge induces repelling forces in the filaments so that the filaments spread before they are randomly deposited upon a forming belt.
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公开(公告)号：AU4044593A
公开(公告)日：1993-11-18
申请号：AU4044593
申请日：1993-03-29
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： TRIMBLE LLOYD E , ZELDIN LEON M , GRUBBS WILLIAM J , FRANCIS JOHN V
Abstract: A slot draw attenuator apparatus and method are provided for producing webs of spunbonded thermoplastic filaments having improved cover even at low basis weights. The filaments are introduced to a slot draw attenuator having corona electrodes mounted in an elongate insulator bar and staggered and spaced along one wall of the attenuator slot near the exit end thereof. The corona electrodes are electrically connected to a high voltage source. The opposing wall of the slot is grounded. A corona is created in the attenuator slot so that the filaments are charged as they exit the attenuator. The electrostatic charge induces repelling forces in the filaments so that the filaments spread before they are randomly deposited upon a forming belt.
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Patent Agency Ranking
公开(公告)号：AU6690596A
公开(公告)日：1997-03-12
申请号：AU6690596
申请日：1996-08-07
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GESSNER SCOTT L , TRIMBLE LLOYD E
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公开(公告)号：BR9610213A
公开(公告)日：1999-07-06
申请号：BR9610213
申请日：1996-08-07
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GESSNER SCOTT L , TRIMBLE LLOYD E
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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
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.
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公开(公告)号：MX9801186A
公开(公告)日：1998-07-31
申请号：MX9801186
申请日：1998-02-11
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GESSNER SCOTT L , TRIMBLE LLOYD E
Abstract: La presente invencion provee unidades laminares de tela mixta no tejida y procedimientos para producir las mismas; la tela está compuesta de una cinta de filamentos termoplásticos laminados a por lo menos otra cinta; preferiblemente, los filamentos son filamentos continuos de poliolefina unidos por hilatura que tiene una porcion protectora externa oxidativamente degradada para promover mejor union de filamento interno y esfuerzo mejorado de la unidad laminar de tela; en una modalidad preferida, dos cintas externas no tejidas comprenden filamentos unidos por hilatura oxidativamente degradados y están colocados alrededor de y laminados a una cinta de microfibras sopladas bajo fusion formando así una tela unida por hilatura/soplada bajo fusion/unida por hilatura; además, se puede formar una tela compatible con el estiramiento en donde una cinta de filamentos oxidativamente degradados se lamina a una cinta elástica; las telas de la invencion pueden usarse ventajosamente en numerosas aplicaciones tales como prendas médicas y productos absorbentes desechables.
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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
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.
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