EP0859076B1 - Apparatus for hydroentangling the fibres of a fibre web - Google Patents

Apparatus for hydroentangling the fibres of a fibre web Download PDF

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Publication number
EP0859076B1
EP0859076B1 EP98102048A EP98102048A EP0859076B1 EP 0859076 B1 EP0859076 B1 EP 0859076B1 EP 98102048 A EP98102048 A EP 98102048A EP 98102048 A EP98102048 A EP 98102048A EP 0859076 B1 EP0859076 B1 EP 0859076B1
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EP
European Patent Office
Prior art keywords
endless belt
fibrous web
rollers
endless
guide roller
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EP98102048A
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German (de)
French (fr)
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EP0859076A3 (en
EP0859076A2 (en
Inventor
Gerold Fleissner
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Truetzschler Nonwovens GmbH
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Fleissner GmbH
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Priority claimed from DE19706610A external-priority patent/DE19706610A1/en
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Publication of EP0859076A3 publication Critical patent/EP0859076A3/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets

Definitions

  • a device of this type is known from WO 96/23921. She has that Advantage that the voluminous arriving on an endless belt for water needling Fleece between the needling drum and the belt compressed and at the same time is wetted by a first water curtain from the nozzle bar, the Water jets first the endless belt and then the fiber web and finally the Flow through the needling drum.
  • the inconsistent one is disadvantageous Compression of the fibrous web on contact with the needling drum because the circular peripheral surface of the needling drum, with one side of the fiber web comes into contact is greater than the corresponding projection length of the Endless belt on the other side of the fiber web. This creates during compaction the fiber web on the drum has a shear stress between the two Surfaces of the fibrous web, which is particularly negative in the case of thicker nonwovens Fleece composition affects.
  • the device according to the older patent application has the advantage that the bulky leading fiber web between the two endless belts slowly increasing and compressed with even pressure from above and below without shear stress and only when it is firmly held between the two endless belts, is wetted.
  • the invention is based on the object to find a first needling unit in which not only the advantages of Device according to the older patent application are retained, but still one stronger compaction of the fleece before the first wetting of the fiber web is possible. A stronger compression or more correctly, a better hold of the fibers of the fiber web when netting would z. B. prevent blurring of individual fibers and ultimately lead to a better nonwoven product.
  • the two rollers that press the two endless belts against the deflection roller and between which the wetting bar is arranged should be arranged close together and be assigned directly to the deflection roller. In this way the contact pressure of the endless belts to the deflection roller the strongest.
  • the deflection roller can simultaneously be the needling drum or a of the two pressure rollers can be a takeover drum, which is then also the same as a needling drum can be formed.
  • a needling drum can be formed.
  • a water needling unit In a frame 1 is a water needling unit with only one needling drum 2 shown.
  • This unit is usually the first unit of a larger one Water needling system, in which there are several more needling drums, which are wrapped in a meandering shape and with which the fibrous web processed on both sides, can join.
  • this unit consists of a first endless belt 3, which has several Rollers 2, 5 rotatably arranged in a holding frame 4 are deflected and tensioned is held.
  • a needle to be needled runs on this endless belt in the direction of arrow 6 initially more voluminous fibrous web 7. It can also be a fibrous web that initially has no strength and thus directly from a card, not shown is placed on the endless belt 3.
  • the roller 2 is in this embodiment designed as the needling drum. This means that they are in diameter is larger and designed as a permeable drum, which at least at the water contact points under suction (arrows 8) is set.
  • the first endless belt 3 is assigned a second endless belt 9 in opposite directions, that the working strand 3 'of the first endless belt 3 is the working strand 9' of the second Endless belt opposite, there run the runs 3 ', 9' in the same direction and taper towards each other in this area.
  • This is again through several Rolls 10 - 12 of the endless belt 9 causes the on the frame 1 attached support frame 13 are rotatably mounted.
  • Two of the rollers of the second endless belt 9, namely the rollers 11 and 12, are the Deflection roller 2 of the first endless belt 3, which is designed as a needling drum is directly assigned.
  • This means that the rollers 11 and 12 are guided under tension Endless belt 9 against the endless belt 3 and then against the deflection roller 2 press.
  • they are arranged close together and can only be between them so much space that the nozzle bar 14 are advanced to the endless belt 9 can.
  • the delivered and from the strand 3 'of the endless belt 3rd the fiber web carried forward not only slowly compressed between the endless belts 3 and 9, but pressed on the deflection roller 2. in this state the fiber web 7 wet by means of the water bar 14 and can then be further needled.
  • the deflection roller 2 are then two needling nozzle bars 15, 16 in the outlet area of the drum Assigned axially parallel, which ensure the first interweaving of the fibers. supports from the endless belt 3, the fiber web is then transported and to the further treatment organ 17 passed on and thus released from the endless belt 3.
  • nozzle bars 15 'and 16' are here the larger and permeable takeover roller 12 'of the endless belt 9 assigned. in this embodiment, the wetting by means of the bar 14 and the first needling by means of the nozzle bars 15 ', 16' on different Areas of the fibrous web are carried out.
  • FIG. 3 A further example according to FIG. 3 is also conceivable, in which the first, the Endless belt 3 carrying fibrous web 7 through two close together, but at a distance rollers 11 "and 12" arranged to receive the bar 14 'initially the first Endless belt 3, then the fibrous web 7 and then the second endless belt 9 to the deflection roller Press 2 'of the second endless belt 9, the deflecting roller 2' also here, as in the exemplary embodiment according to FIG. 2, the deflecting roller 12 'again as a needling drum is formed, which is why the nozzle bars 15 'and 16' of this drum assigned.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum hydrodynamischen Verschlingen zum vorzugsweise bindemittelfreien Verfestigen der Fasern einer Faserbahn aus natürlichen und/oder künstlichen Fasern jeglicher Art, bestehend

  • a) aus einem die Faserbahn unterstützenden ersten Endlosband, das zwischen mindesten zwei Walzen gespannt geführt und umgelenkt ist, und
  • b) einer zugeordneten Vernadelungstrommel, der über die Arbeitsbreite zumindest ein Düsenbalken achsparallel zugeordnet ist, und
  • c) zumindest einem weiteren Düsenbalken, dessen Wasserstrahlen gegen die Rückseite eines Endlosbandes und durch das Endlosband gegen die Faserbahn zumindest zum Netzen desselben gerichtet sind.
    • The invention relates to a device for hydrodynamic entangling for preferably binding-free consolidation of the fibers of a fibrous web made of natural and / or artificial fibers of any kind, consisting
  • a) from a first continuous belt supporting the fiber web, which is guided and deflected tensioned between at least two rollers, and
  • b) an assigned needling drum, which is assigned at least one nozzle bar axially parallel over the working width, and
  • c) at least one further nozzle bar, the water jets of which are directed against the back of an endless belt and through the endless belt against the fiber web, at least for wetting the same.

    • Eine Vorrichtung dieser Art ist durch die WO 96/23921 bekannt geworden. Sie hat den Vorteil, daß das auf einem Endlosband zur Wasservernadelung ankommende voluminöse Vlies zwischen der Vernadelungstrommel und dem Band verdichtet und gleichzeitig von einem ersten Wasservorhang aus dem Düsenbalken genetzt wird, dessen Wasserstrahlen zunächst das Endlosband und dann die Faserbahn und letztlich die Vernadelungstrommel durchströmen. Nachteilig ist jedoch die nicht gleichbleibende Verdichtung der Faserbahn beim Kontakt mit der Vernadelungstrommel, weil die kreisförmige Umfangsfläche der Vernadelungstrommel, die mit der einen Seite der Faserbahn in Berührung kommt, größer ist als die entsprechende Projektionslänge des Endlosbandes auf der anderen Seite der Faserbahn. Dadurch entsteht beim Verdichten der Faserbahn an der Trommel eine Scherbeanspruchung zwischen den beiden Oberflächen der Faserbahn, was sich insbesondere bei dickeren Vliesen negativ in der Vlieszusammensetzung auswirkt. A device of this type is known from WO 96/23921. She has that Advantage that the voluminous arriving on an endless belt for water needling Fleece between the needling drum and the belt compressed and at the same time is wetted by a first water curtain from the nozzle bar, the Water jets first the endless belt and then the fiber web and finally the Flow through the needling drum. However, the inconsistent one is disadvantageous Compression of the fibrous web on contact with the needling drum because the circular peripheral surface of the needling drum, with one side of the fiber web comes into contact is greater than the corresponding projection length of the Endless belt on the other side of the fiber web. This creates during compaction the fiber web on the drum has a shear stress between the two Surfaces of the fibrous web, which is particularly negative in the case of thicker nonwovens Fleece composition affects.

    Eine weitere Vorrichtung dieser Art ist in der älteren Patentanmeldung 196 27 256.4 offenbart. Danach ist

  • d) dem ersten Endlosband ein zweites ebenfalls zwischen mindesten zwei Walzen gespannt geführtes Endlosband gegenläufig zugeordnet, dessen dem Arbeitstrum des ersten Endlosbandes gegenüber liegendes Arbeitstrum in der gleichen Richtung angetrieben umläuft wie das des ersten Endlosbandes,
  • e) die beiden Arbeitstrums der beiden Endlosbänder sind in ihrer Längserstreckung konisch aufeinander zu gerichtet, so daß die auf dem Arbeitstrum des ersten Endlosbandes liegende Faserbahn zwischen den vorlaufenden Endlosbändern zunehmend verdichtet wird.
    • Auch dort ist ein Düsenbalken zur Netzung der Faserbahn gegen das Endlosband gerichtet, wodurch die zwischen den beiden Endlosbändern verdichtete Faserbahn vor dem Vernadeln auf der Übernahmetrommel zunächst genetzt wird.Another device of this type is disclosed in the earlier patent application 196 27 256.4. After that is
  • d) the first endless belt is assigned a second endless belt, likewise tensioned between at least two rollers, the working belt of which lies opposite the working strand of the first endless belt and rotates in the same direction as that of the first endless belt,
  • e) the two working strands of the two endless belts are conically directed towards one another in their longitudinal extent, so that the fiber web lying on the working strand of the first endless belt is increasingly compressed between the leading endless belts.
    • There too, a nozzle bar for wetting the fibrous web is directed against the endless belt, whereby the fibrous web compressed between the two endless belts is first wetted on the transfer drum before needling.

    Die Vorrichtung nach der älteren Patentanmeldung hat den Vorteil, daß die voluminös vorlaufende Faserbahn zwischen den beiden Endlosbändern langsam zunehmend und mit gleichmäßigem Druck von oben und unten ohne Scherbeanspruchung verdichtet wird und erst dann, wenn sie zwischen den beiden Endlosbändern fest gehalten ist, genetzt wird.The device according to the older patent application has the advantage that the bulky leading fiber web between the two endless belts slowly increasing and compressed with even pressure from above and below without shear stress and only when it is firmly held between the two endless belts, is wetted.

    Ausgehend von der Vorrichtung nach der WO-OS liegt der Erfindung die Aufgabe zugrunde, eine erste Vernadelungseinheit zu finden, bei der nicht nur die Vorteile der Vorrichtung nach der älteren Patentanmeldung beibehalten werden, sondern noch eine stärkere Verdichtung des Vlieses vor dem ersten Netzen der Faserbahn möglich ist. Eine stärkere Verdichtung oder richtiger, ein besserer Halt der Fasern der Faserbahn beim Netzen würde z. B. ein Verschwimmen von Einzelfasern verhindern und letztlich zu einem besseren Vliesprodukt führen.Starting from the device according to WO-OS, the invention is based on the object to find a first needling unit in which not only the advantages of Device according to the older patent application are retained, but still one stronger compaction of the fleece before the first wetting of the fiber web is possible. A stronger compression or more correctly, a better hold of the fibers of the fiber web when netting would z. B. prevent blurring of individual fibers and ultimately lead to a better nonwoven product.

    Zur Lösung der gestellten Aufgabe sieht die Erfindung vor, daß

  • d) dem ersten Endlosband ein zweites ebenfalls zwischen mindesten zwei Walzen gespannt geführtes Endlosband gegenläufig zugeordnet ist, dessen dem Arbeitstrum des ersten Endlosbandes gegenüber liegendes Arbeitstrum in der gleichen Richtung angetrieben umläuft wie das des ersten Endlosbandes,
  • e) die beiden Arbeitstrums der beiden Endlosbänder in ihrer Längserstreckung konisch aufeinander zu gerichtet sind, so daß die auf dem Arbeitstrum des ersten Endlosbandes liegende Faserbahn zwischen den vorlaufenden Endlosbändern zunehmend verdichtet wird,
  • f) das zweite Endlosband von zwei Walzen gegen eine Umlenkwalze des ersten Endlosbandes zur stärkeren Umschlingung der Umlenkwalze von beiden Endlosbändern gedrückt ist und
  • g) zwischen diesen beiden Walzen der Düsenbalken zur Netzung der Faserbahn gegen die zwischen den beiden Endlosbändern verdichtet gehaltene Faserbahn gerichtet ist.
    • To achieve the object, the invention provides that
  • d) the first endless belt is assigned a second endless belt, likewise tensioned between at least two rollers, the working strand of which lies opposite the working strand of the first endless belt and rotates in the same direction as that of the first endless belt,
  • e) the two working strands of the two endless belts are oriented conically towards one another in their longitudinal extent, so that the fiber web lying on the working strand of the first endless belt is increasingly compressed between the leading endless belts,
  • f) the second endless belt is pressed by two rollers against a deflecting roller of the first endless belt for stronger wrapping of the deflecting roller by both endless belts and
  • g) between these two rollers of the nozzle bar for wetting the fiber web is directed against the fiber web, which is kept compressed between the two endless belts.

    • Mit dieser Vorrichtung werden also die erwähnten vorteilhaften Merkmale der Vorrichtung der älteren Patentanmeldung weiterverfolgt und dadurch ergänzt, daß die zwischen den beiden Endlosbändern gepreßt gehaltene Faserbahn beim Netzen durch zwei Walzen fest gegen die Umlenkwalze eines der beiden Endlosbänder gedrückt wird. Dies heißt, daß in unterschiedlichen Ausführungsbeispielen eine Walze des ersten oder des zweiten Endlosbandes die Umlenkwalze sein kann.With this device, the mentioned advantageous features of the device the older patent application followed up and supplemented by the fact that the between the two endless belts of pressed fiber web when wetting through two rollers firmly pressed against the deflecting roller of one of the two endless belts becomes. This means that in different embodiments, a roller of first or the second endless belt can be the deflecting roller.

    Die beiden Walzen, die die beiden Endlosbändcr gegen die Umlenkwalze drücken und zwischen denen der Benetzungsbalken angeordnet ist, sollten dicht beieinander angeordnet und direkt der Umlenkwalze zugeordnet sein. Auf diese Weise ist der Anpreßdruck der Endlosbänder an die Umlenkwalze am stärksten.The two rollers that press the two endless belts against the deflection roller and between which the wetting bar is arranged should be arranged close together and be assigned directly to the deflection roller. In this way the contact pressure of the endless belts to the deflection roller the strongest.

    Es sind unter Beibehaltung dieses Prinzips nun unterschiedliche Ausführungsbeispiele denkbar. So kann die Umlenkwalze gleichzeitig die Vernadelungstrommel oder eine der beiden Anpreßwalzen kann eine Übernahmetrommel sein, die dann auch gleich als eine Vernadelungstrommel ausgebildet sein kann. Im einzelnen wird dazu auf die Figurenbeschreibung verwiesen.While maintaining this principle, there are now different exemplary embodiments conceivable. The deflection roller can simultaneously be the needling drum or a of the two pressure rollers can be a takeover drum, which is then also the same as a needling drum can be formed. In particular, refer to the description of the figures directed.

    Eine Vorrichtung der erfindungsgemäßen Art ist in der Zeichnung beispielhaft dargestellt. Es zeigt:

    Fig. 1
    in der Seitenansicht aus einer größeren Anlage eine erste Vernadelungseinrichtung, bei der eine Umlenkwalze des ersten Endlosbandes als Benetzungstrommel und gleichzeitig als Vernadelungstrommel ausgebildet ist.
    Fig. 2
    die Anlage nach Fig. 1, bei der die Umlenkwalze des ersten Endlosbandes nur für die Benetzung der Faserbahn genutzt ist, während die Vernadelung auf einer folgenden, als Übernahmewalze ausgebildete Umlenkwalze des zweiten Endlosbandes durchgeführt ist, und
    Fig. 3
    die Anlage nach Fig. 1, bei der jedoch sowohl die Benetzung als auch die Vernadelung auf der Übernahmewalze des zweiten Endlosbandes durchgeführt ist.
    A device of the type according to the invention is shown as an example in the drawing. It shows:
    Fig. 1
    in the side view of a larger system a first needling device, in which a deflecting roller of the first endless belt is designed as a wetting drum and at the same time as a needling drum.
    Fig. 2
    1, in which the deflecting roller of the first endless belt is used only for wetting the fiber web, while the needling is carried out on a subsequent deflecting roller of the second endless belt designed as a takeover roller, and
    Fig. 3
    1, in which, however, both the wetting and the needling are carried out on the takeover roller of the second endless belt.

    In einem Rahmengestell 1 ist eine Wasservernadelungseinheit mit nur einer Vernadelungstrommel 2 dargestellt. Diese Einheit ist normalerweise die erste Einheit einer größeren Wasservernadelungsanlage, bei der sich also mehrere weitere Vernadelungstrommeln, die mäanderförmig umschlungen sind und womit dann die Faserbahn beidseitig bearbeitet wird, sich anschließen können.In a frame 1 is a water needling unit with only one needling drum 2 shown. This unit is usually the first unit of a larger one Water needling system, in which there are several more needling drums, which are wrapped in a meandering shape and with which the fibrous web processed on both sides, can join.

    Grundsätzlich besteht diese Einheit aus einem ersten Endlosband 3, das über mehrere in einem Haltegestell 4 drehbar angeordnete Walzen 2, 5 umgel- nkt und gespannt gehalten ist. Auf dieses Endlosband läuft in Richtung des Pfeiles 6 eine zu vernadelnde zunächst voluminösere Faserbahn 7. Es kann auch eine Faserbahn sein, die zunächst keine Festigkeit hat und somit von einer nicht dargestellten Krempel direkt auf das Endlosband 3 abgelegt wird. Die Walze 2 ist in diesem Ausführungsbeispiel als die Vernadelungstrommel ausgebildet. Dies bedeutet, daß sie im Durchmesser größer und als durchlässige Trommel ausgebildet ist, die zumindest an den Wasserauftreffstellen unter Saugzug (Pfeile 8 ) gesetzt ist.Basically, this unit consists of a first endless belt 3, which has several Rollers 2, 5 rotatably arranged in a holding frame 4 are deflected and tensioned is held. A needle to be needled runs on this endless belt in the direction of arrow 6 initially more voluminous fibrous web 7. It can also be a fibrous web that initially has no strength and thus directly from a card, not shown is placed on the endless belt 3. The roller 2 is in this embodiment designed as the needling drum. This means that they are in diameter is larger and designed as a permeable drum, which at least at the water contact points under suction (arrows 8) is set.

    Dem ersten Endlosband 3 ist ein zweites Endlosband 9 gegenläufig derart zugeordnet, daß das Arbeitstrum 3' des ersten Endlosbandes 3 dem Arbeitstrum 9' des zweiten Endlosbandes gegenüberliegt, dort die Trums 3', 9' in der gleichen Richtung umlaufen und in diesem Bereich konisch aufeinander zu laufen. Dies ist wiederum durch mehrere Walzen 10 - 12 des Endlosbandes 9 bewirkt, die an dem am Rahmengestell 1 befestigten Haltegestell 13 drehbar gelagert sind. The first endless belt 3 is assigned a second endless belt 9 in opposite directions, that the working strand 3 'of the first endless belt 3 is the working strand 9' of the second Endless belt opposite, there run the runs 3 ', 9' in the same direction and taper towards each other in this area. This is again through several Rolls 10 - 12 of the endless belt 9 causes the on the frame 1 attached support frame 13 are rotatably mounted.

    Zwei der Walzen des zweiten Endlosbandes 9, nämlich die Walzen 11 und 12, sind der Umlenkwalze 2 des ersten Endlosbandes 3, die als Vernadelungstrommel ausgebildet ist, unmittelbar zugeordnet. Dies heißt, daß die Walzen 11 und 12 das gespannt geführte Endlosband 9 gegen das Endlosband 3 und dann gegen die Umlenkwalze 2 pressen. Dazu sind sie dicht beieinander angeordnet und lassen zwischen sich nur soviel Platz, daß der Düsenbalken 14 bis zum Endlosband 9 vorgeschoben werden kann. Auf diese Weise ist die gelieferte und von dem Trum 3' des Endlosbandes 3 vorgetragene Faserbahn nicht nur zwischen den Endlosbänder 3 und 9 langsam verdichtet, sondern an der Umlenkwalze 2 gepreßt. in diesem Zustand wird die Faserbahn 7 mittels des Wasserbalkens 14 genäßt und kann dann weiter vernadelt werden.Two of the rollers of the second endless belt 9, namely the rollers 11 and 12, are the Deflection roller 2 of the first endless belt 3, which is designed as a needling drum is directly assigned. This means that the rollers 11 and 12 are guided under tension Endless belt 9 against the endless belt 3 and then against the deflection roller 2 press. For this purpose, they are arranged close together and can only be between them so much space that the nozzle bar 14 are advanced to the endless belt 9 can. In this way, the delivered and from the strand 3 'of the endless belt 3rd the fiber web carried forward not only slowly compressed between the endless belts 3 and 9, but pressed on the deflection roller 2. in this state the fiber web 7 wet by means of the water bar 14 and can then be further needled.

    Im Ausführungsbeispiel nach Fig. 1 erfolgt dies gleich auf dieser Umlenkwalze 2, indem das Endlosband 9 mittels der Walze 12 nach oben abgeführt wird, somit die Oberseite der Faserbahn 7 von dem Endlosband 9 befreit ist. Der Umlenkwalze 2 sind dann im Ablaufbereich der Trommel zwei Vernadelungsdüsenbalken 15, 16 achsparallel zugeordnet, die für eine erste Verflechtung der Fasern sorgen. Unterstützt von dem Endlosband 3 wird dann die Faserbahn weiterhin transportiert und an das weitere Behandlungsorgan 17 weitergegeben und damit vom Endlosband 3 gelöst.In the exemplary embodiment according to FIG. 1, this takes place immediately on this deflection roller 2, by the endless belt 9 is removed by means of the roller 12, thus the Top of the fiber web 7 is freed from the endless belt 9. The deflection roller 2 are then two needling nozzle bars 15, 16 in the outlet area of the drum Assigned axially parallel, which ensure the first interweaving of the fibers. supports from the endless belt 3, the fiber web is then transported and to the further treatment organ 17 passed on and thus released from the endless belt 3.

    Das gleiche Prinzip ist beibehalten, wenn in dem Ausführungsbeispiel nach Fig. 2 die Walze 12 des zweiten Endlosbandes 9 als Übernahmewalze 12' und gleichzeitig als Vernadelungstrommel ausgebildet ist. Demgemäß sind hier Düsenbalken 15' und 16' der hier größer und durchlässig ausgebildeten Übernahmewalze 12' des Endlosbandes 9 zugeordnet. in diesem Ausführungsbeispiel wird die Benetzung mittels des Balkens 14 und die erste Vernadelung mittels der Düsenbalken 15', 16' auf unterschiedlichen Flächen der Faserbahn durchgeführt.The same principle is maintained if the in the embodiment of FIG Roller 12 of the second endless belt 9 as a takeover roller 12 'and at the same time as Needling drum is formed. Accordingly, nozzle bars 15 'and 16' are here the larger and permeable takeover roller 12 'of the endless belt 9 assigned. in this embodiment, the wetting by means of the bar 14 and the first needling by means of the nozzle bars 15 ', 16' on different Areas of the fibrous web are carried out.

    Es ist auch noch ein weiteres Beispiel gemäß Fig. 3 denkbar, bei dem das erste, die Faserbahn 7 tragende Endlosband 3 durch zwei dicht beieinander, jedoch mit Abstand zur Aufnahme des Balkens 14' angeordnete Walzen 11" und 12" zunächst das erste Endlosband 3, dann die Faserbahn 7 und dann das zweite Endlosband 9 an die Umlenkwalze 2' des zweiten Endlosbandes 9 drücken, wobei die Umlenkwalze 2' auch hier wie im Ausführungsbeispiel nach Fig. 2 die Umlenkwalze 12' wiederum als Vernadelungstrommel ausgebildet ist, weswegen die Düsenbalken 15' und 16' dieser Trommel zugeordnet sind. In diesem Ausführungsbeispiel wird die Benetzung mittels des Balkens 14' und die erste Vernadelung mittels der Düsenbalken 15', 16' auf der gleichen Fläche der Faserbahn 7, ähnlich wie im Beispiel nach Fig. 1 durchgeführt.A further example according to FIG. 3 is also conceivable, in which the first, the Endless belt 3 carrying fibrous web 7 through two close together, but at a distance rollers 11 "and 12" arranged to receive the bar 14 'initially the first Endless belt 3, then the fibrous web 7 and then the second endless belt 9 to the deflection roller Press 2 'of the second endless belt 9, the deflecting roller 2' also here, as in the exemplary embodiment according to FIG. 2, the deflecting roller 12 'again as a needling drum is formed, which is why the nozzle bars 15 'and 16' of this drum assigned. In this embodiment, the wetting by means of Bar 14 'and the first needling by means of the nozzle bars 15', 16 'on the same Surface of the fibrous web 7, similar to that carried out in the example of FIG. 1.

    Claims (9)

    1. Hydrodynamically entangling apparatus for strengthening, preferably without bonding agents, the fibres of a fibrous web formed from natural and/or artificial fibres of any type, said apparatus comprising
      a) a first endless belt, which supports the fibrous web and is guided and deflected in a tensioned manner between at least two rollers, and
      b) an associated needling drum, at least one nozzle bar being associated with said drum in an axis-parallel manner over the working width, and
      c) at least one additional nozzle bar, the water jets of which are directed against the rear surface of an endless belt and through the endless belt towards the fibrous web, at least for wetting said belt,
      characterised in that
      d) a second endless belt (9), which is also guided in a tensioned manner between at least two rollers, is associated with the first endless belt (3) travelling in the opposite direction, the working portion (9') of said second belt situated opposite the working portion (3') of the first endless belt (3) rotating in a driven manner in the same direction as the working portion of the first endless belt (3),
      e) the two working portions (3', 9') of the two endless belts (3, 9) are orientated converging towards each other, when viewed with respect to their longitudinal extension, so that the fibrous web (7), lying on the working portion (3') of the first endless belt (3), becomes increasingly compressed between the advancing endless belts (3, 9),
      f) the second endless belt (9) is pressed by two rollers (11, 12; 11', 12') against a guide roller (2) of the first endless belt (3) for both endless belts (3, 9) to be looped more intensively around the guide roller (2), and
      g) the nozzle bar (14) between these two rollers (11, 12; 11', 12'), for wetting the fibrous web (7), is directed towards the fibrous web (7), which is retained in a compressed manner between the two endless belts (3, 9).
    2. Hydrodynamically entangling apparatus for strengthening, preferably without bonding agents, the fibres of a fibrous web formed from natural and/or artificial fibres of any type, said apparatus comprising
      a) a first endless belt, which supports the fibrous web and is guided and deflected in a tensioned manner between at least two rollers, and
      b) an associated needling drum, at least one nozzle bar being associated with said drum in an axis-parallel manner over the working width, and
      c) at least one additional nozzle bar, the water jets of which are directed against the rear surface of an endless belt and through the endless belt towards the fibrous web, at least for wetting said belt,
      characterised in that
      d) a second endless belt (9), which is also guided in a tensioned manner between at least two rollers, is associated with the first endless belt (3) travelling in the opposite direction, the working portion (9') of said second belt situated opposite the working portion (3') of the first endless belt (3) rotating in a driven manner in the same direction as the working portion of the first endless belt (3),
      e) the two working portions (3', 9') of the two endless belts (3, 9) are orientated converging towards each other, when viewed with respect to their longitudinal extension, so that the fibrous web (7), lying on the working portion (3') of the first endless belt (3), becomes increasingly compressed between the advancing endless belts (3, 9),
      f) the first endless belt (3) is pressed by two rollers (11", 12") against a guide roller (2') of the second endless belt (9) for both endless belts (3, 9) to be looped more intensively around the guide roller (2'), and
      g) the nozzle bar (14') between these two rollers (11", 12"), for wetting the fibrous web (7), is directed towards the fibrous web (7), which is retained in a compressed manner between the two endless belts (3, 9).
    3. Apparatus according to claim 1 or 2, characterised in that the two rollers (11, 12; 11', 12'; 11", 12") are disposed close to each other, having consideration for the space required for the nozzle bar (14, 14'), and are directly associated with the guide roller (2, 2') of the first or second endless belt (3, 9).
    4. Apparatus according to claim 1, 2 or 3, characterised in that the guide roller (2, 2', 12') is in the form of a needling drum.
    5. Apparatus according to claim 4, characterised in that the guide roller (2, 2', 12') is in the form of a fluid-permeable perforated drum with a diameter greater than that of the rollers (5, 10 - 12).
    6. Apparatus according to claim 4 or 5, characterised in that at least one nozzle bar (15, 16; 15', 16') is associated with the trailing circumferential region of the guide roller (2, 12', 2'), which also has the first or second endless belt (3, 9) looped therearound, for hydraulic needling purposes.
    7. Apparatus according to claim 6, characterised in that the guide roller (12', 2'), which also has the second endless belt (9) looped therearound, is in the form of a fibrous web transfer roller.
    8. Apparatus according to claim 6, characterised in that the second of the two rollers (12'), which are associated with the guide roller (2), is in the form of a fibrous web transfer roller.
    9. Apparatus according to claim 7 or 8, characterised in that the transfer roller (12', 2') is in the form of a needling drum, that is to say a fluid-permeable perforated drum with a diameter greater than that of the rollers (5, 10), and at least one nozzle bar (15', 16') is associated with the transfer roller (12', 2'), which also has the second endless belt (9) looped therearound, for hydraulic needling purposes.
    EP98102048A 1997-02-12 1998-02-06 Apparatus for hydroentangling the fibres of a fibre web Expired - Lifetime EP0859076B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    DE19705292 1997-02-12
    DE19705292 1997-02-12
    DE19706610A DE19706610A1 (en) 1997-02-12 1997-02-20 Device for hydrodynamically intertwining the fibers of a fibrous web
    DE19706610 1997-02-20

    Publications (3)

    Publication Number Publication Date
    EP0859076A2 EP0859076A2 (en) 1998-08-19
    EP0859076A3 EP0859076A3 (en) 2000-05-03
    EP0859076B1 true EP0859076B1 (en) 2002-08-28

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    Application Number Title Priority Date Filing Date
    EP98102048A Expired - Lifetime EP0859076B1 (en) 1997-02-12 1998-02-06 Apparatus for hydroentangling the fibres of a fibre web

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    US (1) US5960525A (en)
    EP (1) EP0859076B1 (en)
    JP (1) JP4005205B2 (en)

    Families Citing this family (23)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2794776B1 (en) * 1999-06-10 2001-10-05 Icbt Perfojet Sa PROCESS FOR THE PRODUCTION OF A NONWOVEN MATERIAL, INSTALLATION FOR ITS IMPLEMENTATION AND NONWOVEN THUS OBTAINED
    DE10006763A1 (en) * 2000-02-15 2001-08-16 Fleissner Gerold Hydrodynamic consolidation of non-woven involves fluid jet treatment of non-woven while held between continuous conveying bands
    JP3703711B2 (en) * 2000-11-27 2005-10-05 ユニ・チャーム株式会社 Non-woven fabric manufacturing method and manufacturing apparatus
    FR2821866B1 (en) * 2001-03-06 2003-05-16 Rieter Perfojet DEVICE AND METHOD FOR COMPACTING A FIBER PATCH WITH PRESSURE ADJUSTMENT APPLIED TO THE PATCH
    JP3761075B2 (en) 2001-05-10 2006-03-29 ユニ・チャーム株式会社 Seat container
    US6753276B2 (en) * 2002-01-08 2004-06-22 Magnolia Manufacturing Company, Inc. Nonwoven fabric of hydrodynamically entangled waste cotton fibers
    FR2838457B1 (en) * 2002-04-12 2004-08-27 Rieter Perfojet DRUM FOR INSTALLATION FOR PRODUCING A NON-WOVEN TABLECLOTH, METHOD FOR PRODUCING A NON-WOVEN TABLECLOTH, AND NON-WOVEN TABLECLOTH OBTAINED
    FR2845697B1 (en) * 2002-10-11 2005-05-27 Rieter Perfojet METHOD AND MACHINE FOR PRODUCING A NON-TISSUE WITH A REDUCTION OF THE SPEED OF DISPLACEMENT OF THE COMPACT TABLET
    DE10254563A1 (en) * 2002-11-21 2004-06-03 Fleissner Gmbh & Co. Maschinenfabrik Device for hydrodynamically intertwining the fibers of a fibrous web
    DE10313416A1 (en) * 2003-03-25 2004-10-07 Fleissner Gmbh Process and device for the production of structured nonwovens by means of hydrodynamic needling
    DE102004030413A1 (en) * 2004-06-23 2006-02-23 Fleissner Gmbh Device for hydrodynamically entangling the fibers of a fibrous web
    DE102004049146A1 (en) * 2004-10-07 2006-04-13 Fleissner Gmbh Wasservernadelungsvorrichtung
    MX2007005567A (en) * 2004-11-30 2007-07-09 Pgi Polimer Inc Method of making a filamentary laminate and the products thereof.
    WO2006060398A2 (en) * 2004-11-30 2006-06-08 Pgi Polymer, Inc. Method of making a filamentary laminate and the products thereof
    WO2007033158A2 (en) * 2005-09-12 2007-03-22 Sellars Absorbent Materials, Inc. Method and device for making towel, tissue, and wipers on an air carding or air lay line utilizing hydrogen bonds
    US7478463B2 (en) * 2005-09-26 2009-01-20 Kimberly-Clark Worldwide, Inc. Manufacturing process for combining a layer of pulp fibers with another substrate
    WO2008110134A1 (en) * 2007-03-09 2008-09-18 Fleissner Gmbh Device for the compaction of stable fibers or a non-woven material comprised of filaments
    PL2417290T3 (en) 2009-04-08 2013-08-30 Truetzschler Nonwovens Gmbh Apparatus for compacting a fibrous web
    DE102010009275A1 (en) * 2010-02-25 2011-08-25 Trützschler Nonwovens GmbH, 63329 Device for solidifying a material web
    DE102011009227A1 (en) * 2011-01-22 2012-07-26 Trützschler Nonwovens Gmbh Apparatus for producing a nonwoven fabric composite
    DE102013101431B4 (en) * 2013-02-13 2016-06-23 TRüTZSCHLER GMBH & CO. KG Apparatus and method for the hydrodynamic consolidation of nonwovens, fabrics and knitted fabrics
    CN107620159B (en) * 2017-09-15 2019-12-13 马鞍山湖滨无纺布科技有限公司 Fiber web forming device
    CN108166153B (en) * 2017-12-19 2020-09-08 杭州诺邦无纺股份有限公司 Alternate interval spunlace nonwoven material and preparation method thereof

    Family Cites Families (13)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CA731854A (en) * 1966-04-12 J. Such John Method and apparatus for the production of non-woven fiber webs
    US4005566A (en) * 1968-07-16 1977-02-01 E. I. Du Pont De Nemours And Company Process and apparatus for imparting coherence to tow
    DE1812516A1 (en) * 1968-12-04 1970-06-25 Glanzstoff Ag Process for the production of nonwovens from endless threads
    JPS4981611A (en) * 1972-12-13 1974-08-06
    US3940833A (en) * 1973-04-26 1976-03-02 Cluett, Peabody & Co., Inc. Method for compressively shrinking textile fabrics at high speed
    FR2601970B1 (en) * 1986-07-24 1988-10-28 Vuillaume Andre DEVICE FOR MANUFACTURING NONWOVEN FABRICS HAVING HIGH STRENGTH CHARACTERISTICS.
    CH685126A5 (en) * 1991-04-04 1995-03-31 Isover S A Crimper.
    US5290628A (en) * 1992-11-10 1994-03-01 E. I. Du Pont De Nemours And Company Hydroentangled flash spun webs having controllable bulk and permeability
    US5573841A (en) * 1994-04-04 1996-11-12 Kimberly-Clark Corporation Hydraulically entangled, autogenous-bonding, nonwoven composite fabric
    FR2730246B1 (en) * 1995-02-03 1997-03-21 Icbt Perfojet Sa PROCESS FOR THE MANUFACTURE OF A NON-WOVEN TEXTILE TABLECLOTH BY PRESSURIZED WATER JETS, AND INSTALLATION FOR CARRYING OUT SAID METHOD
    GB2300429B (en) * 1995-05-03 1999-01-13 Courtaulds Eng Ltd Non-woven fabric manufacture
    US5704102A (en) * 1995-06-26 1998-01-06 Catallo; Frank Apparatus for finishing a fabric web
    DE19627256A1 (en) * 1996-07-08 1998-01-15 Fleissner Maschf Gmbh Co Method and device for the hydromechanical interlacing of the fibers of a fiber web

    Also Published As

    Publication number Publication date
    JPH10226950A (en) 1998-08-25
    EP0859076A3 (en) 2000-05-03
    JP4005205B2 (en) 2007-11-07
    US5960525A (en) 1999-10-05
    EP0859076A2 (en) 1998-08-19

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