EP1456441B1 - Procede et dispositif pour produire un fil lisse a faible retrait - Google Patents

Procede et dispositif pour produire un fil lisse a faible retrait Download PDF

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Publication number
EP1456441B1
EP1456441B1 EP02735329A EP02735329A EP1456441B1 EP 1456441 B1 EP1456441 B1 EP 1456441B1 EP 02735329 A EP02735329 A EP 02735329A EP 02735329 A EP02735329 A EP 02735329A EP 1456441 B1 EP1456441 B1 EP 1456441B1
Authority
EP
European Patent Office
Prior art keywords
yarn
plug
relaxation
thread
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.)
Expired - Lifetime
Application number
EP02735329A
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German (de)
English (en)
Other versions
EP1456441A2 (fr
Inventor
Stefan Becker
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
Oerlikon Textile 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.)
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Publication date
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Publication of EP1456441A2 publication Critical patent/EP1456441A2/fr
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Publication of EP1456441B1 publication Critical patent/EP1456441B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/125—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including means for monitoring or controlling yarn processing
    • 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/127—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes including drawing or stretching on the same machine

Definitions

  • the invention relates to a method for producing a low-shrink synthetic plain yarn according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 10.
  • high tenacity smooth yarns used in the manufacture of PVC coated tarpaulins, conveyor belts, or V-belts are required to have little shrinkage later during heat processing.
  • the invention is characterized in that even at relatively high yarn speeds a Relaxier awareness with long residence times is possible.
  • the mulitifile thread is first stretched after melt spinning.
  • the thread is conveyed under the action of heat in the stuffer box and compressed there.
  • the plug is conveyed without tension through the relaxation device. Since the plug has a significantly larger diameter than the thread, the speed of stuffing is orders of magnitude lower than the feeding speed of the thread because of the continuity condition.
  • relatively high residence times can be achieved under high temperature and in a tension-free state.
  • the plain yarn Upon exiting the relaxation device, the plain yarn is pulled out of the plug under tension.
  • the yarn withdrawn here in the hot state from the relaxation and further processed with such high thread tension that no crimping remains in the yarn and thus a typical plain yarn is present.
  • polyester can be produced even at relatively low withdrawal voltage from the plug a plain yarn.
  • all polyester types are considered to be particularly suitable.
  • a hot medium is preferably used to convey the thread, which is guided by means of a delivery nozzle together with the thread in the stuffer box.
  • the medium can be formed from a hot air or a hot steam.
  • a process variant of the method according to the invention provides once again a post-stretching after relaxation. As a result, a latent residual crimp possibly still remaining in the yarn is broken down.
  • the step of pulling the plug apart is supplemented and secured by additional method steps. Due to fluctuations in yarn or process parameters, different sizes of incoming and outgoing yarn mass flows can occur. This is to the effect that the length of the plug may possibly increase or decrease continuously. Therefore, in this variant of the method, the position of the stopper end is sensed and intervened in a correcting manner to the temperature of the medium.
  • the speed of the godet pulling off the thread is acted upon alternatively or additionally. By this intervention, an immediate effect on the stopper length is achieved.
  • Characteristic of the invention is that the yarn speed in the yarn path behind the relaxation is less than the yarn speed in the yarn path before the relaxation.
  • the winding speed is again slightly higher than the thread speed behind the relaxation device. This results for the invention that the winding device is operated at a winding speed which is more than 85% of the peripheral speed of the last godet before the relaxation.
  • the method according to the invention can also be used for the production of 8 / ionofilaments, that is to say threads which consist only of one thick filament.
  • An apparatus for carrying out the method according to the invention consists of a spinning device in which the filaments are melt-spun, a Verstreclc featured in which the thread is stretched into a high-strength thread, a compression chamber as relaxation and a winding device.
  • the stuffer box is designed so that form as few loops and bows in the deposited filaments when upsetting the thread.
  • Essential here is the possibility that the tempered thread is guided stress-free in the stuffer box as a plug for a long residence time as long as possible, so that a very low-shrinkage smooth yarn is present after dissolution of the plug.
  • a Nachverstreckung is provided behind the relaxation, which raises the thread tension slightly to smooth the smooth yarn behind the stuffer box again.
  • this Nachverstreckungs is formed from a pair of godets, which cooperates with the winding device.
  • two Galettenduos be used, the second pair of godets is operated at a slightly higher speed, so that a yarn tension is built up.
  • godets with overflow rollers can also be used.
  • the relaxation device preferably has a delivery nozzle which is connected to a medium source and is acted upon by a hot medium.
  • the thread can thus be heated, for example, by hot air or hot steam and promote.
  • a first embodiment of the device according to the invention is shown schematically, to which the inventive method is applied.
  • the device has a spinning device which is formed by a spinning head 1 and a plurality of spinning nozzles 15.
  • the spinning head 1 is connected by a melt inlet 29 with a melt source, not shown here, for example, with an extruder.
  • a plurality of spinnerets 15 are mounted, each containing a plurality of spinneret holes, through which each a filament bundle 2 is extruded.
  • four spinnerets 1 are shown by way of example.
  • the filament bundle 2 is cooled after extrusion by a cooling air 3, wetted in a preparation device 4 with a preparation and combined to form a thread 5.
  • the yarn 5 After the yarn 5 is formed, it is first pulled off a godet 6, which cooperates with an overflow roller 25. It is common that on such spinning plants several threads are made in a parallel process and are treated in parallel on the same godets. In the following description, the devices of the device and the method for simplifying a thread will be described.
  • the thread 5 After the godet 6 of the thread 5 is guided to a drawing device, which is formed by several Galettenduos 7.1, 7.2 and 7.3. In this case, the thread 5 is first stretched between two heated godet duos 7.1 and 7.2 in a first draw zone 8.1 and then between two heated godet ducks 7.2 and 7.3 in a second draw zone 8.2. After this treatment, the thread 5 has reached a high strength. He has, however, the desire to shrink under the influence of temperature. This is especially in the cases mentioned where the threads in the subsequent processing with hot coating materials be sheathed, undesirable. Therefore, the thread 5 is guided in a subsequent relaxation zone 16 with a relaxation device 9. Under temperature and in a tension-free state, the thread 5 in the relaxation device 9 is given the opportunity to relax, ie to reduce its shrinkage tendency. The thread shortens, depending on polymer and process parameters, by about 13%.
  • the thread 5 is upset within the relaxation device 9, which is described in detail in Figure 2, to a stopper.
  • the relaxation device 9 which is described in detail in Figure 2, to a stopper.
  • a NachverSCHincardi 21 is provided, which is formed in this embodiment by another Galettendo 7.4.
  • the plain yarn 22 is wound by means of a winding device 10 to form a coil 26. Since, after the relaxation device 9, in particular between Galettendo 7.4 and winding device 10, a higher yarn tension level prevails, any curl which may have remained behind in the yarn is reduced. This process is referred to in this context as Nachverstreckung.
  • the Nachverraceinides 21 could also be formed by a godet with an overflow roller. For re-stretching then act the godet and the Aufspulautoimmune together.
  • FIG. 2 shows in section a possible embodiment of a relaxation device 9 with the aid of which the method according to the invention can be realized.
  • the relaxation device 9 has a delivery nozzle 17 to which a heated medium 18 is supplied via a line 28.
  • the medium 18, which has been previously heated by heater 13, is passed into a thread channel 27 in order to convey the thread 5.
  • the thread channel 27 opens into a stuffer box 19 of the Relaxing device 9.
  • the thread 5 is guided to a stopper 20.
  • the thread loops which leads to a congestion and consequently to a compression, so that from the Faden5 the plug 20 is formed, which is slowly conveyed through the stuffer box 19 of the relaxation device 9.
  • a hot fluid such as hot air or steam is used as the conveying medium 18 to provide the thread with the temperature required for relaxation.
  • a hot fluid such as hot air or steam is used as the conveying medium 18 to provide the thread with the temperature required for relaxation.
  • a guide portion 23 of the stuffer box 19 a plurality of slots are introduced, through which the medium is discharged again.
  • the plug 20 then leaves via the outlet opening 24, the relaxation device 9 and is dissolved into the plain yarn 22.
  • the plain yarn 22 After leaving the relaxation device, the plain yarn 22, since it is then further promoted from the godet duo 7.4 shown in Figure 1 again at high speed, pulled out of the plug 20. Due to the high acceleration occurring occur inertial forces that cause tensile forces in the yarn and sufficiently stabilize the yarn. In this case, the speed at which the yarn is withdrawn, must be adjusted in such a way that the relaxation mass per unit time supplied yarn mass is identical to the discharged yarn mass.
  • FIG. 3 Another embodiment of the relaxation device 9 is shown, which would be used for example in a device according to Fig. 1 and which has a control of the plug formation.
  • You relaxation facility 9 is constructed substantially identical to the embodiment of FIG. 2, so that only the differences are listed below.
  • a sensor 11 is provided, which senses a plug growth or a plug fading.
  • the signaled value of the sensor 11 is compared in a comparator 30 with a desired value and supplied to a controller 12 in deviation.
  • the regulator 12 is connected to a heater 13 which heats the medium 18 supplied to the delivery nozzle 17. The heating of the medium 18 can thus be corrected by way of the regulator 12.
  • the controller 12 is also coupled to a godet drive 14 which drives the godet duo 7.4 Nachverskeinides 21. In addition, the rotational speed of the godet drive 7.4 driving the godet drive 14 can be corrected accordingly.
  • the relaxation device 9 shown in FIG. 3 can only be used in conjunction with a temperature control of the pumped medium or only with a speed control of the godet hood.
  • any relaxation device could be used in the apparatus of FIG. 1, in which the thread is guided by means of a conveying means within a stuffer box to a stopper and heated.
  • the thread By the Aufstauchung the thread can be sufficient even at high Fadengeschwindiglceiten To reach residence times for the relaxation of the thread.
  • the compression of the thread is preferably carried out with a low stuffing density in order to obtain a complete dissolution of the loops and loops in the filaments upon dissolution of the plug, so that after the dissolution of the yarn contains no crimp more.

Claims (14)

  1. Procédé destiné à la fabrication d'un fil synthétique lisse à haute résistance, à faible retrait, constitué des étapes :
    1.1 filage à l'état fondu d'une multiplicité de filaments à partir d'un polymère liquéfié fondu ;
    1.2 refroidissement et regroupement des filaments en un fil;
    1.3 étirage du fil ;
    1.4 refoulement du fil en un bouchon, sous alimentation en chaleur afin d'obtenir une température accrue, nécessaire pour la relaxation ;
    1.5 avancer le bouchon sous la température accrue ;
    1.6 tirer le bouchon sous une tension pour obtenir le fil lisse, également sous température accrue
    1.7 et enrouler le fil lisse en une bobine.
  2. Procédé selon la revendication 1, caractérisé en ce que pour le filage des filaments à l'état fondu le polymère liquéfié fondu est extrudé d'un polyester.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le refoulement du fil en un bouchon est effectué à l'aide d'un milieu, qui guide le fil pour la formation du bouchon.
  4. Procédé selon la revendication 3, caractérisé en ce que le milieu consiste en de l'air chaud ou en une vapeur chaude.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'après le tirage du bouchon le fil lisse est soumis à un étirage postérieur.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que lors du tirage du fil la position de l'extrémité du bouchon est détectée et en ce que la température du milieu est réglée en fonction de la position de l'extrémité du bouchon.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que lors du tirage du fil la position de l'extrémité du bouchon est détectée et en ce que la vitesse de retirage du fil lisse est réglée du bouchon en fonction de la position de l'extrémité du bouchon.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce qu'avant d'être refoulé le fil est guidé par une galette et en ce que la relation entre la vitesse de bobinage pour embobiner le fil lisse et la vitesse circonférentielle de la galette est plus grande que 0,85 à 1.
  9. Procédé selon l'une des revendications précédentes, caractérisé en ce que le fil est formé d'un seul filament.
  10. Dispositif destiné à la fabrication d'un fil lisse à haute résistance, à faible retrait, étant constitué d'un dispositif de filage (1 ; 15), d'un dispositif d'étirage (7.1-7.3), d'un dispositif de relaxation (9) et d'un dispositif d'embobinage (10), caractérisé en ce que le dispositif de relaxation (9) a une chambre à refoulement (19), dans laquelle un fil (5) est refoulé en un bouchon (20) à une température accrue, qui est nécessaire pour la relaxation.
  11. Dispositif selon la revendication 10, caractérisé en ce qu'un dispositif d'étirage postérieur (21) agencé en aval du dispositif de relaxation (9), est prévu pour retirer et pour étirer le fil lisse (22).
  12. Dispositif selon la revendication 11, caractérisé en ce que le dispositif d'étirage postérieur (21) est formé d'au moins un duo de galettes (7.4) ou d'au moins une galette avec un rouleau de guidage, qui coopère avec le dispositif d'embobinage (10).
  13. Dispositif selon l'une des revendications 10 à 12, caractérisé en ce que le dispositif de relaxation (9) dispose d'une buse d'alimentation (17) agencée en amont de la chambre à refoulement (19), par laquelle le fil (5) est alimenté dans la chambre à refoulement (19) au moyen d'un milieu tempéré, de préférence de l'air chaud.
  14. Dispositif selon la revendication 13, caractérisé en ce que la chambre à refoulement (19) a une section de guidage (23) perméable au gaz, par laquelle le milieu parvient hors de la chambre à refoulement (19).
EP02735329A 2001-05-05 2002-05-03 Procede et dispositif pour produire un fil lisse a faible retrait Expired - Lifetime EP1456441B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10121987 2001-05-05
DE10121987 2001-05-05
PCT/EP2002/004870 WO2002090633A2 (fr) 2001-05-05 2002-05-03 Procede et dispositif pour produire un fil lisse a faible retrait

Publications (2)

Publication Number Publication Date
EP1456441A2 EP1456441A2 (fr) 2004-09-15
EP1456441B1 true EP1456441B1 (fr) 2008-01-16

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EP02735329A Expired - Lifetime EP1456441B1 (fr) 2001-05-05 2002-05-03 Procede et dispositif pour produire un fil lisse a faible retrait

Country Status (9)

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US (1) US7270777B2 (fr)
EP (1) EP1456441B1 (fr)
JP (1) JP4154242B2 (fr)
KR (1) KR100860244B1 (fr)
CN (1) CN100422410C (fr)
AT (1) ATE384151T1 (fr)
DE (1) DE50211576D1 (fr)
MX (1) MXPA03010081A (fr)
WO (1) WO2002090633A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011109784A1 (de) 2011-08-08 2013-02-14 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Schmelzspinnen, Abziehen, Verstrecken, Relaxieren und Aufwickeln eines synthetischen Fadens
CN102912464B (zh) * 2012-11-13 2016-08-24 广州市新辉联无纺布有限公司 一种热塑性材料纺丝设备
DE102014015864A1 (de) * 2014-10-25 2016-04-28 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung eines multifilen Fadens
DE102017100488A1 (de) * 2017-01-12 2018-07-12 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung und Verfahren zur Erzeugung eines texturierten Filamentes oder Garnes
CN116446085A (zh) * 2023-04-26 2023-07-18 浙江佳宝聚酯有限公司 一种涤纶fdy长丝复合仿毛纱线的生产方法

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
NL7113810A (fr) 1970-10-17 1972-04-19
US4095317A (en) * 1974-10-24 1978-06-20 Akzona Incorporated Process for producing textured yarn
US4059873A (en) * 1975-08-29 1977-11-29 E. I. Du Pont De Nemours And Company Fluid process for making continuous filament heather yarn
NL7601584A (nl) * 1976-02-17 1977-08-19 Akzo Nv Werkwijze en inrichting voor het kroezen van garen, alsmede aldus vervaardigd garen.
US4251481A (en) * 1979-05-24 1981-02-17 Allied Chemical Corporation Continuous spin-draw polyester process
US4622187A (en) * 1984-05-23 1986-11-11 E. I. Du Pont De Nemours And Company Continuous process for making interlaced polyester yarns
DE4202896C2 (de) * 1991-02-06 2000-06-15 Barmag Barmer Maschf Verfahren zur Herstellung eines mehrfarbigen, gekräuselten Fadens
DE4224454C2 (de) * 1991-07-30 1996-06-05 Barmag Barmer Maschf Verfahren zur Regelung der Temperatur eines Heizmediums zur Erhitzung eines synthetischen Fadens und Texturiereinrichtung für einen synthetischen Faden
CN1092721C (zh) * 1995-08-04 2002-10-16 纳幕尔杜邦公司 高支长丝细聚酯纱的制造方法及由该方法制得的产品
DE19613965A1 (de) * 1996-04-09 1997-10-16 Hoechst Trevira Gmbh & Co Kg Schrumpfarme Hybridgarne, Verfahren zu deren Herstellung und deren Verwendung
DE19826654A1 (de) * 1997-06-18 1998-12-24 Barmag Barmer Maschf Verfahren und Vorrichtung zur Herstellung eines gekräuselten, multifilen Mehrkomponentenfadens
DE10100762A1 (de) * 2000-01-27 2001-08-02 Barmag Barmer Maschf Verfahren zum Spinnen eines multifilen synthetischen Fadens

Also Published As

Publication number Publication date
ATE384151T1 (de) 2008-02-15
US7270777B2 (en) 2007-09-18
US20040080074A1 (en) 2004-04-29
KR20040002913A (ko) 2004-01-07
EP1456441A2 (fr) 2004-09-15
JP4154242B2 (ja) 2008-09-24
DE50211576D1 (de) 2008-03-06
MXPA03010081A (es) 2004-03-10
WO2002090633A2 (fr) 2002-11-14
JP2004531655A (ja) 2004-10-14
KR100860244B1 (ko) 2008-09-25
WO2002090633A3 (fr) 2004-04-22
CN100422410C (zh) 2008-10-01
CN1639397A (zh) 2005-07-13

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