EP1837429B1 - Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques - Google Patents

Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques Download PDF

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Publication number
EP1837429B1
EP1837429B1 EP06005679A EP06005679A EP1837429B1 EP 1837429 B1 EP1837429 B1 EP 1837429B1 EP 06005679 A EP06005679 A EP 06005679A EP 06005679 A EP06005679 A EP 06005679A EP 1837429 B1 EP1837429 B1 EP 1837429B1
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EP
European Patent Office
Prior art keywords
fiber
deposit belt
fibers
belt
stream
Prior art date
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Not-in-force
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EP06005679A
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German (de)
English (en)
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EP1837429A1 (fr
Inventor
Mathias STÜNDL
Mathias Gröner-Rothermel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
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Oerlikon Textile GmbH and Co KG
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Priority to EP06005679A priority Critical patent/EP1837429B1/fr
Publication of EP1837429A1 publication Critical patent/EP1837429A1/fr
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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
    • D04H3/03—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
    • D04H3/037—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 reorientation by liquid
    • 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 method for depositing synthetic fibers to a nonwoven according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 10.
  • a plurality of extruded filament strands must be deposited as evenly as possible to form a fabric.
  • the filament strands are more or less withdrawn after extrusion and cooling by a conveying fluid and guided to a storage belt.
  • a trigger nozzle device is used to pull the synthetic fibers after extruding from a spinning device to stretch and deposit.
  • the draw-off nozzle device has a guide channel which has a slot-shaped fiber inlet on an upper side and a slot-shaped fiber outlet on the underside.
  • the known method and the known devices have proven particularly useful in order to be able to drive high production speeds, wherein the filament strands can reach speeds of up to 8,000 m / min.
  • the fiber stream generated by the exhaust nozzle means impinges on the surface of the deposition belt with relatively high energy.
  • a method and a device are known, with which the fibers are deflected before depositing. In this apparatus and the method shown, however, a significant portion of the kinetic energy stored in the fibers is removed during the deflection process by the mechanical action. This adversely affects the filing of the fibers.
  • the invention is therefore an object of the invention to provide a method and apparatus for depositing fibers at high speeds of the generic type, in which or which a safe flow of the web is guaranteed by the storage belt.
  • This object is achieved for the inventive method in that the fiber flow at high fiber speeds in the range of 3500 m / min to 8000 m / min just before hitting the deposit belt by means of a Coanda effect or an additional air flow on one side in the guide direction of the storage belt such is deflected that the fibers impinge on the storage belt at an angle of ⁇ 90 °.
  • the solution of the object of the invention for a generic device is given by the fact that the deflection belt is associated with a deflection, through which an emerging from the guide channel fiber flow at high fiber speeds in the range of 3500 m / min to 8000 m / min immediately before hitting the Ablageband by means of a Coanda effect or an additional air flow on one side in the direction of the storage belt such is deflected that the fibers impinge on the storage belt at an angle of ⁇ 90 °.
  • the invention was not by the from the US 2002/0158362 A1 known method and known device suggested.
  • an air vortex is generated immediately after the exit of the fiber stream from the discharge nozzle device, which generates a traversing movement on the fibers, so that the fibers deposit irregularly in a storage area on the surface of the storage belt.
  • the guide means provided for generating air vortices is assigned directly to the outlet side of the exhaust nozzle device in order to obtain as far as possible a large free distance for the formation of the traversing movement in the fibers until it reaches the storage belt.
  • Such methods and devices are also suitable only for low fiber speeds.
  • the DE 37 40 893 A1 discloses a method and apparatus for making a spunbonded web in which the fibers are fed to a tray in a diffuser shaft.
  • the fiber flow on both sides can be influenced by arranged within the diffuser shaft pivotable guide means.
  • such methods and devices basically have the disadvantage that a correlation between the opposing guide means occurs, which leads to unstable conditions in the way that both a deflection of the fibers in the guide direction of the storage belt or against the guide direction of the storage belt is possible.
  • such devices are totally unsuitable for stretching and depositing fibers at high filament speeds.
  • the method according to the invention and the device according to the invention are based on a one-sided stable deflection of the fiber stream shortly before the fibers hit the support belt.
  • the fibers are deflected in the direction of the storage belt so that the fibers impinge on the storage belt at an angle of ⁇ 90 °.
  • the fibers guided at high speeds can be deposited gently and gently on the storage belt.
  • certain portions of the kinetic energy can thus be integrated into the web formation. This effect can be used advantageously to increase the guide speed of the storage belt.
  • the process variant in which the fiber flow is deflected so strongly that the fibers impinge on the deposition belt at an angle of ⁇ 60 °, is particularly suitable for being able to deposit fine filament titers with high fiber speeds.
  • the intensity of the deflection of the fiber stream in dependence on a process or to change a product parameter is proposed according to an advantageous development of the method according to the invention.
  • the process parameters are the settings of the discharge nozzle devices as well as the storage belt, such as the speed of transport of the storage belt.
  • the filament titer or the filing density of the nonwoven fabric could be used to make certain settings for the deflection of the fiber stream.
  • the deflection of the fiber stream before depositing the fibers on the storage belt can be carried out by various methods.
  • the deflection of the fiber stream is effected by a guide plate, which extends laterally to the fibers in the region between the guide channel and the storage belt.
  • the deflection of the fiber stream is effected by an additional air flow, which flows transversely to the fibers in the guide direction of the storage belt This can produce a very narrow limited acting on the fiber flow deflection, which additionally causes a turbulence of the filaments.
  • Such a short path for the deflection of the fiber stream has the advantage that the flow phenomenon caused on the outlet side of the exhaust nozzle devices by the fiber outlet for stretching the fibers remain completely unaffected.
  • a significantly limited effective distance for the deflection of the fiber stream can also be achieved by a third method in that a shaped body is assigned to the fiber stream immediately before the fibers are deposited.
  • the molding is held at a small distance above the storage belt laterally next to the fibers.
  • the Coanda effect is also used to obtain a deflection of the fiber stream on the molding.
  • the molded body which dips into the boundary layer of the fiber stream, has a strong flow in the deflection direction so that, due to the physical phenomenon discovered by the physicist Coanda, the air flow sticks to the surface and is thus deflected out of its guideway.
  • the fibers are preferably drawn with a conveying fluid under the action of an overpressure in the range of 0.5 to 5 bar in the guide channel, accelerated and blown out as a fiber stream.
  • a free path between the fiber outlet of the guide channel and the surface of the storage belt of ⁇ 500 mm preferably ⁇ 300 mm can be adjusted. This can be very compact deduction and storage facilities for the production of spunbonded realize.
  • the deflection belt is associated with a deflection means by which the emerging from the guide channel fiber flow is deflected just before impinging on the storage tape on one side in the guide direction of the storage belt such that the fibers impinge at an angle of ⁇ 90 ° to the storage belt.
  • Even very reproducible fiber deposits can thus be made to form a fleece.
  • Even at high fiber speeds, entanglements of individual fibers with the storage belt can be avoided.
  • the kinetic energy of the fibers can advantageously be used with a component in the guide direction of the deposition belt for web formation.
  • the deflection means is formed by an air flow generator
  • the deflection means is formed by a baffle which extends laterally to the fibers in the region between the guide channel and the storage belt on the nonwoven laxative side of the storage belt.
  • the guide plate is arranged in such a way next to the fiber flow, so that the outer edge zones of the fiber stream in particular contact the lower region of the guide plate, so that a caused by the so-called Coanda effect diffraction of the fiber stream is generated by the baffle.
  • the baffle advantageously has a free leading end associated with the depositing belt, which is formed with an inclination aligned with the guiding direction of the depositing belt.
  • the guide plate extends over the entire width of the fiber stream, so that all fibers within the fiber stream receive a deflection that is dependent on the guide plate and the fiber flow.
  • the baffle is preferably formed with a curvature in the flow direction of the fiber stream, which has a radius of curvature which is greater than half the distance between the deposit belt and the fiber exit of the discharge device.
  • the deflection means can also be advantageously formed by a shaped body which extends laterally to the fibers at a small distance above the storage belt on the side of the storage belt cooling the web.
  • the shaped body is held with its outer contour in such a way to the fiber stream, that enters through the Coanda effect entering deflection of the fiber stream and thus the fibers before storage.
  • round or elliptically shaped rods can be used as shaped bodies.
  • the position of the deflection in distance and height to the fiber flow can also be used to advantage if the distance between the fiber outlet and the trigger device and the deposit belt is adjustable by a height-adjustable trigger device.
  • Due to the gentle storage can be set very short distances between the fiber exit of the trigger and the deposit belt preferably. Thus distances ⁇ 500 mm or even ⁇ 300 mm are possible. It can be realized very short spin distances in a system. However, distances between the take-off device and the deposit belt of> 500 mm can be realized.
  • the fluid inlets of the guide channel are preferably connected to a compressed air source, by means of which compressed air with an overpressure of 0.5 to 5 bar can be produced.
  • the method according to the invention and the device according to the invention are distinguished by a high-speed deposition of the fiber, so that nonwoven production with high production speeds becomes possible.
  • the desired settings for the deflection of the fiber stream can be made. It is also possible to carry out the settings by means of controllable actuators which are automatically controlled, for example, by means of a control device according to specification of process or product parameters.
  • Fig. 1 and Fig. 2 a first embodiment of the device according to the invention for carrying out the method according to the invention for the storage of synthetic fibers to a nonwoven fabric is shown.
  • Fig. 1 the embodiment is schematically in a view and in Fig. 2 schematically illustrated in a cross section Unless a reference to one of the figures is made, the following description applies to both figures.
  • the exemplary embodiment has a take-off nozzle device 1, which is usually arranged below a spinning device
  • a take-off nozzle device 1 which is usually arranged below a spinning device
  • Such take-off nozzle devices are well known and, for example in the US 6,183,684 B1 explained in more detail. In that regard, reference is made to the cited document and mentions below only the essential components.
  • the trigger nozzle unit 1 has a central guide channel 2, which on an upper side of the trigger nozzle device 1 by a fiber inlet 3 and on the underside of the trigger nozzle device 1 is limited by a fiber exit 4.
  • the guide channel 2 is slit-shaped and extends substantially over the entire length of the cuboid extractor device 1.
  • On the longitudinal sides of the guide channel 2 fluid inlets 6.1 and 6.2 are formed, which open nozzle-shaped in the guide channel 2.
  • the fluid inlets 6.1 and 6.2 are connected to fluid chambers 7.1 and 7.2, which are connected via a fluid connection 5 with a fluid source, not shown here. Through the fluid source 5, the fluid chambers 7.1 and 7.2 each supplied with a conveying fluid via the fluid port, which has an overpressure relative to the atmosphere in the guide channel 2
  • the discharge nozzle device 1 is arranged at a short distance above a storage belt 8
  • the storage belt 8 has a bandwidth which extends over the entire length of the trigger nozzle device 1.
  • the storage belt 8 is preferably guided and driven as an endless belt over a plurality of conveyor rollers, so that the storage belt 8 moves continuously in a guide direction, which is indicated in the figures with an arrow.
  • Fig. 1 only one of the conveyor rollers is shown and designated by the reference numeral 9.
  • the storage belt 8 is designed to be permeable to air, wherein a suction device 10 is arranged on the underside of the storage belt 8 in a storage area formed vertically below the discharge nozzle device 1.
  • a deflection 13 is located just above the storage belt 8.
  • the deflection means 13 is formed by a shaped guide plate 14 which is held on the discharge side 17 of the storage belt 8.
  • the discharge side 17 the side of the storage belt 8 is here referred to relative to the discharge nozzle device 1, on which the fleece 12 is discharged in the guide direction.
  • the opposite side is referred to here as the feed side 21.
  • the baffle 14 is held with an upper end to a pivot axis 15 and can be adjusted via an actuator 16 relative to a vertically emerging from the fiber outlet 4 fiber stream 18.
  • the baffle 14 has a curvature which is determined approximately by a radius of curvature R.
  • the radius of curvature R is preferably selected in a size which is greater than half the distance between the nozzle device 1 and the storage belt 8.
  • Fig. 2 is the distance between the trigger nozzle device 1 and the storage belt 8 marked by the letter A.
  • the distance between the leading end 19 and the depositing belt 8 is selected such that no contact between the guide plate 14 and formed on the storage belt 8 fleece 12 is formed.
  • the leading end 19 is formed with an inclination in the guide direction of the storage belt 8.
  • the distance between the guide plate 14 and the fiber stream 18 generated by the discharge nozzle device 1 is dimensioned such that at least the edge zones of the fiber stream 18 can come into contact with the surface of the guide plate 14.
  • the contact area between the fiber stream 18 and the guide plate 14 can be changed by adjusting the guide plate 14 relative to the pivot axis 15.
  • the delivery nozzle device 1 is supplied with a delivery fluid.
  • a conveying fluid preferably a compressed air source of compressed air is used, which flow with an overpressure in the range of 0.5 to 5 bar preferably in a range of 1 to 3 bar pressure from the fluid chambers 7.1 and 7.2 via the fluid inlets 6.1 and 6.2 in the guide channel 2 ,
  • the fibers 11 threaded into the guide channel 2 via the fiber inlet 3 are continuously drawn off from a spinning device, not shown here.
  • the fibers are previously melt-spun from a polymer material in a row-like arrangement and subsequently cooled.
  • the fibers 11 are accelerated by the conveying fluid and blown out together through the fiber outlet 4 as a fiber stream 18.
  • the fiber stream 18, which is composed of the fibers and the conveying fluid is thereby blown vertically through the fiber outlet 4 in the direction of the storage belt 8.
  • the fiber stream 18 Shortly before impingement of the fiber stream 18 on the storage belt 8, the fiber stream 18 passes into the influence of the guide plate 14, wherein a deflection of the fiber stream 18 by the so-called Coanda effect occurs.
  • the fiber stream 18 conforms to the contour of the guide plate 14 and is deflected out of the vertical.
  • the fibers 11 thus strike the depositing belt 8 at an angle of ⁇ 90 °.
  • the angle of impact between the fibers 11 and the depositing belt 8 is in Fig. 2 characterized by the Greek letter a
  • deflections are effected, which allow fiber deposition with an angle of incidence of ⁇ 60 °.
  • the fibers 11 form on the surface of the storage belt 8, the fleece 12, which is continuously discharged from the storage belt 8 in the direction of the discharge side 17.
  • a gentle and fiber-sparing depositing of the fibers 11 to the fleece 12 is achieved even at high fiber speeds in the range from 3,500 m / min to 8,000 m / min. possible. There are thus high belt speeds and thus high production performance in the production of nonwovens feasible.
  • FIG. 3 a further embodiment of the device according to the invention for carrying out the method according to the invention is shown Fig. 3 is essentially identical to the one described above Embodiment, so that reference is made to the above description and only the differences are explained below.
  • a deflection 13 is arranged on the inlet side 21 within the free path between the trigger nozzle device 1 and the storage belt 8.
  • the deflection means 13 is in this case formed by an air flow generator 20, which has a substantially parallel to the fiber flow 18 extending blow opening 23.
  • the air flow generator 20 is assigned to the depositing belt 8 in such a way that a blowing stream emerging through the blowing opening 23 impinges the fiber flow 18 parallel to the depositing belt shortly before impact of the depositing belt 8 and leads to a deflection of the fibers in the guiding direction.
  • this is additionally a Verwirbelung the fibers produced 11 shortly before storage, so that certain nonwoven effects in the web 12 can be produced.
  • the intensity of the blow stream generated by the air flow generator 20 is variable, so that strong deflections with correspondingly flat angles of incidence are executable.
  • the settings can be selected depending on the fiber type and filament titer as well as the overpressure of the fluid flow.
  • the trigger nozzle device 1 is designed to be adjustable in height, so that the distance A can be changed to form the free path.
  • FIG. 4 a further embodiment of a device according to the invention is shown schematically in a cross-sectional view.
  • the embodiment is essentially identical to the aforementioned embodiments, so that reference is also made to the description made above and only the differences are explained below.
  • the deflection means 13 is formed by a shaped body 22.
  • the shaped body 22 is arranged on the discharge side 17 just above the storage belt 8 and extends laterally next to the fiber flow 18.
  • the shaped body 22 is held such that the outer edge zones of the fiber stream 18 at least in contact with the surface of the Shaped body 18 occur.
  • the molded body I8 has a round rod-shaped form. In this case, due to the Coanda effect, the fiber flow 18 is deflected on the surface of the shaped body 22, so that the fibers 11 impinge on the depositing belt with an angle of incidence ⁇ 90 °.
  • the molded body 22 is adjustably held in a machine frame, wherein both the distance to the storage belt 8 and the distance to the fiber stream 18 is variable.
  • the molded body 22 could also be an asymmetrical shape with a one-sided, the fiber stream 18 inclined bend. It is essential here that the edge zones of the fiber stream 18 make contact with the shaped body 22.
  • the in the Fig. 1 to 4 illustrated embodiments of the device according to the invention for carrying out the method according to the invention are exemplary in construction and arrangement of the deflection. It is essential here that the fibers are deflected in the vertical direction to the storage belt shortly before hitting the storage belt in the guide direction of the storage belt.
  • deflection means are suitable which bring about a stable and reproducible deflection of the fiber stream and thus uniform fiber deposition.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Claims (18)

  1. Procédé, destiné à déposer des fibres synthétiques en un non-tissé, dans le cas duquel après un filage à l'état fondu les fibres synthétiques sont retirées par un fluide convoyeur en un agencement en forme de rangées et sont accélérées dans un canal de guidage, procédé, dans lequel le fluide convoyeur et les fibres quittent le canal de guidage en tant que flux de fibres et dans lequel le flux de fibres est recueilli par une bande de dépôt qui est guidée transversalement par rapport au canal de guidage, caractérisé en ce qu'en cas de vitesses de fibres élevées dans la zone de 3.500 m/min à 8.000 m/min le flux de fibres, juste avant de rencontrer la bande de dépôt, est dévié au moyen d'un effet Coanda ou d'un flux d'air additionnel d'un coté en direction de guidage de la bande de dépôt de manière telle, que les fibres rencontrent la bande de dépôt suivant un angle < 90°.
  2. Procédé selon la revendication 1, caractérisé en ce que le flux de fibres est dévié de façon aussi forte que les fibres rencontrent la bande de dépôt suivant un angle de < 60°.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'intensité de la déviation du flux de fibres est modifiée en fonction d'un paramètre de processus ou d'un paramètre de produit.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la déviation du flux de fibres est effectuée par une tôle-guide, qui s'étend latéralement par rapport aux fibres dans la région entre le canal de guidage et la bande de dépôt.
  5. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la déviation du flux de fibres est effectuée par un flux d'air additionnel qui s'écoule transversalement par rapport aux fibres en direction de guidage de la bande de dépôt.
  6. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la déviation du flux de fibres est effectuée par une pièce formée qui s'étend avec un faible écart au dessus de la bande de dépôt latéralement à coté des fibres.
  7. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que le fluide convoyeur est introduit dans le canal de guidage sous l'effet d'une surpression dans la région de 0,5 - 5 bar.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce qu'après avoir quitté le canal de guidage jusqu'à la rencontre de la bande de dépôt le flux de fibre traverse une distance de trajet ≤ 500 mm, de préférence plus petite que 300 mm.
  9. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications 1 à 8 avec une installation de buses de délivrage (1) qui présente un canal de guidage (2) avec un orifice d'entrée (3) de fibres en forme d'une fente et un orifice de sortie (4) de fibres en forme de fente, plusieurs ouvertures d'entrée (6.1, 6.2) débouchant dans le canal de guidage, et étant connectées à une source de fluide et à une bande de dépôt pouvant être entraînée (8), la bande de dépôt (8) étant agencée avec un écart court (A) en dessous de l'orifice de sortie de fibres (4) de l'installation de buses de délivrage (1) et la bande de dépôt (8) pouvant être déplacée transversalement par rapport à l'orifice de sortie (4) de fibres dans une direction de guidage, caractérisé en ce qu'un moyen de déviation (13) étant associé à la bande de dépôt (8), grâce à laquelle un flux de fibres (18) sortant du canal de guidage (2) à de vitesses élevées de fibres dans la région de 3.500 m/min à 8.000 m/min est dévié par un effet Coanda ou par un flux d'air additionnel d'un coté en direction de guidage de la bande de dépôt (8) de manière telle, que les fibres (11) rencontrent la bande de dépôt (8) suivant un angle < 90°.
  10. Dispositif selon la revendication 9, caractérisé en ce que le moyen de déviation (13) est formé par un générateur de flux d'air (20), lequel génère un flux de soufflage dirigé transversalement au flux de fibres en direction de guidage de la bande de dépôt (8).
  11. Dispositif selon la revendication 9, caractérisé en ce que le moyen de déviation (13) est formé par une tôle-guide (14) qui s'étend de manière latérale par rapport aux fibres (11) dans la région entre le canal de guidage (2) et la bande de dépôt (8) sur le coté (17), évacuant vers le bas le non tissé (12).
  12. Dispositif selon la revendication11, caractérisé en ce que la tôle-guide (14) a une extrémité de guidage libre (19) associée à la bande de dépôt (8) laquelle extrémité de guidage est réalisée avec une inclinaison dirigée en direction de guidage de la bande de dépôt (8).
  13. Dispositif selon la revendication 11 ou 12, caractérisé en ce que la tôle-guide (14) a une courbure en direction d'écoulement du flux de fibres, qui est déterminée par un rayon de courbure (R) qui est plus grand que la moitié de l'écart (A) entre la bande de dépôt (8) et l'orifice de sortie des fibres (4) de l'installation de délivrage (1).
  14. Dispositif selon la revendication 9, caractérisé en ce que le moyen de déviation (13) est formé par une pièce formée (22), qui s'étend latéralement par rapport aux fibres (11) avec un faible écart au dessus de la bande de dépôt (8) sur le coté (17), évacuant vers le bas le non-tissé (12).
  15. Dispositif selon l'une des revendications 9 à 14, caractérisé en ce que la position du moyen de déviation (13), quant à l'écart et à la hauteur, est réalisée de manière à pouvoir être modifiée relativement par rapport au flux de fibres (18).
  16. Dispositif selon l'une des revendications 9 à 15, caractérisé en ce que l'écart (A) entre l'orifice de sortie (4) de l'installation de délivrage (1) et de la bande de dépôt (8) comporte < 500 mm, de préférence < 300 mm.
  17. Dispositif selon l'une des revendications 9 à 16, caractérisé en ce que pour ajuster l'écart (A) entre le refoulement des fibres (4) et la bande de dépôt (8) l'installation de délivrage (1) est réalisée de manière à être déplaçable en hauteur.
  18. Dispositif selon l'une des revendications 9 à 17, caractérisé en ce que les orifices d'entrée de fluide (6.1, 6.2) du canal de guidage (2) sont connectés avec une source d'air comprimé, grâce à laquelle un air comprimé, ayant une surpression de 0,5 - 5,0 bar, peut être généré.
EP06005679A 2006-03-20 2006-03-20 Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques Not-in-force EP1837429B1 (fr)

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EP1712668A1 (fr) * 2005-03-12 2006-10-18 Saurer GmbH &amp; Co. KG Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
FR2217459A1 (en) * 1973-02-15 1974-09-06 Vvb Tech Textilien Karl Webs of molten-spun filaments for non-woven fabrics - of uniform consistency and tensile strength both transversely and lengthways
JPS5947066B2 (ja) * 1976-03-30 1984-11-16 旭化成株式会社 連続フイラメントの送り出し装置
DE3740893A1 (de) 1987-04-25 1988-11-10 Reifenhaeuser Masch Spinnvliesanlage zur herstellung eines spinnvlieses aus synthetischem endlosfilament
US5366793A (en) * 1992-04-07 1994-11-22 Kimberly Clark Co Anisotropic nonwoven fibrous web
JPH07207564A (ja) * 1994-01-11 1995-08-08 New Oji Paper Co Ltd スパンボンド不織布の製造装置
US6183684B1 (en) 1994-12-15 2001-02-06 Ason Engineering, Ltd. Apparatus and method for producing non-woven webs with high filament velocity
US6132661A (en) * 1996-11-19 2000-10-17 Nippon Petrochemical Company, Limited Longitudinally stretched nonwoven fabric and method for producing the same
US6524521B1 (en) * 1999-08-30 2003-02-25 Nippon Petrochemicals Co., Ltd. Method of and apparatus for manufacturing longitudinally aligned nonwoven fabric
JP4495871B2 (ja) 2001-02-27 2010-07-07 新日本石油株式会社 横配列ウェブの製造方法および装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712668A1 (fr) * 2005-03-12 2006-10-18 Saurer GmbH &amp; Co. KG Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques

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