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EP1454002A2 - Method for embossed and colourless decoration and bonding of a fabric web and device therefor - Google Patents

Method for embossed and colourless decoration and bonding of a fabric web and device therefor

Info

Publication number
EP1454002A2
EP1454002A2 EP02772389A EP02772389A EP1454002A2 EP 1454002 A2 EP1454002 A2 EP 1454002A2 EP 02772389 A EP02772389 A EP 02772389A EP 02772389 A EP02772389 A EP 02772389A EP 1454002 A2 EP1454002 A2 EP 1454002A2
Authority
EP
European Patent Office
Prior art keywords
fibers
pattern
liquid
permeable
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02772389A
Other languages
German (de)
French (fr)
Other versions
EP1454002B1 (en
Inventor
Gerold Fleissner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler Nonwovens GmbH
Original Assignee
Fleissner GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Publication of EP1454002A2 publication Critical patent/EP1454002A2/en
Application granted granted Critical
Publication of EP1454002B1 publication Critical patent/EP1454002B1/en
Anticipated expiration legal-status Critical
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Links

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
    • D04H1/492—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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C23/00—Making patterns or designs on fabrics

Definitions

  • the invention relates to a method for colorless, plastic patterning and consolidation of a web of non-woven or knitted fibers, ie a fleece of essentially finite, but also endless fibers such as synthetic staple fibers or natural fibers.
  • EP-A-0 423 619 according to which the fibers of a nonwoven are moved against a sieve drum by means of water jets in order to move the fibers into the holes of the sieve drum.
  • the concentration of the fibers is indefinable, particularly in the thickness of the fleece, and the consolidation of the fleece in the area of the patterned thickenings is almost zero.
  • the fibers of the fleece are moved into the patterned depressions of the sieve drum by means of water jets, but the fibers in the depressions are not consolidated.
  • the task is to find a method with which a pattern can be forced continuously into the fleece or the like with little effort, specifically a pattern which is also clearly defined in height and in which the moving Fibers are also intertwined with one another, i.e. are solidified.
  • the invention provides that the fibers of the material web lying on a first level provided with the pattern to be achieved are partially shifted to a second level by means of high-energy water jets and stopped there due to an existing resistance to a further shifting, the impinging liquid is dissipated and the fibers of the web are swirled together in both planes under the influence of the water jets and thus the nonwoven is solidified and solidified with a pattern. It is essential for a clearly delimited pattern in a nonwoven that is constantly solidified over the entire surface, similar to a watermark in paper, to prevent the nonwoven from tearing when needling in two planes.
  • the consolidation should be the same everywhere, there should be no holes and the thickness of the fleece in the two levels should remain the same.
  • a device for carrying out the method is provided with a base which is present in the direction of the flowing water jets and is only partially permeable to liquid and is open with a pattern. There is also a pressurized water bar assigned to this base for the production of fine water jets distributed over the working width.
  • This device is now supplemented by a further, also supported and liquid-permeable base arranged underneath the pattern-providing base, which serves as a load-bearing resistance for the The base is shifted fibers.
  • the device could preferably consist of a load-bearing, inherently stable, liquid-permeable drum such as a sieve drum, which is wrapped on the outside with a fine-meshed sieve belt such as Spunlace belt and this with a pattern-forming, also liquid-permeable belt or film, which is assigned to the pressurized water bar radially on the outside , It is advantageous to support the spunlace belt on the sieve drum from another coarser sieve fabric.
  • a load-bearing, inherently stable, liquid-permeable drum such as a sieve drum, which is wrapped on the outside with a fine-meshed sieve belt such as Spunlace belt and this with a pattern-forming, also liquid-permeable belt or film, which is assigned to the pressurized water bar radially on the outside , It is advantageous to support the spunlace belt on the sieve drum from another coarser sieve fabric.
  • a device of the type according to the invention is shown as an example in the drawing. Show it:
  • Fig. 1 in cross-section a permeable, under suction draft drum for the production of a patterned fleece with the sieve drum assigned to the outside of the nozzle bar and Fig. 2, the casing of the sieve drum according to Fig. 1 in an enlarged view, Fig. 3, the jacket of the sieve drum according to Fig. 2 with an expanded structure.
  • the screen drum 1 shown in FIG. 1 also includes other peripheral parts, which are omitted here for the sake of clarity.
  • the fleece 2 to be patterned runs directly over the screen drum 1, to which one or more nozzle bars 3 are directly assigned outside.
  • the respective nozzle bar 3 is arranged axially parallel to the sieve drum 1 and is provided on its underside assigned to the sieve drum 1 with a nozzle strip (not shown here) for the exit of the water jets 4.
  • the sieve drum 1 for suctioning the sprayed water is placed under suction, for which purpose a suction pipe 8 is arranged centrally in the interior of the sieve drum 1, which has suction slits 10 extending to the sieve drum 1, which in turn are assigned to the nozzle bars 3.
  • the screen drum 1 consists of a seamless screen drum wall 11, which is provided as a support element for further shaped elements drawn on the outside.
  • the holes in the screen drum wall 11 can be punched into a sheet metal or the wall can have another stable structure.
  • a fine sieve fabric, a spunlace tape 12 is mounted on the wall of the screen drum, on which a metal sheet 5 is further drawn, which is provided with a perforated pattern.
  • the Lö- 7 are therefore drawn with diameters of different sizes.
  • the holes 7 can also have shapes other than round, any large-area pattern is conceivable here.
  • the fleece 2 which is smooth on both sides, is now hit by the water jets 4, the fibers move into the area of the holes 7 and the fleece is needled and solidified on the webs 9 between the holes 7.
  • the movement of the fibers in the holes 7 of the thin sample sheet 5 is limited, however, since a fine screen fabric 12 is arranged below the sample sheet 5, which can be regarded as the actual spunlace tape. It normally serves as a base for a nonwoven that is to be needled smooth.
  • the sprayed water penetrates through the belt 12 and is sucked off inside the sieve drum 1. However, the fibers remain on the belt 12 and are needled by the water jets there, that is, solidified. This creates a plastic pattern on one side in a full-surface solidified fleece.
  • the structure of the sieve drum jacket is the same as that of FIG. 2, but a coarser sieve fabric 13 is inserted between the spunlace belt 12 and the load-bearing sieve drum wall 11, which increases the distance between the load-bearing sieve drum surface and the spunlace belt 12. This equalizes the water flow from the sieve belt 12 to the throughflow openings of the sieve drum 11, the webs between the throughflow openings no longer appear as an obstacle to the throughflow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Filtering Materials (AREA)
  • Decoration Of Textiles (AREA)

Abstract

The invention concerns a method for producing three-dimensional colourless designs in a non-woven fabric or like material entirely bonded. Said method consists in subjecting the fibers to a blowing process through openings which form the design, then in optionally bonding them in the openings, since the fibers in the openings are only displaced therein with limited depth, and are subsequently needle bonded against a supplementary support.

Description

Verfahren zur farblosen, plastischen Musterung und Verfestigung einer Warenbahn und Vorrichtung zur Durchführung des VerfahrensProcess for colorless, plastic patterning and solidification of a web and device for carrying out the process
Die Erfindung bezieht sich auf ein Verfahren zur farblosen, plastischen Musterung und Verfestigung einer Warenbahn aus nicht verwobenen oder verwirkten Fasern also einem Vlies aus im wesentlichen endlichen, aber auch endlosen Fasern wie synthetischen Stapelfasern oder auch natürlichen Fasern.The invention relates to a method for colorless, plastic patterning and consolidation of a web of non-woven or knitted fibers, ie a fleece of essentially finite, but also endless fibers such as synthetic staple fibers or natural fibers.
Durch die US-A-5 115 544 ist bekannt, ein Sieb mit einer Anzahl von ein Profil gebenden Erhöhungen zu versehen, gegen die das zu musternde Vlies mittels Wasserstrahlen gepresst wird. Je nach dem welche Figuren als Erhöhungen auf dem Endlossieb aufgebracht oder in das Sieb gebogen sind, können die unterschiedlichsten Muster jedenfalls auch als Lochmuster erzeugt werden. Die Fasern werden mittels der Wasserstrahlen seitlich neben die Erhöhungen verlagert, so dass die Erhöhungen im wesentlichen von Fasern frei sind. Ähnliches offenbart die EP-A-0 511 025, nach der ebenfalls Erhöhung auf einem Sieb für die farblosen Muster sorgen. Als Medium zur Bewegung der Fasern kann hier auch heiße Luft Anwendung finden.From US-A-5 115 544 it is known to provide a screen with a number of raised portions against which the fleece to be patterned is pressed by means of water jets. Depending on which figures are applied as elevations on the endless sieve or bent into the sieve, the most varied of patterns can in any case also be produced as perforated patterns. The fibers are moved laterally next to the elevations by means of the water jets, so that the elevations are essentially free of fibers. EP-A-0 511 025 discloses something similar, according to which the colorless patterns are also raised on a sieve. Hot air can also be used here as a medium for moving the fibers.
Weiterhin ist durch die DE-A-21 09 143 bekannt, über die Warenbahn eine Schablone mit dem gewünschten Muster entsprechenden Aussparungen zu bewegen, gegen die Heißluft unter Druck geblasen wird. Diese aus dem Farbdruckverfahren bekannte Methode konnte aber ebenso nicht befriedigen. Das Gleiche gilt für die Idee nach der DE-A-20 211 188, bei der die Musterung mittels der Schablone ebenfalls mit heißer Luft dadurch erfolgt, dass die Luft einzelne Fasern der polförmigen Warenbahn zum mustergewüπschten Schrumpfen veranlasst.Furthermore, it is known from DE-A-21 09 143 to move a template with the cut-outs corresponding to the desired pattern, against which hot air is blown under pressure. This method, which is known from the color printing process, was also unsatisfactory. The same applies to the idea according to DE-A-20 211 188, in which the pattern is also patterned with hot air by means of the fact that the air causes individual fibers of the polar web to shrink as desired.
Weiterhin ist noch auf die EP-A-0 423 619 zu verweisen, nach der mittels Wasser- strahlen die Fasern eines Vlieses gegen eine Siebtrommel bewegt werden, um die Fasern in die Löcher der Siebtrommel zu bewegen. Dadurch ergibt sich ein Vlies mit einer dünnen Rückseite und einer vorderen Musterseite mit dort stark mustermäßig konzentrierten Vliesfasern. Die Konzentration der Fasern ist insbesondere in der Dicke des Vlieses undefinierbar und die Verfestigung des Vlieses im Bereich der mustermäßigen Verdickungen fast gleich Null. Die Fasern des Vlieses werden mittels der Wasserstrahlen in die mustermäßigen Vertiefungen der Siebtrommel verschoben, eine Verfestigung der Fasern in den Vertiefungen erfolgt jedoch nicht.Furthermore, reference is also made to EP-A-0 423 619, according to which the fibers of a nonwoven are moved against a sieve drum by means of water jets in order to move the fibers into the holes of the sieve drum. This creates a fleece with a thin back and a front sample side with non-woven fibers concentrated there in a very pattern-like manner. The concentration of the fibers is indefinable, particularly in the thickness of the fleece, and the consolidation of the fleece in the area of the patterned thickenings is almost zero. The fibers of the fleece are moved into the patterned depressions of the sieve drum by means of water jets, but the fibers in the depressions are not consolidated.
Ausgehend von dem Verfahren anfangs genannter Art besteht die Aufgabe, ein Verfahren zu finden, mit dem ohne großen Aufwand kontinuierlich ein Muster in das Vlies od. dgl. gezwungen werden kann, und zwar ein auch in der Höhe klar definiertes Muster, in dem die bewegten Fasern ebenfalls untereinander verschlungen, also verfestigt sind.Starting from the method mentioned at the outset, the task is to find a method with which a pattern can be forced continuously into the fleece or the like with little effort, specifically a pattern which is also clearly defined in height and in which the moving Fibers are also intertwined with one another, i.e. are solidified.
Zur Lösung der Aufgabe sieht die Erfindung vor, dass die auf einer ersten, mit dem zu erzielenden Muster versehenen Ebene liegenden Fasern der Warenbahn teilweise mittels energiereichen Wasserstrahlen in eine zweite Ebene verlagert und dort aufgrund eines vorhanden Widerstandes gegen eine weitere Verlagerung aufgehalten, die auftreffende Flüssigkeit abgeführt wird und die Fasern der Warenbahn in beiden Ebenen unter Einfluss der Wasserstrahlen miteinander verwirbelt werden und damit das Vlies vollflächig und mit einem Muster verfestigt wird. Wesentlich für eine klar abgegrenzte Musterung in einem gleichbleibend über die ganze Fläche verfestigten Vlies, ähnlich einem Wasserzeichen in einem Papier, ist die Verhinderung eines Zer- reißens des Vlieses beim Wasservernadeln in zwei Ebenen. Die Verfestigung soll überall gleich sein, es sollen keinerlei Löcher entstehen und auch die Dicke des Vlieses in den beiden Ebenen soll unverändert gleich bleiben.To achieve the object, the invention provides that the fibers of the material web lying on a first level provided with the pattern to be achieved are partially shifted to a second level by means of high-energy water jets and stopped there due to an existing resistance to a further shifting, the impinging liquid is dissipated and the fibers of the web are swirled together in both planes under the influence of the water jets and thus the nonwoven is solidified and solidified with a pattern. It is essential for a clearly delimited pattern in a nonwoven that is constantly solidified over the entire surface, similar to a watermark in paper, to prevent the nonwoven from tearing when needling in two planes. The consolidation should be the same everywhere, there should be no holes and the thickness of the fleece in the two levels should remain the same.
Eine Vorrichtung zur Durchführung des Verfahrens ist versehen mit einer in Richtung der fließenden Wasserstrahlen vorhandenen Unterlage, die nur teilweise flüssigkeitsdurchlässig und mit einem Muster offen ist. Weiterhin ist da noch ein dieser Unterlage zugeordneter Druckwasserbalken zur Herstellung von über die Arbeitsbreite verteilten feinen Wasserstahlen. Diese Vorrichtung ist jetzt ergänzt durch eine unterhalb der mustergebenden Unterlage angeordnete weitere ebenfalls abgestützte und flüssigkeitsdurchlässige Unterlage, die als tragender Widerstand für die von der musterge- benden Unterlage verlagerten Fasern vorgesehen ist. Die Vorrichtung könnte mit Vorzug aus einer tragenden, in sich stabilen, flüssigkeitsdurchlässigen Trommel wie Siebtrommel bestehen, die außen mit einem feinmaschigen Siebband wie Spunlace- band und dieses mit einem mustergebenden, ebenfalls flüssigkeitsdurchlässigen Band oder Folie umschlungen sein, der der Druckwasserbalken radial außen zugeordnet ist. Es ist vorteilhaft, das Spunlaceband auf der Siebtrommel noch von einem weiteren gröberen Siebgewebe abzustützen.A device for carrying out the method is provided with a base which is present in the direction of the flowing water jets and is only partially permeable to liquid and is open with a pattern. There is also a pressurized water bar assigned to this base for the production of fine water jets distributed over the working width. This device is now supplemented by a further, also supported and liquid-permeable base arranged underneath the pattern-providing base, which serves as a load-bearing resistance for the The base is shifted fibers. The device could preferably consist of a load-bearing, inherently stable, liquid-permeable drum such as a sieve drum, which is wrapped on the outside with a fine-meshed sieve belt such as Spunlace belt and this with a pattern-forming, also liquid-permeable belt or film, which is assigned to the pressurized water bar radially on the outside , It is advantageous to support the spunlace belt on the sieve drum from another coarser sieve fabric.
Eine Vorrichtung der erfindungsgemäßen Art ist in der Zeichnung beispielhaft dargestellt. Es zeigen:A device of the type according to the invention is shown as an example in the drawing. Show it:
Fig. 1 Im Querschnitt eine durchlässige, unter Saugzug stehende Siebtrommel zur Herstellung eines gemusterten Vlieses mit der Siebtrommel außen zugeordnetem Düsenbalken und Fig. 2 der Mantel der Siebtrommel nach Fig. 1 in vergrößerter Darstellung Fig. 3 der Mantel der Siebtrommel nach Fig. 2 mit einem ergänzten Aufbau.Fig. 1 in cross-section a permeable, under suction draft drum for the production of a patterned fleece with the sieve drum assigned to the outside of the nozzle bar and Fig. 2, the casing of the sieve drum according to Fig. 1 in an enlarged view, Fig. 3, the jacket of the sieve drum according to Fig. 2 with an expanded structure.
Zu der aus der Fig. 1 ersichtlichen Siebtrommel 1 gehören noch weitere Peripherieteile, die aber wegen der Übersichtlichkeit hier fortgelassen sind. Das zu musternde Vlies 2 überläuft unmittelbar die Siebtrommel 1, der außerhalb ein oder mehrere Düsenbalken 3 unmittelbar zugeordnet sind. Der jeweilige Düsenbalken 3 ist achsparallel zur Siebtrommel 1 angeordnet und an seiner der Siebtrommel 1 zugeordneten Unterseite mit einem hier nicht dargestellten Düsenstreifen zum Austritt der Wasserstrahlen 4 versehen. Wie üblich ist die Siebtrommel 1 zum Absaugen des aufgespritzten Wassers unter Saugzug gesetzt, wozu im Inneren der Siebtrommel 1 ein Saugrohr 8 zentrisch angeordnet ist, das zur Siebtrommel 1 sich erstreckende Saugschlitze 10 aufweist, denen wiederum die Düsenbalken 3 zugeordnet sind.The screen drum 1 shown in FIG. 1 also includes other peripheral parts, which are omitted here for the sake of clarity. The fleece 2 to be patterned runs directly over the screen drum 1, to which one or more nozzle bars 3 are directly assigned outside. The respective nozzle bar 3 is arranged axially parallel to the sieve drum 1 and is provided on its underside assigned to the sieve drum 1 with a nozzle strip (not shown here) for the exit of the water jets 4. As usual, the sieve drum 1 for suctioning the sprayed water is placed under suction, for which purpose a suction pipe 8 is arranged centrally in the interior of the sieve drum 1, which has suction slits 10 extending to the sieve drum 1, which in turn are assigned to the nozzle bars 3.
Die Siebtrommel 1 besteht gemäß Fig. 1 aus einer nahtlosen Siebtrommelwandung 11 , die als Stützelement für weitere außen aufgezogene Formelemente vorgesehen ist. Die Löcher der Siebtrommelwandung 11 können in ein Blech gestanzt sein oder die Wandung kann eine andere stabile Struktur haben. Auf die Siebtrommelwandung ist gemäß Fig. 2 ein feines Siebgewebe, ein Spunlaceband 12 aufgezogen, auf dem weiterhin ein Blech 5 aufgezogen ist, das mit einem Lochmuster versehen ist. Die Lö- eher 7 sind deshalb mit unterschiedlich großen Durchmessern gezeichnet. Selbstverständlich können die Löcher 7 auch andere als runde Formen haben, jedes auch großflächige Muster ist hier denkbar.1, the screen drum 1 consists of a seamless screen drum wall 11, which is provided as a support element for further shaped elements drawn on the outside. The holes in the screen drum wall 11 can be punched into a sheet metal or the wall can have another stable structure. According to FIG. 2, a fine sieve fabric, a spunlace tape 12, is mounted on the wall of the screen drum, on which a metal sheet 5 is further drawn, which is provided with a perforated pattern. The Lö- 7 are therefore drawn with diameters of different sizes. Of course, the holes 7 can also have shapes other than round, any large-area pattern is conceivable here.
Wenn nunmehr das beidseitig glatte Vlies 2 von den Wasserstrahlen 4 getroffen wird, so bewegen sich die Fasern im Bereich der Löcher 7 in diese hinein und auf den Stegen 9 zwischen den Löchern 7 wird das Vlies vernadelt, verfestigt werden. Die Bewegung der Fasern in die Löcher 7 des dünnen Musterbleches 5 ist aber begrenzt, da unterhalb des Musterbleches 5 ein feines Siebgewebe 12 angeordnet ist, das als eigentliches Spunlaceband angesehen werden kann. Es dient normalerweise als Unterlage für ein glatt zu vernadelndes Vlies. Das aufgespritzte Wasser dringt durch das Band 12 und wird innerhalb der Siebtrommel 1 abgesaugt. Die Fasern aber bleiben auf dem Band 12 liegen und werden von den Wasserstrahlen auch dort vernadelt, sprich verfestigt. So entsteht einseitig ein plastisches Muster in einem vollflächig verfestigten Vlies.If the fleece 2, which is smooth on both sides, is now hit by the water jets 4, the fibers move into the area of the holes 7 and the fleece is needled and solidified on the webs 9 between the holes 7. The movement of the fibers in the holes 7 of the thin sample sheet 5 is limited, however, since a fine screen fabric 12 is arranged below the sample sheet 5, which can be regarded as the actual spunlace tape. It normally serves as a base for a nonwoven that is to be needled smooth. The sprayed water penetrates through the belt 12 and is sucked off inside the sieve drum 1. However, the fibers remain on the belt 12 and are needled by the water jets there, that is, solidified. This creates a plastic pattern on one side in a full-surface solidified fleece.
In Fig. 3 ist der Aufbau des Siebtrommelmantels gleich dem nach Fig. 2, jedoch ist zwischen dem Spunlaceband 12 und der tragenden Siebtrommelwandung 11 noch ein gröberes Siebgewebe 13 eingeschoben, das den Abstand der tragenden Siebtrommeloberfläche zum Spunlaceband 12 vergrößert. Dies vergleichmäßigt die Wasserströmung vom Siebband 12 zu den Durchflussöffnungen der Siebtrommel 11 , die Stege zwischen den Durchflussöffnungen treten nicht mehr als Hindernis für die Durchströmung in Erscheinung. 3, the structure of the sieve drum jacket is the same as that of FIG. 2, but a coarser sieve fabric 13 is inserted between the spunlace belt 12 and the load-bearing sieve drum wall 11, which increases the distance between the load-bearing sieve drum surface and the spunlace belt 12. This equalizes the water flow from the sieve belt 12 to the throughflow openings of the sieve drum 11, the webs between the throughflow openings no longer appear as an obstacle to the throughflow.

Claims

P a t e n t a n s p r ü c h e : Patent claims:
1. Verfahren zur farblosen, plastischen Musterung und Verfestigung einer Warenbahn aus nicht verwobenen oder verwirkten Fasern also einem Vlies aus im wesentlichen endlichen Fasern wie synthetischen Stapelfasern oder auch natürlichen Fasern, dadurch gekennzeichnet, dass die auf einer ersten, mit dem zu erzielenden Muster versehenen Ebene liegenden Fasern der Warenbahn teilweise mittels energiereichen Wasserstrahlen in eine zweite Ebene verlagert und dort aufgrund eines vorhanden Widerstandes gegen eine weitere Verlagerung aufgehalten, die auftreffende Flüssigkeit abgeführt wird und die Fasern der Warenbahn in beiden Ebenen unter Einfluss der Wasserstrahlen miteinander verwirbelt werden und damit das Vlies vollflächig und mit einem Muster verfestigt wird.1. A method for colorless, plastic patterning and solidification of a web of non-woven or knitted fibers, ie a nonwoven made of essentially finite fibers such as synthetic staple fibers or natural fibers, characterized in that on a first level provided with the pattern to be achieved lying fibers of the web are partially shifted to a second level by means of high-energy water jets and stopped there due to resistance to further shifting, the liquid that is struck is drained off and the fibers of the web are swirled together in both planes under the influence of the water jets and thus the entire surface of the fleece and solidified with a pattern.
2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 , mit einer in Richtung der fließenden Wasserstrahlen vorhandenen Unterlage (5), die nur teilweise flüssigkeitsdurchlässig und mit einem Muster (7) offen ist, und einem dieser zugeordneten Druckwasserbalken zur Herstellung von über die Arbeitsbreite verteilten feinen Wasserstahlen (4), dadurch gekennzeichnet, dass unterhalb der mustergebenden Unterlage (5) eine weitere ebenfalls abgestützte und flüssigkeitsdurchlässige Unterlage (12) angeordnet ist, die als tragender Widerstand für die von der mustergebenden Unterlage (5) verlagerten Fasern vorgesehen ist.2. Device for carrying out the method according to claim 1, with an existing in the direction of the flowing water jet underlay (5), which is only partially permeable to liquid and with a pattern (7) open, and an associated pressure water bar for the production of distributed over the working width fine water steels (4), characterized in that a further likewise supported and liquid-permeable base (12) is arranged below the pattern base (5), which is provided as a load-bearing resistance for the fibers shifted from the pattern base (5).
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass sie besteht aus einer tragenden, in sich stabilen, flüssigkeitsdurchlässigen Trommel wie Siebtrommel (11) besteht, die außen mit einem feinmaschigen Siebband (12) wie Spunlaceband und dieses mit einem mustergebenden, ebenfalls flüssigkeitsdurchlässigen Band (5) oder Folie umschlungen ist, der der Druckwasserbalken (3) radial außen zugeordnet ist. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das feinmaschige Spunbondband (12) über ein zwischengelagertes, weiteres, grobmaschiges Siebgewebe (13) auf der Siebtrommel (11) abgestützt ist. 3. Device according to claim 2, characterized in that it consists of a load-bearing, inherently stable, liquid-permeable drum such as a sieve drum (11), the outside with a fine-mesh sieve belt (12) such as spunlace belt and this with a pattern-giving, also liquid-permeable belt (5) or foil is wrapped, which is assigned to the pressure water bar (3) radially on the outside. Device according to claim 3, characterized in that the fine-meshed spunbond tape (12) is supported on the screening drum (11) by means of a further, coarse-mesh screen fabric (13) which is stored in between.
EP02772389A 2001-10-25 2002-10-21 Method for embossed and colourless decoration and bonding of a fabric web and device therefor Expired - Lifetime EP1454002B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10152075 2001-10-25
DE10152075A DE10152075A1 (en) 2001-10-25 2001-10-25 Process for colorless, plastic patterning and solidification of a web and device for carrying out the process
PCT/EP2002/011747 WO2003035955A2 (en) 2001-10-25 2002-10-21 Method for embossed and colourless decoration and bonding of a fabric web and device therefor

Publications (2)

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EP1454002A2 true EP1454002A2 (en) 2004-09-08
EP1454002B1 EP1454002B1 (en) 2007-07-11

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EP02772389A Expired - Lifetime EP1454002B1 (en) 2001-10-25 2002-10-21 Method for embossed and colourless decoration and bonding of a fabric web and device therefor

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US (1) US7308743B2 (en)
EP (1) EP1454002B1 (en)
JP (1) JP4388811B2 (en)
KR (1) KR100712365B1 (en)
CN (1) CN1283870C (en)
AT (1) ATE366838T1 (en)
CA (1) CA2464621A1 (en)
DE (2) DE10152075A1 (en)
EA (1) EA006139B1 (en)
IL (1) IL161508A0 (en)
PT (1) PT1454002E (en)
WO (1) WO2003035955A2 (en)

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EP1454002B1 (en) 2007-07-11
US7308743B2 (en) 2007-12-18
DE50210471D1 (en) 2007-08-23
CN1283870C (en) 2006-11-08
ATE366838T1 (en) 2007-08-15
US20050155200A1 (en) 2005-07-21
PT1454002E (en) 2007-12-20
WO2003035955A2 (en) 2003-05-01
WO2003035955A3 (en) 2003-12-24
EA200400581A1 (en) 2004-08-26
IL161508A0 (en) 2004-09-27
JP4388811B2 (en) 2009-12-24
CN1575361A (en) 2005-02-02
KR100712365B1 (en) 2007-05-02
CA2464621A1 (en) 2003-05-01
JP2005506470A (en) 2005-03-03
KR20040058231A (en) 2004-07-03
DE10152075A1 (en) 2003-05-08
EA006139B1 (en) 2005-10-27

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