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EP1404914B1 - Device for the transparent patterning of a material web - Google Patents

Device for the transparent patterning of a material web Download PDF

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Publication number
EP1404914B1
EP1404914B1 EP02751071A EP02751071A EP1404914B1 EP 1404914 B1 EP1404914 B1 EP 1404914B1 EP 02751071 A EP02751071 A EP 02751071A EP 02751071 A EP02751071 A EP 02751071A EP 1404914 B1 EP1404914 B1 EP 1404914B1
Authority
EP
European Patent Office
Prior art keywords
drum
pattern
material web
openings
fluid
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.)
Expired - Lifetime
Application number
EP02751071A
Other languages
German (de)
French (fr)
Other versions
EP1404914A2 (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
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Filing date
Publication date
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Publication of EP1404914A2 publication Critical patent/EP1404914A2/en
Application granted granted Critical
Publication of EP1404914B1 publication Critical patent/EP1404914B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • D04H1/732—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 by fluid current, e.g. air-lay
    • 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
    • D04H1/736—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 characterised by the apparatus for arranging fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H18/00—Needling machines
    • D04H18/04—Needling machines with water jets

Definitions

  • the invention relates to a device with a circulating within a housing drum for colorless patterning of a web of intertwined and thus consolidated fibers natural or synthetic type preferably a nonwoven such as cotton fleece, which is also dried in the case of a wet treatment such as hydrodynamic needling or a refining process wherein the web is pressed against the apertured drum by means of a positive and negative pressure acting on a fluid, and the cross-sectional areas of the apertures produce the pattern on the web, the peripheral surface of the drum being provided with apertures presenting an image, patterning in a variety of ways act on the lying web.
  • EP-A-0 105 730 a device is performed with the hot air against a lying on a drum, patterning, consisting of rods or wires endless belt on which rests the web.
  • patterning consisting of rods or wires endless belt on which rests the web.
  • the edge regions and indeed the passages forming smooth, the waterway bearing surfaces are not permeable.
  • the object is to find a device with the od without any difficulty, any pattern in the nonwoven od. Like. Can be forced, without having to pay attention to a structural pattern of a transporting endless belt.
  • the invention provides that the drum and the outer peripheral surface of the drum over the entire web carrying the surface microperforated and thus fluid-permeable formed and the patterning passages are larger than the micro-perforation of the web carrying surface dimensioned that fluid It is not the structure of a transport element produce the image pattern, but the cross-sectional area of existing on the transport element passages in the area of the passages and in the area of the web carrying smooth surface of the transport element. For this purpose, however, the smooth surface forming the passages and carrying the web is also permeable to the fluid in the edge region.
  • the outer drum or the film as a whole permeable to air or microperforated, thus the extracted fluid can be removed over the entire surface and not only on the pattern surfaces. It is also advantageous that the flat surface carrying the web has passages, so that a three-dimensional pattern can be readily formed.
  • the web must in case of wet treatment, eg. B. if it was solidified by hydrodynamic needling, anyway dried.
  • the heat treatment apparatus such as a screen drum dryer is provided with a peripheral surface provided with image-forming passages, then the desired pattern can be self-evolved without additional expense.
  • the fibers are partially sucked by the negative pressure through the passages of the pattern, so that there is a three-dimensional colorless pattern of the own fibers on the nonwoven.
  • the method according to the invention can also be carried out without a drying process, both with cold and warm or hot air, steam or a fluid.
  • a normal screen drum device consists of an approximately rectangular housing 1 which is divided by an intermediate wall 2 in a treatment room 3 and a fan room 4.
  • a fan 6 is rotatably mounted in the treatment room 3, the screen drum and concentrically to this in the fan room 4, a fan 6 is rotatably mounted.
  • the fan room can also be arranged in a separated from the screen drum housing 1, not shown here, separate fan housing. In any case, the fan sets the interior of the drum under induced draft.
  • heating units 7 are arranged above and below the ventilator 6 and consist of tubes through which heating medium flows.
  • the drum is covered inside the non-fleece covered area inside by an inner cover 8 against the induced draft.
  • the effective shell of the drum is formed by a perforated plate 5. This can be wrapped at a distance outside of a film or steel strip 9, which is held taut on the end face of the drum at the two bottoms 11, 12.
  • the patterning openings can be placed directly in the drum or - if a film is used - in the film. In this case, it is no longer a conventional screen drum, but a smooth drum with a pattern giving circumferential surface.
  • the drum, film or the like should be permeable to air as a whole, such as microperforated, so that the extracted fluid can be removed over the entire surface and not just on the sample surfaces.
  • a screen drum of this type above generally serves for drying.
  • the smooth peripheral surface carrying the fabric web has passages which create a three-dimensional pattern 13 on the nonwoven fabric.
  • These can be slots 14, Crosses, holes are oval or round or other openings, which together with others give a desired image pattern 13.
  • Images of the imaginary type are shown in FIG. 2.
  • the transport element 9 over its entire surface permeable z. B. is microperforated.
  • the device for patterning may be applied to a continuous line following a wet simultaneous drying or even just for patterning.
  • the medium such as air, fluid or steam must be selected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Discharge By Other Means (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Nozzles (AREA)

Abstract

The invention relates to a method for generating three-dimensional transparent patterns on a non-woven fabric or similar, whereby, for example, hot air is sucked through openings which form the pattern in the circumferential surface of a drum. The openings are straight or curved gaps instead of conventional holes and together with other openings form the desired pattern. The air or similar, flowing through the gaps, presses the fibres into the gaps and the vacuum on the inner side of the drum sucks said fibres onto the patterning.

Description

Die Erfindung bezieht sich auf eine Vorrichtung mit einer innerhalb eines Gehäuses umlaufenden Trommel zur farblosen Musterung einer Warenbahn aus untereinander verflochtenen und insofern verfestigten Fasern natürlicher oder synthetischer Art vorzugsweise eines Vlieses wie Wattevlies, das im Falle einer Nassbehandlung wie hydrodynamischer Vernadelung oder eines Veredelungsvorgangs auch getrocknet wird, wobei die Warenbahn mittels eines auf ein Fluid einwirkenden Über- und Unterdrucks gegen die mit Durchlässen versehene Trommel gepresst ist und die Querschnittsflächen der Durchlässe das Bildmuster auf der Warenbahn erzeugen, wobei die Umfangsfläche der Trommel mit ein Bild darstellenden Durchlässen versehen ist, die vielfältig mustergebend auf die aufliegende Warenbahn wirken.The invention relates to a device with a circulating within a housing drum for colorless patterning of a web of intertwined and thus consolidated fibers natural or synthetic type preferably a nonwoven such as cotton fleece, which is also dried in the case of a wet treatment such as hydrodynamic needling or a refining process wherein the web is pressed against the apertured drum by means of a positive and negative pressure acting on a fluid, and the cross-sectional areas of the apertures produce the pattern on the web, the peripheral surface of the drum being provided with apertures presenting an image, patterning in a variety of ways act on the lying web.

Es ist durch die EP-A-0 105 730 eine Vorrichtung bekannt, mit der heiße Luft gegen ein auf einer Trommel liegendes, mustergebendes, aus Stäben oder Drähten bestehendes Endlosband geführt wird, auf dem die Warenbahn aufliegt. Bei der bekannten Vorrichtung sind die Randbereiche und zwar die Durchlässe bildenden glatten, die Wasserbahn tragenden Flächen nicht durchlässig.It is known from EP-A-0 105 730 a device is performed with the hot air against a lying on a drum, patterning, consisting of rods or wires endless belt on which rests the web. In the known device, the edge regions and indeed the passages forming smooth, the waterway bearing surfaces are not permeable.

Mit der Vorrichtung nach der DE-A-199 29 105 wird Wasser gegen ein Vlies gepresst, das auf einem mustergebenden Struktursieb aufliegt. In beiden Fällen wird das Muster auf der Warenbahn durch das Strukturmuster des Endlosbandes erzeugt.With the device according to DE-A-199 29 105 water is pressed against a non-woven, which rests on a pattern-giving structural sieve. In both cases, the pattern on the web is generated by the pattern of the endless belt.

Durch die US 5 115 544 oder auch die DE-A-199 12 279 oder DE-A-199 12 905 ist bekannt, ein Sieb mit einer ein Profil gebenden Erhöhung zu versehen, gegen die das zu mustemde Vlies mittels Wasserstrahlen gepresst wird. Je nachdem welche Figuren als Erhöhungen auf dem Endlossieb aufgebracht sind, können die unterschiedlichsten Muster eventuell auch als Lochmuster erzeugt werden. Ähnliches offenbart die EP-A-O 511 025, nach der ebenfalls Erhöhungen auf einem Sieb für die farblosen Muster sorgen. Als Medium zur Bewegung der Fasern kann hier auch heiße Luft Anwendung finden.It is known from US Pat. No. 5,115,544 or also DE-A-199 12 279 or DE-A-199 12 905 to provide a screen with a profile giving rise, against which the fleece to be stitched is pressed by means of water jets. Depending on which figures are applied as elevations on the Endlossieb, The most different patterns may also be created as a hole pattern. Similar disclosures EP-AO 511 025, after which also provide increases on a screen for the colorless pattern. As a medium for moving the fibers, hot air can also be used here.

Ein aufwendigeres Verfahren zur farblosen Musterung mittels Luft offenbart die US 4 499 637. Dort werden energiereiche Luftstrahlen aus computergesteuerten Düsen gegen die Warenbahn geblasen. 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 21 188, bei der die Musterung mittels der Schablone ebenfalls mit heißer Luft dadurch erfolgt, dass die Luft einzelne Fasern der polförmigen Warenbahn zum mustergewünschten Schrumpfen veranlasst.A more complex process for colorless patterning by means of air is disclosed in US Pat. No. 4,499,637. High-energy air jets are blown from computer-controlled nozzles against the web. Furthermore, it is known from DE-A-21 09 143 to move over the web a template with the desired pattern corresponding recesses is blown against the hot air under pressure. However, this method known from the color printing process could not satisfy either. The same applies to the idea according to DE-A-20 21 188, in which the patterning by means of the stencil also takes place with hot air in that the air causes individual fibers of the poliform material web to shrink as desired in the pattern.

Ausgehend von der anfangs genannten Art besteht die Aufgabe, eine Vorrichtung zu finden, mit der ohne großen Aufwand kontinuierlich ein beliebiges Muster in das Vlies od. dgl. gezwungen werden kann, und zwar ohne ein Strukturmuster eines transportierenden Endlosbandes beachten zu müssen.Starting from the initially mentioned type, the object is to find a device with the od without any difficulty, any pattern in the nonwoven od. Like. Can be forced, without having to pay attention to a structural pattern of a transporting endless belt.

Zur Lösung der Aufgabe sieht die Erfindung vor, dass die Trommel und die äußere Umfangsfläche der Trommel über die ganze die Warenbahn tragende Fläche mikroperforiert und damit derart fluiddurchlässig ausgebildet ist und die mustergebenden Durchlässe größer als die Mikroperforierung der die Warenbahn tragenden Fläche dimensioniert sind, dass Fluid im Bereich der Durchlässe und auch im Bereich der die Warenbahn tragenden glatten Fläche des Transportelementes vollflächig abgeführt wird.Es soll also nicht die Struktur eines Transportelementes das Bildmuster erzeugen, sondern die Querschnittsfläche von auf dem Transportelement vorhandenen Durchlässen. Dazu ist aber auch die glatte die Durchlässe bildende und die Warenbahn tragende Fläche für das Fluid auch im Randbereich durchlässig. Für eine saubere, klar figurierte Mustergebung ist die auch die äußere Trommel oder die Folie insgesamt luftdurchlässig bzw. mikroperforiert, somit kann das abgesaugte Fluid vollflächig und nicht nur an den Musterflächen abgeführt werden. Vorteilhaft ist es auch, dass die die Warenbahn tragende glatte Fläche Durchlässe aufweist, so dass ohne weiteres ein dreidimensionales Muster gebildet werden kann.To achieve the object, the invention provides that the drum and the outer peripheral surface of the drum over the entire web carrying the surface microperforated and thus fluid-permeable formed and the patterning passages are larger than the micro-perforation of the web carrying surface dimensioned that fluid It is not the structure of a transport element produce the image pattern, but the cross-sectional area of existing on the transport element passages in the area of the passages and in the area of the web carrying smooth surface of the transport element. For this purpose, however, the smooth surface forming the passages and carrying the web is also permeable to the fluid in the edge region. For a clean, clearly figured patterning is also the outer drum or the film as a whole permeable to air or microperforated, thus the extracted fluid can be removed over the entire surface and not only on the pattern surfaces. It is also advantageous that the flat surface carrying the web has passages, so that a three-dimensional pattern can be readily formed.

Die Warenbahn muss im Falle einer Nassbehandlung, z. B. wenn sie mittels der hydrodynamischen Vernadelung verfestigt wurde, sowieso getrocknet werden. Wenn nunmehr die Wärmebehandlungsvorrichtung wie Siebtrommeltrockener mit einer Umfangsfläche versehen ist, die mit ein Bild erzeugenden Durchlässen versehen ist, dann kann das gewünschte Muster von selbst ohne zusätzlichen Aufwand entstehen.The web must in case of wet treatment, eg. B. if it was solidified by hydrodynamic needling, anyway dried. Now, if the heat treatment apparatus such as a screen drum dryer is provided with a peripheral surface provided with image-forming passages, then the desired pattern can be self-evolved without additional expense.

Die Fasern werden teilweise durch den Unterdruck durch die Durchlässe des Musters gesaugt, so dass sich ein dreidimensionales farbloses Muster aus den eigenen Fasern auf dem Vlies ergibt. Das erfindungsgemäße Verfahren kann aber auch ohne Trockenvorgang durchgeführt werden, sowohl mit kalter als auch warmer oder heißer Luft, Dampf oder einem Fluid.The fibers are partially sucked by the negative pressure through the passages of the pattern, so that there is a three-dimensional colorless pattern of the own fibers on the nonwoven. However, the method according to the invention can also be carried out without a drying process, both with cold and warm or hot air, steam or a fluid.

Eine Vorrichtung gemäß der Erfindung ist in der Zeichnung beispielhaft dargestellt. Es zeigen:

Fig. 1
einen Schnitt längs durch eine übliche Siebtrommelvorrichtung und
Fig. 2
die Draufsicht der Umfangsfläche einer Trommel mit unterschiedlichen Mustern als aus Schlitzen bestehenden Bildern.
An apparatus according to the invention is exemplified in the drawing. Show it:
Fig. 1
a section along a conventional screen drum apparatus and
Fig. 2
the plan view of the peripheral surface of a drum with different patterns than slotted images.

Eine normale Siebtrommelvorrichtung besteht aus einem etwa rechteckigen Gehäuse 1. das durch eine Zwischenwand 2 in einen Behandlungsraum 3 und einen Ventilatorraum 4 unterteilt ist. Im Behandlungsraum 3 ist die Siebtrommel und konzentrisch zu dieser im Ventilatorraum 4 ein Ventilator 6 drehbar gelagert. Selbstverständlich kann der Ventilatorraum auch in einem von dem Siebtrommelgehäuse 1 abgetrennten, hier nicht dargestellten, gesonderten Ventilatorgehäuse angeordnet sein. Jedenfalls setzt der Ventilator das Innere der Trommel unter Saugzug.A normal screen drum device consists of an approximately rectangular housing 1 which is divided by an intermediate wall 2 in a treatment room 3 and a fan room 4. In the treatment room 3, the screen drum and concentrically to this in the fan room 4, a fan 6 is rotatably mounted. Of course, the fan room can also be arranged in a separated from the screen drum housing 1, not shown here, separate fan housing. In any case, the fan sets the interior of the drum under induced draft.

Gemäß der Fig. 1 sind ober- und unterhalb des Ventilators 6 jeweils Heizaggregate 7 angeordnet, die aus mit Heizmedium durchflossenen Rohren bestehen. Die Trommel ist in dem nicht vom Vlies bedeckten Bereich innen von einer Innenabdeckung 8 gegen den Saugzug abgedeckt. Der wirksame Mantel der Trommel ist durch ein gelochtes Blech 5 gebildet. Dieses kann mit Abstand außen von einer Folie oder Stahlband 9 umschlungen sein, die an der Stirnseite der Trommel an den beiden Böden 11, 12 gespannt gehalten ist. Die mustergebenden Öffnungen können direkt in der Trommel oder auch - bei Verwendung einer Folie - in der Folie eingebracht sein. In diesem Fall handelt es sich nicht mehr um eine übliche Siebtrommel, sondern um eine glatte Trommel mit einer mustergebenden Umfangsfläche. Für die saubere, klar figurierte Mustergebung, soll die Trommel, Folie od. dgl. insgesamt luftdurchlässig, wie mikroperforiert sein, damit das abgesaugte Fluid vollflächig abgeführt werden kann und nicht nur an den Musterfiächen.According to FIG. 1, heating units 7 are arranged above and below the ventilator 6 and consist of tubes through which heating medium flows. The drum is covered inside the non-fleece covered area inside by an inner cover 8 against the induced draft. The effective shell of the drum is formed by a perforated plate 5. This can be wrapped at a distance outside of a film or steel strip 9, which is held taut on the end face of the drum at the two bottoms 11, 12. The patterning openings can be placed directly in the drum or - if a film is used - in the film. In this case, it is no longer a conventional screen drum, but a smooth drum with a pattern giving circumferential surface. For the clean, clearly figured patterning, the drum, film or the like should be permeable to air as a whole, such as microperforated, so that the extracted fluid can be removed over the entire surface and not just on the sample surfaces.

Eine Siebtrommel dieser oben genannten Art dient im allgemeinen zum Trocknen. Gleichzeitig oder aber auch allein kann sie zum farblosen Mustern dienlich sein, indem die die Warenbahn tragende glatte Umfangsfläche Durchlässe aufweist, die auf dem Vlies ein dreidimensionales Muster 13 entstehen lassen. Dies können Schlitze 14, Kreuze, Löcher oval oder rund oder sonstige Öffnungen sein, die zusammen mit anderen ein gewünschtes Bildmuster 13 ergeben. Bilder der gedachten Art sind in der Fig. 2 dargestellt. Dort ist auch im Bildmuster "OTTO" dargestellt, dass die Folie od. dgl. nicht nur für das Muster "OTTO" durchlässig ausgebildet, sondern das Transportelement 9 vollflächig durchlässig z. B. mikroperforiert ist.A screen drum of this type above generally serves for drying. At the same time or even alone, it can be useful for colorless patterning, in that the smooth peripheral surface carrying the fabric web has passages which create a three-dimensional pattern 13 on the nonwoven fabric. These can be slots 14, Crosses, holes are oval or round or other openings, which together with others give a desired image pattern 13. Images of the imaginary type are shown in FIG. 2. There is also shown in the pattern "OTTO" that the film od. Like. Not only for the pattern "OTTO" permeable, but the transport element 9 over its entire surface permeable z. B. is microperforated.

Die Vorrichtung zum Mustern kann in eine Kontinueanlage im Anschluss an eine Nassbehandlung zur gleichzeitigen Trocknung oder auch allein nur zum Mustern Anwendung finden. Je nach dem muss das Medium wie Luft, Fluid oder Dampf gewählt werden.The device for patterning may be applied to a continuous line following a wet simultaneous drying or even just for patterning. Depending on this, the medium such as air, fluid or steam must be selected.

Claims (12)

  1. A device comprising a drum (5) rotating inside a housing (1) for transparent patterning of a material web comprising fibres of natural or synthetic type, which are interlaced amongst one another and insofar bonded, preferably of a nonwoven such as fibre wadding which is also dried in the case of a wet treatment such as hydrodynamic needle punching or a finishing process, wherein the material web is pressed by means of an overpressure and underpressure acting on a fluid against the drum (5) provided with openings (14) and the cross-sectional areas of the openings (14) produce the pattern (13) on the material web, wherein the circumferential surface of the drum (5) is provided with openings (14) representing a pattern, which act on the applied material web in a multiple patterning fashion, characterised in that the drum (5) and the outer circumferential surface of the drum (5) are micro-perforated over the entire surface bearing the material web and is thus constructed as fluid-permeable and the patterning openings (14) are dimensioned as larger than the micro-perforation of the surface bearing the material web such that fluid in the area of the openings and also in the area of the smooth surface of the transport element bearing the material web is removed over the entire area.
  2. The device according to claim 1, characterised in that the patterning circumferential surface, a film (9) or a steel strip, is pulled onto the drum (5) with a spacing.
  3. The device according to claim 1 or 2, characterised in that the cross-sectional area of the openings consists of straight or curved gaps or holes (14), arbitrarily aligned over the surface of the drum (5), which form a pattern.
  4. The device according to claim 1, characterised in that the gaps, holes (14) and the like are joined together to form names, pictures or arbitrary patterns.
  5. The device according to claim 1, characterised in that the gaps, holes (14) and the like are punched, laser-cut or incorporated in another fashion into the circumferential surface of the drum (5, 9).
  6. The device according to claim 1, characterised in that water is used as fluid.
  7. The device according to claim 1, characterised in that the overpressure but substantially the underpressure to produce the pattern is produced by means of a fluid comprising air or gas.
  8. The device according to claim 1, characterised in that the fluid, the air or the gas is heated.
  9. The device according to claim 8, characterised in that steam is used as gas.
  10. The device according to claim 1 to 6, characterised in that the pattern is produced during drying of the material web.
  11. The device according to claim 10, characterised in that the pattern is produced after the drying process of the material web.
  12. The device according to claim 10, characterised in that the pattern is produced on a dry nonwoven by means of steam.
EP02751071A 2001-07-10 2002-06-25 Device for the transparent patterning of a material web Expired - Lifetime EP1404914B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10132563 2001-07-10
DE10132563A DE10132563A1 (en) 2001-07-10 2001-07-10 Process for colorless patterning of a material web and device for carrying out the process
PCT/EP2002/006987 WO2003008691A2 (en) 2001-07-10 2002-06-25 Method for the transparent patterning of a material web and device for carrying out said method

Publications (2)

Publication Number Publication Date
EP1404914A2 EP1404914A2 (en) 2004-04-07
EP1404914B1 true EP1404914B1 (en) 2006-05-03

Family

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Application Number Title Priority Date Filing Date
EP02751071A Expired - Lifetime EP1404914B1 (en) 2001-07-10 2002-06-25 Device for the transparent patterning of a material web

Country Status (11)

Country Link
US (1) US7310858B2 (en)
EP (1) EP1404914B1 (en)
JP (1) JP4373209B2 (en)
KR (1) KR20040030041A (en)
CN (1) CN1267596C (en)
AT (1) ATE325211T1 (en)
BR (1) BR0211065B1 (en)
CA (1) CA2453356A1 (en)
DE (2) DE10132563A1 (en)
RU (1) RU2329339C2 (en)
WO (1) WO2003008691A2 (en)

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Also Published As

Publication number Publication date
CA2453356A1 (en) 2003-01-30
WO2003008691A3 (en) 2003-09-18
DE50206670D1 (en) 2006-06-08
US7310858B2 (en) 2007-12-25
BR0211065A (en) 2004-06-15
KR20040030041A (en) 2004-04-08
EP1404914A2 (en) 2004-04-07
JP4373209B2 (en) 2009-11-25
WO2003008691A2 (en) 2003-01-30
CN1526042A (en) 2004-09-01
US20050015950A1 (en) 2005-01-27
JP2004535521A (en) 2004-11-25
DE10132563A1 (en) 2003-01-30
BR0211065B1 (en) 2012-09-18
CN1267596C (en) 2006-08-02
ATE325211T1 (en) 2006-06-15
RU2329339C2 (en) 2008-07-20
WO2003008691B1 (en) 2003-11-20

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