EP3283679B1 - Plant and method for connecting a web of fibrous material to a nonwoven or consolidating it therewith - Google Patents

Plant and method for connecting a web of fibrous material to a nonwoven or consolidating it therewith Download PDF

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Publication number
EP3283679B1
EP3283679B1 EP16702664.0A EP16702664A EP3283679B1 EP 3283679 B1 EP3283679 B1 EP 3283679B1 EP 16702664 A EP16702664 A EP 16702664A EP 3283679 B1 EP3283679 B1 EP 3283679B1
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EP
European Patent Office
Prior art keywords
nonwoven
fibre material
web
belt
water jets
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Application number
EP16702664.0A
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German (de)
French (fr)
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EP3283679A1 (en
Inventor
Thomas Weigert
Steffen Peters
Dominic Prömpler
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Voith Patent GmbH
Truetzschler GmbH and Co KG
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Voith Patent GmbH
Truetzschler GmbH and Co KG
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Publication of EP3283679A1 publication Critical patent/EP3283679A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • 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

  • the invention relates to a system and a method for connecting or solidifying a web of fiber material with a nonwoven by means of water jets, with a first circumferential belt on which a web of fiber material can be deposited and a device for introducing a nonwoven into the system, with a further subsequent circumferential belt on which the fleece with the web of fibrous material can be connected or solidified by means of water jets.
  • EP 1929080 B1 known to connect loose fibers with a fleece, in which the loose fibers are always supported and guided by a tape from below and are simultaneously deposited on a fleece.
  • This method and the associated system are very complex, since an absolutely parallel guidance of the strips over a longer section is required.
  • This is structurally very complex to implement, since constant tension is required between the belts and both belts must have an identical speed at every point in order not to introduce uncontrolled distortions into the end product.
  • the WO 2004/097097 A1 and the WO 2005/118934 A1 disclose a method for producing a fleece by means of airlaid, a fibrous web being deposited upside down on a circulating conveyor belt.
  • the fibrous web is stabilized in that a further fibrous web, for example pulp, is connected to the airlaid fibers with a binding agent by means of mechanical compaction. It is a dry process in which the fibers are deposited with the help of a vacuum. Wet laid short fibers cannot be processed in this way.
  • the EP 2116645 A1 and the US 2003/0021970 disclose a method for the production of a sandwich fleece, in which a spunbond or a fleece made of synthetic fibers is deposited between two carded fleeces and solidified. Wet laid short fibers cannot be processed in this way.
  • the object of the present invention is to create a method and a system for connecting a web of loose fibers with a fleece, with which a compact and inexpensive system can be produced.
  • the system for connecting or solidifying a web of fibers with a fleece by means of water jets comprises at least one first circumferential belt on which a web of fiber material can be placed and a device for introducing a fleece into the system, the another subsequent revolving belt is arranged downstream, on which the fleece with the web of fibrous material can be connected or solidified by means of water jets.
  • the invention is characterized in that the web of fibrous material from the first circumferential belt can first be deposited on the fleece and then the fibrous material together with the fleece is transferred to the subsequent belt for connection or solidification by means of water jets.
  • the term “depositing the fibrous material on the fleece” does not require that the fleece has to assume an approximately horizontal position so that the loose fibers or the web of fibrous material are transferred to the fleece and form a first connection. For this purpose, it is sufficient that, for example, on the sloping section of the circumferential belt, a first contact is made between the fleece and the web of fibrous material, so that the adhesion between the layers causes a first light connection, even if the fleece is arranged spatially above the fibrous material is.
  • connection between the fleece and the fibrous material takes place by means of water jets, whereby at the same time a solidification of the fibrous material in itself, but also with the fleece takes place, since the fibers swirl with and into each other.
  • joining of nonwoven and fiber material also means consolidation at the same time.
  • the web of fibrous material is transferred with its upper side onto a circumferential belt which is arranged in front of the further following belt for hydroentangling.
  • very light fibrous materials are supported and transferred onto a preferably horizontal or inclined belt from an overhead position before the fleece is introduced into the system and connected to the fibrous material.
  • This overhead laying enables the connection of the upper side of the fiber material with the fleece, whereby the flat underside of the fiber material reaches the outside of the product and this achieves a visually better quality.
  • the device for introducing the fleece into the system is preferably arranged between the belts.
  • the result is a space-saving solution in which the fiber material is first placed upside down on a further belt and can then be placed with the upper side on the fleece, before the two are connected and solidified together.
  • the arrangement of the device for introducing the fleece in the area of a roller of the circulating belt has the advantage that the upper side of the web of fibrous material is placed on the fleece and the fibrous material is compacted between the roller and the incoming fleece.
  • the roller of the circulating belt is arranged as a deflection roller around which the belt changes its direction. Because the fibrous material with the fleece is guided around the roller by a deflection angle, the fibrous material is first compressed or compacted.
  • the fleece is introduced into the system with a defined pre-tension in order to generate minimal contact pressure on the fiber material.
  • the device for introducing the fleece into the system can be designed as a roller.
  • an unwinding device or a carding device can be integrated into the system in a free spatial arrangement, whereby the fleece can enter the system directly or indirectly via further rollers.
  • the device for introducing the fleece into the system can be designed as a suction drum, the suction drum advantageously being equipped with at least one first nozzle bar, so that a first connection or solidification between the fleece and fiber material can take place here.
  • the arrangement of the suction drum in the direction of material transport after the roller enables a multi-stage connection or consolidation of the fibrous material with the fleece.
  • the suction drum can advantageously be arranged in the material transport direction between the first revolving belt and the subsequent belt for connecting / solidifying the fibrous material with the fleece, the fibrous material being transferred with its upper side to the suction drum, and the fleece being introduced into the system in this way is that by means of water jets, the underside of the fiber material can be connected or solidified with the fleece.
  • this alternative enables different variants in the surface structure of the end product.
  • the suction drum is arranged in the material transport direction between the first revolving belt and the following belt for connecting / solidifying the fibrous material with the fleece, the fibrous material being transferred with its upper side to the suction drum and a fleece in this way into the system is introduced that by means of water jets, the upper side of the fibrous material is connected or solidified with the fleece.
  • At least one water bar can be arranged within the revolving belt on which the loose fiber material is deposited in order to detach the web of fiber material from the belt.
  • the distance between the revolving belt on which the loose fiber material is deposited and the belt on which the fleece is connected to the fiber material by means of water jets is greater than the thickness of the fleece with the fiber material deposited thereon.
  • the method according to the invention for connecting or consolidating a web of fibrous material with a fleece by means of water jets provides that a web of fibrous material can be placed on a first circumferential belt, and that a fleece for connection with the web of fibrous material can be introduced into the system, wherein the fleece with the web of fibrous material can be connected or solidified to one another by means of water jets on a further following circumferential belt.
  • the web of fibrous material is placed on the fleece and then the fibrous material together with the fleece is transferred to the next following belt for connection or solidification by means of water jets.
  • the web of fibrous material can be transferred with its upper side onto a circumferential belt which is arranged in front of the further following belt for hydroentangling.
  • the fiber material is first transferred overhead to the following belt and only then connected to the fleece.
  • An inclined screen former 1 is arranged below a rotating screen belt 10.
  • the screen belt 10 which can be designed as an endless belt, runs around various rollers 12 and has an inclined section 11 which rises in the running direction of the screen belt by the angle a.
  • the inclined screen former 1 is arranged below the screen belt 10, on its covering 2 the screen belt 10 is supported.
  • the inclined screen former 1 can have a plurality of suction zones 3 to which different pressures or negative pressures are applied.
  • the vacuum sources can preferably be designed as controllable / regulatable vacuum pumps.
  • each fiber suspension 8.1, 8.2 and 8.3 contains, in addition to water, a certain content of solids, which in turn consists of fibers and other additives.
  • the fiber suspensions 8.1, 8.2, 8.3 lamellae (not shown) are arranged with which the layer thickness of the fiber suspensions can be varied individually or in total. Since the lamellae separate the fiber suspensions 8.1, 8.2 and 8.3 from one another, they are dewatered one after the other on the inclined wire former 1. This prevents the fiber suspensions 8.1, 8.2 and 8.3 from mixing and improves the purity of the individual layers of fiber material.
  • each layer of a fiber suspension 8.1, 8.2 and 8.3 can be exposed to a separate negative pressure, with which different mixtures of water with fibers can be processed in each fiber suspension.
  • the fiber suspensions 8.1 and 8.3, which form the outer layers or the cover layer for the middle layer of fiber suspension 8.2 during further processing, can at least partly consist of short synthetic fibers such as polyester, polyamide or polyolefin. Mixtures of synthetic and natural fibers are also possible.
  • the outer layers can also consist of 100% pulp.
  • the middle Fiber suspension can consist of natural fibers that have a high water retention capacity.
  • the thickness of the layers can be adjusted by means of the lamellae in that the task of the fiber suspensions 8.1, 8.2 and 8.3 via the headbox 8 can be varied.
  • layers of the same thickness can be produced, or the layers can be produced with a gradation of, for example, 10%, 80% and 10% thickness.
  • the weight per unit area of each layer of fibrous material 9 can also be set indirectly via this.
  • the sieve belt 10 which is permeable to liquids and gases, transports the fiber suspensions 8.1, 8.2 and 8.3 arranged one above the other via the inclined section 11 over the inclined screen former 1. Due to the force of gravity and the negative pressure that acts on the fiber suspensions 8.1, 8.2, 8.3, the fiber suspensions are dewatered, which in this example forms a web of fiber material 9 with three layers of fibers.
  • the web of fibrous material 9 is first transported in the direction of the arrow over a horizontal section then further over a sloping section on the belt 10. After the sloping section, the web of fibrous material 9 is passed around a roller 12 upside down onto a further circulating belt 14, which is also guided around several rollers 13.
  • the belts 10 and 14 run at least partially approximately parallel, the distance between the belts 10, 14 being greater than the thickness of the web of fibrous material 9.
  • the belts 10, 14 can also be arranged at such a distance that the web is compressed from fiber 9.
  • at least one water bar 17 is arranged within the revolving belt 10, with which the web of fibrous material 9 is pre-consolidated and detached from the belt 10.
  • the associated suction device 18 is located within the circulating belt 14. Downstream of the fiber material 9 and below the inclined screen former 1 with the circulating belt 10, there is another circulating belt 16 on which the fibrous web 9 is further processed.
  • the circumferential belt 16 is arranged in such a way that there is no overlap or running parallel to the belt 10.
  • An infeed roller 21 is arranged between the belts 14 and 16, via which a fleece 20 is introduced under the web of fibrous material 9 onto the circulating belt 16. Since the web of fibrous material 9 is transported upside down by the circulating belt 10 after the sloping section, the upper side of the web of fibrous material 9 is deposited on the fleece 20.
  • the fleece 20 is unwound from a store or a roll of material.
  • a card can also be arranged with which the fleece 20 can be fed directly into the in Figure 1 Solidification plant shown is introduced.
  • the distances between the rollers 13, 21 and 15 are kept small on the one hand to minimize the gusset for the further transport of the fibrous material 9, on the other hand the infeed roller 21 can be designed to be adjustable in order to introduce the fleece 20 quickly.
  • the final connection between the nonwoven 20 and the fibrous material 9 takes place in the area of the belt 16 in that at least one water bar 17 connects the fibrous material 9 to the nonwoven 20 and compresses it.
  • the water jet from the water beam 17 hits the fibrous material 9, which is connected to the fleece 20.
  • a revolving belt 10 in which a fiber application 4 is arranged over an inclined section 11, with which, for example, pulp can be applied as loose fibers.
  • a fiber application 4 is arranged over an inclined section 11, with which, for example, pulp can be applied as loose fibers.
  • the web of fibrous material 9 is transported onward over a horizontal section in the direction of material flow to a sloping section, and passed overhead over a roller 12 onto a fleece 20. So that the dry fibers do not slip off the belt 10, a fiber moistening system (not shown) can be arranged, for example, on the horizontal section of the belt 10, so that the loose composite of dry fibers has a certain strength.
  • the fleece 20 can likewise be unwound from a roll or supplied directly from a carding machine.
  • the delivery of the fleece 20 takes place in the area of the roller 12 in such a way that a first compacting takes place between the fleece 20 and the web of fibrous material 9.
  • This connection is reinforced on a subsequent belt 14 by at least one water beam 17.
  • the following belt 14 is arranged below the belt 10 and runs at least partially parallel to it.
  • the distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the web of fibrous material 9.
  • the fleece 20 can also be applied to the belt 14 via an infeed roller 21, the web out in the area of the infeed roller 21 Fibrous material 9 is deposited upside down on the fleece 20.
  • the embodiment of Figure 3 likewise shows two circumferential belts 10, 14 which are at least partially arranged in parallel, the circumferential belt 14 being arranged below the belt 10.
  • a web of fibers is applied to the belt 10 via a fiber application 4 or via an inclined wire former 1.
  • an infeed roller 21 is arranged, via which a fleece 20 is applied to the web of fibrous material 9.
  • a compaction takes place between the fleece 20 and the fibrous material 9, although the distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the fibrous material 9.
  • FIG. 3a shows in a further arrangement at least one water bar 17 within the belt 10, whereby the web of fibrous material 9 is detached from the belt 10. There is no compaction at this point, since the distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the fibrous material 9.
  • the embodiment in Figure 3b shows a suction drum 22, which is acted upon by at least one water beam 17, instead of the infeed roller 21.
  • the web of fibrous material 9 is thus consolidated with the nonwoven fabric 20, with subsequent compaction between the nonwoven fabric 20 and the fibrous material 9 due to the deflection around the roller 12.
  • the subsequent water bars 17 within the band 10 also ensure a complete detachment of the fibrous material 9 from the band 10, since here too the distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the fibrous material 9.
  • the subsequent further consolidation between the fleece 20 and the web of fibrous material 9 takes place in an area on the belt 14 in which the belts 10, 14 no longer run parallel.
  • the embodiment of Figure 4 also shows in the area of a sloping section an infeed roller 21 around which a fleece 20 is brought into contact with the web of fibrous material 9. Over a Subsequent deflection by a roller 12, a compaction takes place between the fleece 20 and the web of fibrous material 9. Instead of being deposited directly on a belt 14 arranged below the belt 10, the fleece 20 with the web of fibrous material 9 is at least partially around a suction drum 22 out, on which the fleece 20 is consolidated with the fibrous material 9 by means of a water beam 17. A subsequent roller 19 is used for further transport onto a revolving belt 14 with at least one further subsequent water beam 17.
  • the fibers 9 deposited on the belt 10 are consolidated in the first horizontal section by means of water beams 17.
  • the solidified fiber material 9 is detached from the belt 10 by a water bar 17 and transferred with its upper side to the suction drum 22 and guided around it.
  • the suction drum 22 rotates clockwise.
  • a fleece 20 is fed via an infeed roller 21 so that a connection between the fleece 20 and the underside of the fibrous material 9 takes place over a partial area of the circumference of the suction drum 22 in that at least one water bar 17 connects the two.
  • Subsequent rollers 19 ensure that it is transported further onto a further revolving belt 14, on which the fleece 20 is connected again to the fibrous material 9 by means of water bars 17.
  • a suction drum 22 is arranged in the region of the sloping section.
  • a fleece 20 is guided around the suction drum 22.
  • the fibrous material 9 is detached from the belt 10 in the area of the contact point between the fibrous material 9 and the suction drum 22.
  • the fiber material 9 is located below the fleece 20 and is on the following circumference of the suction drum 22 by means of water bar 17 with its top with the Fleece 20 solidified.
  • Rollers 19 arranged below ensure a transfer to a further revolving belt 14, which can be arranged below belt 10, with subsequent further consolidation between fleece 20 and fiber material 9 by means of water bars 17.
  • All the exemplary embodiments have in common that the fibers are laid down on the first belt 10 as loose pulp or wet-laid by means of an inclined screen former 1.
  • the fleece 20 can be fed into the system as a carded fleece from a supply roll or directly as a carded fleece from a carder in the system.
  • the fleece 20 can be produced from short or continuous fibers.
  • the connection of the fibrous material 9 with the fleece 20 does not take place in the area of a parallel guide between two bands.
  • the loose fibers do not have to be connected to the fleece upside down between two tapes. Aligning the belts to one another and synchronizing the belt speeds are therefore not necessary.
  • the two layers can be compacted by means of bands arranged in parallel. However, this is not necessary for the process and the system.
  • the water beams create a turbulence and thus solidification of the fibers with one another or, if the pressure is lower, cause the fibers or the fleece to be detached from a belt or drum.

Description

Die Erfindung betrifft eine Anlage und ein Verfahren zum Verbinden bzw. Verfestigen einer Bahn von Faserstoff mit einem Vlies mittels Wasserstrahlen, mit einem ersten umlaufenden Band, auf dem eine Bahn von Faserstoff ablegbar ist und einer Vorrichtung zum Einführen eines Vlieses in die Anlage, mit einem weiteren nachfolgenden umlaufenden Band, auf dem das Vlies mit der Bahn von Faserstoff miteinander mittels Wasserstrahlen verbindbar bzw. verfestigbar ist.The invention relates to a system and a method for connecting or solidifying a web of fiber material with a nonwoven by means of water jets, with a first circumferential belt on which a web of fiber material can be deposited and a device for introducing a nonwoven into the system, with a further subsequent circumferential belt on which the fleece with the web of fibrous material can be connected or solidified by means of water jets.

Es ist durch die EP 1929080 B1 bekannt, lose Fasern mit einem Vlies zu verbinden, in dem die losen Fasern immer durch ein Band von unten gestützt und geführt werden und dabei gleichzeitig auf einem Vlies abgelegt werden. Dieses Verfahren und die dazugehörige Anlage sind sehr aufwändig, da eine absolut parallele Führung der Bänder über einen längeren Abschnitt erforderlich ist. Dies ist konstruktiv sehr aufwändig umzusetzen, da zwischen den Bändern eine konstante Spannung erforderlich ist und beide Bänder an jeder Stelle eine identische Geschwindigkeit aufweisen müssen, um keine unkontrollierten Verzüge in das Endprodukt zu bringen.It's through that EP 1929080 B1 known to connect loose fibers with a fleece, in which the loose fibers are always supported and guided by a tape from below and are simultaneously deposited on a fleece. This method and the associated system are very complex, since an absolutely parallel guidance of the strips over a longer section is required. This is structurally very complex to implement, since constant tension is required between the belts and both belts must have an identical speed at every point in order not to introduce uncontrolled distortions into the end product.

Die WO 2004/097097 A1 und die WO 2005/118934 A1 offenbaren ein Verfahren zur Herstellung eines Vlieses mittels Airlaid, wobei eine Faserstoffbahn kopfüber auf einem umlaufenden Transportband abgelegt wird. Eine Stabilisierung der Faserstoffbahn erfolgt dadurch, indem eine weitere Faserstoffbahn, beispielsweise Pulp, mit einem Bindermittel mit den Airlaidfasern mittels mechanischer Kompaktierung verbunden wird. Es handelt sich um ein trockenes Verfahren, bei dem mit Hilfe eines Vakuums die Fasern abgelegt werden. Nassgelegte kurze Fasern lassen sich so nicht verarbeiten. Die EP 2116645 A1 und die US 2003/0021970 offenbaren ein Verfahren zur Herstellung eines Sandwich-Vlieses, bei ein Spunbond bzw. ein Vlies aus synthetischen Fasern zwischen zwei kardierten Vliesen abgelegt und verfestigt wird. Nassgelegte kurze Fasern lassen sich so nicht verarbeiten.The WO 2004/097097 A1 and the WO 2005/118934 A1 disclose a method for producing a fleece by means of airlaid, a fibrous web being deposited upside down on a circulating conveyor belt. The fibrous web is stabilized in that a further fibrous web, for example pulp, is connected to the airlaid fibers with a binding agent by means of mechanical compaction. It is a dry process in which the fibers are deposited with the help of a vacuum. Wet laid short fibers cannot be processed in this way. The EP 2116645 A1 and the US 2003/0021970 disclose a method for the production of a sandwich fleece, in which a spunbond or a fleece made of synthetic fibers is deposited between two carded fleeces and solidified. Wet laid short fibers cannot be processed in this way.

Nach der US2013/0157537 A werden nassgelegte Fasern mit der Unterseite mit einem Vlies mittels Wasserstrahlen verfestigt und weiterverarbeitet.After US2013 / 0157537 A Wet-laid fibers are solidified with the underside with a fleece using water jets and processed further.

Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und eine Anlage zur Verbindung einer Bahn von losen Fasern mit einem Vlies zu schaffen, mit der eine kompakte und preiswerte Anlage herstellbar ist.The object of the present invention is to create a method and a system for connecting a web of loose fibers with a fleece, with which a compact and inexpensive system can be produced.

Die Erfindung löst die gestellte Aufgabe durch die Lehren nach den Ansprüchen 1, 2, 4, 10, 11 und 14; weitere vorteilhafte Ausgestaltungsmerkmale der Erfindung sind durch die Unteransprüche gekennzeichnet.The invention solves the problem set by the teachings of claims 1, 2, 4, 10, 11 and 14; further advantageous design features of the invention are characterized by the subclaims.

Gemäß der technischen Lehre nach Anspruch 1 umfasst die Anlage zum Verbinden bzw. Verfestigen einer Bahn von Fasern mit einem Vlies mittels Wasserstrahlen mindestens ein erstes umlaufendes Band, auf dem eine Bahn von Faserstoff ablegbar ist und eine Vorrichtung zum Einführen eines Vlieses in die Anlage, dem ein weiteres nachfolgendes umlaufendes Band nachgeordnet ist, auf dem das Vlies mit der Bahn von Faserstoff miteinander mittels Wasserstrahlen verbindbar bzw. verfestigbar ist.According to the technical teaching of claim 1, the system for connecting or solidifying a web of fibers with a fleece by means of water jets comprises at least one first circumferential belt on which a web of fiber material can be placed and a device for introducing a fleece into the system, the another subsequent revolving belt is arranged downstream, on which the fleece with the web of fibrous material can be connected or solidified by means of water jets.

Die Erfindung ist dadurch gekennzeichnet, dass die Bahn von Faserstoff vom ersten umlaufenden Band zuerst auf dem Vlies ablegbar ist und anschließend der Faserstoff zusammen mit dem Vlies auf das nachfolgende Band zur Verbindung bzw. Verfestigung mittels Wasserstrahlen übergeben wird.The invention is characterized in that the web of fibrous material from the first circumferential belt can first be deposited on the fleece and then the fibrous material together with the fleece is transferred to the subsequent belt for connection or solidification by means of water jets.

Damit wird eine sehr einfache Bandführung realisiert, bei dem die Bahn von Faserstoff und das Vlies nicht durch ein zweites umlaufendes Band gekammert zusammengeführt werden müssen. Weiterhin erfolgt die Verbindung des Faserstoffes mit dem Vlies nicht im Bereich einer parallelen Führung zwischen zwei Bändern. Die losen Fasern müssen damit im Gegensatz zum Stand der Technik nicht kopfüber zwischen zwei Bändern ausgerichtet und mit dem Vlies verbunden werden. Ein Ausrichten der Bänder zueinander und eine Synchronisation der Bandgeschwindigkeiten sind damit nicht notwendig.This results in a very simple tape guide, in which the web of fibrous material and the fleece do not have to be brought together in a chamber by a second circumferential tape. The connection of the Fibrous material with the fleece not in the area of a parallel guide between two bands. In contrast to the prior art, the loose fibers do not have to be aligned upside down between two bands and connected to the fleece. Aligning the belts to one another and synchronizing the belt speeds are therefore not necessary.

Der Begriff Ablegen des Faserstoffes auf dem Vlies setzt nicht voraus, dass das Vlies eine annähernd waagerechte Position einnehmen muss, damit die losen Fasern bzw. die Bahn aus Faserstoff auf dem Vlies übergeben werden und eine erste Verbindung eingehen. Es reicht hierzu, dass beispielsweise auf dem schräg abfallenden Abschnitt des umlaufenden Bandes ein erster Kontakt zwischen dem Vlies und der Bahn aus Faserstoff hergestellt wird, so dass die Adhäsion zwischen den Schichten eine erste leichte Verbindung bewirkt, auch wenn das Vlies räumlich oberhalb des Faserstoffes angeordnet ist.The term “depositing the fibrous material on the fleece” does not require that the fleece has to assume an approximately horizontal position so that the loose fibers or the web of fibrous material are transferred to the fleece and form a first connection. For this purpose, it is sufficient that, for example, on the sloping section of the circumferential belt, a first contact is made between the fleece and the web of fibrous material, so that the adhesion between the layers causes a first light connection, even if the fleece is arranged spatially above the fibrous material is.

Die Verbindung zwischen dem Vlies und dem Faserstoff erfolgt durch Wasserstrahlen, wobei gleichzeitig eine Verfestigung des Faserstoffes in sich, aber auch mit dem Vlies erfolgt, da die Fasern miteinander und ineinander verwirbeln. In diesem Zusammenhang bedeutet das Verbinden von Vlies und Faserstoff auch gleichzeitig eine Verfestigung.The connection between the fleece and the fibrous material takes place by means of water jets, whereby at the same time a solidification of the fibrous material in itself, but also with the fleece takes place, since the fibers swirl with and into each other. In this context, the joining of nonwoven and fiber material also means consolidation at the same time.

In vorteilhafter Ausführungsform wird die Bahn von Faserstoff mit ihrer Oberseite auf ein umlaufendes Band übergeben, das vor dem weiteren nachfolgenden Band zur Wasserstrahlverfestigung angeordnet ist. Damit erfolgt eine Stützung und Übergabe von sehr leichten Faserstoffen auf ein vorzugsweise horizontal oder schräg angeordnetes Band aus einer Überkopfposition, bevor das Vlies in die Anlage eingeführt und mit dem Faserstoff verbunden wird. Dieses Überkopfablegen ermöglicht die Verbindung der Oberseite des Faserstoffes mit dem Vlies, wodurch die ebene Unterseite des Faserstoffes auf die Außenseite des Produktes gelangt und dieses eine optisch bessere Qualität erreicht.In an advantageous embodiment, the web of fibrous material is transferred with its upper side onto a circumferential belt which is arranged in front of the further following belt for hydroentangling. In this way, very light fibrous materials are supported and transferred onto a preferably horizontal or inclined belt from an overhead position before the fleece is introduced into the system and connected to the fibrous material. This overhead laying enables the connection of the upper side of the fiber material with the fleece, whereby the flat underside of the fiber material reaches the outside of the product and this achieves a visually better quality.

Vorzugsweise ist die Vorrichtung zum Einführen des Vlieses in die Anlage zwischen den Bändern angeordnet. Es ergibt sich eine platzsparende Lösung, bei der der Faserstoff zuerst kopfüber auf einem weiteren Band abgelegt und dann mit der Oberseite auf dem Vlies ablegbar ist, bevor beides zusammen verbunden und verfestigt wird.The device for introducing the fleece into the system is preferably arranged between the belts. The result is a space-saving solution in which the fiber material is first placed upside down on a further belt and can then be placed with the upper side on the fleece, before the two are connected and solidified together.

Die Anordnung der Vorrichtung zum Einführen des Vlieses im Bereich einer Walze des umlaufenden Bandes hat den Vorteil, dass die Oberseite der Bahn aus Faserstoff auf dem Vlies abgelegt wird und der Faserstoff zwischen der Walze und dem einlaufenden Vlies kompaktiert wird. Dies setzt natürlich voraus, dass die Walze des umlaufenden Bandes als Umlenkwalze angeordnet ist, um die das Band seine Richtung ändert. Dadurch, dass der Faserstoff mit dem Vlies um einen Umlenkwinkel um die Walze geführt wird, erfolgt ein erstes Verpressen oder Kompaktieren des Faserstoffes. Hierzu wird das Vlies mit einer definierten Vorspannung in die Anlage eingeführt, um einen minimalen Anpressdruck auf den Faserstoff zu erzeugen.The arrangement of the device for introducing the fleece in the area of a roller of the circulating belt has the advantage that the upper side of the web of fibrous material is placed on the fleece and the fibrous material is compacted between the roller and the incoming fleece. Of course, this assumes that the roller of the circulating belt is arranged as a deflection roller around which the belt changes its direction. Because the fibrous material with the fleece is guided around the roller by a deflection angle, the fibrous material is first compressed or compacted. For this purpose, the fleece is introduced into the system with a defined pre-tension in order to generate minimal contact pressure on the fiber material.

In einer ersten Variante kann die Vorrichtung zum Einführen des Vlieses in die Anlage als Walze ausgebildet sein. Damit lässt sich in freier räumlicher Anordnung eine Abwickelvorrichtung oder eine Krempel in die Anlage integrieren, wobei das Vlies direkt oder indirekt über weitere Walzen in die Anlage einlaufen kann.In a first variant, the device for introducing the fleece into the system can be designed as a roller. In this way, an unwinding device or a carding device can be integrated into the system in a free spatial arrangement, whereby the fleece can enter the system directly or indirectly via further rollers.

In einer zweiten Variante kann die Vorrichtung zum Einführen des Vlieses in die Anlage als Saugtrommel ausgebildet sein, wobei vorteilhafterweise die Saugtrommel mit mindestens einem ersten Düsenbalken ausgestattet ist, so dass hier eine erste Verbindung bzw. Verfestigung zwischen Vlies und Faserstoff erfolgen kann.In a second variant, the device for introducing the fleece into the system can be designed as a suction drum, the suction drum advantageously being equipped with at least one first nozzle bar, so that a first connection or solidification between the fleece and fiber material can take place here.

Die Anordnung der Saugtrommel in Materialtransportrichtung nach der Walze ermöglicht eine mehrstufige Verbindung bzw. Verfestigung von dem Faserstoff mit dem Vlies.The arrangement of the suction drum in the direction of material transport after the roller enables a multi-stage connection or consolidation of the fibrous material with the fleece.

Hierzu kann in vorteilhafter Weise in Materialtransportrichtung die Saugtrommel zwischen dem ersten umlaufenden Band und dem nachfolgenden Band zur Verbindung/Verfestigung des Faserstoffes mit dem Vlies angeordnet sein, wobei der Faserstoff mit seiner Oberseite an die Saugtrommel übergeben wird, und das Vlies derart in die Anlage eingeführt wird, dass mittels Wasserstrahlen die Unterseite des Faserstoffes mit dem Vlies verbindbar bzw. verfestigbar ist. Diese Alternative ermöglicht neben der mehrstufigen Verfestigung verschiedene Varianten in der Oberflächenstruktur des Endproduktes.For this purpose, the suction drum can advantageously be arranged in the material transport direction between the first revolving belt and the subsequent belt for connecting / solidifying the fibrous material with the fleece, the fibrous material being transferred with its upper side to the suction drum, and the fleece being introduced into the system in this way is that by means of water jets, the underside of the fiber material can be connected or solidified with the fleece. In addition to the multi-stage hardening, this alternative enables different variants in the surface structure of the end product.

Die andere Möglichkeit sieht vor, dass in Materialtransportrichtung die Saugtrommel zwischen dem ersten umlaufenden Band und dem nachfolgenden Band zur Verbindung/Verfestigung des Faserstoffes mit dem Vlies angeordnet ist, wobei der Faserstoff mit seiner Oberseite an die Saugtrommel übergeben wird und ein Vlies derart in die Anlage eingeführt wird, dass mittels Wasserstrahlen die Oberseite des Faserstoffes mit dem Vlies verbunden bzw. verfestigt wird.The other possibility provides that the suction drum is arranged in the material transport direction between the first revolving belt and the following belt for connecting / solidifying the fibrous material with the fleece, the fibrous material being transferred with its upper side to the suction drum and a fleece in this way into the system is introduced that by means of water jets, the upper side of the fibrous material is connected or solidified with the fleece.

In vorteilhafter Ausführungsform kann innerhalb des umlaufenden Bandes, auf dem der lose Faserstoff abgelegt wird, mindestens ein Wasserbalken angeordnet sein, um die Bahn von Faserstoff vom Band zu lösen.In an advantageous embodiment, at least one water bar can be arranged within the revolving belt on which the loose fiber material is deposited in order to detach the web of fiber material from the belt.

Vorzugsweise ist der Abstand zwischen dem umlaufenden Band, auf dem der lose Faserstoff abgelegt wird, und dem Band, auf dem das Vlies mit dem Faserstoff mittels Wasserstrahlen verbunden wird, größer als die Dicke des Vlieses mit dem darauf abgelegten Faserstoff. Damit wird eine Kompaktierung bzw. ein Kammern zwischen zwei Bändern verhindert, da in Folge beide Bänder genau ausgerichtet und synchronisiert werden müssten. Genau dies soll durch die erfindungsgemäße Anlagenkonfiguration verhindert werden.Preferably, the distance between the revolving belt on which the loose fiber material is deposited and the belt on which the fleece is connected to the fiber material by means of water jets is greater than the thickness of the fleece with the fiber material deposited thereon. This prevents compaction or chambers between two belts, since both belts would have to be precisely aligned and synchronized as a result. This is exactly what is to be prevented by the system configuration according to the invention.

Das erfindungsgemäße Verfahren zum Verbinden bzw. Verfestigen einer Bahn von Faserstoff mit einem Vlies mittels Wasserstrahlen sieht vor, dass eine Bahn von Faserstoff auf einem ersten umlaufenden Band ablegbar ist, und dass ein Vlies zur Verbindung mit der Bahn von Faserstoff in die Anlage einführbar ist, wobei das Vlies mit der Bahn von Faserstoff auf einem weiteren nachfolgenden umlaufenden Band miteinander mittels Wasserstrahlen verbindbar bzw. verfestigbar ist. Dabei wird zuerst die Bahn von Faserstoff auf dem Vlies abgelegt und anschließend der Faserstoff zusammen mit dem Vlies auf das weitere nachfolgende Band zur Verbindung bzw. Verfestigung mittels Wasserstrahlen übergeben. Damit ist eine absolut verzugsfreie Verbindung zwischen dem losen Faserstoff und dem Vlies möglich, da beide nicht durch zwei parallel angeordnete Bänder kompaktiert werden, die absolut parallel und miteinander synchronisiert laufen müssen.The method according to the invention for connecting or consolidating a web of fibrous material with a fleece by means of water jets provides that a web of fibrous material can be placed on a first circumferential belt, and that a fleece for connection with the web of fibrous material can be introduced into the system, wherein the fleece with the web of fibrous material can be connected or solidified to one another by means of water jets on a further following circumferential belt. First, the web of fibrous material is placed on the fleece and then the fibrous material together with the fleece is transferred to the next following belt for connection or solidification by means of water jets. This enables an absolutely distortion-free connection between the loose fiber material and the fleece, since both are not compacted by two belts arranged in parallel, which have to run absolutely parallel and synchronized with one another.

Insbesondere bei sehr leichten und kurzen Fasern kann die Bahn von Faserstoff mit seiner Oberseite auf ein umlaufendes Band übergeben werden, das vor dem weiteren nachfolgenden Band zur Wasserstrahlverfestigung angeordnet ist. Der Faserstoff wird damit erst Überkopf auf das nachfolgende Band übergeben und dann erst mit dem Vlies verbunden.Particularly in the case of very light and short fibers, the web of fibrous material can be transferred with its upper side onto a circumferential belt which is arranged in front of the further following belt for hydroentangling. The fiber material is first transferred overhead to the following belt and only then connected to the fleece.

Die Erfindung wird anhand der beiliegenden Zeichnungen beispielhaft erläutert.

Fig.1:
zeigt eine erste Ausführungsform der erfindungsgemäßen Anlage und des Verfahrens;
Fig. 2:
zeigt eine zweite Ausführungsform der erfindungsgemäßen Anlage und des Verfahrens;
Fig. 3:
zeigt eine dritte Ausführungsform der erfindungsgemäßen Anlage und des Verfahrens;
Fig. 3a:
zeigt eine weitere Variante der dritten Ausführungsform
Fig. 3b:
zeigt eine weitere Variante der dritten Ausführungsform
Fig. 4:
zeigt eine vierte Ausführungsform der erfindungsgemäßen Anlage und des Verfahrens;
Fig. 5:
zeigt eine fünfte Ausführungsform der erfindungsgemäßen Anlage und des Verfahrens;
Fig. 6:
zeigt eine sechste Ausführungsform der erfindungsgemäßen Anlage und des Verfahrens.
The invention is explained by way of example with reference to the accompanying drawings.
Fig. 1:
shows a first embodiment of the plant and the method according to the invention;
Fig. 2:
shows a second embodiment of the plant and the method according to the invention;
Fig. 3:
shows a third embodiment of the plant and the method according to the invention;
Fig. 3a:
shows a further variant of the third embodiment
Fig. 3b:
shows a further variant of the third embodiment
Fig. 4:
shows a fourth embodiment of the plant and the method according to the invention;
Fig. 5:
shows a fifth embodiment of the plant and the method according to the invention;
Fig. 6:
shows a sixth embodiment of the plant and the method according to the invention.

Ein Schrägsiebformer 1 ist unterhalb eines umlaufenden Siebbandes 10 angeordnet. Das Siebband 10, das als endloses Band ausgeführt sein kann, läuft um verschiedene Walzen 12 herum und weist einen schrägen Abschnitt 11 auf, der in Laufrichtung des Siebbandes um den Winkel a ansteigt. Im Bereich des schrägen Abschnittes 11 ist unterhalb des Siebbandes 10 der Schrägsiebformer 1 angeordnet, auf dessen Belag 2 sich das Siebband 10 abstützt. Unterhalb des Belages 2 ist mindestens eine Saugzone 3 angeordnet, die mittels nicht dargestellter Pumpen unter Unterdruck gesetzt wird. Der Schrägsiebformer 1 kann mehrere Saugzonen 3 aufweisen, die mit unterschiedlichen Drücken bzw. Unterdrücken beaufschlagt werden. Die Unterdruckquellen können vorzugsweise als steuer-/regelbare Vakuumpumpen ausgeführt werden.An inclined screen former 1 is arranged below a rotating screen belt 10. The screen belt 10, which can be designed as an endless belt, runs around various rollers 12 and has an inclined section 11 which rises in the running direction of the screen belt by the angle a. In the area of the inclined section 11, the inclined screen former 1 is arranged below the screen belt 10, on its covering 2 the screen belt 10 is supported. At least one suction zone 3, which is placed under negative pressure by means of pumps (not shown), is arranged below the covering 2. The inclined screen former 1 can have a plurality of suction zones 3 to which different pressures or negative pressures are applied. The vacuum sources can preferably be designed as controllable / regulatable vacuum pumps.

In diesem Ausführungsbeispiel werden über einen Stoffauflauf 8 drei übereinander angeordnete Fasersuspensionen 8.1, 8.2 und 8.3 auf das Siebband 10 gegeben. Jede Fasersuspension 8.1, 8.2 und 8.3 enthält neben Wasser einen bestimmten Gehalt an Feststoff, der wiederum aus Fasern und aus anderen Zuschlagstoffen besteht. Zwischen den Fasersuspensionen 8.1, 8.2, 8.3 sind nicht dargestellte Lamellen angeordnet, mit denen die Schichtdicke der Fasersuspensionen einzeln oder in Summe variiert werden kann. Da die Lamellen die Fasersuspensionen 8.1, 8.2 und 8.3 voneinander separieren, werden diese nacheinander auf dem Schrägsiebformer 1 entwässert. Damit wird eine Vermischung der Fasersuspensionen 8.1, 8.2 und 8.3 verhindert und die Lagenreinheit der einzelnen Schichten Faserstoff verbessert. Über die mindestens eine Saugzone in Verbindung mit den steuer-/regelbaren Vakuumpumpen kann jede Schicht einer Fasersuspension 8.1, 8.2 und 8.3 einem separaten Unterdruck ausgesetzt werden, womit unterschiedliche Mischungen von Wasser mit Fasern in jeder Fasersuspension verarbeitet werden kann.In this exemplary embodiment, three fiber suspensions 8.1, 8.2 and 8.3 arranged one above the other are placed on the screen belt 10 via a headbox 8. Each fiber suspension 8.1, 8.2 and 8.3 contains, in addition to water, a certain content of solids, which in turn consists of fibers and other additives. Between the fiber suspensions 8.1, 8.2, 8.3 lamellae (not shown) are arranged with which the layer thickness of the fiber suspensions can be varied individually or in total. Since the lamellae separate the fiber suspensions 8.1, 8.2 and 8.3 from one another, they are dewatered one after the other on the inclined wire former 1. This prevents the fiber suspensions 8.1, 8.2 and 8.3 from mixing and improves the purity of the individual layers of fiber material. Via the at least one suction zone in connection with the controllable / regulatable vacuum pumps, each layer of a fiber suspension 8.1, 8.2 and 8.3 can be exposed to a separate negative pressure, with which different mixtures of water with fibers can be processed in each fiber suspension.

In diesem Ausführungsbeispiel können die Fasersuspensionen 8.1 und 8.3, die bei der weiteren Verarbeitung die äußeren Schichten oder die Deckschicht für die mittlere Schicht an Fasersuspension 8.2 bildet, zumindest teilweise aus kurzen synthetischen Fasern wie beispielsweise Polyester, Polyamid oder Polyolefin bestehen. Auch Fasermischungen aus synthetischen und natürlichen Fasern sind möglich. Ebenso können die äußeren Schichten auch aus 100 % Pulp bestehen. Die mittlere Fasersuspension kann aus natürlichen Fasern bestehen, die ein hohes Wasserrückhaltevermögen aufweisen.In this embodiment, the fiber suspensions 8.1 and 8.3, which form the outer layers or the cover layer for the middle layer of fiber suspension 8.2 during further processing, can at least partly consist of short synthetic fibers such as polyester, polyamide or polyolefin. Mixtures of synthetic and natural fibers are also possible. The outer layers can also consist of 100% pulp. The middle Fiber suspension can consist of natural fibers that have a high water retention capacity.

Die Dicke der Lagen ist durch die Lamellen einstellbar, indem die Aufgabe der Fasersuspensionen 8.1, 8.2 und 8.3 über den Stoffauflauf 8 variiert werden kann. Bei einem Sandwich-Vlies können beispielsweise gleich dicke Lagen hergestellt werden, oder die Lagen können mit einer Abstufung von beispielsweise 10 %, 80 % und 10 % Dicke hergestellt werden. Indirekt lässt sich darüber auch das Flächengewicht jeder Lage Faserstoff 9 einstellen.The thickness of the layers can be adjusted by means of the lamellae in that the task of the fiber suspensions 8.1, 8.2 and 8.3 via the headbox 8 can be varied. In the case of a sandwich fleece, for example, layers of the same thickness can be produced, or the layers can be produced with a gradation of, for example, 10%, 80% and 10% thickness. The weight per unit area of each layer of fibrous material 9 can also be set indirectly via this.

Selbstverständlich kann auch nur eine Fasersuspension aufgegeben werden, so dass sich nach dem Abziehen von Wasser eine einzige Lage von Fasern bildet.Of course, only one fiber suspension can be applied so that a single layer of fibers is formed after the water has been drawn off.

Das Siebband 10, das durchlässig für Flüssigkeiten und Gase ist, transportiert die übereinander angeordneten Fasersuspensionen 8.1, 8.2 und 8.3 über den schrägen Abschnitt 11 über den Schrägsiebformer 1. Aufgrund der Schwerkraft und des Unterdruckes, der auf die Fasersuspensionen 8.1, 8.2, 8.3 wirkt, werden die Fasersuspensionen entwässert, wodurch sich in diesem Beispiel eine Bahn aus Faserstoff 9 mit drei Lagen Fasern bildet.The sieve belt 10, which is permeable to liquids and gases, transports the fiber suspensions 8.1, 8.2 and 8.3 arranged one above the other via the inclined section 11 over the inclined screen former 1. Due to the force of gravity and the negative pressure that acts on the fiber suspensions 8.1, 8.2, 8.3, the fiber suspensions are dewatered, which in this example forms a web of fiber material 9 with three layers of fibers.

Die Bahn aus Faserstoff 9 wird in Pfeilrichtung erst über einen horizontalen Abschnitt dann weiter über einen schräg abfallenden Abschnitt auf dem Band 10 transportiert. Nach dem schräg abfallenden Abschnitt wird die Bahn aus Faserstoff 9 um eine Walze 12 kopfüber auf ein weiteres umlaufendes Band 14 übergeben, das ebenfalls um mehrere Walzen 13 geführt wird. Die Bänder 10 und 14 laufen zumindest teilweise annähernd parallel, wobei der Abstand zwischen den Bändern 10, 14 größer ist, als die Dicke der Bahn aus Faserstoff 9. Alternativ können die Bänder 10, 14 auch in so einem Abstand angeordnet werden, dass die Bahn aus Faserstoff 9 komprimiert wird. In dem Bereich, in dem die Bänder 10 und 14 parallel laufen, ist innerhalb des umlaufenden Bandes 10 mindestens ein Wasserbalken 17 angeordnet, mit der die Bahn aus Faserstoff 9 vorverfestigt und vom Band 10 abgelöst wird. Die zugehörige Absaugung 18 befindet sich innerhalb des umlaufenden Bandes 14. In Materiallaufrichtung des Faserstoffes 9 nachgeordnet und unterhalb des Schrägsiebformers 1 mit dem umlaufenden Band 10 ist ein weiteres umlaufendes Band 16 angeordnet, auf dem die Bahn aus Faserstoff 9 weiterverarbeitet wird. Das umlaufende Band 16 ist so angeordnet, dass keine Überlappung oder ein paralleles Laufen zum Band 10 vorhanden ist. Zwischen den Bändern 14 und 16 ist eine Einlaufwalze 21 angeordnet, über die ein Vlies 20 unter die Bahn aus Faserstoff 9 auf das umlaufende Band 16 eingeführt wird. Da die Bahn aus Faserstoff 9 durch das umlaufende Band 10 nach dem schräg abfallenden Abschnitt kopfüber weiter transportiert wird, wird die Oberseite der Bahn aus Faserstoff 9 auf dem Vlies 20 abgelegt. In diesem Ausführungsbeispiel wird das Vlies 20 von einem Speicher bzw. einer Materialrolle abgewickelt. Alternativ kann anstatt der Vliesrolle auch eine Krempel angeordnet sein, mit der das Vlies 20 direkt in die in Figur 1 dargestellte Verfestigungsanlage eingeführt wird. Die Abstände zwischen den Walzen 13, 21 und 15 werden einerseits klein gehalten, um den Zwickel für den Weitertransport des Faserstoffes 9 zu minimieren, andererseits kann die Einlaufwalze 21 verstellbar ausgeführt sein, um das Vlies 20 schnell einzuführen. Die endgültige Verbindung zwischen dem Vlies 20 und dem Faserstoff 9 erfolgt im Bereich des Bandes 16, indem mindestens ein Wasserbalken 17 den Faserstoff 9 mit dem Vlies 20 verbindet und komprimiert. Dabei trifft der Wasserstrahl des Wasserbalkens 17 auf den Faserstoff 9, der mit dem Vlies 20 verbunden wird.The web of fibrous material 9 is first transported in the direction of the arrow over a horizontal section then further over a sloping section on the belt 10. After the sloping section, the web of fibrous material 9 is passed around a roller 12 upside down onto a further circulating belt 14, which is also guided around several rollers 13. The belts 10 and 14 run at least partially approximately parallel, the distance between the belts 10, 14 being greater than the thickness of the web of fibrous material 9. Alternatively, the belts 10, 14 can also be arranged at such a distance that the web is compressed from fiber 9. In the area where the Belts 10 and 14 run parallel, at least one water bar 17 is arranged within the revolving belt 10, with which the web of fibrous material 9 is pre-consolidated and detached from the belt 10. The associated suction device 18 is located within the circulating belt 14. Downstream of the fiber material 9 and below the inclined screen former 1 with the circulating belt 10, there is another circulating belt 16 on which the fibrous web 9 is further processed. The circumferential belt 16 is arranged in such a way that there is no overlap or running parallel to the belt 10. An infeed roller 21 is arranged between the belts 14 and 16, via which a fleece 20 is introduced under the web of fibrous material 9 onto the circulating belt 16. Since the web of fibrous material 9 is transported upside down by the circulating belt 10 after the sloping section, the upper side of the web of fibrous material 9 is deposited on the fleece 20. In this exemplary embodiment, the fleece 20 is unwound from a store or a roll of material. Alternatively, instead of the fleece roll, a card can also be arranged with which the fleece 20 can be fed directly into the in Figure 1 Solidification plant shown is introduced. The distances between the rollers 13, 21 and 15 are kept small on the one hand to minimize the gusset for the further transport of the fibrous material 9, on the other hand the infeed roller 21 can be designed to be adjustable in order to introduce the fleece 20 quickly. The final connection between the nonwoven 20 and the fibrous material 9 takes place in the area of the belt 16 in that at least one water bar 17 connects the fibrous material 9 to the nonwoven 20 and compresses it. The water jet from the water beam 17 hits the fibrous material 9, which is connected to the fleece 20.

In Figur 2 ist ein umlaufendes Band 10 dargestellt, bei dem über einem schrägen Abschnitt 11 ein Faserauftrag 4 angeordnet ist, mit dem beispielsweise Pulp als lose Fasern aufgegeben werden. Im Gegensatz zum Ausführungsbeispiel der Figur 1 können hier nicht nur nass gelegte Fasern verarbeitet werden, sondern auch trockene Fasern. Die Bahn aus Faserstoff 9 wird über einen horizontalen Abschnitt in Materialflussrichtung zu einem schräg abfallenden Abschnitt weiter transportiert, und über eine Walze 12 kopfüber auf ein Vlies 20 übergeben. Damit die trockenen Fasern nicht von dem Band 10 rutschen, kann beispielsweise auf dem horizontalen Abschnitt des Bandes 10 eine nicht dargestellte Faserbefeuchtung angeordnet sein, damit der lose Verbund aus trockenen Fasern eine gewisse Festigkeit bekommt.In Figure 2 a revolving belt 10 is shown, in which a fiber application 4 is arranged over an inclined section 11, with which, for example, pulp can be applied as loose fibers. In contrast to the embodiment of Figure 1 Not only wet laid fibers can be processed here, but also dry fibers. The web of fibrous material 9 is transported onward over a horizontal section in the direction of material flow to a sloping section, and passed overhead over a roller 12 onto a fleece 20. So that the dry fibers do not slip off the belt 10, a fiber moistening system (not shown) can be arranged, for example, on the horizontal section of the belt 10, so that the loose composite of dry fibers has a certain strength.

Das Vlies 20 kann in diesem Ausführungsbeispiel ebenfalls von einer Rolle abgewickelt oder von einer Krempel direkt zugeliefert werden. Die Zulieferung des Vlieses 20 erfolgt im Bereich der Walze 12 derart, dass eine erste Kompaktierung zwischen dem Vlies 20 und der Bahn aus Faserstoff 9 erfolgt. Diese Verbindung wird auf einem nachfolgenden Band 14 durch mindestens einen Wasserbalken 17 verstärkt. Dass nachfolgende Band 14 ist unterhalb des Bandes 10 angeordnet und läuft mit diesem zumindest teilweise parallel. Der Abstand zwischen den Bändern 10, 14 ist größer, als die Dicke des Vlieses 20 mit der Bahn aus Faserstoff 9. Alternativ kann das Vlies 20 auch über eine Einlaufwalze 21 auf das Band 14 aufgegeben werden, wobei im Bereich der Einlaufwalze 21 die Bahn aus Faserstoff 9 kopfüber auf dem Vlies 20 abgelegt wird.In this exemplary embodiment, the fleece 20 can likewise be unwound from a roll or supplied directly from a carding machine. The delivery of the fleece 20 takes place in the area of the roller 12 in such a way that a first compacting takes place between the fleece 20 and the web of fibrous material 9. This connection is reinforced on a subsequent belt 14 by at least one water beam 17. The following belt 14 is arranged below the belt 10 and runs at least partially parallel to it. The distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the web of fibrous material 9. Alternatively, the fleece 20 can also be applied to the belt 14 via an infeed roller 21, the web out in the area of the infeed roller 21 Fibrous material 9 is deposited upside down on the fleece 20.

Das Ausführungsbeispiel der Figur 3 zeigt ebenfalls zwei umlaufende Bänder 10, 14 die zumindest teilweise parallel angeordnet sind, wobei das umlaufende Band 14 unterhalb des Bandes 10 angeordnet ist. Auch hier wird auf dem Band 10 eine Bahn aus Fasern über einen Faserauftrag 4 oder über ein Schrägsiebformer 1 aufgegeben. Im Bereich eines schräg abfallenden Abschnittes des Bandes 10 ist eine Einlaufwalze 21 angeordnet, über die ein Vlies 20 an die Bahn aus Faserstoff 9 angelegt wird. Durch eine nachfolgende Walze 12, mit der die Bahn aus Faserstoff 9 und das Vlies 20 auf ein annähernd horizontales Band 14 umgelenkt wird, erfolgt eine Kompaktierung zwischen dem Vlies 20 und dem Faserstoff 9, obwohl der Abstand zwischen den Bändern 10, 14 größer ist, als die Dicke des Vlieses 20 mit dem Faserstoff 9. Erst nachdem das Vlies 20 mit dem Faserstoff 9 den Bereich zwischen den Bändern 10, 14 verlassen hat und nur noch auf dem Band 14 aufliegt, erfolgt die endgültige Verfestigung mittels mindestens eines Wasserbalkens 17 zwischen dem Vlies 20 und dem Faserstoff 9. Eine zugehörige Absaugung 18 ist innerhalb des umlaufenden Bandes 14 angeordnet.The embodiment of Figure 3 likewise shows two circumferential belts 10, 14 which are at least partially arranged in parallel, the circumferential belt 14 being arranged below the belt 10. Here, too, a web of fibers is applied to the belt 10 via a fiber application 4 or via an inclined wire former 1. In the area of a sloping section of the belt 10, an infeed roller 21 is arranged, via which a fleece 20 is applied to the web of fibrous material 9. By a subsequent roller 12 with which the web of fibrous material 9 and the fleece 20 are deflected onto an approximately horizontal belt 14 is, a compaction takes place between the fleece 20 and the fibrous material 9, although the distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the fibrous material 9. Only after the fleece 20 with the fibrous material 9 has passed the area between the Has left the belts 10, 14 and only rests on the belt 14, the final consolidation takes place by means of at least one water bar 17 between the fleece 20 and the fibrous material 9. An associated suction device 18 is arranged within the circumferential belt 14.

Eine weitere Ausführungsvariante in Figur 3a zeigt in einer weiteren Anordnung mindestens einen Wasserbalken 17 innerhalb des Bandes 10, wodurch die Bahn aus Faserstoff 9 vom Band 10 abgelöst wird. Es erfolgt an dieser Stelle keine Kompaktierung, da der Abstand zwischen den Bändern 10, 14 größer ist, als die Dicke des Vlieses 20 mit dem Faserstoff 9.Another variant in Figure 3a shows in a further arrangement at least one water bar 17 within the belt 10, whereby the web of fibrous material 9 is detached from the belt 10. There is no compaction at this point, since the distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the fibrous material 9.

Das Ausführungsbeispiel in Figur 3b zeigt anstelle der Einlaufwalze 21 eine Saugtrommel 22, die durch mindestens einen Wasserbalken 17 beaufschlagt wird. Damit erfolgt eine Verfestigung der Bahn aus Faserstoff 9 mit dem Vlies 20, wobei anschließend durch die Umlenkung um die Walze 12 eine Kompaktierung zwischen dem Vlies 20 und dem Faserstoff 9 erfolgt. Die nachfolgenden Wasserbalken 17 innerhalb des Bandes 10 sorgen ebenfalls für ein vollständiges Ablösen des Faserstoffes 9 vom Band 10, da auch hier der Abstand zwischen den Bändern 10, 14 größer ist als die Dicke des Vlieses 20 mit dem Faserstoff 9. Die nachfolgende weitere Verfestigung zwischen dem Vlies 20 und der Bahn aus Faserstoff 9 erfolgt in einem Bereich auf dem Band 14, bei dem die Bänder 10, 14 nicht mehr parallel verlaufen.The embodiment in Figure 3b shows a suction drum 22, which is acted upon by at least one water beam 17, instead of the infeed roller 21. The web of fibrous material 9 is thus consolidated with the nonwoven fabric 20, with subsequent compaction between the nonwoven fabric 20 and the fibrous material 9 due to the deflection around the roller 12. The subsequent water bars 17 within the band 10 also ensure a complete detachment of the fibrous material 9 from the band 10, since here too the distance between the bands 10, 14 is greater than the thickness of the fleece 20 with the fibrous material 9. The subsequent further consolidation between the fleece 20 and the web of fibrous material 9 takes place in an area on the belt 14 in which the belts 10, 14 no longer run parallel.

Das Ausführungsbeispiel der Figur 4 zeigt ebenfalls im Bereich eines abfallenden Abschnittes eine Einlaufwalze 21, um die ein Vlies 20 mit der Bahn aus Faserstoff 9 in Verbindung gebracht wird. Über eine nachfolgende Umlenkung durch eine Walze 12 erfolgt eine Kompaktierung zwischen dem Vlies 20 und der Bahn aus Faserstoff 9. Statt direkt auf ein unterhalb des Bandes 10 angeordnetes Band 14 abgelegt zu werden, wird das Vlies 20 mit der Bahn aus Faserstoff 9 zumindest teilweise um eine Saugtrommel 22 geführt, auf der mittels Wasserbalken 17 das Vlies 20 mit dem Faserstoff 9 verfestigt wird. Über eine nachfolgende Walze 19 erfolgt ein Weitertransport auf ein umlaufendes Band 14 mit mindestens einem weiteren nachfolgenden Wasserbalken 17.The embodiment of Figure 4 also shows in the area of a sloping section an infeed roller 21 around which a fleece 20 is brought into contact with the web of fibrous material 9. Over a Subsequent deflection by a roller 12, a compaction takes place between the fleece 20 and the web of fibrous material 9. Instead of being deposited directly on a belt 14 arranged below the belt 10, the fleece 20 with the web of fibrous material 9 is at least partially around a suction drum 22 out, on which the fleece 20 is consolidated with the fibrous material 9 by means of a water beam 17. A subsequent roller 19 is used for further transport onto a revolving belt 14 with at least one further subsequent water beam 17.

In dem Ausführungsbeispiel der Figur 5 werden die auf dem Band 10 abgelegten Faser 9 im ersten horizontalen Abschnitt mittels Wasserbalken 17 verfestigt. Im Bereich des abfallenden Abschnittes wird der verfestigte Faserstoff 9 durch einen Wasserbalken 17 vom Band 10 abgelöst und mit seiner Oberseite an die Saugtrommel 22 übergeben und um diese herum geführt. In diesem Ausführungsbeispiel dreht sich die Saugtrommel 22 im Uhrzeigersinn. Unterhalb der Saugtrommel 22 wird ein Vlies 20 über eine Einlaufwalze 21 zugeführt, so dass über einen Teilbereich des Umfanges der Saugtrommel 22 eine Verbindung zwischen dem Vlies 20 und der Unterseite des Faserstoffes 9 erfolgt, indem mindestens ein Wasserbalken 17 beides miteinander verbindet. Nachfolgende Walzen 19 sorgen für einen Weitertransport auf ein weiteres umlaufendes Band 14, auf dem das Vlies 20 mit dem Faserstoff 9 mittels Wasserbalken 17 nochmals verbunden wird.In the embodiment of Figure 5 the fibers 9 deposited on the belt 10 are consolidated in the first horizontal section by means of water beams 17. In the area of the sloping section, the solidified fiber material 9 is detached from the belt 10 by a water bar 17 and transferred with its upper side to the suction drum 22 and guided around it. In this embodiment, the suction drum 22 rotates clockwise. Below the suction drum 22, a fleece 20 is fed via an infeed roller 21 so that a connection between the fleece 20 and the underside of the fibrous material 9 takes place over a partial area of the circumference of the suction drum 22 in that at least one water bar 17 connects the two. Subsequent rollers 19 ensure that it is transported further onto a further revolving belt 14, on which the fleece 20 is connected again to the fibrous material 9 by means of water bars 17.

Auch in dem Ausführungsbeispiel der Figur 6 ist im Bereich des abfallenden Abschnittes eine Saugtrommel 22 angeordnet. Ein Vlies 20 wird um die Saugtrommel 22 geführt. Der Faserstoff 9 wird im Bereich des Berührungspunktes zwischen dem Faserstoff 9 und der Saugtrommel 22 von dem Band 10 abgelöst. Dabei befindet sich der Faserstoff 9 unterhalb des Vlieses 20 und wird auf dem nachfolgenden Umfang der Saugtrommel 22 mittels Wasserbalken 17 mit seiner Oberseite mit dem Vlies 20 verfestigt. Nachfolgend angeordnete Walzen 19 sorgen für eine Übergabe auf ein weiteres umlaufendes Band 14, das unterhalb des Bandes 10 angeordnet sein kann, wobei nachfolgend eine weitere Verfestigung zwischen Vlies 20 und Faserstoff 9 mittels Wasserbalken 17 erfolgen kann.Also in the embodiment of Figure 6 a suction drum 22 is arranged in the region of the sloping section. A fleece 20 is guided around the suction drum 22. The fibrous material 9 is detached from the belt 10 in the area of the contact point between the fibrous material 9 and the suction drum 22. The fiber material 9 is located below the fleece 20 and is on the following circumference of the suction drum 22 by means of water bar 17 with its top with the Fleece 20 solidified. Rollers 19 arranged below ensure a transfer to a further revolving belt 14, which can be arranged below belt 10, with subsequent further consolidation between fleece 20 and fiber material 9 by means of water bars 17.

Allen Ausführungsbeispielen ist gemeinsam, dass die Fasern als loser Pulp oder nassgelegt mittels eines Schrägsiebformers 1 auf dem ersten Band 10 abgelegt werden. Das Vlies 20 kann als kardiertes Vlies von einer Vorratsrolle in die Anlage oder direkt als Krempelvlies von einer Krempel der Anlage zugeführt werden. Das Vlies 20 kann aus kurzen oder endlosen Fasern herstellbar sein. Weiterhin erfolgt die Verbindung des Faserstoffes 9 mit dem Vlies 20 nicht im Bereich einer parallelen Führung zwischen zwei Bändern. Die losen Fasern müssen damit im Gegensatz zum Stand der Technik nicht kopfüber zwischen zwei Bändern mit dem Vlies verbunden werden. Ein Ausrichten der Bänder zueinander und eine Synchronisation der Bandgeschwindigkeiten sind damit nicht notwendig. Zwar kann nach der ersten Verbindung zwischen dem Vlies 20 und dem Faserstoff 9 eine Kompaktierung der beiden Lagen mittels parallel angeordneter Bänder erfolgen. Dies ist aber für das Verfahren und die Anlage nicht notwendig. Die Wasserbalken erzeugen mit den Hochdruckwasserstrahlen eine Verwirbelung und damit Verfestigung der Fasern untereinander oder sorgen bei einem geringeren Druck für ein Ablösen der Fasern oder des Vlieses von einem Band oder einer Trommel.All the exemplary embodiments have in common that the fibers are laid down on the first belt 10 as loose pulp or wet-laid by means of an inclined screen former 1. The fleece 20 can be fed into the system as a carded fleece from a supply roll or directly as a carded fleece from a carder in the system. The fleece 20 can be produced from short or continuous fibers. Furthermore, the connection of the fibrous material 9 with the fleece 20 does not take place in the area of a parallel guide between two bands. In contrast to the prior art, the loose fibers do not have to be connected to the fleece upside down between two tapes. Aligning the belts to one another and synchronizing the belt speeds are therefore not necessary. After the first connection between the fleece 20 and the fibrous material 9, the two layers can be compacted by means of bands arranged in parallel. However, this is not necessary for the process and the system. With the high-pressure water jets, the water beams create a turbulence and thus solidification of the fibers with one another or, if the pressure is lower, cause the fibers or the fleece to be detached from a belt or drum.

BezugszeichenReference number

11
SchrägsiebformerInclined wire former
22
BelagTopping
33
SaugzoneSuction zone
44th
FaserauftragFiber application
55
SaugkastenSuction box
66
SiebwasserWhite water
88th
StoffauflaufHeadbox
8.18.1
FasersuspensionFiber suspension
8.28.2
FasersuspensionFiber suspension
8.38.3
FasersuspensionFiber suspension
99
FaserstoffPulp
1010
Bandtape
1111
schräger Abschnittsloping section
1212
Walzeroller
1313
Walzeroller
1414th
Bandtape
1515th
Walzeroller
1616
Bandtape
1717th
WasserbalkenWater beam
1818th
AbsaugungSuction
1919th
Walzeroller
2020th
Vliesfleece
2121st
EinlaufwalzeInfeed roller
2222nd
SaugtrommelSuction drum

Claims (18)

  1. An installation for bonding, respectively entangling a web of fibres with a nonwoven by water jets, with a first circulating belt (10), on which a web of fibre material (9) can be deposited, and a device for introducing a nonwoven (20) into the installation, with a further following circulating belt, on which the nonwoven (20) can be bonded, respectively entangled with the web of fibre material (9) by water jets, wherein the web of fibre material (9) from the first circulating belt (10) at first can be deposited on the nonwoven (20) and then the fibre material (9) together with the nonwoven (20) is delivered to the following belt for bonding, respectively entangling by water jets, characterized in that the web of fibre material (9) is delivered with the upper side thereof to a circulating belt (14), which is disposed upstream the further following belt (16) for hydroentangling, and the device for introducing the nonwoven (20) into the installation is disposed between the belts (14) and (16).
  2. The installation for bonding, respectively entangling a web of fibres with a nonwoven by water jets, with a first circulating belt (10), on which a web of fibre material (9) can be deposited, and a device for introducing a nonwoven (20) into the installation, with a further following circulating belt, on which the nonwoven (20) can be bonded, respectively entangled with the web of fibre material (9) by water jets, wherein the web of fibre material (9) from the first circulating belt (10) at first can be deposited on the nonwoven (20) and then the fibre material (9) together with the nonwoven (20) is delivered to the following belt for bonding, respectively entangling by water jets, characterized in that the device for introducing the nonwoven (20) is disposed in the area of a roll (12) of the circulating belt (10), wherein the upper side of the web of fibre material (9) is deposited on the nonwoven (20), and the fibre material (9) is compacted between the roll (12) and the incoming nonwoven (20), wherein the distance between the circulating belt (10) and the belt (14) is greater than the thickness of the nonwoven (20) with the fibre material (9) deposited thereon, and in that at least one water bar (17) is disposed within the circulating belt (10) for detaching the web of fibre material (9) from the belt (10).
  3. The installation according to any of the preceding claims, characterized in that the device for introducing the nonwoven (20) into the installation is formed as a roll (21).
  4. The installation for bonding, respectively entangling a web of fibres with a nonwoven by water jets, with a first circulating belt (10), on which a web of fibre material (9) can be deposited, and a device for introducing a nonwoven (20) into the installation, with a further following circulating belt, on which the nonwoven (20) can be bonded, respectively entangled with the web of fibre material (9) by water jets, wherein the web of fibre material (9) from the first circulating belt (10) at first can be deposited on the nonwoven (20) and then the fibre material (9) together with the nonwoven (20) is delivered to the following belt for bonding, respectively entangling by water jets, characterized in that the device for introducing the nonwoven (20) into the installation is formed as a suction drum (22), and at the suction drum at least one water bar (17) bonds, respectively entangles the nonwoven (20) with the fibre material (9) the first time.
  5. The installation according to claim 4, characterized in that, in material transport direction, the suction drum (22) is disposed downstream the roll (21).
  6. The installation according to claim 4, characterized in that, in material transport direction, the suction drum (22) is disposed between the first circulating belt (10) and the following belt (14) for bonding/entangling the fibre material (9) with the nonwoven (20), wherein the fibre material (9) with the upper side thereof is delivered to the suction drum (22), and the web (20) is introduced into the installation in such a way that the water jets are able to bond, respectively entangle the underside of the fibre material (9) with the nonwoven (20).
  7. The installation according to claim 4, characterized in that, in material transport direction, the suction drum (22) is disposed between the first circulating belt (10) and the following belt (14) for bonding/entangling the fibre material (9) with the nonwoven (20), wherein the fibre material (9) with the upper side thereof is delivered to the suction drum (22), and wherein a nonwoven (20) is introduced into the installation in such a way that the water jets bond, respectively entangle the upper side of the fibre material (9) with the nonwoven (20).
  8. The installation according to any of the claims 1 or 4, characterized in that at least one water bar (17) is disposed within the circulating belt (10), in order to detach the web of fibre material (9) from the belt (10).
  9. The installation according to any of the claims 1 or 4, characterized in that the distance between the circulating belt (10) and the belt (14) is greater than the thickness of the nonwoven (20) with the fibre material (9) deposited thereupon.
  10. A method for bonding, respectively entangling a web of fibre material with a nonwoven by water jets, in which a web of fibre material (9) can be deposited on a first circulating belt (10), and a nonwoven (20) for bonding with the web of fibre material (9) is introducible into the installation, wherein the nonwoven (20) can be bonded, respectively entangled with the web of fibre material (9) on a further following circulating belt by water jets, wherein at first the web of fibre material (9) can be deposited on the nonwoven (20) and then the fibre material (9) together with the nonwoven (20) is delivered to the following belt for bonding, respectively entangling by water jets, characterized in that the web of fibre material (9) with the upper side thereof is delivered to a circulating belt (14), which is disposed upstream the further following belt (16) for hydroentangling, and the nonwoven (20) is introduced between the belts (14) and (16) into the installation and thereby the fibre material (9) is deposited on the nonwoven (20).
  11. The method for bonding, respectively entangling a web of fibre material with a nonwoven by water jets, in which a web of fibre material (9) can be deposited on a first circulating belt (10), and a nonwoven (20) for bonding with the web of fibre material (9) is introducible into the installation, wherein the nonwoven (20) can be bonded, respectively entangled with the web of fibre material (9) on a further following circulating belt (14) by water jets, wherein at first the web of fibre material (9) can be deposited on the nonwoven (20), and then the fibre material (9) together with the nonwoven (20) is delivered to the following belt (14) for bonding, respectively entangling by water jets, characterized in that the nonwoven (20) is introduced into the installation in the area of a roll (12) of the first circulating belt (10), wherein the upper side of the web of fibre material (9) is deposited on the nonwoven (20), and the fibre material (9) is compacted between the roll (12) and the incoming nonwoven (20), wherein the distance between the circulating belt (10) and the belt (14) is greater than the thickness of the nonwoven (20) with the fibre material (9) deposited thereon, and in that water jets detach the web of fibre material (9) from the belt (10).
  12. The method according to claim 11, characterized in that the nonwoven (20) in the area of a roll (21) is introduced into the installation, wherein the upper side of the web of fibre material (9) is deposited on the nonwoven (9), and the fibre material (9) with the nonwoven (20) is deposited on a further circulating belt (14 or 16) for bonding and entangling by water jets.
  13. The method according to claim 11, characterized in that the fibre material (9) is compacted between a roll (12) of the circulating belt (10) and the nonwoven (20).
  14. The method for bonding, respectively entangling a web of fibre material with a nonwoven by water jets, in which a web of fibre material (9) can be deposited on a first circulating belt (10), and a nonwoven (20) for bonding with the web of fibre material (9) is introducible into the installation, wherein the nonwoven (20) can be bonded, respectively entangled with the web of fibre material (9) on a further following circulating belt by water jets, wherein at first the web of fibre material (9) can be deposited on the nonwoven (20) and then the fibre material (9) together with the nonwoven (20) is delivered to the further following belt for bonding, respectively entangling by water jets, characterized in that the roll is formed as a suction drum (22), and at the suction drum a water bar (17) bonds, respectively entangles the nonwoven (20) for the first time.
  15. The method according to claim 14, characterized in that, in material transport direction, a suction drum (22) is disposed downstream the roll (21) for bonding, respectively entangling the fibre material (9) with the nonwoven (20) by water jets.
  16. The method according to claim 14, characterized in that the fibre material (9) with the upper side thereof is delivered to a suction drum (22) and is bonded, respectively entangled with the nonwoven (20) by water jets with the underside of the fibre material (9), wherein, in material transport direction, the suction drum (22) is disposed between the first circulating belt (10) and the following belt (14).
  17. The method according to any of the preceding claims 14 to 16, characterized in that the fibre material (9) with the upper side thereof is delivered to a suction drum (22) and is bonded, respectively entangled with the nonwoven (20) by water jets with the upper side of the fibre material (9), wherein, in material transport direction, the suction drum (22) is disposed between the first circulating belt (10) and the following belt (14).
  18. The method according to any of the preceding claims 10 or 14, characterized in that water jets detach the web of fibres (9) from the belt (10).
EP16702664.0A 2015-04-13 2016-02-04 Plant and method for connecting a web of fibrous material to a nonwoven or consolidating it therewith Active EP3283679B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015004506 2015-04-13
DE102015112955.8A DE102015112955A1 (en) 2015-04-13 2015-08-06 Plant and method for connecting or solidifying a web of pulp with a nonwoven
PCT/EP2016/000178 WO2016165798A1 (en) 2015-04-13 2016-02-04 Plant and method for connecting a web of fibrous material to a nonwoven or consolidating it therewith

Publications (2)

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EP3283679A1 EP3283679A1 (en) 2018-02-21
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DE102021107900A1 (en) 2021-03-29 2022-09-29 Andritz Küsters Gmbh Plant for consolidating layers comprising fibers to form a fleece web

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DE102021107901A1 (en) 2021-03-29 2022-09-29 Andritz Küsters Gmbh Plant and method for bonding layers comprising fibers to form a non-woven web
DE102021107900A1 (en) 2021-03-29 2022-09-29 Andritz Küsters Gmbh Plant for consolidating layers comprising fibers to form a fleece web
EP4067549A1 (en) 2021-03-29 2022-10-05 Andritz Küsters GmbH System and method for consolidating layers comprising fibres to a nonwoven web
EP4067548A1 (en) 2021-03-29 2022-10-05 Andritz Küsters GmbH System for consolidating layers comprising fibres to a nonwoven web
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DE102015112955A1 (en) 2016-10-13
US20180112339A1 (en) 2018-04-26
US20190345654A1 (en) 2019-11-14
US10968551B2 (en) 2021-04-06
CN107438682B (en) 2020-03-27
WO2016165798A1 (en) 2016-10-20
EP3283679A1 (en) 2018-02-21
CN107438682A (en) 2017-12-05
US10718076B2 (en) 2020-07-21

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