EP1045930B1 - Procede et dispositif pour la production d'un fil hautement oriente - Google Patents

Procede et dispositif pour la production d'un fil hautement oriente Download PDF

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Publication number
EP1045930B1
EP1045930B1 EP99971872A EP99971872A EP1045930B1 EP 1045930 B1 EP1045930 B1 EP 1045930B1 EP 99971872 A EP99971872 A EP 99971872A EP 99971872 A EP99971872 A EP 99971872A EP 1045930 B1 EP1045930 B1 EP 1045930B1
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EP
European Patent Office
Prior art keywords
filaments
yarn
diffuser
solidification
constrictor
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
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EP99971872A
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German (de)
English (en)
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EP1045930A1 (fr
Inventor
Detlev Schulz
Hansjörg MEISE
Klaus Schäfer
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Oerlikon Textile GmbH and Co KG
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Saurer GmbH and Co KG
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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
    • D01D5/098—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
    • D01D5/08—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
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters

Definitions

  • the invention relates to a method for producing a highly oriented thread (HOY) from a thermoplastic material and to a spinning device for melt spinning a highly oriented thread.
  • HOY highly oriented thread
  • partially drawn yarns In the production of synthetic multifilament yarns from a thermoplastic melt in a process step, a distinction is in principle made between partially drawn yarns and fully drawn yarns.
  • the partially drawn threads have a pre-oriented molecular structure which requires post-stretching in a second process stage. They are referred to as preoriented yarns (POY).
  • preoriented yarns POY
  • fully drawn yarns FDY
  • the FDY yarns are thereby harnessverstreckt in the spinning process by means of drafting, so that adjusts an aligned molecular structure in the polymer.
  • HOY high-oriented yarn
  • stress-induced crystallization leads to orientation of the molecules in the polymer.
  • the known HOY yarns have a lower elastic limit, which, depending on the further processing method due to the action of force on these yarns to a permanent deformation and thus may cause uneven staining.
  • the known HOY yarns are completely unsuitable.
  • the elastic limit of HOY yarns can theoretically be increased by increasing the take-off speed, there are physical limits to this process since, during the melt-spinning of HOY yarns, the filaments forming the yarn may have only limited crystallinity during stretching, in order to ensure reliable removal without To ensure yarn damage. Too high a pre-crystallized filament is too frozen in its structure to safely withstand the forces occurring at the draw point without overloading.
  • EP 0 530 652 discloses an apparatus and a method for producing a synthetic thread, in which the filaments are subjected to a delayed cooling before solidification. As a result, the crystallization of the filaments is further retarded, which leads to an increased elastic limit of the yarns.
  • the known apparatus and the known method have the disadvantage that the length of the delayed cooling can only be very limited since the lack of stabilization of the filaments by the blowing represents an increasing risk for bonding the filaments within this range.
  • the cited document DE-A-4 223 198 discloses a method and an apparatus for producing a melt-spun yarn in which the filament bundle passes through a cooling duct with air-permeable wall.
  • a cooling air flow generated from outside to inside is sucked into the cooling shaft.
  • a pressure difference between an inlet side of the cooling shaft and an outlet side of the cooling shaft is created.
  • HOY highly oriented yarn
  • FDY fully drawn yarn
  • the invention is based on the recognition that the overloading of the filaments is due to the process of thread formation.
  • the filaments In the case of fast spinning, no uniform increase in the yarn speed is observed between the yarn outlet from the spinneret and the solidification point of the filaments.
  • a relatively slow acceleration first occurs until the onset of stress-induced crystallization.
  • the Stress-induced crystallization leads within a few centimeters to an acceleration of the filaments to the take-off speed.
  • the strength of the filaments must be greater than the forces required to accelerate the thread to avoid filament breakage.
  • the filaments are supported prior to solidification in such a way that before solidification no significant additional tensile stresses act as a result of air friction forces on the filaments.
  • the filaments are relieved before solidification, so that during the solidification during drawing a reduced withdrawal tension on the filaments is effective.
  • a high orientation of the molecules is achieved during stretching and on the other hand allows a high take-off speed with a correspondingly high withdrawal voltage.
  • the withdrawal tension is generated by a withdrawal speed of at least 6,500 m / min. It has been found that this is a highly oriented thread with strengths greater than 4 cN / dtex and elongations in the range of 30% can be produced.
  • the running speed of the filaments before drawing is increased by a higher injection speed when extruding the filaments. In practice, this possibility can be used only to a certain extent due to the high pressure drops over the nozzle plate.
  • the air friction acting on the filaments is influenced.
  • the filaments are passed through a cooling medium after extrusion. Immediately before the solidification of the filaments a filament movement supporting cooling medium flow is generated. This reduces a reduction in the air friction which acts on the filaments to decelerate. Air is preferably used as the cooling medium.
  • the cooling medium flow has a flow velocity which is substantially equal to the running speed of the filaments before solidification.
  • the flow of cooling medium can be generated at a flow rate which is greater than the running speed of the filaments before solidification. This allows highly oriented threads with high strength to be produced at even higher process speeds.
  • the filaments are guided before solidification by a confuser and a diffuser to produce the cooling medium flow.
  • the cooling medium flow can be generated specifically at one point or a very short distance of the spinning line.
  • the narrowest cross-section of the confuser is placed in the spinning line such that it lies just before the solidification point of the filaments.
  • the filaments are passed after extrusion and before solidification through a cooling shaft, which is connected by an air-permeable cylindrical wall with ambient air.
  • a delayed cooling of the filaments is achieved, so that the flow forces are favorably influenced and lead to a further relief of the withdrawal voltage.
  • the filaments are passed immediately after exiting the spinneret through a heating zone in which the filaments a quantity of heat is supplied.
  • the process variant according to claim 8 is particularly advantageous.
  • the withdrawal tension is generated directly by the winding speed of a winding device.
  • the withdrawal tension is determined by a delivery mechanism.
  • the delivery mechanism is arranged in front of the winding device, so that thread tension fluctuations due to the winding advantageously can not affect the spinning line.
  • the thread can be made with a very even pull-off tension.
  • a highly oriented yarn having substantially similar properties as a fully drawn yarn can be produced by influencing the spinning line.
  • the spinning device according to the invention has been found according to claim 11 as particularly advantageous for carrying out the method.
  • the cooling device is formed according to the invention by a confuser and a diffuser arranged on the outlet side of the confuser.
  • the confuser greatly accelerates the air entrained by the filaments, accelerating the flow of cooling air in the narrowest section to a maximum velocity. Directly after passing through the narrowest cross-section of the confuser an expansion of the cooling air through the Diffuser.
  • the flow velocity of the cooling air thus slows down.
  • the filament movement is supported very briefly. A longer treatment path, which favors a pre-orientation, is avoided.
  • the spinning device can be made according to claim 13.
  • turbulences can be avoided on the outlet side of the cooling device during expansion of the air stream surrounding the filaments by forming the spinning device according to claim 14.
  • the entrained air is discharged evenly over the entire circumference of the filament bundle.
  • the Korifusor should have a diameter of at least 10 mm to a maximum of 40 mm in the narrowest cross-section.
  • the formation of the spinning device according to claim 17 is particularly advantageous.
  • the amount of air flowing into the cooling shaft can be influenced.
  • the through the wall The amount of air entering the inlet cylinder is proportionally dependent on the gas permeability or the porosity of the wall. With a high gas permeability, a larger amount of air per unit of time per unit of time is introduced into the cooling shaft at otherwise constant conditions.
  • each filament in the spinning line be treated evenly until the collection.
  • the formation of the spinning device according to claim 18 ensures that the flow generated in the confuser acts uniformly on each of the filaments.
  • the thread is withdrawn by means of a delivery system of the spinneret.
  • the withdrawal tension and the thread tension when winding the thread can be set independently.
  • the take-off tension can be generated with high uniformity.
  • the formation of the spinning device according to claim 20 is particularly advantageous.
  • a thread tension reduction on the size of the looping of the thread is set on the rollers.
  • the formation of the spinning device according to the invention according to claim 21 is particularly advantageous.
  • a heating device for the thermal treatment of the filaments is provided between the spinneret and the cooling cylinder.
  • the inventive method and the spinning device according to the invention are suitable for producing highly oriented textile threads of polyester, polyamide or polypropylene.
  • a first embodiment of a spinning device according to the invention for spinning a highly oriented yarn is shown.
  • a thread 12 is spun from a thermoplastic material.
  • the thermoplastic material is melted via a filling device 43 in an extruder 40.
  • the extruder 40 is driven by a drive 41 which is connected to a control unit 42 for control. in this connection
  • the control can be pressure-dependent.
  • the control unit 42 is connected to a pressure sensor 48, which is arranged at the outlet of the extruder 40.
  • the melt passes from the extruder 40 through a melt line 47 to a manifold pump 44.
  • the manifold pump is controlled in its capacity by a drive 45 and the controller 46.
  • the melt is conveyed via a melt line 3 to a heated spinning head 1.
  • a spinneret 2 is attached.
  • the spinneret 2 has on the underside a plurality of nozzle bores. Under pressure, the melt is then extruded through the nozzle bores and exits the spinneret in the form of fine filament strands 5.
  • the filaments 5 pass through a cooling shaft 6, which is formed by a cooling cylinder 4.
  • the cooling cylinder 4 is arranged directly below the spinning head 1 and encloses the filaments 5.
  • a confuser 9 adjoins in the thread running direction. The confuser 9 leads in the thread running direction to the constriction of the cooling channel 6.
  • a diffuser 10 is arranged in the narrowest cross section of the confuser 9, a diffuser 10 is arranged.
  • the confuser 9 and the diffuser 10 are interconnected by the seam 8.
  • the diffuser 10 leads in the direction of yarn travel to an extension of the cooling channel 6.
  • the diffuser opens into a vacuum chamber 11.
  • a screen cylinder 30 is mounted in the vacuum chamber 11 in extension of the diffuser 10.
  • the screen cylinder 30 has an air-permeable wall and penetrates the vacuum chamber 11 to the bottom thereof.
  • an outlet opening 13 is introduced into the vacuum chamber 11 in the thread running plane.
  • a suction nozzle opens into the vacuum chamber 11.
  • the vacuum generator 15 is connected to the vacuum chamber 11.
  • the vacuum generator 15 may be, for example, a vacuum pump or a blower which generates a negative pressure in the vacuum chamber 11 and thus in the diffuser 10.
  • the winding device 20 consists of a head thread guide 19, the head thread guide 19 indicates the beginning of the traversing triangle, which is formed by the reciprocating motion of a traversing yarn guide a traversing device 21.
  • a pressure roller 22 is arranged below the traversing device 21.
  • the pressure roller 22 abuts the circumference of a coil 23 to be wound.
  • the coil 23 is generated on a rotating winding spindle 24.
  • the winding spindle 24 is driven via the spindle motor 25 for this purpose.
  • the drive of the winding spindle 25 is in this case regulated in dependence on the rotational speed of the pressure roller 22 such that the peripheral speed of the coil and thus the take-up speed during the winding remains substantially constant.
  • a polymer melt is fed to the spinning head 1 and extruded through the spinneret 2 into a plurality of filaments 5.
  • the filament bundle is withdrawn from the winding device 20.
  • the filament bundle passes through the cooling shaft 6 within the cooling cylinder 4 with increasing speed.
  • the filament bundle is drawn into the confuser 9.
  • the confuser 9 is connected via the diffuser 10 to the vacuum generator 15:
  • the amount of air entering the cooling shaft 6 is proportional to the gas permeability of the wall 7 of the cooling cylinder 4.
  • the incoming air leads to a pre-cooling of the filaments, so that solidify the edge layers of the filament.
  • the air flow is due to the narrowest cross-section in the seam 8 under the action of the vacuum generator 15 accelerated so that the filament movement counteracting air flow is reduced or avoided.
  • a support of the filament movement is achieved, so that when stretching the filaments in the solidification only a reduced pull-off voltage effective is.
  • the relief of the pull-off voltage is dependent on the extent to which the braking air friction is compensated.
  • the aim is to accelerate the flow rate as possible in the range of the filament speed.
  • the filaments are solidified.
  • the filaments are further cooled.
  • the air flow is introduced via the diffuser in the screen cylinder 30, which is disposed within the vacuum chamber 11 and connected to the vacuum generator 15.
  • the air is then sucked through the nozzle 14 from the vacuum chamber 11 and discharged.
  • the filaments 5 emerge on the underside of the vacuum chamber 13 through the outlet opening 13 and run into the preparation device 16 a.
  • the preparation device 16 the filaments are brought together to form a thread 12.
  • the thread 12 is wound into the bobbin 23.
  • FIG. 2 a further embodiment of the spinning device according to the invention is shown.
  • the basic structure of the spinning device of Fig. 2 is substantially identical to the structure of the spinning device of Fig. 1. In this respect, reference is made to the preceding description to Fig. 1 at this point, and it will only the differences in the structure of the spinning device from Fig. 2 described.
  • a heating device 31 is disposed between the spinneret 2 and the cooling cylinder 4 directly on the spinning head 1.
  • the heating device 31 can be designed, for example, as a radiant heater or as a cylindrical resistance heater.
  • the additional heater 31 the filaments after the. Extrusion through the Nozzle holes of the spinneret 2 thermally treated, so that a delayed cooling occurs.
  • the spinning device shown in FIG. 2 has a delivery mechanism 17 between the preparation device 16 and the winding device 20.
  • the delivery mechanism is formed by two driven rollers 18.1 and 18.2.
  • the driven rollers are looped by the thread 12 S-shaped.
  • the peripheral speed of the rollers 18.1 and 18.2 is greater than the winding speed.
  • the thread can be wound up with a lower thread tension.
  • the wrap on the rollers are fixed in this embodiment.
  • the essential advantage of the additional delivery mechanism of the spinning device according to FIG. 2 is that the yarn tension variations occurring due to the traversing movement can propagate only up to the delivery mechanism. The withdrawal tension in the spinning zone remains unchanged, which leads to a uniform thread formation.
  • FIG. 3 shows a top view of an exemplary embodiment of a spinneret 2, as could be used, for example, in the spinning device according to FIG. 1 or FIG.
  • the nozzle bores 33 are arranged annularly in a row of holes 34.
  • the nozzle bores 33 are each mounted in the bore row 34 at the same distance from one another in the spinneret 2.
  • Concentric to the row of holes 34 further nozzle holes are introduced in a second row of holes 36.
  • the nozzle bores 33 of the two rows of holes 34 and 36 are in this case arranged offset from one another such that the nozzle holes of the inner row of holes 36 each between two adjacent nozzle holes of the outer hole row 34 are arranged.
  • This arrangement of the nozzle bores encloses a central inlet zone 35 which has no nozzle bores.
  • This design ensures that when using a frusto-conical confuser and a frusto-conical diffuser a flow profile is generated in the narrowest cross section, which acts substantially uniformly on each filament.
  • the flow profile of a through-flowed circular body in the middle has a maximum flow velocity which drops towards the edge regions.
  • the cooling cylinder 4 has a wall 7, which is formed as a perforated plate with two different perforations 29 and 26.
  • a small diameter formed hole 29 is introduced in an upper zone at the end of the cooling cylinder, which faces the spinneret 2.
  • the perforation leads in the upper zone to a schematically indicated inflow profile 28.
  • the inflow profile 28, which is symbolized by arrows, gives a measure of the amount of air entering the cooling shaft 6 the perforation 29 is equal within the upper zone.
  • the amount of air increases with increasing distance from the spinneret due to the negative pressure effect in Konfusor 9 and due to the increasing filament speed.
  • the wall 7 has a perforation 26 with a larger opening cross-section.
  • a larger amount of air will enter the spin shaft 6 in the lower zone. Again, the tendency is seen that with increasing distance from the spinneret, the incoming air quantity increases.
  • the inflow profile shown in Fig. 4 over the wall of the cooling cylinder is particularly suitable to obtain a slow and low precooling of the filaments. This leads in particular to a very uniform thread cross section. This makes it possible to match the amount of air to the heat treatment of the filaments. It can be advantageous pre-cooling and the formation of the cooling flow can be influenced.
  • the process according to the invention makes it possible to produce HOY yarns which have physical properties which permit direct further processing. Thus, properties are achieved that are otherwise attributed only to the FDY yarns. Typical strains and strengths of FDY yarns are about 30% and> 4 cN / dtex.
  • Table 1 shows two polyester yarns made by the process of this invention.
  • the take-off speed was set at 7,500 m / min. To support the movement of the filaments, an air flow was generated in the confuser, which reached a speed of about 2,500 m / min. Despite the high take-off speeds, strengths were achieved that were well above 4 cN / dtex.
  • FIG. 5 shows a diagram in which the strength of a polyester thread is plotted as a function of the take-off speed. Two curves are shown, marked with the lower case letters a and b, in both cases a polyester thread with a yarn denier of 83 dtex was spun.
  • the strength curve labeled a indicates the strength of a thread made by a method known in the art. It can be seen that just before reaching the take-off speed of 6,500 m / min, the strength collapses and decreases with increasing take-off speed.
  • the drop in tear strength indicates the overload of the yarn in this process.
  • the filaments of the thread are overloaded in the draw point, because here is an already too highly crystallized and thus frozen in its structure yarn is still stretched. Thus, even at a speed of> 6,500 m / min, single filament breaks occur in the methods known in the prior art.
  • the strength curve labeled b shows the course of the strength of a polyester thread, which was prepared by the process according to the invention. Despite the high take-off speed, a steady increase in strength can be seen. The invention thus makes it possible to produce a highly oriented yarn with higher take-off speeds. At the same time, the spinning reliability is maintained, even at take-off speeds of> 7,500 m / min. By appropriate measures, therefore, significantly higher take-off speeds can be achieved for the production of a highly oriented thread.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (21)

  1. Procédé destiné à la fabrication d'un fil hautement orienté (HOY) (12) à partir d'un matériau thermoplastique, dans lequel le matériau thermoplastique est fondu et extrudé en une multiplicité de filaments en forme d'écheveaux, dans lequel les filaments (5) sont retirés sous l'effet d'une tension de retrait, sont étirés durant la solidification et refroidis, dans lequel après la solidification les filaments (5) sont réunis en un fil (12) et dans lequel pour générer la tension de retrait le fil (12) et retiré à une vitesse de retrait prédéterminée et enroulé en une bobine (23), dans quel cas la tension de retrait est générée par une vitesse de retrait d'au moins 6500 m/min, caractérisé en ce qu'avant la solidification les filaments sont guidés à travers un goulot (9) ("Konfusor") et sont soutenus de manière telle dans leur mouvement qu'avant la solidification des tensions de traction sensibles supplémentaires, résultant des forces de frottement de l'air n'agissent pas sur les filaments (5) et en ce que durant la solidification pendant l'étirage une tension de retrait diminuée agit sur les filaments (5).
  2. Procédé selon la revendication 1, caractérisé en ce qu'après l'extrusion les filaments (5) sont guidés à travers un milieu de refroidissement et en ce qu'un flux de milieu de refroidissement soutenant le mouvement des filaments est généré directement avant la solidification des filaments (5).
  3. Procédé selon la revendication 2, caractérisé en ce que le flux de milieu de refroidissement a une vitesse d'écoulement qui est sensiblement identique à la vitesse de circulation des filaments (5) avant la solidification.
  4. Procédé selon la revendication 2, caractérisé en ce que le flux de milieu de refroidissement a une vitesse d'écoulement qui est plus élevée que la vitesse de circulation des filaments (5) avant la solidification.
  5. Procédé selon l'une des revendications 2 à 4, caractérisé en ce que le goulot (9) a sa section transversale la plus étroite sur le coté sortie et est raccordé à un diffuseur (10), lequel est soumis à une dépression pour générer le flux du milieu de refroidissement.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'après l'extrusion et avant la solidification les filaments (5) sont guidés à travers une gaine de refroidissement (6) qui est reliée à l'air ambiant par une paroi cylindrique (7) perméable à l'air.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que directement après l'extrusion les filaments (5) sont guidés à travers une zone de chauffage, dans laquelle les filaments (5) sont alimentés en une quantité de chaleur.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que la tension de retrait est générée par un dispositif d'embobinage (20), la vitesse de retrait étant déterminée par une vitesse d'embobinage.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la tension de retrait est générée par un dispositif d'alimentation agencé dans le trajet du fil en amont du dispositif d'embobinage (20), la vitesse de retrait du dispositif d'alimentation (17) étant plus élevée que la vitesse d'embobinage du dispositif d'embobinage (20).
  10. Procédé selon la revendication 9, caractérisé en ce que le dispositif d'alimentation (17) est formé par deux galets (18 ; 18.1 ; 18.2) entrainés qui sont enlacés en forme de S ou en forme de Z par le fil.
  11. Dispositif de filage pour le filage à l'état fondu d'un fil hautement orienté (HOY) à partir d'un matériau thermoplastique à l'état fondu, avec une filière (2) qui sur la face inférieure a une multiplicité de trous de buse pour extruder une multiplicité de filaments (5), avec un dispositif de refroidissement, avec un dispositif d'ensimage (16) pour réunir les filaments en un fil et avec un dispositif d'embobinage (20), caractérisé en ce que le dispositif de refroidissement a un goulot (9) parcouru par les filaments et un diffuseur agencé sur le coté sortie du goulot et en ce que le goulot et le diffuseur (10) ont respectivement une section transversale d'écoulement qui change en direction de trajet du fil, de sorte qu'une section transversale d'écoulement la plus étroite se trouve dans le joint de raccordement (8) entre le goulot (9) et le diffuseur (10), de sorte qu' avant la solidification des tensions de traction sensibles supplémentaires, résultant des forces de frottement de l'air, n'agissent pas sur les filaments (5).
  12. Dispositif de filage selon la revendication 11, caractérisé en ce qu'un cylindre de refroidissement (4) comprenant une paroi (7) perméable à l'air et enfermant les filaments (5) est agencé entre le goulot (9) et la filière (2).
  13. Dispositif de filage selon la revendication 11 ou 12, caractérisé en ce que le diffuseur (10) est raccordé à un générateur de dépression (15).
  14. Dispositif de filage selon la revendication 13, caractérisé en ce que sur le coté sortie le diffuseur (10) est raccordé à un tamis cylindrique (30) perméable à l'air qui à l'intérieur d'une chambre de dépression (11) enclave les filaments (5) et qui établit la connexion entre le générateur de dépression (15), raccordé à la chambre de dépression (11), et le diffuseur (10).
  15. Dispositif de filage selon l'une des revendications 11 à 14, caractérisé en ce que dans la section transversale la plus étroite le goulot (9) a un diamètre d'au moins 10 mm à maximalement 40 mm.
  16. Dispositif de filage selon l'une des revendications 11 à 15, caractérisé en ce que le goulot (9) et le diffuseur (10) sont réalisés respectivement en forme de tronc de cône, l'angle de cône du goulot (9) étant plus grand que l'angle de cône du diffuseur (10).
  17. Dispositif de filage selon l'une des revendications 12 à 16, caractérisé en ce qu'en direction de trajet du fil le cylindre de refroidissement (4) est subdivisé en une pluralité de zones ayant respectivement une perméabilité à l'air de la paroi (7) différente.
  18. Dispositif de filage selon l'une des revendications 11 à 17, caractérisé en ce que les trous de buse (33) de la filière sont agencés dans une ou dans une pluralité de rangées de perçages (34, 36), les perçages (33) d'une rangée de perçages ayant une distance égale les uns par rapport aux autres.
  19. Dispositif de filage selon l'une des revendications 11 à 18, caractérisé en ce qu'un dispositif d'alimentation (17) est agencé dans le trajet du fil entre le diffuseur (10) et le dispositif d'embobinage (20).
  20. Dispositif de filage selon la revendication 19, caractérisé en ce que le dispositif d'alimentation (17) a deux galets (18.1, 18.2), en ce qu'au moins un des galets (18.1, 18.2) est entraînable et en ce que les galets (18.1, 18.2) sont agencés l'un par rapport à l'autre de manière telle dans le trajet du fil qu'ils sont enlacés partiellement par le fil.
  21. Dispositif de filage selon l'une des revendications 11 à 20, caractérisé en ce qu'un dispositif de chauffage (31) pour le traitement thermique des filaments (5) est agencé entre la filière (2) et le cylindre de refroidissement (4).
EP99971872A 1998-11-09 1999-11-04 Procede et dispositif pour la production d'un fil hautement oriente Expired - Lifetime EP1045930B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19851448 1998-11-09
DE19851448 1998-11-09
PCT/EP1999/008420 WO2000028117A1 (fr) 1998-11-09 1999-11-04 Procede et dispositif pour la production d'un fil hautement oriente

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JP (1) JP2002529614A (fr)
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BR0312457B1 (pt) * 2002-07-05 2013-03-19 mÉtodo para fiar um fio multifilamentar a partir de um material termoplÁstico, fios multifilamentares de poliÉster, e, cordonel para pneu.
NL1029276C2 (nl) * 2005-06-17 2006-12-19 Desseaux H Tapijtfab Werkwijze ter vervaardiging van monofilamenten, alsmede een hieruit samengesteld kunstgrasveld.
PT103380B (pt) * 2005-11-09 2007-09-13 Univ Do Minho Linha de extrusão laboratorial para a produção de filme tubular convencional e biorientado, com comutação simples entre as duas técnicas
EP2162059B1 (fr) 2007-06-12 2021-01-13 Sotera Wireless, Inc. Moniteur de signaux vitaux et méthode pour mesurer la tension artérielle en utilisant des formes d'onde optique, électrique et de tension
IT1393810B1 (it) * 2009-04-29 2012-05-11 Technores S R L C O Studio Minicucci Pidatella & A Dispositivo per il trattamento di un filato, sistema di trattamento di un filato e metodo per il trattamento di un filato
CN102162145B (zh) * 2011-03-30 2015-05-20 仪征市仲兴环保科技有限公司 一种聚酯瓶片回料纺细旦吸湿排汗fdy涤纶长丝纤维的制备方法
CN102493008B (zh) * 2011-12-15 2016-05-11 大连合成纤维研究设计院股份有限公司 32头平行纺fdy纺丝设备
JP6204565B2 (ja) 2013-03-16 2017-09-27 ピーアールシー−デソト インターナショナル，インコーポレイティド 腐食防止ゾル−ゲル組成物
CN105612278B (zh) * 2013-09-26 2018-02-09 瑞来斯实业公司 用于使合成复丝纤维骤冷的系统、方法和设备
CN104451902A (zh) * 2014-12-19 2015-03-25 仪征市仲兴环保科技有限公司 一种超高染色性能的聚酯回料再生多孔细旦POY75D/72f长丝的制备方法
JP2018523029A (ja) * 2015-08-08 2018-08-16 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフトＯｅｒｌｉｋｏｎ Ｔｅｘｔｉｌｅ ＧｍｂＨ ＆ Ｃｏ． ＫＧ 合成糸を溶融紡糸する方法および装置
CN111534869A (zh) * 2020-05-10 2020-08-14 西南大学 一种微型化湿法纺丝牵伸装置
CN111893588B (zh) * 2020-07-07 2021-06-08 诸暨永新色纺有限公司 冰凉感抗菌poy丝的制作方法
CN112095163B (zh) * 2020-09-07 2022-01-21 军事科学院系统工程研究院军需工程技术研究所 一种生物基聚酰胺短纤维聚纺牵定一体化成型制备方法及设备
CN113249803B (zh) * 2021-04-30 2022-11-01 诸暨市新丝维纤维有限公司 一种用于生产hoy丝的超高速纺丝装置
CN113969430A (zh) * 2021-10-25 2022-01-25 嘉兴市华星纺织有限公司 一种差别化pet丝织物的制备装置及方法
CN114737268A (zh) * 2022-06-10 2022-07-12 浙江锦盛控股集团有限公司 一种仿羊毛锦纶fdy卷毛丝的生产方法及其加工设备

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KR100619475B1 (ko) 2006-09-05
CN1288491A (zh) 2001-03-21
TW538150B (en) 2003-06-21
CN1109780C (zh) 2003-05-28
EP1045930A1 (fr) 2000-10-25
WO2000028117A1 (fr) 2000-05-18
DE59913596D1 (de) 2006-08-03
US6478996B1 (en) 2002-11-12
KR20010024840A (ko) 2001-03-26
JP2002529614A (ja) 2002-09-10

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