EP2907909A1 - Assembly for the continuous production of a woven material - Google Patents

Abstract

Plant for the continuous production of a spunbonded web of filaments, comprising at least one spinnerette, a cooling chamber, a drawing unit and a depositing device for depositing the filaments to the spunbonded web. At least one filament guide device with a plurality of filament guide columns open towards the drawing unit is provided between the drawing unit and the filing unit. The filament guide device or at least one guide component of the filament guide device is movable with the proviso that the Filamentführungsspalte or their Verstreckeinheitsseitigen openings are displaced, are displaced transversely to the conveying direction of the spunbonded nonwoven web, so that the guided along or through the Filamentführungsspalte filaments or filament bundles when depositing on the depositing device a transverse orientation with respect to the conveying direction of the spunbonded web is imposed.

Description

The invention relates to a system for the continuous production of a spunbonded web of aerodynamically stretched filaments, preferably of thermoplastic material.

Systems of the aforementioned type are basically known from practice. It has proven useful to spin the filaments by means of a spinning device, to cool, to stretch and then store after a widening of the filament bundle thus produced on a usually configured as an endless Ablagesiebband storage device for spunbonded web. The deposited on the Ablagesiebband spunbonded web is subjected in the known from practice plants further processing steps. Many spunbonded nonwovens produced with the known measures leave something to be desired, in particular with regard to their mechanical properties, such as tensile and tear propagation strengths, isotropy, dimensional stability, etc. This is attributed in particular to the fact that the filaments orient themselves during deposition in the conveying direction of the spunbonded nonwoven web (machine direction MD) rather than transversely to the conveying direction (transverse to the machine direction CD). As a result, the filament deposit in the machine direction undesirably has different properties than transversely to the machine direction, for example having a lower strength transverse to the machine direction than in the machine direction. Other mechanical properties such as the dimensional stability of the fleece, the tear propagation resistance and others are also affected. Such a non-isotropic deposit also results when using a diffuser or when using diffusers in the context of a laying unit between drawing unit and depositing unit. Certain needling operations to solidify the nonwoven web may exacerbate these adverse effects. However, particularly in the case of nonwoven products used industrially, isotropic properties, ie, identical properties, in particular equal nonwoven strengths, both in the machine direction (MD) and also across the board Machine direction (CD) desirable. In order to achieve better isotropic results, special needling techniques have been used in the past. Thus, a Vernadelungseinrichtung was used with so-called Hyperpunch variant, wherein in addition to a vertical stroke of the needle board also takes a horizontal stroke. The result obtained but also left to be desired and also such needling devices are complex and costly. The known measures are therefore in need of improvement.

Accordingly, the invention is based on the technical problem of providing a system of the type mentioned, with the isotropic properties of the nonwoven web or the spunbonded nonwoven in the machine direction (MD) and transversely to the machine direction (CD) can be achieved in a simple, cost-effective and functionally reliable manner. In particular, the same or essentially the same strength properties in the machine direction (MD) and transversely to the machine direction (CD) should be achieved. The invention is further based on the technical problem of specifying a corresponding product or a corresponding spunbonded nonwoven web.

To solve the technical problem, the invention teaches a system for the continuous production of a spunbonded web (S) of filaments, in particular of aerodynamically stretched filaments - preferably of thermoplastic material - with a Spinnerette, a cooling chamber for cooling the filaments, a drawing unit and a storage device for storage the filaments to the spunbonded web, wherein between the drawing unit and the depositing device at least one filament guide device is provided with a plurality of filament guide columns open towards the drawing unit, the filament guide device or at least one guide component of the filament guide device with the proviso is movable, that the Filamentführungsspalte or their stretch unit side openings are displaced, in particular transversely to the conveying direction of the spunbonded web are shifted, so that the filaments or filament bundles guided along or through the Filamentführungsspalte when depositing on the storage device with respect to an (additional) the conveying direction of the spunbonded web is imposed. It is within the scope of the invention that the filaments are continuous filaments produced by a spunbond process.

The conveying direction or conveying direction of the spunbonded web means in particular the conveying direction of the depositing device. As storage device is preferably used at least one Ablagesiebband. It is within the scope of the invention that the filaments are first of all produced in the form of a thread curtain or filament curtain which extends transversely to the conveying direction or is substantially continuous. It is furthermore within the scope of the invention that the drawing unit has a continuous drawing gap extending transversely to the conveying direction. Conveniently, this drawing gap extends at least over the majority of the width of the deposited spunbonded nonwoven web transversely to the conveying direction. With the aid of the filament guiding device according to the invention or with its filament guide columns, filaments or filament bundles are picked out of the continuous thread curtain and influenced or deflected according to the invention and deposited on the depositing device.

Within the scope of the invention, monocomponent filaments and / or multicomponent filaments or bicomponent filaments can be used as filaments. Preferably, the filaments essentially consist of a thermoplastic, for example a polyolefin, preferably polyethylene and / or polypropylene or a polyester or of a polyamide. In one embodiment, the filaments have a titer of at least 1 denier, preferably at least 1.5 denier. Empfohlenermaßen, the spunbonded web has a basis weight of at least 20 g / m ² , preferably of at least 40 g / m ² according to an embodiment of, for example, about 50 g / m ² .

It is within the scope of the invention that the cooling air supplied in the cooling chamber can be supplied from an air supply cabin. According to one embodiment of the invention, the air supply cabin at least two or two vertically stacked cabin sections. From these cabin sections of the cooling chamber cooling air of different temperature can be supplied. - According to a particularly preferred embodiment, which has special significance within the scope of the invention, forms an aggregate of the cooling chamber and the drawing unit - apart from the air supply in the cooling chamber - a closed system. In principle, however, it is also possible to work with a so-called open system. - It is recommended that the storage device of the system is designed as Ablagesiebband or as an endless circulating filing belt. The filaments are dispensed from the spinnerette and preferably guided along a vertical or substantially vertical flow path from the spinnerette to the depositor or sizer belt, respectively. The vertical or substantially vertical filament curtain / thread curtain undergoes a deflection in the filament guide device according to the invention.

It is within the scope of the invention that the filaments emerging from the drawing unit are divided into filament bundles by means of the filament guiding device or by means of the filament guiding column of the filament guiding device. Furthermore, it is within the scope of the invention that these filament bundles are passed through the filament guide gaps. It recommends in that the filament guide device or at least one guide component of the filament guide device has more than two, preferably more than three, and particularly preferably more than four filament guide gaps or a corresponding number of stretch unit side openings of the filament guide gaps. Advantageously, side walls for the filament guide gaps are connected to the filament guide device or at least to at least one guide component of the filament guide device. With the filament guiding device according to the invention or with its filament guide gaps, in particular, a deflection of the filaments or filament bundles guided through the filament guide gaps is achieved transversely to the conveying direction of the spunbonded nonwoven web. For this purpose, the filament guide gaps are displaced and displaced in particular transversely to the conveying direction of the spunbonded web. It is within the scope of the invention that the filament guide device or at least one guide component and according to an embodiment a plurality of guide components of the filament guide device is / are moved for the displacement of the Filamentführungsspalte or for the displacement of their stretch unit side openings. The movement of the filament guide device or its guide component (s) can be carried out continuously and / or intermittently. Preferably, the number or the frequency of the displacements of the filament guide gaps or their stretch-unit-side openings is adjustable. The movements of the filament guiding device or at least one guiding component of the filament guiding device can be carried out in the form of rotational movements and / or in the form of translational movements. These movement possibilities will be explained below with reference to exemplary embodiments. According to a proven embodiment of the invention, the filament guide device or is at least one guide component of the filament guide device in the horizontal direction and / or vertical direction between the stretching unit and the storage device adjustable or displaceable.

It is within the scope of the invention that the filament guide device or at least one guide component of the filament guide device is periodically movable. It is also within the scope of the invention that then also the filament guide gaps or their stretch unit side openings are periodically movable or displaced. According to a preferred embodiment, the movement of the filament guide device / at least one guide component of the filament guide device or the displacement of the filament guide gaps takes place in the form of a vibration, preferably in the form of a symmetrical oscillation. Expediently, the filament guide gaps or their stretching unit-side openings in each case oscillate about a neutral position (middle position), in which neutral position the filaments or filament bundles are expediently deflectable or substantially deflection-free to the depositing device. Preferably, the frequency of the displacement of the Filamentführungsspalte is adjustable. The frequency of the oscillation or displacement of the filament guide gaps is expediently 5 to 40 Hz, preferably 10 to 30 Hz and particularly preferably 15 to 20 Hz.

It is recommended that the filament guide device or at least one guide component of the filament guide device 100 mm to 800, preferably 200 mm to 500 - expediently vertically - is arranged below the drawing unit. It is within the scope of the invention that the filament guide gaps of a filament guide device or a guide component of the filament guide device at the same vertical height bwz. are arranged substantially at the same vertical height. It is recommended that the filament guide gaps be included arranged side by side transversely to the flow direction of the filaments. According to a preferred embodiment, a filament guide gap has a width of 30 to 200 mm and preferably a width of 80 to 150 mm.

According to a preferred embodiment of the invention, the at least one filament guide device is designed with the proviso that filaments or filament bundles are deflected from the edge region or from the edge regions of the filament curtain in the direction of the center of the filament curtain. For this purpose, a special guide component of the filament guide device can be provided, or the filament guide device or at least one guide component of the filament guide device is specially designed in its edge region or in its edge regions. In this way it is achieved that filaments or filament bundles, which would be deposited over the desired spunbonded web edge, are deflected in the direction of the spunbonded web center, so that a homogeneous filament deposit is achieved up to the desired spunbonded edge. As a result, the basis weight of the spunbonded nonwoven web can be kept constant.

It has been proven that the filament guide device has at least one rotatable or rotating shaft, wherein at least one flat disc is connected to this shaft and wherein this at least one disc forms the side wall of at least one filament guide gap. Then at least one guide component of the filament guide device is designed as a rotatable or rotating shaft. According to one embodiment, the at least one shaft can thereby rotate continuously in one direction-clockwise or counterclockwise. According to another embodiment, the at least one shaft performs a pendulum rotation. In this case, the at least one shaft is first rotated by a certain angle section in a direction of rotation and then - expediently via a neutral position - turned over an angular section in the other direction of rotation and so on. Both embodiments will be explained in more detail below concrete embodiments.

A preferred embodiment of the invention is characterized in that the filament guide device has at least one rotatable or rotating shaft arranged transversely to the conveying direction of the spunbonded web, wherein a plurality of disks is connected to the shaft and wherein the filament guide gaps are formed between these disks. Empfohlenermaßen from different points of the outer periphery and / or the outer region of a disc to the axis of rotation of the shaft extending perpendicular to different points of intersection with the axis of rotation of the shaft. In this case, the outer area of the pane means, in particular, the outer third of the pane with respect to the radius of the pane. It is within the scope of the invention that the at least one shaft arranged transversely to the conveying direction rotates continuously in one direction of rotation-clockwise or counterclockwise. The at least one rotating shaft forms a guiding component of the filament guiding device. According to one embodiment variant, the at least one shaft oriented transversely to the conveying direction can be arranged perpendicularly or essentially perpendicular to the conveying direction of the spunbonded nonwoven web. It is within the scope of the invention that the at least one shaft extends along the drawing shaft or is arranged parallel / substantially parallel to the drawing shaft. The at least one shaft can be driven in rotation by a drive device according to a variant embodiment. However, it is also within the scope of the invention that the rotatable shaft is additionally or alternatively driven by the process air flowing in the direction of the flow path of the filaments. Conveniently, the rotational speed of the rotating shaft is adjustable. Empfohlenermaßen are the at least a shaft connected disks in the form of rigid disks rigidly connected to the shaft. Preferably, the discs run around the circumference of the associated shaft. According to a proven embodiment, the axis of rotation of the shaft is located in the center of the discs or approximately at the center of the discs. The discs are preferably made round, in particular oval or circular. It is within the scope of the invention that the disc surface of the discs is arranged in each case transversely to the shaft or transversely to the axis of rotation of the shaft. According to one embodiment of the invention, the disc surface of the discs is planar. The disk surface can also be arched or curved.

It is within the scope of the invention that the disk surfaces of the disks connected to the at least one rotating shaft arranged transversely to the conveying direction form the side walls of the filament guide gaps. As already explained above, it is further within the scope of the invention that the perpendiculars extending from different points of the outer circumference and / or the outer region of the disks to the axis of rotation of the shaft have different points of intersection with the axis of rotation of the shaft. Appropriately, a plurality of such different imaginary points of intersection is realized. A very particularly preferred embodiment of the invention is characterized in that at least a part of the discs connected to a rotating shaft arranged transversely to the conveying direction or the majority of the disc surfaces of these discs is arranged obliquely or inclined to the axis of rotation of the shaft. Preferably, all disks connected to such a rotating shaft are oriented obliquely or inclined to the axis of rotation. Incidentally, the majority of the disk surface means more than 50%, preferably more than 60% and particularly preferably more than 75% of the disk surface. Conveniently, the obliquely or inclined arranged discs are flat and round. It is recommended according to Embodiment, the entire or substantially the entire disc surface of the discs inclined to the axis of rotation of the shaft oriented. It is within the scope of the invention that the angle between a disc and the axis of rotation of the shaft is not equal to 90 ° and is expediently between 10 and 70 °, preferably between 20 and 60 ° and particularly preferably between 20 and 40 °. Preferably, at least a part of the disks is arranged parallel to one another or arranged substantially parallel to one another, and particularly preferably all disks connected to a shaft are arranged parallel or substantially parallel to one another. It is recommended that the distance between two disks or the distance between the connection regions of the two disks to the shaft is 30 to 200 mm, preferably 50 to 150 mm.

It is within the scope of the invention that the filaments of the emerging from the stretching unit filament curtain are passed through the formed between the discs of the shaft or waves Filamentführungsspalte and that thereby the filament curtain is divided into filament bundles. By rotation of the at least one shaft arranged transversely to the conveying direction, the stretching unit-side openings of the filament guide gaps formed between the disks are displaced, so that the filament bundles guided between the inclined disks are deflected transversely to the conveying direction of the spunbonded web and, in particular in obliquely arranged inclined disks In this respect, an additional transverse orientation for the filing on the filing device is imposed on them. During the rotation of the shaft, the filament guide gaps formed between the disks form as it were oscillating flow channels for the filaments or filament bundles, which are preferably oscillated or deflected once with each revolution of the shaft (center-right-middle-left-middle). Obtained in this way, as it were a vane system in which the Penetration points of the discs in the filament curtain over the length of the shaft or the waves are not stationary, but laterally oscillate. In this way, different filaments or filament bundles are repeatedly taken out of the filament curtain from the wafers or from the filament guide gaps. As a result, an effective deflection of the filaments or filament bundles and thus an additional transverse orientation of the filaments is achieved during storage. Part of the filaments comes into contact with the discs and is thereby deflected. Another part of the filaments is carried without contact with the discs in the diverted process air stream and deflected in this way. It has already been stated above that it is within the scope of the invention that the at least one shaft can rotate in the direction of flow of the filaments or can rotate against the flow direction of the filaments. Furthermore, it is within the scope of the invention that the rotational speed or the rotational speed of the shaft is adjustable. According to the recommended embodiment, the rotational speed of the shaft is in a range of 200 to 2,000 revolutions / min. and preferably in a range of 500 to 1,500 revolutions / min. Appropriately, the speed of the shaft is variable within these ranges. The shaft can, for example, a speed of 1,000 to 1,200 revolutions / min. exhibit. Conveniently, the peripheral speed of the at least one shaft is selected as a function of the filament speed / yarn speed of the flowing filaments. The peripheral speed of the at least one shaft should be less than the filament speed in order to avoid winding the filaments or filament bundles on the shaft. According to a particularly preferred embodiment, at least one deflection of the filaments transversely to the conveying direction takes place per revolution of the at least one shaft. In principle, in particular in the case of curved or curved disks or disk surfaces, it is also possible for several deflections of the filaments or filament bundles per revolution of a shaft occur. It is within the scope of the invention that by adjusting the speed of a shaft, the number or frequency of the deflections of the filaments or filament bundles is adjustable. By adjusting the speed of the shaft, the number of displacements of the Filamentführungsspalte or of their stretch unit side openings is adjustable and thus also the number / frequency of the deflections of the filaments / filament bundles.

It is within the scope of the invention that the at least one rotating shaft arranged transversely to the conveying direction of the spunbonded web is adjustable or displaceable in the horizontal direction and / or in the vertical direction. In this way, the effect of the transverse orientation can be further influenced or controlled. Furthermore, it is within the scope of the invention that the number and / or the distance and / or the angle of inclination and / or the diameter of the disks connected to the at least one rotating shaft arranged transversely to the conveying direction differ from the center of the shaft in the edge regions of the shaft can be. In this case, the edge region of the shaft means, in particular, an edge region which corresponds to one-eighth to one-quarter the length of the shaft.

Above, at least one arranged transversely to the conveying direction rotatable or rotating shaft with connected discs was mentioned. According to one embodiment of the invention, a plurality of such waves between stretching unit and storage device may be provided. In this case, the embodiments / variants described above can be implemented individually, partly in combination or in combination with each of these waves. Embodiments of embodiments with multiple shafts will be explained in more detail below.

A particularly preferred embodiment of the invention is characterized in that only one arranged transversely to the conveying direction rotatable / rotating shaft with attached discs between the drawing unit and the storage device is provided. Expediently, the axis of rotation of this one shaft is offset relative to the vertical direction of the filament curtain emerging from the drawing unit and arranged with the proviso that the filaments or filament bundles are guided through the filament guide gaps formed between the disks of the shaft. These filament guide columns of the shaft are then preferably designed to be open towards the outside. The shaft can rotate clockwise or counterclockwise. It is within the scope of the invention that per revolution of this wave, a deflection of the filaments or filament bundles takes place.

According to a further embodiment of the invention, the filament guiding device has at least two rotatable or rotating shafts arranged transversely to the conveying direction of the spunbonded nonwoven web, with a plurality of wafers being connected to each of these shafts. In this embodiment, therefore, at least two or two shafts form at least two or two guide components of the filament guide device. The two shafts can rotate in the same direction of rotation or in the opposite direction of rotation. The rotation of each of the two shafts can be clockwise or counterclockwise. It is within the scope of the invention that the filament guiding device can be displaced or displaced from the at least two shafts in the horizontal and / or vertical direction between the stretching unit and the depositing device. According to one embodiment variant, the phase angle of the rotary drive of one shaft can be shifted to the phase angle of the rotary drive of the other shaft, for example by 90 ° or by 270 °. By appropriate adjustment of Phase angle can be achieved in particular that the two waves deflect the filaments or filament bundles in the same transverse direction or in opposite transverse directions. It is within the scope of the invention that the at least two waves of the filament guide device have the same or a different rotational speed. In principle, a plurality of pairs, each with two shafts, can be arranged between the stretching unit and the depositing device.

According to a preferred embodiment of the invention, the filament guiding device has two shafts which are arranged at the same vertical height or at substantially the same vertical height between the drawing unit and the depositing device. It is within the scope of the invention that the two axes of rotation of the shafts are arranged in a horizontal plane or substantially in a horizontal plane.

According to an embodiment variant of the invention, in the embodiment described above, the disks of one shaft engage in interpane spaces of the other shaft and vice versa. The two waves mesh so to speak with each other. It is within the scope of the invention that in each case one disc of a shaft and a disc of the other shaft form the side walls of a filament guide gap. Conveniently, the filaments or filament bundles are passed through this Filamentführungsspalte and deflected by means of these Filamentführungsspalte in the transverse direction. - According to another embodiment of the invention, the two arranged at the same vertical height waves or arranged substantially at the same vertical height waves at such a distance from each other that a mutual engagement of the discs of the waves does not take place. The discs of the two waves are then as it were disengaged. The distance between the Rotary axes of the two waves be dimensioned so that just no intervention of the discs takes place and thus in a projection, the distance between the outer edges of the discs is low or very low. In the embodiments with at least two shafts arranged at the same vertical height or substantially at the same vertical height, the filaments or filament bundles coming out of the drawing shaft are expediently guided centrally or substantially centrally between the two axes of rotation of the shafts.

Another embodiment of the invention is characterized in that at least two shafts - in particular two shafts - are arranged at different vertical heights. It is within the scope of the invention that the axes of rotation of the shafts or of the two shafts are arranged offset from one another in the vertical direction, in particular on opposite sides of the emerging from the stretching unit filament curtain are arranged. In this embodiment of the invention, the axes of rotation of the at least two shafts are arranged in different horizontal planes. The two axes of rotation of the waves arranged at different heights can have the same distance to the filament curtain or else have a different distance from the filament curtain. According to one embodiment, one of the two shafts-in particular the lower one of the two shafts with regard to the direction of flow of the filaments-may have a different wheel arrangement than the other shaft. Thus, discs may be provided in the edge regions of the lower shaft, while in the central region of this wave, no or only a few discs are present. In this way, the filing of the filaments can be manipulated or improved at the edge of the spunbonded nonwoven web.

Another recommended embodiment of the invention is characterized in that at least one rotatable shaft, preferably a plurality of rotatable shafts extending in the conveying direction of the spunbonded web or substantially in the conveying direction of the spunbonded web and that at least one shaft extending in the longitudinal direction of the shaft Disk is connected. Conveniently, only one shaft extending in the longitudinal direction of the shaft is connected to each shaft. These are preferably discs with flat disc surfaces. It is within the scope of the invention that the shaft or the waves in each case perform a pendulum rotation about its axis of rotation. The disks or disk surfaces of the individual shafts form the side wall or the side walls of a filament guide gap or of filament guide gaps. The discs are reciprocated by the pendulum rotation of the shaft or the waves in each case by a certain angle section and expediently the discs oscillate about their vertical position.

A further preferred embodiment of the invention is characterized in that the filament guide device has at least two guide components extending transversely to the conveying direction, wherein each guide component has a plurality of filament guide columns juxtaposed to the conveying direction and wherein the two guide components of the filament guide device are in the conveying direction with the proviso. and that in turn, substantially the filament guide gaps of one guide component and then substantially the filament guide gaps of the other guide component are brought into engagement with the filament curtain. The reciprocating motion is expediently carried out in the form of a vibration or a symmetrical oscillation about a neutral position. Preferably, the filament guide gaps of the one guide component are different formed or arranged the Filamentführungsspalten the other guide component. It is recommended that the filament guide gaps of the two guide components differ by the orientation or inclination of their side walls. According to one embodiment, the side walls of the filament guide gaps of the one guide component are inclined in a direction transverse to the conveying direction of the spunbonded web and the side walls of the filament guide nips of the other guide component are inclined in the opposite direction transverse to the conveying direction. Preferably, the side walls of the two guide components are offset from one another. According to one embodiment, the side walls of the two guide components are inclined by the same angle.

It is within the scope of the invention that at least one guide surface extending transversely to the conveying direction of the spunbonded web is arranged between the filament guiding device and the depositing device. Preferably, at least a portion of this guide surface to the storage device - the delivery space for the filaments narrowing - formed inclined. Conveniently, this guide surface extends at least over most of the width of the spunbonded web. It is within the scope of the invention that it is a flat guide surface, which is formed inclined over its entire surface to the storage device.

An embodiment of the invention is characterized in that at least one guide surface extending transversely to the conveying direction of the spunbonded web is arranged between the filament guiding device and the depositing device, which guide surface is curved or curved and forms at least one constriction for the conveying space of the filaments. Empfohlenermaßen this has at least one guide surface at least one section converging toward the depositing device and at least one section diverging towards the depositing device. It is within the scope of the invention that two curved guide surfaces - together forming at least one constriction for the delivery space of the filaments - between filament guide means and storage device is arranged and have at least one converging region and at least one diverging region. In principle, however, only a curved guide surface between drawing unit and depositing device can also be present. The at least one curved or curved guide surface preferably extends over at least the major part of the width of the spunbonded nonwoven web.

It is within the scope of the invention that the filament deposit or the deposited spunbonded nonwoven web is solidified on the depositing device. Basically, different solidification measures are possible. The spunbonded nonwoven web can in principle be subjected to thermal consolidation and / or mechanical consolidation and / or chemical hardening. According to one embodiment of the invention, the spunbonded nonwoven web is consolidated with at least one calender or thermally solidified. According to a further embodiment, as an alternative or in addition to the calendering for solidifying the nonwoven web, a hydrodynamic consolidation (hydroentanglement) and / or a mechanical needling is carried out by means of a needle device.

The subject matter of the invention is also a spunbonded fabric which has been produced by means of the plant described above or according to the process explained above. This spunbonded fabric is distinguished from known spunbonded nonwovens - in particular over known spunbond processes spunbonded nonwovens - characterized in that significantly more filament components are oriented transversely to the machine direction (CD).

The invention is based on the finding that spun nonwovens having isotropic properties, ie, having the same or substantially the same properties both in the machine direction (MD) and transversely to the machine direction (CD), can be produced with the installation according to the invention. This is especially true for spunbonded nonwovens with higher basis weights. In particular, same nonwoven strengths can be achieved in both the machine direction (MD) and cross machine direction (CD). However, other properties of the spunbonded nonwoven fabrics according to the invention, such as dimensional stability, tear propagation resistance, etc., are characterized by optimum isotropy with respect to the directions mentioned. The invention is based, in particular, on the knowledge that a desired transverse orientation can be very effectively imposed on the deposited filaments by means of the measures according to the invention, above all by means of the filament guiding devices according to the invention. This is functionally reliable, precise and reproducible possible within the scope of the invention. The system according to the invention is characterized by a simple structure and high reliability. Advantageously, the existing system can be easily integrated into existing systems, so that, for example, for the production of spunbonded fabrics with high basis weights in an advantageous manner, the already known from practice facilities can be used. The measures according to the invention are therefore characterized by a high level of economy. The essential feature of the system according to the invention is also the secure guidance of the filaments or filament bundles in the filament guide devices, whereby an advantageous filing of the filaments or filament bundles with transversely oriented components on the depositing device is ensured. The leadership of the filaments through the at least Above all, a filament guiding device also permits a precise adjustment of the mechanical properties of a spunbonded fabric in the machine direction and transversely to the machine direction, which setting is also easily reproducible. Overall, the system according to the invention is distinguished by considerable advantages.

Fig. 1

einen Vertikalschnitt durch eine erfindungsgemäße Anlage,

Fig. 2

eine perspektivische Ansicht einer Führungskomponente einer erfindungsgemäßen Filamentführungseinrichtung,

Fig. 3A

einen vergrößerten Ausschnitt aus der Fig. 1,

Fig. 3B

den Gegenstand gemäß Fig. 3A in einer anderen Ausführungsform,

Fig. 3C

einen Schnitt durch die Führungskomponente aus Fig. 2 in einer ersten Funktionsstellung,

Fig. 3D

den Gegenstand gemäß Fig. 3C in einer zweiten Funktionsstellung,

Fig. 4

den Gegenstand nach Fig. 3A in einer weiteren Ausführungsform,

Fig. 5

eine Draufsicht auf den Gegenstand gemäß Fig. 4 im Schnitt,

Fig. 6

den Gegenstand nach Fig. 3A in einer anderen Ausführungsform,

Fig. 7

den Gegenstand gemäß Fig. 3A in einer zusätzlichen Ausführungsform,

Fig. 8A

einen Schnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Filamentführungseinrichtung,

Fig. 8B

den Gegenstand nach Fig. 8A in einer anderen Funktionsstellung und

Fig. 9

eine perspektivische Ansicht einer zusätzlichen Ausführungsform einer erfindungsgemäßen Filamentführungseinrichtung.

The invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment. In a schematic representation:

Fig. 1

a vertical section through a plant according to the invention,

Fig. 2

a perspective view of a guide component of a filament guide device according to the invention,

Fig. 3A

an enlarged section of the Fig. 1 .

Fig. 3B

the object according to Fig. 3A in another embodiment,

Fig. 3C

a section through the guide component Fig. 2 in a first functional position,

Fig. 3D

the object according to Fig. 3C in a second functional position,

Fig. 4

the object after Fig. 3A in a further embodiment,

Fig. 5

a plan view of the article according to Fig. 4 on average,

Fig. 6

the object after Fig. 3A in another embodiment,

Fig. 7

the object according to Fig. 3A in an additional embodiment,

Fig. 8A

a section through a further embodiment of a filament guide device according to the invention,

Fig. 8B

the object after Fig. 8A in another working position and

Fig. 9

a perspective view of an additional embodiment of a filament guide device according to the invention.

In Fig. 1 is a plant for the continuous production of a spunbonded web S from aerodynamically stretched filaments made of thermoplastic material. The system has a spinnerette 1 and a cooling chamber 2 arranged below the spinnerette 1, into which process air for cooling the filaments can be inserted. Adjoining the cooling chamber 2 is an intermediate channel 3, onto which a drawing unit 4 with a draw-down channel 5 follows in the flow direction of the filaments. At the lower channel 5 includes a laying unit 6. Below the laying unit 6, a storage device in the form of a continuously circulating Ablagesiebbandes 7 for filing the filaments to the spunbonded web S is provided. In the exemplary embodiment, the aggregate of cooling chamber 2, intermediate channel 3 and stretching unit 4 - apart from the air supply in the cooling chamber 2 - formed as a closed system. Another air supply is therefore not provided in this unit.

Furthermore, in Fig. 1 illustrated that an air supply cabin 8 is arranged next to the cooling chamber 2, which air supply cabin 8 according to the embodiment in an upper cabin portion 8a and a lower Cabin section 8b is divided. From the two cabin sections 8a, 8b process air of different temperature can be fed and in the cooling chamber 2, the emerging from the nozzle plate 10 of the spinnerette 1 filaments are acted upon with this process air. Appropriately and according to the embodiment Fig. 1 is between the nozzle plate 10 and the cooling chamber 2, a Monomerabsaugvorrichtung 27 is arranged, can be removed with the occurring during the spinning process, interfering gases from the system.

Furthermore, in Fig. 1 recognizable that the intermediate channel 3 from the outlet of the cooling chamber 2 to the inlet of the lower draw 5 of the drawing unit 4 in a vertical section converges wedge-shaped and expediently and in the embodiment of the inlet width of the Unterziehkanals 5. - The drawing unit 4 and the Unterziehkanal 5 has a drawing shaft for the Filaments which extends transversely to the conveying direction 23 of the spunbonded web S and expediently at least over the greater part of the width of the deposited spunbonded nonwoven web S. From the Verstreckschacht exits a filament curtain F from the filaments, which is also transverse to the conveying direction 23 of the spunbonded web S. extends.

Between the draw unit 4 and between the lower channel 5 and the Ablagesiebband 7, as in Fig. 1 shown, a filament guide device 11 is arranged. According to one embodiment and in the embodiment according to Fig. 1 the filament guide device 11 consists of a guide component 11a with a rotating shaft 16, which will be explained in more detail below. With the aid of the filament guiding device or by means of the shaft 16, the filaments emerging in the form of the filament curtain F from the drawing shaft of the drawing unit 4 are deflected transversely to the conveying direction 23 of the laying screen belt 7. The filaments experience an additional due to this deflection by the filament guide device 11 Transverse orientation (transverse to the machine direction) during storage on the Ablagesiebband. 7

Below the filament guide device 11 is in the embodiment according to

Fig. 1 a laying unit 6 with two guide surfaces 14a, 14b arranged. These guide surfaces 14a, 14b extend expediently and in the exemplary embodiment transversely to the conveying direction 23 of the spunbonded nonwoven web S, preferably over at least the major part of the width of the spunbonded nonwoven web S. The left-hand guide surface 14a is in accordance with the exemplary embodiment Fig. 1 just trained and inclined to the storage screen belt 7. On the other hand, the right guide surface 14b is curved and has an upper portion converging toward the center plane M and a lower portion diverging from the center plane M. The laying unit 6 according to Fig. 1 is incidentally also in the Fig. 3A shown.

The Fig. 2 shows a perspective view of a guide component 11a of a filament guide device 11 with a rotating shaft 16. In the embodiment according to the Fig. 1 . 3A and 3B If the filament guide device 11 only consists of such a guide component 11a. In this case, the axis of rotation D of the shaft 16 is in each case offset to the left offset to the center plane M or to the filament curtain F. The shaft 16 has, according to a very preferred embodiment and in the embodiment, a plurality of circular discs 17 which are rigidly connected to the shaft 16. The discs 17 are arranged obliquely to the rotation axis D of the shaft and preferably arranged parallel to each other and in the embodiment. Between the discs 17 filament guide gaps 12 are formed for guiding or deflecting the filaments of the filament curtain F. The filament guide gaps 12 have stretching unit-side openings 13. By rotation of the shaft 16, these stretch unit side openings 13 of the filament guide column become 12 transversely to the conveying direction 23 of the spunbonded web S shifted. This is especially a comparative consideration of 3C and 3D removable. By rotation of the shaft 16 filament bundles 21 from a plurality of filaments are picked out from the filament curtain F as it were. In this case, a filament bundle 21 is expediently received completely within a filament guide gap 12 between two panes 17. In the 3C and 3D the filament bundles 21 received in the filament guide gaps 12 are shown. The filament bundles 21 are deflected transversely to the conveying direction 23 of the spunbonded web S. The functional position of the shaft 16 in Fig. 3D differs from the functional position according to Fig. 3C in that the shaft 16 has been rotated half a turn further. A comparative consideration of 3C and 3D can be taken that the filament bundles 21 are deflected alternately in the opposite deflection direction transverse to the conveying direction 23 upon rotation of the shaft 16. When rotating the shaft 16, by the way, a neutral position is also run through, in which the filament bundles 21 meet the depositing screen belt 7 without distraction or substantially without distraction along the median plane M. The rotation of the shaft 16 can thus also be understood as vibration about said neutral position. As already explained above, the filament guide gaps 12 and their stretching unit side openings 13 are transversely to the conveying direction 23 of the spunbonded web S displaced during the movement or during rotation of the shaft 16, so that the guided through the Filamentführungsspalte 12 filaments or filament bundles 21 in the Storage on the storage device or on the Ablagesiebband 7 a transverse orientation with respect to the conveying direction 23 is imposed. Incidentally, the shaft 16 has a diameter d and the disks 17 have a diameter D _S in the projection. Furthermore, the discs 17 are arranged at an angle α obliquely to the axis of rotation D of the shaft 16. The connected to the shaft 16 Washers 17 are preferred at a mutual distance s and arranged parallel to each other in the embodiment.

The FIGS. 3A and 3B show the embodiment in which the filament guide device 11 according to the invention only has a guide component 11a with only one rotating shaft 16. As already explained above, the shaft 16 or the axis of rotation D of the shaft 16 is offset from the center plane M or offset from the filament curtain F. Namely, the rotation axis D has a distance I to the center plane M. The end of the drawing shaft of the draw-down channel 5 is arranged at a distance a from the storage cloth belt 7 and the axis of rotation D of the shaft 16 has a distance b from the storage cloth belt 7. In the Fig. 3A is the already described laying unit 6 of the embodiment according to Fig. 1 shown. Fig. 3B on the other hand shows another laying unit 6 with only one guide surface 14b curved in a circular cross section, which likewise extends transversely to the conveying direction 23 of the spunbonded web S.

In the Fig. 4 a further embodiment of a filament guide device 11 according to the invention is shown. Here are two guide components 11a, 11b, each with a transverse to the conveying direction of the spunbonded web S oriented rotating shaft 16 is present. The axes of rotation D of the two shafts 16 are arranged here at the same vertical height. In this embodiment, the discs 17 of a shaft 16 engage in disc spaces of the other shaft 16. This is particularly clear in the plan view according to Fig. 5 recognizable. A filament guide gap 12 is formed here in each case between a disk 17 of a shaft 16 and a disk 17 of the other shaft 16. The shafts 16 mesh with their discs 17 in this embodiment, as it were with each other. Incidentally, the two shafts 16 can rotate in the same direction or in opposite directions. It can rotate clockwise or counterclockwise. In this embodiment ( Fig. 4 ) as well as in the embodiments described below after the 6 and 7 By the way, the laying unit 6 is designed in the form of a diffuser. Here are preferred between the filament guide device 11 and the Ablagesiebband 7 and in the embodiment, two symmetrically to the median plane M curved guide surfaces 14a and 14b are provided. These curved guide surfaces 14a, 14b form an upper converging region and an adjoining constriction and a subsequent area diverging towards the deposit screen belt 7.

In the embodiment according to Fig. 6 are also two guide components 11a, 11b, each with a rotating shaft 16 is present. Here, however, the two shafts 16 or their axes of rotation D are arranged at such a distance from one another that the discs 17 of one shaft 16 do not engage in the interpane spaces of the other shaft. The filaments are as it were passed between the axes of rotation D of the two shafts 16.

In the embodiment according to Fig. 7 are two rotating shafts 16 and whose axes of rotation D arranged at different vertical height or the axes of rotation D are arranged in different horizontal planes. Both waves are also offset from the center plane M and the filament curtain F and the filaments are passed between the axes of rotation D of the two shafts 16. - Also in the embodiments according to Fig. 6 and Fig. 7 The two waves can rotate in the same direction or in opposite directions. The rotation can be clockwise or counterclockwise.

In the 8A, 8B an alternative embodiment of a filament guiding device 11 according to the invention is shown. Here, the filament guide device 11 has a plurality of rotating shafts 16 extending in the conveying direction 23 of the spunbonded nonwoven web S. To each shaft 16 a extending in the longitudinal direction of the shaft disc 17 is connected. Preferably, and in the exemplary embodiment, the shafts 16 each execute a pendulum rotation about certain angular sections about its axis of rotation D. As a result, the existing between the discs 17 Filamentführungsspalte 12 and their stretch unit side openings 13 are transversely to the conveying direction 23 of the spunbonded web S shifted. Because of this shift, the filaments or filament bundles 21 of the filament curtain F are deflected transversely to the conveying direction 23 of the spunbonded nonwoven web S. That is a comparative consideration of Figs. 8A and 8B removable. In Fig. 8A By the way, a neutral position of the shafts 16 or their disks 17 is shown. The disks 17 perform as it were oscillations about this neutral position and in the course of these oscillations or pendulum rotational movements, the filaments are deflected transversely to the conveying direction 23.

At the in Fig. 9 In the illustrated embodiment, the filament guiding device 11 has two guide components 11a, 11b extending transversely to the conveying direction 23 of the spunbonded web S, each of these guiding components 11a, 11b having a plurality of filament guide gaps 12 arranged transversely to the conveying direction 23. This Filamentführungsspalte 12 are formed between obliquely to the filament curtain F and the center plane M inclined side walls 22, wherein the side walls 22 are connected to transverse to the conveying direction 23 guide struts 24. The side walls 22 of the two guide components 11a, 11b are inclined in opposite directions or arranged obliquely and offset from one another. The two guide components 11a and 11b are reciprocated in the conveying direction 23, so that alternately the filament guide gaps 12 of a guide component 11 a and the filament guide gaps 12 of the other guide component 11 b come into engagement with the filament curtain F. In turn, filament bundles 21 are picked out of the filament curtain F and deflected transversely to the conveying direction 23. These guide components 11a, 11b also move or oscillate, as it were, about a neutral position in which there is no or substantially no deflection of the filaments or filament bundles 21. During the reciprocating movement or during the oscillation of the guide components 11a, 11b, the filament bundles 21 are deflected alternately in one direction and in the other direction opposite to the direction of conveyance 23.

• In der Tabelle werden Parameter und Messergebnisse für Ausführungsbeispiele Nr. 1 bis 4 nach der erfindungsgemäßen Lehre sowie zum Vergleich Vergleichsbeispiele Nr. V1 und V2 ohne erfindungsgemäße Filamentführungseinrichtung 11 aufgeführt. In allen Fällen wurde mit einer Anlage entsprechend Fig. 1 gearbeitet, wobei sich die einzelnen Ausführungsbeispiele bzw. Vergleichsbeispiele lediglich durch die Ausbildung der Filamentführungseinheit 11 und der Verlegeeinheit 6 zwischen der Verstreckeinheit 4 und dem Ablagesiebband 7 unterschieden. Bei den Ausführungsbeispielen 1 bis 3 war der Bereich zwischen Verstreckeinheit 4 und Ablagesiebband 7 entsprechend Fig. 3B ausgeführt. Hier war also eine versetzt zur Mittelebene M angeordnete Welle 16 vorgesehen sowie eine zur Mittelebene M versetzt orientierte gebogene Führungsfläche 14b vorhanden. Bei dem Ausführungsbeispiel 4 war der Bereich zwischen Verstreckeinheit 4 und Ablagesiebband 7 entsprechend dem Ausführungsbeispiel gemäß Fig. 3A ausgebildet. Hier waren also eine versetzt angeordnete Welle 16 sowie zwei darunter angeordnete Führungsflächen 14a, 14b (entsprechend Fig. 3A) vorhanden. Beim Vergleichsbeispiel V2 wurde mit der Verlegeeinheit 6 - das heißt mit den Führungsflächen 14a, b - entsprechend Fig. 3A, aber ohne Welle 16 gearbeitet. Im Vergleichsbeispiel V1 war zwischen Verstreckeinheit 4 und Ablagesiebband 7 ein sogenannter REICOFIL IV-Diffusor eingesetzt, der in EP 1 340 843 B1 , Fig. 3, dargestellt ist. Auch hier wurde ohne Filamentführungseinrichtung 11 bzw. ohne Welle 16 gearbeitet.
• In der zweiten Spalte der Tabelle wird das Flächengewicht der erhaltenen Spinnvliesbahn S in g/m² angegeben und in der dritten Spalte der Tabelle die Liniengeschwindigkeit bzw. die Fördergeschwindigkeit der Spinnvliesbahn S in m/min. In der vierten Spalte der Tabelle wird der für die Filamente bzw. der für die Herstellung der Spinnvliesbahn S eingesetzte thermoplastische Kunststoff bzw. Rohstoff angegeben, und zwar zu den Ausführungsbeispielen Nr. 1 bis 3 und zu den Vergleichsbeispielen V1 sowie V2 Polypropylen mit der zugehörigen Schmelzflussrate MFR. Im Ausführungsbeispiel Nr. 4 wurden Bikomponentenfilamente mit Kern-Mantel-Konfiguration eingesetzt, wobei der Kern aus Polyethylenterephthalat (PET) und der Mantel aus einem Copolymer von PET bestanden. In den weiteren Spalten der Tabelle wird der Abstand a zwischen dem Ende der Verstreckeinheit 4 und dem Ablagesiebband 7, der Abstand b zwischen der Drehachse D der Welle 16 und dem Ablagesiebband 7 sowie der Abstand I der Drehachse D von der Mittelebene M angegeben. In den folgenden Spalten findet sich der Durchmesser d der eingesetzten Welle 16 sowie der Durchmesser der Scheiben 17 in der Projektion (D_S) und der gegenseitige Abstand s der Scheiben sowie weiterhin der Winkel α unter dem die Scheiben 17 schräg zur Drehachse D angeordnet sind. In den darauf folgenden Spalten sind die Zugfestigkeit in Maschinenrichtung (MD) in N/5cm sowie die Zugfestigkeit quer zur Maschinenrichtung (CD) in N/5cm für die einzelnen Beispiele angegeben. Die Zugfestigkeiten wurden im Übrigen nach EDANA 20.2-89 gemessen. Daran schließt eine Spalte mit dem entsprechenden Verhältnis MD/CD an. Die beiden letzten Spalten beziehen sich wiederum auf die rotierende Welle 16. In der vorletzten Spalte ist die Wellendrehzahl angegeben und in der letzten Spalte die Antriebsart für die Welle 16. In den Ausführungsbeispielen 1 bis 3 wurde die rotierende Welle 16 lediglich durch die strömende Prozessluft angetrieben. Dagegen wurde im Ausführungsbeispiel 4 ein Elektromotor zum Antrieb der Welle 16 eingesetzt. - Es versteht sich im Übrigen, dass in den Vergleichsbeispielen V1 bis V2 keine die Welle 16 betreffenden Parameter bzw. Informationen angegeben sind, da hier bekanntlich keine Filamentführungseinrichtung 11 bzw. Welle 16 eingesetzt wurde.

The invention will be explained in more detail below on the basis of exemplary embodiments:

• In the table, parameters and measurement results for embodiments no. 1 to 4 according to the teaching of the invention and for comparison, comparative examples no. V1 and V2 without inventive filament guide device 11 are listed. In all cases was with a plant accordingly Fig. 1 worked, with the individual embodiments or comparative examples differed only by the formation of the filament guide unit 11 and the laying unit 6 between the drawing unit 4 and the Ablagesiebband 7. In the embodiments 1 to 3, the area between the stretching unit 4 and the storage cloth belt 7 was corresponding Fig. 3B executed. Here, therefore, a shaft 16 offset from the center plane M was provided and a curved guide surface 14b oriented offset from the center plane M was present. In the embodiment 4, the area between the stretching unit 4 and the storage cloth belt 7 was corresponding the embodiment according to Fig. 3A educated. So here were a staggered shaft 16 and two arranged underneath guide surfaces 14a, 14b (corresponding Fig. 3A ) available. In Comparative Example V2 was with the laying unit 6 - that is, with the guide surfaces 14a, b - accordingly Fig. 3A but worked without shaft 16. In Comparative Example V1, a so-called REICOFIL IV diffuser was used between the stretching unit 4 and the storage cloth belt 7, which in EP 1 340 843 B1 . Fig. 3 , is shown. Again, without filament guide device 11 or without shaft 16 was worked.
• In the second column of the table, the basis weight of the obtained spunbonded nonwoven web S is given in g / m ² and in the third column of the table the line speed or the conveying speed of the spunbonded nonwoven web S in m / min. In the fourth column of the table for the filaments or for the production of the spunbonded nonwoven web S used thermoplastic material or raw material is given, namely to the embodiments Nos. 1 to 3 and to the comparative examples V1 and V2 polypropylene with the associated melt flow rate MFF. In Embodiment No. 4, bicomponent filaments of core-sheath configuration were used, wherein the core was made of polyethylene terephthalate (PET) and the sheath was made of a copolymer of PET. In the other columns of the table, the distance a between the end of the stretching unit 4 and the Ablagesiebband 7, the distance b between the axis of rotation D of the shaft 16 and the Ablagesiebband 7 and the distance I of the axis of rotation D of the median plane M is given. In the following columns, the diameter d of the inserted shaft 16 and the diameter of the discs 17 in the projection (D _S ) and the mutual distance s of the discs and also the angle α under which the discs 17 are arranged obliquely to the axis of rotation D. In the following columns the machine direction (MD) tensile strength in N / 5cm and the cross machine direction (CD) tensile strength in N / 5cm for the given individual examples. The tensile strengths were also measured according to EDANA 20.2-89. This is followed by a column with the corresponding ratio MD / CD. The last two columns relate in turn to the rotating shaft 16. In the penultimate column, the shaft speed is indicated and in the last column, the drive for the shaft 16. In the embodiments 1 to 3, the rotating shaft 16 was driven only by the flowing process air , In contrast, in the embodiment 4, an electric motor for driving the shaft 16 was used. It is understood, moreover, that no parameters or information relating to the shaft 16 are given in the comparative examples V1 to V2, since no filament guiding device 11 or shaft 16 has been used here, as is known.

When comparing the exemplary embodiments 1 to 4 with the comparative examples V1 and V2 (without filament guide device 11) according to the invention with filament guide device 11, it can be seen that the spunbonded nonwoven webs S produced according to the invention have, in particular, an improved tensile strength in the transverse direction (CD ) compared to the comparative examples. Thus, the spunbond webs S produced according to the invention are characterized by considerable advantages. Concerning the comparative examples, it should be pointed out that the nonwoven spunbonded nonwoven web according to Comparative Example C1 has a relatively uniform or homogeneous filament deposit and is also characterized by relatively favorable strength values, although these strength values are not optimal, in particular with regard to the basis weight of the spunbonded nonwoven as in the spunbonded webs produced according to the invention. In contrast, in Comparative Example C2 - without Reicofil 4 diffuser - a relatively uneven Filamentablage is achieved and on the other hand, significantly lower strength values are achieved.

Claims (17)

Plant for the continuous production of a spunbonded nonwoven web (S) of filaments, in particular of aerodynamically stretched filaments, preferably of thermoplastic material, with at least one spinnerette (1), a cooling chamber (2) for cooling the filaments, a stretching unit (4) and a depositing device for storing the filaments to the spunbonded nonwoven web (S),
wherein between the drawing unit (4) and the depositing device at least one filament guiding device (11) is provided with a plurality of filament guiding columns (12) open towards the drawing unit (4),
wherein the filament guiding device (11) or at least one guiding component of the filament guiding device (11) is movable with the proviso that the Filamentführungsspalte (12) or their Verstreckeinheitsseitigen openings (13) are displaced, in particular transversely to the conveying direction of the spunbonded web (S) to be displaced such that the filaments or filament bundles (21) guided along or through the filament guide gaps (12) are subjected to a transverse orientation with respect to the conveying direction of the spunbonded nonwoven web (S) during deposition on the depositing device. Installation according to claim 1, wherein the filaments emerging from the stretching unit (4) can be divided into filament bundles (21) by means of the filament guiding device (11) or with at least one guiding component of the filament guiding device (11), wherein the filament bundles (21) are expediently passed through the filament guide guide nips (12) or through the stretching unit-side openings (13) of the filament guide gaps (12) are guided. Installation according to one of claims 1 or 2, wherein the filament guide device (11) or at least one guide component of the filament guide device (11) is periodically movable. Installation according to one of claims 1 to 3, wherein the filament guide device (11) at least one rotatable or rotating shaft (16), wherein the shaft (16) at least one disc (17) is connected, wherein the disc (17) Side wall forms at least one filament guide gap (12). Installation according to one of Claims 1 to 4, the filament guiding device (11) having at least one rotatable or rotating shaft (16) arranged transversely to the conveying direction of the spunbonded nonwoven web (S), a plurality of discs (17) being connected to the shaft, wherein the filament guide columns (12) are formed between the discs (17) and wherein perpendicular from different points of the outer periphery and / or the outer region of a disc (17) to the rotation axis (D) of the shaft extending different intersections with the axis of rotation (D) of Have wave (16). Plant according to claim 5, wherein at least a portion of the discs (17) of a shaft (16), preferably all discs (17) of the shaft (16) or the majority of the disc surface of these discs (17) obliquely to the axis of rotation ( D) of the shaft (16) is / are arranged. Installation according to one of claims 4 to 6, wherein per revolution of the shaft (16) at least one - preferably a - deflection of the filaments takes place transversely to the conveying direction of the spunbonded web (S). Installation according to one of claims 4 to 7, wherein the rotational speed of the shaft (16) is adjustable and wherein by adjusting the rotational speed of the shaft (16) the number or the frequency of the deflections of the filaments or filament bundles (21) is adjustable. Installation according to one of claims 5 to 8, wherein the filament guide device (11) at least two transversely to the conveying direction of the spunbonded web (S) arranged rotatable or rotating shafts (16), wherein each shaft (16) has a plurality of discs (17). connected. Installation according to claim 9, wherein two shafts (16) are arranged at the same vertical height or at substantially the same vertical height and wherein preferably the discs (17) of one shaft (16) engage in disc spaces of the other shaft (16) and vice versa. Installation according to one of claims 9 or 10, wherein at least two shafts (16) - in particular two shafts (16) - are arranged at different vertical height and wherein preferably the axes of rotation (D) of the shafts (16) are arranged offset from each other in the vertical direction , In particular on opposite sides of the out of the stretching unit (4) exiting filament curtain (F) are arranged. Installation according to one of claims 1 to 4, wherein at least one rotatable shaft (16) preferably a plurality of rotatable shafts (16) extending in the conveying direction of the spunbonded web (S) and wherein each shaft (16) at least one in the longitudinal direction of the shaft extending pulley (17) is connected and wherein preferably the shaft (16) or the shafts (16) perform a pendulum rotation about its axis of rotation (D). Installation according to one of claims 1 to 3, wherein the filament guide device (11) at least two transverse to the conveying direction of the spunbonded web (S) extending guide components (11a, 11b), each guide component (11a, 11 b) a plurality of transverse to the conveying direction the spunbonded web (S) comprises filament guide gaps (12) lined up with one another, wherein the filament guide gaps (12) of one guide component (11a) are different from the filament guide columns (12) of the other guide component (11b) and wherein the two guide components (11a, 11 b) are reciprocated in the conveying direction of the spunbonded web (S) with the proviso that alternately the Filamentführungsspalte (12) of a guide component (11 a) and the Filamentführungsspalte (12) of the other guide component (11 b) in engagement with the filament curtain (F ) are brought or come. Plant according to claim 13, wherein the filament guide gaps (12) of the two guide components (11a, 11b) differ by the orientation and in particular by the inclination of their side walls (22). Plant according to one of Claims 1 to 14, at least one guide surface (14a, 14b) extending transversely to the conveying direction of the spunbonded nonwoven web being arranged between the filament guiding device (11) and the depositing device, and preferably at least one subregion of the guide surface (14a, 14b) Storage device is formed inclined. Installation according to one of claims 1 to 15, wherein between the filament guide device (11) and the depositing device at least one transversely to the conveying direction of the spunbonded web (S) extending guide surface (14a, 14b) is arranged, which guide surface (14a, 14b) curved - At least one bottleneck for the flow of filaments forming - is executed. Spunbonded nonwoven web or spunbonded nonwoven of filaments, in particular of continuous filaments of thermoplastic material, produced with a system according to one of Claims 1 to 16.

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