EP1712668A1 - 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
EP1712668A1
EP1712668A1 EP06004961A EP06004961A EP1712668A1 EP 1712668 A1 EP1712668 A1 EP 1712668A1 EP 06004961 A EP06004961 A EP 06004961A EP 06004961 A EP06004961 A EP 06004961A EP 1712668 A1 EP1712668 A1 EP 1712668A1
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EP
European Patent Office
Prior art keywords
belt
fiber
fibers
guide channel
depositing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06004961A
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German (de)
English (en)
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
Original Assignee
Saurer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1712668A1 publication Critical patent/EP1712668A1/fr
Withdrawn legal-status Critical Current

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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
    • D04H3/16—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
    • 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

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 drive high production speeds, the filament strands speeds of up to 8,000 m / min. reachable.
  • the fiber flow produced by the exhaust nozzle means coincides with relative high energy on the surface of the storage belt. There is a risk that individual fibers lead to entanglements on the surface of the storage belt.
  • 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 method according to the invention in that the fiber flow is deflected on one side in the guide direction of the storage belt immediately before hitting the storage belt so 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 provided in that the depositing belt is associated with a deflection, by which an emerging from the guide channel fiber stream is deflected just before hitting the storage tape on one side in the guide direction of the storage belt such that the fibers in one Angle of ⁇ 90 ° impinge on the storage belt.
  • 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 deposit belt, such as the guide speed of the deposit 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 makes it possible to produce a very narrow deflection acting on the fiber stream, 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, but preferably set ⁇ 300 mm. 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. It can be so very uniform reproducible fiber deposits to form a fleece perform. Even at high fiber speeds, entanglements of individual fibers with the deposit belt can be avoided. At flat angles of incidence of the fiber, 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
  • an additional turbulence of the fibers can be generated shortly before deposition, so that special nonwoven effects can be produced.
  • 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 storage 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 device according to the invention change the position of the deflection in distance and height to the fiber flow.
  • a change in position of the deflection means 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 generated.
  • FIGS. 1 and 2 show a first exemplary embodiment of the device according to the invention for carrying out the method according to the invention for depositing synthetic fibers into a nonwoven fabric.
  • Fig. 1 the embodiment is shown schematically in a view and in Fig. 2 schematically in a cross section.
  • Fig. 1 the embodiment is shown schematically in a view and in Fig. 2 schematically in a cross section.
  • 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 exhaust 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. In 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. In Fig. 2, the distance between the trigger nozzle device 1 and the storage belt 8 is 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 flow 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 incidence between the fibers 11 and the depositing belt 8 is indicated in Fig. 2 by the Greek letter ⁇ .
  • deflections can be effected which permit a fiber deposition with an angle of incidence of ⁇ 60 °.
  • FIG. 3 shows a further exemplary embodiment of the device according to the invention for carrying out the method according to the invention.
  • the embodiment of Fig. 3 is substantially identical to that 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 exiting through the blowing opening parallel to the depositing belt strikes the fiber stream 18 shortly before the depositing belt 8 impinges and leads to a deflection of the fibers in the guiding direction.
  • a turbulence of the fibers 11 is generated 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 shaped body 18 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 exemplary embodiments of the device according to the invention for carrying out the method according to the invention shown in FIGS. 1 to 4 are exemplary in the construction and arrangement of the deflection means. 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)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP06004961A 2005-03-12 2006-03-10 Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques Withdrawn EP1712668A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005011472 2005-03-12

Publications (1)

Publication Number Publication Date
EP1712668A1 true EP1712668A1 (fr) 2006-10-18

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Country Status (3)

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US (1) US7798795B2 (fr)
EP (1) EP1712668A1 (fr)
CN (1) CN1831229A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837429B1 (fr) * 2006-03-20 2012-01-11 Oerlikon Textile GmbH & Co. KG Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques
EP2699720A2 (fr) * 2011-04-06 2014-02-26 3M Innovative Properties Company Utilisation de dispositifs à effets coanda pour produire des films de fusion-soufflage avec uniformité améliorée d'un côté à l'autre

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CN101535537B (zh) * 2006-11-10 2011-01-26 欧瑞康纺织有限及两合公司 用于熔融纺制和冷却合成单丝的方法及装置
EP2111487A2 (fr) * 2007-01-19 2009-10-28 Oerlikon Textile GmbH & Co. KG Appareil et procédé pour déposer des fibres synthétiques et former une bande non tissée
DE602008005561D1 (de) * 2007-01-31 2011-05-05 Oerlikon Textile Gmbh & Co Kg Verfahren und vorrichtung zur ansaugung und ablagerung mehrerer fasern zur formung eines vliesstoffs
DE102007050592A1 (de) * 2007-10-23 2009-04-30 Rieter Automatik Gmbh Stranggießvorrichtung zur Erzeugung von Granulatkörnern aus Kunststoffmaterial und Verfahren zu deren Betrieb
JP5698509B2 (ja) * 2010-12-06 2015-04-08 トップテック・カンパニー・リミテッドＴＯＰＴＥＣ Ｃｏ．， Ｌｔｄ． ナノ繊維製造装置
KR20130111591A (ko) * 2010-12-06 2013-10-10 미쓰이 가가쿠 가부시키가이샤 멜트블로운 부직포, 그의 제조 방법 및 장치
PL2907909T3 (pl) * 2014-02-17 2018-01-31 Reifenhaeuser Masch Urządzenie do ciągłego wytwarzania wstęgi włókniny typu spunbond
DE102016107811A1 (de) * 2016-04-27 2017-11-02 AstenJohnson PGmbH Industrielles Gewebe, insbesondere Transportband
FR3089851B1 (fr) * 2018-12-12 2020-12-18 Addup Chambre de fabrication pour une machine de fabrication additive
JP7413803B2 (ja) 2020-01-31 2024-01-16 王子ホールディングス株式会社 不織布の製造装置
JP7413802B2 (ja) 2020-01-31 2024-01-16 王子ホールディングス株式会社 不織布の製造装置

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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
JPS52118069A (en) * 1976-03-30 1977-10-04 Asahi Chemical Ind Let off apparatus for continuous filament
DE3740893A1 (de) 1987-04-25 1988-11-10 Reifenhaeuser Masch Spinnvliesanlage zur herstellung eines spinnvlieses aus synthetischem endlosfilament
EP0564784A1 (fr) * 1992-04-07 1993-10-13 Kimberly-Clark Corporation Tissu non-tissé fibreux anisotropique
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
EP0843036A1 (fr) * 1996-11-19 1998-05-20 Nippon Petrochemicals Co., Ltd. Etoffe non-tissée étirée longitudinalement et méthode de fabrication
US6183684B1 (en) 1994-12-15 2001-02-06 Ason Engineering, Ltd. Apparatus and method for producing non-woven webs with high filament velocity
EP1081262A1 (fr) * 1999-08-30 2001-03-07 Nippon Petrochemicals Company, Limited Procédé et dispositif pour la production d'un non-tissé aligné de manière longitudinale
US20020158362A1 (en) 2001-02-27 2002-10-31 Nippon Petrochemicals , Co., Ltd. Method of and apparatus for manufacturing a web having filaments aligned in a transverse direction

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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
JPS52118069A (en) * 1976-03-30 1977-10-04 Asahi Chemical Ind Let off apparatus for continuous filament
DE3740893A1 (de) 1987-04-25 1988-11-10 Reifenhaeuser Masch Spinnvliesanlage zur herstellung eines spinnvlieses aus synthetischem endlosfilament
EP0564784A1 (fr) * 1992-04-07 1993-10-13 Kimberly-Clark Corporation Tissu non-tissé fibreux anisotropique
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
EP0843036A1 (fr) * 1996-11-19 1998-05-20 Nippon Petrochemicals Co., Ltd. Etoffe non-tissée étirée longitudinalement et méthode de fabrication
EP1081262A1 (fr) * 1999-08-30 2001-03-07 Nippon Petrochemicals Company, Limited Procédé et dispositif pour la production d'un non-tissé aligné de manière longitudinale
US20020158362A1 (en) 2001-02-27 2002-10-31 Nippon Petrochemicals , Co., Ltd. Method of and apparatus for manufacturing a web having filaments aligned in a transverse direction

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Title
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PATENT ABSTRACTS OF JAPAN vol. 1995, no. 11 26 December 1995 (1995-12-26) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1837429B1 (fr) * 2006-03-20 2012-01-11 Oerlikon Textile GmbH & Co. KG Procédé et dispositif de fabrication d'un tissu non tissé par déposition de fibres synthétiques
EP2699720A2 (fr) * 2011-04-06 2014-02-26 3M Innovative Properties Company Utilisation de dispositifs à effets coanda pour produire des films de fusion-soufflage avec uniformité améliorée d'un côté à l'autre
EP2699720A4 (fr) * 2011-04-06 2014-11-05 3M Innovative Properties Co Utilisation de dispositifs à effets coanda pour produire des films de fusion-soufflage avec uniformité améliorée d'un côté à l'autre

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US20060202383A1 (en) 2006-09-14
CN1831229A (zh) 2006-09-13
US7798795B2 (en) 2010-09-21

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