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DE3301270A1 - Clad fibre or filament material, and process for the production thereof - Google Patents

Clad fibre or filament material, and process for the production thereof

Info

Publication number
DE3301270A1
DE3301270A1 DE19833301270 DE3301270A DE3301270A1 DE 3301270 A1 DE3301270 A1 DE 3301270A1 DE 19833301270 DE19833301270 DE 19833301270 DE 3301270 A DE3301270 A DE 3301270A DE 3301270 A1 DE3301270 A1 DE 3301270A1
Authority
DE
Germany
Prior art keywords
fiber
filament material
filament
material according
tetrafluoroethylene
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.)
Withdrawn
Application number
DE19833301270
Other languages
German (de)
Inventor
Gerhard 8548 Heideck Eichler
Hans 8835 Pleinfeld Michahelles
Günter Dr. 8011 Putzbrunn Wiedner
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.)
WL Gore and Associates GmbH
Original Assignee
WLGore & Co 8011 Putzbrunn GmbH
WL Gore and Associates GmbH
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 WLGore & Co 8011 Putzbrunn GmbH, WL Gore and Associates GmbH filed Critical WLGore & Co 8011 Putzbrunn GmbH
Priority to DE19833301270 priority Critical patent/DE3301270A1/en
Publication of DE3301270A1 publication Critical patent/DE3301270A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/404—Yarns or threads coated with polymeric solutions
    • 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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
    • D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Synthetic or natural fibre or filament material for woven fabrics for industrial uses, for example filters, backing fabrics and conveyor belts, which have a cladding of a fluorine-containing polymer. The clad fibre or filament material simultaneously has high tensile strength and elasticity, is resistant to chemicals and heat, has an antiadhesive action, is lightweight, hydrophobic and resistant to hydrolysis, can be produced in any colour and is inexpensive.

Description

B e s c h r e i b u n gDescription

Ummanteltes Faser- bzw. Filamentmaterial und Verfahren zu seiner Herstellung Die Erfindung betrifft ein synthetisches oder natürliches Faser- bzw. Filamentmaterial gemäß Oberbegriff des Anspruchs 1 und ein Verfahren zu seiner Herstellung.Covered fiber or filament material and process for its manufacture The invention relates to a synthetic or natural fiber or filament material according to the preamble of claim 1 and a method for its production.

Synthetische oder natürliche Faser- bzw. Filamentmaterialien aus Polyamid, Polyester, Polyacrylnitril oder Wolle, Baumwolle haben gute mechanische Eigenschaften wie große Zugfestigkeit, große Elastizität oder niedriges Gewicht. Für bestimmte Anwendungsgebiete, wie z. B. technische Gewebe in Gegenwart von chemisch aggressiven Medien, bei erhöhter Temperatur oder bei speziellen Anforderungen an die Oberflächenbeschaffenheit (z. B. Trennvermögen, geringe Haftreibung) sind jedoch diese bekannten Faser- bzw. Filamentmaterialien, insbesondere wegen ihrer unzureichenden chemischen Eigenschaften, ungeeignet. Andererseits sind Faser- und Filamentmaterialien aus fluorhaltigem Polymer, wie z. B. Polytetrafluoräthylen (PTFE) bekannt, welche chemikalien- und hitzebeständig sind und daher für diese Anwendungsgebiete geeignet wären. Allerdings haben diese PTFE-Materialien einen relativ hohen Pries, ein hohes spezifisches Gewicht und außerdem gegebenenfalls nicht die ausreichenden Zugfestigkeits- und Dehnungseigenschaften.Synthetic or natural fiber or filament materials made of polyamide, Polyester, polyacrylonitrile or wool, cotton have good mechanical properties such as great tensile strength, great elasticity, or low weight. For certain Areas of application, such as B. technical fabrics in the presence of chemically aggressive Media, at elevated temperatures or with special requirements on the surface quality (e.g. separating power, low static friction), however, these known fiber or Filament materials, especially because of their inadequate chemical properties, not suitable. On the other hand, fiber and filament materials made of fluorine-containing polymer, such as B. Polytetrafluoroethylene (PTFE) is known, which is chemical and heat resistant and would therefore be suitable for these areas of application. However, these have PTFE materials have a relatively high price, a high specific weight and moreover may not have adequate tensile strength and elongation properties.

Die Aufgabe der vorliegenden Erfindung besteht daher darin, ein Faser- bzw. Filamentmate.rial zu schaffen, das die guten mechanischen und chemischen Eigenschaften der on genannten Materialien verbindet.The object of the present invention is therefore to provide a fiber or Filamentmate.rial to create the good ones mechanical and chemical properties of the materials mentioned.

Diese Aufgabe wird bei einem Faser- bzw. Filamentmaterial gemäß Oberbegriff des Anspruchs 1 erfindungsgemäß durch eine Ummantelung aus einem fluorhaltigen Polymer, welche insbesondere aus Fluorkunststoff wie Tetrafluoräthylen-Hexafluorpropylen (FEP), perfluoralkoxy-modifiziertem Polytetrafluoräthylen (PFA), Athylen-Tetrafluoräthylen (ETFE), Polyvinylidenfluorid (PVDF) oder Athylcellulose-Tetrafluoräthylen (ECTFE) bestehen kann, gelöst. Hierbei weist das Ummantelungsmaterial einen höheren Schmelzpunkt, insbesondere bis zu 150°C, als das innere Faser- bzw.This task is performed with a fiber or filament material according to the preamble of claim 1 according to the invention by a jacket made of a fluorine-containing polymer, which in particular made of fluoroplastics such as tetrafluoroethylene-hexafluoropropylene (FEP), perfluoroalkoxy-modified polytetrafluoroethylene (PFA), ethylene-tetrafluoroethylene (ETFE), polyvinylidene fluoride (PVDF) or ethylcellulose-tetrafluoroethylene (ECTFE) can exist, solved. The sheathing material has a higher melting point, especially up to 150 ° C, as the inner fiber or

Filamentmaterial auf.Filament material.

Das erfindungsgemäße ummantelte Faser- bzw. Filamentmaterial ist gleichzeitig sehr zugfest und elastisch, chemikalien- und temperaturbeständig, antihaftwirksam, leicht, hydrophob, hydrolysebeständig, in allen Farben herstellbar und kostengünstig.The coated fiber or filament material according to the invention is at the same time very tensile strength and elastic, chemical and temperature resistant, non-stick effect, light, hydrophobic, hydrolysis-resistant, can be produced in all colors and inexpensive.

Das erfindungsgemäße ummantelte Faser- bzw Filamentmaterial wird erfindungsgemäß dadurch hergestellt, daß das Faser- bzw. Filamentmaterial durch eine mittlere Öffnung in einem Extrusionsschlauchwerkzeug mit hoher Geschwindigkeit gezogen wird, das fluorhaltige Polymer in Form eines Schlauches derart extrudiert wird, daß der Schlauch das mittige Faser- bzw. Filamentmaterial ummantelt, und daß das ummantelte Faser- bzw. Filamentmaterial unmittelbar nach dem Austritt aus dem Schlauchwerkzeug rasch abgeschreckt wird. Trotz der kurz zeitigen Hochtemperaturbelastung des inneren Faser- und Filamentmaterials durch das extrudierte Ummantelungsmaterial wird das innere Faser- bzw. Filamentmaterial mit einem niedrigeren Schmelzpunkt nicht zerstört. Dies wird in überraschender Weise durch eine einfache rasche Abschreckung, welche vorzugsweise mit Wasser durchgeführt wird, erzielt.The coated fiber or filament material according to the invention is according to the invention produced in that the fiber or filament material through a central opening is pulled at high speed in an extrusion hose die, the fluorine-containing polymer is extruded in the form of a tube such that the tube the central fiber or filament material coated, and that the coated fiber or filament material quickly after exiting the hose tool is deterred. Despite the brief high temperature load on the inner fiber and filamentary material through the extruded sheath material becomes the interior Fiber or filament material with a lower melting point is not destroyed. This is surprisingly done by a simple quick deterrent which is preferably carried out with water.

Beispiel Es wurde ein Filament aus Polyterephtha3.at (Trevira; Warenzeichen der Firma Hoechst) mit einem Durchmesser von 0,4 bis 0,6 mm durch eine mittlere Öffnung in einem Extrusionsschlauchwerkzeug gezogen. Gleichzeitig wurde mit Hil fe des Schlaucllwerkzeuces ein Schlauch aus Tetrafluoräthylen-Hexafluorpropylen (FEP) mit einer Wandstärke von 0,07 mm derart extrudiert, daß der Schlauch das innere Filament ummantelt. Das Schlauchwerkzeug wies in seinem Kopf eine Temperatur von 450°C und in seinem Trichter, a. h. im Bereich des Austritts des Schlauches eine Temperatur von 3900c auf. Die Abzugsgeschwindigkeit des inneren Filaments und des äußeren Schlauches lag zwischen 40 und 60 m/min. Das ummantelte Material wurde unmittelbar nach Austritt aus dem Schlauchwerkzeug mit Wasser abgeschreckt. Zwischen dem inneren Filament und der äußeren Ummantelung bestand keinerlei chemische bzw.Example A filament made from Polyterephtha3.at (Trevira; trademark from Hoechst) with a diameter of 0.4 to 0.6 mm through a middle one Opening drawn in an extrusion hose tool. Simultaneously with Hil fe des Schlaucllwerkzeuces a hose made of tetrafluoroethylene-hexafluoropropylene (FEP) with a wall thickness of 0.07 mm extruded so that the tube is the inner Filament coated. The hose tool had a temperature in his head of 450 ° C and in its funnel, a. H. in the area of the exit of the hose Temperature of 3900c. The withdrawal speed of the inner filament and the outer hose was between 40 and 60 m / min. The coated material was immediately Quenched with water after exiting the hose tool. Between the inner Filament and the outer sheath did not contain any chemical or

engere mechanische Verbindung.closer mechanical connection.

In der einzigen Figur ist schematisch in vergrößertem Querschnitt ein solches erfindungsgemäßes ummanteltes Filament mit einem inneren Filament 1 und einer äußeren Ummantelung 2 dargestellt.In the single figure is schematically in an enlarged cross-section such a covered filament according to the invention with an inner filament 1 and an outer sheath 2 is shown.

- Leerseite -- blank page -

Claims (5)

Patentansprüche 1. Synthetisches oder natürliches Faser- bzw. Filamentmaterial, insbesondere aus Polyamid, Polyester, Polyacrylnitril oder Wolle, Baumwolle, für Gewebe für industrielle Zwecke wie z. B. Filter, Trägergewebe, Transportbänder, g e k e n nz e i c h n e t d u r c h eine Ummantelung aus einem fluorhaltigen Polymer. Claims 1. Synthetic or natural fiber or filament material, in particular made of polyamide, polyester, polyacrylonitrile or wool, cotton, for Fabrics for industrial purposes such as B. Filters, carrier fabric, conveyor belts, Not the same as a sheathing made from a fluorine-containing polymer. 2. Material nach Anspruch 1, dadurch gekennzeichnet, daß die Ummantelung aus Fluorkunststoff wie Tetrafluoräthylen-Hexafluorpropylen (FEP), perfluoralkoxy-modifiziertem Polytetrafluoräthylen (PFA), Äthylen-Tetrafluoräthylen (ETFE), polyvinylidenfluorid (PVDF) oder Äthylcellulose-Tetrafluoräthylen (ECTFE) besteht.2. Material according to claim 1, characterized in that the sheathing made of fluoroplastic such as tetrafluoroethylene-hexafluoropropylene (FEP), perfluoroalkoxy-modified Polytetrafluoroethylene (PFA), ethylene tetrafluoroethylene (ETFE), polyvinylidene fluoride (PVDF) or ethyl cellulose tetrafluoroethylene (ECTFE). 3. Material nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Schmelzpunkt des Faser- bzw. Filamentmaterials kleiner als der Schmelzpunkt des Ummantelungsmaterials ist.3. Material according to claim 1 or 2, characterized in that the The melting point of the fiber or filament material is lower than the melting point of the Sheathing material is. 4. Material nach Anspruch 3, dadurch gekennzeichnet, daß der Schmelzpunktunterschied bis zu 1500C beträgt.4. Material according to claim 3, characterized in that the melting point difference up to 1500C. 5. Verfahren zur Herstellung eines Materials nach mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Faser- bzw. Filamentmaterial durch eine mittlere Öffnung in einem Extrusionsschlauchwerkzeug mit hoher Geschwindigkeit gezogen wird, das fluorhaltige Polymer in Form eines Schlauches derart extrudiert wird, daß der Schlauch das mittige Faser- bzw. Filamentmaterial ummantelt, und daß das ummantelte Faser- bzw. Filamentmaterial unmittelbar nach dem Austritt aus dem Schlauchwerkzeug rasch abgeschreckt wird.5. A method for producing a material according to at least one of claims 1 to 4, characterized in that the fiber resp. Filament material through a central opening in an extrusion hose tool is pulled at high speed, the fluorine-containing polymer in the form of a tube is extruded in such a way that the tube has the central fiber or filament material coated, and that the coated fiber or filament material immediately after the exit from the hose tool is quickly quenched.
DE19833301270 1983-01-17 1983-01-17 Clad fibre or filament material, and process for the production thereof Withdrawn DE3301270A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833301270 DE3301270A1 (en) 1983-01-17 1983-01-17 Clad fibre or filament material, and process for the production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833301270 DE3301270A1 (en) 1983-01-17 1983-01-17 Clad fibre or filament material, and process for the production thereof

Publications (1)

Publication Number Publication Date
DE3301270A1 true DE3301270A1 (en) 1984-07-19

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DE19833301270 Withdrawn DE3301270A1 (en) 1983-01-17 1983-01-17 Clad fibre or filament material, and process for the production thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472780A (en) * 1992-09-01 1995-12-05 Rhone-Poulenc Viscosuisse Sa Soil-repellent monofilament for paper machine wire-cloths, production thereof and use thereof
DE29807472U1 (en) 1998-04-24 1998-07-23 Recytex-Textilaufbereitung GmbH & Co. KG, 41751 Viersen Fancy yarn
WO2003066944A1 (en) * 2002-02-08 2003-08-14 Tissage Et Enduction Serge Ferrari Sa Sheathed yarn, textile and the method of producing one such yarn
US7267843B2 (en) 2002-08-26 2007-09-11 Bernhard Jahn Textile fabric and yarn composed of synthetic fibers, preparation thereof and use thereof
WO2007131252A1 (en) * 2006-05-15 2007-11-22 Lenzing Plastics Gmbh Chemically-resistant and shape-retaining monofilaments a method for production and use thereof
CN106223030A (en) * 2016-08-26 2016-12-14 安徽元琛环保科技股份有限公司 A kind of filtrate dressing liquid, compound method and application improving filtering accuracy

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6900951U (en) * 1969-01-11 1969-05-29 Berkenhoff & Drebes Ag THREAD WITH PLASTIC COVER
DE1959574A1 (en) * 1969-11-27 1971-06-03 Berkenhoff & Drebes Ag Thread and screen fabric made from the thread
DE7321038U (en) * 1973-09-06 Farbwerke Hoechst Ag Dirt-repellent screen and filter fabric

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7321038U (en) * 1973-09-06 Farbwerke Hoechst Ag Dirt-repellent screen and filter fabric
DE6900951U (en) * 1969-01-11 1969-05-29 Berkenhoff & Drebes Ag THREAD WITH PLASTIC COVER
DE1959574A1 (en) * 1969-11-27 1971-06-03 Berkenhoff & Drebes Ag Thread and screen fabric made from the thread

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US-Z: Modern Textiles Magazine, Sept. 1963, S. 46-52 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472780A (en) * 1992-09-01 1995-12-05 Rhone-Poulenc Viscosuisse Sa Soil-repellent monofilament for paper machine wire-cloths, production thereof and use thereof
US5514472A (en) * 1992-09-01 1996-05-07 Rhone-Poulenc Viscosuisse S.A. Soil-repellent monofilament for paper machine wire-cloths, production thereof and use thereof
DE29807472U1 (en) 1998-04-24 1998-07-23 Recytex-Textilaufbereitung GmbH & Co. KG, 41751 Viersen Fancy yarn
WO2003066944A1 (en) * 2002-02-08 2003-08-14 Tissage Et Enduction Serge Ferrari Sa Sheathed yarn, textile and the method of producing one such yarn
FR2835852A1 (en) * 2002-02-08 2003-08-15 Ferrari S Tissage & Enduct Sa SHEATHED YARN, TEXTILE AND METHOD FOR MANUFACTURING SUCH A YARN
US7134266B2 (en) 2002-02-08 2006-11-14 Tissage Et Enduction Serge Ferrari Sa Jacketed yarn, textile and method of producing such a yarn
US7267843B2 (en) 2002-08-26 2007-09-11 Bernhard Jahn Textile fabric and yarn composed of synthetic fibers, preparation thereof and use thereof
WO2007131252A1 (en) * 2006-05-15 2007-11-22 Lenzing Plastics Gmbh Chemically-resistant and shape-retaining monofilaments a method for production and use thereof
CN101443495B (en) * 2006-05-15 2012-06-20 连津格塑料有限责任公司 Chemically resistant and dimensionally stable monofilament, process for its preparation and use thereof
CN106223030A (en) * 2016-08-26 2016-12-14 安徽元琛环保科技股份有限公司 A kind of filtrate dressing liquid, compound method and application improving filtering accuracy

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8127 New person/name/address of the applicant

Owner name: W.L. GORE & ASSOCIATES GMBH, 8011 PUTZBRUNN, DE

8130 Withdrawal