EP1002148B1 - Method and device for making industrial continuous filament yarn by entanglement, and polyester continuous filament - Google Patents

Method and device for making industrial continuous filament yarn by entanglement, and polyester continuous filament Download PDF

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Publication number
EP1002148B1
EP1002148B1 EP98934734A EP98934734A EP1002148B1 EP 1002148 B1 EP1002148 B1 EP 1002148B1 EP 98934734 A EP98934734 A EP 98934734A EP 98934734 A EP98934734 A EP 98934734A EP 1002148 B1 EP1002148 B1 EP 1002148B1
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EP
European Patent Office
Prior art keywords
nozzle
baffle plate
polyester
continuous filament
yarn
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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
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EP98934734A
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German (de)
French (fr)
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EP1002148A1 (en
Inventor
Istvan Csonka
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.)
ExNex AG
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Rhodia Industrial Yarns AG
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/161—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam yarn crimping air jets
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer
    • Y10T428/2969—Polyamide, polyimide or polyester

Definitions

  • the invention relates to a method for producing technical filament yarns by swirling one Polyester multifilaments at elevated temperature, below a thread tension of less than 140 cN, in one air swirling nozzle, consisting from a nozzle body with a perforated plate and one Baffle plate, and a device for carrying out the Process and a technical filament yarn.
  • Multifilament yarns are swirled during the spinning process, to interweave the individual filament fibrils received and to spread threads during further processing to avoid.
  • the intertwining occurs selectively, enables an improved cohesion of the Single filaments in the fibril dressing and a better one Further processability of the yarn.
  • Technical filament yarns made of polyester in particular those whose manufacturing process is characterized by low Winding thread tension of less than 100 cN are marked, in a total titre range of 500 up to 2000 dtex tend to form Deposits in the swirl nozzle.
  • Cold air swirling such as that of EP-A-0 148 402 describes, can be a commercially available, open Swirling nozzle with perforated and baffle plate up to max. 24 hours in operation. Then the Nozzle mechanically and in a complex process can be dry cleaned.
  • the object of the invention is a simplified method to create a better knot distribution and extended nozzle life allowed.
  • Another task is to create a swirling device to provide the energy consumption the process of swirling is reduced.
  • the object is achieved in that the heat on the polyester multifilament and the air over the nozzle body onto one directly with the Baffle plate connected high heat conductive metal block is transmitted directly, in which a hole for the Inclusion of a radiator is provided. It will thereby an improved spreading and node distribution, as well as an enormous energy saving of 85% reached.
  • the swirl nozzle as a cold point in the Spinning process is eliminated.
  • the baffle plate It is advisable to keep the baffle plate at a constant Temperature between 150 and 180 ° C, especially 150 ° to 170 ° C, preferably 160 ° C to heat. A temperature below 150 ° C has the disadvantage of increasing deposits; at a temperature above 180 ° C improve Swirl properties no further.
  • the device for performing the method exists from a swirling nozzle with a nozzle body, one Perforated plate and a baffle plate.
  • the baffle is expediently direct and flush with a highly thermally conductive Metal block, for example made of aluminum connected in which a hole for receiving a Radiator is provided.
  • radiators are electric resistance heaters or any other suitable for space-saving heating. It is essential direct contact between the baffle plate and the Metal block.
  • a manufactured according to the inventive method Polyester filament yarn, with a winding tension less than 140 cN, especially less than 100 cN and with a total titer of 500 - 2000 dtex in addition to a strength of at least 70 cN / tex, at an elongation at break of less than 24%, an increased Knot resistance greater than 80% and one Distance between 2 knots greater than 4.0 cm.
  • the Polyester filament yarn is excellent for Manufacture of coated fabrics for industrial Suitable purposes.
  • Fig. 1 an inventive swirling nozzle in Side view.
  • a nozzle body with the Reference number 1 denotes.
  • the nozzle body 1 is over a perforated plate 2 connected to a baffle plate 3.
  • a compressed air line 4 via a Bracket 5 attached.
  • a gap is provided, the passage for a thread F from a thread guide 6 to one Thread guide 6 'guaranteed.
  • a metal body 8 is provided flush with Mounting screws 9, 9 'is attached to the perforated plate 2.
  • the metal body 8 is with a bore 7 for receiving a radiator provided.
  • the nozzle described in FIG. 1 was pressurized in a known manner via the compressed air line 4 with commercial, cold compressed air of 1.8 bar.
  • a constant temperature level of 160 ° C on the baffle plate 3 could be maintained for 80 hours with the radiator with a heating power of 50W / 50V.
  • Table 1 shows the results achieved in comparison with the known hot air swirling. variant Type of swirl Course of time (h) Swirling (kn / m) Verwirb.
  • the table shows that after a Operating time of 80 hours a swirl of 12.1 Knots / m (target value: 12.0 ⁇ 1.5) with a spread of 0.36 and a turbulence stability of 87.1% achieved become.
  • the swirling nozzle according to the invention was used during 96 Hours with a baffle plate temperature of 160 ° C used.
  • the standard air pressure of 2.8 bar corresponds that of hot air swirling.
  • Table 2 shows the results achieved in comparison with the known hot air swirling.
  • Time h Type of swirl Düs. Temp. ° C Ft cN / tex Dt% ThS% Kn / m number Koh. cm s minute Cm Resistance (%) comparison hot air cold 72.0 22.5 6.5 11.3 7.8 3.2 3.4 86.7 after 2 h hot nozzle 160 71.7 22.6 6.4 10.8 8.3 3.1 3.9 86.8 after 24 h hot nozzle 160 71.9 22.8 6.5 11.6 7.6 3.6 3.8 82.2 after 48 h hot nozzle 160 71.4 22.4 7.0 8.6 11.4 4.5 4.6 84.0 after 72 h hot nozzle 160 71.7 22.7 6.8 10.7 8.4 3.3 4.2 83.5 after 96 h hot nozzle 160 72.1 22.5 6.5 10.5 8.6 3.5 3.7 80.0 Central values hot nozzle 160 71.8 22.6 6.6 10.2 8.8 3.6 4.0 83.3 - Ft: tensile strength in cN / tex - D
  • the hot nozzle swirl brings in comparison with the known hot air swirling with the same nozzle operating time an equally good swirl value, one good knot resistance and a much better one Node distribution.
  • the smallest distance between 2 knots increased by at least about 15% from 3.4 4 cm.
  • the serimetric properties and the Thread cleanliness remained unchanged.
  • the method according to the invention is particularly suitable for the production of high-strength industrial yarn for fabrics for tents, tarpaulins and geotextiles, as a rule be coated.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

The invention concerns a method for making industrial continuous filament yarn by entangling a polyester multifilament yarn at high temperature, under yarn traction force less than 140 cN. By means of a tangling cop tube consisting of a body (1) provided with a perforated plate (2) and a deflection plate (3), heat is directly transmitted to the polyester filament and the air passing through the cop tube body (1) is directly transmitted to a metal block (8) with high thermal conductivity directly connected to the deflection plate (3). In the device for implementing said method, the deflection plate (3) is directly connected to a metal block (8) with high thermal conductivity, wherein a bore (7) is provided for housing a heating element. The polyester continuous filament designed for spinning applications, with a yarn count of 500-2000 dtex, has a resistance of at least 70 cN/tex for a breaking elongation less than 24%, and a knot strength higher than 80% and a spacing between 2 knots more than 4.0 cm.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von technischen Filamentgarnen durch Verwirbeln eines Polyestermultifilaments bei erhöhter Temperatur, unter einer Fadenzugkraft von weniger als 140 cN, in einer mittels Luft beaufschlagten Verwirbelungsdüse, bestehend aus einem Düsenkörper mit einer Lochplatte und einer Prallplatte, sowie eine Vorrichtung zur Durchführung des Verfahrens und ein technisches Filamentgarn.The invention relates to a method for producing technical filament yarns by swirling one Polyester multifilaments at elevated temperature, below a thread tension of less than 140 cN, in one air swirling nozzle, consisting from a nozzle body with a perforated plate and one Baffle plate, and a device for carrying out the Process and a technical filament yarn.

Multifilamentgarne werden beim Spinnprozess verwirbelt, um eine Verflechtung der einzelne Filamentfibrillen zu erhalten und um Fadenspreizungen beim Weiterverarbeiten zu vermeiden. Die Verflechtung geschieht punktuell, ermöglicht ein verbessertes Zusammenhalten der Einzelfilamente im Fibrillenverband und eine bessere Weiterverarbeitbarkeit des Garns.Multifilament yarns are swirled during the spinning process, to interweave the individual filament fibrils received and to spread threads during further processing to avoid. The intertwining occurs selectively, enables an improved cohesion of the Single filaments in the fibril dressing and a better one Further processability of the yarn.

Verfahren zur Verflechtung der Multifilamentgarne sind bekannt, wobei die Knotenbildung in einem Verwirbelungskanal oder zwischen zwei Platten mittels eines Luftstrahles stattfindet (DE-A-195 48 361). Die Knotenzahl kann sowohl über den Druck als auch über die Geschwindigkeit der Verwirbelungsluft gesteuert werden.There are procedures for interlacing multifilament yarns known, the knot formation in one Swirl channel or between two plates by means of an air jet takes place (DE-A-195 48 361). The number of nodes can both pressure and speed the swirling air can be controlled.

Während der Schmelzextrusion der Polymere beim Spinnprozess bilden sich immer Oligomere, die sich von der Oberfläche des Multifilamentgarnes durch das Anblasen an der kalten Prallplatte der Verwirbelungsdüsen ablagern können. Diese harten, oft krustenartigen Ablagerungen können Verstopfungen in den Luftzufuhr und in den Abzugskanälen sowie Fibrillenbeschädigungen verursachen, sowie ungenügende, unstabile und unregelmässig angeordnete Knoten erzeugen.During the melt extrusion of the polymers at Spinning process always form oligomers that differ from by blowing on the surface of the multifilament yarn deposit on the cold baffle plate of the swirl nozzles can. These hard, often crusty deposits can blockages in the air supply and in the Trigger ducts and fibril damage, as well as inadequate, unstable and irregular create arranged nodes.

Technische Filamentgarne aus Polyester, insbesondere solche, die vom Herstellungsverfahren her durch niedrige Aufwickelfadenzugkraft von weniger als 100 cN gekennzeichnet sind, in einem Gesamttiterbereich von 500 bis 2000 dtex neigen besonders stark zur Bildung von Ablagerungen in der Verwirbelungsdüse. Mit der bekannten Kaltluftverwirbelung, wie sie beispielsweise die EP-A-0 148 402 beschreibt, kann eine handelsübliche, offene Verwirbelungsdüse mit Loch- und Prallplatte bis zu max. 24 Stunden in Betrieb gehalten werden. Danach muss die Düse in einem aufwendigen Verfahren mechanisch und chemisch gereinigt werden.Technical filament yarns made of polyester, in particular those whose manufacturing process is characterized by low Winding thread tension of less than 100 cN are marked, in a total titre range of 500 up to 2000 dtex tend to form Deposits in the swirl nozzle. With the known Cold air swirling, such as that of EP-A-0 148 402 describes, can be a commercially available, open Swirling nozzle with perforated and baffle plate up to max. 24 hours in operation. Then the Nozzle mechanically and in a complex process can be dry cleaned.

Um die Düsenstandzeit zu verlängern und eine bessere Knotenbildung, Knotenverteilung und Verwirbelungsstabilität zu erzielen, wurde heisse Verwirbelungsluft für die Herstellung solcher Multifilamentgarne verwendet (EP-A-0 485 871). Bei dieser sogenannten Heissluftverwirbelung wird kalte Druckluft durch einem im Druckluftsystem eingebauten Lufterhitzer bis zu etwa 290°C aufgeheizt. Es wurden Verbesserungen erreicht, die jedoch, insbesondere wegen der unregelmässigen Knotenanordnung sowie des hohen Energieaufwands nicht zufriedenstellend sind. Die Heissluftverwirbelung hat den weiteren Nachteil, dass ein aufwendiges Regelsystem die Wirtschaftlichkeit eines solchen Verfahrens in Frage stellt.To extend the nozzle life and better knot formation, Knot distribution and swirl stability to achieve was hot swirling air for the Production of such multifilament yarns used (EP-A-0 485 871). at this so-called hot air swirl becomes cold Compressed air through one built into the compressed air system Air heater heated up to about 290 ° C. There were Improvements achieved, however, especially because of the irregular knot arrangement as well as the high Energy expenditure are unsatisfactory. The Hot air swirling has the further disadvantage that a elaborate control system the profitability of a question such procedure.

Aufgabe der Erfindung ist es, ein vereinfachtes Verfahren zu schaffen, das eine bessere Knotenverteilung ermöglicht und verlängerte Düsenstandzeit erlaubt.The object of the invention is a simplified method to create a better knot distribution and extended nozzle life allowed.

Eine weitere Aufgabe ist es, eine Verwirbelungsvorrichtung zur Verfügung zu stellen, die den Energieverbrauch des Verfahrens bei der Verwirbelung reduziert.Another task is to create a swirling device to provide the energy consumption the process of swirling is reduced.

Eine noch weitere Aufgabe ist es, ein Industriegarn zur Verfügung zu stellen, das für den Webereieinsatz besser geeignet ist. Als Webereieinsatz sind vor allem Gewebe für Zelte, Planen, Membranbauten, Markisen, Projektionswände und Geotextilien gemeint, die in der Regel eine Beschichtung erfahren.Another task is to use an industrial yarn To make that available for weaving use better suitable is. Above all, fabrics are used for weaving for tents, tarpaulins, membrane structures, awnings, Projection screens and geotextiles meant in the Usually experience a coating.

Die Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Wärme auf das Polyestermultifilament und die Luft über den Düsenkörper auf einen unmittelbar mit der Prallplatte verbundenen hochwärmeleitfähigen Metallblock direkt übertragen wird, in welchem eine Bohrung für die Aufnahme eines Heizkörpers vorgesehen ist. Es wird dadurch eine verbesserte Streuung und Knotenverteilung, sowie eine enorme Einsparung an Energie von 85 % erreicht. Die Verwirbelungsdüse als kalter Punkt im Spinnverfahren wird eliminiert.According to the invention, the object is achieved in that the heat on the polyester multifilament and the air over the nozzle body onto one directly with the Baffle plate connected high heat conductive metal block is transmitted directly, in which a hole for the Inclusion of a radiator is provided. It will thereby an improved spreading and node distribution, as well as an enormous energy saving of 85% reached. The swirl nozzle as a cold point in the Spinning process is eliminated.

Es ist zweckmässig, die Prallplatte auf eine konstante Temperatur zwischen 150 und 180°C, insbesondere 150° bis 170°C, bevorzugt 160°C zu beheizen. Eine Temperatur unter 150°C hat den Nachteil der zunehmenden Ablagerungen; bei einer Temperatur über 180°C verbessern sich die Verwirbelungseigenschaften nicht weiter.It is advisable to keep the baffle plate at a constant Temperature between 150 and 180 ° C, especially 150 ° to 170 ° C, preferably 160 ° C to heat. A temperature below 150 ° C has the disadvantage of increasing deposits; at a temperature above 180 ° C improve Swirl properties no further.

Ein Verwirbelungsdruck zwischen 1,5 bis 3,0 bar, insbesondere 1,8 bzw. 2,8 bar, hat sich als zweckmässig erwiesen. Ein Druck unter 1,5 bar und über 3,0 bar beeinflusst negativ die optimale Knotenbildung. Es entsteht entweder eine zu tiefe oder zu hohe Anzahl von Knoten pro Meter.A swirl pressure between 1.5 and 3.0 bar, in particular 1.8 or 2.8 bar, has proven to be expedient proved. A pressure below 1.5 bar and above 3.0 bar negatively affects the optimal knot formation. It either too low or too high a number of Knots per meter.

Die Vorrichtung zur Durchführung des Verfahrens besteht aus einer Verwirbelungsdüse mit einem Düsenkörper, einer Lochplatte und einer Prallplatte. Die Prallplatte ist zweckmässig direkt und bündig mit einem hochwärmeleitfähigen Metallblock, beispielsweise aus Aluminium verbunden, in welchem eine Bohrung für die Aufnahme eines Heizkörpers vorgesehen ist. Als Heizkörper sind elektrische Widerstandsheizungen oder jede andere raumsparende Beheizung geeignet. Wesentlich ist der direkte Kontakt zwischen der Prallplatte und dem Metallblock. The device for performing the method exists from a swirling nozzle with a nozzle body, one Perforated plate and a baffle plate. The baffle is expediently direct and flush with a highly thermally conductive Metal block, for example made of aluminum connected in which a hole for receiving a Radiator is provided. As radiators are electric resistance heaters or any other suitable for space-saving heating. It is essential direct contact between the baffle plate and the Metal block.

Ein nach dem erfindungsgemässen Verfahren hergestelltes Polyester Filamentgarn, mit einer Aufwickelfadenzugkraft von weniger als 140 cN, insbesondere weniger als 100 cN und mit einem Gesamttiter von 500 - 2000 dtex, weist neben einer Festigkeit von mindestens 70 cN/tex, bei einer Bruchdehnung von weniger als 24 %, eine erhöhte Knotenbeständigkeit von grösser als 80 % und einem Abstand zwischen 2 Knoten von grösser als 4,0 cm auf. Das Polyester Filamentgarn ist in hervorragender Weise zur Herstellung von beschichteten Geweben für industrielle Zwecke geeignet.A manufactured according to the inventive method Polyester filament yarn, with a winding tension less than 140 cN, especially less than 100 cN and with a total titer of 500 - 2000 dtex in addition to a strength of at least 70 cN / tex, at an elongation at break of less than 24%, an increased Knot resistance greater than 80% and one Distance between 2 knots greater than 4.0 cm. The Polyester filament yarn is excellent for Manufacture of coated fabrics for industrial Suitable purposes.

Das erfindungsgemässe Verfahren soll anhand einer Zeichnung erläutert werden. Es zeigen:The method according to the invention is based on a Drawing are explained. Show it:

Fig. 1 eine erfindungsgemässe Verwirbelungsdüse in Seitenansicht.Fig. 1 an inventive swirling nozzle in Side view.

In der einzigen Fig. 1 ist ein Düsenkörper mit dem Bezugszeichen 1 bezeichnet. Der Düsenkörper 1 ist über eine Lochplatte 2 mit einer Prallplatte 3 verbunden. Am Düsenkörper 1 ist eine Druckluftleitung 4 über eine Halterung 5 angebracht. Zwischen der Lochplatte 2 und der Prallplatte 3 ist ein Spalt vorgesehen, der den Durchgang für einen Faden F von einem Fadenführer 6 zu einem Fadenführer 6' gewährleistet. An der Prallplatte 3 ist bündig ein Metallkörper 8 vorgesehen, der mit Montageschrauben 9, 9' an der Lochplatte 2 befestigt ist. Der Metallkörper 8 ist mit einer Bohrung 7 zur Aufnahme eines Heizkörpers vorgesehen. In the only Fig. 1 is a nozzle body with the Reference number 1 denotes. The nozzle body 1 is over a perforated plate 2 connected to a baffle plate 3. At the Nozzle body 1 is a compressed air line 4 via a Bracket 5 attached. Between the perforated plate 2 and the Baffle plate 3, a gap is provided, the passage for a thread F from a thread guide 6 to one Thread guide 6 'guaranteed. At the flapper 3 is a metal body 8 is provided flush with Mounting screws 9, 9 'is attached to the perforated plate 2. The metal body 8 is with a bore 7 for receiving a radiator provided.

Die Funktionsweise der Vorrichtung wird in den Ausführungsbeispielen erläutert.The operation of the device is in the Exemplary embodiments explained.

Ausführungsbeispiele 1Embodiments 1 Titer: dtex 1100f192 ; Aufwickelkraft 60 cNTiter: dtex 1100f192; Winding force 60 cN

Die nach Fig. 1 beschriebene Düse wurde in bekannter Weise über die Druckluftleitung 4 mit handelsüblicher, kalter Druckluft von 1,8 bar beaufschlagt. Während 80 Stunden konnte mit der Heizkörper mit einer Heizleistung von 50W/50V ein konstantes Temperaturniveau von 160 °C an der Prallplatte 3 eingehalten werden. Tabelle 1 zeigt die erreichten Resultate im Vergleich mit der bekannten Heissluftverwirbelung. Variante Art der Verwirbelung Zeitverlauf (h) Verwirbelung (Kn/m) Verwirb. Stabilität (%) Versuch Heissdüse nach 2 h 12,5 1 Heissdüse 24 h 12,0 85,8 2 Heissdüse 48 h 11,5 93,9 3 Heissdüse 72 h 12,1 84,3 4 Heissdüse 80 h 12,2 84,4 Mittelwerte 1-4 Heissdüse nach 80 h 12,1 87,1 Vergleich Heissluft nach 96 h 12,8 78,9 The nozzle described in FIG. 1 was pressurized in a known manner via the compressed air line 4 with commercial, cold compressed air of 1.8 bar. A constant temperature level of 160 ° C on the baffle plate 3 could be maintained for 80 hours with the radiator with a heating power of 50W / 50V. Table 1 shows the results achieved in comparison with the known hot air swirling. variant Type of swirl Course of time (h) Swirling (kn / m) Verwirb. Stability (%) attempt hot nozzle after 2 h 12.5 1 hot nozzle 24 hours 12.0 85.8 2 hot nozzle 48 h 11.5 93.9 3 hot nozzle 72 h 12.1 84.3 4 hot nozzle 80 h 12.2 84.4 Averages 1-4 hot nozzle after 80 h 12.1 87.1 comparison hot air after 96 h 12.8 78.9

In der Tabelle bedeuten:

  • h : Stunden
  • Kn/m : Anzahl Knoten pro 1 m Faden, Mittelwert aus 50 Messwerten pro Wickel, gemessen nach der Nadelstichmethode.
  • Verwirbelungsstabilität = Anzahl Knoten bezogen auf die ursprügliche Anzahl von Knoten pro 1 m Faden, gemessen nach der Nadelstichmethode, bei einer dynamischen Beanspruchung von 0,5 cN/dtex und 1000 Lastwechsel pro Minute.
In the table mean:
  • h: hours
  • Kn / m: Number of knots per 1 m thread, average of 50 measured values per winding, measured according to the needle prick method.
  • Swirl stability = number of knots based on the original number of knots per 1 m of thread, measured according to the needle stitch method, with a dynamic load of 0.5 cN / dtex and 1000 load changes per minute.

Aus der Tabelle ist ersichtlich, dass nach einer Einsatzzeit von 80-Stunden eine Verwirbelung von 12,1 Knoten/m (Sollwert: 12,0 ± 1,5) bei einer Streuung von 0,36 und eine Verwirbelungsstabilität von 87,1 % erreicht werden.The table shows that after a Operating time of 80 hours a swirl of 12.1 Knots / m (target value: 12.0 ± 1.5) with a spread of 0.36 and a turbulence stability of 87.1% achieved become.

Ausführungsbeispiele 2Embodiments 2 Titer: dtex 1100f192, Aufwickelkraft 140 cNTiter: dtex 1100f192, winding force 140 cN

Die erfindungsgemässe Verwirbelungsdüse wurde während 96 Stunden mit einer Prallplattentemperatur von 160°C eingesetzt. Der Standardluftdruck von 2,8 bar entspricht dem der Heissluftverwirbelung.The swirling nozzle according to the invention was used during 96 Hours with a baffle plate temperature of 160 ° C used. The standard air pressure of 2.8 bar corresponds that of hot air swirling.

Tabelle 2 zeigt die erreichten Resultate im Vergleich mit der bekannten Heissluftverwirbelung. Zeit h Art der Verwirbelung Düs. Temp. °C Ft cN/tex Dt % ThS % Kn/m Anz. Koh. cm s min. Abst. cm Beständigkeit (%) Vergleich Heissluft kalt 72.0 22.5 6.5 11.3 7.8 3.2 3.4 86.7 nach 2 h Heissdüse 160 71.7 22.6 6.4 10.8 8.3 3.1 3.9 86.8 nach 24 h Heissdüse 160 71.9 22.8 6.5 11.6 7.6 3.6 3.8 82.2 nach 48 h Heissdüse 160 71.4 22.4 7.0 8.6 11.4 4.5 4.6 84.0 nach 72 h Heissdüse 160 71.7 22.7 6.8 10.7 8.4 3.3 4.2 83.5 nach 96 h Heissdüse 160 72.1 22.5 6.5 10.5 8.6 3.5 3.7 80.0 Mittel-werte Heissdüse 160 71.8 22.6 6.6 10.2 8.8 3.6 4.0 83.3 - Ft : Reissfestigkeit in cN/tex - Dt : Bruchdehnung bei Höchstzugkraft in % - Kn/m : Anzahl Knoten pro 1 m Faden, Mittelwert aus 50 Messwerten pro Wickel, gemessen nach der Nadelstichmethode - koh : Kohärenzlänge, Abstand zwischen zwei Knoten in cm - s : Streuung gibt die Kohärenzlängenstreuung an, - min.Abst.cm : Abstand zwischen 2 Knoten - Verwirbelungsstabilität : Anzahl Knoten bezogen auf die ursprüngliche Anzahl von Knoten pro 1 m Faden, gemessen nach der Nadelstichmethode bei einer dynamischen Beanspruchung von 0,5 cN/tex und 1000 Lastwechsel pro Minute. Table 2 shows the results achieved in comparison with the known hot air swirling. Time h Type of swirl Düs. Temp. ° C Ft cN / tex Dt% ThS% Kn / m number Koh. cm s minute Cm Resistance (%) comparison hot air cold 72.0 22.5 6.5 11.3 7.8 3.2 3.4 86.7 after 2 h hot nozzle 160 71.7 22.6 6.4 10.8 8.3 3.1 3.9 86.8 after 24 h hot nozzle 160 71.9 22.8 6.5 11.6 7.6 3.6 3.8 82.2 after 48 h hot nozzle 160 71.4 22.4 7.0 8.6 11.4 4.5 4.6 84.0 after 72 h hot nozzle 160 71.7 22.7 6.8 10.7 8.4 3.3 4.2 83.5 after 96 h hot nozzle 160 72.1 22.5 6.5 10.5 8.6 3.5 3.7 80.0 Central values hot nozzle 160 71.8 22.6 6.6 10.2 8.8 3.6 4.0 83.3 - Ft: tensile strength in cN / tex - Dt: elongation at break at maximum tensile force in% - Kn / m: number of knots per 1 m thread, average of 50 measured values per winding, measured according to the needle prick method - koh: coherence length, distance between two nodes in cm - s: scatter indicates the coherence length scatter, - Min.Abst.cm: distance between 2 knots - Swirl stability: Number of knots based on the original number of knots per 1 m of thread, measured according to the needle stitch method with a dynamic load of 0.5 cN / tex and 1000 load changes per minute.

Im Vergleich Stand der Technik/Heissdüse wurde eine Verwirbelung von 11,3 bzw. 10,2 Kn/m, eine Kohärenzlänge von 7,8 bzw. 8,8 cm bei einer Streuung von 3,2 bzw. 3,6 und eine Verwirbelungsstabilität von 86,7 bzw. 83,8 erreicht. Die serimetrischen Eigenschaften und die Fadensauberkeit blieben unverändert. Energieverbrauch Heissluftverwirbelung 1,6 kWh Heissdüsenverwirbelung 0,24 kWh Energieeinsparung 1,576 kWh oder etwa 85 % In the comparison of the prior art / hot nozzle, a turbulence of 11.3 or 10.2 Kn / m, a coherence length of 7.8 or 8.8 cm with a scatter of 3.2 or 3.6 and a turbulence stability were found of 86.7 and 83.8 respectively. The serimetric properties and thread cleanliness remained unchanged. power consumption hot-air swirling 1.6 kWh Heissdüsenverwirbelung 0.24 kWh Energy saving 1.576 kWh or about 85%

Die Heissdüsenverwirbelung bringt im Vergleich mit der bekannten Heissluftverwirbelung bei gleicher Düseneinsatzzeit einen gleich guten Verwirbelungswert, eine gute Knotenbeständigkeit und eine wesentlich bessere Knotenverteilung. Der kleinste Abstand zwischen 2 Knoten vergrösserte sich um wenigstens etwa 15 % von 3,4 auf 4 cm. Die serimetrischen Eigenschaften und die Fadensauberkeit blieben unverändert.The hot nozzle swirl brings in comparison with the known hot air swirling with the same nozzle operating time an equally good swirl value, one good knot resistance and a much better one Node distribution. The smallest distance between 2 knots increased by at least about 15% from 3.4 4 cm. The serimetric properties and the Thread cleanliness remained unchanged.

Das erfindungsgemässe Verfahren ist besonders geeignet zur Herstellung von hochfestem Industriegarn für Gewebe für Zelte, Planen und Geotextilien, die in der Regel beschichtet werden.The method according to the invention is particularly suitable for the production of high-strength industrial yarn for fabrics for tents, tarpaulins and geotextiles, as a rule be coated.

Claims (5)

  1. Method for the production of industrial filament yarns by swirling a polyester multifilament at increased temperature, under a thread traction force of less than 140 cN, in an air-loaded swirl nozzle consisting of a nozzle body (1) with a perforated plate (2) and a baffle plate (3), characterized in that the heat is directly transmitted to the polyester multifilament and the air is directly transmitted, via the nozzle body (1), to a highly heat-conductive metal block (8) which is connected directly to the baffle plate (3) and in which a bore (7) is provided for receiving a heating body.
  2. Method according to claim 1, characterized in that the baffle plate (3) is heated to a constant temperature of between 150 and 180°C.
  3. Method according to claim 1, characterized in that the swirl pressure is 1.5 to 3.0 bar.
  4. Apparatus for carrying out the method according to claims 1-3, consisting of a swirl nozzle with a nozzle body (1), a perforated plate (2) and a baffle plate (3), characterized in that the baffle plate (3) is directly connected, flush, to a highly heat-conductive metal block (8), in which a bore (7) is provided for receiving a heating body.
  5. Polyester filament yarn with an overall linear density of 500 - 2000 dtex, a strength of at least 70 cN/tex, along with a breaking elongation of less than 24%, and a knot resistance of greater than 80% characterized by a smallest distance between 2 knots of greater than 4.0 cm.
EP98934734A 1997-08-06 1998-08-04 Method and device for making industrial continuous filament yarn by entanglement, and polyester continuous filament Expired - Lifetime EP1002148B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH185197 1997-08-06
CH185197 1997-08-06
PCT/CH1998/000330 WO1999007930A1 (en) 1997-08-06 1998-08-04 Method and device for making industrial continuous filament yarn by entanglement, and polyester continuous filament

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EP1002148A1 EP1002148A1 (en) 2000-05-24
EP1002148B1 true EP1002148B1 (en) 2002-06-12

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EP (1) EP1002148B1 (en)
JP (1) JP2001512794A (en)
KR (1) KR100469602B1 (en)
CN (1) CN1091179C (en)
AT (1) ATE219174T1 (en)
BR (1) BR9811820A (en)
DE (1) DE59804444D1 (en)
DK (1) DK1002148T3 (en)
ES (1) ES2178236T3 (en)
PT (1) PT1002148E (en)
WO (1) WO1999007930A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT1002148E (en) * 1997-08-06 2002-11-29 Rhodia Industrial Yarns Ag PROCESS AND DEVICE FOR THE PRODUCTION OF INDUSTRIAL FILAMENT YARNS BY MEANS OF POLYESTER MULTI-MULTIPURPOSE TILING TO A HIGH TEMPERATURE AND POLYESTER FILY WIRE
EP1541727A1 (en) * 2003-12-05 2005-06-15 Schärer Schweiter Mettler AG Reduction of the pressure in the texturing nozzle and yarn texturing

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US363291A (en) * 1887-05-17 Dental engine
US3638291A (en) * 1970-10-01 1972-02-01 Du Pont Yarn-treating jet
EP0485871B1 (en) * 1990-11-10 1995-02-15 Barmag Ag Method and apparatus for combining differently colored threads into a multi-colored yarn
DE4323131A1 (en) * 1993-07-10 1995-01-12 Temco Textilmaschkomponent Device for interlacing filaments with a plurality of interlacing nozzles
DE19548361A1 (en) * 1995-02-16 1996-08-22 Rieter Ag Maschf Yarn texturising jet assembly
PT1002148E (en) * 1997-08-06 2002-11-29 Rhodia Industrial Yarns Ag PROCESS AND DEVICE FOR THE PRODUCTION OF INDUSTRIAL FILAMENT YARNS BY MEANS OF POLYESTER MULTI-MULTIPURPOSE TILING TO A HIGH TEMPERATURE AND POLYESTER FILY WIRE
JP3782902B2 (en) * 1999-06-24 2006-06-07 帝人ファイバー株式会社 Method for producing high-strength monofilament with improved surface properties

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ES2178236T3 (en) 2002-12-16
US6465093B2 (en) 2002-10-15
CN1091179C (en) 2002-09-18
DK1002148T3 (en) 2002-10-14
EP1002148A1 (en) 2000-05-24
KR100469602B1 (en) 2005-02-02
JP2001512794A (en) 2001-08-28
PT1002148E (en) 2002-11-29
WO1999007930A1 (en) 1999-02-18
KR20010022589A (en) 2001-03-26
CN1266466A (en) 2000-09-13
BR9811820A (en) 2000-08-15
US6365091B1 (en) 2002-04-02
DE59804444D1 (en) 2002-07-18
US20020101011A1 (en) 2002-08-01
ATE219174T1 (en) 2002-06-15

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