EP1402099A1 - Verfahren zur herstellung eines verfestigten nonwoven aus zumindest teilweise mikrofeinen endlosfasern und nonwoven nach diesem verfahren - Google Patents

Verfahren zur herstellung eines verfestigten nonwoven aus zumindest teilweise mikrofeinen endlosfasern und nonwoven nach diesem verfahren

Info

Publication number
EP1402099A1
EP1402099A1 EP02735401A EP02735401A EP1402099A1 EP 1402099 A1 EP1402099 A1 EP 1402099A1 EP 02735401 A EP02735401 A EP 02735401A EP 02735401 A EP02735401 A EP 02735401A EP 1402099 A1 EP1402099 A1 EP 1402099A1
Authority
EP
European Patent Office
Prior art keywords
fibers
microfibers
continuous
spun
nonwoven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02735401A
Other languages
English (en)
French (fr)
Other versions
EP1402099B1 (de
Inventor
Lüder GERKING
Gerold Fleissner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Nonwovens GmbH
Original Assignee
Fleissner GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7687382&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1402099(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Publication of EP1402099A1 publication Critical patent/EP1402099A1/de
Application granted granted Critical
Publication of EP1402099B1 publication Critical patent/EP1402099B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/016—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/62—Including another chemically different microfiber in a separate layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/621—Including other strand or fiber material in a different layer not specified as having microdimensions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/626—Microfiber is synthetic polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]

Definitions

  • DE-A-199 29 709 discloses a fiber production process in which threads are spun out of a plurality of spinning bores from a polymer melt of only one specific polymer and the spun threads are distorted by essentially cold gas streams accelerated to high speed by means of an acceleration or Laval nozzle are and each thread receives a hydrostatic internal pressure that is greater than the surrounding gas pressure before solidification due to further manufacturing conditions, such that each thread bursts in the longitudinal direction and fuses into a large number of fine endless threads. These endless microfibers can then be continuously laid down to form a nonwoven of any width.
  • the threads are very fine, they have an average diameter of about 2 ⁇ m and are essentially endless even with this diameter. Since they are not stretched by a hot air stream as in the meltblown process, they are not thermally damaged and have high strength.
  • the threads can be made from any polymer or from solutions using the Lyocell process.
  • Microfibers are also so-called split fibers. They arise from threads that are spun from several polymers and then z. B. be split by water jets. However, this microfiber manufacturing process is more complex. There is a need to consolidate the microfibers produced as initially defined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Multicomponent Fibers (AREA)

Description

Verfahren zur Herstellung eines verfestigten Nonwoven aus zumindest teilweise mikrofeinen Endlosfasern und Nonwoven nach diesem Verfahren
Durch die DE-A-199 29 709 ist ein Faserherstellungsverfahren bekannt, bei dem aus einer Polymerschmelze nur eines bestimmten Polymers Fäden aus einer Vielzahl von Spinnbohrungen ausgesponnen und die ausgesponnenen Fäden durch mittels einer Beschleunigungs- wie Lavaldüse auf hohe Geschwindigkeit beschleunigte im wesentlichen kalte Gasströme verzogen werden und jeder Faden aufgrund von weiteren Herstellungsbedingungen vor dem Erstarren einen hydrostatischen Innendruck erhält, der größer ist als der umgebende Gasdruck, derart, dass jeder Faden in Längsrichtung platzt und sich in eine Vielzahl feiner Endlosfäden aufspleißt. Diese endlosen Mikrofasern können anschließend fortlaufend zu einem Nonwoven beliebiger Breite abgelegt werden.
Dieses Faserherstellungsverfahren hat erhebliche Vorteile gegenüber dem Stand der Technik nach dem Meltblownverfahren, mit dem auch Mikrofasern hergestellt werden. Die Fäden sind sehr fein, sie haben im Mittel einen Durchmesser von etwa 2 μm und sind selbst bei diesem Durchmesser im wesentlichen endlos. Da sie nicht wie beim Meltblownverfahren durch einen heißen Luftstrom verstreckt werden, sind sie thermisch nicht geschädigt und haben eine hohe Festigkeit. Die Fäden können aus jeglichem Polymer aber auch aus Lösungen nach dem Lyocell-Verfahren hergestellt werden.
Mikrofasern sind auch sogenannte Splitfasern. Sie entstehen aus Fäden, die aus mehreren Polymeren gesponnen werden und anschließend z. B. durch Wasserstrahlen gesplittet werden. Dieses Mikrofaserherstellungsverfahren ist aber aufwendiger. Es besteht die Notwendigkeit der Verfestigung der wie anfangs definiert hergestellten Mikrofasern.
Es ist die Idee der Erfindung dieses mit der hydrodynamischen Vernadelung zu bewirken. Diese ist hier besonders wirkungsvoll, weil diese so hergestellten sehr dünnen Endlosfasern leicht durch die Wasservernadelung verlagert und trotzt ihrer Endlosigkeit mit den benachbarten Fasern verschlungen werden können. Es entsteht ein abriebfestes Produkt, was auch gilt, wenn das Vlies nass geworden ist. Das Produkt ist nicht nur abriebfest, sondern es entsteht auch kein Pillingeffekt, da es sich um verschlungene Endlosfasern handelt, die ansonsten bei normalen Endlosfasern wegen ihrer Längsfestigkeit nur schwerlich mit Wasser verlagert werden können.
Die Anwendung des hydrodynamischen Vernadelns ist auf diesem Gebiet bereits mehrfach bekannt. Es wird bezüglich der schmelzgeblasenen Fasern auf die EP-A-0 333 228 und bezüglich Splitfasern auf die US-A-4 233 349 verwiesen. Im vorliegenden Fall ist die Anwendung der Wasservernadelung besonders vorteilhaft, weil das Produkt trotzt der endlosen Fasern mit Wasserstrahlen fest vernadelt werden kann, derart, dass ein Pillingeffekt beim späteren Benutzen des verfestigten Nonwoven nicht auftritt. Das Vlies hat eine weiche ganz gleichmäßige Oberfläche und kann deshalb für viele Anwendungszwecke in der Industrie mit großem Vorteil Verwendung finden.

Claims

P a t e n t a n s p r ü c h e :
1. Verfahren zur Herstellung eines verfestigten Nonwoven aus zumindest teilweise mikrofeinen Endlosfasern aus schmelzbaren Polymeren, a) bei dem eine Polymerschmelze nur eines bestimmten Polymers aus einer Vielzahl von Spinnbohrungen ausgesponnen und die ausgesponnenen Fäden durch mittels einer Beschleunigungs- wie Lavaldüse auf hohe Geschwindigkeit beschleunigte im wesentlichen kalte Gasströme verzogen werden und jeder Faden aufgrund von weiteren Herstellungsbedingungen vor dem Erstarren einen hydrostatischen Innendruck erhält, der größer ist als der umgebende Gasdruck, derart, dass jeder Faden in Längsrichtung platzt und sich in eine Vielzahl feiner Endlosfäden aufspleißt, b) kontinuierliches Ablegen dieser Mikrofasern zu einem Nonwoven beliebiger Breite c) und fortlaufendes Beaufschlagen dieses Vlieses mit hydrodynamischen Wasserstrahlen zum Verwirren der Mikrofasern untereinander, zum Verfestigen des Nonwoven aus den längs gespleißten Endlosfasern d) und Vermischen und Verbinden ggf. mit andern Fasern, die unter den Mikrofasern bereits vorgelegt sind und/oder auf die Mikrofasern anschließend abgelegt werden.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass die anderen Fasern aus natürlichen oder weiteren synthetischen Fasern - wie Stapel- und/oder Endlosfasern - bestehen.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die anderen Fasern aus Wood Pulpfasern ggf. zusammen mit den weiteren synthetischen Fasern bestehen.
4. Verfestigtes Nonwoven, das zumindest teilweise aus Mikrofasern besteht, a) die aus einer Polymerschmelze nur eines bestimmten Polymers aus einer Vielzahl von Spinnbohrungen ausgesponnen und die ausgesponnenen Fäden durch mittels einer Beschleunigungs- wie Lavaldüse auf hohe Geschwindigkeit beschleunigte Gasströme verzogen werden und jeder Faden aufgrund von weiteren Herstellungsbedingungen vor dem Erstarren einen hydrostatischen Innendruck erhält, der größer ist als der umgebende Gasdruck, derart, dass jeder Faden in Längsrichtung platzt und sich in eine Vielzahl feiner Endlosfäden aufspleißt, b) und alleine oder zusammen mit anderen Fasern wie auch Stapel- und/oder Endlosfasern mittels einer hydrodynamischen Vernadelung verfestigt sind.
5. Nonwoven nach Anspruch 4, dadurch gekennzeichnet, dass die Mikrofasern auf einer Trägerschicht aus stabileren Chemiefasern abgelegt sind und als Trennschicht für eine auf die Mikrofasern abgelegte Wood Pulpschicht dienen.
EP02735401A 2001-06-07 2002-06-04 Verfahren zur herstellung eines verfestigten nonwoven aus zumindest teilweise mikrofeinen endlosfasern und nonwoven nach diesem verfahren Revoked EP1402099B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10127471 2001-06-07
DE10127471A DE10127471A1 (de) 2001-06-07 2001-06-07 Verfahren zur Herstellung eines verfestigten Nonwoven aus zumindest teilweise mikrofeinen Endlosfilamenten und Nonwoven nach diesem Verfahren
PCT/EP2002/006075 WO2002099176A1 (de) 2001-06-07 2002-06-04 Verfahren zur herstellung eines verfestigten nonwoven aus zumindest teilweise mikrofeinen endlosfasern und nonwoven nach diesem verfahren

Publications (2)

Publication Number Publication Date
EP1402099A1 true EP1402099A1 (de) 2004-03-31
EP1402099B1 EP1402099B1 (de) 2005-11-30

Family

ID=7687382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02735401A Revoked EP1402099B1 (de) 2001-06-07 2002-06-04 Verfahren zur herstellung eines verfestigten nonwoven aus zumindest teilweise mikrofeinen endlosfasern und nonwoven nach diesem verfahren

Country Status (9)

Country Link
US (2) US20040222556A1 (de)
EP (1) EP1402099B1 (de)
JP (1) JP2004527673A (de)
CN (1) CN1330813C (de)
AT (1) ATE311493T1 (de)
DE (2) DE10127471A1 (de)
DK (1) DK1402099T3 (de)
ES (1) ES2254689T3 (de)
WO (1) WO2002099176A1 (de)

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DE20308475U1 (de) 2003-05-16 2003-09-18 Corovin Gmbh, 31224 Peine Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten
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WO2002099176A1 (de) 2002-12-12
CN1330813C (zh) 2007-08-08
EP1402099B1 (de) 2005-11-30
ES2254689T3 (es) 2006-06-16
CN1513070A (zh) 2004-07-14
DK1402099T3 (da) 2006-03-27
US20040222556A1 (en) 2004-11-11
JP2004527673A (ja) 2004-09-09
DE50205125D1 (de) 2006-01-05
ATE311493T1 (de) 2005-12-15
DE10127471A1 (de) 2002-12-12
US20070004304A1 (en) 2007-01-04

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