EP0224306B1 - Process and apparatus for spin-stretching polyester fibers - Google Patents
Process and apparatus for spin-stretching polyester fibers Download PDFInfo
- 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
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- 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
Links
- 238000000034 method Methods 0.000 title claims description 18
- 229920000728 polyester Polymers 0.000 title claims description 16
- 239000000835 fiber Substances 0.000 title 1
- 238000004804 winding Methods 0.000 claims description 4
- 238000009987 spinning Methods 0.000 description 7
- -1 Polyethylene terephthalate Polymers 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 241001136792 Alle Species 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241001481789 Rupicapra Species 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
- 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,
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
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
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.
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.
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
- - 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).
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)
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)
| 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)
| 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 |
| WO1989008159A1 (en) * | 1988-02-26 | 1989-09-08 | Viscosuisse Sa | Process and device for manufacturing highly oriented amorphous polyester filament yarns |
| 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 |
| EP0423278B2 (en) * | 1989-05-01 | 1998-04-15 | Rhone-Poulenc Viscosuisse Sa | Process for the production of fine monofilaments |
| DE3917338A1 (en) * | 1989-05-27 | 1990-11-29 | Didier Eng | METHOD AND DEVICE FOR PRODUCING SMOOTH YARN FROM THERMOPLASTIC ARTIFASTS, PARTICULARLY SMOOTH POLYESTER YARN |
| CN102471936B (en) * | 2009-07-24 | 2014-10-29 | 欧瑞康纺织有限及两合公司 | Method for melt-spinning, drawing, and winding a multifilament thread and a device for performing the method |
Family Cites Families (4)
| 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 |
-
1986
- 1986-11-18 ES ES86202042T patent/ES2019285B3/en not_active Expired - Lifetime
- 1986-11-18 EP EP19860202042 patent/EP0224306B1/en not_active Expired - Lifetime
- 1986-11-18 DE DE8686202042T patent/DE3675343D1/en not_active Expired - Lifetime
Cited By (1)
| 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 |
|---|---|
| ES2019285B3 (en) | 1991-06-16 |
| DE3675343D1 (en) | 1990-12-06 |
| EP0224306A3 (en) | 1988-03-02 |
| EP0224306A2 (en) | 1987-06-03 |
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