EP1668177A1 - Method for hydrodynamically solidifying an essentially homogenous layer made of fibres of any particular type and system for carrying out said method - Google Patents

Method for hydrodynamically solidifying an essentially homogenous layer made of fibres of any particular type and system for carrying out said method

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Publication number
EP1668177A1
EP1668177A1 EP04766703A EP04766703A EP1668177A1 EP 1668177 A1 EP1668177 A1 EP 1668177A1 EP 04766703 A EP04766703 A EP 04766703A EP 04766703 A EP04766703 A EP 04766703A EP 1668177 A1 EP1668177 A1 EP 1668177A1
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EP
European Patent Office
Prior art keywords
strips
nozzle
solidified
width
slots
Prior art date
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Granted
Application number
EP04766703A
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German (de)
French (fr)
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EP1668177B1 (en
Inventor
Ullrich MÜNSTERMANN
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Truetzschler Nonwovens GmbH
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Fleissner GmbH
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Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Priority to PL04766703T priority Critical patent/PL1668177T3/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
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • 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
    • D04H1/495—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 for formation of patterns, e.g. drilling or rearrangement
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet

Definitions

  • WO 02/052083 it is known to store even three-dimensional finite goods such as intermediate or intermediate products between two nonwovens to connect by hydrodynamic needling the superficial webs by entangling the fibers to solidify and thereby enclose the goods.
  • the trapping can be done by a single intermittently controlled nozzles but also by a continuous curtain of water from a nozzle bar, which is partially effective by means of an all-round template. It is also thought to provide the nozzle bar with a nozzle strip which is only partially perforated to bring a pattern in the web.
  • the invention has for its object to find a method by which a single web containing an homogeneous mixture of possibly different fibers, but also alone z. B. may consist of cotton, so solidify that the central region remains voluminous, while the edge regions are fully solidified.
  • a web - shaped fleece continuously emerging from at least two Dusenbalken liquid jets by a Liquid from fine, arranged in series nozzle orifices of at least two extending over the working width nozzle strip in two nozzle beams against the leading to the nozzle bar fleece is sprayed with high pressure
  • the solution of the problem is achieved in that of a nonwoven laying device, such as carding, incoming fleece is first fully solidified at least on the surface, and then pre-consolidated on this, and thus also again vorlegbare fleece in a continuous two-stage hydrodynamic solidification process only along spaced longitudinal strips and superimposed equally spaced transverse strips by means of a plurality of rows of water jets and is solidified by solid.
  • the full-surface pre-consolidation - as with the Nähwirkmaschine or with the water needling - can be done in a different machine park with subsequent winding of the now transportable fleece, but more advantageous is a continuous treatment to achieve the finished product in a system with adapted speeds of the individual machines ,
  • the solidification of the fleece should therefore only take place at certain points. These locations are along spaced strips in both the transverse and longitudinal directions. When the fleece is subsequently cut along these strips, the result is a continuous, manipulable, finite fleece product whose edges are compacted all around, but whose middle region remains voluminous, as achieved in the pre-consolidation. Thus, fraying of a voluminous finite piece of nonwoven fabric during further treatment can be avoided.
  • the plant for the production of the web consists with respect to the solidification of a stencil drum or a stencil endless belt with spaced slots along the drum or a Endlosba ⁇ des for the horizontal stripes with internally arranged nozzle beam and from a directly associated with the fleece wide ren nozzle beam, the nozzle strip spaced apart rows of perforations for the longitudinal strips.
  • Fig. 2 is a view of the two fully solidifying water needling
  • Fig. 3 is a plan view of the treated web with the individual obtained by the water needling strips
  • Fig. 4 is a plan view of a bulky nonwoven product with fixed edge strips after the assembly of the web.
  • a nonwoven 1 coming from a carding or similar nonwoven laying machine which can be formed from the most varied fibers, but here cotton is preferred, is laid on an endless belt 2 which transports the nonwoven through the solidifying system indicated in FIG.
  • the loose non-manipulatable nonwoven fabric is to be solidified over the entire surface in such a way that, while its volume decreases, its maximum retention remains.
  • a full-surface water needling can be used, but remains after solidification, the volume is not so optimal.
  • a stencil drum 4 in the interior of which a water bar 5 extends longitudinally, serves for this purpose.
  • the over the entire length of the water bar 5 against the template effluent water jets 6 are transmitted only along the slots 7 provided here and then meet the web 1 'for full solidification in the region of these slots 7.
  • the longitudinally of the stencil drum 4 respectively adjacent slots 7 produce in their sum transverse strips 9 on the web 1. For this purpose, they are separated in relation to the slot-shaped opening 7 of only a small web 8.
  • the slots can z. B. have a width A of 95 mm, while the web 8 between two slots 7 may have a width B of 5 mm.
  • the longitudinal strip production takes place in the example.
  • a normal water bar 10 is provided, the nozzle strip for generating the water jets 6 'is not perforated over its entire length, but according to FIG. 2 only in sections, so that over the surface of the web longitudinal strips 11 arise.
  • the longitudinal strips 1 1 are in their on - Order on the surface of the web to the interruptions of the transverse strips 9 in the loading area of the webs 8 coordinated in the template 4. It is expedient to produce the longitudinal strips 1 1 on the web 1 where there is no solidification in the stencil treatment.
  • the width C of the longitudinal strips 1 1 can cover the width B of the interruptions due to the webs 8.
  • the longitudinal strips have a width C of 10 mm, while the width B of the webs is 5 mm.
  • a karoförmige solidification which arises all around a region 12, which is not hit by the water jets.
  • the fleece can now be cut longitudinally and transversely, specifically in the area of full consolidation along the strips 9 and 11. This results in quadrilateral nonwoven products as shown in FIG. 4, which are fully solidified at the edges, the central region 12, however, is bulky. Products of this kind are z. B. needed in the hygiene industry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Inorganic Fibers (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

A finite product made of nonwoven material is obtained and the edges thereof are completely solidified, however the central area remains voluminous. This is achieved by advantageous hydrodynamic hardening devoid of binding agents, whereby the nonwoven material exiting from a nonwoven material placement device, such as a carding device, is initially solidified at least on the surface thereon and previously solidified and re-placeable nonwoven material is fully solidified thereon in a continuous double-stepped hydrodynamic hardening process exclusively along longitudinal strips which are arranged at a distance and over-lapping transversal strips which are also arranged at a distance by means of a plurality of rows of water jets. The nonwoven material is cut after treatment in the positions where full solidification occurs, whereupon products are created.

Description

Verfahren zum hydrodynamischen Verfestigen einer im wesentlichen homogenen Schicht aus Fasern beliebiger Art und Anlage zur Durchführung des VerfahrensProcess for the hydrodynamic solidification of a substantially homogeneous layer of fibers of any type and equipment for carrying out the process
Durch die WO 02/052083 ist es bekannt, auch dreidimensionale endliche Güter wie Vor- oder Zwischenprodukte zwischen zwei Vliese zu lagern, durch hydrodynamische Vernadelung die aufeinanderliegenden Vliese durch Verfilzen der Fasern zu verbinden, zu verfestigen und dadurch die Güter einzuschließen. Das Einschließen kann durch einzelne intermittierend angesteuerte Düsen aber auch durch einen kontinuierlichen Wasservorhang aus einem Düsenbalken erfolgen, der mittels einer rundum laufenden Schablone partiell wirksam ist. Es ist auch daran gedacht, den Düsenbalken mit einem Düsenstreifen zu versehen, der nur abschnittsweise gelocht ist, um ein Muster in das Vlies zu bringen.By WO 02/052083 it is known to store even three-dimensional finite goods such as intermediate or intermediate products between two nonwovens to connect by hydrodynamic needling the superficial webs by entangling the fibers to solidify and thereby enclose the goods. The trapping can be done by a single intermittently controlled nozzles but also by a continuous curtain of water from a nozzle bar, which is partially effective by means of an all-round template. It is also thought to provide the nozzle bar with a nozzle strip which is only partially perforated to bring a pattern in the web.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu finden, mit dem ein einzelnes Vlies, das eine homogenische Mischung aus ggf. verschiedenen Fasern enthält, aber auch allein z. B. aus Baumwolle bestehen kann, so zu verfestigen, dass der mittlere Bereich voluminös verbleibt, während die Randbereiche voll verfestigt sind.The invention has for its object to find a method by which a single web containing an homogeneous mixture of possibly different fibers, but also alone z. B. may consist of cotton, so solidify that the central region remains voluminous, while the edge regions are fully solidified.
Ausgehend von einem Verfahren zum hydrodynamischen Verfestigen einer im wesentlichen homogenen Schicht aus Fasern beliebiger Art, wie insbesondere natürlichen, aber auch und/oder künstlichen Fasern endlicher oder endloser Art, also eines bahn - förmigen Vlieses mittels kontinuierlich aus zumindest zwei Dusenbalken austretenden Flüssigkeitsstrahlen, indem eine Flüssigkeit aus feinen, in Reihe angeordneten Düsenöffnungen von zumindest zwei über die Arbeitsbreite sich erstreckenden Düsenstreifen in zwei Düsenbalken gegen das gegenüber den Düsenbalken vorlaufende Vlies mit Hochdruck gespritzt wird, wird die Lösung der gestellten Aufgabe dadurch erreicht, dass das von einer Vlieslegeeinrichtung, wie Krempel, kommende Vlies zunächst voll flächig zumindest an der Oberfläche verfestigt wird, und dann auf dieses vorfestigte, und somit auch erneut vorlegbare Vlies in einem kontinuierlichen zweistufigen hydrodynamischen Verfestigungsvorgang nur entlang von beabstandeten Längsstreifen und überlagerten ebenfalls beabstandeten Querstreifen mittels jeweils mehreren Reihen von Wasserstrahlen voll und durch verfestigt wird.Starting from a method for the hydrodynamic solidification of a substantially homogeneous layer of fibers of any kind, such as in particular natural, but also and / or artificial fibers of finite or endless type, ie a web - shaped fleece continuously emerging from at least two Dusenbalken liquid jets by a Liquid from fine, arranged in series nozzle orifices of at least two extending over the working width nozzle strip in two nozzle beams against the leading to the nozzle bar fleece is sprayed with high pressure, the solution of the problem is achieved in that of a nonwoven laying device, such as carding, incoming fleece is first fully solidified at least on the surface, and then pre-consolidated on this, and thus also again vorlegbare fleece in a continuous two-stage hydrodynamic solidification process only along spaced longitudinal strips and superimposed equally spaced transverse strips by means of a plurality of rows of water jets and is solidified by solid.
Die vollflächige Vorverfestigung - wie mit dem Nähwirkverfahren oder auch mit dem Wasservernadeln - kann in einem anderen Maschinenpark mit anschließender Aufwicklung des jetzt transportierbaren Vlieses erfolgen, vorteilhafter ist jedoch eine kontinuierliche Behandlung bis zur Erzielung des Fertigproduktes in einer Anlage mit an- gepassten Geschwindigkeiten der einzelnen Maschinen.The full-surface pre-consolidation - as with the Nähwirkverfahren or with the water needling - can be done in a different machine park with subsequent winding of the now transportable fleece, but more advantageous is a continuous treatment to achieve the finished product in a system with adapted speeds of the individual machines ,
Die volle Verfestigung des Vlieses soll also nur an bestimmten Stellen erfolgen. Diese Stellen verlaufen entlang von beabstandeten Streifen, sowohl in Quer- als auch in Längsrichtung. Wenn dann später entlang dieser Streifen das Vlies zertrennt, geschnitten wird, entsteht auf kontinuierlichem Wege ein manipulierbares, endliches Vliesprodukt, dessen Ränder rundum verdichtet sind, dessen mittlerer Bereich jedoch - wie bei der Vorfestigung erzielt - voluminös verbleibt. Damit kann ein Ausfransen eines voluminösen endlichen Vliesstückes bei der Weiterbehandlung vermieden werden.The solidification of the fleece should therefore only take place at certain points. These locations are along spaced strips in both the transverse and longitudinal directions. When the fleece is subsequently cut along these strips, the result is a continuous, manipulable, finite fleece product whose edges are compacted all around, but whose middle region remains voluminous, as achieved in the pre-consolidation. Thus, fraying of a voluminous finite piece of nonwoven fabric during further treatment can be avoided.
Die Anlage zur Herstellung des Vlieses besteht bezüglich der Vollverfestigung aus einer Schablonentrommel oder einem Schablonenendlosband mit beabstandeten Schlitzen längs der Trommel oder eines Endlosbaπdes für die Querstreifen mit innen angeordnetem Düsenbalken und aus einem unmittelbar dem Vlies zugeordneten weite ren Düsenbalken, dessen Düsenstreifen mit Abstand voneinander angeordnete Reihen von Perforationen für die Längsstreifen aufweist.The plant for the production of the web consists with respect to the solidification of a stencil drum or a stencil endless belt with spaced slots along the drum or a Endlosbaπdes for the horizontal stripes with internally arranged nozzle beam and from a directly associated with the fleece wide ren nozzle beam, the nozzle strip spaced apart rows of perforations for the longitudinal strips.
Die Erfindung ist anhand einer Zeichnung beispielhaft erläutert. Es zeigen in schema- tischer Darstellung:The invention is explained by way of example with reference to a drawing. In a schematic representation:
Fig. 1 in der Seitenansicht eine Maschinenanlage zur Teilverfestigung eines Vlieses, Fig. 2 eine Ansicht der beiden voll verfestigenden Wasservernadelungseinrichtungen, Fig. 3 die Draufsicht des behandelten Vlieses mit den einzelnen durch die Wasservernadelung erzielten Streifen und Fig. 4 die Draufsicht auf ein voluminöses Vliesprodukt mit festen Randstreifen nach der Konfektionierung des Vlieses.2 is a view of the two fully solidifying water needling, Fig. 3 is a plan view of the treated web with the individual obtained by the water needling strips and Fig. 4 is a plan view of a bulky nonwoven product with fixed edge strips after the assembly of the web.
Ein von einer Krempel oder ähnliche Vlieslegemaschine kommendes Vlies 1 , das aus den unterschiedlichsten Fasern gebildet sein kann, hier wird jedoch Baumwolle bevorzugt, wird auf ein Endlosband 2 verlegt, das das Vlies durch die in Fig. 1 angedeutete Verfestigungsanlage transportiert. Zunächst ist das lockere, noch nicht manipulierbare Vlies vollflächig derart verfestigend zu behandeln, dass sein Volumen zwar abnimmt, jedoch maximal erhalten bleibt. Dazu ist z. B. die Nähwirktechnik anzuwenden, die mit der Einheit mit dem Bezugszeichen 3 angedeutet ist. Hier kann auch eine vollflächige Wasservernadelung zur Anwendung gelangen, jedoch verbleibt nach der Verfestigung dabei das Volumen nicht so optimal . Je nach Behandlungsgeschwindigkeit der Maschinen kann es vorteilhaft sein, das jetzt manipulierbare Vlies 1 ' aufzuwickeln und erneut der folgenden Verfestigungsanlage vorzulegen.However, a nonwoven 1 coming from a carding or similar nonwoven laying machine, which can be formed from the most varied fibers, but here cotton is preferred, is laid on an endless belt 2 which transports the nonwoven through the solidifying system indicated in FIG. First of all, the loose non-manipulatable nonwoven fabric is to be solidified over the entire surface in such a way that, while its volume decreases, its maximum retention remains. This is z. B. to apply the stitching technique, which is indicated by the unit with the reference numeral 3. Here, a full-surface water needling can be used, but remains after solidification, the volume is not so optimal. Depending on the treatment speed of the machines, it may be advantageous to wind up the now manipulatable nonwoven fabric 1 'and to submit it again to the following solidification system.
Eine volle Verfestigung erfolgt mittels einer Wasservernadelung, aber nur teilweise über die Fläche des Vlieses 1 verteilt. Dazu dient beim Beispiel zunächst eine Schablonentrommel 4, in deren Innerem sich ein Wasserbalken 5 längs erstreckt. Die über die ganze Länge des Wasserbalkens 5 gegen die Schablone ausströmenden Wasserstrahlen 6 werden nur entlang der hier vorgesehenen Schlitze 7 durchgelassen und treffen dann das Vlies 1 ' zur vollen Verfestigung im Bereich dieser Schlitze 7. Die in Längsrichtung der Schablonentrommel 4 jeweils benachbarten Schlitze 7 erzeugen in ihrer Summe Querstreifen 9 über das Vlies 1 . Dazu sind sie im Verhältnis zur schlitzförmigen Öffnung 7 von nur einem kleinen Steg 8 getrennt. Die Schlitze können z. B. eine Breite A von 95 mm haben, während der Steg 8 zwischen zwei Schlitzen 7 eine Breite B von 5 mm haben kann.Full solidification takes place by means of a water needling, but only partially distributed over the surface of the fleece 1. In the example, a stencil drum 4, in the interior of which a water bar 5 extends longitudinally, serves for this purpose. The over the entire length of the water bar 5 against the template effluent water jets 6 are transmitted only along the slots 7 provided here and then meet the web 1 'for full solidification in the region of these slots 7. The longitudinally of the stencil drum 4 respectively adjacent slots 7 produce in their sum transverse strips 9 on the web 1. For this purpose, they are separated in relation to the slot-shaped opening 7 of only a small web 8. The slots can z. B. have a width A of 95 mm, while the web 8 between two slots 7 may have a width B of 5 mm.
Im Anschluss an die Querstreifen 9 mit der Schablonenvernadelung, die auch mit einem Endlosband statt mit einer Trommel 4 erzeugt werden kann, erfolgt im Beispiel die Längsstreifenerzeugung. Dazu ist ein normaler Wasserbalken 10 vorgesehen, dessen Düsenstreifen zur Erzeugung der Wasserstrahlen 6' jedoch nicht über seine ganze Länge perforiert ist, sondern gemäß Fig. 2nur abschnittsweise, so dass über die Fläche des Vlieses Längsstreifen 11 entstehen. Die Längsstreifen 1 1 sind in ihrer An - Ordnung über die Fläche des Vlieses zu den Unterbrüchen der Querstreifen 9 im Be reich der Stege 8 in der Schablone 4 koordiniert. Es ist zweckmäßig die Längsstreifen 1 1 auf den Vlies 1 dort zu erzeugen, wo bei der Schablonenbehandlung keine Verfestigung erfolgt. Die Breite C der Längsstreifen 1 1 kann die Breite B der Unterbrüche aufgrund der Stege 8 überdecken. So können im Zusammenhang mit der oben angedeuteten Ausgestaltung der Schablone die Längsstreifen eine Breite C haben von 10 mm, während die Breite B der Stege 5 mm beträgt. Jedenfalls entsteht nach der zweiten Vernadelung mit dem Wasserbalken 10 eine karoförmige Verfestigung, die rundum eines Bereiches 12 entsteht, der von den Wasserstrahlen nicht getroffen ist.Subsequent to the transverse strips 9 with the stencil needling, which can also be produced with an endless belt instead of a drum 4, the longitudinal strip production takes place in the example. For this purpose, a normal water bar 10 is provided, the nozzle strip for generating the water jets 6 'is not perforated over its entire length, but according to FIG. 2 only in sections, so that over the surface of the web longitudinal strips 11 arise. The longitudinal strips 1 1 are in their on - Order on the surface of the web to the interruptions of the transverse strips 9 in the loading area of the webs 8 coordinated in the template 4. It is expedient to produce the longitudinal strips 1 1 on the web 1 where there is no solidification in the stencil treatment. The width C of the longitudinal strips 1 1 can cover the width B of the interruptions due to the webs 8. Thus, in connection with the above-indicated embodiment of the template, the longitudinal strips have a width C of 10 mm, while the width B of the webs is 5 mm. In any case, after the second needling with the water bar 10, a karoförmige solidification, which arises all around a region 12, which is not hit by the water jets.
Zur Konfektionierung kann nunmehr das Vlies längs und quer geschnitten werden, und zwar im Bereich der vollen Verfestigung entlang der Streifen 9 und 1 1 . Damit entstehen viereckige Vliesprodukte gemäß Fig. 4, die an den Rändern voll verfestigt sind, deren mittlerer Bereich 12 jedoch voluminös ist. Produkte dieser Art werden z. B. in der Hygieneindustrie benötigt. For confectioning, the fleece can now be cut longitudinally and transversely, specifically in the area of full consolidation along the strips 9 and 11. This results in quadrilateral nonwoven products as shown in FIG. 4, which are fully solidified at the edges, the central region 12, however, is bulky. Products of this kind are z. B. needed in the hygiene industry.

Claims

P a t e n t a n s p r ü c h e : Patent claim:
1 . Verfahren zum hydrodynamischen Verfestigen einer im wesentlichen homogenen Schicht aus Fasern beliebiger Art, wie insbesondere natürlichen, aber auch und/oder künstlichen Fasern endlicher oder endloser Art, also eines bahnförmi- gen Vlieses (1 ) mittels kontinuierlich aus zumindest zwei Düsenbalken (5, 10) austretenden Flüssigkeitsstrahlen, indem eine Flüssigkeit aus feinen, in Reihe angeordneten Düsenöffnungen von zumindest zwei über die Arbeitsbreite sich erstreckenden Düsenstreifen in zwei Düsenbalken (5, 10) gegen das gegenüber den Düsenbalken (5, 10) vorlaufende Vlies (1 ) mit Hochdruck gespritzt wird, da durch gekennzeichnet, dass das von einer Vlieslegeeinrichtung, wie Krempel, kommende Vlies (1 ) zunächst vollflächig zumindest an der Oberfläche verfestigt wird, und dann auf dieses vorfestigte, und somit auch erneut vorlegbare Vlies (1 ') in einem kontinuierlichen zweistufigen hydrodynamischen Verfestigungsvorgang nur entlang von beabstandeten Langsstreifen (1 1 ) und überlagerten ebenfalls beabstandeten Querstreifen (9) mittels jeweils mehreren Reihen von Wasserstrahlen voll und durch verfestigt wird.1 . Process for the hydrodynamic solidification of a substantially homogeneous layer of fibers of any type, in particular natural, but also and / or artificial fibers of finite or endless nature, ie a web-like web (1) by means of continuously from at least two nozzle bars (5, 10) exiting liquid jets by a liquid of fine, arranged in series nozzle orifices of at least two over the working width extending nozzle strip in two nozzle bars (5, 10) against the opposite to the nozzle bar (5, 10) leading fleece (1) is sprayed with high pressure, characterized in that the fleece (1) coming from a fleece laying device, such as carding, is first solidified over its entire surface at least on the surface, and then onto this pre-bonded fleece (1 ') which can also be re-introduced in a continuous two-stage hydrodynamic consolidation process along spaced long strips (1 1 ) and superimposed also spaced transverse strips (9) by means of a plurality of rows of water jets and solidified by solidified.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass zuerst die Qu erstreifen (9) und dann die Längsstreifen (1 1 ) hydrodynamisch genadelt werden.2. The method according to claim 1, characterized in that first the Qureif erstreif (9) and then the longitudinal strips (1 1) are hydrodynamically needled.
3. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass zuerst die Längsstrei fen und dann die Querstreifen hydrodynamisch genadelt werden. 3. The method according to claim 1, characterized in that first the Längssstrei fen and then the transverse strips are hydrodynamically needled.
4. Verfahren nach einem der Ansprüche 2 bis 3, dadurch gekennzeichnet, dass die vollflächige Vorverfestigung ebenfalls mittels der hydrodynamischen Vernadelung durchgeführt wird.4. The method according to any one of claims 2 to 3, characterized in that the full-surface pre-consolidation is also carried out by means of hydrodynamic needling.
5. Verfahren nach einem der Ansprüche 2 - 3, dadurch gekennzeichnet, dass die vollflächige Vorverfestigung nach dem Nähwirkverfahren (3) erfolgt.5. The method according to any one of claims 2 - 3, characterized in that the full-surface pre-consolidation after the Nähwirkverfahren (3).
6. Verfahren nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die vorverfestigende vollflächige Behandlung des Vlieses zusammen mit der strei- fenförmigen Vernadelung kontinuierlich unmittelbar hintereinander vollzogen wird.6. The method according to claim 4 or 5, characterized in that the pre-strengthening full-surface treatment of the nonwoven together with the strip-shaped needling is carried out continuously directly behind one another.
7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Längsstreifen (1 1 ) kontinuierlich entlang des vorlaufenden Vlieses (1 ') vernadelt werden, die Querstreifen (9) jedoch mit U nterbrüchen.7. The method according to any one of the preceding claims, characterized in that the longitudinal strips (1 1) are continuously needled along the leading web (1 '), the transverse strips (9), however, with U nterbrüchen.
8. Anlage zur Durchführung des Verfahren nach einem der Ansprüche 1 - 7 mit einem ein von einer Vlieslegeeinrichtung kommenden Vlies (1 ) zumindest zuführenden Endlosband (2) und diesem oder einer weiterführenden Trommel zugeordneten, über die Arbeitsbreite des Vlieses sich erstreckenden Düsenbalken (5, 10), aus denen die Wasserstahlen gegen das Vlies (1 ") gerichtet sind, dadurch gekennzeichnet, dass die Verfestigungsvorrichtung aus einer Schablonentrommel (4) oder einem Schablonenendlosband mit beabstandeten Schlitzen (7) längs der Trommel (4) oder Band für die Querstreifen (9) mit innen angeordnetem Dusenbalken (5) und aus einem unmittelbar dem Vlies (1 ') zugeordneten weiteren Dü senbalken (10) besteht, dessen Düsenstreifen mit Abstand voneinander angeordnete Reihen von Perforationen (6") für die Längsstreifen (1 1 ) aufweist.8. An installation for carrying out the method according to one of claims 1 - 7 with a non-woven (1) at least feeding endless belt (2) and this or a further drum associated, extending over the working width of the non-woven fabric nozzle bar (5, 10) from which the water steels are directed against the nonwoven (1 "), characterized in that the solidification device consists of a stencil drum (4) or a stencil endless belt with spaced slots (7) along the drum (4) or strip for the transverse strips ( 9) with internally arranged Dusenbalken (5) and from a directly to the fleece (1 ') associated further Dü senbalken (10) whose nozzle strip spaced apart rows of perforations (6 ") for the longitudinal strips (1 1).
9. Anlage nach Anspruch 8, dadurch gekennzeichnet, dass die Perforationen im Düsenstreifen für die Längsstreifen (1 1 ) in Koordination mit den die Schlitze (7) begrenzenden geschlossenen Stegen (8) für die Querstreifen (9 ) vorgesehen sind. 9. Plant according to claim 8, characterized in that the perforations in the nozzle strip for the longitudinal strips (1 1) in coordination with the slots (7) delimiting closed webs (8) for the transverse strips (9) are provided.
10. Anlage nach Anspruch 9, dadurch gekennzeichnet, dass die Längsstreifenverfestigung zumindest dort durchgeführt ist, wo die Querstreifen (9) wegen der Stege (8) zwischen den Schlitzen (7) Unterbrüche aufweisen.10. Plant according to claim 9, characterized in that the longitudinal strip bonding is carried out at least where the transverse strips (9) because of the webs (8) between the slots (7) have interruptions.
1 1. Anlage nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Breite (C) der Längsstreifen (1 1 ) aufgrund der Breite (B) der Perforation für die Düsenlöcher größer ist als die Breite der Stege (8) zwischen den Schlitzen (7).1 1. A plant according to claim 9 or 10, characterized in that the width (C) of the longitudinal strips (1 1) due to the width (B) of the perforation for the nozzle holes is greater than the width of the webs (8) between the slots ( 7).
12. Anlage nach Anspruch 1 1 , dadurch gekennzeichnet, dass der Abstand der Längsstreifen z. B. 90 mm und deren Breite (C) 10 mm, während die Breite (A) der Schlitze 95 mm und die Breite (B) der Stege zwischen den Schlitzen 5 mm be trägt.12. Plant according to claim 1 1, characterized in that the distance of the longitudinal strips z. B. 90 mm and the width (C) 10 mm, while the width (A) of the slots 95 mm and the width (B) of the webs between the slots contributes 5 mm be.
13. Vliesprodukt hergestellt mit dem Verfahren nach den Ansprüchen 1 - 7, dadurch gekennzeichnet, dass das viereckige Produkt ermittelt aus dem verfestigten Vlies jeweils im mittleren Bereich (12) voluminös und locker, im Randbereich aber voll verfestigt ist. 13. Nonwoven product produced by the method according to claims 1-7, characterized in that the quadrangular product determined from the solidified nonwoven in each case in the central region (12) voluminous and loose, but is fully solidified in the edge region.
EP04766703A 2003-09-25 2004-09-03 Method for hydrodynamically solidifying an essentially homogenous layer made of fibres of any particular type and system for carrying out said method Not-in-force EP1668177B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04766703T PL1668177T3 (en) 2003-09-25 2004-09-03 Method for hydrodynamically solidifying an essentially homogenous layer made of fibres of any particular type and system for carrying out said method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344672A DE10344672A1 (en) 2003-09-25 2003-09-25 Process for the hydrodynamic solidification of a substantially homogeneous layer of fibers of any type and equipment for carrying out the process
PCT/EP2004/052040 WO2005031056A1 (en) 2003-09-25 2004-09-03 Method for hydrodynamically solidifying an essentially homogenous layer made of fibres of any particular type and system for carrying out said method

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EP1668177A1 true EP1668177A1 (en) 2006-06-14
EP1668177B1 EP1668177B1 (en) 2006-12-13

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US (1) US7310860B2 (en)
EP (1) EP1668177B1 (en)
JP (1) JP2007506870A (en)
CN (1) CN101124357B (en)
AT (1) ATE348208T1 (en)
DE (2) DE10344672A1 (en)
ES (1) ES2279428T3 (en)
PL (1) PL1668177T3 (en)
WO (1) WO2005031056A1 (en)

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EP2106468A1 (en) * 2007-01-05 2009-10-07 Fleissner GmbH Method and device for the production of a one-layered or multilayered nonwoven fabric
DE202009005902U1 (en) * 2009-04-21 2009-07-02 Heumüller, Jürgen igniter
DE102015102810A1 (en) * 2015-02-27 2016-09-01 TRüTZSCHLER GMBH & CO. KG Carding machine and method for solidifying at least one batt
JP6898918B2 (en) * 2016-03-24 2021-07-07 ダイワボウホールディングス株式会社 Patterned non-woven fabric and its manufacturing method
EP3802938A1 (en) * 2018-05-25 2021-04-14 The Procter & Gamble Company Process for producing nonwoven and apparatus suitable therefor
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Publication number Publication date
DE502004002336D1 (en) 2007-01-25
ES2279428T3 (en) 2007-08-16
US20070067972A1 (en) 2007-03-29
ATE348208T1 (en) 2007-01-15
EP1668177B1 (en) 2006-12-13
US7310860B2 (en) 2007-12-25
CN101124357B (en) 2011-09-07
JP2007506870A (en) 2007-03-22
CN101124357A (en) 2008-02-13
WO2005031056A1 (en) 2005-04-07
DE10344672A1 (en) 2005-04-14
PL1668177T3 (en) 2007-05-31

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