WO1990002222A1 - Melt-spinning device with high winding-off speeds and filament produced by means of the device - Google Patents

Melt-spinning device with high winding-off speeds and filament produced by means of the device Download PDF

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Publication number
WO1990002222A1
WO1990002222A1 PCT/CH1989/000147 CH8900147W WO9002222A1 WO 1990002222 A1 WO1990002222 A1 WO 1990002222A1 CH 8900147 W CH8900147 W CH 8900147W WO 9002222 A1 WO9002222 A1 WO 9002222A1
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Prior art keywords
spinning
thread
melt
spinning chamber
chamber
Prior art date
Application number
PCT/CH1989/000147
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German (de)
French (fr)
Inventor
Horst Martin
Original Assignee
Viscosuisse Sa
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Application filed by Viscosuisse Sa filed Critical Viscosuisse Sa
Priority to BR898907063A priority Critical patent/BR8907063A/en
Priority to EP89908959A priority patent/EP0396646B2/en
Publication of WO1990002222A1 publication Critical patent/WO1990002222A1/en

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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

Definitions

  • the invention relates to a device for melt spinning at take-off speeds above 5000 m / min, consisting of a spinning block, with a spinneret pack and a thread suction nozzle and a filament produced by the method.
  • Thread extraction nozzles for thread cooling in melt spinning at speeds above 5000 m / min are known. On the one hand, they suck in the threads and, on the other hand, they serve to supply the threads with a cooling gas parallel to them.
  • such a nozzle is used in connection with a heating chamber, the heating chamber being mounted directly under the spinning block.
  • EP-A-0 244 217 also describes the use of such a nozzle for the same purpose in connection with a Venturi nozzle operated with a hot gas.
  • the Venturi nozzle is also located directly under the spinning block.
  • Both the heating chamber and the hot gas-powered Venturi nozzle serve, among other things, to improve spinning and thread properties. As far as the thread properties are concerned, these have a positive influence on the dyeability.
  • the thread suction nozzle for thread cooling is located between 50 and 600 mm below it in the case of the heating chamber and at a sufficient distance below it in the case of the Venturi nozzle that the air escaping there does not impair the operation of the same. The threads get in there as an open bundle and are still quite fluid on their way there due to the delayed thread cooling, i.e. little solidified.
  • the object of the invention is to provide a device which allows the titer regularity and the strength of a very quickly spun filament to be improved.
  • Another task is to reduce the energy-intensive operation of a heating chamber or the likewise energy-intensive specific hot air consumption.
  • the object is achieved in a device according to claim 1, which is characterized in that a spinning chamber is arranged between the spinneret pack and the thread suction nozzle. Due to the arrangement according to the invention, a suppression is created in the spinning chamber, which specifically draws in cooling air from the environment and which surprisingly achieves an excellent titer regularity along the resulting thread.
  • the spinning chamber is attached in a gas-tight manner with its inlet opening on the spinning block and with its outlet opening on the thread suction nozzle.
  • the attachment is carried out in a known manner and using sealing material.
  • the formation of the bottom of the spinning chamber into a funnel has advantages in terms of air flow.
  • the spinning chamber essentially consists of a tube which is closed at its periphery and which is designed as a sieve tube only in a specific area, specifically from 150 to 350 mm, in particular from 200 to 300 mm, from the spinneret pack.
  • the perforated area can be provided with any openings for the gas passage.
  • the air permeability of the sieve tube should be 20 to 40%, ie the perforated surface should have openings of 20 to 40%.
  • a filament produced with the device according to the invention has an uneven titer of ⁇ 0.60% Uster.
  • Fig. 1 shows a scheraatic spinning device with the spinning chamber according to the invention
  • a spinning block is denoted by 1.
  • a spinneret pack 2 is provided in a slightly reset manner.
  • Spinneret pack 2 has a gas-permeable ring designated as sieve tube 4.
  • the lower part of the spinning chamber 3 is formed into a funnel 6 and is dimensioned such that the filaments 5 emerging from the spinneret pack 2 cannot touch the wall of the spinning chamber 3.
  • a thread suction nozzle is connected gas-tight to the apex of the funnel 6 and is provided in the convergence point of the filament bundle.
  • a melt-spinnable granulate is melted in the spinning block 1 in a known manner and is tensioned into filaments 5 by the spinneret pack 2.
  • the suction of the Eadenabsaugdüse 7 ent there is an oppression in the spinning chamber 3.
  • room air flows through the sieve tube 4 of the spinning chamber 3 and cools the filaments 5, which are drawn off at high speed by means of the spool 10.
  • the filaments 5 Before the filaments 5 are wound onto the bobbin 10, they pass through the thread oiler 8 and the swirling nozzle 9.
  • a polyester granulate with an intrinsic viscosity (IV) of 0.62 dl / g is melted at 298 ° C in spin block 1, spun into 24 filaments with a total density of 50 dtex at a take-off speed of 5500 m / min.
  • the spinning chamber was 460 mm long and perforated between 150 and 250 mm below the nozzle plate with a permeability of 38%.
  • the thread suction nozzle 7 was subjected to an air pressure of 1 bar and indicated an air consumption of 5.6 Nm 3 / h. After leaving the thread suction nozzle 7, the thread was provided with a spin finish and swirled in a known manner.
  • the table shows that a filament thread produced with the device according to the invention has a significant improvement in yarn cleanliness and an increase in strength.

Abstract

A melt-spinning device comprises an essentially sealed spinning chamber (3) mounted in a gas-tight manner between a spinneret bundle (2) and a yarn suction device (7). The spinning chamber (3) is partially perforated only in the region located 150 to 350 mm from the spinneret bundle. At a winding-off speed of 5500 m/min, the filament produced has a count irregularity less than 0.60 % U.

Description

Vorrichtung zum Schmelzspinnen mit hohen Abzugsgeschwindigkeiten und Filament hergestellt mittels der Device for melt spinning with high take-off speeds and filament produced by means of the
Vorrichtung  contraption
Die Erfindung betrifft eine Vorrichtung zum Schmelzspinnen mit Abzugsgeschwindigkeiten über 5000 m/min, bestehend aus einem Spinnblock, mit einem Spinndüsenpaket und einer Fadenabsaugdüse sowie einem Filament hergestellt nach dem Verfahren. The invention relates to a device for melt spinning at take-off speeds above 5000 m / min, consisting of a spinning block, with a spinneret pack and a thread suction nozzle and a filament produced by the method.
Beim Schmelzspinnen bei hohen Abzugsgeschwindigkeiten bereitet die Abkühlung der Filamente den kritischen Verfahrensschritt. Die Problematik liegt darin, dass einerseits die Fadentemperatur drastisch gesenkt und andererseits die Fadengeschwindigkeit erhöht werden muss. In melt spinning at high take-off speeds, the cooling of the filaments is the critical process step. The problem is that on the one hand the thread temperature has to be drastically reduced and on the other hand the thread speed has to be increased.
Fadenabsaugdüsen zum Fadenkühlen beim Schmelzspinnen mit Geschwindigkeiten über 5000 m/min sind bekannt. Sie saugen einerseits die Fäden an und dienen andererseits dazu, den Fäden parallel zu denselben ein Kühlgas zuzuführen. Thread extraction nozzles for thread cooling in melt spinning at speeds above 5000 m / min are known. On the one hand, they suck in the threads and, on the other hand, they serve to supply the threads with a cooling gas parallel to them.
Nach der EP-B-0 056 963 wird eine solche Düse in Verbindung mit einer Heizkammer verwendet, wobei die Heizkammer direkt unter dem Spinnblock angebracht ist. According to EP-B-0 056 963, such a nozzle is used in connection with a heating chamber, the heating chamber being mounted directly under the spinning block.
Auch in der EP-A-0 244 217 wird die Verwendung einer solchen Düse zum gleichen Zweck in Verbindung mit einer mit einem heissen Gas betriebenen Venturi-Düse beschrieben, wobei die Venturi-Düse ebenfalls direkt unter dem Spinnblock angebracht ist. EP-A-0 244 217 also describes the use of such a nozzle for the same purpose in connection with a Venturi nozzle operated with a hot gas. the Venturi nozzle is also located directly under the spinning block.
Sowohl die Heizkammer als auch die mit einem heissen Gas betriebene Venturi-Düse, beide direkt unter dem Spinnblock angebracht, dienen unter anderem zur Verbesserung von Spinnlauf und Fadeneigenschaften. Was die Fadeneigenschaften betrifft so wird durch diese vor allem die Färbbarkeit positiv beeinflusst. Die Fadenabsaugdüse zum Fadenkühlen befindet sich im Falle der Heizkammer zwischen 50 und 600 mm unterhalb derselben, im Falle der Venturi-Düse in hinreichenden Abstand darunter, dass die dort austretende Luft den Betrieb derselben nicht beeinträchtigt. Die Fäden gelangen als offene Bündel dort hinein und sind auf ihrem Wege dorthin wegen der verzögerten Fadenabkühlung, noch ziemlich flüssig, d.h. wenig verfestigt. Both the heating chamber and the hot gas-powered Venturi nozzle, both located directly under the spinning block, serve, among other things, to improve spinning and thread properties. As far as the thread properties are concerned, these have a positive influence on the dyeability. The thread suction nozzle for thread cooling is located between 50 and 600 mm below it in the case of the heating chamber and at a sufficient distance below it in the case of the Venturi nozzle that the air escaping there does not impair the operation of the same. The threads get in there as an open bundle and are still quite fluid on their way there due to the delayed thread cooling, i.e. little solidified.
Auf diesem Kegstück sind sie in keiner Weise gegen seitliehe Auswanderungen, d.h. gegen Auswanderungen senkrecht zur Fadenlaufrichtung stabilisiert. Solche seitlichen Auswanderungen führen zu sinusähnlichen Titerschwankungen längs des so hergestellten Fadenbündels, die ihrerseits die Färbbarkeit und die Festigkeit negativ beeinflussen. On this piece of keg they are in no way against lateral emigration, i.e. stabilized against emigration perpendicular to the thread running direction. Such lateral emigration leads to sinus-like fluctuations in the titer along the thread bundle thus produced, which in turn negatively affect the dyeability and strength.
Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, welche es erlaubt die Titerregelmässigkeit und die Festigkeit eines sehr schnellgesponnenen Filamentes zu verbessern. The object of the invention is to provide a device which allows the titer regularity and the strength of a very quickly spun filament to be improved.
Eine weitere Aufgabe besteht in der Reduktion des energieaufwendigen Betriebs einer Heizkammer bzw. des ebenfalls energieaufwendigen spezifischen Heiss-Luftverbrauches. Die Lösung der Aufgabe besteht in einer Vorrichtung nach Anspruch 1, die dadurch gekennzeichnet ist, dass eine Spinnkammer zwischen dem Spinndüsenpaket und der Fadenabsaugdϋse angeordnet ist. Durch die erfindungsgemässe Anordnung entsteht in der Spinnkammer ein unterdrück, der gezielt Kühlluft aus der Umgebung ansaugt und durch den in überraschender Weise eine hervorragende Titerregelmässigkeit längs des resultierenden Fadens erzielt wird. Another task is to reduce the energy-intensive operation of a heating chamber or the likewise energy-intensive specific hot air consumption. The object is achieved in a device according to claim 1, which is characterized in that a spinning chamber is arranged between the spinneret pack and the thread suction nozzle. Due to the arrangement according to the invention, a suppression is created in the spinning chamber, which specifically draws in cooling air from the environment and which surprisingly achieves an excellent titer regularity along the resulting thread.
Es ist zweckmässig, wenn die Spinnkammer mit ihrer Eintrittsöffnung am Spinnblock und mit ihrer Austrittsöffnung an der Fadenabsaugdüse gasdicht befestigt ist. Die Befestigung erfolgt in bekannter Weise und unter Verwendüng von Dichtungsmaterial. Die Ausbildung des Bodens der Spinnkammer zu einem Trichter hat luftströmungstechnische Vorteile. It is expedient if the spinning chamber is attached in a gas-tight manner with its inlet opening on the spinning block and with its outlet opening on the thread suction nozzle. The attachment is carried out in a known manner and using sealing material. The formation of the bottom of the spinning chamber into a funnel has advantages in terms of air flow.
Die Spinnkammer besteht im wesentlichen aus einem an seiner Peripherie geschlossenen Rohr, welches nur in einem bestimmten Bereich, und zwar von 150 bis 350 mm, insbesondere von 200 bis 300 mm von der Spinndüsenpaket entfernt als Siebrohr ausgebildet ist. Anstelle eines Siebrohres kann der perforierte Bereich mit beliebigen öffnungen für den Gasdurchtritt versehen sein. The spinning chamber essentially consists of a tube which is closed at its periphery and which is designed as a sieve tube only in a specific area, specifically from 150 to 350 mm, in particular from 200 to 300 mm, from the spinneret pack. Instead of a sieve tube, the perforated area can be provided with any openings for the gas passage.
Es ist zweckmässig die Öffnungen in einem Kreisring von 50 bis 150 mm Breite bzw. ein Siebrohr mit der gleichen Länge vorzusehen. It is advisable to provide the openings in a circular ring with a width of 50 to 150 mm or a sieve tube with the same length.
In jedem Fall soll die Luftdurchlässigkeit des Siebrohres 20 bis 40 % aufweisen, d.h., die perforierte Fläche soll 20 bis 40 % mit Öffnungen versehen sein. Ein mit der erfindungsgeroässen Vorrichtung hergestelltes Filament weist eine Titerunregelmässigkeit von < 0,60 % Uster auf. In any case, the air permeability of the sieve tube should be 20 to 40%, ie the perforated surface should have openings of 20 to 40%. A filament produced with the device according to the invention has an uneven titer of <0.60% Uster.
Die Erfindung soll anhand einer Zeichnung näher beschrieben werden. The invention will be described in more detail with reference to a drawing.
Es zeigen: Show it:
Fig. 1 eine scheraatische Spinneinrichtung mit der erfindungsgemässen Spinnkammer Fig. 1 shows a scheraatic spinning device with the spinning chamber according to the invention
Fig. 2 ein Uster-Diagramm eines mit der erfindungsgemässen Spinneinrichtung hergestellten Filamentes  2 shows a Uster diagram of a filament produced with the spinning device according to the invention
In Fig. 1 ist ein Spinnblock mit 1 bezeichnet. Im Spinnblock 1 ist leicht zurückgesetzt ein Spinndüsenpaket 2 vorgesehen. Eine Spinnkammer 3, welche bevorzugt aus einem nahezu über ihre ganze Länge geschlossenes Rohr besteht, weist im Abstand von etwa 200 bis 300 mm vom In Fig. 1, a spinning block is denoted by 1. In the spinning block 1, a spinneret pack 2 is provided in a slightly reset manner. A spinning chamber 3, which preferably consists of a tube which is closed over almost its entire length, is at a distance of approximately 200 to 300 mm from the
Spinndüsenpaket 2 einen als Siebrohr 4 bezeichneten gasdurchlässigen Ring auf. Die Spinnkammer 3 ist in ihrem unteren Teil zu einem Trichter 6 ausgebildet und so dimensioniert, dass die aus dem Spinndüsenpaket 2 austretenden Filamente 5 die Wand der Spinnkammer 3 nicht berühren können. Eine Fadenabsaugdüse ist mit dem Apex des Trichters 6 gasdicht verbunden und im Konvergenzpunkt des Filamentbündeis vorgesehen. Es sind ferner ein Fadenöler 8, eine Verwirbelungsdüse 9 und eine Abzugsrolle 10 zur Weitergabe des Filaroentfadens zum Spuler 10 vorgesehen. Anstelle der Abzugsrolle 10 kann auch direkt der Spuler eingesetzt werden. Spinneret pack 2 has a gas-permeable ring designated as sieve tube 4. The lower part of the spinning chamber 3 is formed into a funnel 6 and is dimensioned such that the filaments 5 emerging from the spinneret pack 2 cannot touch the wall of the spinning chamber 3. A thread suction nozzle is connected gas-tight to the apex of the funnel 6 and is provided in the convergence point of the filament bundle. There are also a thread oiler 8, a swirling nozzle 9 and a take-off roller 10 for passing on the filaro thread to the winder 10. Instead of the take-off roll 10, the winder can also be used directly.
Im Betrieb der Vorrichtung wird ein schmelzspinnbares Granulat in bekannter Weise im Spinnblock 1 aufgeschmolzen und durch das Spinndüsenpaket 2 in Filamente 5 verspannen. Durch die Saugwirkung der Eadenabsaugdüse 7 ent steht ein unterdrück in der Spinnkammer 3. Dadurch strömt Raumluft durch das Siebrohr 4 der Spinnkammer 3 und kühlt die Filamente 5 ab, welche mit hoher Geschwindigkeit mittels der Spule 10 abgezogen werden. Bevor die Filamente 5 auf die Spule 10 aufgewickelt werden, durchlaufen sie den Fadenöler 8 und die Verwirbelungsdüse 9. In the operation of the device, a melt-spinnable granulate is melted in the spinning block 1 in a known manner and is tensioned into filaments 5 by the spinneret pack 2. By the suction of the Eadenabsaugdüse 7 ent there is an oppression in the spinning chamber 3. As a result, room air flows through the sieve tube 4 of the spinning chamber 3 and cools the filaments 5, which are drawn off at high speed by means of the spool 10. Before the filaments 5 are wound onto the bobbin 10, they pass through the thread oiler 8 and the swirling nozzle 9.
Ausführungsbeispiele embodiments
Ein Polyestergranulat mit einer intrinsischen Viskosität (IV) von 0,62 dl/g wird bei 298ºC im Spinnblock 1 aufgeschmolzen, zu 24 Filamenten mit einem Gesarottiter von 50 dtex mit einer Abzugsgeschwindigkeit von 5500 m/min versponnen. Die Spinnkammer war 460 mm lang und zwischen 150 und 250 mm unterhalb der Düsenplatte mit einer Perforation versehen mit einer Durchlässigkeit von 38 %. Die Fadenabsaugdüse 7 war dabei mit einem Luftdruck von 1 bar beaufschlagt und zeigte einen Luftverbrauch von 5,6 Nm3/h an. Nach dem Verlassen der Fadenabsaugdüse 7 wurde der Faden in bekannter Weise mit einer Spinnpräparation versehen und verwirbelt. A polyester granulate with an intrinsic viscosity (IV) of 0.62 dl / g is melted at 298 ° C in spin block 1, spun into 24 filaments with a total density of 50 dtex at a take-off speed of 5500 m / min. The spinning chamber was 460 mm long and perforated between 150 and 250 mm below the nozzle plate with a permeability of 38%. The thread suction nozzle 7 was subjected to an air pressure of 1 bar and indicated an air consumption of 5.6 Nm 3 / h. After leaving the thread suction nozzle 7, the thread was provided with a spin finish and swirled in a known manner.
Es resultiert ein Faden mit den in der Tabelle, Spalte 3 angegebenen Eigenschaften. The result is a thread with the properties specified in the table, column 3.
Figure imgf000007_0001
Die Tabelle zeigt, dass ein mit der erfindungsgemässen Vorrichtung hergestellter Filamentfaden eine wesentliche Verbesserung in der Garnsauberkeit und eine Erhöhung der Festigkeit aufweist.
Figure imgf000007_0001
The table shows that a filament thread produced with the device according to the invention has a significant improvement in yarn cleanliness and an increase in strength.
Bezeichnungen Designations
1 Spinnblock 1 spinning block
2 Spinndüsenpaket  2 spinneret pack
3 Spinnkammer  3 spinning chamber
4 Siebrohr 4 sieve tube
5 Filamente  5 filaments
6 Trichter der Spinnkammer 6 funnels of the spinning chamber
7 Fadenabsaugdüse 7 thread suction nozzle
8 Fadenöler  8 thread oiler
9 Verwirbelungsdüse9 swirl nozzle
0 Abzugsrolle 0 take-off roll

Claims

Patentansprüche Claims
1. Vorrichtung zum Schmelzspinnen mit Abzugsgeschwindigkeiten über 5000 m/min, bestehend aus einem Spinnblock (1), mit einem Spinndüsenpaket (2) und einer Fadenabsaugdüse (7) , dadurch gekennzeichnet, dass eine 1. Device for melt spinning at take-off speeds above 5000 m / min, consisting of a spinning block (1), with a spinneret pack (2) and a thread suction nozzle (7), characterized in that a
Spinnkammer ( 3 ) zwischen dem Spinndüsenpaket ( 2 ) und der Fadenabsaugdüse (7) angeordnet ist.  Spinning chamber (3) is arranged between the spinneret pack (2) and the thread suction nozzle (7).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Spinnkammer (3) mit ihrer Eintrittsöffnung mit dem Spinndüsenpaket (2) und mit ihrer Austrittsöffnung mit der Fadenabsaugdüse (7) gasdicht verbunden ist. 2. Device according to claim 1, characterized in that the spinning chamber (3) with its inlet opening with the spinneret pack (2) and with its outlet opening with the thread suction nozzle (7) is connected gas-tight.
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Spinnkammer (3) in ihrem unteren Teil zu einem Trichter (6) ausgebildet ist. 3. Device according to claim 1, characterized in that the spinning chamber (3) is formed in its lower part to form a funnel (6).
4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Wand des Trichters (6) abgerundet ist. 4. The device according to claim 1, characterized in that the wall of the funnel (6) is rounded.
5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die im wesentlichen geschlossene Spinnkammer (3) im Abstand zwischen 100 bis 350 mm vom Spinndüsenpaket (2) teilweise als Siebrohr (4) ausgebildet ist. 5. The device according to claim 1, characterized in that the substantially closed spinning chamber (3) at a distance between 100 to 350 mm from the spinneret pack (2) is partially designed as a sieve tube (4).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Siebrohr (4) eine Länge von 50 bis 150 mm aufweist. 6. The device according to claim 5, characterized in that the sieve tube (4) has a length of 50 to 150 mm.
7. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Siebrohr (4) eine Luftdurchlässigkeit von 20 bis 40 % aufweist. 7. The device according to claim 5, characterized in that the sieve tube (4) has an air permeability of 20 to 40%.
8. Filament hergestellt mit der Vorrichtung nach den Ansprüchen 1 bis 7, gekennzeichnet durch eine Titerunregelmässigkeit von < 0,60 % U. 8. Filament produced with the device according to claims 1 to 7, characterized by a titer irregularity of <0.60% U.
PCT/CH1989/000147 1988-08-24 1989-08-14 Melt-spinning device with high winding-off speeds and filament produced by means of the device WO1990002222A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR898907063A BR8907063A (en) 1988-08-24 1989-08-14 FUSION DEVICE WITH HIGH EXTRACTION SPEED AND FILAMENT PRODUCED BY DEVICE
EP89908959A EP0396646B2 (en) 1988-08-24 1989-08-14 Melt-spinning device with high winding-off speeds

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH314688 1988-08-24
CH3146/88-5 1988-08-24

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Publication Number Publication Date
WO1990002222A1 true WO1990002222A1 (en) 1990-03-08

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EP (1) EP0396646B2 (en)
JP (2) JPH03500908A (en)
BR (1) BR8907063A (en)
DE (1) DE58906504D1 (en)
WO (1) WO1990002222A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593705A (en) * 1993-03-05 1997-01-14 Akzo Nobel Nv Apparatus for melt spinning multifilament yarns
US5612063A (en) * 1991-09-06 1997-03-18 Akzo N.V. Apparatus for melt spinning multifilament yarns

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133048U (en) * 1976-04-05 1977-10-08

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707593A (en) * 1970-04-01 1972-12-26 Toray Industries Apparatus and method for manufacturing continuous filaments from synthetic polymers
EP0056963A2 (en) * 1981-01-19 1982-08-04 Asahi Kasei Kogyo Kabushiki Kaisha Polyester fiber dyeable under normal pressure and process for the production thereof
EP0244217A2 (en) * 1986-04-30 1987-11-04 E.I. Du Pont De Nemours And Company Process and apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411715B2 (en) * 1971-10-05 1979-05-17
JPS5167408A (en) * 1974-12-02 1976-06-11 Toray Industries SHINKUBOSHIHOHO

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707593A (en) * 1970-04-01 1972-12-26 Toray Industries Apparatus and method for manufacturing continuous filaments from synthetic polymers
EP0056963A2 (en) * 1981-01-19 1982-08-04 Asahi Kasei Kogyo Kabushiki Kaisha Polyester fiber dyeable under normal pressure and process for the production thereof
EP0244217A2 (en) * 1986-04-30 1987-11-04 E.I. Du Pont De Nemours And Company Process and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612063A (en) * 1991-09-06 1997-03-18 Akzo N.V. Apparatus for melt spinning multifilament yarns
US5593705A (en) * 1993-03-05 1997-01-14 Akzo Nobel Nv Apparatus for melt spinning multifilament yarns

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DE58906504D1 (en) 1994-02-03
EP0396646B1 (en) 1993-12-22
JPH081665U (en) 1996-12-17
JPH03500908A (en) 1991-02-28
BR8907063A (en) 1991-01-02
EP0396646A1 (en) 1990-11-14
JP2535880Y2 (en) 1997-05-14
EP0396646B2 (en) 2001-01-03

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