EP1396567A1 - Method of producing a nonwoven web of multicomponent filaments - Google Patents

Method of producing a nonwoven web of multicomponent filaments Download PDF

Info

Publication number
EP1396567A1
EP1396567A1 EP02017894A EP02017894A EP1396567A1 EP 1396567 A1 EP1396567 A1 EP 1396567A1 EP 02017894 A EP02017894 A EP 02017894A EP 02017894 A EP02017894 A EP 02017894A EP 1396567 A1 EP1396567 A1 EP 1396567A1
Authority
EP
European Patent Office
Prior art keywords
filaments
filament
spunbonded web
treatment
heat treatment
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
EP02017894A
Other languages
German (de)
French (fr)
Other versions
EP1396567B1 (en
EP1396567B2 (en
Inventor
Bernd Dr. Kunze
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=31197796&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1396567(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to ES02017894T priority Critical patent/ES2249519T5/en
Priority to DK02017894.3T priority patent/DK1396567T4/en
Priority to EP02017894A priority patent/EP1396567B2/en
Priority to AT02017894T priority patent/ATE310117T1/en
Priority to DE50204950T priority patent/DE50204950D1/en
Priority to CNB031220878A priority patent/CN100507122C/en
Priority to JP2003286550A priority patent/JP2004076249A/en
Priority to MXPA03007026A priority patent/MXPA03007026A/en
Priority to BRPI0302745-7A priority patent/BR0302745B1/en
Priority to US10/636,484 priority patent/US20040055124A1/en
Priority to KR1020030054892A priority patent/KR100566743B1/en
Publication of EP1396567A1 publication Critical patent/EP1396567A1/en
Publication of EP1396567B1 publication Critical patent/EP1396567B1/en
Priority to JP2006003839A priority patent/JP2006152532A/en
Priority to US11/705,807 priority patent/US7850899B2/en
Publication of EP1396567B2 publication Critical patent/EP1396567B2/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10Non-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
    • D04H3/11Non-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
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16Non-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 thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the invention relates to a method for producing a Spunbonded web of multicomponent filaments.
  • - Multi-component filaments means filaments that consist of several consist of different thermoplastic materials and bicomponent filaments means filaments consisting of two consist of different thermoplastic materials.
  • the cross-sectional area of such a filament is thereby partly from a first thermoplastic formed and in part of at least a second thermoplastic Plastic. This distribution of different Plastics usually extends over the entire length of the filament.
  • the invention is the technical problem to provide a method of the type mentioned above, with the spunbonded webs or spunbonded nonwovens can be produced, the excellent mechanical Have properties, in particular a high bulkiness and with those properties especially very are reproducibly adjustable.
  • the invention teaches a method for producing a spunbonded web of multicomponent filaments, wherein the multicomponent filaments are deposited on a support to the spunbonded web, wherein the spunbonded web is solidified by water jet treatment, and wherein the spunbonded web is then subjected to a heat treatment to activate a filament crimp.
  • Filaments means in the context of the invention endless threads thermoplastic material, the spunbonded web be filed. Basically, under the Invention but also shorter fibers for the production of Spunbonded web be used. In that regard, he means Term filaments according to one embodiment also shorter Fibers.
  • bicomponent filaments After a very preferred embodiment of the invention will worked with bicomponent filaments.
  • the bicomponent filaments So there are two different thermoplastic Plastics with different properties, in particular with different expansion behavior or shrinkage behavior. Bicomponent filaments have become especially proven for the process according to the invention.
  • Multi-component filaments used with side-by-side structure are very preferred.
  • Multi-component filaments used with side-by-side structure is very particularly preferred.
  • Bicomponent filaments with side-by-side structure there along the length of the filaments becomes part of the Filament surface formed by a first polymer and the other part of the filament surface of a second Polymer.
  • the use of bicomponent filaments in side-by-side arrangement has become with regard to the solution of technical problem particularly well-tried and surprising, further down mentioned benefits.
  • the multicomponent filaments or bicomponent filaments be with a suitable nozzle head or with a suitable spinnerette made. It lies within the framework of Invention that the exiting filaments are cooled. It is further within the scope of the invention that the Filaments are stretched. Appropriately, the Filaments on an endless revolving filter belt filed tray deposited to spunbonded web.
  • the Spunbonded web subsequently to activate a Filamentk Hurselung subjected to a heat treatment. Due to the different shrinkage behavior of the polymers, from those the multicomponent filaments or the bicomponent filaments exist, arises through the heat treatment or thermal treatment a ripple.
  • the heat treatment as Hot air treatment performed. The rippling of the Filaments in the spunbonded web will be so with help activated by hot air.
  • Hot air treatment means in particular a treatment with air at a temperature about 60 ° C.
  • the invention is based on the finding that with the process according to the invention optimum mechanical properties, in particular a high bulkiness of the spunbonded web can be achieved and adjusted.
  • Special Importance is the combination of hydroentanglement on the one hand and downstream heat treatment, in particular hot air treatment on the other hand to.
  • Have proven particularly in the context of inventive method bicomponent filaments with Side-by-side structure.
  • the invention is the realization underlying that with an inventive Hydroentanglement very reliable and targeted large free filament lengths can be adjusted.
  • the invention differs Method of other known from the prior art Consolidation measures. After solidification with more targeted Setting the free filament lengths is then at the downstream heat treatment, preferably hot air treatment, the filament crimp is activated due to the different expansion properties of the polymers comes about.
  • Free Filament length means by the way the length of a Filament section between two solidification points.
  • Hot air treatment can be a surprisingly high Rippling effect can be achieved and, above all, targeted be set.
  • Fig. 1 shows a in the context of the method according to the invention preferably used bicomponent filament with side-by-side structure.
  • the polymer A is half the cross-sectional area of the Filament and the polymer B forms the other half this cross-sectional area.
  • This arrangement extends preferably over the entire length of the filament. It It is understood that the polymer A or the polymer B also a larger part of the filament cross-sectional area can take.
  • Fig. 1 shows so far only one possible Embodiment of a bicomponent filament with side-by-side structure.
  • the polymers A and B have suitably different shrinkage properties or expansion properties.
  • Fig. 2 shows very schematically a device for Implementation of the method according to the invention.
  • the Filaments 1 are on one as endless circulating Ablegesiebband 2 trained tray for spunbonded web 5 stored.
  • the spunbonded web 5 is on the Ablegesiebband 1 moves in the direction of arrow C.
  • a solidification device 3 a nonwoven bonding takes place Water jet treatment or by treatment with high pressure water jets.
  • the filament crimp is in a heat treatment device 4 activated, in which the spunbonded web 5 with hot air is charged.
  • the device became very much in Fig. 2 simplified and it is understood that more Procedural measures and device components provided or can be interposed.

Landscapes

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

Abstract

In a process to manufacture a non-woven fibrous web from two or more types of fiber, the fibers are released onto a belt where they are exposed to water jets. The web fiber filaments are then curled by exposure to heat. The fibers employed are dual-component side-by-side fibers. The heat treatment is applied by hot air.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung einer Spinnvliesbahn aus Mehrkomponenten-Filamenten. - Mehrkomponenten-Filamente meint Filamente, die aus mehreren unterschiedlichen thermoplastischen Kunststoffen bestehen und Bikomponenten-Filamente meint Filamente, die aus zwei unterschiedlichen thermoplastischen Kunststoffen bestehen. Die Querschnittsfläche eines solchen Filamentes wird dabei teilweise von einem ersten thermoplastischen Kunststoff gebildet und zum Teil von zumindest einem zweiten thermoplastischen Kunststoff. Diese Verteilung der unterschiedlichen Kunststoffe erstreckt sich in der Regel über die gesamte Länge des Filamentes.The invention relates to a method for producing a Spunbonded web of multicomponent filaments. - Multi-component filaments means filaments that consist of several consist of different thermoplastic materials and bicomponent filaments means filaments consisting of two consist of different thermoplastic materials. The cross-sectional area of such a filament is thereby partly from a first thermoplastic formed and in part of at least a second thermoplastic Plastic. This distribution of different Plastics usually extends over the entire length of the filament.

Verfahren zur Herstellung von Spinnvliesen bzw. von Spinnvliesbahnen aus Mehrkomponenten-Filamenten sind aus der Praxis bekannt. Diese bekannten Verfahren weisen aber oftmals den Nachteil auf, dass die damit hergestellten Spinnvliese im Hinblick auf ihre mechanischen Eigenschaften und insbesondere im Hinblick auf ihre Bauschigkeit zu wünschen übrig lassen. Ein besonderer Nachteil dieser bekannten Verfahren liegt darin, dass sich die mechanischen Eigenschaften und insbesondere die Bauschigkeit der hergestellten Spinnvliese nicht reproduzierbar einstellen lässt. Deshalb resultieren häufig Spinnvliesbahnen, die im Hinblick auf die gewünschten Eigenschaften wenig brauchbar sind und insoweit zeichnen sich viele dieser Verfahren durch eine nachteilhaft hohe Ausschussrate aus. Process for the production of spunbond webs or spunbond webs from multicomponent filaments are from the Practice known. However, these known methods have often have the disadvantage that the so produced Spunbonded nonwoven with regard to its mechanical properties and especially with regard to their bulk leave something to be desired. A particular disadvantage of this known method is that the mechanical Properties and in particular the bulkiness of set spun nonwovens reproducible leaves. Therefore, spunbonded nonwoven webs often result in the In view of the desired properties little useful and so far are many of these methods by a disadvantageously high reject rate.

Demgegenüber liegt der Erfindung das technische Problem zugrunde, ein Verfahren der eingangs genannten Art anzugeben, mit dem Spinnvliesbahnen bzw. Spinnvliese hergestellt werden können, die ausgezeichnete mechanische Eigenschaften, insbesondere eine hohe Bauschigkeit aufweisen und mit dem diese Eigenschaften vor allem sehr reproduzierbar einstellbar sind.In contrast, the invention is the technical problem to provide a method of the type mentioned above, with the spunbonded webs or spunbonded nonwovens can be produced, the excellent mechanical Have properties, in particular a high bulkiness and with those properties especially very are reproducibly adjustable.

Zur Lösung dieses technischen Problems lehrt die Erfindung ein Verfahren zur Herstellung einer Spinnvliesbahn aus Mehrkomponenten-Filamenten,
   wobei die Mehrkomponenten-Filamente auf einer Ablage zur Spinnvliesbahn abgelegt werden,
   wobei die Spinnvliesbahn durch Wasserstrahlbehandlung verfestigt wird,
   und wobei die Spinnvliesbahn anschließend zur Aktivierung einer Filamentkräuselung einer Wärmebehandlung unterzogen wird.
To solve this technical problem, the invention teaches a method for producing a spunbonded web of multicomponent filaments,
wherein the multicomponent filaments are deposited on a support to the spunbonded web,
wherein the spunbonded web is solidified by water jet treatment,
and wherein the spunbonded web is then subjected to a heat treatment to activate a filament crimp.

Filamente meint im Rahmen der Erfindung Endlosfäden aus thermoplastischem Kunststoff, die zur Spinnvliesbahn abgelegt werden. Grundsätzlich können im Rahmen der Erfindung aber auch kürzere Fasern zur Herstellung der Spinnvliesbahn eingesetzt werden. Insoweit meint der Begriff Filamente nach einer Ausführungsform auch kürzere Fasern. Filaments means in the context of the invention endless threads thermoplastic material, the spunbonded web be filed. Basically, under the Invention but also shorter fibers for the production of Spunbonded web be used. In that regard, he means Term filaments according to one embodiment also shorter Fibers.

Nach sehr bevorzugter Ausführungsform der Erfindung wird mit Bikomponenten-Filamenten gearbeitet. Die Bikomponenten-Filamente bestehen also aus zwei unterschiedlichen thermoplastischen Kunststoffen mit verschiedenen Eigenschaften, insbesondere mit unterschiedlichem Ausdehnungsverhalten bzw. Schrumpfverhalten. Bikomponenten-Filamente haben sich für das erfindungsgemäße Verfahren besonders bewährt.After a very preferred embodiment of the invention will worked with bicomponent filaments. The bicomponent filaments So there are two different thermoplastic Plastics with different properties, in particular with different expansion behavior or shrinkage behavior. Bicomponent filaments have become especially proven for the process according to the invention.

Sehr bevorzugt werden bei dem erfindungsgemäßen Verfahren Mehrkomponenten-Filamente mit Seite-an-Seite-Struktur eingesetzt. Ganz besonders bevorzugt ist die Verwendung von Bikomponenten-Filamenten mit Seite-an-Seite-Struktur. Dabei wird entlang der Länge der Filamente ein Teil der Filamentoberfläche von einem ersten Polymer gebildet und der andere Teil der Filamentoberfläche von einem zweiten Polymer. Der Einsatz von Bikomponenten-Filamenten in Seite-an-Seite-Anordnung hat sich im Hinblick auf die Lösung des technischen Problems besonders bewährt und zu überraschenden, weiter unten noch genannten Vorteilen geführt.Very preferred are in the inventive method Multi-component filaments used with side-by-side structure. Very particularly preferred is the use of Bicomponent filaments with side-by-side structure. there along the length of the filaments becomes part of the Filament surface formed by a first polymer and the other part of the filament surface of a second Polymer. The use of bicomponent filaments in side-by-side arrangement has become with regard to the solution of technical problem particularly well-tried and surprising, further down mentioned benefits.

Die Mehrkomponenten-Filamente bzw. Bikomponenten-Filamente werden mit einem geeigneten Düsenkopf bzw. mit einer geeigneten Spinnerette hergestellt. Es liegt im Rahmen der Erfindung, dass die austretenden Filamente gekühlt werden. Es liegt fernerhin im Rahmen der Erfindung, dass die Filamente verstreckt werden. Zweckmäßigerweise werden die Filamente auf einer als endlos umlaufendes Ablegesiebband ausgebildeten Ablage zur Spinnvliesbahn abgelegt.The multicomponent filaments or bicomponent filaments be with a suitable nozzle head or with a suitable spinnerette made. It lies within the framework of Invention that the exiting filaments are cooled. It is further within the scope of the invention that the Filaments are stretched. Appropriately, the Filaments on an endless revolving filter belt filed tray deposited to spunbonded web.

Erfindungsgemäß erfolgt die Verfestigung der abgelegten Spinnvliesbahn durch Wasserstrahlbehandlung. Bei dieser Wasserstrahlverfestigung verfestigen feine, sehr schnelle Wasserstrahlen den Vliesstoff. Der Erfindung liegt die Erkenntnis zugrunde, dass die erfindungsgemäße Verfestigung durch Wasserstrahlbehandlung wesentlich zur Lösung des erfindungsgemäßen technischen Problems beiträgt.According to the solidification of the stored Spunbond web by water jet treatment. At this Hydroentangling solidify fine, very fast Water jets the nonwoven fabric. The invention is the Recognition that the solidification according to the invention by water jet treatment essential to the solution of contributes to the technical problem of the invention.

Im Anschluss an die Wasserstrahlbehandlung wird die Spinnvliesbahn anschließend zur Aktivierung einer Filamentkräuselung einer Wärmebehandlung unterzogen. Aufgrund des unterschiedlichen Schrumpfverhaltens der Polymere, aus denen die Mehrkomponenten-Filamente bzw. die Bikomponenten-Filamente bestehen, entsteht durch die Wärmebehandlung bzw. thermische Behandlung eine Kräuselung. Nach sehr bevorzugter Ausführungsform, der im Rahmen der Erfindung ganz besondere Bedeutung zukommt, wird die Wärmebehandlung als Heißluftbehandlung durchgeführt. Die Kräuselung der Filamente in der Spinnvliesbahn wird dabei also mit Hilfe von Heißluft aktiviert. Heißluftbehandlung meint insbesondere eine Behandlung mit Luft einer Temperatur über 60 °C.Following the water jet treatment, the Spunbonded web subsequently to activate a Filamentkräuselung subjected to a heat treatment. Due to the different shrinkage behavior of the polymers, from those the multicomponent filaments or the bicomponent filaments exist, arises through the heat treatment or thermal treatment a ripple. After very much preferred Embodiment, in the context of the invention entirely is particularly important, the heat treatment as Hot air treatment performed. The rippling of the Filaments in the spunbonded web will be so with help activated by hot air. Hot air treatment means in particular a treatment with air at a temperature about 60 ° C.

Der Erfindung liegt die Erkenntnis zugrunde, dass mit dem erfindungsgemäßen Verfahren optimale mechanische Eigenschaften, insbesondere eine hohe Bauschigkeit der Spinnvliesbahn erzielt und eingestellt werden kann. Besondere Bedeutung kommt dabei der Kombination von Wasserstrahlverfestigung einerseits und nachgeschalteter Wärmebehandlung, insbesondere Heißluftbehandlung andererseits zu. Besonders bewährt haben sich im Rahmen des erfindungsgemäßen Verfahrens Bikomponenten-Filamente mit Seite-an-Seite-Struktur. Der Erfindung liegt die Erkenntnis zugrunde, dass mit einer erfindungsgemäßen Wasserstrahlverfestigung sehr funktionssicher und gezielt große freie Filamentlängen eingestellt werden können. Bereits insoweit unterscheidet sich das erfindungsgemäße Verfahren von anderen aus dem Stand der Technik bekannten Verfestigungsmaßnahmen. Nach der Verfestigung mit gezielter Einstellung der freien Filamentlängen wird dann bei der nachgeschalteten Wärmebehandlung, vorzugsweise Heißluftbehandlung, die Filamentkräuselung aktiviert, die aufgrund der unterschiedlichen Ausdehnungseigenschaften der Polymere zustande kommt. Aufgrund der bei der Wasserstrahlverfestigung möglichen gezielten und reproduzierbaren Einstellung der freien Filamentlängen der Bikomponenten-Filamente kann dann bei der Wärmebehandlung die Filamentkräuselung so aktiviert werden, dass ein Vlies mit überraschend hoher Bauschigkeit erhalten wird. Freie Filamentlänge meint im Übrigen die Länge eines Filamentabschnittes zwischen zwei Verfestigungspunkten. Bei der erfindungsgemäßen Kombination von Wasserstrahlverfestigung und anschließender Wärmebehandlung, insbesondere Heißluftbehandlung, kann ein überraschend hoher Kräuselungseffekt erzielt werden und vor allem gezielt eingestellt werden. Im Ergebnis können deshalb mit dem erfindungsgemäßen Verfahren Vliesstoffe mit hoher Bauschigkeit ohne weiteres reproduzierbar hergestellt werden.The invention is based on the finding that with the process according to the invention optimum mechanical properties, in particular a high bulkiness of the spunbonded web can be achieved and adjusted. Special Importance is the combination of hydroentanglement on the one hand and downstream heat treatment, in particular hot air treatment on the other hand to. Have proven particularly in the context of inventive method bicomponent filaments with Side-by-side structure. The invention is the realization underlying that with an inventive Hydroentanglement very reliable and targeted large free filament lengths can be adjusted. Already so far, the invention differs Method of other known from the prior art Consolidation measures. After solidification with more targeted Setting the free filament lengths is then at the downstream heat treatment, preferably hot air treatment, the filament crimp is activated due to the different expansion properties of the polymers comes about. Because of the hydroentanglement possible targeted and reproducible Adjustment of the free filament lengths of the bicomponent filaments can then in the heat treatment the Filament crimping be activated so that a fleece with surprisingly high bulkiness is obtained. Free Filament length means by the way the length of a Filament section between two solidification points. at the inventive combination of hydroentanglement and subsequent heat treatment, in particular Hot air treatment, can be a surprisingly high Rippling effect can be achieved and, above all, targeted be set. As a result, therefore, with the Inventive Methods Nonwovens with high Bulk easily reproducible produced become.

Nachfolgend wird die Erfindung anhand einer ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
einen Schnitt durch ein Bikomponenten-Filament und
Fig. 2
eine schematische Darstellung einer Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.
The invention will be explained in more detail with reference to a drawing illustrating an exemplary embodiment. In a schematic representation:
Fig. 1
a section through a bicomponent filament and
Fig. 2
a schematic representation of an apparatus for performing the method according to the invention.

Fig. 1 zeigt ein im Rahmen des erfindungsgemäßen Verfahrens bevorzugt eingesetztes Bikomponenten-Filament mit Seite-an-Seite-Struktur. Im Ausführungsbeispiel nach Fig. 1 bildet das Polymer A die Hälfte der Querschnittsfläche des Filamentes und das Polymer B bildet die andere Hälfte dieser Querschnittsfläche. Diese Anordnung erstreckt sich vorzugsweise über die gesamte Länge des Filamentes. Es versteht sich, dass das Polymer A oder das Polymer B auch einen größeren Teil der Filamentquerschnittsfläche einnehmen kann. Fig. 1 zeigt insoweit nur eine mögliche Ausführungsform eines Bikomponenten-Filamentes mit Seite-an-Seite-Struktur. Die Polymere A und B weisen zweckmäßigerweise unterschiedliche Schrumpfungseigenschaften bzw. Ausdehnungseigenschaften auf.Fig. 1 shows a in the context of the method according to the invention preferably used bicomponent filament with side-by-side structure. In the embodiment of FIG. 1 forms the polymer A is half the cross-sectional area of the Filament and the polymer B forms the other half this cross-sectional area. This arrangement extends preferably over the entire length of the filament. It It is understood that the polymer A or the polymer B also a larger part of the filament cross-sectional area can take. Fig. 1 shows so far only one possible Embodiment of a bicomponent filament with side-by-side structure. The polymers A and B have suitably different shrinkage properties or expansion properties.

Fig. 2 zeigt ganz schematisch eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens. Die Filamente 1 werden auf einer als endlos umlaufendes Ablegesiebband 2 ausgebildeten Ablage zur Spinnvliesbahn 5 abgelegt. Die Spinnvliesbahn 5 wird auf dem Ablegesiebband 1 in Richtung des Pfeiles C bewegt. In einer Verfestigungsvorrichtung 3 erfolgt eine Vliesverfestigung durch Wasserstrahlbehandlung bzw. durch Behandlung mit Hochdruckwasserstrahlen. Im Anschluss daran wird die Filamentkräuselung in einer Wärmebehandlungsvorrichtung 4 aktiviert, in der die Spinnvliesbahn 5 mit Heißluft beaufschlagt wird. Die Vorrichtung wurde in Fig. 2 sehr vereinfacht dargestellt und es versteht sich, dass weitere Verfahrensmaßnahmen und Vorrichtungskomponenten vorgesehen bzw. zwischengeschaltet sein können.Fig. 2 shows very schematically a device for Implementation of the method according to the invention. The Filaments 1 are on one as endless circulating Ablegesiebband 2 trained tray for spunbonded web 5 stored. The spunbonded web 5 is on the Ablegesiebband 1 moves in the direction of arrow C. In a solidification device 3, a nonwoven bonding takes place Water jet treatment or by treatment with high pressure water jets. Following this, the filament crimp is in a heat treatment device 4 activated, in which the spunbonded web 5 with hot air is charged. The device became very much in Fig. 2 simplified and it is understood that more Procedural measures and device components provided or can be interposed.

Claims (4)

Verfahren zur Herstellung einer Spinnvliesbahn aus Mehrkomponenten-Filamenten,
   wobei die Mehrkomponenten-Filamente auf einer Ablage zur Spinnvliesbahn abgelegt werden,
   wobei die Spinnvliesbahn durch Wasserstrahlbehandlung verfestigt wird,
   und wobei die Spinnvliesbahn anschließend zur Aktivierung einer Filamentkräuselung einer Wärmebehandlung unterzogen wird.
Method for producing a spunbonded web of multicomponent filaments,
wherein the multicomponent filaments are deposited on a support to the spunbonded web,
wherein the spunbonded web is solidified by water jet treatment,
and wherein the spunbonded web is then subjected to a heat treatment to activate a filament crimp.
Verfahren nach Anspruch 1, wobei mit Bikomponenten-Filamenten gearbeitet wird.The method of claim 1, wherein with bicomponent filaments is working. Verfahren nach einem der Ansprüche 1 oder 2, wobei Mehrkomponenten-Filamente mit einer Seite-an-Seite-Struktur eingesetzt werden.Method according to one of claims 1 or 2, wherein Multi-component filaments with a side-by-side structure be used. Verfahren nach einem der Ansprüche 1 bis 3, wobei die Wärmebehandlung als Heißluftbehandlung durchgeführt wird.Method according to one of claims 1 to 3, wherein the Heat treatment is carried out as a hot air treatment.
EP02017894A 2002-08-09 2002-08-09 Method of producing a nonwoven web of bicomponent filaments Expired - Lifetime EP1396567B2 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ES02017894T ES2249519T5 (en) 2002-08-09 2002-08-09 PROCEDURE FOR MANUFACTURING A BAND OF A BICOMPONENT FILAMENT SPINNING VEIL.
DK02017894.3T DK1396567T4 (en) 2002-08-09 2002-08-09 Process for making a spunbond web of multicomponent filaments
EP02017894A EP1396567B2 (en) 2002-08-09 2002-08-09 Method of producing a nonwoven web of bicomponent filaments
AT02017894T ATE310117T1 (en) 2002-08-09 2002-08-09 METHOD FOR PRODUCING A SPUNWOVEN WEB FROM MULTI-COMPONENT FILAMENTS
DE50204950T DE50204950D1 (en) 2002-08-09 2002-08-09 Method for producing a spunbonded web of multicomponent filaments
CNB031220878A CN100507122C (en) 2002-08-09 2003-04-24 Method for producing spun-bonded non-woven fabric web from multiple compoent monofilament
JP2003286550A JP2004076249A (en) 2002-08-09 2003-08-05 Method for producing filament web
MXPA03007026A MXPA03007026A (en) 2002-08-09 2003-08-06 Method of producing a nonwoven web of multicomponent filaments.
BRPI0302745-7A BR0302745B1 (en) 2002-08-09 2003-08-07 process for producing spunbonded fabric from multicomponent filaments.
US10/636,484 US20040055124A1 (en) 2002-08-09 2003-08-07 Method of making spun bond web from multicomponent filaments
KR1020030054892A KR100566743B1 (en) 2002-08-09 2003-08-08 Method of making spunbond web from multicomponent filaments
JP2006003839A JP2006152532A (en) 2002-08-09 2006-01-11 Method for making filament web
US11/705,807 US7850899B2 (en) 2002-08-09 2007-02-13 Method of making spun-bond web from multicomponent filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02017894A EP1396567B2 (en) 2002-08-09 2002-08-09 Method of producing a nonwoven web of bicomponent filaments

Publications (3)

Publication Number Publication Date
EP1396567A1 true EP1396567A1 (en) 2004-03-10
EP1396567B1 EP1396567B1 (en) 2005-11-16
EP1396567B2 EP1396567B2 (en) 2011-04-20

Family

ID=31197796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017894A Expired - Lifetime EP1396567B2 (en) 2002-08-09 2002-08-09 Method of producing a nonwoven web of bicomponent filaments

Country Status (11)

Country Link
US (2) US20040055124A1 (en)
EP (1) EP1396567B2 (en)
JP (2) JP2004076249A (en)
KR (1) KR100566743B1 (en)
CN (1) CN100507122C (en)
AT (1) ATE310117T1 (en)
BR (1) BR0302745B1 (en)
DE (1) DE50204950D1 (en)
DK (1) DK1396567T4 (en)
ES (1) ES2249519T5 (en)
MX (1) MXPA03007026A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508634A1 (en) * 2003-08-20 2005-02-23 Reifenhäuser GmbH & Co. Maschinenfabrik Methof for making a nonwoven fabric
EP1903134A1 (en) * 2006-09-25 2008-03-26 Carl Freudenberg KG Elastic non-woven fabric and method for its production

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823511B1 (en) * 2001-04-13 2003-12-26 Rieter Perfojet INSTALLATION FOR PRODUCING A NONWOVEN SPUNBOND TABLECLOTH CONSOLIDATED BY SPRAYING A FLUID
ES2434019T3 (en) * 2006-12-22 2013-12-13 Reifenhäuser GmbH & Co. KG Maschinenfabrik Procedure and device for the manufacture of a spunbond fabric from cellulose filaments
CZ2018647A3 (en) * 2018-11-23 2020-06-03 Reifenhäuser GmbH & Co. KG Maschinenfabrik Bulky nonwoven fabric with increased compressibility and improved regenerative ability

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418045A (en) * 1992-08-21 1995-05-23 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric
WO2000020178A1 (en) * 1998-10-06 2000-04-13 Hills, Inc. Splittable multicomponent elastomeric fibers
US20020074697A1 (en) * 2000-12-20 2002-06-20 Kimberly-Clark Worldwide, Inc. Hydraulically arranged nonwoven webs and method of making same
DE10105784A1 (en) * 2001-02-07 2002-08-08 Fleissner Gerold Water-needled composite nonwoven made of staple and continuous fibers and manufacturing process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707746A (en) * 1971-06-03 1973-01-02 Du Pont Process of preparing a tufted product
US3720212A (en) * 1971-09-09 1973-03-13 Carter W Co Absorbent panty
US4025595A (en) * 1975-10-15 1977-05-24 E. I. Du Pont De Nemours And Company Process for preparing mixed filament yarns
FR2749860B1 (en) 1996-06-17 1998-08-28 Freudenberg Spunweb Sa NON WOVEN TABLECLOTH FORMED OF VERY THIN CONTINUOUS FILAMENTS
CZ302192B6 (en) * 2000-08-03 2010-12-08 Bba Nonwovens Simpsonville, Inc. Process for producing spunbond nonwoven fabric and system for making the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418045A (en) * 1992-08-21 1995-05-23 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric
WO2000020178A1 (en) * 1998-10-06 2000-04-13 Hills, Inc. Splittable multicomponent elastomeric fibers
US20020074697A1 (en) * 2000-12-20 2002-06-20 Kimberly-Clark Worldwide, Inc. Hydraulically arranged nonwoven webs and method of making same
DE10105784A1 (en) * 2001-02-07 2002-08-08 Fleissner Gerold Water-needled composite nonwoven made of staple and continuous fibers and manufacturing process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508634A1 (en) * 2003-08-20 2005-02-23 Reifenhäuser GmbH & Co. Maschinenfabrik Methof for making a nonwoven fabric
EP1903134A1 (en) * 2006-09-25 2008-03-26 Carl Freudenberg KG Elastic non-woven fabric and method for its production

Also Published As

Publication number Publication date
EP1396567B1 (en) 2005-11-16
ES2249519T5 (en) 2011-06-09
KR20040025551A (en) 2004-03-24
DE50204950D1 (en) 2005-12-22
JP2004076249A (en) 2004-03-11
DK1396567T4 (en) 2011-08-01
US20070182057A1 (en) 2007-08-09
CN100507122C (en) 2009-07-01
BR0302745B1 (en) 2013-02-19
US20040055124A1 (en) 2004-03-25
KR100566743B1 (en) 2006-04-03
EP1396567B2 (en) 2011-04-20
US7850899B2 (en) 2010-12-14
JP2006152532A (en) 2006-06-15
ATE310117T1 (en) 2005-12-15
CN1473976A (en) 2004-02-11
BR0302745A (en) 2004-08-24
MXPA03007026A (en) 2004-10-15
DK1396567T3 (en) 2006-02-13
ES2249519T3 (en) 2006-04-01

Similar Documents

Publication Publication Date Title
DE2652789C2 (en) Spunbonded fabric made from polypropylene filaments
DE3927254C2 (en)
EP1323852B1 (en) Device for making a spunbond web
EP1726700B1 (en) Process and device for making a nonwoven fabric
EP2128320B1 (en) Method and device for the manufacture of nonwoven material from filaments
DE1560801B2 (en) METHOD FOR MANUFACTURING FLEECE BY MELT SPIDER
DE2048006A1 (en) Method and device for the produc- tion of a Vliesahnhchen flat piece
DE2300331A1 (en) DEVICE FOR THE PRODUCTION OF NON-WOVEN NON-WOVEN FABRICS FROM ENDLESS SINGLE THREADS
DE2303328A1 (en) NON-WOVEN PANEL
DE2840827A1 (en) METHOD AND DEVICE FOR MANUFACTURING A NON-WOVEN FLEECE FROM SYNTHETIC FILAMENTS
DE10139228A1 (en) Stretching device and method for producing stretched plastic filaments
WO2005093138A1 (en) Method and device for melt spinning fine synthetic fibres
EP3382080B1 (en) Method and device for producing a non-woven fabric from fibres
EP1280946B1 (en) Method and device for conveying continuous shaped bodies without tensile stress
EP1396567B1 (en) Method of producing a nonwoven web of multicomponent filaments
WO2007073885A1 (en) Method and device for strengthening a running fleece web, and fleece
EP3771764B1 (en) Method and device for producing a nonwoven fabric
EP3199671B1 (en) Device for manufacturing non-woven material
WO2006002684A1 (en) Method for producing a spun-bonded fiber and corresponding spun-bonded fiber
DE10345953B4 (en) Nonwoven fabric and process for its production
DE10258112A1 (en) Method for producing a flat structure from at least partially split yarns, fibers or filaments
DE3603814A1 (en) Apparatus for the production of a thread nonwoven and process for operating such an apparatus
DE2205273A1 (en) Method and device for producing a fiber fleece
EP3974572B1 (en) Non-woven item and method for producing a non-woven item and
DE102004048291A1 (en) Production of spun-bonded fiber comprises adjusting gas flow and nozzle arrangement so that fiber strand is drawn in non-uniform manner in free space and by cooling becomes endless fiber with non-uniform fiber fineness

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030429

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: REIFENHAEUSER GMBH & CO. KG MASCHINENFABRIK

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051116

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051116

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051116

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051116

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 50204950

Country of ref document: DE

Date of ref document: 20051222

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060216

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060216

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2249519

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060417

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

26 Opposition filed

Opponent name: CARL FREUDENBERG KG

Effective date: 20060804

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060809

BERE Be: lapsed

Owner name: REIFENHAUSER G.M.B.H. & CO. KG MASCHINENFABRIK

Effective date: 20060831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051116

PLAY Examination report in opposition despatched + time limit

Free format text: ORIGINAL CODE: EPIDOSNORE2

RTI2 Title (correction)

Free format text: METHOD OF PRODUCING A NONWOVEN WEB OF BICOMPONENT FILAMENTS

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20110420

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Ref document number: 2249519

Country of ref document: ES

Kind code of ref document: T5

Effective date: 20110609

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

REG Reference to a national code

Ref country code: DK

Ref legal event code: T4

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200825

Year of fee payment: 19

Ref country code: TR

Payment date: 20200807

Year of fee payment: 19

Ref country code: CZ

Payment date: 20200722

Year of fee payment: 19

Ref country code: DK

Payment date: 20200820

Year of fee payment: 19

Ref country code: FR

Payment date: 20200826

Year of fee payment: 19

Ref country code: GB

Payment date: 20200826

Year of fee payment: 19

Ref country code: ES

Payment date: 20200902

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20200826

Year of fee payment: 19

Ref country code: IT

Payment date: 20200831

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50204950

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20210831

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210810

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210809

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210809

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210809

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210831

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220301

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210810