EP0343331B1 - Apparatus for producing a mat of continuous filaments and the manufacturing of multilayer mat with continuous filaments - Google Patents
Apparatus for producing a mat of continuous filaments and the manufacturing of multilayer mat with continuous filaments Download PDFInfo
- Publication number
- EP0343331B1 EP0343331B1 EP89104691A EP89104691A EP0343331B1 EP 0343331 B1 EP0343331 B1 EP 0343331B1 EP 89104691 A EP89104691 A EP 89104691A EP 89104691 A EP89104691 A EP 89104691A EP 0343331 B1 EP0343331 B1 EP 0343331B1
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- European Patent Office
- Prior art keywords
- spinning
- laying
- beams
- continuous filaments
- mat
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000003892 spreading Methods 0.000 claims abstract description 8
- 239000003380 propellant Substances 0.000 claims abstract description 3
- 238000009987 spinning Methods 0.000 claims description 52
- 230000008021 deposition Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 description 9
- 238000000151 deposition Methods 0.000 description 7
- 239000000155 melt Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
Classifications
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- 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
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/05—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in another pattern, e.g. zig-zag, sinusoidal
-
- 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
- D04H3/005—Synthetic yarns or filaments
-
- 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
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
-
- 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
- D04H3/16—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 thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
Definitions
- the invention relates to a device for producing a nonwoven from continuous filaments according to the preamble of claim 1, and the invention also relates to a multilayer nonwoven made from continuous filaments.
- DE-PS 17 85 158, GB-PS 12 82 176 and GB-PS 12 97 582 devices for producing a nonwoven from continuous filaments are already known.
- a sheet of threads is drawn off from a melt and from spinnerets with the aid of a gaseous propellant, and the individual threads are deposited on a deposit belt to form the fleece.
- An important quality feature of the nonwovens is their uniformity and their strength, the strength or the ratio of the strengths from the longitudinal direction to the transverse direction being essentially determined by the laying angle of the individual threads - laying direction in relation to the production direction.
- the separator fulfills the task of separating the filaments from the accelerating air and simultaneously spreading the bundle of threads. The spreading angle is also predetermined by this spread.
- curtain process In a further device for producing a nonwoven from continuous filaments, the so-called curtain process has already been used, in which the many exhaust pipes mentioned above are dispensed with and no spreading device (separators) are used either.
- the sheet of thread forming a flat forehand extends perpendicular to the direction of production, ie the preferred laying direction runs parallel to the direction of production.
- the higher speed of the filaments relative to the speed of the depositing belt leads to serpentine movements when the filaments are deposited. Individual filaments are then overlaid in certain areas.
- a nonwoven fabric produced with such a device has a preferred strength in the longitudinal direction, that is, in the production direction, but the strength values in the transverse direction are extremely poor.
- the invention has for its object to provide a device which allows the production of a nonwoven with a high degree of uniformity, and which allows to achieve predetermined strength and elongation values of the nonwoven in the desired directions.
- the invention achieves this aim in the device mentioned in the preamble of claim 1 by the features of the characterizing part of patent claim 1.
- the depositing angles can be set to any value, and a particular advantage is that such an adjustment is possible while the device is in operation.
- a fleece produced with the device according to the invention can have both isotropic properties and preferred longitudinal strengths. Preferred transverse strengths are also possible without impairing the uniformity of the fleece, depending on the choice of the depositing angle.
- the invention is also intended to create a multilayer nonwoven fabric made from continuous filaments, which has selectable strength values and a high degree of uniformity. This goal has been achieved the invention according to the features of claim 7.
- FIG. 1 shows a spinning station, designated as a whole by the reference number 10, which comprises two spinning beams 12 and 14 which are arranged at a distance from one another in the transport direction 30 (production direction). A melt is fed to the spinning plates 18 via melt lines 16.
- Each spinning plate 18 serves to distribute the melt over the production width, that is to say the width of a deposit belt 28.
- the spinning plates 18 are interchangeably attached in the bottom part of the spinning beams 12, 14.
- In the spinning plate 18 there is a variable number of holes called spinnerets through which the liquid spinning melt emerges from the spinning plate 18 as a sheet 50 in the manner of a curtain.
- the thread sheet 50 moves along a blowing wall 20 which forms a stretching zone 22 for stretching the thread sheet.
- the spinning station 10 further comprises, in each of the two spinning beams 12, 14, a thread take-off device 24 and a depositing device 26, by means of which the threads are spread to achieve a high degree of uniformity and are deposited on the depositing belt 28 moved in the transport direction 30 to form a fleece 52.
- the curtain method used here therefore works with a spreading device - comparable to the known separators - in order to achieve a specific direction in which the threads are deposited, namely a 90 ° direction, based on the spinning beam.
- the threads are thus oscillated back and forth up to 90 ° to the spinning beam.
- the deposit takes place first with the spinning beam 12, and a second layer is deposited on the first layer formed thereby in the other spinning beam 14, whereby a multi-layer fleece 52 is formed.
- FIG. 2 shows the top view in Fig. 2 it can be seen that the spinning beams 12, 14 from their parallel, dashed position out in the direction of arrows 56 and 58 are pivotable about their axes of rotation 34, the longitudinal axes 32 of the spinning beams 12, 14 forming an angle 54 here.
- the individual layers of the fleece 52 thus have the different storage directions or storage angles, which are predetermined by the spinning beams 12 and 14. These different storage directions are shown in Figs. 3-5.
- FIG. 3 shows the course of the deposit 36 of the one spinning beam 12, while FIG. 4 shows the course of the deposit 38 of the other spinning beam 14.
- the resulting storage image 40 in the multilayer nonwoven 52 which is created by superimposing the storage profiles 36 and 38, is shown in FIG. 5.
- the individual filing courses intersect, so that there is an overall cross filing with variable angles for the multi-layer fleece. If the intersecting deposition courses 36 and 38 form an angle of 90 ° at the deposition image 40 at the intersection points, an isotropic fleece 52 is obtained with the same strength values in all directions.
- FIG. 6 shows the spinning beam 12 in a plan view.
- the spinning beam 12 is - as well like the spinning beam 14 - arranged on a bogie 42 and held and guided along the circular guide rails 44 by means of the guide rollers 46.
- the guide rails 44 enable rotation of the spinning beam 12 about the central axis of rotation 34, so that different angles of rotation 48 can be realized.
- the guidance and mounting of the spinning beam 12 on the guide rails 44 is also illustrated in the perspective view according to FIG. 7, and it should be emphasized that the setting of different angles of rotation 48 is also possible during the operation of the entire spinning station 10. In practice, this represents a considerable advantage because it is not necessary to switch off and shut down the spinning station for setting new desired rotation angles 48 and thus for generating new storage images 40.
- the spinning station 10 can therefore be operated variably, because a cross deposit with variable angles can be achieved during the ongoing operation of the spinning station. A desired new nonwoven product can therefore be produced immediately during operation.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Herstellung eines Vlieses aus Endlosfäden gemäß dem Oberbegriff des Patentanspruchs 1, und außerdem befaßt sich die Erfindung mit einem aus Endlosfäden hergestellten mehrlagigem Vlies.The invention relates to a device for producing a nonwoven from continuous filaments according to the preamble of claim 1, and the invention also relates to a multilayer nonwoven made from continuous filaments.
Durch die DE-PS 17 85 158, GB-PS 12 82 176 und GB-PS 12 97 582 sind schon Vorrichtungen zur Herstellung eines Vlieses aus Endlosfäden bekannt. Dabei wird aus einer Schmelze und aus Spinndüsen eine Fadenschar mit Hilfe eines gasförmigen Treibmittels abgezogen, und die einzelnen Fäden werden auf einem Ablageband zur Bildung des Vlieses abgelegt.DE-PS 17 85 158, GB-
Ein bedeutendes Qualitätsmerkmal bei den Vliesen sind ihre Gleichmäßigkeit und ihre Festigkeit, wobei die Festigkeit bzw. die Verhältnisse der Festigkeiten von Längsrichtung zu Querrichtung im wesentlichen durch den Ablegewinkel der einzelnen Fäden - Ablegerichtung in Bezug auf die Produktionsrichtung - bestimmt wird.An important quality feature of the nonwovens is their uniformity and their strength, the strength or the ratio of the strengths from the longitudinal direction to the transverse direction being essentially determined by the laying angle of the individual threads - laying direction in relation to the production direction.
Üblich ist schon die Verwendung von Spinnbalken mit einer Vielzahl von einzelnen Abzugsrohren für die Fäden, wobei jedem Abzugsrohr ein Separator zugeordnet ist. Der Separator erfüllt die Aufgabe, die Filamente von der Beschleunigungsluft zu trennen und das Fadenbündel gleichzeitig zu spreizen. Durch diese Spreizung wird zugleich auch der Ablegewinkel vorgegeben.It is common to use spinning beams with a large number of individual draw-off tubes for the threads, a separator being assigned to each draw-off tube. The separator fulfills the task of separating the filaments from the accelerating air and simultaneously spreading the bundle of threads. The spreading angle is also predetermined by this spread.
Bei der Verwendung von Separatoren muß in der Praxis berücksichtigt werden, daß sich die einzelnen Separatoren wegen der austretenden Beschleunigungsluft gegenseitig stark beeinflussen. Deshalb gibt es hier nur eine einmalig zu wählende günstige Einstellung der Separatoren, durch die dann auch die Ablegerichtung zwangsläufig vorgegeben ist. Es besteht daher nur eine sehr eingeschränkte Möglichkeit, unterschiedliche Ablagewinkel zu realisieren.In practice, when using separators, it must be taken into account that the individual separators strongly influence one another because of the emerging accelerating air. That is why there is only a one-off, inexpensive setting of the separators, which inevitably also specifies the laying direction. There is therefore only a very limited possibility of different Realize storage angle.
Wenn man im übrigen die Winkelstellung der einzelnen Separatoren tatsächlich geringfügig verändern wollte, um unterschiedliche Ablagewinkel zu ermöglichen, müßte die gesamte Vorrichtung zunächst abgeschaltet werden, da solche Änderungen im laufenden Betrieb einer Anlage nicht möglich sind. Außerdem sind mit der Änderung der Ablagewinkel erhebliche Ausschußmengen des produzierten Vlieses verbunden.If one actually wanted to change the angular position of the individual separators slightly in order to enable different storage angles, the entire device would have to be switched off first, since such changes are not possible during the operation of a plant. In addition, considerable rejects of the nonwoven produced are associated with the change in the deposit angle.
Es ist auch schon vorgeschlagen worden, in Produktionsrichtung gesehen zwei Spinnbalken mit Separatoren im Abstand voneinander anzuordnen, wobei jedem Spinnbalken eine eigene Ablegerichtung der Filamente zugeordnet ist. Man kommt dann zu einer sogenannten Kreuzablage mit zwei jeweils vorgegebenen Ablagewinkeln.It has also been proposed to arrange two spinning beams with separators at a distance from one another, as seen in the production direction, each spinning beam being assigned its own filing direction. One then arrives at a so-called cross-rest with two predetermined storage angles.
Wie voranstehend erwähnt, beeinflussen sich die einzelnen Separatoren aber gegenseitig wegen der austretenden Beschleunigungsluft, so daß man nur mit einer einmalig zu wählenden günstigen Einstellungen der Separatoren arbeiten kann, wodurch dann die Ablegerichtung zwangsläufig vorbestimmt ist. Somit lassen sich bei dieser vorgeschlagenen Lösung mit zwei Spinnbalken nur begrenzte Ablegerichtungen bei der Kreuzablage realisieren. Im übrigen ist es auch hier bei einer gewünschten Veränderung der Ablegewinkel erforderlich, die gesamte Vorrichtung zunächst abzuschalten, was zu den voranstehend schon genannten Nachteilen führt.As mentioned above, however, the individual separators influence one another because of the emerging accelerating air, so that one can only work with one-time favorable settings of the separators, which then causes the laying direction is necessarily predetermined. Thus, with this proposed solution with two spinning beams, only limited laying directions can be realized with the cross-laying. Incidentally, it is also necessary here to switch off the entire device if a desired change in the placement angle, which leads to the disadvantages already mentioned above.
Je nach Verwendungszweck des Vlieses besteht in der Praxis aber ein Bedürfnis nach unterschiedlichen Festigkeitswerten in unterschiedlichen Richtungen, und diesem Bedürfnis kann mit der vorgeschlagenen Lösung mit zwei Spinnbalken nicht nachgekommen werden.Depending on the intended use of the fleece, there is a need in practice for different strength values in different directions, and this requirement cannot be met with the proposed solution with two spinning beams.
Bei einer weiteren Vorrichtung zur Herstellung eines Vlieses aus Endlosfäden ist auch schon das sogenannte Vorhangverfahren zur Anwendung gekommen, bei welchem auf die oben erwähnten vielen Abzugsrohre verzichtet und auch keine Spreizvorrichtung (Separatoren) verwenden werden. Die einen flächigen Vorhand bildende Fadenschar erstreckt sich senkrecht zur Produktionsrichtung, d.h., die bevorzugte Ablegerichtung läuft parallel zur Produktionsrichtung.In a further device for producing a nonwoven from continuous filaments, the so-called curtain process has already been used, in which the many exhaust pipes mentioned above are dispensed with and no spreading device (separators) are used either. The sheet of thread forming a flat forehand extends perpendicular to the direction of production, ie the preferred laying direction runs parallel to the direction of production.
Die hierbei in jedem Fall höhere Geschwindigkeit der Filamente relativ zur Geschwindigkeit des Ablegebandes führt zu schlangenförmigen Bewegungen bei der Ablage der Filamente. Dabei kommt es dann in bestimmten Bereichen zu Überlagerungen einzelner Filamente.The higher speed of the filaments relative to the speed of the depositing belt leads to serpentine movements when the filaments are deposited. Individual filaments are then overlaid in certain areas.
Ein mit einer solchen Vorrichtung hergestelltes Vlies besitzt zwar eine bevorzugte Festigkeit in Längsrichtung, also in Produktionsrichtung, allerdings sind die Festigkeitswerte in Querrichtung extrem schlecht.A nonwoven fabric produced with such a device has a preferred strength in the longitudinal direction, that is, in the production direction, but the strength values in the transverse direction are extremely poor.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zu schaffen, welche die Herstellung eines Vlieses mit einer hohen Gleichmäßigkeit erlaubt, und welche es gestattet, vorgegebene Festigkeits- und Dehnungswerte des Vlieses in gewünschten Richtungen zu realisieren.The invention has for its object to provide a device which allows the production of a nonwoven with a high degree of uniformity, and which allows to achieve predetermined strength and elongation values of the nonwoven in the desired directions.
Dieses Ziel erreicht die Erfindung bei der im Oberbegriff des Anspruchs 1 genannten Vorrichtung durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1.The invention achieves this aim in the device mentioned in the preamble of claim 1 by the features of the characterizing part of patent claim 1.
Durch die Verstellbarkeit mindestens eines Spinnbalkens lassen sich die Ablagewinkel auf beliebige Werte einstellen, und ein besonderer Vorteil besteht darin, daß eine solche Einstellung während des laufenden Betriebes der Vorrichtung möglich ist.Due to the adjustability of at least one spinning beam, the depositing angles can be set to any value, and a particular advantage is that such an adjustment is possible while the device is in operation.
Bevorzugt sind Ablagewinkel zwischen jeweils 0° bis 45° und entgegengesetzt, also von 0° bis -45°, so daß die Ablagerichtungen der Filamente des ersten Spinnbalkens und des zweiten Spinnbalkens untereinander einen Winkel von kleiner oder gleich 90° im Sinne einer variablen Kreuzablage bilden.Laying angles between 0 ° and 45 ° and opposite, that is from 0 ° to -45 °, are preferred, so that the filing directions of the filaments of the first spinning beam and the second spinning beam form an angle with one another of less than or equal to 90 ° in the sense of a variable cross-filing .
Ein mit der erfindungsgemäßen Vorrichtung hergestelltes Vlies kann sowohl isotrope Eigenschaften besitzen als auch bevorzugte Längsfestigkeiten. Es sind auch bevorzugte Querfestigkeiten ohne Beeinträchtigung der Vliesgleichmäßigkeit, je nach Wahl der Ablagewinkel, möglich.A fleece produced with the device according to the invention can have both isotropic properties and preferred longitudinal strengths. Preferred transverse strengths are also possible without impairing the uniformity of the fleece, depending on the choice of the depositing angle.
Durch die Erfindung soll ferner ein aus endlosfäden hergestelltes mehrlagiges Vlies geschaffen werden, welches wählbare Festigkeitswerte und eine hohe Gleichmäßigkeit besitzt. Dieses Ziel erreicht die Erfindung gemäß den Merkmalen des Patentanspruchs 7.The invention is also intended to create a multilayer nonwoven fabric made from continuous filaments, which has selectable strength values and a high degree of uniformity. This goal has been achieved the invention according to the features of claim 7.
Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen und der Beschreibung angegeben sowie der Zeichnung zu entnehmen.Expedient refinements and advantageous developments of the invention are specified in the subclaims and the description and can be found in the drawing.
Nachfolgend wird die Erfindung anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:
- Fig. 1
- eine schematische Seitenansicht einer Vorrichtung mit zwei Spinnbalken,
- Fig. 2
- eine Draufsicht der Vorrichtung gemäß Fig. 1,
- Fig. 3 - 5
- Darstellung zur Verdeutlichung unterschiedlicher Ablagewinkel,
- Fig. 6
- eine mehr detaillierte Draufsicht eines Spinnbalkens, und
- Fig. 7
- eine perspektivische Darstellung eines Spinnbalkens gemäß Fig. 6.
- Fig. 1
- 1 shows a schematic side view of a device with two spinning beams,
- Fig. 2
- 2 shows a top view of the device according to FIG. 1,
- 3 - 5
- Illustration to illustrate different placement angles,
- Fig. 6
- a more detailed Top view of a spinning beam, and
- Fig. 7
- 6 shows a perspective illustration of a spinning beam according to FIG. 6.
Fig. 1 zeigt eine als Ganzes mit der Bezugsziffer 10 bezeichnete Spinnstation, die zwei in Transportrichtung 30 (Produktionsrichtung) im Abstand voneinander angeordnete Spinnbalken 12 und 14 umfaßt. Über Schmelzleitungen 16 wird eine Schmelze zu den Spinnplatten 18 geführt.1 shows a spinning station, designated as a whole by the
Jede Spinnplatte 18 dient der Verteilung der Schmelze über die Produktionsbreite, also der Breite eines Ablagebandes 28. Die Spinnplatten 18 sind im untersten Teil der Spinnbalken 12, 14 auswechselbar angebracht. In der Spinnplatte 18 befindet sich eine varibale Anzahl von als Spinndüse bezeichneten Löchern, durch die die flüssige Spinnschmelze aus der Spinnplatte 18 als Fadenschar 50 nach Art eines Vorhangs austritt. Dabei bewegt sich die Fadenschar 50 längs einer Blaswand 20, die eine Verstreckungszone 22 zum Verstrecken der Fadenschar bildet.Each
Die Spinnstation 10 umfaßt ferner bei den beiden Spinnbalken 12, 14 jeweils eine Fadenabzugsvorrichtung 24 und eine Ablegevorrichtung 26, durch welche die Fäden zur Erzielung einer hohen Gleichmäßigkeit gespreizt und auf dem in Transportrichtung 30 bewegten Ablageband 28 zur Bildung eines Vlieses 52 abgelegt werden.The
Das hier verwendete Vorhangverfahren arbeitet also mit einer Spreizvorrichtung - vergleichbar den bekannten Separatoren - um eine bestimmte Ablegerichtung der Fäden zu erzielen, nämlich eine 90°-Richtung, bezogen auf den Spinnbalken. Die Fäden werden also bis 90° zum Spinnbalken oszillierend hin- und herbewegt.The curtain method used here therefore works with a spreading device - comparable to the known separators - in order to achieve a specific direction in which the threads are deposited, namely a 90 ° direction, based on the spinning beam. The threads are thus oscillated back and forth up to 90 ° to the spinning beam.
Wie in Fig. 1 zu erkennen ist, erfolgt die Ablage zunächst bei dem Spinnbalken 12, und auf die dadurch gebildete erste Schicht wird beim anderen Spinnbalken 14 eine zweite Schicht abgelegt, wodurch ein mehrlagiges Vlies 52 entsteht.As can be seen in FIG. 1, the deposit takes place first with the
In der Draufsicht in Fig. 2 ist zu erkennen, daß die Spinnbalken 12, 14 aus ihrer parallel zueinander verlaufenden gestrichelt gezeichneten Lage heraus in Richtung der Pfeile 56 und 58 um ihre Drehachsen 34 verschwenkbar sind, wobei die Längsachsen 32 der Spinnbalken 12, 14 hier einen Winkel 54 bilden. Die einzelnen Lagen des Vlieses 52 besitzen also die durch die Spinnbalken 12 und 14 vorgegebenen unterschiedlichen Ablagerichtungen bzw. Ablagewinkel. Diese unterschiedlichen Ablagerichtungen sind in Fig. 3 - 5 dargestellt. Fig. 3 zeigt den Ablageverlauf 36 des einen Spinnbalkens 12, während Fig. 4 den Ablageverlauf 38 des anderen Spinnbalkens 14 wiedergibt. Das daraus bei dem mehrlagigen Vlies 52 sich ergebende Ablagebild 40, welches durch Überlagerung der Ablageverläufe 36 und 38 entsteht, ist in Fig. 5 dargestellt. Wie man erkennen kann, kreuzen sich die einzelnen Ablageverläufe, so daß sich für das mehrlagige Vlies insgesamt eine Kreuzablage mit variablen Winkeln ergibt. Wenn die sich kreuzenden Ablageverläufe 36 und 38 bei dem Ablagebild 40 an den Kreuzungsstellen einen Winkel von 90° bilden, erhält man ein isotropes Vlies 52 mit in allen Richtungen gleichen Festigkeitswerten.In the top view in Fig. 2 it can be seen that the
Der nähere Teilaufbau einer Spinnstation 10 ergibt sich aus Fig. 6, welche den Spinnbalken 12 in einer Draufsicht zeigt. Der Spinnbalken 12 ist - ebenso wie der Spinnbalken 14 - auf einem Drehgestell 42 angeordnet und mittels der Führungsrollen 46 längs kreisförmiger Führungsschienen 44 gehalten und geführt. Die Führungsschienen 44 ermöglichen eine Drehung des Spinnbalkens 12 um die zentrale Drehachse 34, so daß sich unterschiedliche Drehwinkel 48 realisieren lassen. Durch entsprechende Ausrichtung der beiden Spinnbalken 12 und 14 ist es also möglich, unterschiedliche Ablageverläufe 36 und 38 (vgl. Fig. 3 und 4) zu realisieren. Damit besteht die Möglichkeit, dem hergestellten Vlies 52 die der späteren Anwendung entsprechenden Festigkeitswerte zu geben.The closer partial structure of a spinning
Die Führung und Halterung des Spinnbalkens 12 auf den Führungsschienen 44 ist auch in der perspektivischen Darstellung gemäß Fig. 7 verdeutlicht, und es ist hervorzuheben, daß die Einstellung unterschiedlicher Drehwinkel 48 auch während des laufenden Betriebes der gesamten Spinnstation 10 möglich ist. Dies stellt in der Praxis einen erheblichen Vorteil dar, weil darauf verzichtet werden kann, die Spinnstation für die Einstellung neuer gewünschter Drehwinkel 48 und damit für die Erzeugung neuer Ablagebilder 40 abzuschalten und stillzulegen.The guidance and mounting of the
Insgesamt läßt sich die Spinnstation 10 demnach variabel betreiben, weil während des laufenden Betriebes der Spinnstation eine Kreuzablage mit variablen Winkeln erzielt werden kann. Man kann deshalb während des laufenden Betriebes sofort ein gewünschtes neues Vlies-Produkt erzeugen.Overall, the spinning
Claims (7)
- Device for making a non-woven from continuous filaments, which are pulled under the influence of a gaseous propellant at high speed as a filament bundle (50) from spinning nozzles of spinning plates (18) of a spinning beam (12, 14) and, after passing through a filament pulling device (24), are laid by means of a laying device (26), constructed as a spreading device, on a laying belt (28) moving in the production direction (30), for the purpose of forming the non-woven (52), wherein at least two spinning beams (12, 14) are provided spaced apart in the production direction (30), characterized in that at least one spinning beam (12, 14) together with laying and spreading device (24), is arranged to be rotatable (56, 58) in a plane parallel to the laying belt.
- Device according to Claim 1, characterized in that the spinning beam or beams (12, 14) are rotatable through an angle of 45°.
- Device according to Claim 2, characterized in that the direction of rotation of the spinning beams (12, 14) is so chosen that their longitudinal axes (32), in the relevant limiting positions, make a maximum angle of 90°.
- Device according to one of the preceding Claims 1 to 3, characterized in that the spinning beams (12, 14) are journalled at their outer ends on guide rails (44) of circular form.
- Device according to one of the preceding Claims 1 to 4, characterized in that the spinning beams (12, 14) are rotatable about a central axis (34) situated at their centre.
- Device according to one of the preceding Claims 1 to 5, characterized in that the spinning beams (12, 14) can be arrested in desired rotated or angular positions.
- Multilayer non-woven made from continuous filaments by a device according to Claim 1, characterized in that the directions of laying of the filaments of the individual layers make an angle with one another less than or equal to 90° in the sense of a variable criss-cross laying.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3818033 | 1988-05-27 | ||
| DE3818033 | 1988-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0343331A1 EP0343331A1 (en) | 1989-11-29 |
| EP0343331B1 true EP0343331B1 (en) | 1994-10-26 |
Family
ID=6355247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89104691A Expired - Lifetime EP0343331B1 (en) | 1988-05-27 | 1989-03-16 | Apparatus for producing a mat of continuous filaments and the manufacturing of multilayer mat with continuous filaments |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4999080A (en) |
| EP (1) | EP0343331B1 (en) |
| JP (1) | JPH0226977A (en) |
| AT (1) | ATE113326T1 (en) |
| CA (1) | CA1325318C (en) |
| DE (1) | DE58908550D1 (en) |
| ES (1) | ES2065346T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11377760B2 (en) | 2018-12-31 | 2022-07-05 | Soft N.W. S.P.A. | High productivity and flexibility plant of the spun bonding type for the production of a non-woven web |
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| EP0418493A1 (en) * | 1989-07-28 | 1991-03-27 | Fiberweb North America, Inc. | A nonwoven composite fabric combined by hydroentangling and a method of manufacturing the same |
| US5582907A (en) * | 1994-07-28 | 1996-12-10 | Pall Corporation | Melt-blown fibrous web |
| EP0772484B1 (en) * | 1994-07-28 | 2008-02-27 | Pall Corporation | Fibrous web and process of preparing same |
| US5591335A (en) * | 1995-05-02 | 1997-01-07 | Memtec America Corporation | Filter cartridges having nonwoven melt blown filtration media with integral co-located support and filtration |
| DE19630523C1 (en) * | 1996-07-29 | 1998-03-12 | Freudenberg Carl Fa | Spunbonded nonwoven and device for its production |
| CN1077930C (en) * | 1998-04-03 | 2002-01-16 | 正祺纤维有限公司 | Filament non-woven fabric method and cross apparatus thereof |
| FR2846013B1 (en) * | 2002-10-18 | 2005-05-27 | Rieter Perfojet | NON-WOVEN FABRIC OF SMALL VOLUMIC MASS AND METHOD AND PRODUCTION PLANT AND APPLICATIONS THEREOF |
| US6989125B2 (en) * | 2002-11-21 | 2006-01-24 | Kimberly-Clark Worldwide, Inc. | Process of making a nonwoven web |
| US20040102123A1 (en) * | 2002-11-21 | 2004-05-27 | Bowen Uyles Woodrow | High strength uniformity nonwoven laminate and process therefor |
| US7137182B2 (en) * | 2002-11-22 | 2006-11-21 | The Boeing Company | Parallel configuration composite material fabricator |
| EP1424421A1 (en) * | 2002-11-27 | 2004-06-02 | Polyfelt Gesellschaft m.b.H. | Process for making geotextiles with defined isotropy made of spunbond fibers |
| TWI245085B (en) * | 2004-07-29 | 2005-12-11 | Taiwan Textile Res Inst | Apparatus and method for manufacturing polymeric fibrils |
| JP4787842B2 (en) * | 2004-12-10 | 2011-10-05 | フレゼニウス・ヘモケア・イタリア・ソシエタ・ア・レスポンサビリタ・リミタータ | Especially porous web for filtering biological fluids |
| ES2268959B1 (en) * | 2005-03-11 | 2008-02-01 | Tesalca 99, S.A. | DEVICE FOR MANUFACTURING BANDS OF NON-WOVEN MATERIAL. |
| CZ299537B6 (en) * | 2005-06-07 | 2008-08-27 | Elmarco, S. R. O. | Method of and apparatus for producing nanofibers from polymeric solution using electrostatic spinning |
| DE102005054726A1 (en) * | 2005-08-02 | 2007-02-15 | Carl Freudenberg Kg | Nonwovens and process for their preparation |
| US20080315733A1 (en) * | 2007-06-22 | 2008-12-25 | Terry Bosch | Modular Monitor Support Apparatus |
| KR20150016545A (en) * | 2012-06-01 | 2015-02-12 | 닛폰노즐 가부시키가이샤 | Nonwoven fabric manufacturing device and monwoven fabric manufacturing method |
| JP5626301B2 (en) * | 2012-09-21 | 2014-11-19 | 日本ノズル株式会社 | Nonwoven fabric manufacturing equipment |
| JP5626409B1 (en) * | 2013-06-03 | 2014-11-19 | 日本ノズル株式会社 | Nonwoven fabric manufacturing equipment |
| JP2016160558A (en) * | 2015-03-03 | 2016-09-05 | 日本ノズル株式会社 | Nonwoven fabric production apparatus, nonwoven fabric produced by the same, and nonwoven fabric production method |
| CN107245812B (en) * | 2017-08-01 | 2024-01-16 | 杭州友凯船艇有限公司 | Non-woven fabric manufacturing machine |
| CN111304832A (en) * | 2019-06-04 | 2020-06-19 | 武汉永强化纤有限公司 | Spunbonded nonwoven production line with adjustable spinning box angle |
| JP7283350B2 (en) * | 2019-10-29 | 2023-05-30 | 王子ホールディングス株式会社 | NONWOVEN FABRIC MANUFACTURING APPARATUS AND NONWOVEN FABRIC MAKING METHOD |
| KR102245578B1 (en) * | 2020-07-28 | 2021-04-28 | 주식회사 디씨아이인더스트리 | Manufacturing apparatus for melt blown filter |
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| NL159734C (en) * | 1970-03-26 | |||
| DE2053918B2 (en) * | 1970-11-03 | 1976-09-30 | Basf Farben + Fasern Ag, 2000 Hamburg | METHOD AND DEVICE FOR THE PRODUCTION OF CURLED FEDES FROM SYNTHETIC HIGH POLYMER |
| DE2163795A1 (en) * | 1971-12-22 | 1973-07-12 | Metallgesellschaft Ag | Uniform fleece mfr - by laying endless threads pref thermoplastic ones, onto a moving base |
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| DE3542660A1 (en) * | 1985-12-03 | 1987-06-04 | Freudenberg Carl Fa | METHOD FOR PRODUCING SPINNING FLEECES WITH INCREASED EVENNESS |
| JPS62170570A (en) * | 1986-01-23 | 1987-07-27 | 東レ株式会社 | Method and apparatus for producing nonwoven web |
-
1989
- 1989-03-16 DE DE58908550T patent/DE58908550D1/en not_active Expired - Fee Related
- 1989-03-16 ES ES89104691T patent/ES2065346T3/en not_active Expired - Lifetime
- 1989-03-16 EP EP89104691A patent/EP0343331B1/en not_active Expired - Lifetime
- 1989-03-16 AT AT89104691T patent/ATE113326T1/en not_active IP Right Cessation
- 1989-05-26 US US07/357,731 patent/US4999080A/en not_active Expired - Fee Related
- 1989-05-26 JP JP1134471A patent/JPH0226977A/en active Pending
- 1989-05-26 CA CA000600898A patent/CA1325318C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11377760B2 (en) | 2018-12-31 | 2022-07-05 | Soft N.W. S.P.A. | High productivity and flexibility plant of the spun bonding type for the production of a non-woven web |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2065346T3 (en) | 1995-02-16 |
| DE58908550D1 (en) | 1994-12-01 |
| JPH0226977A (en) | 1990-01-29 |
| EP0343331A1 (en) | 1989-11-29 |
| CA1325318C (en) | 1993-12-21 |
| ATE113326T1 (en) | 1994-11-15 |
| US4999080A (en) | 1991-03-12 |
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