EP2352872A1 - Method and apparatus for producing a nonwoven fabric product - Google Patents

Method and apparatus for producing a nonwoven fabric product

Info

Publication number
EP2352872A1
EP2352872A1 EP09801384A EP09801384A EP2352872A1 EP 2352872 A1 EP2352872 A1 EP 2352872A1 EP 09801384 A EP09801384 A EP 09801384A EP 09801384 A EP09801384 A EP 09801384A EP 2352872 A1 EP2352872 A1 EP 2352872A1
Authority
EP
European Patent Office
Prior art keywords
outlet openings
material web
nozzle
structuring
solidification
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
EP09801384A
Other languages
German (de)
French (fr)
Other versions
EP2352872B1 (en
Inventor
Willi Liebscher
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
Truetzschler Nonwovens 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
Application filed by Truetzschler Nonwovens GmbH filed Critical Truetzschler Nonwovens GmbH
Priority to PL09801384T priority Critical patent/PL2352872T3/en
Publication of EP2352872A1 publication Critical patent/EP2352872A1/en
Application granted granted Critical
Publication of EP2352872B1 publication Critical patent/EP2352872B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D04H1/02—Cotton wool; Wadding
    • 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
    • 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
    • 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

  • the invention relates to a method for producing a nonwoven product and to an apparatus for carrying out the method according to the preamble of the respective claim.
  • EP 1 310 226 B1 a nonwoven product in the form of a cosmetic cotton pad is known, which is reinforced by water jet needling and which has on its surface, in addition to the fine grooves formed by water jet needling, groove-shaped structuring in the form of large grooves, in particular in the form of wavy lines , The production is carried out by multi-stage consecutively executed water jet processes.
  • a similarly structured product is described in EP 1 106 723 B1.
  • a water jet needling using a perpendicular to the conveying direction of a material web reciprocating nozzle beam is known from DE 198 28 118 A1.
  • the nozzle beam is assigned an oscillator with which the nozzle beam is moved periodically in its longitudinal direction.
  • the nozzle bar in this known device has on its underside a replaceable nozzle strip with a variety of fine Outlets for a pressurized medium, in particular water on.
  • the web transported under the nozzle beam (web) is acted upon by the pressurized water jets. Due to the oscillation of the nozzle beam, a blurring of the otherwise emerging as a strip of water jets results.
  • the object of the present invention is to provide an improved production method as well as a device for carrying out this method for a consolidated and a structure aufeisendes nonwoven product.
  • the production method comprises the use of a nozzle web which oscillates driven transversely to the direction of movement of a web of fibers and / or filaments (a web, a pre-web), said nozzle web being another group in addition to a group of solidification of the web having outlet openings for generating the groove-shaped structuring.
  • the nozzle bar essentially performs a harmonic oscillatory movement, so that on the material web a groove-like structuring in the manner of a wavy line arises.
  • a cosmetic article in the form of a cotton pad which also has grooves in the form of wavy lines in addition to a solidified surface, can thus be produced on a system with only one nozzle bar.
  • the surface solidification serving outlet openings have a smaller diameter than the diameter of the visually and / or haptic perceptible structuring serving openings.
  • both groups of openings are arranged in a row in the nozzle strip.
  • further structuring serving openings are arranged in a further row. These openings may have the same diameter or a different diameter.
  • webs are processed, which consist of fibers and / or filaments and are supplied in the form of a nonwoven, a Vorvlies the Wasserstrahlvernadelung.
  • the material web solidified and structured according to the invention is then dried and then subjected to further processing, in particular a cutting operation.
  • the material web preferably consists of bleached, hydrophilic cotton fibers, viscose fibers or the like.
  • FIG. 1 shows schematically an endless belt 30 which, together with the material web 31 to be consolidated, advances in the direction of the arrow 32. At a distance above the material web 31, at a distance arranged senvorken with the upper part 1, whose structure is exemplified in Fig. 2 and described below.
  • the nozzle bar is movably suspended on a fixed wall of the housing 39.
  • the attachment to the housing 39 can be made by spring steel.
  • Another example of the suspension is shown in FIGS. 3 and 4.
  • Another example could be e.g. As an unillustrated, mounted in rails nozzle bar.
  • the water jets 33 emerging from the nozzle slot 13 of the nozzle bar are directed against the material web 31 and cover the width of the material web 31. Via a flexible hose 34, the necessary water 35 reaches the nozzle bar at one end face of the nozzle bar.
  • an electrically driven vibrator 36 is attached to the beam. With this, the nozzle bar in the direction of the double arrow 37 should be brought into vibration without affecting a supporting housing alone. Together with the advance speed 32 of the material web 31, a zigzag or wave pattern of the individual water jets is applied to the material web 31 by means of the reciprocating nozzle beam.
  • the housing of the nozzle bar consists in this example of the upper part 1, which is screwed to the lower part 2 often over the length by the screws 3 from below.
  • the upper part 1 has along two bores 4 and 5, of which the upper is the pressure chamber 4 and the lower the pressure distribution chamber 5. Both chambers are open at one end face and again screwed liquid-tight by a lid, not shown.
  • the pressure chamber 4 has an opening through which the pressurized liquid 35 flows via a flexible hose 34.
  • Over the length of the nozzle bar connect a large number of flow holes 9 in an intermediate wall, the two chambers, so that the liquid flowing into the pressure chamber 4 flows evenly distributed over the length in the pressure distribution chamber 5.
  • the liquid entering through the throughflow holes 9 into the pressure distribution chamber 5 is distributed uniformly over the length of the nozzle beam.
  • the volume of the pressure distribution chamber 5 and an impact body 20, which is held exactly over the length of the pressure distribution chamber 5 between the bores 9 and the slot 10, serve this purpose.
  • the baffle 20 is held at a distance from the intermediate wall 8 and on all sides by the liquid flow around.
  • the baffle body is held in the intermediate wall 8 several times over the length of the nozzle beam by means of screws 21 at a distance.
  • the liquid from the flow holes 9 first meets the baffle 20, is distributed in the distribution chamber 5 and then flows through the slot 10, which also extends over the length of the beam, against the fine holes (outlet openings A) of a nozzle strip 14.
  • the nozzle strip 14 is replaceable and has a plurality of arranged in one or more rows outlet openings A, which have different diameters depending on the function.
  • the upper part 1 with the lower part 2 is firmly and liquid-tight screwed.
  • the tightness is effected by the O-ring 1 1, which is inserted in a circumferential groove of the upper part 1.
  • nozzle bar 12 is inserted to seal the nozzle strip 14.
  • a slot 13 is also introduced in the lower part 2.
  • vibrators 40 'and 40 "are suspended on the nozzle bar alone ( Figures 3 and 4) .
  • the nozzle bar is suspended from the housing 39 via two rubber buffers 41, 42.
  • the two support arms 43 and 44 at the two Ends of the nozzle beam are hinged on the one hand on the nozzle beam and on the other hand suspended elastically on the housing 39.
  • the vibrators 40 ', 40 are flanged on both sides of the nozzle bar in such a way that the vibrating force of the vibrator acts in the area of the center of gravity of the nozzle bar, minimizing all reaction forces of the movements to the overall housing.
  • FIG. 5 shows a part of a nozzle strip 14 in plan view.
  • This nozzle strip 14 is mounted in the system described above and there is the application of a material web 31, from which then, for example, cotton pads are cut.
  • the nozzle strip 14 has a plurality of outlet openings A.
  • two groups G1 and G2 of outlet openings A are provided, wherein the openings A of both groups lie in a common row.
  • the outlet openings A of the first group G1 have a small diameter and serve for surface solidification of the material web 31 to be processed.
  • the outlet openings A of the second group G2 have a larger diameter and serve to produce visible and / or tactile grooves in the nonwoven product.
  • the oscillation frequency along with the amplitude of the nozzle beam (upper part 1) is matched to the feed rate of the material web 31 (FIG. 1) in such a way that the desired wavy lines L, R are formed (FIG. 10).
  • FIG. 10 the oscillation frequency along with the amplitude of the nozzle beam
  • the two groups G1 and G2 of the outlet openings A are arranged in two mutually parallel rows.
  • the outlet openings A of the first group G1 in turn have a small diameter and serve for surface solidification of the material web 31 to be processed.
  • the outlet openings A of the second group G2 have a larger diameter and serve to produce the grooves R (FIG. 10) in the nonwoven product ,
  • the nozzle strip is preferably mounted in the nozzle bar such that the outlet openings A of the first group G1 (for web bonding - lines L - FIG. 10) lie in the running direction of the material web 31 in front of the openings A of the second group G2 (creation of grooves R - FIG. 10).
  • the nozzle strip 14 In the nozzle strip 14 according to FIG. 7, three groups G1, G2, G3 of outlet openings are provided.
  • the first group G1 of the openings A with a small diameter serves to solidify the material web 31.
  • In this row are also outlet openings of the second group G2 with a larger diameter.
  • the third group G3 at larger diameter exit ports A lie in a separate row parallel to the row with the openings A of groups G1 and G2.
  • the foreshortening of the visible and / or feltable grooves R is effected through the openings of the groups G2 and G3.
  • the group G3 lies in the running direction of the material web 31 behind the row of the group G1, G2.
  • the two groups G1 and G2 outlet openings A are arranged in two mutually parallel rows.
  • the outlet openings A of the first group G1 in turn have a small diameter and serve for surface solidification of the material web 31 to be processed.
  • the outlet openings A of the second group G2 have a large diameter and serve to produce the grooves in the nonwoven product.
  • the series with the outlet openings A of the first group G1 is carried out interrupted in contrast to Figure 6, such that in a zone with a discharge opening A large diameter (group G2: embossment of a groove R) no outlet A with a small diameter is.
  • FIG. 9 Another possibility is shown in FIG. 9.
  • two outlet openings A with large diameters are provided for embossing a double groove - group G2.
  • FIG. 10 shows a detail of a material web 31 according to the invention processed according to FIG. 1.
  • the fine lines L with a small distance represent the solidification lines in the surface of the material web and are produced with the outlet openings A of the first group G1 with a small diameter.
  • 60 outlet openings per inch (60 hpi) at small diameter outlet openings (first group G1) such fine solidification lines L are formed at a distance of 0.423 mm.
  • the diameter of the corresponding outlet openings (group G1) is for example 0.1 mm.
  • the distance of the outlet openings A of the second group G2 is for example 9 mm, so that the grooves R have a corresponding distance.
  • the grooves R embossing outlet openings may have a diameter of 0.2 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The invention relates to a method and to an apparatus for producing a nonwoven fabric product, which is compacted by water jet impingement and has a groove-shaped structuring on the surface thereof. In one embodiment of the invention, a nozzle bar which has a nozzle strip (14) and is driven in an oscillating manner transversely to the direction of movement of a material web is used, wherein the nozzle strip comprises a plurality of outlet openings for subjecting the material web to the water jet impingement and, in addition to a group of outlet openings (A; G1) serving the compaction of the material web, comprises a further group of outlet openings (A; G2) for generating a structuring.

Description

Verfahren und Vorrichtung zur Herstellung eines Vliesproduktes Method and device for producing a nonwoven product
Die Erfindung betrifft ein Verfahren zur Herstellung eines Vliesproduktes sowie eine Vorrichtung zur Durchführung des Verfahrens gemäß dem Oberbegriff des jeweiligen Anspruches.The invention relates to a method for producing a nonwoven product and to an apparatus for carrying out the method according to the preamble of the respective claim.
Aus der EP 1 310 226 B1 ist ein Vliesprodukt in Form eines kosmetischen Wattepad bekannt, welches durch Wasserstrahlvernadelung ver- festigt ist und welches an seiner Oberfläche neben den durch die Wasserstrahlvernadelung entstandenen Feinrillen eine rillenförmige Strukturierung in Form von Grobrillen, insbesondere in Form von Wellenlinien aufweist. Die Herstellung erfolgt durch mehrstufig hintereinander ausgeführte Wasserstrahlvorgänge. Ein ähnlich strukturiertes Produkt be- schreibt die EP 1 106 723 B1.From EP 1 310 226 B1, a nonwoven product in the form of a cosmetic cotton pad is known, which is reinforced by water jet needling and which has on its surface, in addition to the fine grooves formed by water jet needling, groove-shaped structuring in the form of large grooves, in particular in the form of wavy lines , The production is carried out by multi-stage consecutively executed water jet processes. A similarly structured product is described in EP 1 106 723 B1.
Mehrere hintereinander auszuführende Wasserstrahlvemadelungsvor- gänge erfordern einen hohen Maschiπenaufwand. Alternativ können mehrere Bearbeitungsvorgänge auch auf einer Anlage durchgeführt wer- den, wenn diese nach jedem Durchgang entsprechend umgerüstet wird. Dies bedingt Handhabungsaufwand und vergrößert das Risiko von Aus- schuss.Several Wasserstrahlvemadelungsvor- courses to be carried out in a row require a high Maschiπenaufwand. Alternatively, several machining operations can also be carried out on a system if it is converted accordingly after each pass. This requires handling effort and increases the risk of rejects.
Eine Wasserstrahlvernadelung unter Verwendung eines senkrecht zur Förderichtung einer Materialbahn hin- und her schwingenden Düsenbalkens ist aus der DE 198 28 118 A1 bekannt. Zur Vermeidung einer Längsstreifigkeit in der Oberfläche der Materialbahn ist dem Düsenbalken ein Oszillator zugeordnet, mit dem der Düsenbalken periodisch in seiner Längsrichtung bewegt wird.A water jet needling using a perpendicular to the conveying direction of a material web reciprocating nozzle beam is known from DE 198 28 118 A1. To avoid longitudinal streaking in the surface of the material web, the nozzle beam is assigned an oscillator with which the nozzle beam is moved periodically in its longitudinal direction.
Der Düsenbalken bei dieser bekannten Einrichtung weist an seiner Unterseite einen auswechselbaren Düsenstreifen mit einer Vielzahl feiner Austrittsöffnungen für ein unter Druck stehendes Medium, insbesondere Wasser auf. Das einer Bahn unter dem Düsenbalken transportierte Vlies (Materialbahn) wird mit den Druckwasserstrahlen beaufschlagt. Durch die Oszillation des Düsenbalkens ergibt sich ein Verwischen der sonst sich als Streifen abzeichnenden Wasserstrahlen.The nozzle bar in this known device has on its underside a replaceable nozzle strip with a variety of fine Outlets for a pressurized medium, in particular water on. The web transported under the nozzle beam (web) is acted upon by the pressurized water jets. Due to the oscillation of the nozzle beam, a blurring of the otherwise emerging as a strip of water jets results.
Die Verwendung eines Düsenstreifens mit in mehreren Reihen angeordneten Austrittsöffnungen ist aus der US 4 069 563 bekannt.The use of a nozzle strip with outlet openings arranged in several rows is known from US Pat. No. 4,069,563.
Aufgabe der vorliegenden Erfindung ist es, ein verbessertes Herstellungsverfahren sowie eine dieses Verfahren durchführende Vorrichtung für ein verfestigtes und eine Struktur aufeisendes Vliesprodukt bereitzustellen.The object of the present invention is to provide an improved production method as well as a device for carrying out this method for a consolidated and a structure aufeisendes nonwoven product.
Gelöst wird diese Aufgabe durch die Merkmale des auf das Herstellungsverfahren bzw. die Vorrichtung gerichteten Anspruches. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den jeweiligen Unteransprüchen.This object is achieved by the features of the claim directed to the manufacturing process and the device. Advantageous developments of the invention will become apparent from the respective dependent claims.
Gemäß der Erfindung ist als Herstellungsverfahren der Einsatz eines quer zur Bewegungsrichtung einer aus Fasern und/oder Filamenten bestehenden Materialbahn (eines Vlies, eines Vorvlies) oszillierend angetriebenen Düsenbalkens vorgesehen, wobei dieser Düsenbalken neben einer Gruppe der Verfestigung der Materialbahn dienenden Austrittsöff- nungen eine weitere Gruppe von Austrittsöffnungen zur Erzeugung der rillenförmigen Strukturierung aufweist.According to the invention, the production method comprises the use of a nozzle web which oscillates driven transversely to the direction of movement of a web of fibers and / or filaments (a web, a pre-web), said nozzle web being another group in addition to a group of solidification of the web having outlet openings for generating the groove-shaped structuring.
Somit ist es insbesondere möglich, die Materialbahn durch eine einzige Wasserstrahlvernadelung mit dem oszillierenden Düsenbalken zu verfes- tigen und zu strukturieren. Vorzugsweise führt der Düsenbalken im Wesentlichen eine harmonische Schwingbewegung aus, so dass auf der Materialbahn eine rillenförmige Strukturierung nach Art einer Wellenlinie entsteht.Thus, it is possible, in particular, to consolidate and structure the material web by means of a single water-jet needling with the oscillating nozzle bar. Preferably, the nozzle bar essentially performs a harmonic oscillatory movement, so that on the material web a groove-like structuring in the manner of a wavy line arises.
Ein Kosmetikartikel in Form eines Wattepad, der neben einer verfestigten Oberfläche auch Rillen in Form von Wellenlinien aufweist, kann so auf einer Anlage mit nur einem Düsenbalken hergestellt werden.A cosmetic article in the form of a cotton pad, which also has grooves in the form of wavy lines in addition to a solidified surface, can thus be produced on a system with only one nozzle bar.
Bevorzugt weisen die der flächigen Verfestigung dienenden Austrittsöffnungen einen kleineren Durchmesser auf als die Durchmesser der der visuell und/oder haptisch wahrnehmbaren Strukturierung dienenden Öff- nungen.Preferably, the surface solidification serving outlet openings have a smaller diameter than the diameter of the visually and / or haptic perceptible structuring serving openings.
Nach einer Ausführungsform der Erfindung sind beide Gruppen von Öffnungen in einer Reihe im Düsenstreifen angeordnet. Zusätzlich kann vorgesehen sein, dass zusätzlich weitere der Strukturierung dienende Öffnungen in einer weiteren Reihe angeordnet sind. Diese Öffnungen können den gleichen Durchmesser oder einen davon abweichenden Durchmesser aufweisen.According to one embodiment of the invention, both groups of openings are arranged in a row in the nozzle strip. In addition, it can be provided that in addition further structuring serving openings are arranged in a further row. These openings may have the same diameter or a different diameter.
Mit der Erfindung sind Materialbahnen bearbeitbar, welche aus Fasern und/oder Filamenten bestehen und in Form eines Vlies, eines Vorvlies der Wasserstrahlvernadelung zugeführt werden. Die nach der Erfindung verfestigte und strukturierte Materialbahn wird anschließend getrocknet und dann einer Weiterverarbeitung, insbesondere einem Schneidvorgang, unterzogen. Bei der Herstellung von Hygieneartikeln besteht die Materialbahn bevorzugt aus gebleichten, hydrophilen Baumwollfasern, Viskosefasern oder dgl..With the invention, webs are processed, which consist of fibers and / or filaments and are supplied in the form of a nonwoven, a Vorvlies the Wasserstrahlvernadelung. The material web solidified and structured according to the invention is then dried and then subjected to further processing, in particular a cutting operation. In the manufacture of hygiene articles, the material web preferably consists of bleached, hydrophilic cotton fibers, viscose fibers or the like.
Des Weiteren erfolgt die Erläuterung der Funktion und von Ausführungsbeispielen der Erfindung an Hand der Zeichnungen.Furthermore, the explanation of the function and embodiments of the invention with reference to the drawings.
In der Fig. 1 ist schematisch ein Endlosband 30 dargestellt, das zusammen mit der zu verfestigenden Materialbahn 31 in Richtung des Pfeils 32 vorläuft. Quer dazu ist mit Abstand oberhalb der Materialbahn 31 ein Du- senbalken mit dem Oberteil 1 angeordnet, dessen Aufbau beispielhaft in Fig. 2 dargestellt und weiter unten beschrieben ist.1 shows schematically an endless belt 30 which, together with the material web 31 to be consolidated, advances in the direction of the arrow 32. At a distance above the material web 31, at a distance arranged senvorken with the upper part 1, whose structure is exemplified in Fig. 2 and described below.
Der Düsenbalken ist bewegbar an einer ortsfesten Wand des Gehäuses 39 aufgehängt. Die Befestigung an dem Gehäuse 39 kann über Federstahl erfolgen. Ein anderes Beispiel der Aufhängung zeigen die Figuren 3 und 4. Ein weiteres Beispiel könnte z. B. ein nicht dargestellter, in Schienen gelagerter Düsenbalken sein.The nozzle bar is movably suspended on a fixed wall of the housing 39. The attachment to the housing 39 can be made by spring steel. Another example of the suspension is shown in FIGS. 3 and 4. Another example could be e.g. As an unillustrated, mounted in rails nozzle bar.
Die aus dem Düsenschlitz 13 des Düsenbalkens austretenden Wasserstrahlen 33 sind gegen die Materialbahn 31 gerichtet und überstreichen die Breite der Materialbahn 31. Über einen flexiblen Schlauch 34 gelangt an der einen Stirnseite des Düsenbalkens das notwendige Wasser 35 in den Düsenbalken.The water jets 33 emerging from the nozzle slot 13 of the nozzle bar are directed against the material web 31 and cover the width of the material web 31. Via a flexible hose 34, the necessary water 35 reaches the nozzle bar at one end face of the nozzle bar.
In der Mitte des Düsenbalkens ist gemäß Fig. 3 ein elektrisch angetriebener Vibrator 36 am Balken befestigt. Mit diesem soll ohne Beeinträchtigung eines tragenden Gehäuses allein der Düsenbalken in Richtung des Doppelpfeils 37 in Schwingungen gebracht werden. Zusammen mit der Vorlaufgeschwindigkeit 32 der Materialbahn 31 wird mittels des hin- und her schwingenden Düsenbalkens ein Zickzack- bzw. Wellenmuster der einzelnen Wasserstrahlen auf die Materialbahn 31 aufgegeben.In the middle of the nozzle beam of FIG. 3, an electrically driven vibrator 36 is attached to the beam. With this, the nozzle bar in the direction of the double arrow 37 should be brought into vibration without affecting a supporting housing alone. Together with the advance speed 32 of the material web 31, a zigzag or wave pattern of the individual water jets is applied to the material web 31 by means of the reciprocating nozzle beam.
Wie in der DE-A-195 01 738 im einzelnen beschrieben, besteht das Ge- häuse des Düsenbalkens in diesem Beispiel aus dem Oberteil 1 , das mit dem Unterteil 2 vielfach über die Länge durch die Schrauben 3 von unten verschraubt ist. Das Oberteil 1 weist längs zwei Bohrungen 4 und 5 auf, von denen die obere die Druckkammer 4 und die untere die Druckverteilkammer 5 ist. Beide Kammern sind an der einen Stirnseite offen und wieder durch einen nicht dargestellten Deckel flüssigkeitsdicht verschraubt. Im Bereich der anderen Stirnseite weist die Druckkammer 4 eine Öffnung auf, durch die die unter Druck gesetzte Flüssigkeit 35 über einen flexiblen Schlauch 34 zuströmt. Über die Länge des Düsenbalkens verbinden eine große Anzahl von Durchflussbohrungen 9 in einer Zwischenwand die beiden Kammern, so dass die in die Druckkammer 4 einströmende Flüssigkeit gleichmäßig verteilt über die Länge in die Druckverteilkammer 5 ausströmt. Die durch die Durchflussbohrungen 9 in die Druckverteilkammer 5 eintretende Flüssigkeit verteilt sich hier gleichmäßig über die Länge des Düsenbalkens. Dazu dient das Volumen der Druckverteilkammer 5 und ein Prallkörper 20, der über die Länge der Druckverteilkammer 5 genau zwischen den Bohrungen 9 und dem Schlitz 10 gehalten ist.As described in detail in DE-A-195 01 738, the housing of the nozzle bar consists in this example of the upper part 1, which is screwed to the lower part 2 often over the length by the screws 3 from below. The upper part 1 has along two bores 4 and 5, of which the upper is the pressure chamber 4 and the lower the pressure distribution chamber 5. Both chambers are open at one end face and again screwed liquid-tight by a lid, not shown. In the region of the other end face, the pressure chamber 4 has an opening through which the pressurized liquid 35 flows via a flexible hose 34. Over the length of the nozzle bar connect a large number of flow holes 9 in an intermediate wall, the two chambers, so that the liquid flowing into the pressure chamber 4 flows evenly distributed over the length in the pressure distribution chamber 5. The liquid entering through the throughflow holes 9 into the pressure distribution chamber 5 is distributed uniformly over the length of the nozzle beam. The volume of the pressure distribution chamber 5 and an impact body 20, which is held exactly over the length of the pressure distribution chamber 5 between the bores 9 and the slot 10, serve this purpose.
Der Prallkörper 20 ist mit Abstand zur Zwischenwand 8 gehalten und allseitig von der Flüssigkeit umströmbar. Um dies zu ermöglichen, ist der Prallkörper in der Zwischenwand 8 mehrfach über die Länge des Düsen- balkens mittels Schrauben 21 auf Abstand gehalten. Auf diese Weise trifft die Flüssigkeit aus den Durchflussbohrungen 9 zunächst auf den Prallkörper 20, verteilt sich in der Verteilkammer 5 und strömt dann durch den Schlitz 10, der sich ebenfalls über die Länge des Balkens erstreckt, gegen die feinen Bohrungen (Austrittsöffnungen A) eines Düsenstreifens 14. Der Düsenstreifen 14 ist auswechselbar und weist eine Vielzahl von in einer oder mehreren Reihen angeordneten Austrittsöffnungen A auf, welche in Abhängigkeit der Funktion unterschiedliche Durchmesser besitzen.The baffle 20 is held at a distance from the intermediate wall 8 and on all sides by the liquid flow around. In order to make this possible, the baffle body is held in the intermediate wall 8 several times over the length of the nozzle beam by means of screws 21 at a distance. In this way, the liquid from the flow holes 9 first meets the baffle 20, is distributed in the distribution chamber 5 and then flows through the slot 10, which also extends over the length of the beam, against the fine holes (outlet openings A) of a nozzle strip 14. The nozzle strip 14 is replaceable and has a plurality of arranged in one or more rows outlet openings A, which have different diameters depending on the function.
Gemäß Fig. 2 ist das Oberteil 1 mit dem Unterteil 2 fest und flüssigkeitsdicht verschraubt. Die Dichtigkeit wird durch den O-Ring 1 1 bewirkt, der in einer umlaufenden Nut des Oberteils 1 eingelegt ist. Von dem O-RingAccording to Fig. 2, the upper part 1 with the lower part 2 is firmly and liquid-tight screwed. The tightness is effected by the O-ring 1 1, which is inserted in a circumferential groove of the upper part 1. From the O-ring
1 1 umgeben ist ein Federvorsprung 23, der in einer entsprechenden Nut 24 des Unterteils 2 eingepasst ist. In dem Boden der Nut 24 des Unter- teils 2 ist wiederum eine umlaufende Nut eingebracht, in der der O-Ring1 1 is surrounded a spring projection 23 which is fitted in a corresponding groove 24 of the lower part 2. In the bottom of the groove 24 of the lower part 2 in turn a circumferential groove is introduced, in which the O-ring
12 zur Abdichtung des Düsenstreifens 14 eingelegt ist. In einer Linie unterhalb der Flüssigkeitsdurchflussbohrungen 9 und des Schlitzes 10 ist im Unterteil 2 ebenfalls ein Schlitz 13 eingebracht. Für den oszillierenden Antrieb sind Vibratoren 40' und 40" allein am Düsenbalken aufgehängt (Fig. 3 und 4). Der Düsenbalken ist hängend über je zwei Gummipuffer 41 , 42 am Gehäuse 39 gelagert. Die beiden Trag- arme 43 und 44 an den beiden Enden des Düsenbalkens sind einerseits am Düsenbalken gelenkig angebracht und andererseits am Gehäuse 39 elastisch aufgehängt.12 is inserted to seal the nozzle strip 14. In a line below the liquid flow holes 9 and the slot 10, a slot 13 is also introduced in the lower part 2. For the oscillating drive, vibrators 40 'and 40 "are suspended on the nozzle bar alone (Figures 3 and 4) .The nozzle bar is suspended from the housing 39 via two rubber buffers 41, 42. The two support arms 43 and 44 at the two Ends of the nozzle beam are hinged on the one hand on the nozzle beam and on the other hand suspended elastically on the housing 39.
Die Vibratoren 40', 40" sind an beiden Seiten des Düsenbalkens ange- flanscht und zwar derart, dass die hin und her bewegende Kraft des Vib- rators im Bereich des Schwerpunktes des Düsenbalkens angreift. Dies minimiert sämtliche Reaktionskräfte der Bewegungen auf das Gesamtgehäuse.The vibrators 40 ', 40 "are flanged on both sides of the nozzle bar in such a way that the vibrating force of the vibrator acts in the area of the center of gravity of the nozzle bar, minimizing all reaction forces of the movements to the overall housing.
Figur 5 zeigt einen Teil eines Düsenstreifens 14 in Draufsicht. Dieser Düsenstreifen 14 ist in der zuvor beschriebenen Anlage montiert und es erfolgt die Beaufschlagung einer Materialbahn 31 , aus der anschließend bspw. Wattepads geschnitten werden.FIG. 5 shows a part of a nozzle strip 14 in plan view. This nozzle strip 14 is mounted in the system described above and there is the application of a material web 31, from which then, for example, cotton pads are cut.
Der Düsenstreifen 14 weist eine Vielzahl von Austrittsöffnungen A auf. Bei diesem Ausführungsbeispiel sind zwei Gruppen G1 und G2 von Austrittsöffnungen A vorgesehen, wobei die Öffnungen A beider Gruppen in einer gemeinsamen Reihe liegen. Die Austrittsöffnungen A der ersten Gruppe G1 haben einen kleinen Durchmesser und dienen der flächigen Verfestigung der zu bearbeitenden Materialbahn 31. Die Austrittsöffnungen A der zweiten Gruppe G2 weisen einen größeren Durchmesser auf und dienen der Erzeugung von sieht- und/oder fühlbaren Rillen in dem Vliesprodukt. Die Schwingungsfrequenz nebst Amplitude des Düsenbalkens (Oberteil 1 ) ist derartig auf die Vorschubgeschwindigkeit der Mate- rialbahn 31 (Fig. 1 ) abgestimmt, so dass die gewünschten Wellenlinien L, R entstehen (Figur 10). Bei der Ausführung nach Fig. 6 sind die beiden Gruppen G1 und G2 der Austrittsöffnungen A in 2 parallel zueinander verlaufenden Reihen angeordnet. Die Austrittsöffnungen A der ersten Gruppe G1 haben wiederum einen kleinen Durchmesser und dienen der flächigen Verfestigung der zu bearbeitenden Materialbahn 31. Die Austrittsöffnungen A der zweiten Gruppe G2 weisen einen größeren Durchmesser auf und dienen der Erzeugung der Rillen R (Fig. 10) in dem Vliesprodukt. Der Düsenstreifen wird vorzugsweise so im Düsenbalken montiert, dass die Austrittsöffnungen A der ersten Gruppe G1 (zur Vliesverfestigung - Linien L - Figur 10) in Laufrichtung der Materialbahn 31 vor den Öffnungen A der zweiten Gruppe G2 (Erzeugung Rillen R - Figur 10) liegen.The nozzle strip 14 has a plurality of outlet openings A. In this embodiment, two groups G1 and G2 of outlet openings A are provided, wherein the openings A of both groups lie in a common row. The outlet openings A of the first group G1 have a small diameter and serve for surface solidification of the material web 31 to be processed. The outlet openings A of the second group G2 have a larger diameter and serve to produce visible and / or tactile grooves in the nonwoven product. The oscillation frequency along with the amplitude of the nozzle beam (upper part 1) is matched to the feed rate of the material web 31 (FIG. 1) in such a way that the desired wavy lines L, R are formed (FIG. 10). In the embodiment of Fig. 6, the two groups G1 and G2 of the outlet openings A are arranged in two mutually parallel rows. The outlet openings A of the first group G1 in turn have a small diameter and serve for surface solidification of the material web 31 to be processed. The outlet openings A of the second group G2 have a larger diameter and serve to produce the grooves R (FIG. 10) in the nonwoven product , The nozzle strip is preferably mounted in the nozzle bar such that the outlet openings A of the first group G1 (for web bonding - lines L - FIG. 10) lie in the running direction of the material web 31 in front of the openings A of the second group G2 (creation of grooves R - FIG. 10).
Bei dem Düsenstreifen 14 nach Figur 7 sind drei Gruppen G1 , G2, G3 von Austrittsöffnungen vorgesehen. Die erste Gruppe G1 der Öffnungen A mit kleinem Durchmesser dient der Verfestigung der Materialbahn 31. In dieser Reihe liegen ebenfalls Austrittsöffnungen der zweiten Gruppe G2 mit einem größeren Durchmesser. Die dritte Gruppe G3 an Austrittsöffnungen A mit größerem Durchmesser liegen in einer separaten Reihe parallel zu der Reihe mit den Öffnungen A der Gruppen G1 und G2. Durch die Öffnungen der Gruppen G2 und G3 erfolgt das prägen der sieht und/oder fühlbaren Rillen R. Vorzugsweise liegt die Gruppe G3 in Laufrichtung der Materialbahn 31 hinter der Reihe der Gruppe G1 , G2.In the nozzle strip 14 according to FIG. 7, three groups G1, G2, G3 of outlet openings are provided. The first group G1 of the openings A with a small diameter serves to solidify the material web 31. In this row are also outlet openings of the second group G2 with a larger diameter. The third group G3 at larger diameter exit ports A lie in a separate row parallel to the row with the openings A of groups G1 and G2. The foreshortening of the visible and / or feltable grooves R is effected through the openings of the groups G2 and G3. Preferably, the group G3 lies in the running direction of the material web 31 behind the row of the group G1, G2.
Bei der Anordnung nach Figur 8 sind die beiden Gruppen G1 und G2 Austrittsöffnungen A in zwei parallel zueinander verlaufenden Reihen angeordnet. Die Austrittsöffnungen A der ersten Gruppe G1 haben wiederum einen kleinen Durchmesser und dienen der flächigen Verfestigung der zu bearbeitenden Materialbahn 31. Die Austrittsöffnungen A der zweiten Gruppe G2 weisen einen großen Durchmesser auf und dienen der Erzeugung der Rillen in dem Vliesprodukt. Die Reihe mit den Austrittsöffnungen A der ersten Gruppe G1 ist im Gegensatz zu Figur 6 unterbrochen ausgeführt, derart, dass in einer Zone mit einer Austrittsöff- nung A mit großem Durchmesser (Gruppe G2: Prägung einer Rille R) keine Austrittsöffnung A mit einem kleinen Durchmesser liegt.In the arrangement of Figure 8, the two groups G1 and G2 outlet openings A are arranged in two mutually parallel rows. The outlet openings A of the first group G1 in turn have a small diameter and serve for surface solidification of the material web 31 to be processed. The outlet openings A of the second group G2 have a large diameter and serve to produce the grooves in the nonwoven product. The series with the outlet openings A of the first group G1 is carried out interrupted in contrast to Figure 6, such that in a zone with a discharge opening A large diameter (group G2: embossment of a groove R) no outlet A with a small diameter is.
Eine weitere Möglichkeit zeigt Figur 9. Hier sind zum Prägen einer Dop- pelrille jeweils zwei Austrittsöffnungen A mit großem Durchmesser vorgesehen - Gruppe G2.Another possibility is shown in FIG. 9. Here, two outlet openings A with large diameters are provided for embossing a double groove - group G2.
Figur 10 zeigt einen Ausschnitt einer gemäß der Erfindung bearbeiteten Materialbahn 31 gemäß Fig. 1. Die feinen Linien L mit geringem Abstand stellen die Verfestigungslinien in der Oberfläche der Materialbahn dar und sind mit den Austrittsöffnungen A der ersten Gruppe G1 mit kleinem Durchmesser erzeugt. Bei 60 Austrittsöffnungen pro inch (60 hpi) an Austrittsöffnungen mit kleinem Durchmesser (erste Gruppe G1 ) entstehen so feine Verfestigungslinien L im Abstand von 0.423 mm. Der Durchmesser der entsprechenden Austrittsöffnungen (Gruppe G1 ) beträgt beispielsweise 0.1 mm. Der Abstand der Austrittsöffnungen A der zweiten Gruppe G2 beträgt beispielsweise 9 mm, so dass die Rillen R einen entsprechenden Abstand aufweisen. Die die Rillen R prägenden Austrittsöffnungen können einen Durchmesser von 0.2 mm aufweisen. FIG. 10 shows a detail of a material web 31 according to the invention processed according to FIG. 1. The fine lines L with a small distance represent the solidification lines in the surface of the material web and are produced with the outlet openings A of the first group G1 with a small diameter. With 60 outlet openings per inch (60 hpi) at small diameter outlet openings (first group G1), such fine solidification lines L are formed at a distance of 0.423 mm. The diameter of the corresponding outlet openings (group G1) is for example 0.1 mm. The distance of the outlet openings A of the second group G2 is for example 9 mm, so that the grooves R have a corresponding distance. The grooves R embossing outlet openings may have a diameter of 0.2 mm.

Claims

Ansprüche claims
1. Verfahren zur Herstellung eines Vliesproduktes, welches durch Wasserstrahlbeaufschlagung verfestigt ist und welches an seiner Ober- fläche eine rillenförmige Strukturierung aufweist, gekennzeichnet durch, die Verwendung eines quer zur Bewegungsrichtung einer Materialbahn oszillierend angetriebenen Düsenbalkens, wobei dieser Düsenbalken neben einer Gruppe der Verfestigung der Materialbahn dienenden Aus- trittsöffnungen eine weitere Gruppe von Austrittsöffnungen zur Erzeugung der rillenförmigen Strukturierung aufweist.1. A process for producing a nonwoven product which is solidified by water jet application and which has a groove-shaped structuring on its surface, characterized by the use of a nozzle beam oscillatingly driven transversely to the direction of movement of a material web, said nozzle beam next to a group of solidification of the material web serving outlet openings has a further group of outlet openings for generating the groove-shaped structuring.
2. Verfahren nach Anspruch 1 , gekennzeichnet durch, die Materialbahn wird durch eine einzige Wasserstrahlbeaufschlagung mit dem oszillierenden Düsenbalken verfestigt und strukturiert.2. The method according to claim 1, characterized by, the material web is solidified and structured by a single Wasserstrahlbeaufschlagung with the oscillating nozzle beam.
3. Verfahren nach Anspruch 1 oder 2, gekennzeichnet durch, der Düsenbalken führt im Wesentlichen eine harmonische Schwingbe- wegung aus, so dass auf der Materialbahn eine rillenförmige Strukturierung nach Art einer Wellenlinie entsteht. 3. The method of claim 1 or 2, characterized by, the nozzle beam performs substantially a harmonic oscillatory motion, so that on the material web, a groove-shaped structuring in the manner of a wavy line is formed.
4. Vorrichtung zur Durchführung des Verfahrens wenigstens nach Anspruch 1 , mit folgenden Merkmalen:4. Apparatus for carrying out the method according to claim 1, having the following features:
- einem Düsenbalken (1 ) zur Wasserstrahlbeaufschlagung einer aus Fasern und/oder Filamenten bestehenden Materialbahn (31 ), wobei der Düsenbalken (1 ) sich quer zu der bewegten Materialbahn (31 ) erstreckt,a nozzle bar (1) for supplying water to a web of fibers and / or filaments (31), the nozzle bar (1) extending transversely to the moving web (31),
- der Düsenbalken (1 ) weist zur Wasserstrahlbeaufschlagung der Bewegten Materialbahn (31 ) neben einer Gruppe der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A) eine weitere Gruppe von Austrittsöffnungen (A) zur Erzeugung einer Strukturierung auf, - einem Antrieb (40', 40") zur Erzeugung einer Schwingbewegung des Düsenbalkens (1 ) in dessen Erstreckungsrichtung quer zur Materialbahn (31 ).- The nozzle beam (1) for Wasserstrahlbeaufschlagung the moving web (31) in addition to a group of solidification of the material web (31) serving outlet openings (A) another group of outlet openings (A) for generating a structuring, - a drive (40 '. , 40 ") for generating a swinging movement of the nozzle bar (1) in its direction of extension transverse to the material web (31).
5. Vorrichtung nach Anspruch 4, gekennzeichnet durch, die der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) weisen einen anderen Durchmesser auf wie die Austrittsöffnun- gen (A; G2) zur Erzeugung einer Strukturierung.5. Apparatus according to claim 4, characterized by, the solidification of the material web (31) serving outlet openings (A; G1) have a different diameter than the outlet openings (A; G2) to produce a structuring.
6. Vorrichtung nach Anspruch 4 oder 5, gekennzeichnet durch, die der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) und die Austrittsöffnungen (A; G2) zur Erzeugung einer Strukturierung liegen in einer Reihe. 6. Apparatus according to claim 4 or 5, characterized by, the solidification of the material web (31) serving outlet openings (A; G1) and the outlet openings (A; G2) for generating a structuring are in a row.
7. Vorrichtung nach Anspruch 4 oder 5, gekennzeichnet durch, die der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) liegen in einer Reihe und die Austrittsöffnungen (A; G2) zur Erzeugung einer Strukturierung liegen in einer parallel dazu verlaufenden Reihe.7. Apparatus according to claim 4 or 5, characterized by, the solidification of the material web (31) serving outlet openings (A; G1) lie in a row and the outlet openings (A; G2) for generating a structuring lie in a row extending parallel thereto ,
8. Vorrichtung nach einem der Ansprüche 4 - 7, gekennzeichnet durch, die der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) und die Austrittsöffnungen (A; G2) zur Erzeugung einer Strukturierung sind in einem Düsenstreifen (14) des Düsenbalkens (1 ) angeord- net.8. Device according to one of claims 4 - 7, characterized by, the solidification of the material web (31) serving outlet openings (A; G1) and the outlet openings (A; G2) for generating a structuring are in a nozzle strip (14) of the nozzle beam (1).
9. Düsenstreifen zur Verwendung innerhalb eines Düsenbalkens zur Herstellung eines Vliesproduktes, welches durch Wasserstrahlbeaufschlagung verfestigt ist, wobei der Düsenstreifen zur Wasserstrahlbeaufschlagung der Materialbahn eine Vielzahl von Austrittsöffnungen aufweist und der Düsenbalken durch einen zugeordneten Antrieb quer zur Materialbahn in Schwingbewegungen versetzt wird, gekennzeichnet durch, dass der Düsenstreifen (14) neben einer Gruppe der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) eine weitere Gruppe von Austrittsöffnungen (A; G2) zur Erzeugung einer Strukturierung aufweist. 9. nozzle strip for use within a nozzle beam for producing a nonwoven product which is solidified by Wasserstrahlbeaufschlagung, wherein the nozzle strip for Wasserstrahlbeaufschlagung the web has a plurality of outlet openings and the nozzle bar is offset by an associated drive transversely to the web in oscillatory movements, characterized in that the nozzle strip (14) in addition to a group of solidification of the material web (31) serving outlet openings (A; G1) has a further group of outlet openings (A; G2) for generating a structuring.
10. Vorrichtung nach Anspruch 9, gekennzeichnet durch, die der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) weisen einen anderen Durchmesser auf wie die Austrittsöffnungen (A; G2) zur Erzeugung einer Strukturierung.10. The device according to claim 9, characterized by, the solidification of the material web (31) serving outlet openings (A; G1) have a different diameter than the outlet openings (A; G2) to produce a structuring.
11. Vorrichtung nach Anspruch 9 oder 10, gekennzeichnet durch, die der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) und die Austrittsöffnungen (A; G2) zur Erzeugung einer Struktu- rierung liegen in einer Reihe.11. The device according to claim 9 or 10, characterized by, the solidification of the material web (31) serving outlet openings (A; G1) and the outlet openings (A; G2) for generating a structuring ration lie in a row.
12. Vorrichtung nach Anspruch 9 oder 10, gekennzeichnet durch, die der Verfestigung der Materialbahn (31 ) dienenden Austrittsöffnungen (A; G1 ) liegen in einer Reihe und die Austrittsöffnungen (A; G2) zur Erzeugung einer Strukturierung liegen in einer parallel dazu verlaufenden Reihe. 12. Device according to claim 9 or 10, characterized in that the solidification of the material web (31) serving outlet openings (A; G1) lie in a row and the outlet openings (A; G2) for generating a structuring lie in a row extending parallel thereto ,
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WO2010063253A1 (en) 2010-06-10
DE102008060327A1 (en) 2010-06-10
EP2352872B1 (en) 2013-01-16
EA201100894A1 (en) 2012-01-30
CN102239286A (en) 2011-11-09
EA020014B1 (en) 2014-08-29
PL2352872T3 (en) 2013-06-28

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