EP0224306B1 - Process and apparatus for spin-stretching polyester fibers - Google Patents

Process and apparatus for spin-stretching polyester fibers Download PDF

Info

Publication number
EP0224306B1
EP0224306B1 EP19860202042 EP86202042A EP0224306B1 EP 0224306 B1 EP0224306 B1 EP 0224306B1 EP 19860202042 EP19860202042 EP 19860202042 EP 86202042 A EP86202042 A EP 86202042A EP 0224306 B1 EP0224306 B1 EP 0224306B1
Authority
EP
European Patent Office
Prior art keywords
godet
draw
pin
stretching
process according
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
Application number
EP19860202042
Other languages
German (de)
French (fr)
Other versions
EP0224306A3 (en
EP0224306A2 (en
Inventor
Martin Dr. Horst
Christian Reufer
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.)
Viscosuisse SA
Original Assignee
Viscosuisse SA
Rhone Poulenc Viscosuisse SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Viscosuisse SA, Rhone Poulenc Viscosuisse SA filed Critical Viscosuisse SA
Publication of EP0224306A2 publication Critical patent/EP0224306A2/en
Publication of EP0224306A3 publication Critical patent/EP0224306A3/en
Application granted granted Critical
Publication of EP0224306B1 publication Critical patent/EP0224306B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • 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 process for the single-stage spinning of two or more polyester threads with an intrinsic viscosity (IV) of 0.58 to 0.95, the polyester threads between a Uefergalette with at least one separating roller with a thread speed of 700 - 3000 m / min and a draw-off godet with a separating roller at a final speed of 3000 to 6000 m / min is drawn off via a drawing pin and thereby stretched and then wound up, and a device for carrying out the method.
  • IV intrinsic viscosity
  • the object of the invention is to provide a method for single-stage and multi-end spinning draws which enables the stretching point to be fixed on a stretching pin with a sufficiently high stretching ratio.
  • the aforementioned object is achieved in that the polyester threads are guided around an unheated stretching pin with a wrap angle ⁇ of more than 90 ° and less than 360 ° .
  • the stretching point can be fixed on the stretching pin with wrap angles of more than 90 ° and less than 360 ° .
  • the stretching point is fixed the drawing pin, even if the thread in front of the drawing pin has not yet reached the glass transition temperature.
  • the delivery godet has a surface temperature of 40 to 100 ° C, in particular 50 - 80 ° C.
  • a temperature of 110 to 240 ° C. in particular at 130 to 190 ° C., preferably 150 180 ° C., on the surface of the draw-off godet.
  • the wrap angle a around the stretching pin can also be set by means of at least one deflection roller. It has been shown that the time required to set a temperature equilibrium is relatively short with thin stretching pins. The temperature equilibrium is reached within 30 s with a stretching pin of 8 mm with a polyester thread with a titer of dtex 167 f 30. This time is usually shorter than the time required for the rest of the feeding.
  • the draw pin between the delivery godet and the draw-off godet. It has proven particularly advantageous to choose the diameter of the stretching pin from 4 to 20, in particular 5 to 10 mm. It has also been shown that the stretching pin can fix a plurality of threads separately in an arrangement provided perpendicularly or almost perpendicularly to the thread running direction. This has the advantage that the thread can be drawn in in a simple manner. It is advisable to combine a pulley with the straightening pin. It is advantageous to arrange the pulley in front of the stretching pin. In front of the stretching pin there is a lower thread speed and thread tension and thus less stress on the bearing of the deflection roller and thus a longer service life.
  • filaments 2, 2 ' are combined from a polyester melt via a spinning package I in a known manner to form two or more polyester threads 3 and passed through a device 4 which applies a spin finish 5.
  • the undrawn polyester thread 3 is now fed via a delivery godet 6 and a separating roller 7 to a stretching pin 8, to which a deflection roller 9 can be assigned.
  • a now stretched polyester thread 3 ' is guided from the stretching pin, which is wrapped more than 90 ° and less than 360 ° , over a draw-off godet 10 and a separating roller II.
  • the drawn polyester thread is finally wound up on a winding roll 12 at a speed of 3000-6000 m / min.
  • the polyester thread 3 runs over the delivery godet 6, the separating roller 7, the stretching pin 8 and is drawn off as stretched polyester thread 3 '.
  • FIG 3 shows the arrangement of the stretching pin 8 with the deflecting roller 9 and a wrap angle a of the thread of 180 ° or more.
  • the thread material was particularly suitable for technical applications as well as sewing thread.
  • the process according to the invention can also be used with the same advantages for other fiber-forming polymers such as polyamides, polypropylene or polyethylene.

Landscapes

  • 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)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)

Description

Die Erfindung betrifft ein Verfahren zum einstufigen Spinnstrecken von zwei oder mehr Polyesterfäden mit einer intrinsischen Viskosität (IV) von 0,58 bis 0,95, wobei die Polyesterfäden zwischen einer Uefergalette mit wenigstens einer Separierrolle mit einer Fadengeschwindigkeit von 700 - 3000 m/min und einer Streckabzugsgalette mit Separierrolle mit einer Endgeschwindigkeit von 3000 bis 6000 m/min über einen Streckstift abgezogen und dabei verstreckt und anschliessend aufgespult werden, sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a process for the single-stage spinning of two or more polyester threads with an intrinsic viscosity (IV) of 0.58 to 0.95, the polyester threads between a Uefergalette with at least one separating roller with a thread speed of 700 - 3000 m / min and a draw-off godet with a separating roller at a final speed of 3000 to 6000 m / min is drawn off via a drawing pin and thereby stretched and then wound up, and a device for carrying out the method.

Verfahren zum einstufigen Spinnstrecken von Polyesterfäden sind bekannt (DE-PS 21 18 316). Bei diesen Verfahren wird der aus einer Spinndüse kommende Faden ohne Zwischenspulung und Lagerung vollständig verstreckt.Methods for single-stage spinning of polyester threads are known (DE-PS 21 18 316). In this process, the thread coming from a spinneret is completely drawn without intermediate winding and storage.

Diese Verfahren werden für Fäden in technischen Einsatzgebieten angewandt. Dabei ist eine gleichmässige Färbbarkeit unwichtig. Für textile Einsatzgebiete ist diese jedoch ungenügend.These processes are used for threads in technical fields. Uniform dyeability is not important. However, this is insufficient for textile applications.

Aus der DE-A-23 00 701 ist ein Verfahren bekannt, bei welchem ein beheizter Streckstift oder sogar eine Dampfdüse als Streckpunktlokalisierer verwendet werden. Ein Heizen des Streckstiftes hat aber den Nachteil, dass eine Temperaturregelung erforderlich ist.From DE-A-23 00 701 a method is known in which a heated stylus or even a steam nozzle is used as a localizer. Heating the stretching pin has the disadvantage, however, that temperature control is required.

Aus den US 2,289,232 ist die Verwendung eines geheizten Streckstiftes zwischen einer Liefergalette und einer Streckabzugsgalette zum Spinnstrecken von Polyamidgarn bekannt. Dabei wird das Garn um 360° oder ein mehrfaches davon helixförmig um den fest angeordneten Streckstift gewunden.From US 2,289,232 the use of a heated draw pin between a delivery godet and a draw-off godet for spinning stretching of polyamide yarn is known. The yarn is wound 360 ° or a multiple of it helically around the fixed drawing pin.

Bei zwei oder mehr Fäden ist aber ein ein- oder mehrfaches Umwinden schwierig durchführbar. Ausserdem muss ein steiler Helixwinkel gewählt werden, was die Laufruhe stark beeinträchtigt.With two or more threads, however, a single or multiple winding is difficult to carry out. In addition, a steep helix angle must be selected, which greatly affects smoothness.

Aufgabe der Erfindung ist es, ein Verfahren zum einstufigen und mehrendigen Spinnstrecken zu schaffen, welches die Fixierung des Streckpunktes auf einem Streckstift bei hinreichend hohem Streckverhältnis ermöglicht.The object of the invention is to provide a method for single-stage and multi-end spinning draws which enables the stretching point to be fixed on a stretching pin with a sufficiently high stretching ratio.

Die vorgenannte Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Polyesterfäden mit einem Umschlingungswinkel a von mehr als 90° und weniger als 360° um einen unbeheizten Streckstift geführt werden. Es hat sich in überraschender Weise gezeigt, dass trotz hoher Geschwindigkeit (3000 - 6000 m/min) und damit verminderten Verweilzeiten mit Umschlingungswinkeln von mehr als 90° und weniger als 360° der Streckpunkt am Streckstift fixiert werden kann. Bei einer Abzugsgeschwindigkeit von 700 - 3000 m/min und einem Streckverhältnis von 1,7 - 4 sowie einem Umschlingungswinkel vonmehr als 90° und weniger als 360°, insbesondere von 140 bis 290°, vorzugsweise von 180°, erfolgt die Fixierung des Streckpunktes auf dem Streckstift, auch wenn der Faden vor dem Streckstift die Glastemperatur noch nicht erreicht hat.According to the invention, the aforementioned object is achieved in that the polyester threads are guided around an unheated stretching pin with a wrap angle α of more than 90 ° and less than 360 ° . Surprisingly, it has been shown that, despite the high speed (3000-6000 m / min) and thus reduced dwell times, the stretching point can be fixed on the stretching pin with wrap angles of more than 90 ° and less than 360 ° . With a take-off speed of 700 - 3000 m / min and a stretching ratio of 1.7 - 4 and a wrap angle of more than 90 ° and less than 360 ° , in particular from 140 to 290 ° , preferably 180 ° , the stretching point is fixed the drawing pin, even if the thread in front of the drawing pin has not yet reached the glass transition temperature.

Es ist zweckmässig, wenn die Liefergalette eine Oberflächentemperatur von 40 bis 100° C, insbesondere 50 - 80° C aufweist.It is expedient if the delivery godet has a surface temperature of 40 to 100 ° C, in particular 50 - 80 ° C.

Es ist zweckmässig, auf der Oberfläche der Streckabzugsgalette, eine Temperatur von 110 bis 240° C, insbesondere bei 130 bis 190° C, vorzugsweise 150 180° C vorzusehen.It is expedient to provide a temperature of 110 to 240 ° C., in particular at 130 to 190 ° C., preferably 150 180 ° C., on the surface of the draw-off godet.

Der Umschlingungswinkel a um den Streckstift kann auch mittels wenigstens einer Umlenkrolle eingestellt werden. Es hat sich gezeigt, dass bei dünnen Streckstiften die erforderliche Zeit zur Einstellung eines Temperaturgleichgewichtes relativ kurz ist. So ist das Temperaturgleichgewicht bei einem Streckstift von 8 mm mit einem Polyesterfaden eines Titers von dtex 167 f 30 innerhalb von 30 s erreicht. Diese Zeit ist in der Regel kürzer als die erforderliche Zeit für das restliche Einziehen.The wrap angle a around the stretching pin can also be set by means of at least one deflection roller. It has been shown that the time required to set a temperature equilibrium is relatively short with thin stretching pins. The temperature equilibrium is reached within 30 s with a stretching pin of 8 mm with a polyester thread with a titer of dtex 167 f 30. This time is usually shorter than the time required for the rest of the feeding.

Es ist zweckmässig, den Streckstift zwischen der Liefergalette und der Streckabzugsgalette anzuordnen. Dabei hat es sich besonders vorteilhaft erwiesen, den Durchmesser des Streckstiftes von 4 bis 20, insbesondere 5 bis 10 mm zu wählen. Es hat sich weiter gezeigt, dass der Streckstift in einer senkrecht oder nahezu senkrecht zur Fadenlaufrichtung vorgesehenen Anordnung mehrere Fäden getrennt fixieren kann. Das hat den Vorteil, dass das Einziehen des Fadens auf einfache Weise erfolgen kann. Es ist zweckmässig eine Umlenkrolle mit dem Streckstift zu kombinieren. Es ist von Vorteil die Umlenkrolle vor dem Streckstift anzuordnen. Vor dem Streckstift herrscht eine niedrigerere Fadengeschwindigkeit und Fadenspannung und damit eine geringere Beanspruchung der Lagerung der Umlenkrolle und somit eine längere Lebensdauer.It is advisable to arrange the draw pin between the delivery godet and the draw-off godet. It has proven particularly advantageous to choose the diameter of the stretching pin from 4 to 20, in particular 5 to 10 mm. It has also been shown that the stretching pin can fix a plurality of threads separately in an arrangement provided perpendicularly or almost perpendicularly to the thread running direction. This has the advantage that the thread can be drawn in in a simple manner. It is advisable to combine a pulley with the straightening pin. It is advantageous to arrange the pulley in front of the stretching pin. In front of the stretching pin there is a lower thread speed and thread tension and thus less stress on the bearing of the deflection roller and thus a longer service life.

Die Erfindung soll anhand einer Zeichnung erläutert werden. Es zeigen:

  • Fig. I eine schematische Anordnung des Fadenverlaufes
  • Fig. 2 eine perspektivische Skizze der Anordnung des Streckstiftes
  • Fig. 3 eine Variante der Anordnung von Fig. 2 mit einer Umlenkrolle
The invention will be explained with reference to a drawing. Show it:
  • Fig. I shows a schematic arrangement of the thread course
  • Fig. 2 is a perspective sketch of the arrangement of the stretching pin
  • Fig. 3 shows a variant of the arrangement of Fig. 2 with a deflection roller

Nach Fig. I werden aus einer Polyesterschmelze über ein Spinnpaket I in bekannter Weise Filamente 2, 2' zu zwei oder mehr Polyesterfäden 3 zusammengefasst und über eine Einrichtung 4, welche eine Spinnpräparation 5 aufbringt, geführt. Der unverstreckte Polyesterfaden 3 wird nun über eine Liefergalette 6 und eine Separierrolle 7 einem Streckstift 8 zugeführt, welchem eine Umlenkrolle 9 zugeordnet sein kann. Vom Streckstift, welcher mehr als 90° und weniger als 360° umschlungen ist, wird ein nun verstreckter Polyesterfaden 3' über eine Streckabzugsgalette 10 und eine Separierrolle II geführt. Der verstreckte Polyesterfaden wird schliesslich mit einer Geschwindigkeit von 3000 - 6000 m/min auf einer Wickelrolle 12 aufgewickelt.According to FIG. 1, filaments 2, 2 'are combined from a polyester melt via a spinning package I in a known manner to form two or more polyester threads 3 and passed through a device 4 which applies a spin finish 5. The undrawn polyester thread 3 is now fed via a delivery godet 6 and a separating roller 7 to a stretching pin 8, to which a deflection roller 9 can be assigned. A now stretched polyester thread 3 'is guided from the stretching pin, which is wrapped more than 90 ° and less than 360 ° , over a draw-off godet 10 and a separating roller II. The drawn polyester thread is finally wound up on a winding roll 12 at a speed of 3000-6000 m / min.

In Fig. 2 wird die Anordnung des Streckstiftes 8 für einen Umschlingungswinkel a von weniger als 1800 gezeigt. Der Polyesterfaden 3 führt über die Liefergalette 6, die Separierolle 7, den Streckstift 8 und wird als verstreckter Polyesterfaden 3' abgezogen.2 shows the arrangement of the stretching pin 8 for a wrap angle α of less than 1800. The polyester thread 3 runs over the delivery godet 6, the separating roller 7, the stretching pin 8 and is drawn off as stretched polyester thread 3 '.

In Fig. 3 ist die Anordnung des Streckstiftes 8 mit der Umlenkrolle 9 und einem Umschlingungswinkel a des Fadens von 180° oder mehr dargestellt.3 shows the arrangement of the stretching pin 8 with the deflecting roller 9 and a wrap angle a of the thread of 180 ° or more.

Mit dem erfindungsgemässen Verfahren und der Anordnung unter Verwendung eines unbeheizten senkrecht oder -nahezu -senkrecht angeordneten Streckstiftes wird eine erhebliche apparative und instrumentelle Einsparung des Spinnstreckverfahrens und damit eine wirtschaftlichere Arbeitsweise bei hohen Spinngeschwindigkeiten erzielt.With the method according to the invention and the arrangement using an unheated vertically or almost vertically arranged stretching pin, a considerable saving in apparatus and instrumentation of the spin-stretching method and thus a more economical operation at high spinning speeds is achieved.

Beispiele und Vergleichsbeisoiele Nr. I bis 7Examples and comparative examples Nos. I to 7

Polyethylenterephthalat mit einer intrinsischen Viskosität von 0,67 wurde bei 300°C aus einem Vierfachspinndüsenpaket zu vier Fäden des Endtiters 167 f 30 dtex extrudiert. Die vier Fäden wurden gemeinsam mittels einer Querluftanblasung gekühlt, mit einer wässrigen Präparation versehen, parallel mit je 6 Umwindungen um die Liefergalette und um die Abzugsgalette eines Streckwerks gemäss Abb. I gekühlt und danach aufgewickelt. Die Temperatur der Liefergalette beträgt 80°C, die der Abzugsgalette 160°C. Die jeweiligen Streckstiftumschlingungswinkel, die Umfangsgeschwindigkeiten sowie die erzielten Fadeneigenschaften sind in der Tabelle angegeben worden. Gegenüber den Vergleichsbeispielen I, 3 und 6 zeigen die erfindungsgemässen Beispiele 2, 4, 5 und 7 bessere Festigkeiten, höhere Dehnungen und kleinere Titerunregelmässigkeiten und auch eine sehr viel bessere Anfärbeegalität.Polyethylene terephthalate with an intrinsic viscosity of 0.67 was extruded at 300 ° C from a fourfold spinneret to four threads of the final titer 167 f 30 dtex. The four threads were cooled together by means of cross-air blowing, provided with an aqueous preparation, cooled in parallel with 6 turns each around the delivery godet and around the take-off godet of a drafting system according to Fig. I and then wound up. The temperature of the delivery godet is 80 ° C, that of the take-off godet is 160 ° C. The respective stretching pin wrap angles, the peripheral speeds and the thread properties achieved are given in the table. Compared to comparative examples I, 3 and 6, examples 2, 4, 5 and 7 according to the invention show better strengths, higher elongations and smaller titer irregularities and also a much better dyeing levelness.

Beispiel 8Example 8

Auf der gleichen Spinnstreckanlage wurde ein Polyethylenterephthalat mit der instrinsischen Viskosität 0,92 eingesetzt und zu vier Fäden des Titers 140 f 30 extrudiert. Gegenüber den vorausgegangenen Beispielen waren folgende Aenderungen getroffen worden:

  • - Zwischen Düsenplatte und Querluftanblasung wurde jeder Faden durch ein 20 cm langes auf 300°C geheiztes Rohr geleitet.
  • - Die Geschwindigkeit der Liefergalette betrug 2900 m/min, die der Abzugsgalette 5800 m/min.
  • - Die Temperatur der Abzugsgalette betrug 230°C.
  • - Der Streckstift wurde mit 90°C umschlungen.
  • - Alle anderen Spinn- und Streckbedingungen entsprachen denjenigen der vorausgegangenen Beispiele. Die erhaltenen Fäden hatten folgende Eigenschaften:
  • - Festigkeit 56 cN/tex
  • - Dehnung 14,7 %
  • - Thermoschrumpf 190°C 5,5 %
A polyethylene terephthalate with an intrinsic viscosity of 0.92 was used on the same spin-drawing machine and extruded into four threads of 140 f 30 titer. The following changes have been made compared to the previous examples:
  • - Between the nozzle plate and cross-air blowing, each thread was passed through a 20 cm long tube heated to 300 ° C.
  • - The speed of the delivery godet was 2900 m / min, that of the take-off godet 5800 m / min.
  • - The temperature of the take-off godet was 230 ° C.
  • - The drawing pin was wrapped at 90 ° C.
  • - All other spinning and stretching conditions corresponded to those of the previous examples. The threads obtained had the following properties:
  • - strength 56 cN / tex
  • - elongation 14.7%
  • - thermal shrinkage 190 ° C 5.5%

Das Fadenmaterial eignete sich vorzüglich für technische Einsatzgebiete wie auch als Nähgarn.The thread material was particularly suitable for technical applications as well as sewing thread.

Unter gleichen Bedingungen ohne die Umschlingung des Streck stiftes verschlechterte sich die Gamsauberkeit erheblich (hohe Flusenzahl).

Figure imgb0001
Under the same conditions without wrapping the draft pin, chamois cleanliness deteriorated considerably (high fluff count).
Figure imgb0001

Das erfindungsgemässe Verfahren kann auch mit den gleichen Vorteilen bei anderen faserbildenden Polymeren wie Polyamiden, Polypropylen oder Polyethylen angewendet werden.The process according to the invention can also be used with the same advantages for other fiber-forming polymers such as polyamides, polypropylene or polyethylene.

Claims (9)

1. A process for the single-stage spin-drawing of two or more polyester filaments (3) having an intrinsic viscosity (IV) of from 0.58 to 0.95 by passing the polyester filaments (3) between a feed godet (6) combined with at least one separating roller (7) at a speed of 700-3,000 m/min and a draw take-off godet (10) combined with a separating roller (11) at a final speed of from 3,000 to 6,000 m/min over a draw pin (8) to draw them and then winding them up, characterized in that the polyester filaments (3) are drawn by guiding them around an unheated draw pin (8) with a wrap angle (a) of more than 90° and less than 360°.
2. A process according to Claim 1, characterized in that the feed godet (6) has a surface temperature of from 50 to 100°C.
3. A process according to Claim 1, characterized in that the draw take-off godet (10) has a surface temperature of from 100 to 240°C.
4. A process according to Claim 1, characterized in that the wrap angle (a) around the draw pin (8) is formed by means of at least one deflecting roller (9).
5. A process according to Claim 4, characterized in that the deflecting roller (9) is arranged before the draw pin (8) in the yam transport direction.
6. A process according to Claims 1 to 5, characterized in that the temperature equilibrium of the draw pin (8) is attained in less than 30 s.
7. An arrangement for carrying out the process according to Claims 1 to 5, characterized in that a draw pin (8) having a diameter of from 4 to 20 mm is provided between the feed godet (6) and the draw take-off godet (10).
8. An arrangement according to Claim 6, characterized in that the draw pin (8) is arranged perpendicularly to the yam transport direction.
9. An arrangement according to Claim 7, characterized in that at least one deflecting roller (9) is provided between the feed godet (6) and the draw take-off godet (10).
EP19860202042 1985-11-25 1986-11-18 Process and apparatus for spin-stretching polyester fibers Expired - Lifetime EP0224306B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5014/85 1985-11-25
CH501485 1985-11-25

Publications (3)

Publication Number Publication Date
EP0224306A2 EP0224306A2 (en) 1987-06-03
EP0224306A3 EP0224306A3 (en) 1988-03-02
EP0224306B1 true EP0224306B1 (en) 1990-10-31

Family

ID=4286453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860202042 Expired - Lifetime EP0224306B1 (en) 1985-11-25 1986-11-18 Process and apparatus for spin-stretching polyester fibers

Country Status (3)

Country Link
EP (1) EP0224306B1 (en)
DE (1) DE3675343D1 (en)
ES (1) ES2019285B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808480A1 (en) * 1998-03-02 1999-09-09 Lausitzer Teppichfaserwerk Gmb Compensator for changing stretching ratio of stretching zone during processing of linear high density polymers

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8716243D0 (en) * 1987-07-10 1987-08-19 Courtaulds Plc Yarns
US5227110A (en) * 1988-02-26 1993-07-13 Viscosuisse S.A. Process for manufacturing highly oriented amorphous polyester filament yarns
DE58907506D1 (en) * 1988-02-26 1994-05-26 Schweizerische Viscose METHOD AND DEVICE FOR PRODUCING HIGHLY ORIENTED, AMORPHOUS POLYESTER FILAMENTS.
DE3819913A1 (en) * 1988-06-11 1989-12-21 Davy Mckee Ag METHOD FOR PRODUCING UNIFORM POY FILAMENTS
DE3903970A1 (en) * 1989-02-10 1990-08-16 Akzo Gmbh Process for producing flat polyester yarn
DE59006495D1 (en) * 1989-05-01 1994-08-25 Schweizerische Viscose METHOD FOR PRODUCING FINE MONOFILAMENTS AND MONOFILAMENT PRODUCED BY THIS METHOD.
DE3917338A1 (en) * 1989-05-27 1990-11-29 Didier Eng METHOD AND DEVICE FOR PRODUCING SMOOTH YARN FROM THERMOPLASTIC ARTIFASTS, PARTICULARLY SMOOTH POLYESTER YARN
WO2011009498A1 (en) * 2009-07-24 2011-01-27 Oerlikon Textile Gmbh & Co. Kg Method for melt-spinning, drawing, and winding a multifilament thread and a device for performing the method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1331720A (en) * 1961-08-09 1963-07-05 Hoechst Ag Method and device for the uniform and continuous drawing of yarns of high molecular weight synthetic linear polymers
US3511905A (en) * 1967-08-22 1970-05-12 Viscose Suisse Soc Process for the preparation of synthetic polymer filaments
US3715421A (en) * 1970-04-15 1973-02-06 Viscose Suisse Soc D Process for the preparation of polyethylene terephthalate filaments
IT976311B (en) * 1972-01-12 1974-08-20 Allied Chem MULTIPLE AND V-WINDING IRONING SPINNING FOR MULTIBAVA SYNTHETIC POLYMERS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808480A1 (en) * 1998-03-02 1999-09-09 Lausitzer Teppichfaserwerk Gmb Compensator for changing stretching ratio of stretching zone during processing of linear high density polymers

Also Published As

Publication number Publication date
EP0224306A3 (en) 1988-03-02
DE3675343D1 (en) 1990-12-06
ES2019285B3 (en) 1991-06-16
EP0224306A2 (en) 1987-06-03

Similar Documents

Publication Publication Date Title
EP2283174B1 (en) Method for melt-spinning, drawing, and winding up a multifilament, and apparatus for carrying out said method
DE3834139A1 (en) TWO-COMPONENT LOOP SEWING YARN AND METHOD FOR THE PRODUCTION THEREOF
EP0224306B1 (en) Process and apparatus for spin-stretching polyester fibers
EP0173221B1 (en) High-strength polyester yarn and process for its preparation
DE2204535B2 (en) MELT SPINNING AND STRETCHING PROCESSES FOR THE MANUFACTURE OF POLYESTER FIBERS
EP0346641B1 (en) Process for the production of uniform POY filaments
DE3146054A1 (en) Process and apparatus for the single-step preparation of fully drawn textile multifilament yarns from melt-spinnable polymers
EP0586951B1 (en) Bicomponent looped yarns with a fine yarn count and high strength, method of production and their use as sewing and embroidery threads
EP1723273B1 (en) Process of making false twisted texturized monofilaments
EP0846197B1 (en) Process for producing a high-strength, high-shrinkage polyamide 66 filament yarn
DE2207849B2 (en) PROCESS FOR MANUFACTURING TEXTURED, MOLECULAR ORIENTED FEEDS FROM POLYESTER OR POLYAMIDE
WO2019034488A1 (en) Method and device for producing a multifilament fully drawn yarn from a polyamide melt
DE2539272A1 (en) HIGH CONSTRUCTION TEXTURED HYBRID THREAD AND METHOD FOR ITS PRODUCTION
EP0466868B1 (en) Process for the high-speed spinning of monofilaments, and monofilaments thus manufactured
WO2017063913A1 (en) Method and device for producing fine multifilament threads
CH670107A5 (en)
DE2514874B2 (en) Process for high-speed spinning of polyamides
DE2313474B2 (en) Process for producing filament yarn with sticking out filament ends
DE3917338C2 (en)
WO2008012339A1 (en) Method for the production of a curled synthetic thread
DE1660653A1 (en) Spinning and drawing processes
DE2447766A1 (en) Quick spun synthetic yarns - passing filaments leaving spinning orifice over a psir of goddets disposed between orifice and bobbin
WO1992012287A1 (en) Method of producing a pre-adhered polyester filament, and tyre-ply cord made from this filament
DE3609209A1 (en) Process for producing melt-spun and molecularly orientingly drawn, crystalline filaments
DD271534A1 (en) METHOD OF PUNCHING POLYMER SOLUTIONS

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): CH DE ES FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE ES FR GB IT LI NL

17P Request for examination filed

Effective date: 19880801

17Q First examination report despatched

Effective date: 19891220

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI NL

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: RHONE-POULENC VISCOSUISSE SA

REF Corresponds to:

Ref document number: 3675343

Country of ref document: DE

Date of ref document: 19901206

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19941117

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19941121

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19941129

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19941130

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19941213

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19950201

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19951118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19951120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19951130

Ref country code: CH

Effective date: 19951130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960601

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19951118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960731

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051118