WO2015032759A1 - Procédé de filage à chaud et dispositif de filage à chaud permettant de produire un fil frisé - Google Patents

Procédé de filage à chaud et dispositif de filage à chaud permettant de produire un fil frisé Download PDF

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Publication number
WO2015032759A1
WO2015032759A1 PCT/EP2014/068623 EP2014068623W WO2015032759A1 WO 2015032759 A1 WO2015032759 A1 WO 2015032759A1 EP 2014068623 W EP2014068623 W EP 2014068623W WO 2015032759 A1 WO2015032759 A1 WO 2015032759A1
Authority
WO
WIPO (PCT)
Prior art keywords
godet
filament bundle
auxiliary
melt
delivery nozzle
Prior art date
Application number
PCT/EP2014/068623
Other languages
German (de)
English (en)
Inventor
Claus Matthies
Ludger Legge
Original Assignee
Oerlikon Textile Gmbh & 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 Oerlikon Textile Gmbh & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Priority to EP14758152.4A priority Critical patent/EP3041978A1/fr
Priority to CN201480048817.4A priority patent/CN105518194A/zh
Publication of WO2015032759A1 publication Critical patent/WO2015032759A1/fr

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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
    • 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
    • D01D13/00—Complete machines for producing artificial threads
    • 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
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool

Definitions

  • the invention relates to a melt spinning method for producing a crimped thread according to the preamble of claim 1 and to a melt spinning device for producing a crimped thread according to the preamble of claim 5.
  • a generic method and a generic device for the production a crimped thread are known from DE 103 26 850 AI.
  • the treatment steps to form the desired physical properties of the yarn are usually by separate sequential treatment devices.
  • a spinning device a plurality of filaments are transferred from a melt of a polymer, which are combined and prepared as a filament bundle after cooling.
  • the filament bundle is completely stretched by means of a drawing device.
  • the texturing process takes place, in which the filament bundle is conveyed by means of a delivery nozzle into a stuffer box, in which the filament bundle is deposited in sheets and loops into a thread stopper by means of a preferably heated air stream.
  • the yarn plug is dissolved after cooling to a thread and wound as a crimped yarn in a winding device to the coil.
  • the treatment facilities are arranged as possible without additional thread guides to a yarn path in a row.
  • the texturing nozzle is arranged directly downstream of a draw godet of the drawing device in order to remove the stretched filament bundle from the drawing device and to convey it into the subsequent stuffer box.
  • a pneumatic delivery stream is preferably generated from hot air within the delivery nozzle, which generates the necessary tensile forces for pulling and conveying the filament bundles.
  • correspondingly high volume flow rates of the hot air are required, which require corresponding overpressure settings of the compressed air.
  • This object is achieved according to the invention for the melt spinning process in that the stretched filament bundle is fed through a driven auxiliary godet of the delivery nozzle, wherein the filament bundle contacts a godet shell of the auxiliary godet with a partial looping.
  • the inventive melt spinning device offers the solution in that a driven auxiliary godet is arranged between the drawing device and the texturing device, which is arranged at a short distance upstream of the delivery nozzle and has a godet casing for guiding a yarn with a simple partial looping.
  • the invention is characterized in that the delivery nozzle of the texturing device only has to generate relatively low yarn tensile forces for drawing in the filament bundle.
  • the air flow within the delivery nozzle can be used essentially for conveying and compressing the filaments into a yarn plug.
  • the withdrawal of the filament bundle from the drawing device and the feeding of the filament bundle to the delivery nozzle can be advantageously realized by the driven auxiliary godet.
  • Another particular advantage of the invention is that the delivery nozzle the texturing device can be operated at lower air pressures to produce the filing and compression of the filaments.
  • the process variant is provided, in which the stretched filament bundle is guided with a minimum tensile force of> 150 cN generated by the auxiliary godet. This makes it possible to ensure both the withdrawal of the filament bundle from the drawing device and the feed to the delivery nozzle.
  • the method variant is preferably used, in which the filament bundle between the auxiliary godet and the delivery nozzle is guided with a free thread length in the range of 50 mm to 200 mm. This makes it possible to minimize additional heat losses during the transition of the yarn heated in the drawing process.
  • This effect can be further improved by the filament bundle is guided on the circumference of a heated galettenmantels the auxiliary godet.
  • the heating of the filament bundle also brings energetic advantages, since the introduced by the heated air in the filament bundle amount of heat can be reduced.
  • the inventive melt spinning device basically offers the possibility, by appropriate interpretation of the auxiliary godet, to transfer the filament bundle as tension-free as possible in the texturing device.
  • the godet jacket according to an advantageous development of the device according to the invention has an outer diameter in the range of 60 mm to 100 mm.
  • partial loops of the filament bundle in the range of 60 ° to 180 ° can be realized. In order to produce even higher tensile forces, partial looping> 180 ° are possible.
  • the distance between the auxiliary godet and an inlet of the delivery nozzle is selected such that the filament bundle in a free thread length in the range of 50 mm to 200 mm can be guided.
  • the tempering of the filament bundle can be advantageously improved before the texturing by a heating means for contactless heating of the godet shell of the auxiliary godet is assigned.
  • a heating means for contactless heating of the godet shell of the auxiliary godet is assigned.
  • Such heating means may be formed by radiant heaters or induction coils.
  • the setting of the peripheral speed of the godet casing can be preferably controlled by the development of the invention, in which the auxiliary godet for driving the godet casing has a brushless DC motor (eg BLDC motor).
  • a brushless DC motor eg BLDC motor
  • individual adjustments can be made directly on the auxiliary godet, depending on the process and the thread tension forces.
  • similar electric motors such as a PMSM motor are suitable, which allow a speed adjustment.
  • the melt spinning process according to the invention and the melt spinning device according to the invention are basically suitable for all thermoplastic polymers used for fiber production.
  • crimped threads of Polyolephyne, polyamide, polyester or other polymers such as PTT, PLA can be produced.
  • Fig. 1 shows schematically a view of a first embodiment of the invention erf indung according to S chmelz spinning device
  • FIG. 2 is a schematic view of an exemplary embodiment of the auxiliary gillette of the exemplary embodiment from FIG. 1
  • Fig. 3 shows schematically a view of another embodiment of the invention erf indung according to S chmelz spinning device
  • Fig. 1 is a schematic view of a first embodiment of the inventive melt spinning device for producing a crimped yarn of a thermoplastic polymer is shown.
  • the embodiment of the invention melt spinning device is shown using the example of a yarn path, wherein such melt spinning devices are also used to produce a plurality of threads in parallel side by side.
  • the embodiment of the inventive melt spinning apparatus shown in FIG. 1 comprises a spinning device 1, a cooling device 5, a stretching device 11, a texturing device 15, an aftertreatment device 20 and a winding device 24, which are arranged one behind the other to form a yarn path.
  • the spinning device 1 is shown in this embodiment by a spinning head 2.
  • the spinning head 2 is designed to be heated in order to temper the units and lines used to guide and distribute a polymer melt.
  • the spinning head 2 on its underside a spinneret 3, which is coupled to a spinning pump, not shown here.
  • the spinneret 3 carries on its underside a nozzle plate having a plurality of nozzle bores through which a multiplicity of filaments are extruded. Such spinnerets are well known and so far not described here.
  • the polymer melt supplied by an extruder, not shown here, is fed to the spinning head 2 via a melt feed 4.
  • spinner 2 which is also referred to in the art as a spinner, several spinnerets side by side.
  • a cooling device 5 which forms a cooling shaft 6 for receiving freshly extruded filaments, wherein the cooling shaft 6 is associated with a blowing means 7 for generating a cooling air flow.
  • the cooling air can in this case be carried out from the outside to the inside by a transverse flow blowing or a radial blowing. In principle, however, it is also possible to direct a cooling air flow radially from the inside to the outside through the filament bundle.
  • the filaments 8 produced by the spinnerets 3 are combined after cooling to a filament bundle 10.
  • a preparation device 9 is provided below the cooling device 5.
  • the preparation device 9 usually has a Sammelf Aden researching and a wetting agent. As wetting agents, preparation pens or preparation rollers can be used.
  • the preparation device 9 follows in the threadline a stretching device 11, which is formed in this embodiment by a Abzugsgalettenduo 12 with two heated godets 12.1 and 12.2 and a Streckgalettenduo 14 with the heated godets 14.1 and 14.2.
  • the heated godets 12.1 and 12.2 and 14.1 and 14.2 are each arranged in a godet box 13. Basically, there is the possibility that the Galet- tenduos 12 and 14 are arranged in separate godet boxes or in a common galette box.
  • an auxiliary godet 26 is arranged between the drawing device 11 and the texturing device 15.
  • the auxiliary godet 26 has a rotatably mounted godet casing 27, which is driven by an electric motor 31.
  • the electric motor 31 is designed as a brushless DC motor (BLDC motor or PMSM motor), so that the peripheral speed of the godet casing 27 of the auxiliary godet 26 can be controlled and regulated directly via the electronics of the BLDC motor 31.
  • the auxiliary godet 26 is arranged in the yarn path between the draw godet 14.1 and the texturing device 15 such that a running of the draw godet 14.1 filament bundle with a simple Operaumschlin- tion on the circumference of the godet shell 27 of the auxiliary godet 26 is feasible.
  • the auxiliary godet 26 is arranged at a short distance above the texturing device 15.
  • the texturing device 15 is formed in this embodiment by a delivery nozzle 16 and a stuffer box 17 arranged on the outlet side of the delivery nozzle 16, which cooperates with a downstream cooling drum 19.
  • the delivery nozzle 16 is coupled to a compressed air source to convey the filament bundle 10 by means of an air flow into the stuffer box 17 and to compress it into a yarn plug.
  • the air flow for conveying the filament bundle is preferably heated.
  • the yarn plug 18 is cooled at the periphery of the cooling drum 19 by a cooling air.
  • the texturing device 15 is arranged downstream of an aftertreatment device 20, which on the one hand dissolves the yarn plug 18 by subtracting a crimped yarn at the circumference of the cooling drum 19 and, on the other hand, swirls the yarn to increase the thread closing.
  • a turbulence nozzle 22 is arranged between two guide godet units 23.1 and 23.2.
  • Each of the guide galley units 23.1 and 23.2 has a galette and a by-pass roller.
  • the winding device 24 has a winding turret 28 with two projecting winding spindles 29.1 and 29.2.
  • the winding spindles are successively guided in a winding area and a change area to continuously wind the crimped thread into coils.
  • Such winding devices are generally my known, so that there is no further description at this point.
  • a granulate of a thermoplastic polymer material for example a polyester
  • a melt feed 4 is conveyed with a spinning pump to the spinneret 3 under pressure, so that emerge at the bottom of the spinneret 3 from the nozzle openings of the nozzle plate a plurality of Fialmenten 8.
  • the freshly extruded filaments 8 are cooled within the cooling device 5 with a stream of cooling air and finally combined to form a filament bundle 10.
  • the filaments 8 are wetted with a preparation sfluid preferably an oil-water emulsion.
  • the Fialmentbündel 10 is withdrawn by the Abzugsgalettenduo 12 from the spinning device 1.
  • the heated godets 12.1 and 12.2 have a surface temperature in the range of 90 ° C. to 100 ° C. on their godet shells.
  • the filament bundle 10 is guided with preferably 10 to 15 wraps on the withdrawal godet duo 12.
  • the thread material of the filaments is heated to a temperature suitable for hiding.
  • the stretch godet duo 14 is driven at a higher speed relative to the withdrawal godet duo 12, so that the filament bundle 10 is stretched in the yarn path between the withdrawal godet duo 12 and the draw godet duet 13.
  • the godet coats of the godets 14.1 and 14.2 have a surface temperature in the range from 120 ° C. to 210 ° C.
  • the surface At the same time, the cooling temperature of the godet coats of the godets 14.1 and 14.2 simultaneously represents a relaxation temperature with which the filament material of the filaments within the filament bundle 10 is heated and relaxed.
  • the filament bundle 10 is likewise preferably guided with a total of 8 to 12 wraps on the godet duo 14. The number of wraps on the godet duo 12 and 14 determines the residence time for heating or for relaxation of the filaments.
  • the auxiliary godet 26 After hiding the filament bundle 10 is withdrawn from the drawing device 11 by the auxiliary godet 26 and fed to the delivery nozzle 16.
  • the auxiliary godet 26 On the one hand to produce 16 low yarn tension compared to the delivery nozzle and on the other hand to avoid possible heat loss in the transition from the godet duel 14 to the delivery nozzle 16, since filament bundle 10 is guided with simple looping on the godet coats 27 of the auxiliary godet 26.
  • the auxiliary godet 26 is held at a short distance from the delivery nozzle 16.
  • Fig. 2 shows a further embodiment of an auxiliary godet 26 in the immediate vicinity of a delivery nozzle 16, as they would be used for example in the embodiment of FIG.
  • the device parts of the auxiliary godet 26 and the delivery nozzle 16 are identical to the embodiment of FIG. 1 executed so that reference is made to the above description at this point and only the differences will be explained.
  • the heating means 33 may be formed, for example, by an induction coil, which is held in the interior of a hollow cylindrical godet casing 27.
  • the induction coil could be arranged both on a godet carrier and on an outer support, for example on a door of a godet box.
  • the auxiliary godet 26 has on the godet casing 27 on an outer diameter, which is marked in Fig. 2 with the letter D.
  • the outer diameter of the godet casing 27 has a size ranging from 60 mm to 100 mm. In this way, the minimum yarn tension required to remove a filament bundle can be achieved with conventional godet surfaces. Thus, to relieve the texturing nozzle, a minimum tensile force can be generated by the auxiliary godet 26, which is in the range of> 150 cN.
  • the free thread length, which passes through the filament bundle 10 from the outlet of the godet casing 27 up to a yarn inlet 32 of the delivery nozzle 16, is marked in FIG. 2 with the code letter A.
  • the distance between the auxiliary godet 26 and the delivery nozzle 16 is dimensioned such that the filament bundle 10 has a free thread length in the range of 50 mm to max. 200 mm passes.
  • the environmental effects on the filament bundle 10 at the transition between the drawing device 11 and the texturing device 15 can be minimized.
  • Due to the upstream auxiliary roll 26, the filament bundle 10 can be supplied to the delivery nozzle 16 in a stress-relieved manner so that it does not have to generate any substantial yarn tensile forces for drawing in the filament bundle 10.
  • the filament bundle 10 is conveyed through the delivery nozzle 16 into the stuffer box 16 by means of a hot air flow and dammed into a thread plug.
  • the promotion of the filament bundle can alternatively be done depending on the process variant with a cold air flow.
  • the yarn plug 18 formed by the compressed filaments of the filament bundle 10 is conveyed out of the stuffer box 17 and cooled at the periphery of the cooling drum 19.
  • the dissolution of the yarn plug 18 to the crimped yarn 21 is carried out by the aftertreatment device 20, which has a first guide galette unit 23.1.
  • the aftertreatment device 20 which has a first guide galette unit 23.1.
  • the crimped thread 21 is swirled in the Verwirbelungsdüse 22 and then guided over the second guide godet unit 23.2 to the winding device 24.
  • the crimped yarn 21 is wound to the spool 25.
  • the melt spinning process according to the invention and the inventive melt spinning device is shown using the example of the yarn path of a crimped yarn, which is produced from a filament bundle.
  • crimped threads are preferably produced as monochrome threads.
  • the crimped thread of several colored filament bundles generated.
  • FIG. 3 the spinning device 1 has a spinning head 2, on the underside of which three spinnerets are held side by side.
  • Each of the spinnerets 3.1, 3.2 and 3.3 is connected to a separate spin pump, which are coupled via the melt inlets 4.1, 4.2 and 4.3, each with separate extruders.
  • the filaments 8 are passed together through a cooling shaft 6 of the cooling device 5 and cooled by means of a cooling air flow.
  • the cooling air flow is in this case preferably generated by a blowing agent 7, a cross-flow blowing.
  • a preparation device 9 which in each case has a wetting agent for each spinneret 3.1 to 3.2, in order to combine the filaments 8 extruded by one of the spinnerets into a filament bundle.
  • the flock of filaments 8 is combined into a total of three filament bundles 10.1, 10.2 and 10.3.
  • the filament bundles 10.1, 10.2, and 10.3 are withdrawn from the spinning device 1 by separate spinning godet units 30.1, 30.2, and 30.3 and guided to a subsequent drawing device 11.
  • 30.2 and 30.3 each have a godet and a reel.
  • the drawing device 11 has a withdrawal godet duo 12 and a
  • the withdrawal godet duo 12 is formed in this case by a heated galette 12.1 and a Beilaufrolle 12.3.
  • the draw godet duo 14 has the heated godets 14.1 and 14.2.
  • the auxiliary godet 26 and the draw godet duo 14 are arranged together in a pallet box 13.
  • the auxiliary godet 26, which is substantially smaller in diameter than the draw godet 14.1 and 14.2, also has a heated godet casing 27.
  • the auxiliary godet 26 on the godet casing 27 is simply wrapped around by the filament bundles 10.1, 10.2 and 10.3.
  • the following texturing device 15 and the aftertreatment device 20 and the winding device 24 are identical to the embodiment of FIG. 1 executed, so that reference is also made at this point to the above description.
  • the filament bundles 10. 1, 10. 2 and 10. 3 are guided together in parallel alongside one another on the godets of the drafting device 11 and the auxiliary godet 26.
  • the filament bundles 10.1 to 10.3 are compressed together by the delivery nozzle 16 to form a thread stopper 18.
  • the yarn plug 18 is thus produced from differently colored filament bundles and dissolved after cooling to the crimped multicolor thread.
  • the filament bundles 10.1 to 10.3 are withdrawn together from the auxiliary godet 26 from the drawing device 11 and supplied to the delivery nozzle 16 with as little stress as possible.
  • the melt spinning process according to the invention and the inventive melt spinning device thus extend to crimped monocooler threads as well as to curled multicolor threads. What is essential here is that the filament bundles are supplied to the texturing device 11 with as little stress as possible in order to be able to control the compression process by means of the hot air and to be able to adjust them.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un procédé de filage à chaud et un dispositif de filage à chaud permettant de produire un fil frisé. Un faisceau de filaments est produit au moyen d'un dispositif de filage à partir d'un polymère thermoplastique intégralement étiré après avoir été refroidi. Une fois étiré, le faisceau de filaments est tiré à travers une buse de transport d'un dispositif de texturation et transporté dans une boîte de bourrage pour former un bouchon de fils. Le bouchon de fils est dissocié pour obtenir un fil frisé puis bobiné. L'invention vise à pouvoir mettre en œuvre un frisage ajustable, dans la mesure du possible avec un faible débit volumique du produit transporté. A cet effet, selon l'invention, le faisceau de filaments étiré est amené à travers une galette auxiliaire entraînée de la buse de transport, le faisceau de filaments entrant en contact par enroulement partiel avec une enveloppe de la galette auxiliaire.
PCT/EP2014/068623 2013-09-07 2014-09-02 Procédé de filage à chaud et dispositif de filage à chaud permettant de produire un fil frisé WO2015032759A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14758152.4A EP3041978A1 (fr) 2013-09-07 2014-09-02 Procédé de filage à chaud et dispositif de filage à chaud permettant de produire un fil frisé
CN201480048817.4A CN105518194A (zh) 2013-09-07 2014-09-02 用于制造卷曲变形长丝的熔融纺丝方法和熔融纺丝设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013015003.5 2013-09-07
DE102013015003 2013-09-07

Publications (1)

Publication Number Publication Date
WO2015032759A1 true WO2015032759A1 (fr) 2015-03-12

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PCT/EP2014/068623 WO2015032759A1 (fr) 2013-09-07 2014-09-02 Procédé de filage à chaud et dispositif de filage à chaud permettant de produire un fil frisé

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EP (1) EP3041978A1 (fr)
CN (1) CN105518194A (fr)
WO (1) WO2015032759A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021002970A1 (de) 2020-08-04 2022-02-10 Oerlikon Textile Gmbh & Co. Kg Verfahren zur Überwachung einer Aufspulvorrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017100488A1 (de) * 2017-01-12 2018-07-12 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung und Verfahren zur Erzeugung eines texturierten Filamentes oder Garnes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326850A1 (de) * 2003-06-14 2004-12-30 Saurer Gmbh & Co. Kg Vorrichtung zum Spinnen und Behandeln synthetischer Fäden
WO2011009498A1 (fr) * 2009-07-24 2011-01-27 Oerlikon Textile Gmbh & Co. Kg Procédé de filage à l'état fondu, d'étirage et de déroulement d'un filé multifilament, et procédé d'exécution du procédé

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326850A1 (de) * 2003-06-14 2004-12-30 Saurer Gmbh & Co. Kg Vorrichtung zum Spinnen und Behandeln synthetischer Fäden
WO2011009498A1 (fr) * 2009-07-24 2011-01-27 Oerlikon Textile Gmbh & Co. Kg Procédé de filage à l'état fondu, d'étirage et de déroulement d'un filé multifilament, et procédé d'exécution du procédé

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021002970A1 (de) 2020-08-04 2022-02-10 Oerlikon Textile Gmbh & Co. Kg Verfahren zur Überwachung einer Aufspulvorrichtung

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CN105518194A (zh) 2016-04-20
EP3041978A1 (fr) 2016-07-13

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