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EP1228268A1 - Procede de filage par fusion - Google Patents

Procede de filage par fusion

Info

Publication number
EP1228268A1
EP1228268A1 EP00964056A EP00964056A EP1228268A1 EP 1228268 A1 EP1228268 A1 EP 1228268A1 EP 00964056 A EP00964056 A EP 00964056A EP 00964056 A EP00964056 A EP 00964056A EP 1228268 A1 EP1228268 A1 EP 1228268A1
Authority
EP
European Patent Office
Prior art keywords
cooling
filaments
cooling zone
zone
cooling medium
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.)
Granted
Application number
EP00964056A
Other languages
German (de)
English (en)
Other versions
EP1228268B1 (fr
Inventor
Klaus Schäfer
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
Barmag AG
Barmag Barmer Maschinenfabrik AG
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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP1228268A1 publication Critical patent/EP1228268A1/fr
Application granted granted Critical
Publication of EP1228268B1 publication Critical patent/EP1228268B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes

Definitions

  • the invention relates to a method for melt spinning a multifilament sheet from a polymer melt according to the preamble of claim 1.
  • the thread sheet is formed from a large number of filaments which are extruded through nozzle bores.
  • the coulter is withdrawn from the spinning zone by a pulling agent. After the filaments of the thread sheet have emerged from the nozzle bores, the thread sheet is cooled in a cooling zone until the filaments solidify.
  • blows are preferably used, as are known for example from DE 35 03 818.
  • a coolant is blown essentially radially against the thread sheet in a cooling shaft below the nozzle bores.
  • a stretching shaft is formed directly below the cooling shaft.
  • the stretching shaft has a Venturi nozzle-like deformation in order to generate an air flow accelerated to stretch the thread sheet.
  • the stretching shaft is connected to a vacuum source. In this process, the yarn sheet is cooled intensively so that the pulling force generated by the stretching does not lead to the filaments breaking.
  • the thread sheet is also cooled by a radially directed coolant flow, as is known, for example, from EP 0 536 497.
  • the filament sheet is cooled immediately after exiting the nozzle bores with a cooling air flow directed radially from the inside out.
  • the yarn sheet is cooled intensively within the cooling zone. This gives the filaments of the thread sheet a crystalline pre-orientation, which determines the subsequent drawing and thus the physical properties of the thread sheet.
  • An increase in the production speed in the known method thus inevitably leads to changed physical properties or, in the case of inadequate cooling, to filament breaks.
  • the invention is based on the finding that the solidification of the filaments of the thread family from the exit from the nozzle bores to solidification is determined by two mutually influencing effects. It is known that when a polymer melt cools, it starts to cool down from a certain point
  • Solidified temperature This process depends solely on the temperature and is referred to here as thermal crystallization.
  • melt-spinning a family of threads the family of threads is withdrawn from the spinneret. In this case, pulling forces act on the filaments of the thread sheet, which cause tension-induced crystallization in the filaments.
  • the invention now provides a method in which the filaments of the thread sheet are cooled in such a way that both effects can be influenced in order to achieve higher production speeds while maintaining good physical properties.
  • the filaments of the thread sheet are first pre-cooled in the cooling zone, which is referred to here as the pre-cooling zone, without solidification of the polymer melt.
  • the thread sheet is then guided directly into a second cooling zone, which is formed below the pre-cooling zone and in front of a take-off means and is referred to here as the after-cooling zone.
  • the filaments of the thread sheet are further cooled until they solidify under the action of a cooling medium flow directed in the thread course, the cooling medium flow having a predetermined flow rate for influencing the thread friction.
  • the withdrawal tension acting on the filaments can be influenced in such a way that the tension-induced crystallization takes place with a delay. Since the filaments of the filament coulter in the pre-cooling zone are essentially only solidified in the edge zones, no significant withdrawal tensions can be absorbed by the filaments. Thus, no significant stress-induced crystallization occurs in the pre-cooling zone, but only thermal crystallization.
  • the thread sheet can be spun out in a linear row arrangement or in a circular row arrangement from the nozzle bores of several or one spinneret.
  • the cooling medium flow is accelerated to influence the thread friction in an acceleration section within the post-cooling zone to the predetermined flow rate.
  • the acceleration path is preferably formed immediately before the solidification area of the filaments of the thread family.
  • the post-cooling in the post-cooling zone can thus be influenced and controlled independently of the pre-cooling in the pre-cooling zone.
  • the flow rate of the cooling medium flow before the solidification area of the filaments is at least equal to or somewhat greater than the running speed of the filaments.
  • the flow rate of the cooling medium flow differs from the running speed of the filaments preferably by a factor of 0.3 to 2.
  • the particularly advantageous method variant according to claim 4 is particularly suitable for producing threads with small, medium or large thread titers with a higher production speed and uniform physical properties.
  • the stress-induced crystallization is influenced under essentially constant conditions.
  • the pre-cooling of the filaments of the filament sheet after emerging from the nozzle bores within the cooling zone can be adjusted in its cooling effect in such a way that the position of the solidification area of the filaments of the filament sheet within the post-cooling zone can be kept within a predetermined target range.
  • the solidification of the filaments of the filament sheet in the post-cooling zone thus essentially always takes place at the same place, so that a uniform treatment of the filaments is guaranteed to influence the tension-induced crystallization.
  • the cooling effects acting through the cooling medium in the pre-cooling zone must be variable.
  • the filaments of the thread sheet must already have a certain stability, especially in the outer peripheral layers, in order to endure the cooling medium flow in the post-cooling zone without damage.
  • a particularly advantageous variant for controlling the cooling is provided by the development of the invention, in which the cooling medium is tempered before entering the pre-cooling zone.
  • the temperature of the cooling medium can be heated to a value preferably in the range from 20 ° C. to 300 ° C. before entering the pre-cooling zone.
  • the cooling medium is preheated to a high temperature by, for example, a heating device.
  • the thermal crystallization which begins immediately after emerging from the nozzle bores is thus influenced in such a way that the filaments of the thread sheet are not solidified before entering the post-cooling zone.
  • An advantageous tension treatment is thus possible by means of a cooling medium flow directed parallel to the thread sheet, which leads to the solidification of the filaments of the thread sheet in the desired area of the post-cooling zone.
  • the cooling medium is set to a lower temperature in the pre-cooling zone, so that the thermal crystallization is formed so far before entering the post-cooling zone that the filaments of the family of filaments have sufficient stability when the Have coolant flow.
  • a fan can be used, for example, by means of which the volume flow blown into the pre-cooling zone can be controlled.
  • the method according to the invention is independent of whether the cooling medium flow in the after-cooling zone is generated by a suction effect or by a blowing effect.
  • the process variant in which there is a suction flow in the post-cooling zone has the advantage that the thermal crystallization in the pre-cooling zone and the voltage-induced crystallization in the post-cooling zone can be influenced essentially independently of one another.
  • To generate a cooling medium flow by blowing action it is possible to blow the cooling medium into the pre-cooling zone and to lead it accordingly into the tension zone or to blow a cooling medium supplied below the pre-cooling zone directly into the after-cooling zone.
  • the method variant according to claim 10 is particularly advantageous.
  • the cooling medium flow is generated from the cooling medium emerging from the pre-cooling zone and a cooling medium supplied immediately before the inlet of the post-cooling zone.
  • the additionally supplied cooling medium ensures that the voltage-induced crystallization can also be set within wide limits and thus further optimization of the physical properties is possible.
  • the filaments in the precooling zone can also be precooled by an air stream blown into the precooling zone or by an air stream drawn into the precooling zone.
  • the method according to the invention is suitable for melt spinning a family of threads which, after the filaments have solidified, is deposited to form a spunbonded nonwoven.
  • the line of threads is pulled off the nozzle bores in a linear row arrangement and placed on a screen belt.
  • Extraction nozzles are preferably used as the extraction means.
  • the method is also particularly suitable for bringing together a family of threads after the filaments have solidified to form a tow which is placed in a jug for the production of staple fibers.
  • the thread sheet is preferably spun out of an annular nozzle in a circular row arrangement and passed through the pre-cooling zone and post-cooling zone. After exiting the post-cooling zone, the thread group becomes the tow merged.
  • the tow could also be cut or torn directly into staple fiber in order to then be pressed into a bale.
  • the thread sheet can be spun from a polymer melt based on polyester, polyamide or polypropylene.
  • Fig. 1 shows schematically an apparatus for performing the method according to the invention for producing a spunbonded fabric
  • Fig. 2 schematically shows another embodiment of an apparatus for performing the method for manufacturing a tow.
  • the device has a heated spinning head 1 which is connected to a melt feed (not shown here).
  • a heated spinning head 1 On the underside of the spinning head 1, a plurality of spinnerets 2 are arranged in rows in a spinning line.
  • the spinnerets 2 have a plurality of nozzle bores 3 on their undersides.
  • a pre-cooling shaft 8 is formed below the spinning head 1 and forms a pre-cooling zone 5 through which a thread sheet 10 is guided.
  • the precooling shaft 8 has a gas-permeable side wall on the opposite longitudinal sides 34 through which a cooling medium, preferably cooling air, is conducted into the pre-cooling zone 5.
  • the pre-cooling shaft 8 is closed at the ends of the spinning head 1 by transverse walls.
  • a post-cooling shaft 9 is arranged below the pre-cooling shaft 8.
  • a post-cooling zone 6 is formed in the post-cooling shaft 9 and is likewise passed through by the thread sheet.
  • the pre-cooling shaft 8 and the after-cooling shaft 9 are arranged in one plane, so that the thread sheet is guided through the pre-cooling zone 5 and the after-cooling zone 6 without deflection.
  • a suction device 11 is connected to the underside of the after-cooling shaft 9.
  • the suction device 11 has a suction shaft 12.1 and 12.2 on two sides, which are connected to at least one vacuum source (not shown here).
  • the side walls 35.1 and 35.2 in the longitudinal direction of the after-cooling shaft 9 are shaped with respect to one another in such a way that an acceleration path 7 is formed in the thread running direction with the closest distance between the side walls 35.1 and 35.2.
  • the side walls 35.1 and 35.2 of the after-cooling shaft 9 are arranged with a greater distance, preferably with a continuously increasing distance from one another.
  • the after-cooling shaft 9 is closed by transverse walls.
  • a draw-off means 14 is provided below the cooling device for pulling the thread sheet 10 out of the spinning zone.
  • the trigger means 14 is formed by a trigger nozzle 31.
  • the draw-off nozzle 31 has an injector 15 on the inlet side of the thread family, which is connected to a compressed air supply.
  • a fleece depositing device 16 is arranged below the extraction nozzle.
  • the fleece storage device 16 consists of a screen belt 17 which is guided over rollers 20.
  • the thread sheet 10 is deposited in the form of a spunbonded fabric 19 on the sieve belt 17.
  • a suction device 18 is arranged below the sieve belt 17 and receives the air flow emerging from the extraction nozzle 31. In the device shown in FIG. 1, a thermoplastic material is melted into a polymer melt and fed to the spinning head 1.
  • a large number of filaments 4 are extruded into a thread sheet 10 via the large number of nozzle bores 3 of the spinnerets 2.
  • the family of threads formed from the filaments is withdrawn from the withdrawal means 14.
  • the thread sheet passes through the pre-cooling zone 5 within the pre-cooling shaft 8 with increasing speed.
  • the thread sheet then enters the after-cooling shaft 9 and passes through the after-cooling zone 6.
  • a vacuum is generated in the after-cooling zone 2 by the action of a vacuum generator. Due to the negative pressure and due to a self-priming effect generated by the thread coulter movement, an air stream is sucked into the pre-cooling zone 5 from the outside in the pre-cooling zone 5.
  • the side walls 34.1 and 34.2 of the pre-cooling zone are gas-permeable.
  • the air flow leads to a pre-cooling of the filaments 4 of the thread sheet 10.
  • the movement of the thread sheet 10 and the effect of the negative pressure in the after-cooling shaft 9 leads the air flow into the after-cooling shaft 9.
  • a cooling medium flow is formed in the acceleration section 7, which flows in the running direction of the thread sheet 10.
  • the cooling medium flow is accelerated to a speed that is at least equal to or greater than the filament speed by coordinating the negative pressure and the distance between the side walls in the after-cooling shaft 9.
  • the thread sheet 10 is continuously cooled until the filaments 4 of the thread sheet 10 are completely solidified.
  • the area of solidification of the filaments 4 is adjusted by the air duct in such a way that the filaments solidify below or in the lower area of the acceleration path 7.
  • the family of filaments can be made from filaments with a single titer of 0.3 to 10 dpf, preferably 0.5 to 5 dpf.
  • the one generated in the acceleration section Cooling media flow is accelerated in relation to the filament speed to a flow rate of 0.3 to 2 times the filament speed.
  • the device shown in FIG. 1 for carrying out the method according to the invention is exemplary.
  • a heating device 30 is provided between the pre-cooling shaft 8 and the spinning head 1 in order to be able to set a delayed thermal crystallization. It is also possible to blow the cooling air into the pre-cooling shaft 8.
  • the main idea of the invention is that the solidification of the filaments of the thread group takes place only within the post-cooling zone in order to maintain the positive influence on the physical properties at increased production speeds.
  • the device has a spinning head 1 which is connected to a melt feed (not shown here).
  • An annular nozzle 21 is arranged on the underside of the spinning head 1.
  • the ring nozzle 21 has a plurality of nozzle bores 3, which are arranged in a ring.
  • a pre-cooling shaft 8 is arranged below the spinning head 1.
  • the pre-cooling shaft 8 is designed with a gas-permeable wall 33, which is arranged enveloping the annular nozzle 21.
  • the pre-cooling shaft 8 forms the pre-cooling zone 5 directly below the ring nozzle 21.
  • a blow 32 projects lancet-shaped from the underside of the spinning head 1 centrally to the ring nozzle 21 into the cooling zone 5.
  • a cooling medium is passed radially from the inside into the cooling zone 5 through the blowing 32.
  • a post-cooling shaft 9 is arranged in the spinning line below the pre-cooling shaft 8.
  • the after-cooling shaft 9 is preferably tubular, an acceleration path 7 with a narrowest cross section being formed in the after-cooling shaft 9 between the inlet side and the outlet side.
  • the After-cooling shaft 9 is formed with a flow cross-section that is preferably continuously increasing.
  • the after-cooling zone 6 is formed by the after-cooling shaft 9.
  • a suction device is provided below the after-cooling shaft 9, which generates a negative pressure in the after-cooling zone.
  • the suction device 11 has a vacuum source 22, which is connected to an outlet chamber 29 via a suction shaft 12.
  • the outlet chamber 29 is connected to the after-cooling shaft 9.
  • the outlet chamber 29 has an outlet 34.
  • a screen cylinder 28 is arranged coaxially with the after-cooling shaft 9.
  • the cooling device In the thread running direction, the cooling device is followed by a take-off means 14.
  • the trigger means 14 is formed from several godets 25 and 26.
  • a roller 24 is provided between the take-off godet 25 and the cooling device in order to bring together a family of threads to form a tow 23.
  • a can rest 27 is arranged downstream of the trigger means 14.
  • a polymer melt is extruded through the nozzle bores 3 of the ring nozzle 21 to form a thread sheet 10.
  • Thread cluster 10 is formed from individual filaments 4. The thread sheet 10 first enters the pre-cooling zone 5. In the pre-cooling zone 5, the thread sheet 10 first enters the pre-cooling zone 5. In the pre-cooling zone 5, the thread sheet 10 first enters the pre-cooling zone 5.
  • Filaments 4 of the thread sheet 10 are cooled by a cooling medium flow of the blowing 32.
  • the group of threads 10 arranged in a ring is acted upon radially from the inside to the outside by the cooling medium flow.
  • Coolant flow passes through the wall 33 radially from the outside inwards into the cooling zone.
  • the filaments 4 of the thread sheet 10 are in the
  • Pre-cooling zone 5 only cooled until the edge zones solidified.
  • Cooling the thread sheet 10 is guided through the after-cooling zone 6 of the after-cooling shaft 9.
  • the cooling medium introduced into the pre-cooling zone 5 sucked into the post-cooling zone 6.
  • a cooling medium flow is accelerated to a flow speed that is greater than or equal to the running speed of the thread sheet 10. It is achieved that the filaments 4 of the thread sheet 10 are supported in their movement.
  • the pull-off tensions acting on the thread sheet 10 by the pull-off means 14 only take effect with a delay. The voltage-induced crystallization will thus occur with a delay.
  • the pre-cooling and the after-cooling are set in such a way that the filaments 4 of the yarn sheet 10 preferably solidify below the acceleration path 7 or in the lower half of the acceleration path 7.
  • the thread sheet 10 leaves the cooling device through the outlet 34.
  • the accompanying cooling medium flow is previously removed by means of the outlet chamber.
  • the thread sheet 10 is brought together by the roller 24 to form a tow 23 and is guided by the extraction means 14 to a can tray 27.
  • the tow 23 is placed, for example, in a round can.
  • the device shown in Fig. 2 is exemplary. So it is possible that for the treatment of the tow several drafting devices or heating devices
  • Can rack are upstream or for post-treatment of the tow
  • Training of the cooling device exemplary.
  • the method is not limited to the fact that the cooling medium flow is caused by a negative pressure in the
  • Post-cooling zone 6 is generated. It is essential that a pressure drop between the
  • Pre-cooling zone 5 and the post-cooling zone 6 is present to the one
  • Cooling air is preferably used as the cooling medium.

Landscapes

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

Abstract

L'invention concerne un procédé pour le filage par fusion d'un faisceau (10) de plusieurs filaments à partir d'une matière fondue polymérique. Le faisceau (10) est formé d'une multitude de filaments (4) extrudés à travers des trous de filière (3) et levés sous l'effet d'une tension de levée par un organe de levée. Selon l'invention, le refroidissement du faisceau de filaments (10) se fait dans une zone de pré-refroidissement (5) et dans une zone de post-refroidissement (6) située en aval. Ce faisant, le refroidissement dans la zone de pré-refroidissement (5) et dans la zone de post-refroidissement (6) est ajusté de telle façon que le faisceau de filaments (10) est refroidi à l'intérieur de la zone de post-refroidissement (6) sous l'effet d'un courant de milieu réfrigérant orienté dans le sens du fil de sorte que les filaments (4) du faisceau (10) se solidifient dans une zone de solidification à l'intérieur de la zone de post-refroidissement (6).
EP00964056A 1999-09-07 2000-08-29 Procede de filage par fusion Expired - Lifetime EP1228268B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19942518 1999-09-07
DE19942518 1999-09-07
PCT/EP2000/008416 WO2001018288A1 (fr) 1999-09-07 2000-08-29 Procede de filage par fusion

Publications (2)

Publication Number Publication Date
EP1228268A1 true EP1228268A1 (fr) 2002-08-07
EP1228268B1 EP1228268B1 (fr) 2004-02-18

Family

ID=7920996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00964056A Expired - Lifetime EP1228268B1 (fr) 1999-09-07 2000-08-29 Procede de filage par fusion

Country Status (4)

Country Link
US (1) US6824717B2 (fr)
EP (1) EP1228268B1 (fr)
DE (1) DE50005349D1 (fr)
WO (1) WO2001018288A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1560952B1 (fr) * 2002-11-09 2008-10-01 Oerlikon Textile GmbH & Co. KG Procede et dispositif de filage par fusion et de refroidissement d'une pluralite de filaments synthetiques
US20050184429A1 (en) * 2002-11-09 2005-08-25 Saurer Gmbh & Co. Kg Method and apparatus for melt spinning and cooling a plurality of synthetic filaments
EP1467005A1 (fr) * 2003-04-12 2004-10-13 Saurer GmbH & Co. KG Procédé et dispositif pour le filage au fondu et refroidissement d'un faisceau de filaments
EP1629141B1 (fr) * 2003-05-20 2013-12-25 Hills, Inc. Appareil et procede permettant de reguler un flux d'air dans un systeme d'extrusion de fibres
WO2008087193A2 (fr) * 2007-01-19 2008-07-24 Oerlikon Textile Gmbh & Co. Kg Appareil et procédé pour déposer des fibres synthétiques et former une bande non tissée
WO2009012916A2 (fr) * 2007-07-21 2009-01-29 Diolen Industrial Fibers B.V. Procédé de filage
JP5925657B2 (ja) * 2012-10-03 2016-05-25 Ｔｍｔマシナリー株式会社 溶融紡糸装置
EP2912222B1 (fr) * 2012-10-27 2017-03-29 Oerlikon Textile GmbH & Co. KG Appareil de production de non-tissé
US9410270B2 (en) 2014-08-22 2016-08-09 Nike, Inc. Thread structure composition and method of making
US9889606B2 (en) 2015-11-09 2018-02-13 Nike, Inc. Tack and drag printing
FR3046093B1 (fr) 2015-12-23 2018-01-26 Compagnie Generale Des Etablissements Michelin Atelier de fabrication additive
FR3046147B1 (fr) 2015-12-23 2019-07-26 Compagnie Generale Des Etablissements Michelin Dispositif de convoyage d’ensembles container/plateau de fabrication additive
CN112853515B (zh) * 2020-12-31 2022-04-15 江苏恒科新材料有限公司 一种轻量吸汗速干仿醋酸聚酯纤维及其制备方法
CN112760729B (zh) * 2020-12-31 2022-04-15 江苏恒科新材料有限公司 一种熔融纺丝基态冷却装置
CN117051486B (zh) * 2023-08-25 2025-07-11 江苏恒力化纤股份有限公司 一种高模低缩丝生产方法

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Publication number Priority date Publication date Assignee Title
DE3503818C1 (de) 1985-02-05 1986-04-30 Reifenhäuser GmbH & Co Maschinenfabrik, 5210 Troisdorf Vorrichtung zum Verstrecken von Monofilfadenbuendeln
US5178814A (en) 1991-08-09 1993-01-12 The Bouligny Company Quenching method and apparatus
US5976431A (en) 1993-12-03 1999-11-02 Ronald Mears Melt spinning process to produce filaments
TW268054B (fr) * 1993-12-03 1996-01-11 Rieter Automatik Gmbh
TW476818B (en) * 1998-02-21 2002-02-21 Barmag Barmer Maschf Method and apparatus for spinning a multifilament yarn
JP2002519520A (ja) * 1998-06-22 2002-07-02 バルマーク アクチエンゲゼルシヤフト 合成糸を紡績するための紡績装置
WO2000005439A1 (fr) * 1998-07-23 2000-02-03 Barmag Ag Dispositif et procede permettant de filer un fil synthetique
EP1079008A1 (fr) * 1999-08-26 2001-02-28 B a r m a g AG Procédé et dispositif pour le filage d'un fil multifilament

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Title
See references of WO0118288A1 *

Also Published As

Publication number Publication date
WO2001018288A1 (fr) 2001-03-15
EP1228268B1 (fr) 2004-02-18
US20020121724A1 (en) 2002-09-05
DE50005349D1 (de) 2004-03-25
US6824717B2 (en) 2004-11-30

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