EP3495543B1 - Installation et procédé de fabrication d'un tissu non-tissé - Google Patents

Installation et procédé de fabrication d'un tissu non-tissé Download PDF

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Publication number
EP3495543B1
EP3495543B1 EP18201508.1A EP18201508A EP3495543B1 EP 3495543 B1 EP3495543 B1 EP 3495543B1 EP 18201508 A EP18201508 A EP 18201508A EP 3495543 B1 EP3495543 B1 EP 3495543B1
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EP
European Patent Office
Prior art keywords
discharge belt
belt
discharge
endless filaments
roll
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EP18201508.1A
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German (de)
English (en)
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EP3495543A1 (fr
Inventor
Thomas Weigert
Ullrich MÜNSTERMANN
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Truetzschler GmbH and Co KG
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Truetzschler GmbH and Co KG
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Publication of EP3495543A1 publication Critical patent/EP3495543A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
    • 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
    • D04H3/14—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 yarns or filaments produced by welding

Definitions

  • the present invention relates to a system and a method for producing a spunbonded web from endless filaments, which consist for example of thermoplastic material. Due to their quasi-endless length, continuous filaments differ from staple fibers, which have much shorter lengths of, for example, 10 to 60 mm.
  • nonwoven web which is typically produced by depositing the filaments on a deposit belt.
  • the tray is generally consolidated using a thermal calender. This creates nonwovens with good strength and low thickness. Heavier or more voluminous filament deposits are more difficult to solidify, since the energy input into the center of the product is limited in the time available and, in particular, is no longer sufficient for heating up to the vicinity of the melting point of the plastic. If heavier or more voluminous nonwovens are to be produced, other consolidation methods are expedient, in particular mechanical needling and hydraulic needling or thermal consolidation (preferably by means of hot air).
  • the EP 1408148B2 shows a spunbonding plant, in which the endless filaments are deposited from a spinning tower on a first storage belt. Immediately behind the storage of the endless filaments, suction boxes are arranged under the first storage belt, which hold the continuous filaments on the first storage belt. A first consolidation takes place by means of heated calender rolls. Using an aspirated roller, the continuous filaments are transferred to a second storage belt, on which the solidification takes place using water jets. At very high transport speeds of the spunbonded web of over 250 m / min, the calender rolls cannot transfer enough energy into the continuous filaments for pre-consolidation, since the dwell time in the contact area of the rolls is too short. A further disadvantage is the transfer of the filaments from the first to the second storage belt by means of a suction roller, since undesired warping can occur at the high speeds.
  • the WO02 / 055778 discloses a plant for the production of continuous filaments, which are conveyed from an upper to a lower storage belt.
  • the transfer of the continuous filaments between the belts is made possible by a deflecting roller, whereby it is not disclosed at what speed the continuous filaments on the belts are moved and how the tension in the continuous filaments is generated during the transfer from the upper to the lower belt.
  • a disadvantage of this prior art is the low operating speed of the system, since in particular the introduction of heat by means of calenders into the continuous filaments requires a predetermined energy density. With a higher working / transport speed of the continuous filaments, the calenders would have to be heated well above the melting point of the thermoplastic in order to transfer the energy in the shorter contact time between the rollers. Any slightest disturbance or irregularity at this point would result in undesired sticking of the continuous filaments, as a result of which the subsequent water jet consolidation would at least partially not achieve the desired effect. In other words, the water jet consolidation would have to be significantly oversized in order to evenly consolidate and structure the fleece, which in the event of malfunctions would already be pre-consolidated in places by means of bonding points. Another disadvantage is the introduction of water for pre-moistening, which has to be removed from the fleece in a further complex process step.
  • the object of the invention is the further development of a plant and a method for producing a spunbonded web from continuous filaments at high speeds.
  • the invention relates to a system for producing a spunbonded fabric, comprising a spinnerette with a diffuser for producing continuous filaments, with a first storage belt, which is designed to transport the continuous filaments and transfer them to a subsequent second storage belt, with the second Storage belt is arranged at least one device for the water jet consolidation of the continuous filaments to form a spunbonded fabric, the spunbonded fabric subsequently being consolidated and / or structured by means of at least one further waterjet bonded assembly.
  • the invention is characterized in that the first storage belt transports the continuous filaments dry and unconsolidated, a roller being arranged at the end of the first storage belt or at the beginning of the second storage belt, so that the continuous filaments are guided around the roller with a small wrap angle.
  • the continuous filaments Due to the high transport speed of the continuous filaments, in contrast to the prior art, no solidification, compacting or calendering of the continuous filaments takes place on the first storage belt.
  • the continuous filaments are thus unconsolidated and transported dry on the first deposit belt at a high speed of at least 250 m / min.
  • the system drives the continuous filaments on the first storage belt dry, which means that the continuous filaments are not sprayed or treated with water or another liquid, which can be disruptive for further treatment or reduce the friction of the continuous filaments on the first conveyor belt.
  • the continuous filaments are preferably transported on the storage belts at a speed of at least 250 m / min.
  • Very light spunbonded nonwovens can be produced at high speed.
  • the roller is designed to be permeable to air and can be suctioned. This allows the drag air carried at these high speeds to be extracted.
  • the storage belts can be operated at the same speed, or alternatively the second storage belt can be operated at a slightly higher speed.
  • the roller when the roller is arranged at the beginning of the second deposit belt, the roller must be drivable and be operated at a slightly higher peripheral speed than the transport speed of the second deposit belt.
  • the key is a slight pull or a wrap on the Apply endless filaments so that they can overcome the gusset between the storage belts without any significant sag.
  • the continuous filaments can be treated with a positive or negative distortion.
  • the wrap angle of the continuous filaments around the roller can be adjusted by a displaceable arrangement of the roller horizontally or parallel to one of the storage belts.
  • the system is preferably designed to accommodate a further component between the storage belts, so that, for example, a carded fleece can be introduced in order to be connected together on the second storage belt with the continuous filaments.
  • the process for producing a spunbonded nonwoven provides for producing continuous filaments in a spinnerette with a diffuser and depositing them on a first depositing belt, the first depositing belt transporting and transferring the endless filaments to a second depositing belt, the endless filaments on the second depositing belt forming a spunbonded nonwoven solidify by means of water jet consolidation and subsequently solidify and / or structure by means of at least one further water jet consolidation.
  • the method according to the invention is characterized in that the continuous filaments are transported dry and unconsolidated on the first storage belt, the continuous filaments at least partially wrapping around a roller which is arranged at the end of the first storage belt or at the beginning of the second storage belt around which To reduce sag of the continuous filaments in the gusset between the first and the second storage belt.
  • the transition from the first to the second storage belt is facilitated by the creation of a clamping point. Therefore, the detachment of the continuous filaments from the storage belt during the transition to the storage belt is promoted by the creation of a clamping point by means of the roller. The detachment of the spunbonded fabric from the deposit belt around the suction drum is also facilitated by the creation of the clamping point by means of the roller.
  • the transport speed of the continuous filaments is preferably at least 250 m / min, preferably at least 400 m / min.
  • the system is particularly suitable for light spunbonded nonwovens with a maximum grammage of 60 g / m 2 .
  • the lighter the spunbond, the higher the transport speed can be, for example with a basis weight of 15 g / m 2 from 250 m / min up to 1000 m / min.
  • Figure 1 shows in a first embodiment according to the invention a system 1 for producing a spunbonded fabric, in which a spinnerette with diffuser 2 produces endless filaments 3 and deposits them on a first storage belt 4.
  • the storage belt 4 is designed as an endless rotating belt that is guided around at least two, in this exemplary embodiment around four deflection rollers 4a, 4b, 4c, 4d, and is driven by at least one deflection roller.
  • a first sowing box 5, which is assigned to the spinnerette, is arranged below the storage belt 4 in the region of the point of impact of the continuous filaments 3 on the storage belt 4. In the transport direction of the endless filaments 3 there is another sowing box 6 below the deposit belt 4, with which the endless filaments 3 are held on the deposit belt 4 by means of suction.
  • the storage belt 4 has a large number of perforations through which air can be sucked through in sufficient quantity.
  • the system 1 drives the endless filaments 3 on the first storage belt 4 dry, that is to say that the endless filaments 3 are not sprayed or treated with water or another liquid.
  • no solidification, compacting or calendering of the continuous filaments 3 takes place on the first storage belt 4.
  • the continuous filaments 3 are thus unconsolidated and dry at a high speed of at least 250 m / min, preferably at least 400 m / min, transported on the first storage belt 4.
  • the first storage belt 4 is followed in the transport direction by a second storage belt 7, on which the continuous filaments 3 are subsequently solidified to form a spunbonded nonwoven 11.
  • the second storage belt 7 is also designed as an endless circulating belt which is guided around at least two, in this exemplary embodiment four, deflection rollers 7a, 7b, 7c, 7d and is driven by at least one deflection roller.
  • the storage belt 7 is also designed as a perforated air or water permeable belt. At the transfer point between the first and the second depositing belts 4, 7, the distance between the depositing belts 4, 7 is minimized so that a vacuumed transfer is not necessary. Due to the high transport speed of the endless filaments 3, the sag of the endless filaments 3 in the gusset between the deflection rollers 4b and 7a is very low.
  • a roller 8 is arranged in the region of the deflection roller 7a above the deposit belt 7 and exerts a limited pressure on the endless filaments 3. In contrast to a calender, the roller 8 is moved to the storage belt 7 on a nip. Because the storage belt 7 yields elastically, the endless filaments 3 are guided around the roller 8 with a small wrap angle, so that there is increased friction between the endless filaments 3 and the roller 8, which withstands a limited tensile load. So much tension can be built up to guide the endless filaments 3 over the gusset between the storage belts 4 and 7 without them sagging and at the same time detaching from the endless belt 4, since the dry driving style can lead to the gluing of endless filaments 3 and endless belt 4 .
  • the storage belt 7 with a slightly higher Speed is operated as the storage belt 4.
  • the speed difference can be up to 0.5%.
  • the roller 8 can be permeable to air or have a smooth closed jacket.
  • the roller 8 can also have a structured surface in order to increase the friction with the endless filaments 3.
  • the roller 8 can be rotating or driven. The pressure by the roller 8 on the endless filaments 3 and the storage belt 7, in conjunction with the high transport speed, reduces the low sag in the gusset between the first and the second storage belt 4, 7.
  • the roller 8 can be arranged so that it can be printed with the deflecting roller 7a or with the storage belt 7 exerts on the endless filaments 3 and this clamps slightly (with a defined gap). If the roller 8 is driven, a warpage of, for example, 2-5% of the continuous filaments 3 lying on top of one another can be set with the deposit belt 7 or the deflection roller 7a. Given the high transport speed of the continuous filaments 3, it can be advantageous to design and vacuum the roller 8 as an air-permeable roller, since this allows undesired entrained air flows to be derived. If both storage belts 4, 7 are operated at an identical speed, the roller 8 can be operated at a slightly higher speed than the storage belt 7. The peripheral speed can be up to 0.5% greater than the transport speed of the storage belt 7 the endless filaments 3 are pushed onto the storage belt 7, so that the sag of the endless filaments 3 in the gusset between the storage belts 4, 7 is reduced.
  • the continuous filaments 3 After the continuous filaments 3 have been transferred to the second deposit belt 7, the continuous filaments are first solidified to form a fleece 11 by means of a nozzle bar 9.
  • the nozzle bar can be operated at a low pressure of, for example, 10-40 bar, only to to achieve pre-consolidation.
  • a suction box 10 is arranged below the storage belt 7, with which the water of the nozzle bar 9 is sucked off through the storage belt 7.
  • the solidification carried out by the first nozzle bar 9 can advantageously be very light, so that structuring can take place simultaneously on the subsequent suction drum. If there is no subsequent structuring, the nozzle bar 9 can also be operated at a higher pressure of, for example, 40-400 bar.
  • the fleece 11 is conveyed from the storage belt 7 around a first suction drum 12, which is arranged above the storage belt 7. At least one further nozzle bar 13 applies a high pressure of 40-400 bar to the fleece 11 in order to give the fleece 11 sufficient strength and, if necessary, structuring.
  • the structuring is generally carried out by patterning the suction drum 12, by means of which a shell with a distinctive pattern can be drawn up. After a rotation of approximately 180 ° around the first suction drum 12, there is a further rotation around a second suction drum 14, on which at least one further nozzle bar 15 also solidifies the fleece at a high pressure of 40-400 bar and, if appropriate, finally structures it again.
  • a further treatment of the fleece 11 in a subsequent system for preparation, drying and / or winding is no longer shown in this view, but is part of the overall system concept.
  • the roller 8 can be arranged to be horizontally movable by means of slide strips. Since the storage belt 7 after the deflection roller 7a is vertically flexible due to its expansion, the gap between the storage belt 7 and the roller 8 can be varied by moving the roller 8 horizontally from the deflection roller 7a in the direction of the suction box 10, which reduces the wrap angle of the endless filaments 3 by Roller 8 changes and thus the associated frictional force.
  • a further nozzle bar 16 is arranged below the suction drum 12 and below the storage belt 7 in order to achieve a first compacting by the storage belt 7 and, if necessary, to assist detachment of the pre-consolidated fleece 11 from the storage belt 7.
  • a further improvement of the system 1 can be achieved in that at least one deflecting roller, in this example the deflecting roller 7a, is arranged displaceably in order to reduce the tension from the depositing belt 7 and thus to simplify the replacement of the depositing belts.
  • Both storage belts 4, 7 can be operated at an identical speed.
  • the roller 8 must be operated at a slightly higher peripheral speed than the storage belt 7.
  • the peripheral speed can be up to 0.5% greater than the transport speed of the storage belt 7.
  • the continuous filaments 3 are pushed onto the storage belt 7 so that the sag of the endless filaments 3 in the gusset between the storage belts 4, 7 is reduced.
  • the endless filaments 3 can also be stretched if the roller 8 is operated at a higher speed of 2-5%.
  • the roller 8 can be designed as a non-driven idling roller 8. Alternatively, it can also be driven in order to act on the continuous filaments 3 with a positive or negative delay of 2-3%.
  • the roller 8 is arranged in the end region of the deposit belt 4, in such a way that the roller interacts with the deflection roller 4b.
  • the roller 8 with the storage belt 4 a gap, whereby due to a small wrap angle, a frictional force acts on the endless filaments 3, so that in connection with the wrap of the endless filaments 3 around the suction drums 12, 14, a slight tensile stress acts on the endless filaments 3, so that they do not become hang the gusset between the storage straps 4 and 7.
  • the roller 8 can advantageously be designed as an air-permeable and vacuumed roller in order to remove the drag air from the system.
  • the storage belt 7 was modified and a further deflection roller 7e was inserted in order to create space for a further application in the area of the gusset, for example for a winding 17 for a carded fleece, in order to combine this with the continuous filaments on the second storage belt 7.
  • the deflection roller 7a is also arranged at least horizontally displaceable here.
  • the speed of the storage belts 4 and 7 can be identical in this exemplary embodiment or the speed of the storage belt 7 can be slightly above the speed of the storage belt 4.
  • the tension on the endless filaments 3 is either generated by the wrapping and thus friction with the roller 8, or by the higher speed of the deposit belt 7.
  • the roller cannot be driven and run in unison.
  • the roller 8 can be driven in order to set a positive or negative distortion of 2-5% with the deposit belt 4, so that either the roller 8 is driven faster or slower.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (20)

  1. Installation (1) pour la fabrication d'une nappe non-tissée, comportant une buse de filage avec un diffuseur (2) pour la fabrication de filaments sans fin (3), avec une première courroie de dépôt (4), laquelle est aménagée à transporter les filaments sans fin (3) et à les transférer à une deuxième courroie de dépôt (7) suivante, dans laquelle sur la deuxième courroie de dépôt (7) est agencé au moins un dispositif pour la consolidation par jets d'eau (9) des filaments sans fin (3) pour en faire une nappe non-tissée (11), dans laquelle par la suite la nappe non-tissée (11) est consolidée et/ou texturée au moyen d'au moins une autre consolidation par jets d'eau (13, 15), dans laquelle la première courroie de dépôt (4) transporte les filaments sans fin (3) de façon sèche et non-consolidée, dans laquelle un rouleau (8) est agencé au début de la deuxième courroie de dépôt (7) ou à la fin de la première courroie de dépôt (4), caractérisée en ce que les filaments sans fin sont guidés autour du rouleau (8) avec un petit angle d'enroulement jusqu'à concurrence de 45° pour réduire l'affaissement des filaments sans fin (3) dans le gousset entre la première et la deuxième courroie de dépôt (4, 7).
  2. Installation selon la revendication 1, caractérisée en ce que les courroies de dépôt (4, 7) transportent les filaments sans fin à une vitesse au moins de 250 m/min, de préférence au moins de 400 m/min.
  3. Installation selon la revendication 1, caractérisée en ce que le rouleau (8) est aménagé de façon à être perméable à l'air et aspirable.
  4. Installation selon la revendication 1, caractérisée en ce que les courroies de dépôt (4, 7) sont opérées à la même vitesse.
  5. Installation selon la revendication 1, caractérisée en ce que la deuxième courroie de dépôt (7) est opérée à une vitesse supérieure à celle de la première courroie de dépôt (4).
  6. Installation selon l'une des revendications précédentes, caractérisée en ce que le rouleau (8) est entraînable.
  7. Installation selon la revendication 6, caractérisée en ce qu'une différence de vitesse jusqu'à concurrence de 5 % est réglable entre la vitesse circonférentielle du rouleau (8) et la vitesse de transport de la courroie de dépôt (4) ou (7).
  8. Installation selon l'une des revendications précédentes, caractérisée en ce que, dans la région de la courroie de dépôt (7), est agencé au moins un rouleau d'aspiration (12) avec au moins une consolidation par jets d'eau, laquelle soulève la nappe non-tissée (11) de la courroie de dépôt (7) et continue à la transporter.
  9. Installation selon la revendication 8, caractérisée en ce que, dans la région du rouleau d'aspiration (12), en-dessous de la courroie de dépôt (7) est agencée une barre à buses (16), laquelle est aménagée à détacher la nappe non-tissée (11) de la courroie de dépôt (7).
  10. Installation selon l'une des revendications précédentes 1 à 7, caractérisée en ce que le rouleau (8) est aménagé à se déplacer horizontalement, respectivement parallèlement par rapport à la courroie de dépôt (4) ou (7).
  11. Installation selon l'une des revendications précédentes, caractérisée en ce que les courroies de dépôt (4, 7) sont aménagées comme courroies de dépôt circulantes sans fin, lesquelles sont respectivement guidées au moyen d'au moins deux poulies de renvoi, dans laquelle au moins une poulie de renvoi est aménagée de façon déplaçable.
  12. Installation selon l'une des revendications précédentes, caractérisée en ce que la région entre les courroies de dépôt (4, 7) est aménagée à accommoder un autre composant de l'installation.
  13. Méthode pour la fabrication d'une nappe non-tissée à partir de filaments sans fin, qui sont fabriqués dans une buse de filage avec un diffuseur et déposés sur une première courroie de dépôt (4), dans laquelle la première courroie de dépôt (4) transporte les filaments sans fin vers une deuxième courroie de dépôt (7) et les transfert à cette dernière, dans laquelle les filaments sans fin sont consolidés sur la deuxième courroie de dépôt (7) pour en faire une nappe non-tissée (11) au moyen de consolidation par jets d'eau (9) et par la suite sont consolidés et/ou texturés au moyen d'au moins une autre consolidation par jets d'eau (13, 15), dans laquelle les filaments sans fin sont transportés sur la première courroie de dépôt (4) de façon sèche et non-consolidée, caractérisée en ce que les filaments sans fin enroulent au moins partiellement un rouleau (8) jusqu'à concurrence de 45°, lequel est agencé à la fin de la première courroie de dépôt (4) ou en début de la deuxième courroie de dépôt (7) pour réduire l'affaissement des filaments sans fin (3) dans le gousset entre la première et la deuxième courroie de dépôt (4, 7).
  14. Méthode selon la revendication 13, caractérisée en ce que les filaments sans fin sont transportés à une vitesse au moins de 250 m/min, de préférence au moins de 400 m/min.
  15. Méthode selon la revendication 13, caractérisée en ce que le rouleau (8) est aménagé de façon à être perméable à l'air et est aspiré.
  16. Méthode selon la revendication 13, caractérisée en ce que les courroies de dépôt (4, 7) sont opérées à la même vitesse.
  17. Méthode selon la revendication 13, caractérisée en ce que la deuxième courroie de dépôt (7) est opérée à une vitesse supérieure à celle de la première courroie de dépôt (4).
  18. Méthode selon la revendication 13, caractérisée en ce que le rouleau est entraîné.
  19. Méthode selon la revendication 18, caractérisée en ce qu'une différence de vitesse jusqu'à concurrence de 5 % est réglable entre la vitesse circonférentielle du rouleau (8) et la vitesse de transport de la courroie de dépôt (4) ou (7).
  20. Méthode selon la revendication 13 à 19, caractérisée en ce que le rouleau (8) est déplaçable horizontalement, respectivement parallèlement par rapport à la courroie de dépôt (4) ou (7).
EP18201508.1A 2017-12-08 2018-10-19 Installation et procédé de fabrication d'un tissu non-tissé Active EP3495543B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017129300.0A DE102017129300A1 (de) 2017-12-08 2017-12-08 Anlage und Verfahren zur Erzeugung eines Spinnvlieses

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EP3495543A1 EP3495543A1 (fr) 2019-06-12
EP3495543B1 true EP3495543B1 (fr) 2020-04-08

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DE (1) DE102017129300A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202140884A (zh) * 2019-12-17 2021-11-01 奧地利商蘭仁股份有限公司 製造紡黏非織物的方法
EP4001488B1 (fr) * 2020-11-19 2024-04-24 Reifenhäuser GmbH & Co. KG Maschinenfabrik Dispositif de fabrication de tissus non tissés à partir de filaments continus
DE102021107902A1 (de) * 2021-03-29 2022-09-29 Andritz Küsters Gmbh Anlage zur Verfestigung mindestens einer nass- oder trockengelegten Faserlage zu einer Vliesbahn, mit einem Förderer, der ein umlaufendes Band mit einem oberen Trum umfasst, auf welches die mindestens eine Faserlage ablegbar und in einer Produktionsrichtung verlagerbar ist

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
EP1360357B2 (fr) * 2001-01-12 2010-06-09 Polymer Group, Inc. Hydroentremelage de filaments continus de polymere
FR2845698B1 (fr) 2002-10-11 2005-03-18 Rieter Perfojet Procede et installation de production d'un non-tisse ayant de bonnes proprietes de resistance a la traction
FR2861751B1 (fr) * 2003-10-31 2006-01-06 Rieter Perfojet Machine de production de nontisses de plusieurs qualites.
DE502007003585D1 (de) 2007-03-08 2010-06-10 Fleissner Gmbh Verfahren und Vorrichtung zur Herstellung eines Spinnvlieses

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EP3495543A1 (fr) 2019-06-12
DE102017129300A1 (de) 2019-06-13

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