EP2888393A1 - Procédé et dispositif de filage à chaud servant à produire un fil bouclé - Google Patents

Procédé et dispositif de filage à chaud servant à produire un fil bouclé

Info

Publication number
EP2888393A1
EP2888393A1 EP13747388.0A EP13747388A EP2888393A1 EP 2888393 A1 EP2888393 A1 EP 2888393A1 EP 13747388 A EP13747388 A EP 13747388A EP 2888393 A1 EP2888393 A1 EP 2888393A1
Authority
EP
European Patent Office
Prior art keywords
filament bundle
godet
temperature
heat treatment
relaxation
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Withdrawn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
EP13747388.0A
Other languages
German (de)
English (en)
Inventor
Mathias STÜNDL
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.)
Filing date
Publication date
Application filed by Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP2888393A1 publication Critical patent/EP2888393A1/fr
Withdrawn legal-status Critical Current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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D10B2503/04—Floor or wall coverings; Carpets

Definitions

  • the invention relates to a melt spinning process for producing a crimped yarn according to the preamble of claim 1 and to a melt spinning apparatus for producing a crimped yarn according to the preamble of claim 7.
  • a generic method and a generic device are known from WO 2011/138 302 AI.
  • crimped yarns in a melt spinning process which are preferably used for the production of carpets
  • all treatment steps to form the desired physical properties of the yarn are usually carried out in succession.
  • a plurality of filaments are extruded from a melt of a polymer, which are combined as a bundle of filaments after cooling, prepared and drawn.
  • the filament bundle is compressed within a stuffer box in which the filament bundle is conveyed by means of a preferably heated air stream.
  • the filaments lie in sheets and loops to the yarn plug, whereby a fixation of the loops and sheets of filaments is produced by a subsequent cooling of the yarn plug, which causes the crimping.
  • the godet duo used for stretching the filament bundle are designed to be heated.
  • the filament bundle is withdrawn from the spinning device by means of a withdrawal godet duo and heated to a temperature required for stretching.
  • the drawing of the filament bundle takes place between the withdrawal godet duo and a subsequent draw godet duo.
  • the draw godet duo is also made with heated godets so that a tempered release on the filament bundle becomes effective.
  • the stretched and relaxed filament bundle is compressed directly by means of a hot air flow to the yarn plug.
  • the kinks, loops and bows of the filaments within the yarn plug cause the crimp.
  • tempering processes are superimposed by the conveying medium, for example a hot air, on the filament bundle.
  • Another object of the invention is to provide a melt spinning method and a melt spinning device in which the physical properties of the thread are individually adjustable with respect to shrinkage and curl.
  • This object is achieved according to the invention for the melt spinning process by heating the drawn filament bundle to a relaxation temperature in a first heat treatment before compression and to a crimp temperature in a second heat treatment to a pre-tempering.
  • the inventive melt spinning device offers the solution in that between the drawing device and the texturing device at least one further treatment agent is provided for a heat treatment of a filament bundle before entry into the stuffer box.
  • the invention is characterized in that two separate heat treatments are provided on the stretched filament bundle before compression, which are tuned to the respective physical property of the thread material and the filaments to be influenced.
  • the first heat treatment provided immediately after hiding can be used to achieve a desired relaxation on the skin
  • filament bundles to obtain a certain shrinkage on the thread.
  • the shrinkage characterizes the ability of the thread to reduce the thread length when exposed to heat.
  • the second heat treatment is independent of the first heat treatment and can be used advantageously to obtain a desired crimping temperature at the filament bundle for the compression and thus for the crimping.
  • the crimping represents the ability of springback of the filaments after mechanical stress.
  • heated godets In order to heat each of the stranded filaments within the filament bundle to a desired crimp temperature, the process variant in which the filament bundle is subjected to a second heat treatment in multiple wraps on a hot-blanket duo is preferred heated godets is performed. Due to the number of wraps of the filament bundle on the Warmgalettenduo relatively long residence times can be achieved even at higher yarn speeds, which ensure uniform heating of the entire filament bundle. The galette coats of the heated godets are heated to the desired crimp temperature.
  • the first heat treatment is advantageously carried out directly on a stretch godet godet heated godet, so that no additional treatment means to a relaxation of the filament bundle are required.
  • the melt spinning process according to the invention offers high flexibility in setting various combinations of crimping and shrinkage.
  • a low treatment temperature during relaxation leads to increased shrinkage and during compression to a low crimp.
  • a low shrinkage and the compression of the filaments higher curl.
  • the process variant is preferably used, in which the relaxation temperature for the relaxation of the filament bundle is equal to the crimping temperature for preheating the filament bundle.
  • crimped low shrinkage and intensive crimping yarns or crimped low crimping yarns with increased shrinkage can be produced.
  • the process variant in which the relaxation temperature to relaxation of the filament bundle is above the crimping temperature for preheating the filament bundle is particularly suitable for producing a crimped yarn with a low shrinkage and low crimping. Since the crimp not only determines the bulkiness of the thread, but also has a significant influence on the appearance of the thread in the carpet, it can be used to create special color effects in the carpet.
  • the method variant For producing crimped threads with a relatively high shrinkage and high crimping, the method variant is provided in which the relaxation temperature for relaxing the filament bundle lies above the crimping temperature for preheating the filament bundle and in which the filament bundle lies between the decompression and the preheating. slightly stretched.
  • the inventive method is particularly suitable to realize special effects both in the thread and in the subsequent end product of the carpet.
  • the inventive melt spinning device basically offers the possibility that the treatment agent for the second heat treatment could be formed by conventional heating means known in the fiber industry.
  • a radiant heater or a steam nozzle can be used to heat the filament bundle to a curling temperature.
  • the treatment agent is designed as a Warmgalettenduo with heated godets.
  • the residence time for heat treatment can be varied in a simple manner.
  • the melt-spinning device is suitable for crimped threads of any kind.
  • the high flexibility for carrying out the heat treatments is further improved by the fact that, in accordance with an advantageous development, the draw godet duo and the heat doublet duo each have a heating control, by means of which several godet heating means can be controlled.
  • the separate heat treatments can be controlled and regulated independently of each other by the draw godet duo and by the hot godet duo.
  • the heating controls are preferably connected to a process control unit, by which the process parameters are specified.
  • the device is preferably used with a texturizing device which has a cooling drum for cooling a yarn stopper led out of the stuffer box. Only after all compressed filaments within the yarn plug are tempered to a desired cold temperature, the yarn plug is dissolved into the crimped yarn.
  • 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 filaments of polyolefins, polyamides, polyesters or other polymers such as e.g. PTT, PLA manufacture.
  • the melt spinning process according to the invention and the inventive melt spinning apparatus will be explained in more detail below with reference to some embodiments with reference to the accompanying figures.
  • FIG. 1 shows schematically a view of a first embodiment of the invention erf indung according to S chmelz spinning device
  • FIG. 2 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 inventive melt spinning device is shown using the example of a yarn run, wherein such melt spinning devices are also used for producing a plurality of threads in parallel next to each other.
  • 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 plurality of filaments are extruded.
  • the polymer melt supplied by an extruder, not shown here, is fed to the spinning head 2 via a melt feed 4.
  • a spinner which is also referred to in the art as a spinner, several spinnerets side by side.
  • a cooling device 5 is provided below the spinning device 1, 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 Adenixie 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 Galetten2020sch used to heat the godets 12.1 and 12.2 of the Abzugsgalettenduos and the godets 14.1 and 14.2 of the stretch godet Duess 14 are symbolically represented and identified by the reference numerals 12.3 and 14.3.
  • 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 Galettenduo s 12 and 14 are arranged in separate godet boxes or in a common godet box.
  • the godet heating means 12.3 is coupled to a heating control unit 27.1.
  • the Galettenitzstoff 14.3 of the stretch godet Duotroco 14 are coupled to a separate heating control unit 27.2.
  • the heating control devices 27.1 and 27.2 are connected to a process control unit 31.
  • a further pair of godets is provided between the drawing device 11 and the texturing device 15, which in this case is designated as a warm-up duet 26.
  • the Warmgalettenduo 26 has two heated godets 26.1 and 26.2 with the associated Galettensammlungschn 26.3.
  • the godets 26.1 and 26.2 are also arranged in a godet box 13 in this embodiment.
  • the godet heating means 26.3 are connected to a further heating control unit 27.3.
  • the heating control unit 27.3 is coupled to the process control unit 31.
  • 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 string- 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 swirl nozzle 22 is arranged between two guide galette units 23.1 and 23.2.
  • Each of the guide godet 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 winders are well known, so that no further description is made at this point.
  • a polyester melted through an extruder granules of a thermoplastic polymer material, for example, a polyester and fed via the melt inlet 4 to the spinning head 2.
  • the melt 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 filaments 8.
  • the freshly extruded filaments 8 are removed within the range Cooling device 5 cooled with a cooling air flow and combined at the end to form a filament bundle 10.
  • the filaments 8 are wetted with a preparation fluid, preferably an oil-water emulsion.
  • the filament bundle 10 is withdrawn from the spinning device by the withdrawal godet duo 12.
  • the Galetten2020sch 12.3 are set on the associated heating control unit such that the godets 12.1 and 12.2 have a surface temperature in the range of 90 ° C to 100 ° C at their godet coats.
  • the filament bundle 10 is guided on the withdrawal godet duo 12 with preferably 7 to 15 wraps.
  • the filament yarn material is heated to a temperature suitable for stretching.
  • the draw godet duo 14 is driven at a higher speed relative to the draw godet doublet 12, so that the filament bundle 10 is stretched in the yarn path between the draw godet duo 12 and the draw godet duo 13.
  • the drawn filament bundle 10 is heated to a relaxation temperature at a relaxation temperature prior to compression in a first heat treatment.
  • the first heat treatment after hiding is carried out directly by the draw godet duo 14.
  • the godet heating means 14.3 are set via the heating control unit 27.2 to a relaxation temperature suitable for the thread material.
  • the godet coats of the godets 14.1 and 14.2 have a surface temperature in the range from 120 to 240 ° C., preferably 170 to 210 ° C.
  • the surface temperature of the godet coats of the godets 14.1 and 14.2 simultaneously represents the relaxation temperature, with which the thread material of the filaments within the filament bundle 10 are heated.
  • the filament bundle 10 is preferably guided with a total of 8 to 12 wraps on the godet duo 14. The number of wraps on the godet pair 14 determines the residence time for the relaxation of the filaments.
  • the filament bundle is heated to a crimping temperature in a second heat treatment.
  • the godets 26.1 and 26.2 of the Warmgalettenduos are heated by the Galettenitzsch 26.3 to a predetermined surface temperature of the godet coats.
  • the surface temperature of the godet shells of godets 26.1 and 26.2 corresponds to the crimping temperature to which the thread material of the filaments is heated.
  • the specifications and settings are made via the process control unit 31, which is coupled to the godet control unit 26.3.
  • the setting of the crimping temperature in the second heat treatment on the drawn filament bundle is dependent on the respective desired yarn effect which is to be achieved on the crimped yarn. Basically, the following settings are possible.
  • the relaxation temperatures in the first heat treatment for relaxation and the crimping temperature in the second heat treatment are set to a pre-heating of the filament bundle to an equal level.
  • different yarn types can be produced depending on the thread material. So it is well known that at very high relaxation temperatures and Crimping temperatures in the range of above 190 ° C the relaxation leads to a very low shrinkage behavior. Shrinkage is the ability of the fibers to shorten on exposure to temperature.
  • the setting of relatively high crimping temperatures on the filament bundle causes the ductility of the filaments to increase, thus resulting in intense buckling, looping and bowing upon compression of the filaments to the yarn plug. This results in a relatively high crimp and crimp resistance of the crimped yarn.
  • the crimp can be determined as a springback of the fiber after a mechanical load. The higher the degree of springback of the fiber, the more curl resistant the thread.
  • crimped yarns By adjusting the temperature level, in the first variant, with identical relaxation temperature and crimping temperature, crimped yarns can also be produced, which are characterized by a relatively high shrinkage and a low crimp. Thus, at very low relaxation temperature of the first heat treatment, no sufficient relaxation of the filaments are produced. The remaining in the filaments residual stresses then lead to a high shrinkage tendency of the crimped yarn. In pre-tempering, low crimp temperatures affect a lack of ductility of the filaments resulting in low crimp and crimp resistance of the yarn. At different temperature levels between the relaxation temperature and the crimping temperature, two further variants for the production of crimped yarns are to be distinguished.
  • the heat treatment for relaxation with a Relaxationstem- executed which is substantially higher than the crimping temperature in the second heat treatment to a pre-tempering of the filament bundle. This produces a crimped yarn characterized by low shrinkage and low crimp.
  • the color appearance is determined by the crimp.
  • a strongly curled filament tends to give a carpet a duller, less contrasting color, as more and more bent side surfaces of the filaments are looked at.
  • an increased shrinkage is undesirable because the fiber otherwise contracts too much under thermal stress and thus the pile height is reduced in the carpet.
  • high-contrast carpets tend to be made with crimped filaments characterized by low crimp and low shrinkage.
  • the first and second heat treatment is carried out on the stretched thread each by Galettenduos. Such a heat treatment has proven itself especially at high process speeds in the region of 4,000 m / min, as are customary in the production of crimped threads.
  • the heat treatment by Galettenduo is not mandatory.
  • other treatment agents for heating fibers in order to perform a relaxation on the filament bundle or a preheating of the filament bundle.
  • the temperature control of the filament bundle is effected by heat radiators or superheated steam.
  • the promotion of the filament bundle can be done here with a hot air stream or with a cold air stream.
  • the pre-tempering of the filament bundle is to be considered on the crimping temperature.
  • the thread 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 having a first guide sgalettentician 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.
  • Such creased threads are preferably produced as monochrome threads.
  • the crimped thread is produced from a plurality of colored filament bundles. Such an embodiment is shown schematically in FIG.
  • 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 spinning 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, for each spinneret 3.1 to 3.2, in each case has a wetting agent 9.1 to 9.3 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 spinning godet units 30.1, 30.2 and 30.3 each have a galette and a supplementary roll.
  • the filament bundles 10.1, 10.2, and 10.3 are guided parallel to one another and stretched together.
  • the drawing device 11 has a withdrawal godet duo 12 and a draw godet duo 14.
  • the withdrawal godet duo 12 is formed in this case by a heated godet 12.1 and a Beilaufrolle 12.4.
  • the heated godet 12.1 has a Galettensammlungsch 12.3, which is controllable via a Hei Tavern réelle 27.1.
  • the draw godet duo 14 has the heated godets 14.1 and 14.2, whose godet coats are heated by the godet heating means 14.3.
  • the Galettenitzstoff 14.3 is coupled to a heating control unit 27.2.
  • the stretch godet duo 14 is identical to the aforementioned embodiment of FIG. 1 and arranged within a godet box 13.
  • a hot-godet duo 26 which is likewise designed identically to the aforementioned exemplary embodiment according to FIG. 1, so that at this point reference is made to the above-described description.
  • the filament bundles 10.1, 10.2 and 10.3 heated together by means of the stretch godet tube 14 for relaxation to a relaxation temperature.
  • the filament bundles 10.1 to 10.3 are guided parallel to each other in several wraps around the godets 14.1 and 14.2.
  • the preheating of the filament bundles 10.1 to 10.2 on the crimping temperature is carried out by the Warmgalettenduo 26, wherein the filament bundles 10.1 to 10.3 are also parallel to each other with several wraps on the godets 26.1 and 26.2 out.
  • 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 thread.
  • 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. There may be threads with different physical properties such as single titer, cross section, color or even different polymer types. It is essential here that the heat treatments for the relaxation of the filaments and the heat treatment for the pre-tempering of the texturing take place in separate treatment steps. This ensures that the development Tension of the filaments and the crimp of the filaments are independently adjustable.
  • the melt spinning process according to the invention and the inventive melt spinning device are basically suitable for all thermoplastic polymers which are used for fiber production.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (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 et un dispositif de filage à chaud servant à produire un fil bouclé. A partir d'un polymère thermoplastique on produit par filage de plusieurs filaments, au moins un faisceau de filaments qui est refroidi, étiré et comprimé au moyen d'un flux d'air dans une boîte de refoulement pour former un bouchon de fil, puis le bouchon de fil est dissocié pour donner un fil bouclé qui est bobiné. Selon l'invention, afin de pouvoir ajuster indépendamment l'une de l'autre la tendance au retrait et la tenue du bouclage du fil bouclé, le faisceau de filaments étiré est porté avant la compression, lors d'un premier traitement thermique, à une température de relâchement des contraintes et, lors d'un deuxième traitement thermique, à une température de bouclage afin de le pré-conditionner. Pour cela, au moins un autre moyen de traitement thermique est disposé entre un système d'étirage et un système de texturation afin de traiter au moins un faisceau de filaments avant qu'il pénètre dans la boîte de refoulement.
EP13747388.0A 2012-08-23 2013-08-08 Procédé et dispositif de filage à chaud servant à produire un fil bouclé Withdrawn EP2888393A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012016799 2012-08-23
PCT/EP2013/066608 WO2014029627A1 (fr) 2012-08-23 2013-08-08 Procédé et dispositif de filage à chaud servant à produire un fil bouclé

Publications (1)

Publication Number Publication Date
EP2888393A1 true EP2888393A1 (fr) 2015-07-01

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Country Status (4)

Country Link
US (1) US20150233020A1 (fr)
EP (1) EP2888393A1 (fr)
CN (1) CN104583472B (fr)
WO (1) WO2014029627A1 (fr)

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CN111793865B (zh) * 2019-04-03 2024-01-05 欧瑞康纺织有限及两合公司 用于引导和润湿卷曲变形的丝束的方法和设备
CN114150390A (zh) * 2021-10-14 2022-03-08 江苏嘉通能源有限公司 一种米字型涤锦复合丝的生产设备及生产方法
CN115897008A (zh) * 2022-11-18 2023-04-04 天津工业大学 一种多束细旦涤纶连续膨体长丝、及其制备方法和生产设备

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US20150233020A1 (en) 2015-08-20

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