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公开(公告)号：MX9302245A
公开(公告)日：1994-08-31
申请号：MX9302245
申请日：1993-04-16
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GESSNER SCOTT L
Abstract: A nonwoven filamentary web having high loft is produced by extruding a molten thermoplastic polymer or polymer blend through a spinneret to form continuous filaments while maintaining extrusion conditions which induce melt-fracture of the extrudate; attenuating the thus extruded melt-fractured filaments to obtain filamentary material having a crimped structure; and depositing the melt-fractured filamentary material on a collection surface and forming a web therefrom.
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公开(公告)号：AU6164894A
公开(公告)日：1994-08-15
申请号：AU6164894
申请日：1994-01-24
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GESSNER SCOTT L , BERMAN MARK H S
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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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公开(公告)号：IL105960D0
公开(公告)日：1993-10-20
申请号：IL10596093
申请日：1993-06-09
Applicant: FIBERWEB NORTH AMERICA INC
Abstract: The invention is directed to a composite nonwoven fabric comprising a nonwoven web of spunbonded substantially continuous thermoplastic filaments, a nonwoven web of thermoplastic strands, and a nonwoven web of thermoplastic meltblown microfibers sandwiched between the nonwoven web of spunbonded substantially continuous filaments and the nonwoven web of thermoplastic strands. An adhesive agent is disposed between the nonwoven web of spunbonded filaments and the nonwoven web of meltblown microfibers and between the nonwoven web of thermoplastic strands and the nonwoven web 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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公开(公告)号：AU7491291A
公开(公告)日：1991-10-21
申请号：AU7491291
申请日：1991-03-20
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： NEWKIRK DAVID D
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Patent Agency Ranking
公开(公告)号：CA2157757C
公开(公告)日：2001-12-04
申请号：CA2157757
申请日：1993-08-02
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GESSNER SCOTT L , NEWKIRK DAVID L , THOMASON MICHAEL M , REEDER JAMES O , QUANTRILLE THOMAS E
Abstract: The invention provides composite elastic nonwoven fabrics and the process of making them. The elastic nonwoven composite fabrics of the invention are formed from the combination of a plurality of cooperati ve elastic layers including an elastomeric meltblown web and an elastomeric spunbonded web. The elastomeric layers are joined together in a unitary elastic fabric structure to provide a composite having a desirable combination of elastic and barrier properties.
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公开(公告)号：BR9710746A
公开(公告)日：2000-01-11
申请号：BR9710746
申请日：1997-07-22
Applicant: FIBERWEB NORTH AMERICA INC
Inventor： GILLESPIE JAY DARRELL , CHRISTOPHER DAVID BRUCE , THOMAS HAROLD EDWARD , PHILIPS JOHN HENRY , GESSNER SCOTT LOUIS , TRIMBLE LLOYD EDWIN , AUSTIN JARED ASHER
IPC: A61F13/511 , A61F13/15 , A61F13/49 , A61L15/00 , B01D39/00 , D01F8/04 , D04H3/02 , D04H3/14 , D04H3/16
Abstract: Multicomponent thermoplastic continuous filaments are provided, including hollow core multicomponent filaments. The filaments are at least partially splittable into smaller filaments in the absence of mechanical treatment or application of high pressure water jets. The surface energy of the components can be controlled to control separation of the multi-component filaments. Sub-denier and micro-denier filaments of low orientation can be produced from relatively high molecular weight polymers to produce nonwovens of surprising strength, barrier, and cover.
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公开(公告)号：AR007953A1
公开(公告)日：1999-11-24
申请号：ARP970103284
申请日：1997-07-22
Applicant: FIBERWEB NORTH AMERICA INC
IPC: A61F13/511 , A61F13/15 , A61F13/49 , A61L15/00 , B01D39/00 , D01F8/04 , D04H3/02 , D04H3/14 , D04H3/16
Abstract: Filamentos contínuos de multicomponentes termoplásticos, incluyendo filamentos con centro vacíos de multicomponentes. Los filamentos son, por lomenos, separables en filamentos mucho más pequenos sin el uso de medios mecánicos o la aplicación dechorros de agua a presión fuerte. La energía de lasuperficie de los componentes puede ser controlada por medio de un control de la separación de los filamentos de los multicomponentes. Los filamentos micro-denier y los sub-denier, de orientaciónbaja pueden ser producidos a partir de polímeros con peso molecular relativamente alto para producir muestas notramadas con una resistencia, capacidad de barrera y cobertura sorprendentes.
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公开(公告)号：IL111910A
公开(公告)日：1998-08-16
申请号：IL11191094
申请日：1994-12-07
Applicant: FIBERWEB NORTH AMERICA INC
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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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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