EP0649920A1 - Continuous process for melt spinning of monofilaments - Google Patents

Continuous process for melt spinning of monofilaments Download PDF

Info

Publication number
EP0649920A1
EP0649920A1 EP94115963A EP94115963A EP0649920A1 EP 0649920 A1 EP0649920 A1 EP 0649920A1 EP 94115963 A EP94115963 A EP 94115963A EP 94115963 A EP94115963 A EP 94115963A EP 0649920 A1 EP0649920 A1 EP 0649920A1
Authority
EP
European Patent Office
Prior art keywords
threads
temperature
cooling
liquid
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.)
Granted
Application number
EP94115963A
Other languages
German (de)
French (fr)
Other versions
EP0649920B1 (en
Inventor
Jürgen Dipl.-Ing. Büdenbender
Eckhard Gärtner
Jakob Jansen
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.)
Bayer AG
Original Assignee
Bayer 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
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0649920A1 publication Critical patent/EP0649920A1/en
Application granted granted Critical
Publication of EP0649920B1 publication Critical patent/EP0649920B1/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
    • 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
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • 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
    • D01D5/0885—Cooling filaments, threads or the like, leaving the spinnerettes by means of a liquid
    • 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

Definitions

  • the invention relates to a high-speed production process for the production of monofilament threads with a diameter of 60 microns to 500 microns in a continuous procedure from thread-forming polymers by melt spinning the polymer, optionally blowing the formed polymer threads below the melt spinning head with a cooling medium, cooling the threads in a liquid bath with a Temperature from -10 ° C to 150 ° C, removal of the drag water and post-treatment of the threads by preparation, stretching and fixing with an outlet speed of the threads after the fixing step of greater than 600 to 4000 m / min.
  • thermoplastic monofilaments (with a diameter greater than 60 ⁇ m) can be spun, e.g. in water, with a maximum discharge speed of 600 m / min.
  • German published patent application DE 41 29 521 A1 describes a device for the rapid spinning of multifilament threads at winding speeds of at least 2000 m / min., In particular of at least 5,000 m / min.
  • multifilament threads are spun in air and wound up directly.
  • a special feature of this patent is the cooling device. It consists of a porous tube open in the spinning direction, which is arranged concentrically to the spinning line. At the high winding speeds, there is no active supply of a cooling medium.
  • the process described there relates to filament yarns with individual filament titer of 0.1 to 6 dtex and is not applicable to monofilaments with a diameter of greater than 50 ⁇ m (approx. 20 dtex).
  • both direct spinning drawing processes (DE 41 29 521 A1 and WO 91/11547) are limited to thin monofilament diameters ( ⁇ ⁇ 55 ⁇ m) due to the unfavorable heat dissipation due to air cooling and the poor internal heat conduction in the wire.
  • the object of the present invention is to provide a continuous process for melt spinning monofilament threads with a diameter of 60 to 500 microns from thread-forming polymers, in particular polyamide, in which spinning is carried out in a cooling bath, despite the high outlet speed of 600 to 4000 m / min, especially when driving through the cooling bath, is still manageable, as well as one of the previously known production processes (at 200 to 400 m / min run-out speed; see manual of Kunststoffextrusionstechnik II, Hanser-Verlag (1989) Patents, Knapp, Hensen Chap. 10) provides at least comparable thread quality.
  • the object is achieved in that the thread-forming polymer melt-spun in air; the spun threads in a liquid bath cooled and redirected at a temperature of -10 to 150 ° C, the fluid flow caused by the drag flow of the threads possibly being calmed; the threads are removed from the water by stripping and / or centrifuging and subsequently treated by optionally preparing, stretching and fixing. The threads are then wound up, the thread outlet speed being at least 600 to 4000 m / min.
  • the invention relates to a continuous process for the production of monofilaments with a diameter of 60 microns to 500 microns, preferably from 100 to 300 microns, by melt spinning the polymer, optionally blowing the formed polymer threads below the melt spinning head with a cooling medium, cooling the threads in one Liquid bath with a temperature of the cooling liquid from -10 ° C to 150 ° C, deflecting the threads in the liquid bath on a thread guide, possibly calming the fluid flow in the liquid bath caused by the drag flow of the threads, stripping and throwing off the drag fluid at the outlet of the liquid bath, suctioning off the remaining entraining fluids, optionally applying a preparation, drawing in one or more stages in hot air, hot water or steam or a combination of these media, fixing the drawn threads in hot air and / or steam and finally winding the threads, where di e speed of the threads after the fixing step is from 600 to 4000 m / min, preferably 1000 to 3500 m / min.
  • the polymer melt is spun in air from a spinning head known in principle.
  • all thread-forming polymers which can be processed in the melt are particularly suitable, in particular polyamide, polyester, polyethylene, polyphenylene sulfide, polypropylene and polyacrylonitrile.
  • Particularly suitable among these are polyamides, such as polyamide-6, polyamide-66, polyamide-12, polyamide-6 / T, and copolyamides, such as polyamide-66/6, polyamide-12/6, polyamide-11/6 and polyamide-6 / 10, and mixtures of these.
  • the polymer threads formed are preferably blown from the blow nozzles laterally over a distance of 1 to 10 cm with tempered air from 0 to 50 ° C., preferably 10 to 25 ° C., in order to stabilize the smooth running of the threads.
  • the polymer threads are then cooled in a liquid bath with a liquid temperature of from -10 ° C. to 150 ° C., preferably from 10 to 40 ° C.
  • the threads are deflected in the liquid bath on a thread guide from the vertical towards the pool edge of the liquid bath.
  • the formation of liquid flows in the liquid bath is preferably avoided by installing flow breakers.
  • Suitable cooling liquids for the liquid bath are all liquids which are inert to the polymer of the threads, e.g. Water, oils (e.g. silicone oil), hydrocarbons, chlorinated hydrocarbons etc.
  • the preferred cooling liquid for the liquid bath is water.
  • the trailing fluid entrained from the cooling bath at the high processing speed is preferably stripped off by the threads with wipers and thrown off at the exit of the liquid bath on pulling rollers. Residual entraining fluid is sucked off the threads on a suction unit and the threads are then fed to the further post-treatment steps.
  • the following possible preparation of the threads is carried out in a manner known per se by applying an optionally aqueous preparation agent to the preparation site. Suitable preparations for this are all lubricant dispersions based on e.g.
  • the preparation step can optionally also be carried out after stretching or fixing.
  • the optionally prepared threads are then in one or more stages, preferably in one to four stages, in hot air at a temperature of 150 to 350 ° C, hot water at a temperature of 85 to 98 ° C or steam stretched at a temperature of 100 to 150 ° C or any combination of these media by 200 to 700%, the maximum degree of stretching being based on the stretchability typical of the respective polymer.
  • the drawn threads are then fixed in hot air at a temperature of 150 to 350 ° C. and / or steam at a temperature of 100 to 150 ° C. and then at a speed of 600 to 4000 m / min, preferably from 1000 to 3500 m / min, wound up.
  • a special finishing agent (finishing agent) is preferably additionally applied to each winding unit. All lubricant dispersions based on e.g.
  • the polymer melt conveyed by conventional pumps emerges at the annular spinneret 1 and is blown from blowing nozzles 2 with warm air at 0 to 50 ° C., which flows through between the spinneret 1 and the cooling liquid (eg water).
  • the threads 17 are immersed in the liquid bath 3 and are deflected on the thread guide 4 in the direction of the pool edge 5.
  • the thread guide 4 consists of rod-shaped guide elements 4 'arranged in a semicircle and made of stainless steel or ceramic. The threads are passed through so-called combs 16 so that they do not knock against one another and stick together. It is important that the friction between threads 17 and thread guide 4, as well as the number of points of contact, are minimal.
  • the special thread guide (Fig. 3) is another object of the invention.
  • the guide elements 4 'of the thread guide 4 are designed in such a way that the threads 17 slide over the guide elements 4' at the high take-off speed through the entrained water - similar to the slide bearing effect - and are thus guided, as it were, without contact.
  • a liquid bath 3 with baffles 6, 6 ' is preferably used.
  • the flow breakers 6, 6 ' calm the liquid flow caused by the drag flow of the threads 17.
  • the flow breakers 6 are arranged transversely to the thread running direction below and partly above the thread family (see FIG. 4).
  • the upper flow breakers 6 ' can be folded up to put on the threads.
  • the threads 17 are freed of the trailing fluid (e.g. water) by means of a scraper 7. Further drag fluid is thrown off by deflecting the threads on deflection rollers 8. Rear sight rolls are preferred for better removal (throwing off) of the towing water. Further drag water remaining on the threads is removed with the adhesive water suction 9.
  • the spin preparation is then applied to the threads at the preparation site 10 with a preparation roller or in a spray chamber with nozzles and is evened out with a stripper.
  • the threads are then fed to the drawing zone 13, for example via a roller septet 12.
  • the threads are drawn in two stages in hot air at a temperature of 240 to 260 ° C and a total of 420%.
  • the fixing in the fixing zone 14 is preferably carried out in hot air at, for example, 250 to 260 ° C.
  • the threads are then wound onto the winding stations 15 at a winding speed of up to 4000 m / min.
  • monofilaments were made from pure polyamide-6 and copolyamide (85% PA 6 with 15% PA 6.6). Before cooling in the liquid bath, the monofilaments emerging from the spinning head were blown vertically with air (25 ° C.) directly below the spinneret.
  • the comparative example represents the usual production of polyamide 6 monofilaments today.

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)

Abstract

The invention relates to a continuous process for manufacturing monofilaments having a diameter of 60 mu m to 500 mu m from fibre-forming polymers by melt-spinning the polymer, optionally quenching the filaments with a cooling medium below the melt-spinning head, cooling the filaments in a liquid bath having a temperature from -10 DEG C to 150 DEG C, removing the entrained water and aftertreating the filaments by spin-finishing, drawing and setting at a post-setting exit speed of the filaments of greater than 600 to 4000 m/min. <IMAGE>

Description

Die Erfindung betrifft ein Hochgeschwindigkeitsproduktionsverfahren zur Herstellung von monofilen Fäden mit einem Durchmesser von 60 µm bis 500 µm in kontinuierlicher Verfahrensweise aus fadenbildenden Polymeren durch Schmelzspinnen des Polymeren, gegebenenfalls Anblasen der gebildeten Polymerfäden unterhalb des Schmelzspinnkopfes mit einem Kühlmedium, Abkühlen der Fäden in einem Flüssigkeitsbad mit einer Temperatur von -10°C bis 150°C, Entfernen des Schleppwassers und Nachbehandeln der Fäden durch Präparieren, Verstrecken und Fixieren mit einer Auslaufgeschwindigkeit der Fäden nach dem Fixierschritt von größer 600 bis 4000 m/min.The invention relates to a high-speed production process for the production of monofilament threads with a diameter of 60 microns to 500 microns in a continuous procedure from thread-forming polymers by melt spinning the polymer, optionally blowing the formed polymer threads below the melt spinning head with a cooling medium, cooling the threads in a liquid bath with a Temperature from -10 ° C to 150 ° C, removal of the drag water and post-treatment of the threads by preparation, stretching and fixing with an outlet speed of the threads after the fixing step of greater than 600 to 4000 m / min.

Verfahren zur Herstellung und Weiterbehandlung von Monofilamenten sind grundsätzlich bekannt. In dem Handbuch der Kunststoff-Extrusionstechnik II, Carl Hanser Verlag München, Wien, 1986, Seite 295 bis Seite 319 sind die bekannten Verfahrensschritte im einzelnen beschrieben. Danach können thermoplastische Monofile (mit einem Durchmesser größer als 60 µm) durch Abspinnen, z.B. in Wasser, mit einer Auslaufgeschwindigkeit von maximal 600 m/min produziert werden.Processes for the production and further treatment of monofilaments are known in principle. The known process steps are described in detail in the handbook of plastic extrusion technology II, Carl Hanser Verlag Munich, Vienna, 1986, page 295 to page 319. Thereafter, thermoplastic monofilaments (with a diameter greater than 60 µm) can be spun, e.g. in water, with a maximum discharge speed of 600 m / min.

Monofile mit wesentlich kleinerem Querschnitt und multifile Fäden werden mit einer deutlich höheren Auslaufgeschwindigkeit nach anderen Verfahren direkt in Luft gesponnen. So beschreibt die deutsche Offenlegungsschrift DE 41 29 521 A1 eine Vorrichtung zum Schnellspinnen von multifilen Fäden bei Aufwickelgeschwindigkeiten von mindestens 2000 m/min., insbesondere von mindestens 5.000 m/min.Monofilaments with a much smaller cross-section and multifilament threads are spun directly in air at a significantly higher outlet speed using other processes. For example, German published patent application DE 41 29 521 A1 describes a device for the rapid spinning of multifilament threads at winding speeds of at least 2000 m / min., In particular of at least 5,000 m / min.

Im Gegensatz zum erfindungsgemäßen Verfahren werden hierbei multifile Fäden in Luft abgesponnen und direkt aufgewickelt. Besonderheit dieses Patentes ist die Kühleinrichtung. Sie besteht aus einem porösen, in Spinnrichtung offenen Rohr, welches konzentrisch zur Spinnlinie angeordnet ist. Bei den hohen Aufwickelgeschwindigkeiten wird auf eine aktive Zufuhr eines Kühlmediums verzichtet. Das dort beschriebene Verfahren bezieht sich auf Filamentgarne mit Einzeltiter der Filamente von 0,1 bis 6 dtex und ist nicht auf Monofile mit einem Durchmesser von größer 50 µm (ca. 20 dtex) anwendbar.In contrast to the method according to the invention, multifilament threads are spun in air and wound up directly. A special feature of this patent is the cooling device. It consists of a porous tube open in the spinning direction, which is arranged concentrically to the spinning line. At the high winding speeds, there is no active supply of a cooling medium. The process described there relates to filament yarns with individual filament titer of 0.1 to 6 dtex and is not applicable to monofilaments with a diameter of greater than 50 µm (approx. 20 dtex).

Aus der internationalen Anmeldung WO 91/11547 sind ein Verfahren und eine Vorrichtung Zum Schnellspinnen von Monofilamenten mit einem Einzeltiter von 1 bis 30 dtex (entsprechend ca. 10 bis 55 µm) bekannt. Hierbei werden die schmelzgesponnenen Monofile mit Blasluft gekühlt, über ein Reibelement abgezogen, mit einer Präparation versehen und mit einer Geschwindigkeit bis zu 6.000 m/min aufgespult. Dieses Verfahren unterscheidet sich nur bezüglich der aktiven Kühlung der Monofile durch Blasluft und dem Reibelement, über das die Fadenspannung beeinflußt wird, von dem Verfahren gemäß DE 41 29 521 A1.From the international application WO 91/11547 a method and a device for the rapid spinning of monofilaments with a single titer of 1 to 30 dtex (corresponding to approx. 10 to 55 µm) are known. The melt-spun monofilaments are cooled with blown air, drawn off via a friction element, provided with a preparation and wound up at a speed of up to 6,000 m / min. This method only differs from the method according to DE 41 29 521 A1 with regard to the active cooling of the monofilaments by blown air and the friction element, by means of which the thread tension is influenced.

Prinzipiell sind beide Direktspinnstreckverfahren (DE 41 29 521 A1 und WO 91/11547) durch die ungünstige Wärmeabfuhr auf Grund der Luftkühlung und der schlechten inneren Wärmeleitung im Draht auf dünne Monofildurchmesser (⌀ < 55 µm) begrenzt.In principle, both direct spinning drawing processes (DE 41 29 521 A1 and WO 91/11547) are limited to thin monofilament diameters (⌀ <55 µm) due to the unfavorable heat dissipation due to air cooling and the poor internal heat conduction in the wire.

Aufgabe der vorliegenden Erfindung ist es, ein kontinuierliches Verfahren zum Schmelzspinnen von monofilen Fäden mit einem Durchmesser von 60 bis 500 µm aus fadenbildenden Polymeren, insbesondere Polyamid, bereitzustellen, bei dem in ein Kühlbad gesponnen wird und das trotz der hohen Auslaufgeschwindigkeit von 600 bis 4000 m/min, besonders bei Durchfahren des Kühlbades, noch beherrschbar ist, sowie eine den bisher bekannten Produktionsverfahren (bei 200 bis 400 m/min Auslaufgeschwindigkeit; siehe Handbuch der Kunststoffextrusionstechnik II, Hanser-Verlag (1989) Patente, Knapp, Hensen Kap. 10) mindestens vergleichbare Fadenqualität liefert.The object of the present invention is to provide a continuous process for melt spinning monofilament threads with a diameter of 60 to 500 microns from thread-forming polymers, in particular polyamide, in which spinning is carried out in a cooling bath, despite the high outlet speed of 600 to 4000 m / min, especially when driving through the cooling bath, is still manageable, as well as one of the previously known production processes (at 200 to 400 m / min run-out speed; see manual of Kunststoffextrusionstechnik II, Hanser-Verlag (1989) Patents, Knapp, Hensen Chap. 10) provides at least comparable thread quality.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß das fadenbildende Polymer an Luft schmelzgesponnen; die gesponnenen Fäden in einem Flüssigkeitsbad mit einer Temperatur von -10 bis 150°C abgekühlt und umgelenkt werden, wobei die durch die Schleppströmung der Fäden verursachte Fluidströmung gegebenenfalls beruhigt wird; die Fäden durch Abstreifen und/oder Abschleudern von Schleppwasser befreit und anschließend durch gegebenenfalls Präparieren, Verstrecken und Fixieren nachbehandelt werden. Anschließend werden die Fäden aufgewickelt, wobei die Fadenauslaufgeschwindigkeit mindestens 600 bis 4000 m/min beträgt.The object is achieved in that the thread-forming polymer melt-spun in air; the spun threads in a liquid bath cooled and redirected at a temperature of -10 to 150 ° C, the fluid flow caused by the drag flow of the threads possibly being calmed; the threads are removed from the water by stripping and / or centrifuging and subsequently treated by optionally preparing, stretching and fixing. The threads are then wound up, the thread outlet speed being at least 600 to 4000 m / min.

Gegenstand der Erfindung ist ein kontinuierliches Verfahren zur Herstellung von Monofilen mit einem Durchmesser von 60 µm bis 500 µm, bevorzugt von 100 bis 300 µm, durch Schmelzspinnen des Polymeren, gegebenenfalls Anblasen der gebildeten Polymerfäden unterhalb des Schmelzspinnkopfes mit einem Kühlmedium, Abkühlen der Fäden in einem Flüssigkeitsbad mit einer Temperatur der Kühlflüssigkeit von -10°C bis 150°C, Umlenken der Fäden im Flüssigkeitsbad an einem Fadenführer, gegebenenfalls Beruhigung der durch die Schleppströmung der Fäden verursachten Fluidströmung im Flüssigkeitsbad, Abstreifen und Abschleudern des Schleppfluids am Ausgang des Flüssigkeitsbades, Absaugen des restlichen Schleppfluids, gegebenenfalls Aufbringen einer Präparation, Verstrecken in einer oder mehreren Stufen in Heißluft, Heißwasser oder Dampf oder einer Kombination dieser Medien, Fixieren der verstreckten Fäden in Heißluft und/oder Dampf und abschließendem Aufwickeln der Fäden, wobei die Auslaufgeschwindigkeit der Fäden nach dem Fixierschritt von 600 bis 4000 m/min, bevorzugt 1000 bis 3500 m/min, beträgt.The invention relates to a continuous process for the production of monofilaments with a diameter of 60 microns to 500 microns, preferably from 100 to 300 microns, by melt spinning the polymer, optionally blowing the formed polymer threads below the melt spinning head with a cooling medium, cooling the threads in one Liquid bath with a temperature of the cooling liquid from -10 ° C to 150 ° C, deflecting the threads in the liquid bath on a thread guide, possibly calming the fluid flow in the liquid bath caused by the drag flow of the threads, stripping and throwing off the drag fluid at the outlet of the liquid bath, suctioning off the remaining entraining fluids, optionally applying a preparation, drawing in one or more stages in hot air, hot water or steam or a combination of these media, fixing the drawn threads in hot air and / or steam and finally winding the threads, where di e speed of the threads after the fixing step is from 600 to 4000 m / min, preferably 1000 to 3500 m / min.

Aus einem im Prinzip bekannten Spinnkopf wird die Polymerschmelze in Luft abgesponnen. Grundsätzlich geeignet sind hierzu alle fadenbildenden Polymere, die sich in der Schmelze verarbeiten lassen, besonders Polyamid, Polyester, Polyethylen, Polyphenylensulfid, Polypropylen und Polyacrylnitril. Insbesondere geeignet sind hierunter Polyamide, wie Polyamid-6, Polyamid-66, Polyamid-12, Polyamid-6/T, und Copolyamide, wie Polyamid-66/6, Polyamid-12/6, Polyamid-11/6 und Polyamid-6/10, sowie Mischungen aus diesen. Besonders bevorzugt ist Polyamid-6 mit einer Lösungsviskosität ηrel von 2,8 bis 4,4 als 1%ige Lösung, gemessen in m-Kresol bei 25°C.The polymer melt is spun in air from a spinning head known in principle. In principle, all thread-forming polymers which can be processed in the melt are particularly suitable, in particular polyamide, polyester, polyethylene, polyphenylene sulfide, polypropylene and polyacrylonitrile. Particularly suitable among these are polyamides, such as polyamide-6, polyamide-66, polyamide-12, polyamide-6 / T, and copolyamides, such as polyamide-66/6, polyamide-12/6, polyamide-11/6 and polyamide-6 / 10, and mixtures of these. Polyamide-6 with a solution viscosity η rel of 2.8 to 4.4 as a 1% solution, measured in m-cresol at 25 ° C., is particularly preferred.

Bevorzugt werden die gebildeten Polymerfäden unterhalb des Spinnkopfes seitlich über eine Strecke von 1 bis 10 cm mit temperierter Luft von 0 bis 50°C, bevorzugt 10 bis 25°C, aus Blasdüsen angeblasen, um die Laufruhe der Fäden zu stabilisieren. Anschließend werden die Polymerfäden in einem Flüssigkeitsbad mit einer Flüssigkeitstemperatur von -10°C bis 150°C, bevorzugt von 10 bis 40°C, abgekühlt. Die Fäden werden noch im Flüssigkeitsbad an einer Fadenführung aus der Senkrechten in Richtung des Beckenrandes des Flüssigkeitsbades umgelenkt. Bevorzugt wird die Bildung von Flüssigkeitsströmungen im Flüssigkeitsbad durch den Einbau von Strömungsbrechern vermieden.The polymer threads formed are preferably blown from the blow nozzles laterally over a distance of 1 to 10 cm with tempered air from 0 to 50 ° C., preferably 10 to 25 ° C., in order to stabilize the smooth running of the threads. The polymer threads are then cooled in a liquid bath with a liquid temperature of from -10 ° C. to 150 ° C., preferably from 10 to 40 ° C. The threads are deflected in the liquid bath on a thread guide from the vertical towards the pool edge of the liquid bath. The formation of liquid flows in the liquid bath is preferably avoided by installing flow breakers.

Geeignete Kühlflüssigkeiten für das Flüssigkeitsbad sind alle gegenüber dem Polymeren der Fäden inerten Flüssigkeiten, wie z.B. Wasser, Öle (z.B. Silikonöl), Kohlenwasserstoffe, Chlorkohlenwasserstoffe etc. Bevorzugte Kühlflüssigkeit für das Flüssigkeitsbad ist Wasser.Suitable cooling liquids for the liquid bath are all liquids which are inert to the polymer of the threads, e.g. Water, oils (e.g. silicone oil), hydrocarbons, chlorinated hydrocarbons etc. The preferred cooling liquid for the liquid bath is water.

Das bei der hohen Verarbeitungsgeschwindigkeit aus dem Kühlbad mitgerissene Schleppfluid wird bevorzugt von den Fäden mit Abstreifen abgestriffen und am Ausgang des Flüssigkeitsbades an Zugrollen abgeschleudert. Restliches Schleppfluid wird von den Fäden an einer Absaugeinheit abgesaugt und die Fäden anschließend den weiteren Nachbehandlungsschritten zugeführt. Die zunächst folgende mögliche Präparation der Fäden erfolgt in an sich bekannter Weise durch Aufbringen eines gegebenenfalls wäßrigen Präparationsmittels an der Präparationsstelle. Geeignete Präparationen hierfür sind alle Gleitmitteldispersionen auf der Basis von z.B. natürlichen und synthetischen Fetten und Esterölen, Mineralölen, Silikonölen, Paraffinwachsen, Polyethylen- bzw. Polypropylenwachsen, Kondensaten aus Fettsäuren mit Polyalkylenpolyaminen und deren Derivaten, Additionsprodukte von Alkylenoxiden an Fettalkohole, Fettamine oder Fettsäuren u.ä., Organophosphorsäureestern, nichtionischen und anionischen Tensiden etc..The trailing fluid entrained from the cooling bath at the high processing speed is preferably stripped off by the threads with wipers and thrown off at the exit of the liquid bath on pulling rollers. Residual entraining fluid is sucked off the threads on a suction unit and the threads are then fed to the further post-treatment steps. The following possible preparation of the threads is carried out in a manner known per se by applying an optionally aqueous preparation agent to the preparation site. Suitable preparations for this are all lubricant dispersions based on e.g. natural and synthetic fats and ester oils, mineral oils, silicone oils, paraffin waxes, polyethylene or polypropylene waxes, condensates from fatty acids with polyalkylene polyamines and their derivatives, addition products of alkylene oxides with fatty alcohols, fatty amines or fatty acids and the like, organophosphoric acid esters, nonionic and anionic surfactants etc. .

Der Präparationsschritt kann gegebenenfalls auch nach dem Verstrecken oder Fixieren erfolgen.The preparation step can optionally also be carried out after stretching or fixing.

Die gegebenenfalls präparierten Fäden werden anschließend in einer oder mehreren Stufen, bevorzugt in einer bis vier Stufen, in Heißluft mit einer Temperatur von 150 bis 350°C, Heißwasser mit einer Temperatur von 85 bis 98°C oder Dampf mit einer Temperatur von 100 bis 150°C oder einer beliebigen Kombination dieser Medien um 200 bis 700 % verstreckt, wobei der maximale Verstreckgrad sich nach der für das jeweilige Polymer typischen Verstreckbarkeit richtet.The optionally prepared threads are then in one or more stages, preferably in one to four stages, in hot air at a temperature of 150 to 350 ° C, hot water at a temperature of 85 to 98 ° C or steam stretched at a temperature of 100 to 150 ° C or any combination of these media by 200 to 700%, the maximum degree of stretching being based on the stretchability typical of the respective polymer.

Die verstreckten Fäden werden anschließend in Heißluft mit einer Temperatur von 150 bis 350°C und /oder Dampf mit einer Temperatur von 100 bis 150°C fixiert und dann mit einer Geschwindigkeit von 600 bis 4000 m/min, bevorzugt von 1000 bis 3500 m/min, aufgewickelt. Bevorzugt wird an jeder Spulstelle zusätzlich noch eine besondere Nachpräparation (Avivage) aufgebracht. Als Avivage eignen sich alle Gleitmittelmitteldispersionen auf der Basis von z.B. natürlichen und synthetischen Fetten und Esterölen, Mineralölen, Silikonölen, Paraffinwachsen, Polyethylen- bzw. Polypropylenwachsen, Kondensaten aus Fettsäuren mit Polyalkylenpolyaminen und deren Derivate, Additionsprodukte von Alkylenoxiden an Fettalkohole, Fettamine oder Fettsäuren u.ä., Organophosphorsäureestern, nichtionischen und anionischen Tensiden etc..The drawn threads are then fixed in hot air at a temperature of 150 to 350 ° C. and / or steam at a temperature of 100 to 150 ° C. and then at a speed of 600 to 4000 m / min, preferably from 1000 to 3500 m / min, wound up. A special finishing agent (finishing agent) is preferably additionally applied to each winding unit. All lubricant dispersions based on e.g. natural and synthetic fats and ester oils, mineral oils, silicone oils, paraffin waxes, polyethylene or polypropylene waxes, condensates from fatty acids with polyalkylene polyamines and their derivatives, addition products of alkylene oxides with fatty alcohols, fatty amines or fatty acids and the like, organophosphoric acid esters, nonionic and anionic surfactants etc. .

Die Erfindung wird beispielhaft anhand der nachstehenden Figuren und weiteren Ausführungsbeispielen noch einmal erläutert.The invention is explained once again by way of example with reference to the figures below and further exemplary embodiments.

Es zeigen hierbei:

Fig. 1
eine schematische Abbildung des Gesamtverfahrens,
Fig. 2
das erfindungsgemäße Flüssigkeitsbad mit Fadenführung und Strömungsbrechern,
Fig. 3
die erfindungsgemäße Fadenführung,
Fig. 4
bevorzugte erfindungsgemäße Strömungsbrecher.
They show:
Fig. 1
a schematic representation of the overall process,
Fig. 2
the liquid bath according to the invention with thread guide and flow breakers,
Fig. 3
the thread guide according to the invention,
Fig. 4
preferred flow breaker according to the invention.

Die durch übliche Pumpen (Zahnradpumpen) geförderte Polymerschmelze tritt an der Ringspinndüse 1 aus und wird aus Blasdüsen 2 mit 0 bis 50°C warmer Luft angeblasen, die zwischen Spinndüse 1 und Kühlflüssigkeit (z.B. Wasser) durch strömt. Die Fäden 17 tauchen in das Flüssigkeitsbad 3 ein und werden an der Fadenführung 4 in Richtung des Beckenrandes 5 umgelenkt. Die Fadenführung 4 besteht aus im Halbkreis angeordneten, stabförmigen Führungselementen 4' aus nicht rostendem Stahl oder Keramik. Die Fäden werden durch sogenannte Kämme 16 geführt, damit sie nicht aneinanderschlagen und verkleben. Wichtig ist, daß die Reibung zwischen Fäden 17 und Fadenführung 4, wie auch die Anzahl der Berührungspunkte, minimal sind.The polymer melt conveyed by conventional pumps (gear pumps) emerges at the annular spinneret 1 and is blown from blowing nozzles 2 with warm air at 0 to 50 ° C., which flows through between the spinneret 1 and the cooling liquid (eg water). The threads 17 are immersed in the liquid bath 3 and are deflected on the thread guide 4 in the direction of the pool edge 5. The thread guide 4 consists of rod-shaped guide elements 4 'arranged in a semicircle and made of stainless steel or ceramic. The threads are passed through so-called combs 16 so that they do not knock against one another and stick together. It is important that the friction between threads 17 and thread guide 4, as well as the number of points of contact, are minimal.

Die besondere Fadenführung (Fig. 3) ist ein weiterer Gegenstand der Erfindung. Die Führungselemente 4' der Fadenführung 4 sind so ausgebildet, daß die Fäden 17 bei der hohen Abzugsgeschwindigkeit durch das mitgeführte Schleppwasser - ähnlich dem Gleitlagereffekt - über die Führungselemente 4' gleiten und somit gleichsam berührungslos geführt werden.The special thread guide (Fig. 3) is another object of the invention. The guide elements 4 'of the thread guide 4 are designed in such a way that the threads 17 slide over the guide elements 4' at the high take-off speed through the entrained water - similar to the slide bearing effect - and are thus guided, as it were, without contact.

Bevorzugt wird ein Flüssigkeitsbad 3 mit Strömungsbrechern 6, 6' eingesetzt. Durch die Strömungsbrecher 6, 6' (siehe z.B. Fig. 4) wird die durch die Schleppströmung der Fäden 17 verursachte Flüssigkeitsströmung beruhigt. Die Strömungsbrecher 6 sind quer zur Fadenlaufrichtung unter und teilweise oberhalb der Fadenschar angeordnet (siehe Fig. 4). Die oberen Strömungsbrecher 6' können zum Anlegen der Fäden hochgeklappt werden.A liquid bath 3 with baffles 6, 6 'is preferably used. The flow breakers 6, 6 '(see e.g. FIG. 4) calm the liquid flow caused by the drag flow of the threads 17. The flow breakers 6 are arranged transversely to the thread running direction below and partly above the thread family (see FIG. 4). The upper flow breakers 6 'can be folded up to put on the threads.

Nach dem Austritt aus dem Flüssigkeitsbad 3 werden die Fäden 17 mittels eines Abstreifers 7 vom Schleppfluid (z.B. Wasser) befreit. Weiteres Schleppfluid wird durch Umlenken der Fäden an Umlenkrollen 8 abgeschleudert. Bevorzugt werden Kimmenrollen zur besseren Entfernung (Abschleudern) des Schleppwassers eingesetzt. Weiteres, auf den Fäden verbliebenes Schleppwasser wird mit der Haftwasser-Absaugung 9 entfernt. Anschließend wird die Spinnpräparation an der Präparatiosstelle 10 mit einer Präparationsrolle oder in einer Sprühkammer mit Düsen auf die Fäden aufgetragen und mit einem Abstreifer vergleichmäßigt.After exiting the liquid bath 3, the threads 17 are freed of the trailing fluid (e.g. water) by means of a scraper 7. Further drag fluid is thrown off by deflecting the threads on deflection rollers 8. Rear sight rolls are preferred for better removal (throwing off) of the towing water. Further drag water remaining on the threads is removed with the adhesive water suction 9. The spin preparation is then applied to the threads at the preparation site 10 with a preparation roller or in a spray chamber with nozzles and is evened out with a stripper.

Unter Umständen ist es notwendig, die überflüssige Präparation mit einer weiteren Haftwasser-Absaugung 11 zu entfernen.Under certain circumstances, it is necessary to remove the unnecessary preparation with a further adhesive water suction 11.

Anschließend werden die Fäden beispielsweise über ein Walzenseptett 12 der Verstreckungszone 13 zugeführt. Die Fäden werden beispielsweise in zwei Stufen in Heißluft bei einer Temperatur von 240 bis 260°C und insgesamt 420 % verstreckt.The threads are then fed to the drawing zone 13, for example via a roller septet 12. For example, the threads are drawn in two stages in hot air at a temperature of 240 to 260 ° C and a total of 420%.

Die Fixierung in der Fixierzone 14 erfolgt bevorzugt in Heißluft bei z.B. 250 bis 260°C. Die Fäden werden dann bei einer Aufwickelgeschwindigkeit von bis zu 4000 m/min auf die Wickelstellen 15 aufgewickelt.The fixing in the fixing zone 14 is preferably carried out in hot air at, for example, 250 to 260 ° C. The threads are then wound onto the winding stations 15 at a winding speed of up to 4000 m / min.

BeispieleExamples

Entsprechend der oben dargelegten Ausführungsform wurden Monofile aus reinem Polyamid-6 und Copolyamid (85 % PA 6 mit 15 % PA 6.6) hergestellt. Vor dem Abkühlen im Flüssigkeitsbad wurden die aus dem Spinnkopf austretenden Monofile direkt unterhalb der Spinndüse mit Luft (25°C) senkrecht angeblasen.According to the embodiment set out above, monofilaments were made from pure polyamide-6 and copolyamide (85% PA 6 with 15% PA 6.6). Before cooling in the liquid bath, the monofilaments emerging from the spinning head were blown vertically with air (25 ° C.) directly below the spinneret.

Die Verfahrensparameter sind im einzelnen in der nachstehenden Tabelle 1 aufgeführt.The process parameters are detailed in Table 1 below.

Das Vergleichsbeispiel stellt die heute übliche Produktion von Polyamid-6-Monofilen dar.

Figure imgb0001
The comparative example represents the usual production of polyamide 6 monofilaments today.
Figure imgb0001

Claims (11)

Kontinuierliches Verfahren zur Herstellung von monofilen Fäden mit einem Durchmesser von 60 µm bis 500 µm aus fadenbildenden Polymeren durch Schmelzspinnen des Polymeren, gegebenenfalls Anblasen der gebildeten Polymerfäden unterhalb des Schmelzspinnkopfes mit einem Kühlmedium, Abkühlen der Fäden (17) in einem Flüssigkeitsbad (3) mit einer Temperatur der Kühlflüssigkeit von -10°C bis 150°C, Umlenken der Fäden im Flüssigkeitsbad (3) an einer Fadenführung (4), gegebenenfalls Beruhigung der durch die Schleppströmung der Fäden verursachten Fluidströmung, Abstreifen und Abschleudern der mitgeschleppten Flüssigkeit am Ausgang des Flüssigkeitsbades, Absaugen der restlichen Schleppflüssigkeit, gegebenenfalls Aufbringen einer Präparation, Verstrecken in einer oder mehreren Stufen in Heißluft, Heißwasser oder Dampf oder einer Kombination dieser Medien, Fixieren der verstreckten Fäden in Heißluft und/oder Dampf und abschließendes Aufwickeln der Fäden, wobei die Auslaufgeschwindigkeit der Fäden nach dem Fixierschritt von 600 bis 4000 m/min beträgt.Continuous process for the production of monofilament threads with a diameter of 60 µm to 500 µm from thread-forming polymers by melt spinning the polymer, optionally blowing the formed polymer threads below the melt spinning head with a cooling medium, cooling the threads (17) in a liquid bath (3) with a Temperature of the cooling liquid from -10 ° C to 150 ° C, deflecting the threads in the liquid bath (3) on a thread guide (4), possibly calming the fluid flow caused by the drag flow of the threads, stripping and spinning off the entrained liquid at the outlet of the liquid bath, Aspirating the remaining dragging liquid, possibly applying a preparation, stretching in one or more stages in hot air, hot water or steam or a combination of these media, fixing the stretched threads in hot air and / or steam and finally winding up the threads, the Auslaufg speed of the threads after the fixing step is from 600 to 4000 m / min. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die Auslaufgeschwindigkeit der Fäden von 1000 bis 3500 m/min beträgt.A method according to claim 1, characterized in that the outlet speed of the threads is from 1000 to 3500 m / min. Verfahren gemäß den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Fäden einen Enddurchmesser von 100 bis 300 µm aufweisen.Process according to claims 1 and 2, characterized in that the threads have a final diameter of 100 to 300 µm. Verfahren gemäß den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Fäden einen Enddurchmesser von 180 bis 250 µm aufweisen.Process according to claims 1 to 3, characterized in that the threads have a final diameter of 180 to 250 µm. Verfahren gemäß den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß als fadenbildende Polymere Polyamide verwendet werden.Process according to claims 1 to 4, characterized in that polyamides are used as thread-forming polymers. Verfahren gemäß den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß die gebildeten Fäden unterhalb des Spinnkopfes (1) auf einer Strecke von 1 bis 10 cm mit Luft einer Temperatur von 0 bis 50°C seitlich angeblasen werden.Process according to claims 1 to 5, characterized in that the threads formed are blown to the side below the spinning head (1) over a distance of 1 to 10 cm with air at a temperature of 0 to 50 ° C. Verfahren gemäß den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß die Temperatur des Kühlbades (3) bis 10 bis 40°C beträgt.Process according to claims 1 to 6, characterized in that the temperature of the cooling bath (3) is up to 10 to 40 ° C. Verfahren gemäß den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß zur Beruhigung der Fluidströmung im Kühlbad (3) Strömungsbrecher (6, 6') eingesetzt werden, von denen die oberhalb der Fadenschar gelegenen Strömungsbrecher (6') bei laufendem Verfahren nach oben weggeklappt werden können.Process according to claims 1 to 7, characterized in that flow breakers (6, 6 ') are used to calm the fluid flow in the cooling bath (3), from which the flow breakers (6') located above the thread sheet are folded upwards while the process is running can. Verfahren gemäß den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß die Fäden in Heißluft mit einer Temperatur von 150 bis 350°C, Heißwasser mit einer Temperatur von 85 bis 98°C oder Dampf mit einer Temperatur von 100 bis 150°C oder einer beliebigen, hintereinandergeschalteten Kombination dieser Medien um 200 bis 700 % verstreckt werden und anschließend in Heißluft einer Temperatur von 150 bis 350°C und/oder Dampf mit einer Temperatur von 100 bis 150°C fixiert werden.Process according to claims 1 to 8, characterized in that the threads in hot air at a temperature of 150 to 350 ° C, hot water at a temperature of 85 to 98 ° C or steam at a temperature of 100 to 150 ° C or any , series-connected combination of these media are stretched by 200 to 700% and then fixed in hot air at a temperature of 150 to 350 ° C and / or steam at a temperature of 100 to 150 ° C. Vorrichtung zur Durchführung des Verfahrens gemäß den Ansprüchen 1 bis 9, bestehend aus einem Schmelzspinnkopf mit Spinndüse (1), einer Anblasdüse (2), einem Flüssigkeitsbad (3) mit einer speziellen Fadenführung (4) und Strömungsbrechern (6, 6'), Abstreifern (7), mindestens einer Umlenkrolle (8) oder Kimmenrillenwalze zum Abschleudern von mitgeschleppter Kühlflüssigkeit, einer Haftflüssigkeitsabsaugung (9, 11) vor und eventuell nach der anschließenden Aufbringung (10) der Spinnpräparation, einer oder mehreren Verstreckvorrichtungen (12) zur Heißverstreckung, einer Fixierzone (13) und den Aufwickelstellen (15), dadurch gekennzeichnet, daß die Nachpräparation direkt als Einwegpräparation an jeder Spulstelle aufgebracht wird und die Wickelgeschwindigkeit von 600 m/min bis 4000 m/min liegt und sowohl die Monofile einzeln, aber auch mehrere zusammen, auf eine Spule gewickelt werden können.Device for carrying out the method according to claims 1 to 9, consisting of a melt spinning head with a spinneret (1), a blowing nozzle (2), a liquid bath (3) with a special thread guide (4) and flow breakers (6, 6 '), wipers (7), at least one deflecting roller (8) or scraper groove roller for throwing off entrained cooling liquid, an adhesive liquid suction (9, 11) before and possibly after the subsequent application (10) of the spin preparation, one or more stretching devices (12) for hot stretching, a fixing zone (13) and the winding stations (15), characterized in that the post-preparation is applied directly as a disposable preparation to each winding station and the winding speed is from 600 m / min to 4000 m / min and both the monofilaments individually, but also several together a coil can be wound. Vorrichtung gemäß Anspruch 10, dadurch gekennzeichnet, daß die Fadenführung (3) aus im Halbkreis angeordneten, stabförmigen Führungselementen (4') mit Kämmen (16) besteht, die die Fäden auf den Führungselementen einzeln führen.Device according to claim 10, characterized in that the thread guide (3) consists of rod-shaped guide elements (4 ') arranged in a semicircle with combs (16) which individually guide the threads on the guide elements.
EP94115963A 1993-10-22 1994-10-10 Continuous process and apparatus for melt spinning of monofilaments Expired - Lifetime EP0649920B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4336097 1993-10-22
DE4336097A DE4336097A1 (en) 1993-10-22 1993-10-22 Continuous process for melt spinning monofilament threads

Publications (2)

Publication Number Publication Date
EP0649920A1 true EP0649920A1 (en) 1995-04-26
EP0649920B1 EP0649920B1 (en) 1999-01-07

Family

ID=6500787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115963A Expired - Lifetime EP0649920B1 (en) 1993-10-22 1994-10-10 Continuous process and apparatus for melt spinning of monofilaments

Country Status (7)

Country Link
US (2) US5518670A (en)
EP (1) EP0649920B1 (en)
JP (1) JP3575842B2 (en)
AT (1) ATE175454T1 (en)
CA (1) CA2118478C (en)
DE (2) DE4336097A1 (en)
ES (1) ES2127328T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020200A1 (en) * 1996-11-07 1998-05-14 Bayer Faser Gmbh Monofilaments and their use in producing technical textile articles
CN112030247A (en) * 2020-09-14 2020-12-04 东纶科技实业有限公司 Water washing system of wet spinning coagulating bath

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600090A1 (en) * 1996-01-03 1997-07-10 Bayer Faser Gmbh Method and device for producing melt-spun monofilaments
JPH10219512A (en) * 1997-01-31 1998-08-18 Musashino Kikai:Kk Melt extrusion spinning and apparatus therefor
US6582634B2 (en) 1998-05-07 2003-06-24 Peri-Dent Limited Process of making a yarn
GB9817011D0 (en) * 1998-08-06 1998-09-30 Peri Dent Ltd Improvements in or relating to plastic yarn
EP1366221A4 (en) 2000-09-15 2006-01-18 First Quality Fibers Llc Apparatus for manufacturing optical fiber made of semi-crystalline polymer
EP1221499A1 (en) * 2001-01-05 2002-07-10 Acordis Industrial Fibers bv Method for stretch-spinning melt-spun yarns
WO2003060204A1 (en) * 2001-12-27 2003-07-24 Toyo Boseki Kabushiki Kaisha Spinneret, oiling device, production device and production method for synthetic fibers
DE10200406A1 (en) * 2002-01-08 2003-07-24 Zimmer Ag Spinning device and process with turbulent cooling blowing
DE10204381A1 (en) * 2002-01-28 2003-08-07 Zimmer Ag Ergonomic spinning system
DE10213007A1 (en) * 2002-03-22 2003-10-09 Zimmer Ag Method and device for controlling the indoor climate in a spinning process
DE10223268B4 (en) * 2002-05-24 2006-06-01 Zimmer Ag Wetting device and spinning system with wetting device
DE10314878A1 (en) * 2003-04-01 2004-10-28 Zimmer Ag Method and device for producing post-stretched cellulose filaments
DE102004024030A1 (en) 2004-05-13 2005-12-08 Zimmer Ag Lyocell process with polymerization-degree-dependent adjustment of the processing time
DE102004024028B4 (en) * 2004-05-13 2010-04-08 Lenzing Ag Lyocell method and apparatus with press water return
DE102004024029A1 (en) * 2004-05-13 2005-12-08 Zimmer Ag Lyocell method and apparatus with metal ion content control
US20060033231A1 (en) * 2004-08-10 2006-02-16 Reuter Rene F Monofilament reinforced rubber component and method of producing
KR20070113232A (en) * 2005-03-18 2007-11-28 디올렌 인두스트리알 피베르스 베.파우. Process for producing polyphenylene sulfide filament yarns
JP5140609B2 (en) * 2009-01-19 2013-02-06 クレハ合繊株式会社 Thermoplastic resin monofilament and method for producing the same
DE102010007497A1 (en) 2010-02-09 2011-08-11 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V., 07407 Heat-storing moldings
WO2012171835A1 (en) * 2011-06-15 2012-12-20 Trützschler Nonwovens Gmbh Spinning bath vat
US11124895B2 (en) * 2013-10-29 2021-09-21 Braskem America, Inc. System and method for measuring out a polymer and first solvent mixture, device, system and method for extracting a solvent from at least one polymer strand, system and method for mechanically pre-recovering at least one liquid from at least one polymer strand, and a continuous system and method for the production of at least one polymer strand
EP3034659A1 (en) * 2014-12-17 2016-06-22 Redco NV Improved polypropylene fibers, methods for producing the same and uses thereof for the production of fiber cement products
WO2018026333A1 (en) * 2016-08-03 2018-02-08 Kordsa Teknik Tekstil Anonim Sirketi Apparatus and method for multifilament yarn production
CN106367824B (en) * 2016-10-31 2018-09-21 哈尔滨天顺化工科技开发有限公司 A kind of big cornerite for spinning holds drawing-off roller group
CN106521783A (en) * 2017-01-20 2017-03-22 南通杰克拜尼服帽有限公司 Manufacturing process for knitted hat
CN106835475A (en) * 2017-01-20 2017-06-13 南通杰克拜尼服帽有限公司 A kind of manufacture craft of knitting sweatband
CN108754641B (en) * 2018-08-21 2024-02-27 江西东华机械有限责任公司 Coagulating bath water tank convenient for head growing
CN110747519A (en) * 2019-10-22 2020-02-04 齐齐哈尔大学 Preparation method of high-strength polypropylene fiber
WO2021124259A1 (en) * 2019-12-18 2021-06-24 Garware Technical Fibres Limited Method of manufacturing yarn for polymer net and system for the same
JP7021328B2 (en) * 2020-11-10 2022-02-16 コルドサ・テクニク・テクスティル・アノニム・シルケティ Methods for manufacturing monofilament yarns
CN113622048B (en) * 2021-08-06 2023-11-07 浙江巴斯特网丝有限公司 Preparation method of polyester monofilament for papermaking net
CN117071092B (en) * 2023-10-18 2024-01-05 德州市纤维检验所 Spinning device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1710620A1 (en) * 1968-03-14 1972-03-23 Hoechst Ag Method and device for the production of round wires from synthetic linear high polymers
US3905381A (en) * 1973-09-07 1975-09-16 Phillips Petroleum Co Filament liquid quenching apparatus
US4037288A (en) * 1973-09-07 1977-07-26 Phillips Petroleum Company Filament liquid quenching apparatus
DE3409450A1 (en) * 1984-03-15 1985-09-26 Bayer Ag, 5090 Leverkusen Process and apparatus for deflecting monofilaments in a cooling bath
EP0540062A2 (en) * 1988-07-15 1993-05-05 E.I. Du Pont De Nemours And Company Process and apparatus for spinning and drawing monofilaments with high tenacity and high tensile uniformity

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746839A (en) * 1953-06-26 1956-05-22 Pittsburgh Plate Glass Co Method of spinning shaped filaments of plastic materials
GB787563A (en) * 1954-04-12 1957-12-11 British Celanese Improvements in or relating to the production and treatment of artificial and other filamentary materials
US2875019A (en) * 1956-01-17 1959-02-24 Firestone Tire & Rubber Co Method for producing crimped filaments
US3002804A (en) * 1958-11-28 1961-10-03 Du Pont Process of melt spinning and stretching filaments by passing them through liquid drag bath
US3041663A (en) * 1958-12-23 1962-07-03 Pittsburgh Plate Glass Co Method and apparatus for forming fibers
GB911800A (en) * 1959-06-18 1962-11-28 Du Pont Nylon monofilaments
US3029124A (en) * 1959-08-24 1962-04-10 Koppers Co Inc Process for producing polyethylene monofilaments
US3091805A (en) * 1960-11-02 1963-06-04 Du Pont Apparatus and process for drawing yarn
NL281284A (en) * 1961-07-24
NL292014A (en) * 1962-04-27
BE644325A (en) * 1963-02-28 1964-08-25
US3221088A (en) * 1964-11-02 1965-11-30 Eastman Kodak Co Process and apparatus for orienting yarn
GB1111649A (en) * 1965-07-08 1968-05-01 Fuji Boseki Kabushiki Kaisha Method and apparatus for melt spinning of synthetic filaments
US3518722A (en) * 1967-10-31 1970-07-07 Fmc Corp Guide for incompletely solidified polymeric article
US3621088A (en) * 1968-08-09 1971-11-16 Phillips Petroleum Co High production of water-quenched filaments
US3790655A (en) * 1971-03-02 1974-02-05 E B & A C Whiting Co Method for commingling and orienting colored sets of thermoplastic filaments
JPS516241B2 (en) * 1972-05-30 1976-02-26
US3993805A (en) * 1972-07-31 1976-11-23 Concorde Fibers Inc. Method of applying liquid finish composition to filaments
US4265849A (en) * 1979-05-29 1981-05-05 Phillips Petroleum Company Method for producing multifilament thermoplastic yarn having latent crimp
EP0030648B1 (en) * 1979-11-30 1984-03-07 Sekisui Jushi Kabushiki Kaisha Method for the production of polyethylene terephthalate packing material
EP0172924B1 (en) * 1984-08-14 1989-03-15 Mitsubishi Jukogyo Kabushiki Kaisha Sheet forming apparatus
JPH086203B2 (en) * 1986-07-03 1996-01-24 東レ株式会社 Method for producing thermoplastic synthetic fiber
CA2049989A1 (en) * 1990-02-05 1991-08-06 Klaus Fischer Process and device for the high-speed spinning of monofilaments, and monofilaments thus manufactured
AU7826391A (en) * 1990-06-14 1991-12-19 E.I. Du Pont De Nemours And Company Polyester monofilaments for reinforcing tires
US5171504A (en) * 1991-03-28 1992-12-15 North Carolina State University Process for producing high strength, high modulus thermoplastic fibers
DE4129521A1 (en) * 1991-09-06 1993-03-11 Akzo Nv Cooling chimney for high speed melt spinning
US5362430A (en) * 1993-07-16 1994-11-08 E. I. Du Pont De Nemours And Company Aqueous-quench spinning of polyamides

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1710620A1 (en) * 1968-03-14 1972-03-23 Hoechst Ag Method and device for the production of round wires from synthetic linear high polymers
US3905381A (en) * 1973-09-07 1975-09-16 Phillips Petroleum Co Filament liquid quenching apparatus
US4037288A (en) * 1973-09-07 1977-07-26 Phillips Petroleum Company Filament liquid quenching apparatus
DE3409450A1 (en) * 1984-03-15 1985-09-26 Bayer Ag, 5090 Leverkusen Process and apparatus for deflecting monofilaments in a cooling bath
EP0540062A2 (en) * 1988-07-15 1993-05-05 E.I. Du Pont De Nemours And Company Process and apparatus for spinning and drawing monofilaments with high tenacity and high tensile uniformity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998020200A1 (en) * 1996-11-07 1998-05-14 Bayer Faser Gmbh Monofilaments and their use in producing technical textile articles
CN112030247A (en) * 2020-09-14 2020-12-04 东纶科技实业有限公司 Water washing system of wet spinning coagulating bath

Also Published As

Publication number Publication date
US5518670A (en) 1996-05-21
CA2118478A1 (en) 1995-04-23
CA2118478C (en) 2004-04-27
ES2127328T3 (en) 1999-04-16
DE59407594D1 (en) 1999-02-18
JPH07166411A (en) 1995-06-27
US5785997A (en) 1998-07-28
JP3575842B2 (en) 2004-10-13
ATE175454T1 (en) 1999-01-15
EP0649920B1 (en) 1999-01-07
DE4336097A1 (en) 1995-04-27

Similar Documents

Publication Publication Date Title
EP0649920B1 (en) Continuous process and apparatus for melt spinning of monofilaments
DE3781313T3 (en) Method and device.
EP0937791B1 (en) Process and apparatus for the spinning of a multifilament yarn
EP2283173B1 (en) Method for taking up and drawing a multifilament during melt-spinning, and apparatus for carrying out said method
DE3786376T2 (en) Method and device for the production of synthetic thermoplastic yarns.
DE102007031755A1 (en) Process and assembly to cool extruded hotmelt polymer fibers in cooling duct delivering warm ambient air
WO1997025458A1 (en) Process and device for the formation of monofilaments produced by melt-spinning
EP0682720B1 (en) Melt spinning process to produce filaments
EP2567008B1 (en) Process and apparatus for melt-spinning, drawing and winding multiple synthetic threads
EP1283284A1 (en) Drawing device and method for producing drawn synthetic filaments
WO2004007817A1 (en) Method and device for melt-spinning and cutting a tow
WO2001086041A1 (en) Method and device for conveying continuous shaped bodies without tensile stress
EP1352114A1 (en) Method for spin stretching extruded threads
WO1998036110A1 (en) Drawing device and method for producing drawn synthetic filaments
DE19753806A1 (en) Skewed multiple turn rollers for yarn washing in viscose filament yarn spinning
EP1486592B1 (en) Apparatus for spinning and treating synthetic filaments
WO1992001093A1 (en) Process and device for making synthetic threads or fibres from polymers, especially polyamide, polyester or polypropylene
DE3036683C2 (en) Process for melt spinning synthetic polymers
DE1902213A1 (en) Process for the production of polyamide ruffles
DE69803610T2 (en) Highly oriented polymer fiber and process for its manufacture
DE10338821B4 (en) Process for producing fine fibers
CH626922A5 (en)
EP0423278B1 (en) Process for the production of fine monofilaments, and a monofilament produced by this process
DE3409450A1 (en) Process and apparatus for deflecting monofilaments in a cooling bath
DE2650039A1 (en) Apparatus for the production of threads made from curled filaments

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: A1

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

17P Request for examination filed

Effective date: 19951024

17Q First examination report despatched

Effective date: 19961202

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 175454

Country of ref document: AT

Date of ref document: 19990115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990108

REF Corresponds to:

Ref document number: 59407594

Country of ref document: DE

Date of ref document: 19990218

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2127328

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 19990406

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: BAYER AG

Free format text: BAYER AG# #51368 LEVERKUSEN (DE) -TRANSFER TO- BAYER AG# #51368 LEVERKUSEN (DE)

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

Ref country code: NL

Payment date: 20101009

Year of fee payment: 17

Ref country code: FR

Payment date: 20101020

Year of fee payment: 17

Ref country code: AT

Payment date: 20101014

Year of fee payment: 17

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

Ref country code: PT

Payment date: 20101011

Year of fee payment: 17

Ref country code: DE

Payment date: 20101006

Year of fee payment: 17

Ref country code: CH

Payment date: 20101012

Year of fee payment: 17

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

Ref country code: GB

Payment date: 20101006

Year of fee payment: 17

Ref country code: BE

Payment date: 20101020

Year of fee payment: 17

Ref country code: IT

Payment date: 20101016

Year of fee payment: 17

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

Ref country code: ES

Payment date: 20101122

Year of fee payment: 17

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

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

Effective date: 20120410

BERE Be: lapsed

Owner name: *BAYER A.G.

Effective date: 20111031

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20120501

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: 20111010

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20120629

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

Ref country code: NL

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

Effective date: 20120501

Ref country code: DE

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

Effective date: 20120501

Ref country code: CH

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

Effective date: 20111031

Ref country code: LI

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

Effective date: 20111031

Ref country code: BE

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

Effective date: 20111031

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59407594

Country of ref document: DE

Effective date: 20120501

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

Ref country code: PT

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

Effective date: 20120410

Ref country code: FR

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

Effective date: 20111102

Ref country code: GB

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

Effective date: 20111010

Ref country code: IT

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

Effective date: 20111010

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 175454

Country of ref document: AT

Kind code of ref document: T

Effective date: 20111010

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

Ref country code: AT

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

Effective date: 20111010

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130604

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: 20111011