EP0957187A2 - Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques - Google Patents

Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques Download PDF

Info

Publication number
EP0957187A2
EP0957187A2 EP99109026A EP99109026A EP0957187A2 EP 0957187 A2 EP0957187 A2 EP 0957187A2 EP 99109026 A EP99109026 A EP 99109026A EP 99109026 A EP99109026 A EP 99109026A EP 0957187 A2 EP0957187 A2 EP 0957187A2
Authority
EP
European Patent Office
Prior art keywords
cooling unit
filaments
titer
cooling
dtex
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Withdrawn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
EP99109026A
Other languages
German (de)
English (en)
Other versions
EP0957187A3 (fr
Inventor
Manfred Dr. Rer. Nat. Stein
Christian Dipl. Masch.-Ing.(Eth) Baumann
Ulrich Dipl.-Ing. Kemp (FH)
Gunter Dipl.-Ing. Goosens (FH)
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
EMS Inventa AG
Inventa AG fuer Forschung und Patentverwertung
Inventa Fischer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7867844&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0957187(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EMS Inventa AG, Inventa AG fuer Forschung und Patentverwertung, Inventa Fischer AG filed Critical EMS Inventa AG
Publication of EP0957187A2 publication Critical patent/EP0957187A2/fr
Publication of EP0957187A3 publication Critical patent/EP0957187A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

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

Definitions

  • the present invention relates to an apparatus and a method for producing Microfilament yarns made of thermoplastic polymers with high titer uniformity, (Uster value) which are preferably intended for textile further processing.
  • Filaments and filament yarns are made from thermoplastic polymers generally by the melt spinning process.
  • the polymer is delivered to the individual by spinning pumps Spinnerets distributed. After the melt has escaped from the capillary holes of the nozzles in Form of fine filaments, these are cooled with the help of a cooling medium, afterwards summarized or bundled, loaded with spin finish and wound up.
  • the cooling of the filaments is in the overall process of producing a polymer thread a very essential process step. Through him the mass uniformity, the Quality of the dyeing, as well as the textile properties such as strength and elongation of the Yarn affects.
  • the usual filament yarns for textile processing with a total denier of 84 dtex or 167 dtex are then no longer made up of just 36 or 72 filaments, but instead according to the current state of the art from approx. 100 to 200 individual filaments.
  • the filaments are discharged through after exiting the nozzle plate central blowing system cooled.
  • the filaments are made from a spinneret plate spun, the capillary holes on one or more preferably concentric Circles are arranged.
  • the diameter of the smallest circle must be sufficient be large around the cooling device, the so-called blowing candle, centrally below the spinneret, to be able to install.
  • This blow-on candle consisting of a tubular, porous, gas-permeable hollow body, cooling air is supplied from a pipe end, the opposite pipe end is closed. The cooling air flows through the porous candle radially outwards and thus cools the filaments arranged concentrically around them.
  • the filaments strip a ring to apply the Spin finish. Finally, they are combined into a strand below the blow candle.
  • the filaments spun in this way are suitable for the production of staple fibers.
  • the patent specification DE 196 53 451 describes a central blower for the production of technical yarns from a large number of individual filaments with high capillary titers of over 1 dtex / fil. which are characterized by a low shrinkage and a high modulus.
  • No. 3,969,462 describes the production of coarse-titer technical polyester yarn using a central cooling unit, which begins with an approximately 15 to 60 cm long non-blown but externally heated zone in order to improve the Uster uniformity of the yarn.
  • DE 38 22 571 A1 describes a central blowing device with an annular slot diaphragm, which is arranged between the nozzle plate and the blowing candle. It is pointed out that in practice, without such an arrangement, malfunctions frequently occur due to filament breaks and the mass uniformity of the filaments remains insufficient in comparison to cross-flow blowing.
  • the devices known from the prior art are indeed suitable for production of products with a high throughput, such as those used in the manufacture of Staple fibers or for the production of technical yarns are necessary, but they are for the production of microfilament continuous yarns, in which the throughput per nozzle is essential less is insufficient.
  • the throughput per nozzle is essential less is insufficient.
  • the known devices were used only for heavy titers well above 1 dtex / fil or in fiber spinning processes with very high number of holes in a nozzle plate.
  • DE 37 08 168 C2 for example, over 700 holes are mentioned per nozzle plate.
  • fiber spinning processes sufficient heat is supplied to the spinneret plate through the melt mass due to the high melt throughput required.
  • the specialist makes use of higher ones, especially in the case of cross-flow blowing Spinning or melt temperatures. Affect higher temperatures but significantly increase the reliability of the process, or increase it the frequency of interruptions due to the increased thermal decomposition rate the polymer melt in the spinning beam and nozzle pack and the increasing impurities on the surface of the spinneret plate.
  • the upper limit of the hole density known from the prior art thus remains below 30 holes / cm 2 . Even with this device, higher hole densities cannot be achieved without sacrificing quality and spinning safety.
  • the object of the present invention was therefore based on the spinning of microfilament yarns made of thermoplastic polymers with a single capillary titer less than 1 dtex / filament using a suitable device, in particular the process step of cooling so that the number of spinning disorders is reduced and microfilament yarns with improved textile mechanical properties and more uniform Dyeability results, reducing equipment and production costs as much as possible are.
  • the object is achieved by the characterizing features of a device for producing microfilament yarns from thermoplastic polymers with a maximum titer of 500 dtex total and individual filament titer of a maximum of 1 dtex, preferably a maximum of 0.8 dtex and high titer uniformity according to claim 1 , by a method for producing these microfilaments according to claim 24 using a device according to the invention and the microfilaments thus produced according to claim 37 .
  • the device according to the invention which includes a suitable active central cooling unit for the production of Micro filament yarns up to a maximum of 500 dtex, preferably up to 250 dtex, with a single capillary titer of less than 1 dtex / filament, preferably less than 0.8 dtex / filament, very high Allow hole densities to be achieved.
  • the device according to the invention with the integrated cooling unit ensures for spinneret plates with special high number of holes compared to cross-flow blowing a very uniform cooling of filaments.
  • the device according to the invention solves the problem in particular in that a spinneret plate which has a very high hole density of up to 40 holes per cm 2 of effective exit surface (of the hole rows) with a diameter of up to 110 mm and up to 600 capillary bores which is customary in the prior art ) is combined with an active cooling unit, which allows the emerging filaments to start cooling directly under the nozzle at a distance S and continues on an air cushion formed by a cooling air stream that exits at a constant speed over the entire cooling length until solidification and preparation.
  • the inventive device is shown in Figures 1a and 1b schematically.
  • the cooling unit 5 is fixed at a distance S of a maximum of 35 mm with a centering mandrel in a nozzle-symmetrical manner centrally under the spinneret plate 2 .
  • This distance S is variably adjustable depending on the titer.
  • the space in the geometric extension of the candle diameter is thermally insulated with the distance S or provided with additional heating or cooling elements.
  • the isolation largely allows not only the temperature of the surface of the spinneret plate constant, but also 5 to 10 ° C below the temperature of the emerging Keep melt.
  • Such insulation is preferably made of a low thermal material Conductivity.
  • the insulation is integrated in the spinneret plate 2 .
  • the annular or circular arrangement of the capillary bores in the spinneret plate 2 is interrupted in preferred embodiment variants or divided into groups in order to facilitate the separate assembly of filaments 4 with the aid of separate thread guiding elements in separate filament bundles or the area above the entry device 7 of the cooling unit 5 to keep free of filaments 4 .
  • the active cooling unit 5 consists of a tubular, air-permeable fabric (FIG. 8) that expands biconically under the pressure of the emerging cooling air or a perforated tubular part with an air supply on one side (FIG. 7) , while the other end on the spinneret side is closed.
  • the cooling unit consists of a tube part directed upwards from the insertion device against the spinneret plate 2 and a tube part directed downwards in the course of the filament (FIGS. 10a, b).
  • the lower tube part is designed to converge in a conical, pointed manner downwards.
  • the cooling unit 5 can be varied both in length and in diameter and can therefore be adapted to spinning conditions, in particular the spinning speed and the spinning titer of the filaments.
  • the preferred diameters are in the range between 10 and 106 mm and are particularly advantageously 1 to 40 mm smaller than the inner circle of the annular capillary bores in the spinneret plate 2 .
  • the length, in particular the cooling effective length Lk, can be adjusted by the length of the perforated part and optionally by additional non-perforated or differently perforated intermediate rings. It is preferably in the range between 50 and 1000 mm.
  • the cooling unit 5 is designed in special variants as a bellows or pluggable (Fig.9a, b) .
  • the perforation of the cooling unit 5 is carried out by hole size and shape, by spacing of the holes, the hole depth or wall thickness of the unit and its orientation, and by different execution of these parameters over the length of the unit for regulating the blown air, which is in the range of 15 to 200 ° C, or preferably from 18 ° C to 10 ° C below the T G of the spun polymer and the exit rate is also controllable.
  • the blowing air is only tempered before it exits the cooling unit 5 . This can be done uniformly or in different areas with different temperatures.
  • 5 displacement bodies for regulating the speed of the blowing air advantageously between 0.05 and 0.7 m / sec, or devices for using blowing air in partial areas of the cooling unit 5 with different temperatures are installed inside the cooling unit.
  • the cooling unit 5 is horizontally through the arm of a retractor 7 and vertically or preferably on a vertical circular Einschwenkweg 13 under the spinning nozzle plate 2 can be positioned, or completely out of the Filamentverlauf swung.
  • the pivoting in and out can be controlled mechanically, pneumatically or electronically and preferably combined with a thread monitor.
  • the cooling unit swings out under its own force of gravity or spring.
  • the arm of the retraction device 7 in which the air supply to the cooling unit 5 is also integrated, preferably has a narrow, preferably rectangular or oval cross section.
  • the arm is provided with circular (FIG. 2a) or slit-shaped air outlet openings, which allow a filament- repellent air flow to be created to protect the device from impinging and adhering filaments.
  • the openings are advantageously arranged uniformly in a narrow grid or, for reasons of saving air, only at the critical points, ie at the points at which contact with the filaments 4 must be avoided.
  • the arm of the retractor 7 is protected by a specially designed, for example, drop-shaped thread guides (9 in Figure 3) prior to contact with filaments of which the contact for all the filaments on a small as possible, precisely defined surface is almost identical .
  • annular positioning thread guide 6 and 10 ( FIG. 4 ) with a sufficiently large diameter is advantageous.
  • This thread guide is designed either as a dry thread guide or as a preparation applicator.
  • the thread-contacting ring 10 of the dry thread guide 6 consists of wear-resistant material, for example ceramic aluminum oxide or a similarly resistant coated surface on a metallic background.
  • FIG. 5a shows a further embodiment of the annular positioning thread guide 10 .
  • a gas stream is guided through an annular gap, whereby the individual filaments 4 run on a gas cushion over the entire ring circumference and a direct contact between the positioning thread guide 6 and the filaments 4 is largely prevented.
  • the positioning thread guide 6 consists of a cone which widens downwards in the direction of the filament in the shape of a funnel or trumpet in accordance with FIG. 5b.
  • the air carried by the filaments 4 is accelerated on this cone and guided against the filaments 4 .
  • An air cushion is formed by this deflected drag air, so that the direct contact between the filaments 4 and the thread guide is largely prevented.
  • the device are in the direction of the filament run air scraper plates attached shortly before the preparation order, which an undisturbed and thus ensure even application of the preparation.
  • one or more preparation applicators 11 which are arranged one behind the other in the thread running direction and supplied by a pump with a uniform amount of spin preparation, and are adjustable in height, are provided as a further embodiment for combining the filaments and applying the preparation.
  • the Spray nozzles for working from the inside out in the center as well as outside advantageous for inward spraying.
  • a thread monitor is provided that registers a filament break and automatically and immediately releases a lock, whereby the cooling unit, preferably by their own gravity removed from the filament path and a contamination or Damage to the blow candle is reliably prevented.
  • the preferred filament single titer in this process is between 0.1 and 1 dtex, preferably between 0.3 and 0.8 dtex and the particularly preferred total titer of the yarn at a maximum of 250 dtex.
  • the cooling of the spun filaments by the exactly centered cooling unit starts a distance S below the spinneret plate, which is a maximum of 35 mm and preferably 5 to Is 10 mm. It is particularly advantageous if this distance S from the environment is isolated. In preferred process variants, this distance S is heated or cooled.
  • the device according to FIG. 1 is inserted into the recess at the necessary distance S.
  • Process variants with a heated intermediate space are particularly advantageous if deposits of monomers appear when the polymer is spun in the nozzle plate area or separate oligomers of the spinning material.
  • a heater which disturbing accumulation of deposits at the top of the cooling unit reduced, increases the spinning safety in an advantageous manner.
  • the advantageous speeds of the blowing air measured at a distance from the innermost hole circle diameter of the capillary bores from the center of the cooling unit, are between 0.05 and 0.7 m / sec, preferably between 0.1 and 0.5 m / sec, and are at Titer and spinning speed of the filaments matched.
  • a suitable speed profile of the blown air along the cooling unit 5 is particularly important.
  • the type and distribution of the perforation are in particular the cooling effective length of the cooling unit varies depending on the titer.
  • the effective cooling length Lk of the blowing is at least 50 mm, maximum 1000 mm and is preferably between 100 and 500 mm.
  • the blowing air is advantageously used at a temperature between 15 and 200 ° C, in preferred process variants between normal room temperature and 45 ° C. In other variants, it is heated to a maximum of 30 to a maximum of 10 ° C. below the T G of the spun polymer.
  • only the blown air is used for the upper outlet area the so-called blow candle, preferably for the upper 1/3 to 2/3 of the cooling length Lk, tempered.
  • the diameter of the cooling unit 5 of the device according to the invention essentially depends on the nozzle geometry. Usual diameters of the spinneret plates are in a range from 70 mm to 110 mm.
  • a difference in radius from a minimum of 1 mm up to 40 mm, but preferably at least 2 mm up to a maximum set mm 30th results in a preferred range from a minimum of 10 to a maximum of 106 mm. Diameters up to a maximum of about 60 mm are particularly preferred.
  • FIG. 8 Another special process variant uses a cooling unit made of a tubular, heat-resistant, air-permeable fabric, which inflates due to the excess gas pressure and can be adapted to the course of the filaments in a biconical shape. (Fig. 8). Due to the particularly small distance to the filament bundle over the course of the cooling length Lk, an excellent uniformity of the filaments is achieved.
  • the cooling effective length Lk is determined by the coarsest titer of the process. Important is that the solidification point of the cooled filament bundle before the first touch lies with the device.
  • This point is advantageously at least 10 mm, but preferably at least 40 mm before End of length Lk set.
  • the change in length Lk in the invention Process of producing different products and optimizing the thread tension set.
  • the cooling unit is thus adapted to the different nozzle geometries, titer and filament numbers and thus to the changing aerodynamics over the length Lk.
  • the use of a bellows version (Fig. 9a) and a plug-in version (Fig. 9b) that is infinitely adjustable in length has proven to be particularly suitable.
  • the advantageous length is between 50 and 1000 mm, but preferably in the range from 100 mm to 500 mm.
  • FIGS. 11, 12 and 13 A multiple arrangement of a preferred embodiment of the device is shown schematically in FIGS. 11, 12 and 13 .
  • This consists of at least one cooling unit 5 , which can be swung out completely from the area of the running filaments 4 . In its retracted operating position, it engages through a centering mandrel arranged at its tip in a centering hole made centrally in the spinneret plate 2 (FIG. 13) .
  • FIG. 12 shows the service position with the swung-out cooling units, in which the individual movement phases can be followed.
  • the arrangement is characterized by a circular swivel-in path 13 , the axis 14 of which runs within the cross-section of an air supply duct 15 which can be rotated with the swivel movement, at least one, but preferably any larger number, particularly preferably 2 to 12 cooling units 5 , by a common swiveling in and out Extending mechanism can be swung into a corresponding number of bundles of filaments 4 , by fastening them together on the air supply duct 15 by means of a nozzle or insertion device 7 which conducts the blown air from the air supply duct 15 to the cooling unit 5 and these are flat at least in the area of the filament path, close to the positioning thread guide 6 is designed and preferably has a narrow rectangular cross section.
  • the pivoting movement is transmitted externally by a lever 16 , which in turn is actuated by hand by a drive (not shown) or, in a preferred embodiment, by a handle 17 and describes the bow 29 , with a second one in each bearing point 18 on the levers 16
  • Lever 19 is articulated, which carries a plowshare-like thread divider 21 per cooling unit 5 on a cross member 20 connected to it, so that all thread dividers 21 can be pivoted together about the pivot axis 28 extending through the bearing points 18 and in the pivoted-out position of the cooling units 5 by their gravity 13 at the left end of their common swivel path about the swivel axis 28 of the thread divider 21 end point 22, which marks the active position, are held, which swivels with the swivel-in movement of the cooling units 5 on its arc 23 about axis 14 and in front of the Cooling unit 5 immersed in the filament bundle 4 , the bundle part lt, the individual filaments are later
  • the cooling device 5 swings automatically out of the area of the running filaments, due to its gravity, a spring tensioned when swiveling in, or a drive fed with external energy, into a service position according to FIG. 12 Mechanics and gear arrangement required for this are not part of the present invention and are therefore not shown for reasons of clarity.
  • spinneret plates 2 are used which are advantageously thermally insulated in their central area around the centering holes, which is preferably done by a recess 26 which filled with heat-insulating material or, in another embodiment, evacuated, if necessary, heated and sealed off by a preferably welded-in cover 27 .
  • the air supply line can be adjusted by a lockable throttle device 12 for each of the individual entry devices 7 or connecting pieces.
  • the filaments are bundled after the cooling and solidification of thread guide elements and subsequently subjected to preparation by contact or spraying on, thread guide and / or preparation unit at least 1 to 40 mm before the end of the cooling effect Length Lk can be positioned. It is preferred that for the spun Yarn considered advantageous convergence point.
  • the concentric around the cooling unit Arranged filaments can in the area of the retraction device in unprepared Unintentionally touching the condition, which leads to the fact that it is opposite the remaining filaments have changed properties, which is undesirable.
  • this contact is prevented by using a spinneret plate which has no capillary bores in the area above the entry device, the concentric circles of the nozzle holes are therefore interrupted at this point.
  • a special embodiment of the cooling device according to the invention provides for the arrangement of a thread guide below the air supply according to FIG. 3 , which has a drop-like shape in the area of filament contact with the insertion device, whereby the contact takes place only on this thread guide and is almost identical for all filaments of a bundle.
  • Another process variant is the generation of an air cushion from the air accompanying the filaments by the arrangement of friction-reducing structures or embossments in the form of scales (FIG. 2b), diamonds, diagonals, etc. on the surface of the arm of the entry device in the area of the Filament contact before, whereby direct contact between filaments and arm of the retractor is largely prevented.
  • FIG. 2 b shows an example of how this device is provided with fine openings in the area of the filaments that are being passed, which openings create an air cushion through the air that prevents the filaments from coming into contact with the device.
  • the outlet opening of the air is designed so that it flows evenly radially.
  • a special embodiment provides that the air in the direction of the filament running direction is directed.
  • Another method variant is the application of the spin preparation according to FIG. 4 after the filaments have been bundled by one or more preparation applicators 11 arranged one behind the other in the thread running direction and supplied by a pump with a uniform amount of spin preparation.
  • the preparation can be done both from the inside out as well as sprayed in from the outside inwards.
  • a gas flow is guided through the annular gap in a positioning thread guide, as a result of which the individual filaments run on a gas cushion over the entire ring circumference and the friction between the positioning thread guide and the filaments is reduced.
  • a positioning thread guide is used from a cone which widens downward in the direction of the filament in the direction of the filament according to FIG. 5b . The air carried by the filaments is deflected on this cone and directed against the filaments. This deflected drag air forms an air cushion so that the direct friction between the filaments and the thread guide is avoided.
  • the filaments are fed directly to the preparation job 11 without prior contact.
  • the filament bundle is divided according to FIG. 7 and the resulting filament bundles are combined, treated and wound up separately.
  • This procedure enables the equipment costs and thus the manufacturing costs without significantly reducing quality.
  • the hole density of the spinneret plates 2 in contrast to 8 holes / cm 2 for cross-flow blowing and 25 holes / cm 2 for a device according to the patent specification EP 0 646 189 B1 according to the invention Processes up to 40 holes / cm 2 are preferred but can be increased up to 35 holes / cm 2
  • FIG. 1 The principle of the method according to the invention is shown in FIG. 1 :
  • the polymer melt is fed via the melt line 1 to the spinneret plate 2 in the spinning beam 3 .
  • the melt then emerges in the form of filaments 4 from the capillary bores of the spinneret plate 2 .
  • these are guided concentrically along the cooling unit 5 of the device according to the invention, combined and then wound in the winding unit 8 .
  • a positioning thread guide 6 with an annular, geometric arrangement fixes the filaments 4. At the same time, it can also be used to prepare the filaments 4 .
  • Example 1 central cooling device shows how the quality in relation to the uniformity (Uster values and Uster 1/2 values) and the quality (quality number) significantly improves compared to Comparative Example 2 (cross-flow blowing).
  • the values shown in Example 3 confirm that, using the device according to the invention, the quality of a yarn consisting of a great deal of microfilaments is significantly better than that mentioned in Comparative Example 5 , using a device according to the prior art.
  • Example 4 makes it clear that using the method according to the invention with the device according to the invention increases the number of holes and achieves a much better quality than when using a device according to the prior art. With the help of cross-flow blowing, it was not possible to manufacture such high-capillary products with the same nozzle diameter. This better quality of the method according to the invention in connection with the device according to the invention can be used to increase the speed of the method compared to systems from the prior art.
  • the number of holes mentioned in Examples 3 and 5 is also suitable for spinning two individual bundles of 144 filaments from this spinneret plate.
  • the spinneret plate of Example 2 would be suitable for spinning three individual bundles of 120 filaments each.
  • microfilament yarns have so far, despite their advantages for the Consumers can not enforce to the expected extent.
  • the main reasons for this are the difficult controllability of uniform dyeing of such yarns in the Comparison to yarns in the normal filament titer range and the inevitably reduced Production speed of the further processing.
  • the Uster unevenness is an essential parameter for the quality assessment of a filament yarn with regard to the expected uniformity the filament titer, the textile-physical properties and the dyeing of this Yarns in the finished fabric.
  • As a parameter for one The Uster value expressed as a percentage, can be used for easy dye processing U1 ⁇ 2.
  • For yarns in the normal filament titer range here Usually values for U from 0.40 to 0.70% and for U1 ⁇ 2 from 0.25 to 0.65% are reached. At No problems of dyeing are generally observed in such yarns.
  • Microfilament devices spun according to the prior art are inflated Values from 0.70 to 0.95 are common.
  • Filarnentarns succeeds in the dye-safe range of 0.25 to 0.70% for U1 ⁇ 2 to produce.
  • An additional advantage of the method according to the invention is the increase the cleaning cycle time of the nozzle surface by up to 45% due to lower surface temperatures the spinneret plate.
  • the surface temperature is homogeneous over the whole Spinneret plate can be lowered up to 5 ° C, preferably even up to 10 ° C.
  • the lower temperature of the spinneret causes the thermal decomposition rate the polymer melt emerging from the capillary bores is reduced on the surface and thereby extend the nozzle cleaning intervals.
  • the resulting higher thread tension stabilizes the filaments and thus leads to increased uniformity or a very low Uster value.
  • the use of the device according to the invention in the method according to the invention improves the textile-physical yarn properties.
  • the so-called quality number in particular also increases at a constant production speed and the Cv elongation and the Cv strength are also improved.
  • the process according to the invention is outstandingly suitable for textile microfilament yarns which are to be further treated in a special way.
  • the filament bundle can be additionally swirled before winding and, if necessary, subjected to a further preparation.
  • the filament bundle is heated by means of godets before winding or chilled and stretched, shrunk, crimped at the same time or subsequently and / or should be swirled.
  • thermoplastic Polymers used, those of polyamide, polyester or polyolefins preferred are.
  • microfilament yarns that are used in an additional process step stretched, swirled, shrunk, crimped or at particularly high process speeds to be further processed to highly oriented filament yarns.
  • This method step is advantageously integrated into the method according to the invention before winding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
EP99109026A 1998-05-14 1999-05-07 Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques Withdrawn EP0957187A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19821778A DE19821778B4 (de) 1998-05-14 1998-05-14 Vorrichtung und Verfahren zur Herstellung von Mikrofilamenten von hoher Titer-Gleichmäßigkeit aus thermoplastischen Polymeren
DE19821778 1998-05-14

Publications (2)

Publication Number Publication Date
EP0957187A2 true EP0957187A2 (fr) 1999-11-17
EP0957187A3 EP0957187A3 (fr) 2000-08-16

Family

ID=7867844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109026A Withdrawn EP0957187A3 (fr) 1998-05-14 1999-05-07 Dispositif et procédé pour la fabrication de fils microfilaments avec haute regularité de titre à base de polymères thermoplastiques

Country Status (8)

Country Link
US (1) US6174474B1 (fr)
EP (1) EP0957187A3 (fr)
JP (1) JPH11350238A (fr)
KR (1) KR19990088232A (fr)
CN (1) CN1105196C (fr)
DE (1) DE19821778B4 (fr)
TR (1) TR199901078A2 (fr)
TW (1) TW493017B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1231302A1 (fr) * 2001-02-07 2002-08-14 Neumag GmbH & Co. KG Dispositif pour le filage au fondu et refroidissement de faisceaux de filaments
EP1275756A2 (fr) * 2001-07-12 2003-01-15 Neumag GmbH & Co. KG Dispositif pour le filage au fondu et refroidissement de faisceaux de filaments
WO2004009883A1 (fr) * 2002-07-24 2004-01-29 Uhde Inventa-Fischer Ag Procede de filage a chaud de microfilaments de polyester avec un titre maximal de 0,7 dtex et microfilaments polyester produits selon ledit procede
EP1491663A1 (fr) * 2003-06-23 2004-12-29 Nan Ya Plastics Corporation Procédé pour la production de multifilaments en polyester ayant un faible denier et fils multifilaments en polyester ayant un faible denier
EP1491664A1 (fr) * 2003-06-23 2004-12-29 Nan Ya Plastics Corporation Procédé pour la production de filaments fins et creux en polyester, et fils fins et creux en polyester
WO2005014900A1 (fr) * 2003-07-18 2005-02-17 Saurer Gmbh & Co. Kg Dispositif de filature par fusion, refroidissement et d'enroulement
US6884053B2 (en) 2001-05-25 2005-04-26 Georg Sahm Gmbh & Co. Kg Apparatus for producing a multifilament yarn from a thermoplastic polymer
EP2518196A1 (fr) * 2007-05-10 2012-10-31 Kolon Industries, Inc. Faisceau de filaments non-tordus

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6832904B2 (en) * 2002-08-15 2004-12-21 Wellman, Inc. Apparatus for cooling and finishing melt-spun filaments
US7014441B2 (en) * 2002-11-01 2006-03-21 Kimberly-Clark Worldwide, Inc. Fiber draw unit nozzles for use in polymer fiber production
EP1467005A1 (fr) * 2003-04-12 2004-10-13 Saurer GmbH & Co. KG Procédé et dispositif pour le filage au fondu et refroidissement d'un faisceau de filaments
WO2005054552A1 (fr) * 2003-12-04 2005-06-16 Young-Ho Choi Appareil de fabrication de fil chimique, filtre de refroidissement, buse et unite d'isolation d'air de trempe places dans celui-ci
JP2005220274A (ja) * 2004-02-09 2005-08-18 Shin Etsu Chem Co Ltd 高分子化合物、レジスト材料及びパターン形成方法
KR101252848B1 (ko) * 2004-04-10 2013-04-09 엘리콘 텍스타일 게엠베하 운트 코. 카게 여러 멀티얀 실을 용융 방사하기 위한 장치와 방법
TWI352753B (en) * 2004-10-05 2011-11-21 Barmag Spinnzwirn Gmbh Process and apparatus for the production of tapes
DE102005054653B4 (de) * 2005-11-11 2009-09-10 Uhde Inventa-Fischer Gmbh & Co. Kg Vorrichtung und Verfahren zur Herstellung schmelzgesponnener Filamente
JP4760441B2 (ja) * 2006-02-23 2011-08-31 東レ株式会社 溶融紡糸装置および溶融紡糸方法
US20080006970A1 (en) * 2006-07-10 2008-01-10 General Electric Company Filtered polyetherimide polymer for use as a high heat fiber material
US9416465B2 (en) * 2006-07-14 2016-08-16 Sabic Global Technologies B.V. Process for making a high heat polymer fiber
CN101646810B (zh) * 2007-03-23 2012-07-04 欧瑞康纺织有限及两合公司 用于熔融纺造、处理和卷绕合成长丝的方法和设备
JP5347236B2 (ja) * 2007-05-08 2013-11-20 三菱電機株式会社 半導体光素子の製造方法
US20130251992A1 (en) * 2010-11-29 2013-09-26 Toray Industries, Inc. Ultrafine polyamide fiber, and melt-spinning method and device therefor
WO2017025372A1 (fr) * 2015-08-08 2017-02-16 Oerlikon Textile Gmbh & Co. Kg Procédé et dispositif pour le filage à l'état fondu d'un fil synthétique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611748A2 (fr) * 1985-09-18 1988-09-09 Inventa Ag Dispositif pour le refroidissement et la preparation de fils files en fusion
EP0334604A2 (fr) * 1988-03-24 1989-09-27 Mitsui Petrochemical Industries, Ltd. Méthode et dispositif pour refroidir les filaments filés au fondu
EP0408994A1 (fr) * 1989-07-10 1991-01-23 Rhône-Poulenc Viscosuisse SA Procédé pour la fabrication de fil non texturé
WO1992001093A1 (fr) * 1990-07-06 1992-01-23 Deutsche Engineering Der Voest-Alpine Industrieanlagenbau Gmbh Procede et dispositif de production de fils ou fibres en matiere plastique a partir de polymeres, notamment a partir de polyamide, polyester ou polypropylene
JPH07278940A (ja) * 1994-02-17 1995-10-24 Nippon Ester Co Ltd 多孔紡糸口金及びこの紡糸口金を用いた極細マルチフィラメント糸の溶融紡糸方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969462A (en) * 1971-07-06 1976-07-13 Fiber Industries, Inc. Polyester yarn production
US3858386A (en) * 1971-07-06 1975-01-07 Fiber Industries Inc Polyester yarn production
CH667676A5 (de) * 1985-09-18 1988-10-31 Inventa Ag Vorrichtung zum abkuehlen und praeparieren von schmelzgesponnenem spinngut.
CH673659A5 (fr) * 1987-03-05 1990-03-30 Inventa Ag
DE3822571A1 (de) * 1988-07-04 1990-02-01 Hoechst Ag Spinnverfahren und vorrichtung zur durchfuehrung desselben
IT1227263B (it) * 1988-10-03 1991-03-28 Filteco Spa Apparecchiatura e metodo di filatura per estrusione
CH678433A5 (fr) * 1989-01-30 1991-09-13 Schweizerische Viscose
ES2104898T3 (es) * 1991-01-29 1997-10-16 Du Pont Preparacion de filamentos finos de poliester.
US5536157A (en) * 1991-03-04 1996-07-16 Ems-Inventa Ag.G. Apparatus for cooling melt-spun filaments
DE19544662A1 (de) * 1995-11-30 1997-06-05 Rieter Automatik Gmbh Schmelzespinnvorrichtung
JPH1018122A (ja) * 1996-07-01 1998-01-20 Tetra Internatl Kk 溶融紡糸方法
DE19653451C2 (de) * 1996-12-20 1998-11-26 Inventa Ag Verfahren zur Herstellung eines Polyester-Multifilamentgarnes
US5935512A (en) * 1996-12-30 1999-08-10 Kimberly-Clark Worldwide, Inc. Nonwoven process and apparatus
DE19716394C1 (de) * 1997-04-18 1998-09-03 Inventa Ag Verfahren und Vorrichtung zur passiven verzögerten Abkühlung von Spinnfilamenten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611748A2 (fr) * 1985-09-18 1988-09-09 Inventa Ag Dispositif pour le refroidissement et la preparation de fils files en fusion
EP0334604A2 (fr) * 1988-03-24 1989-09-27 Mitsui Petrochemical Industries, Ltd. Méthode et dispositif pour refroidir les filaments filés au fondu
EP0408994A1 (fr) * 1989-07-10 1991-01-23 Rhône-Poulenc Viscosuisse SA Procédé pour la fabrication de fil non texturé
WO1992001093A1 (fr) * 1990-07-06 1992-01-23 Deutsche Engineering Der Voest-Alpine Industrieanlagenbau Gmbh Procede et dispositif de production de fils ou fibres en matiere plastique a partir de polymeres, notamment a partir de polyamide, polyester ou polypropylene
JPH07278940A (ja) * 1994-02-17 1995-10-24 Nippon Ester Co Ltd 多孔紡糸口金及びこの紡糸口金を用いた極細マルチフィラメント糸の溶融紡糸方法

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1231302A1 (fr) * 2001-02-07 2002-08-14 Neumag GmbH & Co. KG Dispositif pour le filage au fondu et refroidissement de faisceaux de filaments
US6893243B2 (en) 2001-02-07 2005-05-17 Saurer Gmbh & Co. Kg Device for melt spinning and cooling a filament bundle
US6884053B2 (en) 2001-05-25 2005-04-26 Georg Sahm Gmbh & Co. Kg Apparatus for producing a multifilament yarn from a thermoplastic polymer
DE10125480B4 (de) * 2001-05-25 2006-05-11 Georg Sahm Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung eines Multifilament-Garns aus einem thermoplastischen Polymer
EP1275756A2 (fr) * 2001-07-12 2003-01-15 Neumag GmbH & Co. KG Dispositif pour le filage au fondu et refroidissement de faisceaux de filaments
EP1275756A3 (fr) * 2001-07-12 2003-03-26 Neumag GmbH & Co. KG Dispositif pour le filage au fondu et refroidissement de faisceaux de filaments
WO2004009883A1 (fr) * 2002-07-24 2004-01-29 Uhde Inventa-Fischer Ag Procede de filage a chaud de microfilaments de polyester avec un titre maximal de 0,7 dtex et microfilaments polyester produits selon ledit procede
EP1491663A1 (fr) * 2003-06-23 2004-12-29 Nan Ya Plastics Corporation Procédé pour la production de multifilaments en polyester ayant un faible denier et fils multifilaments en polyester ayant un faible denier
EP1491664A1 (fr) * 2003-06-23 2004-12-29 Nan Ya Plastics Corporation Procédé pour la production de filaments fins et creux en polyester, et fils fins et creux en polyester
WO2005014900A1 (fr) * 2003-07-18 2005-02-17 Saurer Gmbh & Co. Kg Dispositif de filature par fusion, refroidissement et d'enroulement
EP2518196A1 (fr) * 2007-05-10 2012-10-31 Kolon Industries, Inc. Faisceau de filaments non-tordus

Also Published As

Publication number Publication date
CN1236029A (zh) 1999-11-24
EP0957187A3 (fr) 2000-08-16
DE19821778A1 (de) 1999-11-18
TW493017B (en) 2002-07-01
KR19990088232A (ko) 1999-12-27
DE19821778B4 (de) 2004-05-06
TR199901078A3 (tr) 1999-12-21
US6174474B1 (en) 2001-01-16
JPH11350238A (ja) 1999-12-21
TR199901078A2 (xx) 1999-12-21
CN1105196C (zh) 2003-04-09

Similar Documents

Publication Publication Date Title
DE19821778B4 (de) Vorrichtung und Verfahren zur Herstellung von Mikrofilamenten von hoher Titer-Gleichmäßigkeit aus thermoplastischen Polymeren
EP2283174B1 (fr) Procédé de filage à l'état fondu, d'étirage et d'enroulement d'un fil multifilament, et dispositif destiné à la réalisation du procédé
EP1090170B1 (fr) Dispositif de filage pour filer un fil synthetique
EP1725702B1 (fr) Dispositif de filage par fusion et de refroidissement
DE69621934T2 (de) Verfahren und vorrichtung zum sammeln von fasern.
EP2318577B1 (fr) Procédé de filage par fusion, d'étirage et d'enroulement un fil multifilament et dispositif de mise en oeuvre de ce procédé
WO2004015173A1 (fr) Dispositif de filage et d'enroulement
WO2006018240A1 (fr) Dispositif et procede de filage par fusion, de levee, de traitement et d'enroulement de plusieurs fils synthetiques
DE19653451C2 (de) Verfahren zur Herstellung eines Polyester-Multifilamentgarnes
EP0541552B1 (fr) Procede et dispositif de filage pour la production de microfilaments
EP1228268B1 (fr) Procede de filage par fusion
WO2000028117A1 (fr) Procede et dispositif pour la production d'un fil hautement oriente
DE10053073A1 (de) Spinnvorrichtung
EP0455897A1 (fr) Dispositif pour la fabrication de fibres trés fines
EP1583855A1 (fr) Procede et dispositif pour filer et onduler un fil synthetique
EP1819854B1 (fr) Procede et dispositif de guidage et de tourbillonnement d'un fil multifilament
DE19716394C1 (de) Verfahren und Vorrichtung zur passiven verzögerten Abkühlung von Spinnfilamenten
DE10116294A1 (de) Verfahren zm Schmelzspinnen eines Verbundfadens und Spinnvorrichtung
WO2000047801A1 (fr) Procede et dispositif de filature d'un fil synthetique
DE10332645A1 (de) Vorrichtung zum Schmelzspinnen, Kühlen und Aufwickeln
DE4120460A1 (de) Verfahren und vorrichtung fuer die herstellung von polypropylengarn
WO2009043938A1 (fr) Procédé et dispositif pour produire un fil synthétique
DE10023910A1 (de) Spinnvorrichtung
EP1467005A1 (fr) Procédé et dispositif pour le filage au fondu et refroidissement d'un faisceau de filaments
WO2004044282A1 (fr) Procede et dispositif de filage par fusion et de refroidissement d'une pluralite de filaments synthetiques

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IE IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20010201

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INVENTA-FISCHER AG

AKX Designation fees paid

Free format text: DE ES FR GB IE IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INVENTA-FISCHER AG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: UHDE INVENTA-FISCHER AG

17Q First examination report despatched

Effective date: 20070813

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OERLIKON TEXTILE GMBH & CO. KG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OERLIKON TEXTILE GMBH & CO. KG

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20081113