EP2344688B1 - Apparatus for producing a spunbonded fabric - Google Patents

Apparatus for producing a spunbonded fabric Download PDF

Info

Publication number
EP2344688B1
EP2344688B1 EP09748102A EP09748102A EP2344688B1 EP 2344688 B1 EP2344688 B1 EP 2344688B1 EP 09748102 A EP09748102 A EP 09748102A EP 09748102 A EP09748102 A EP 09748102A EP 2344688 B1 EP2344688 B1 EP 2344688B1
Authority
EP
European Patent Office
Prior art keywords
producing
spinning beam
melt
blowing
filaments
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.)
Active
Application number
EP09748102A
Other languages
German (de)
French (fr)
Other versions
EP2344688A1 (en
Inventor
Günter SCHÜTT
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
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
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP2344688A1 publication Critical patent/EP2344688A1/en
Application granted granted Critical
Publication of EP2344688B1 publication Critical patent/EP2344688B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • 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
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—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 by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • 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
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • 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
    • D04H3/03—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 at random

Definitions

  • the invention relates to a device for producing a spunbonded nonwoven according to the preamble of claim 1.
  • nonwovens In the production of nonwovens according to the invention, a plurality of filaments are extruded from a polymer melt, formed into a sheet on an air-permeable screen belt and at the same time transported away from the screen belt.
  • a generic device is in the patent DE 199 13 162 C1 described.
  • molten polymer supplied from an extruder is first spun into a plurality of strands in a spinning beam through one or more rows of nozzle bores and fiberized into fine filaments of finite length immediately after emerging from the nozzle bores by a stream of air supplied through a nozzle.
  • the filaments exit the air nozzle at high speed and impinge on a screen belt provided at a certain distance, where the filaments form into a sheet. In the area between the air nozzle and the screen belt, a cooling of the filaments takes place.
  • the conveying direction of the filaments is vertical between the spinning beam, air nozzle and sieve belt.
  • the wire which is designed as a conveyor belt
  • the forming fleece is removed, the orientation and conveying direction of the wire is horizontal.
  • Below the screen belt suction is provided, which supports the formation of the web and in particular for the removal of the filaments accompanying air flow provides.
  • the vertical impact of the filaments on the wire belt at high speed usually produces a high-density web. Many process parameters are predetermined by the structure of the device and therefore allow a variation of the product within narrow limits.
  • a device for producing a spunbonded fabric wherein a spinning beam for extruding melt strands and a blowing device about a horizontal and substantially perpendicular to a conveying direction of a Siebbandvorraum aligned pivot axis is adjustable.
  • the US-B 1-6,315,806 discloses an apparatus for producing a spunbonded fabric, wherein a plurality of spinning beams are arranged in a frame.
  • the Spinning beams are adjustable about a horizontal and substantially perpendicular to a conveying direction of a Siebbandvorraum aligned pivot axis.
  • a flexible elastic pipe is understood as meaning, for example, a flexible pipe or hose connection, but also a fixed pipe joint with rotary unions. This allows for easy adjustment during operation, so that the effect of changing the process parameters can be easily checked on the product.
  • the type and design of the flexible supply lines can be determined by a person skilled in the art.
  • the horizontal axis is aligned perpendicular to the conveying direction of the wire, so that by pivoting about the axis of the impact point of the filaments on the wire in the conveying direction is changed.
  • the essential effect which causes a higher airiness of the nonwoven, comes from the angle at which the filaments strike the screen belt or the already partially formed web.
  • the angle has an influence on the three-dimensional structure of the filaments in the web.
  • the spinning beam is arranged together with the blowing device in a pivoting unit which is pivotable about a pivot axis.
  • the pivoting range between + 45 ° and - 45 ° relative to the vertical, since in this area the great effect on the airiness of the web is expected.
  • a further preferred embodiment variant is the suction, which is provided below the screen belt, in the pivoting direction and thus adjustable in the conveying direction.
  • this makes it possible to adapt the center of gravity of the vacuum profile forming below the sieve belt to the impact point of the filaments.
  • by consciously shifting this vacuum profile a further influence on the process parameters can be taken.
  • the pivot axis is identical or at least close to the center of gravity axis of the pivot unit or the spinning beam and the blowing device. As a result, low adjustment forces are required.
  • means are provided for changing the distance between the spinning beam and the wire belt.
  • this makes sense in order to compensate for the higher throwing distance of the filaments in the case of a pivoted pivoting unit; on the other hand, a further changeable process parameter is thus available.
  • the inventive combination of spinning beam and blowing device can be provided in one embodiment of the invention so that the filaments are prepared by the meltblown process in.
  • the blowing device is designed so that it serves as a take-off nozzle for filaments extruded from the spinning beam.
  • FIG. 1 the side view of the device according to the invention for producing a spunbonded fabric is shown.
  • a spinning beam (not shown here) and a blowing device are integrated in such a way that a filament curtain 8 is conveyed out on the underside of the pivoting unit 1.
  • the filaments 8 hit a screen belt 4, which is driven by a drive 10. Due to the high speed with which the filaments 8 impinge on the screen belt 4, a sheet is produced, which is transported away as a spun web 9 of wire 4 and a further processing, not shown here, is supplied.
  • a suction box 5 is provided below the point at which the filaments 8 impinge on the screen belt 4, which is displaceable in the transport direction of the wire 4.
  • the Absaugbox is applied to a support 14 which is connected to an exhaust 15.
  • the pivoting unit 1 is pivotably mounted about a pivot axis 6.
  • the pivot axis 6 is provided in or near the center axis of the pivot unit 1. Additional adjustments of the process parameters are possible in that the pivoting unit 1 is connected via a holder 12 with a carriage 7 which is movable in the vertical direction on a rail 13.
  • FIG. 2 shows the front view of the device FIG. 1 ,
  • the pivoting unit 1 extends across the width of the spunbonded web 9 to be produced.
  • the filaments 8 produced within the pivoting unit leave the pivoting unit 1 in the form of a curtain.
  • the pivoting unit 1 is pivotally mounted in bearings 16. The adjustment in the vertical direction is not shown for reasons of simplification.
  • the melt required for the production of the filaments 8 is fed from a melt feed line 17 via a rotary feedthrough 18.1. This allows the pivoting unit to pivot during operation. It is not the continuous pivoting movement of the pivoting unit 1 during production in the foreground, but rather the adaptation to a required product when starting production.
  • the rotary feedthrough 18.1 shown here allows pivoting of the pivoting unit about the pivot axis.
  • the melt supply line 17 has a further rotary feedthrough 18.2.
  • the blowing air for the blowing device is supplied via the Blas Kunststoffzu entry 21, an elastic connection 20 and the Blas Kunststofftechnisch 19.
  • an elastic connection 20 here allows the degree of freedom of the pivoting unit 1.
  • the blown air on the opposite side of the melt supply can also be supplied via rotary feedthroughs.
  • the pivoting unit 1 contains the spinning beam 2 and the blowing device 3. Within the spinning beam 2, the melt is distributed over the melt channel 22 and fed via a melt guide 23 of a nozzle 24. Below and to the side of the nozzle 24, the blowing air 3, which is supplied via the blown air chamber 25 under pressure, is passed from the blower 3 via the blower 26 at high speed on the exiting melt strands, so that the melt fiber to fine filaments. This process is known as the meltblown process. Through the exit 27, the filaments leave the pivoting unit 1 at high speed, as in FIGS FIGS. 1 and 2 shown.
  • FIG. 4 an alternative embodiment of the pivoting unit 1 shown, in which the filaments are formed directly from the spinning beam 2.
  • the melt is distributed through a melt channel 28 in the spinning beam and extruded from melt feeds 29 to filaments here.
  • the blowing device 3 is arranged at a distance below the spinning beam 2. This is done by air-permeable compounds 31.
  • the blowing device 3 is constructed so that between two halves, a channel 35 is formed, in which via air nozzles 34 in a blast air chamber 33 under pressure provided compressed air flows at high speed in the conveying direction. As a result, a tensile force is exerted on the filaments, which convey them out of the pivoting unit 1.

Description

Die Erfindung betrifft eine Vorrichtung zum Herstellen eines Spinnvlieses gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for producing a spunbonded nonwoven according to the preamble of claim 1.

Bei der Herstellung erfindungsgemäßer Vliese werden aus einer Polymerschmelze eine Mehrzahl von Filamenten extrudiert, auf einem luftdurchlässigen Siebband zu einem Flächengebilde geformt und zugleich von dem Siebband abtransportiert. Eine gattungsgemäße Vorrichtung ist in der Patentschrift DE 199 13 162 C1 beschrieben.In the production of nonwovens according to the invention, a plurality of filaments are extruded from a polymer melt, formed into a sheet on an air-permeable screen belt and at the same time transported away from the screen belt. A generic device is in the patent DE 199 13 162 C1 described.

Dabei wird von einem Extruder zugeführtes schmelzflüssiges Polymer in einem Spinnbalken durch ein- oder mehrreihig linienförmig angeordnete Düsenbohrungen zunächst zu einer Vielzahl von Strängen gesponnen und unmittelbar nach Austritt aus den Düsenbohrungen von einem durch einen Düse zugeführten Luftstrom zu feinen Filamenten endlicher Länge zerfasert.In this case, molten polymer supplied from an extruder is first spun into a plurality of strands in a spinning beam through one or more rows of nozzle bores and fiberized into fine filaments of finite length immediately after emerging from the nozzle bores by a stream of air supplied through a nozzle.

Die Filamente treten mit hoher Geschwindigkeit aus der Luftdüse aus und treffen auf ein in einer bestimmten Distanz vorgesehenes Siebband auf, wo sich die Filamente zu einem Flächengebilde formieren. In dem Bereich zwischen Luftdüse und Siebband findet eine Abkühlung der Filamente statt. Die Förderrichtung der Filamente ist zwischen Spinnbalken, Luftdüse und Siebband ist vertikal. Durch eine kontinuierliche Bewegung des Siebbandes, welches als Förderband ausgeführt ist, wird das sich bildenden Vlies abtransportiert, wobei die Ausrichtung und Förderrichtung des Siebbandes horizontal ist. Unterhalb des Siebbandes ist eine Absaugung vorgesehen, die die Formierung des Vlieses unterstützt und insbesondere für den Abtransport der die Filamente begleitenden Luftströmung sorgt. Durch das senkrechte Auftreffen der Filamente mit hoher Geschwindigkeit auf das Siebband wird zumeist ein Vlies hoher Dichte erzeugt. Viele Verfahrensparameter sind durch den Aufbau der Vorrichtung vorgegeben und lassen daher eine Variation des Produktes in nur engen Grenzen zu.The filaments exit the air nozzle at high speed and impinge on a screen belt provided at a certain distance, where the filaments form into a sheet. In the area between the air nozzle and the screen belt, a cooling of the filaments takes place. The conveying direction of the filaments is vertical between the spinning beam, air nozzle and sieve belt. By a continuous movement of the wire, which is designed as a conveyor belt, the forming fleece is removed, the orientation and conveying direction of the wire is horizontal. Below the screen belt suction is provided, which supports the formation of the web and in particular for the removal of the filaments accompanying air flow provides. The vertical impact of the filaments on the wire belt at high speed usually produces a high-density web. Many process parameters are predetermined by the structure of the device and therefore allow a variation of the product within narrow limits.

Vielfach werden jedoch auch Vliese mit hoher Luftigkeit gefordert. Um dieser Forderung zu genügen und zugleich eine hohe Flexibilität bezüglich der Vlieseigenschaften zu erreichen, sieht die DE 199 13 162 C1 ein in der Höhe und in der Neigung verstellbares Siebband vor. Diese Lösung führt jedoch zu einem hohen baulichen Aufwand und hat zudem den Nachteil, dass die dem Siebband nachgelagerten Baugruppen ebenfalls angepasst werden müssen.In many cases, however, nonwovens with high airiness are required. To meet this requirement and at the same time to achieve a high degree of flexibility with regard to nonwoven properties, the DE 199 13 162 C1 an adjustable in height and in inclination screen belt before. However, this solution leads to a high construction cost and also has the disadvantage that the downstream of the wire belt assemblies must also be adjusted.

Weiteren Lösungen zur Erhöhung der Flexibilität sind bekannt aus der DE 42 383 47 C2 , wo zur Anpassung der Vorrichtung an die Prozessparameter verstellbare Blasluftlippen vorgeschlagen werden. Weiterhin ist es aus verschiedenen Veröffentlichungen bekannt, zwischen Filamentaustritt und Siebband passive Luftleitmittel oder aktive Blasvorrichtung und vorzusehen, die die Ablage der Filamente auf dem Siebband beeinflussten. Die letztgenannten Lösungen sind geeignet, mit wenig Aufwand die Ablage der Filamente in engen Grenzen zu beeinflussen. Sie sind jedoch nur eingeschränkt geeignet, Vliese mit hoher Luftigkeit herzustellen.Other solutions for increasing flexibility are known from the DE 42 383 47 C2 where adjustable blown air lips are proposed for adapting the device to the process parameters. Furthermore, it is known from various publications, between the filament outlet and the screen belt passive air conduction or active blowing device and provide, which influenced the filing of the filaments on the screen belt. The latter solutions are suitable, with little effort to influence the filing of filaments within narrow limits. However, they are only limited suitable to produce nonwovens with high airiness.

Aus der US-A-4,656,081 ist eine Vorrichtung zur Herstellung eines Spinnvlieses bekannt, wobei ein Spinnbalken zum Extrudieren von Schmelzesträngen sowie eine Blasvorrichtung um eine horizontale und im Wesentlichen senkrecht zu einer Förderrichtung einer Siebbandvorrichtung ausgerichtete Schwenkachse verstellbar ist.From the US-A-4,656,081 a device for producing a spunbonded fabric is known, wherein a spinning beam for extruding melt strands and a blowing device about a horizontal and substantially perpendicular to a conveying direction of a Siebbandvorrichtung aligned pivot axis is adjustable.

Die US-B 1-6,315,806 offenbart eine Vorrichtung zur Herstellung eines Spinnvlieses, wobei eine Mehrzahl von Spinnbalken in einem Rahmen angeordnet sind. Die Spinnbalken sind um eine horizontale und im Wesentlichen senkrecht zu einer Förderrichtung einer Siebbandvorrichtung ausgerichtete Schwenkachse verstellbar.The US-B 1-6,315,806 discloses an apparatus for producing a spunbonded fabric, wherein a plurality of spinning beams are arranged in a frame. The Spinning beams are adjustable about a horizontal and substantially perpendicular to a conveying direction of a Siebbandvorrichtung aligned pivot axis.

Es ist daher Aufgabe der Erfindung, eine Vorrichtung bereitzustellen, mit der die Prozessparameter beim Erstellen von Spinnvlies in einem weiten Bereich variiert werden können und mit dem darüber hinaus Spinnvlies mit besonders hoher Luftigkeit hergestellt werden kann.It is therefore an object of the invention to provide a device with which the process parameters when creating spunbonded fabric can be varied within a wide range and with which, moreover, spunbonded fabric with particularly high airiness can be produced.

Die Aufgabe wird erfindungsgemäß durch eine Vorrichtung mit den Merkmalen nach Anspruch 1 gelöst. Weiterbildungen der Erfindung sind durch die Merkmale und Merkmalskombinationen der Unteransprüche definiert.The object is achieved by a device with the features of claim 1. Further developments of the invention are defined by the features and feature combinations of the subclaims.

Die einfache Anpassbarkeit an verschiedene Verfahrensparameter und damit an verschiedene Produkte wird dadurch erreicht, dass der Spinnbalken und die Blasvorrichtung mit flexiblen Versorgungsleitungen mit der Schmelzezuleitung und der Blasluftzuführung verbunden sind und der Spinnbalken zusammen mit der Blasvorrichtung im laufenden Betrieb um eine horizontale Achse schwenkbar ist. Hierbei wird unter flexibler Versorgungsleitung beispielsweise eine biegeelastische Rohr- beziehungsweise Schlauchverbindung, aber auch eine feste Rohrverbindung mit Drehdurchführungen verstanden. Dies ermöglicht eine leichte Verstellung im laufenden Betrieb, so dass die Auswirkung einer Veränderung der Verfahrensparameter leicht am Produkt überprüft werden kann. Die Art und Ausführung der flexiblen Versorgungsleitungen kann von einem Fachmann bestimmt werden. Die horizontale Achse ist senkrecht zur Förderrichtung des Siebbandes ausgerichtet, so dass durch das Schwenken um die Achse der Auftreffpunkt der Filamente auf das Siebband in Förderrichtung veränderbar ist. Wie sich gezeigt hat, rührt der wesentliche Effekt, der eine höhere Luftigkeit des Vlieses bewirkt, aus dem Winkel, unter dem die Filamente auf das Siebband beziehungsweise auf das sich bereits teilweise gebildete Vlies auftreffen. Insbesondere ist es möglich, durch das schräge Auftreffen den sich bildenden Staudruck zu reduzieren, der auf die Filamente wirkt. Durch das Einstellen des Winkels lässt sich so die Luftigkeit feinfühlig anpassen. Weiterhin hat der Winkel einen Einfluss auf die sich dreidimensional ausbildende Wirrlage der Filamente im Vlies.The simple adaptability to different process parameters and thus to different products is achieved in that the spinning beam and the blowing device are connected to flexible supply lines to the melt supply and the Blasluftzuführung and the spinning beam is pivotable together with the blowing device during operation about a horizontal axis. In this case, a flexible elastic pipe is understood as meaning, for example, a flexible pipe or hose connection, but also a fixed pipe joint with rotary unions. This allows for easy adjustment during operation, so that the effect of changing the process parameters can be easily checked on the product. The type and design of the flexible supply lines can be determined by a person skilled in the art. The horizontal axis is aligned perpendicular to the conveying direction of the wire, so that by pivoting about the axis of the impact point of the filaments on the wire in the conveying direction is changed. As has been shown, the essential effect, which causes a higher airiness of the nonwoven, comes from the angle at which the filaments strike the screen belt or the already partially formed web. In particular, it is possible to reduce by the oblique impact the forming dynamic pressure, which acts on the filaments. By adjusting the angle, the airiness can be sensitively adjusted. Furthermore, the angle has an influence on the three-dimensional structure of the filaments in the web.

In einer bevorzugten Ausführungsform ist der Spinnbalken zusammen mit der Blasvorrichtung in einer Schwenkeinheit angeordnet, die um eine Schwenkachse schwenkbar ist.In a preferred embodiment, the spinning beam is arranged together with the blowing device in a pivoting unit which is pivotable about a pivot axis.

Bevorzugt ist der Schwenkbereich zwischen + 45 ° und - 45 ° gegenüber der Vertikalen, da in diesem Bereich der große Effekt auf die Luftigkeit des Vlieses zu rechnen ist.Preferably, the pivoting range between + 45 ° and - 45 ° relative to the vertical, since in this area the great effect on the airiness of the web is expected.

Ein einer weiteren bevorzugten Ausführungsvariante ist die Absaugung, die unterhalb des Siebbandes vorgesehen ist, in Schwenkrichtung und damit in Förderrichtung verstellbar. Einerseits kann damit der Schwerpunkt des sich unterhalb des Siebbandes bildenden Unterdruckprofils an den Auftreffpunkt der Filamente angepasst werden. Andererseits kann durch bewusstes Verschieben dieses Unterdruckprofils ein weiterer Einfluss auf die Verfahrensparameter genommen werden.A further preferred embodiment variant is the suction, which is provided below the screen belt, in the pivoting direction and thus adjustable in the conveying direction. On the one hand, this makes it possible to adapt the center of gravity of the vacuum profile forming below the sieve belt to the impact point of the filaments. On the other hand, by consciously shifting this vacuum profile, a further influence on the process parameters can be taken.

In einer vorteilhaften Weise ist die Schwenkachse identisch oder zumindest nahe der Schwerpunktachse der Schwenkeinheit beziehungsweise des Spinnbalkens und der Blasvorrichtung. Dadurch sind geringe Verstellkräfte erforderlich.In an advantageous manner, the pivot axis is identical or at least close to the center of gravity axis of the pivot unit or the spinning beam and the blowing device. As a result, low adjustment forces are required.

In einer weiteren, besonders bevorzugten Ausführungsvariante sind Mittel zum Verändern des Abstandes zwischen Spinnbalken und Siebband vorgesehen. Dies ist einerseits sinnvoll, um bei einer geschwenkten Schwenkeinheit die höhere Wurfweite der Filamente zu kompensieren, andererseits steht damit ein weiterer änderbarer Verfahrensparameter zur Verfügung.In a further, particularly preferred embodiment, means are provided for changing the distance between the spinning beam and the wire belt. On the one hand, this makes sense in order to compensate for the higher throwing distance of the filaments in the case of a pivoted pivoting unit; on the other hand, a further changeable process parameter is thus available.

Die erfindungsgemäße Kombination von Spinnbalken und Blasvorrichtung kann in einer Ausführungsvariante der Erfindung so vorgesehen werden, dass die Filamente nach dem Meltblown-Verfahren in hergestellt werden.The inventive combination of spinning beam and blowing device can be provided in one embodiment of the invention so that the filaments are prepared by the meltblown process in.

In einer anderen Ausführungsvariante ist die Blasvorrichtung so ausgebildet, dass sie als Abzugsdüse für vom Spinnbalken extrudierte Filamente dient.In another embodiment, the blowing device is designed so that it serves as a take-off nozzle for filaments extruded from the spinning beam.

Ein Ausführungsbeispiel wird im Folgenden unter Hinweis auf die beigefügten Zeichnungen näher beschrieben.An embodiment will be described in more detail below with reference to the accompanying drawings.

Es stellen dar:

  • Figur 1: Die Seitenansicht der erfindungsgemäßen Vorrichtung,
  • Figur 2: die Vorderansicht der erfindungsgemäßen Vorrichtung,
  • Figur 3: im Schnitt eine Ausführungsvariante von Spinnbalken und Blasvorrichtung,
  • Figur 4: im Schnitt eine weitere Ausführungsvariante von Spinnbalken und Blasvorrichtung.
They show:
  • FIG. 1 : The side view of the device according to the invention,
  • FIG. 2 : the front view of the device according to the invention,
  • FIG. 3 in section a variant of spinning beam and blowing device,
  • FIG. 4 In section, another embodiment of the spinning beam and blowing device.

In Figur 1 ist die Seitenansicht der erfindungsgemäßen Vorrichtung zur Herstellung eines Spinnvlieses dargestellt.In FIG. 1 the side view of the device according to the invention for producing a spunbonded fabric is shown.

In einer Schwenkeinheit 1 ist ein hier nicht dargestellter Spinnbalken und eine Blasvorrichtung in der Weise integriert, dass an der Unterseite der Schwenkeinheit 1 ein Filamentvorhang 8 heraus gefördert wird. Die Filamente 8 treffen auf ein Siebband 4, das von einem Antrieb 10 angetrieben wird. Durch die hohe Geschwindigkeit, mit der die Filamente 8 auf das Siebband 4 auftreffen, wird ein Flächengebilde erzeugt, das als Spinnvlies 9 von Siebband 4 abtransportiert und einer weiteren hier nicht dargestellten Bearbeitung zugeführt wird. Unterhalb des Punktes, an dem die Filamente 8 auf das Siebband 4 auftreffen, ist eine Absaugbox 5 vorgesehen, die in Transportrichtung des Siebbandes 4 verschiebbar ist. Dazu ist die Absaugbox auf einem Träger 14 aufgebracht, der mit einer Absaugung 15 verbunden ist. Damit kann einerseits der Unterdruckbereich, der durch die Absaugbox 5 dem Siebband 4 aufgeprägt wird, an den Auftreffpunkt der Filamente 8 auf das Siebband 4 angepasst werden. Zusätzlich kann durch das Verschieben vor oder hinter den Auftreffpunkt Einfluss auf die Bildung des Spinnvlieses 9 genommen werden.
Um die erfindungsgemäße Vorrichtung leicht an unterschiedliche Prozessparameter anzupassen, ist die Schwenkeinheit 1 um eine Schwenkachse 6 schwenkbar gelagert. Bevorzugt ist die Schwenkachse 6 in oder in der Nähe der Schwerpunktachse der Schwenkeinheit 1 vorgesehen. Zusätzliche Anpassungen der Prozessparameter sind dadurch möglich, dass die Schwenkeinheit 1 über einen Halter 12 mit einem Schlitten 7 verbunden ist, der in vertikaler Richtung auf einer Schiene 13 bewegbar ist.In a pivoting unit 1, a spinning beam (not shown here) and a blowing device are integrated in such a way that a filament curtain 8 is conveyed out on the underside of the pivoting unit 1. The filaments 8 hit a screen belt 4, which is driven by a drive 10. Due to the high speed with which the filaments 8 impinge on the screen belt 4, a sheet is produced, which is transported away as a spun web 9 of wire 4 and a further processing, not shown here, is supplied. Below the point at which the filaments 8 impinge on the screen belt 4, a suction box 5 is provided, which is displaceable in the transport direction of the wire 4. For this purpose, the Absaugbox is applied to a support 14 which is connected to an exhaust 15. Thus, on the one hand, the negative pressure region which is impressed on the screen belt 4 by the suction box 5 can be adapted to the impact point of the filaments 8 on the screen belt 4. In addition, by moving be taken before or after the impact point on the formation of the spunbonded fabric 9.
In order to easily adapt the device according to the invention to different process parameters, the pivoting unit 1 is pivotably mounted about a pivot axis 6. Preferably, the pivot axis 6 is provided in or near the center axis of the pivot unit 1. Additional adjustments of the process parameters are possible in that the pivoting unit 1 is connected via a holder 12 with a carriage 7 which is movable in the vertical direction on a rail 13.

Figur 2 zeigt die Vorderansicht der Vorrichtung aus Figur 1. Die Schwenkeinheit 1 erstreckt sich über die Breite des zu erzeugenden Spinnvlieses 9. Unterseitig verlassen die innerhalb der Schwenkeinheit erzeugten Filamente 8 in Form eines Vorhangs die Schwenkeinheit 1. Die Schwenkeinheit 1 ist in Lagerungen 16 schwenkbar gelagert. Die Verstellung in vertikaler Richtung ist aus Vereinfachungsgründen nicht mit dargestellt. Die für die Erzeugung der Filamente 8 erforderlichen Schmelze wird von einer Schmelzezuleitung 17 über eine Drehdurchführung 18.1 zugeführt. Dies ermöglicht das Schwenken der Schwenkeinheit im Betrieb. Dabei steht nicht die kontinuierliche Schwenkbewegung der Schwenkeinheit 1 während der Produktion im Vordergrund, sondern vielmehr die Anpassung an ein gefordertes Produkt beim Anfahren der Produktion. Die hier dargestellte Drehdurchführung 18.1 ermöglicht das Schwenken der Schwenkeinheit um die Schwenkachse. Um die in Figur 1 dargestellte in einer Weiterbildung der Erfindung vorgesehene vertikale Einstellung zu ermöglichen, weist die Schmelzezuleitung 17 eine weitere Drehdurchführung 18.2 auf. Die Blasluft für die Blasvorrichtung wird über die Blasluftzuführung 21, eine elastische Verbindung 20 und die Blasluftleitung 19 zugeführt. Alternativ zu den Drehdurchführungen 18.1 und 18.2 erlaubt hier eine elastische Verbindung 20 den Freiheitsgrad der Schwenkeinheit 1. Abweichend und alternativ zu den dargestellten Ausführungen sind auch andere Möglichkeiten bekannt und von der Erfindung mit eingeschlossen, die Schmelze und die Blasluft der Schwenkeinheit 1 zuzuführen. Beispielsweise kann die Blasluft auf der der Schmelzezuführung gegenüberliegenden Seite ebenfalls über Drehdurchführungen zugeführt werden. FIG. 2 shows the front view of the device FIG. 1 , The pivoting unit 1 extends across the width of the spunbonded web 9 to be produced. On the underside, the filaments 8 produced within the pivoting unit leave the pivoting unit 1 in the form of a curtain. The pivoting unit 1 is pivotally mounted in bearings 16. The adjustment in the vertical direction is not shown for reasons of simplification. The melt required for the production of the filaments 8 is fed from a melt feed line 17 via a rotary feedthrough 18.1. This allows the pivoting unit to pivot during operation. It is not the continuous pivoting movement of the pivoting unit 1 during production in the foreground, but rather the adaptation to a required product when starting production. The rotary feedthrough 18.1 shown here allows pivoting of the pivoting unit about the pivot axis. To the in FIG. 1 shown in a further development of the invention provided vertical adjustment, the melt supply line 17 has a further rotary feedthrough 18.2. The blowing air for the blowing device is supplied via the Blasluftzuführung 21, an elastic connection 20 and the Blasluftleitung 19. As an alternative to the rotary feedthroughs 18.1 and 18.2, an elastic connection 20 here allows the degree of freedom of the pivoting unit 1. Deviating from and alternative to the illustrated embodiments, other possibilities are known and included in the invention, to supply the melt and the blown air to the swivel unit 1. For example, the blown air on the opposite side of the melt supply can also be supplied via rotary feedthroughs.

Figur 3 stellt im Schnitt die Schwenkeinheit 1 dar. Die Schwenkeinheit 1 enthält den Spinnbalken 2 sowie die Blasvorrichtung 3. Innerhalb des Spinnbalkens 2 wird die Schmelze über den Schmelzekanal 22 verteilt und über eine Schmelzeführung 23 einer Düse 24 zugeführt. Unterhalb und seitlich der Düse 24 wird von der Blasvorrichtung 3 über die Blasluftdüse 26 die Blasluft, welche über die Blasluftkammer 25 unter Druck bereitgestellt wird, mit hoher Geschwindigkeit auf die austretenden Schmelzestränge geleitet, so dass die Schmelze zu feinen Filamenten zerfasert. Dieses Verfahren ist als Meltblown-Verfahren bekannt. Durch den Austritt 27 verlassen die Filamente mit hoher Geschwindigkeit die Schwenkeinheit 1, wie in den Figuren 1 und 2 dargestellt. FIG. 3 The pivoting unit 1 contains the spinning beam 2 and the blowing device 3. Within the spinning beam 2, the melt is distributed over the melt channel 22 and fed via a melt guide 23 of a nozzle 24. Below and to the side of the nozzle 24, the blowing air 3, which is supplied via the blown air chamber 25 under pressure, is passed from the blower 3 via the blower 26 at high speed on the exiting melt strands, so that the melt fiber to fine filaments. This process is known as the meltblown process. Through the exit 27, the filaments leave the pivoting unit 1 at high speed, as in FIGS FIGS. 1 and 2 shown.

Alternativ zu der Variante in Figur 3 wird in Figur 4 eine alternative Ausführungsform der Schwenkeinheit 1 dargestellt, bei der die Filamente direkt vom Spinnbalken 2 gebildet werden. Dazu wird auch hier die Schmelze durch einen Schmelzekanal 28 im Spinnbalken verteilt und von Schmelzezuführungen 29 zu Filamenten extrudiert. In einem Abstand unterhalb des Spinnbalkens 2 ist die Blasvorrichtung 3 angeordnet. Dies erfolgt durch luftdurchlässige Verbindungen 31. Die Blasvorrichtung 3 ist so aufgebaut, dass zwischen zwei Hälften ein Kanal 35 gebildet wird, in den über Luftdüsen 34 die in einer Blasluftkammer 33 unter Druck bereitgestellte Druckluft unter hoher Geschwindigkeit in Förderrichtung einströmt. Dadurch wird auf die Filamente eine Zugkraft ausgeübt, die diese aus der Schwenkeinheit 1 heraus fördern.Alternative to the variant in FIG. 3 is in FIG. 4 an alternative embodiment of the pivoting unit 1 shown, in which the filaments are formed directly from the spinning beam 2. For this purpose, the melt is distributed through a melt channel 28 in the spinning beam and extruded from melt feeds 29 to filaments here. At a distance below the spinning beam 2, the blowing device 3 is arranged. This is done by air-permeable compounds 31. The blowing device 3 is constructed so that between two halves, a channel 35 is formed, in which via air nozzles 34 in a blast air chamber 33 under pressure provided compressed air flows at high speed in the conveying direction. As a result, a tensile force is exerted on the filaments, which convey them out of the pivoting unit 1.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Schwenkeinheitswivel unit
22
Spinnbalkenspinning beam
33
Blasvorrichtungblower
44
Siebbandscreen belt
55
AbsaugboxDust Extractor
66
Schwenkachseswivel axis
77
Schlittencarriage
88th
Filamentvorhangfilament curtain
99
Spinnvliesspunbond
1010
Antriebdrive
1111
Schwenkbereichswivel range
1212
Halterholder
1313
Schienerail
1414
Trägercarrier
1515
Absaugungsuction
1616
Lagerungstorage
1717
Schmelzezuleitungmelt feeding
18.1, 18.218.1, 18.2
DrehdurchführungRotary union
1919
Blasluftleitungblast air
2020
Elastische VerbindungElastic connection
2121
Blasluftzuführungblown air
2222
Schmelzekanalmelt channel
2323
Schmelzezuführungmelt feed
2424
Düsejet
2525
Blasluftkammerblast air
2626
Blasluftdüseblowing air nozzle
2727
Austrittexit
2828
Schmelzekanalmelt channel
2929
Schmelzezuführungmelt feed
3030
Düsenjet
3131
Verbindungconnection
3232
Abzugsdüsenavel
3333
Blasluftkammerblast air
3434
Luftdüseair nozzle
3535
Kanalchannel

Claims (8)

  1. Apparatus for producing a spunbonded fabric comprising a spinning beam (2) for extruding melt strands having a blowing apparatus (3) disposed behind their exit, and a fabric belt apparatus disposed vertically below the spinning beam having a fabric belt (4)that is movable in the conveying direction, characterized in that the spinning beam (2) and the blowing apparatus (3) are connected by flexible supply lines with the melt feed (17) and the blowing air feed (21) and in that the spinning beam (2) and the blowing apparatus (3) are adjustable during running operation around a horizontal swivel axis (6) having an essentially perpendicular alignment relative to the conveying direction.
  2. Apparatus for producing a spunbonded fabric as claimed in Claim 1, characterized in that the spinning beam (2) and the blowing apparatus (3) are disposed in a pivoting unit (1) that is pivotable around a swivel axis (6).
  3. Apparatus for producing a spunbonded fabric as claimed in Claim 1 or Claim 2, characterized in that the pivoting range (11) is between +45° and -45° relative to the vertical line.
  4. Apparatus for producing a spunbonded fabric as claimed in one of the Claims 1 to 3 characterized in that a suction means (5) is disposed below the fabric belt (4), and wherein the suction means is displaceable in the pivoting direction.
  5. Apparatus for producing a spunbonded fabric as claimed in one of the previous Claims characterized in that the swivel axis (6) corresponds essentially to the neutral axis of the pivoting unit (1) that is to be pivoted.
  6. Apparatus for producing a spunbonded fabric as claimed in one of the previous Claims characterized in that means (7) are envisioned for changing the distance between the spinning beam (2) and the fabric belt (4).
  7. Apparatus for producing a spunbonded fabric as claimed in one of the Claims 1 to 6 characterized in that the blowing apparatus (3) is disposed immediately behind the exit of the melt from the spinning beam (2) specifically such that the blowing air is directed onto the melt strands at a high speed thereby shredding the melt.
  8. Apparatus for producing a spunbonded fabric as claimed in one of the Claims 1 to 6 characterized in that the blowing apparatus (3) is disposed after the exit of the melt from the spinning beam (2) at such a distance that the blowing air is directed onto the filaments in such a way that said filaments are already partially cooled, and whereby the blowing air effects a pull that acts upon the filaments.
EP09748102A 2008-11-13 2009-11-02 Apparatus for producing a spunbonded fabric Active EP2344688B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008057172 2008-11-13
PCT/EP2009/064414 WO2010054943A1 (en) 2008-11-13 2009-11-02 Apparatus for producing a spunbonded fabric

Publications (2)

Publication Number Publication Date
EP2344688A1 EP2344688A1 (en) 2011-07-20
EP2344688B1 true EP2344688B1 (en) 2013-01-09

Family

ID=41490399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09748102A Active EP2344688B1 (en) 2008-11-13 2009-11-02 Apparatus for producing a spunbonded fabric

Country Status (6)

Country Link
US (1) US8496459B2 (en)
EP (1) EP2344688B1 (en)
JP (1) JP5586620B2 (en)
KR (1) KR20110086562A (en)
CN (1) CN102216501B (en)
WO (1) WO2010054943A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2718492B1 (en) 2011-06-09 2019-01-16 Oerlikon Textile GmbH & Co. KG Device for making a fiberous product by laying melt spun fibres.
JP5874003B2 (en) * 2012-04-24 2016-03-01 パナソニックＩｐマネジメント株式会社 Nanofiber manufacturing apparatus and manufacturing method
CN104246045B (en) * 2012-04-27 2016-11-02 欧瑞康纺织有限及两合公司 For limited fibre meltblown, shaping and lay are become the method and apparatus of fiber matting
KR20150016545A (en) * 2012-06-01 2015-02-12 닛폰노즐 가부시키가이샤 Nonwoven fabric manufacturing device and monwoven fabric manufacturing method
DE102015003184A1 (en) 2014-04-24 2015-10-29 Oerlikon Textile Gmbh & Co. Kg Method and device for producing a fibrous web
US9486960B2 (en) * 2014-12-19 2016-11-08 Palo Alto Research Center Incorporated System for digital fabrication of graded, hierarchical material structures
JP5946569B1 (en) * 2015-04-17 2016-07-06 紘邦 張本 Melt blow cap and ultrafine fiber manufacturing equipment
CN111321522A (en) * 2019-08-09 2020-06-23 武汉永强化纤有限公司 Production process of high-strength polypropylene spun-bonded non-woven fabric with uniform aspect ratio
CN111607830A (en) * 2020-07-02 2020-09-01 深圳市爱普克流体技术有限公司 Melt shower nozzle and melt blown equipment
CN112962221B (en) * 2021-04-27 2022-07-15 嘉兴南湖学院 Preparation system of gradient distribution structure composite fiber non-woven fabric
CN116397383B (en) * 2023-06-09 2023-08-22 称道新材料科技(上海)有限公司 Meltblown cloth with three-dimensional structure and application thereof

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2925117A (en) * 1960-02-16 Apparatus for making bonded fibrous glass mats
DE1469501A1 (en) * 1964-12-24 1969-01-23 Glanzstoff Ag Process for the production of felt-like surface structures
US3978185A (en) * 1968-12-23 1976-08-31 Exxon Research And Engineering Company Melt blowing process
CA944913A (en) * 1970-04-01 1974-04-09 Toray Industries, Inc. Apparatus and method for manufacturing continuous filaments from synthetic polymers
US3806289A (en) * 1972-04-05 1974-04-23 Kimberly Clark Co Apparatus for producing strong and highly opaque random fibrous webs
JPS6025541B2 (en) * 1976-09-22 1985-06-19 日本バイリ−ン株式会社 High-strength nonwoven fabric made of fine fibers and method for producing the same
JPS59199856A (en) * 1983-04-25 1984-11-13 東レ株式会社 Nonwoven sheet and production thereof
JPH08224412A (en) * 1995-02-20 1996-09-03 Toray Ind Inc Nonwoven fabric, filter medium made from the same and these production
JPH1096156A (en) * 1996-09-17 1998-04-14 Oji Paper Co Ltd Base fabric for disposable clothes
US6315806B1 (en) * 1997-09-23 2001-11-13 Leonard Torobin Method and apparatus for producing high efficiency fibrous media incorporating discontinuous sub-micron diameter fibers, and web media formed thereby
US6183670B1 (en) * 1997-09-23 2001-02-06 Leonard Torobin Method and apparatus for producing high efficiency fibrous media incorporating discontinuous sub-micron diameter fibers, and web media formed thereby
DE19940333B4 (en) * 1999-08-25 2004-03-25 Reifenhäuser GmbH & Co Maschinenfabrik Plant for the production of a spunbonded nonwoven web from plastic filaments
JP2001081660A (en) * 1999-09-07 2001-03-27 Tonen Tapyrus Co Ltd High strength melt-blown nonwoven and its production
DE10109304C5 (en) * 2001-02-26 2009-07-16 Sandler Ag Textured, voluminous metblown fleece
JP2002302862A (en) * 2001-04-06 2002-10-18 Mitsui Chemicals Inc Method of producing nonwoven fabric and apparatus therefor
JP3930355B2 (en) * 2002-03-26 2007-06-13 新日本石油化学株式会社 Web manufacturing method and web manufacturing apparatus in which filaments are arranged in one direction
JP3962655B2 (en) * 2002-08-23 2007-08-22 新日本石油株式会社 Web manufacturing method and web manufacturing apparatus in which filaments are arranged in one direction
EP1797230B1 (en) * 2004-09-24 2009-03-04 Oerlikon Textile GmbH & Co. KG Device for stacking synthetic fibres to form a nonwoven

Also Published As

Publication number Publication date
CN102216501A (en) 2011-10-12
WO2010054943A1 (en) 2010-05-20
CN102216501B (en) 2014-05-21
JP5586620B2 (en) 2014-09-10
JP2012508832A (en) 2012-04-12
US20110244066A1 (en) 2011-10-06
US8496459B2 (en) 2013-07-30
KR20110086562A (en) 2011-07-28
EP2344688A1 (en) 2011-07-20

Similar Documents

Publication Publication Date Title
EP2344688B1 (en) Apparatus for producing a spunbonded fabric
DE69637297T2 (en) METHOD AND DEVICE FOR THE MOLECULE PRODUCTION
DE102015218650B3 (en) Device for cutting sheet metal blanks from a sheet metal strip
DE102011075924B4 (en) Melt spinning process
EP3011092B1 (en) Entangled carbon-fiber nonwoven production method and assembly and three-dimensional-component nonwoven production method
EP1978833B1 (en) Deflecting device for a continuous filter tow, method for conveying and deflecting at least one continuous filter tow, and device for the production of cigarette filters
EP0331946B1 (en) Device for producing fibres, particularly mineral fibres, from a melt
DE60120260T2 (en) Method for producing a nonwoven fabric and associated device
EP0325116A2 (en) Process for the preparation of ultra-fine polymer fibres
EP1712668A1 (en) Process and device for making a nonwoven web by depositing synthetic fibers
DE60036994T2 (en) Nonwoven fabric of polypropylene fiber and process for its production
WO2017129317A1 (en) Rail vehicle having a covered bogie
DE1815021A1 (en) Device for the production of ribbons from disordered fibers
WO2007048575A1 (en) Apparatus and method for laying down synthetic fibres to form a nonwoven
DE10051942B4 (en) Method and device for cutting material plates
DE4123122A1 (en) Multifilament extrusion installation to produce fibrous web from plastic material - has layers of woven wire sieve to provide plastic gauze used for filters, masks and nappies
DE10321283B4 (en) napper
DE102008051836B4 (en) Process for the production of spunbonded nonwovens
WO2017129318A1 (en) Device for producing spunbonded webs
EP1218576A2 (en) Method and device for influencing the structure and position of fibres during the aerodynamic formation of non-wovens
EP1178142B1 (en) Method and apparatus for making a spunbonded nonwoven
DE3807483A1 (en) Device for uniform laying down of the filaments in the manufacture of a bonded fabric using the direct method
DE1190135B (en) Method and device for producing fibers from fusible materials
DE102009022790A1 (en) Apparatus for processing filter bowl line in tobacco processing industry, has filter bowl guide path, along which filter bowl line is guided in transport direction
EP1837429B1 (en) Process and device for making a nonwoven web by depositing synthetic fibers

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: 20110411

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 HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20120306

RIC1 Information provided on ipc code assigned before grant

Ipc: D01D 4/02 20060101AFI20120622BHEP

Ipc: D01D 5/098 20060101ALI20120622BHEP

Ipc: D04H 3/03 20120101ALI20120622BHEP

Ipc: D04H 1/70 20120101ALI20120622BHEP

Ipc: D04H 1/56 20060101ALI20120622BHEP

Ipc: D04H 3/02 20060101ALI20120622BHEP

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

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 HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

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

Ref country code: AT

Ref legal event code: REF

Ref document number: 592823

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130115

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: DE

Ref legal event code: R096

Ref document number: 502009005969

Country of ref document: DE

Effective date: 20130307

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

Ref country code: SI

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: 20130109

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130109

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

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: 20130409

Ref country code: NO

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: 20130409

Ref country code: ES

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: 20130420

Ref country code: IS

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: 20130509

Ref country code: LT

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: 20130109

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

Ref country code: PL

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: 20130109

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: 20130109

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: 20130109

Ref country code: LV

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: 20130109

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: 20130509

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: 20130410

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

Ref country code: HR

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: 20130109

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: 20130109

Ref country code: DK

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: 20130109

Ref country code: RO

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: 20130109

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: 20130109

Ref country code: CZ

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: 20130109

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

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: 20130109

26N No opposition filed

Effective date: 20131010

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009005969

Country of ref document: DE

Effective date: 20131010

BERE Be: lapsed

Owner name: OERLIKON TEXTILE G.M.B.H. & CO. KG

Effective date: 20131130

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

Effective date: 20131102

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

Ref country code: MC

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: 20130109

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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: 20131130

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

Ref country code: IE

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

Effective date: 20131102

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

Ref country code: GB

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

Effective date: 20131102

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

Ref country code: SM

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: 20130109

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

Ref country code: TR

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: 20130109

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: 20131102

Ref country code: MK

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: 20130109

Ref country code: HU

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

Effective date: 20091102

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

Ref country code: MT

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: 20130109

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 7

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 592823

Country of ref document: AT

Kind code of ref document: T

Effective date: 20141102

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: 20141102

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

Ref country code: FR

Payment date: 20151123

Year of fee payment: 7

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170731

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

Ref country code: FR

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

Effective date: 20161130

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

Ref country code: ES

Payment date: 20181203

Year of fee payment: 7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: CH

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

Effective date: 20191130

Ref country code: LI

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

Effective date: 20191130

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

Ref country code: IT

Payment date: 20231124

Year of fee payment: 15

Ref country code: DE

Payment date: 20231121

Year of fee payment: 15