EP1327709B1 - Core yarn - Google Patents

Core yarn Download PDF

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Publication number
EP1327709B1
EP1327709B1 EP02020748A EP02020748A EP1327709B1 EP 1327709 B1 EP1327709 B1 EP 1327709B1 EP 02020748 A EP02020748 A EP 02020748A EP 02020748 A EP02020748 A EP 02020748A EP 1327709 B1 EP1327709 B1 EP 1327709B1
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EP
European Patent Office
Prior art keywords
core
core yarn
yarn according
fibres
fibers
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EP02020748A
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German (de)
French (fr)
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EP1327709A1 (en
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Rolf Schumacher
Mark Ziegele
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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
    • 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
    • D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
    • 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
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides

Definitions

  • the invention relates to a core yarn according to the preamble of claim 1.
  • Such core yarns are produced in different compositions and serve for the production of textiles of all kinds such as Garments or industrial textiles.
  • the core of the coregarn consists of a thin metal wire, which wound by a non-metallic yarn. The soul thus formed is wound with a non-metallic sheath fiber.
  • Another electrically conductive composite yarn is known from EP 0 816 543 A2.
  • This composite yarn has a metallic and a non-metallic Share on.
  • the metallic part consists of a metal thread, the is preferably coated with a lacquer.
  • the non-metallic part exists made of textile fibers. These are in a ring spinning machine to the Composite yarn spun.
  • a disadvantage of such composite yarns is that the metal threads used difficult to process due to their brittleness.
  • the fragility leads and for larger thread diameters, the rigidity of the metal threads to corresponding properties of the fabric produced therefrom and Knitted fabrics, which are extremely undesirable, especially in the case of garments are.
  • the invention is based on the object of a high quality Coregarn this To provide a type which does not have the disadvantages mentioned.
  • the core yarn according to the invention has a braided by sheath fibers Soul up.
  • the soul consists of metal-coated polyamide fibers.
  • the Sheath fibers are made of non-metallic fibers.
  • Coregarn invention has a high Conductivity and is thus suitable for the production of products, in particular Woven and knitted fabrics used to shield electromagnetic Fields or to protect against electrostatic charges.
  • the polyamide fibers of the core of the core yarn according to the invention have a high elasticity.
  • the metallic coating affects the elastic Behavior of the soul not, so that in their totality a high Has elasticity.
  • polyamide fibers are essential Advantage a high adhesion to the metal coating applied thereto on, so that the soul of the invention Coregarns a high mechanical Resilience has.
  • Such Metals used which have the greatest possible ductility.
  • Such ductile metal coatings become the hold of the metal coating further improved on the polyamide fibers of the soul.
  • so-formed soul of the invention Coregarns highly elastic and thereby stretchable, without a detachment of the metal coating or a otherwise impairment of the metal coating would be feared.
  • the soul of the invention Coregarns on a silver coating, for which especially preferably pure-silver is used.
  • the metal coating formed from silver has a particularly high ductility.
  • Another advantage of silver-coated polyamide fibers Souls of the coregarn is that silver has antiseptic properties having.
  • the Coregarne invention thus formed can be advantageous for the manufacture of products in the medical field such as Clothing for allergic persons with skin rashes or the like be used.
  • An essential advantage of the core yarn according to the invention is that the electrically conductive component as part of the soul in the interior of the Coregarns lies and is completely enclosed by the sheath fiber.
  • Sheath fibers predefined the surface properties of the core yarn become. It is advantageous that the sheath fibers, the metal layers completely enclose the soul so that the metal layers have the surface properties of the Coregarns do not affect.
  • Figure 1 shows an embodiment of the invention Coregarns 1.
  • the Coregarn 1 consists of a soul as well as these surrounding sheath fibers 2.
  • the soul is wound by the sheath fibers 2, known for this purpose Spinning processes of all kinds can be used.
  • the core of the core yarn 1 consists of polyamide fibers 3, which are covered with a metal layer 4 are sheathed.
  • the polyamide fibers 3 of the soul may be monofilament or multifilament fibers.
  • the metal layer 4 is preferably homogeneous over the entire surface the polyamide fibers 3 applied.
  • the metal layer 4 on the Polyamide layer are particularly advantageous electrochemical and wet-chemical Method used in the field of electroplating. In a functional Embodiment are thereby first on the polyamide fibers. 3 applied so-called primer. This layer essentially forms an adhesion layer, at which finally metal clusters to form the metal layer 4 are deposited.
  • the deposition can be electrochemical by depositing metal ions from an electrolyte fluid.
  • the thickness of the metal layers 4 on the polyamide fibers 3 is preferably chosen so that the core of the core yarn 1 has a proportion of metal, which is in the range of 10 to 15 percent by weight.
  • metals for the coating of the polyamide fibers 3 can in principle Precious metals and base metals such as gold, copper, tin or Nickel can be used.
  • the metal layer 4 of the soul of the invention Coregarns 1 made of silver, with particularly advantageous pure silver for the coating is used.
  • the thus formed metal-coated and thus electrically conductive soul of Coregarns 1 is sheathed with the non-metallic sheath fibers 2.
  • These Sheath fibers 2 can be chosen freely, in particular the selection the sheath fibers 2 regardless of the material properties of the soul of the Coregarns 1 can be done.
  • the sheath fibers 2 can generally be made of natural fibers, synthetic fibers or mixtures exist of this. Examples of natural fibers are wool, cotton, Pet hair, cashmere or mixtures of such natural fibers.
  • fibers of polyester or acrylic can be used as synthetic fibers become.
  • sheath fibers 2 may also consist of hollow fibers, these especially made of acrylic.
  • An essential advantage of the core yarn 1 according to the invention is that this in addition to high conductivity values also has a high elasticity.
  • the high elasticity is especially due to the use of polyamide fibers 3 received for the soul of Coregarns 1. This elasticity remains obtained the coating with the respective metal. It is particularly advantageous if the metal in question has a high ductility, which in Silver is particularly high.
  • Coregarne 1 according to the invention accordingly have high elongation at break and a high rebound, wherein strains of the core yarn 1 up to 20% are possible.
  • the core yarn 1 also has antiseptic properties on.
  • Coregarn 1 according to the invention can accordingly products which are insensitive to electrostatic charges are and / or which serve to shield electromagnetic fields.
  • the products of woven and knitted fabrics are formed, which as Garments or can be used as industrial products.
  • Products for shielding electromagnetic fields are possible dense mesh core surfaces to provide as closed a shielding surface as possible to receive electromagnetic fields.
  • the cutoff frequency the shieldable frequencies of the electromagnetic fields is essentially given by the size of the gaps between the individual Coregarnen 1.
  • the gaps are then permeable to the electromagnetic waves, if their wavelength is on the order of these gaps or less as these gaps is. Therefore, preferred for such applications Coregarne 1 with thin sheath layers selected to those mentioned To keep gaps as small as possible.
  • Examples of such shielding applications are fabrics which are suitable for the Manufacture of bags or brackets used for cell phones. Due to the electromagnetic shielding effect of the tissue, the persons in front of the electromagnetic radiated from the cell phones Protected waves, which are typically in the microwave range.
  • Coregarne 1 An example of the advantageous antistatic effect of the invention Coregarne 1 is their use for making garments.
  • electrostatic charges which in contact with the garment with each person's appearance is extremely undesirable. This is especially true for high quality garments such as garments Cashmere, which are especially prone to electrostatic charges.
  • the core yarn 1 according to the invention in which the soul a preferably made of silver metal layer 4 and the sheath fiber 2 consists of cashmere, become electrostatic in the garment Charges efficiently prevented without affecting the quality of the garment is thereby affected by the metallic additive. In particular, remains the elastic behavior and the grip of the garment are undisturbed.
  • the core yarns 1 according to the invention can, in addition to their high conductivity also have antiseptic properties, especially if the metal layer 4 of the soul consists of silver or copper.
  • Such silver-coated souls are also advantageous in core yarns 1 used, the sheath fibers 2 formed from acrylic hollow fibers are.
  • Such hollow fibers are used in particular for sweat absorption and are advantageously used in the field of sports and casual wear.
  • fibers are undesirably prone to odor development. These odor evolutions are caused by the metal coated souls of the Coregarns 1 stopped.

Abstract

Core-spun yarn comprises a core of unspun fibers comprising metal coated polyamide fibers, and nonmetallic fibers.

Description

Die Erfindung betrifft ein Coregarn gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a core yarn according to the preamble of claim 1.

Derartige Coregarne werden in unterschiedlichen Zusammensetzungen hergestellt und dienen zur Herstellung von Textilien aller Art wie zum Beispiel Kleidungsstücken oder auch industriell einsetzbaren Textilien.Such core yarns are produced in different compositions and serve for the production of textiles of all kinds such as Garments or industrial textiles.

Insbesondere für den Bereich technischer Textilien sind in neuerer Zeit metallische Coregarne bekannt geworden, welche elektrisch leitend sind. Gewebe und Gestricke, die aus diesen Coregarnen hergestellt werden, weisen in vorteilhafter Weise antistatische Eigenschaften auf.In particular, in the field of technical textiles are metallic in recent times Coregarne become known, which are electrically conductive. Tissue and Knitted fabrics made from these core yarns are more advantageous Show antistatic properties.

Weiterhin können derartige Coregarne auch zur Herstellung von Geweben und dergleichen eingesetzt werden, mittels derer eine Abschirmwirkung gegen elektromagnetische Felder erzielbar ist.Furthermore, such Coregarne also for the production of tissues and be used by means of which a shielding effect against electromagnetic Fields is achievable.

Ein Beispiel für ein derartiges Coregarn ist in der EP 0 250 260 B1 beschrieben. Die Seele des Coregarns besteht aus einem dünnen Metalldraht, welcher von einem nicht metallischen Garn umwunden ist. Die so ausgebildete Seele ist mit einer nicht metallischen Mantelfaser umsponnen.An example of such a core yarn is described in EP 0 250 260 B1. The core of the coregarn consists of a thin metal wire, which wound by a non-metallic yarn. The soul thus formed is wound with a non-metallic sheath fiber.

Ein weiteres elektrisch leitendes Verbundgarn ist aus der EP 0 816 543 A2 bekannt. Dieses Verbundgarn weist einen metallischen und einen nicht metallischen Anteil auf. Der metallische Anteil besteht aus einem Metallfaden, der vorzugsweise mit einem Lack beschichtet ist. Der nicht metallische Anteil besteht aus textilen Fasern. Diese werden in einer Ringspinnmaschine zu dem Verbundgarn versponnen. Another electrically conductive composite yarn is known from EP 0 816 543 A2. This composite yarn has a metallic and a non-metallic Share on. The metallic part consists of a metal thread, the is preferably coated with a lacquer. The non-metallic part exists made of textile fibers. These are in a ring spinning machine to the Composite yarn spun.

Nachteilig bei derartigen Verbundgarnen ist, dass die verwendeten Metallfäden aufgrund ihrer Brüchigkeit schwer zu verarbeiten sind. Zudem führt die Brüchigkeit und bei größeren Fadendurchmessern auch die Steifigkeit der Metallfäden zu entsprechenden Eigenschaften der daraus hergestellten Gewebe und Gestricke, welche insbesondere bei Kleidungsstücken äußerst unerwünscht sind.A disadvantage of such composite yarns is that the metal threads used difficult to process due to their brittleness. In addition, the fragility leads and for larger thread diameters, the rigidity of the metal threads to corresponding properties of the fabric produced therefrom and Knitted fabrics, which are extremely undesirable, especially in the case of garments are.

Weiterhin besteht häufig eine wesentliche Anforderung an derartige Coregarne, dass diese eine hohe Elastizität aufweisen. Auch diese Anforderung kann mit den bekannten Coregarnen nur unzureichend erfüllt werden.Furthermore, there is often an essential requirement for such core yarns, that they have a high elasticity. Also this requirement can with the known Coregarnen be met only inadequate.

Der Erfindung liegt die Aufgabe zugrunde ein hochqualitatives Coregarn dieser Art bereitzustellen, welches die genannten Nachteile nicht aufweist.The invention is based on the object of a high quality Coregarn this To provide a type which does not have the disadvantages mentioned.

Zur Lösung dieser Aufgabe sind die Merkmale des Anspruchs 1 vorgesehen. Vorteilhafte Ausführungsformen und zweckmäßige Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.To solve this problem, the features of claim 1 are provided. Advantageous embodiments and expedient developments of the invention are described in the subclaims.

Das erfindungsgemäße Coregarn weist eine von Mantelfasern umsponnene Seele auf. Die Seele besteht aus metallbeschichteten Polyamidfasern. Die Mantelfasern sind von nicht metallischen Fasern gebildet.The core yarn according to the invention has a braided by sheath fibers Soul up. The soul consists of metal-coated polyamide fibers. The Sheath fibers are made of non-metallic fibers.

Durch die metallische Seele weist das erfindungsgemäße Coregarn eine hohe Leitfähigkeit auf und eignet sich damit zur Herstellung von Produkten, insbesondere Geweben und Gestricken, welche zur Abschirmung von elektromagnetischen Feldern oder zum Schutz gegen elektrostatische Aufladungen dienen.Due to the metallic soul Coregarn invention has a high Conductivity and is thus suitable for the production of products, in particular Woven and knitted fabrics used to shield electromagnetic Fields or to protect against electrostatic charges.

Die Polyamidfasern der Seele des erfindungsgemäßen Coregarns weisen eine hohe Elastizität auf. Die metallische Beschichtung beeinträchtigt das elastische Verhalten der Seele dabei nicht, so dass diese in ihrer Gesamtheit eine hohe Elastizität aufweist. Polyamidfasern weisen dabei zudem als wesentlichen Vorteil eine hohe Haftfähigkeit für die darauf aufgebrachte Metallbeschichtung auf, so dass die Seele des erfindungsgemäßen Coregarns eine hohe mechanische Belastbarkeit aufweist.The polyamide fibers of the core of the core yarn according to the invention have a high elasticity. The metallic coating affects the elastic Behavior of the soul not, so that in their totality a high Has elasticity. Moreover, polyamide fibers are essential Advantage a high adhesion to the metal coating applied thereto on, so that the soul of the invention Coregarns a high mechanical Resilience has.

Besonders vorteilhaft werden für die metallische Beschichtungen dabei derartige Metalle verwendet, welche eine möglichst große Duktilität aufweisen. Durch derartige duktile Metallbeschichtungen wird der Halt der Metallbeschichtung auf den Polyamidfasern der Seele weiter verbessert. Insbesondere ist die so ausgebildete Seele des erfindungsgemäßen Coregarns hoch elastisch und dabei dehnbar, ohne dass ein Ablösen der Metallbeschichtung oder eine anderweitige Beeinträchtigung der Metallbeschichtung zu befürchten wäre.Particularly advantageous for the metallic coatings are such Metals used, which have the greatest possible ductility. Such ductile metal coatings become the hold of the metal coating further improved on the polyamide fibers of the soul. Especially is the so-formed soul of the invention Coregarns highly elastic and thereby stretchable, without a detachment of the metal coating or a otherwise impairment of the metal coating would be feared.

In einer besonders vorteilhaften Ausführungsform weist die Seele des erfindungsgemäßen Coregarns eine Silberbeschichtung auf, für welche besonders bevorzugt Reinst-Silber verwendet wird. Die aus Silber gebildete Metallbeschichtung weist eine besonders große Duktilität auf.In a particularly advantageous embodiment, the soul of the invention Coregarns on a silver coating, for which especially preferably pure-silver is used. The metal coating formed from silver has a particularly high ductility.

Ein weiterer Vorteil der aus silberbeschichteten Polyamidfasern bestehenden Seelen des Coregarns besteht darin, dass Silber antiseptische Eigenschaften aufweist. Die so ausgebildeten erfindungsgemäßen Coregarne können vorteilhaft zur Herstellung von Produkten im medizinischen Bereich wie zum Beispiel Kleidung für allergische Personen mit Hautausschlägen oder dergleichen verwendet werden.Another advantage of silver-coated polyamide fibers Souls of the coregarn is that silver has antiseptic properties having. The Coregarne invention thus formed can be advantageous for the manufacture of products in the medical field such as Clothing for allergic persons with skin rashes or the like be used.

Ein wesentlicher Vorteil des erfindungsgemäßen Coregarns besteht darin, dass die elektrisch leitfähige Komponente als Bestandteil der Seele im Innern des Coregarns liegt und vollständig von der Mantelfaser umschlossen ist.An essential advantage of the core yarn according to the invention is that the electrically conductive component as part of the soul in the interior of the Coregarns lies and is completely enclosed by the sheath fiber.

Dadurch wird zum einen ein Schutz der Metallschicht der Seele durch die außenliegende Mantelfaser erzielt. Insbesondere wird ein Abrieb der Metallschicht auf den Polyamidfasern der Seele vermieden. As a result, on the one hand, a protection of the metal layer of the soul by the outside Sheathed fiber achieved. In particular, abrasion of the metal layer avoided on the polyamide fibers of the soul.

Weiterhin können durch die Auswahl der aus nicht metallischen Fasern bestehenden Mantelfasern die Oberflächeneigenschaften des Coregarns gezielt vorgegeben werden. Dabei ist vorteilhaft, dass die Mantelfasern die Metallschichten der Seele vollständig umschließen, so dass die Metallschichten die Oberflächeneigenschaften des Coregarns nicht beeinflussen.Furthermore, by selecting the non-metallic fibers Sheath fibers predefined the surface properties of the core yarn become. It is advantageous that the sheath fibers, the metal layers completely enclose the soul so that the metal layers have the surface properties of the Coregarns do not affect.

Wesentlich hierbei ist, dass trotz der Schutzwirkung der Mantelfasern diese die Leitfähigkeit und gegebenenfalls auch die antiseptische Wirkung der Seele des Coregarns nicht beeinträchtigen.Essential here is that despite the protective effect of the sheath fibers this the Conductivity and possibly also the antiseptic effect of the soul of Coregarns do not interfere.

Die Erfindung wird im nachstehenden anhand der Zeichnung erläutert. Es zeigt:

Figur 1:
Schematische Darstellung des Aufbaus des erfindungsgemäßen Coregarns.
The invention will be explained below with reference to the drawing. It shows:
FIG. 1:
Schematic representation of the structure of the invention Coregarns.

Figur 1 zeigt ein Ausführungsbeispiel des erfindungsgemäßen Coregarns 1. Das Coregarn 1 besteht aus einer Seele sowie diese umgebenden Mantelfasern 2.Figure 1 shows an embodiment of the invention Coregarns 1. The Coregarn 1 consists of a soul as well as these surrounding sheath fibers 2.

Die Seele ist von den Mantelfasern 2 umsponnen, wobei hierzu bekannte Spinnverfahren aller Art einsetzbar sind.The soul is wound by the sheath fibers 2, known for this purpose Spinning processes of all kinds can be used.

Die Seele des Coregarns 1 besteht aus Polyamidfasern 3, welche mit einer Metallschicht 4 ummantelt sind. Die Polyamidfasern 3 der Seele können als monofile oder multifile Fasern ausgebildet sein.The core of the core yarn 1 consists of polyamide fibers 3, which are covered with a metal layer 4 are sheathed. The polyamide fibers 3 of the soul may be monofilament or multifilament fibers.

Die Metallschicht 4 ist vorzugsweise homogen auf der gesamten Oberfläche der Polyamidfasern 3 aufgebracht. Zur Aufbringung der Metallschicht 4 auf die Polyamidschicht werden besonders vorteilhaft elektrochemische und nasschemische Verfahren im Bereich der Galvanotechnik eingesetzt. In einer zweckmäßigen Ausführungsform werden dabei zunächst auf die Polyamidfasern 3 sogenannte Primer aufgebracht. Diese Schicht bildet im Wesentlichen eine Adhäsionsschicht, an welcher schließlich Metall-Cluster zur Bildung der Metallschicht 4 abgelagert werden. Die Ablagerung kann alternativ auch elektrochemisch durch Abscheiden von Metall-Ionen aus einer Elektrolyt-Flüssigkeit erfolgen.The metal layer 4 is preferably homogeneous over the entire surface the polyamide fibers 3 applied. For applying the metal layer 4 on the Polyamide layer are particularly advantageous electrochemical and wet-chemical Method used in the field of electroplating. In a functional Embodiment are thereby first on the polyamide fibers. 3 applied so-called primer. This layer essentially forms an adhesion layer, at which finally metal clusters to form the metal layer 4 are deposited. Alternatively, the deposition can be electrochemical by depositing metal ions from an electrolyte fluid.

Die Dicke der Metallschichten 4 auf den Polyamidfasern 3 wird vorzugsweise so gewählt, dass die Seele des Coregarns 1 einen Anteil an Metall aufweist, welcher im Bereich von 10 bis 15 Gewichtsprozent liegt.The thickness of the metal layers 4 on the polyamide fibers 3 is preferably chosen so that the core of the core yarn 1 has a proportion of metal, which is in the range of 10 to 15 percent by weight.

Als Metalle für die Beschichtung der Polyamidfasern 3 können prinzipiell Edelmetalle und unedle Metalle wie zum Beispiel Gold, Kupfer, Zinn oder Nickel verwendet werden.As metals for the coating of the polyamide fibers 3 can in principle Precious metals and base metals such as gold, copper, tin or Nickel can be used.

Besonders bevorzugt besteht die Metallschicht 4 der Seele des erfindungsgemäßen Coregarns 1 aus Silber, wobei besonders vorteilhaft Reinst-Silber für die Beschichtung verwendet wird.Particularly preferably, the metal layer 4 of the soul of the invention Coregarns 1 made of silver, with particularly advantageous pure silver for the coating is used.

Die so gebildete metallbeschichtete und damit elektrisch leitende Seele des Coregarns 1 ist mit den nicht metallischen Mantelfasern 2 ummantelt. Diese Mantelfasern 2 können frei gewählt werden, wobei insbesondere die Auswahl der Mantelfasern 2 unabhängig von der Materialbeschaffenheit der Seele des Coregarns 1 erfolgen kann.The thus formed metal-coated and thus electrically conductive soul of Coregarns 1 is sheathed with the non-metallic sheath fibers 2. These Sheath fibers 2 can be chosen freely, in particular the selection the sheath fibers 2 regardless of the material properties of the soul of the Coregarns 1 can be done.

Die Mantelfasern 2 können generell aus Naturfasern, Kunstfasern oder aus Mischungen hiervon bestehen. Beispiele für Naturfasern sind Wolle, Baumwolle, Tierhaare, Cashmere oder Mischungen aus derartigen Naturfasern.The sheath fibers 2 can generally be made of natural fibers, synthetic fibers or mixtures exist of this. Examples of natural fibers are wool, cotton, Pet hair, cashmere or mixtures of such natural fibers.

Als Kunstfasern können insbesondere Fasern aus Polyester oder Acryl verwendet werden.In particular fibers of polyester or acrylic can be used as synthetic fibers become.

Generell können die Mantelfasern 2 auch aus Hohlfasern bestehen, wobei diese insbesondere aus Acryl bestehen. In general, the sheath fibers 2 may also consist of hollow fibers, these especially made of acrylic.

Ein wesentlicher Vorteil des erfindungsgemäßen Coregarns 1 besteht darin, dass dieses neben hohen Leitfähigkeitswerten auch eine hohe Elastizität aufweist. Die hohe Elastizität wird insbesondere durch die Verwendung der Polyamidfasern 3 für die Seele des Coregarns 1 erhalten. Diese Elastizität bleibt bei der Beschichtung mit dem jeweiligen Metall erhalten. Dabei ist besonders vorteilhaft, wenn das betreffende Metall eine hohe Duktilität aufweist, welche bei Silber besonders hoch ist.An essential advantage of the core yarn 1 according to the invention is that this in addition to high conductivity values also has a high elasticity. The high elasticity is especially due to the use of polyamide fibers 3 received for the soul of Coregarns 1. This elasticity remains obtained the coating with the respective metal. It is particularly advantageous if the metal in question has a high ductility, which in Silver is particularly high.

Die erfindungsgemäßen Coregarne 1 weisen dementsprechend hohe Reißdehnungen und einen hohen Rücksprung auf, wobei Dehnungen des Coregarns 1 bis zu 20 % möglich sind.Coregarne 1 according to the invention accordingly have high elongation at break and a high rebound, wherein strains of the core yarn 1 up to 20% are possible.

Für den Fall, dass die Seele des Coregarns 1 eine aus Silber oder Kupfer bestehende Metallschicht 4 aufweist, weist das Coregarn 1 zudem antiseptische Eigenschaften auf.In the event that the soul of Coregarns 1 one made of silver or copper Metal layer 4, the core yarn 1 also has antiseptic properties on.

Während die Ausbildung der Seele des Coregarns 1 die Leitfähigkeit des Coregarns 1 vorgibt und insbesondere auch weitere Eigenschaften wie die antiseptische Wirkung und elastischen Eigenschaften bestimmt, werden durch die Mantelfasern 2 die Oberflächeneigenschaften des Coregarns 1 vorgegeben.While the training of the soul of the Coregarns 1, the conductivity of the Coregarns 1 pretends and in particular also other properties such as the antiseptic Effect and elastic properties are determined by the Sheath fibers 2, the surface properties of the core yarn 1 specified.

Mit dem erfindungsgemäßen Coregarn 1 können dementsprechend Produkte hergestellt werden, welche unempfindlich gegen elektrostatische Aufladungen sind und/oder welche zur Abschirmung von elektromagnetischen Feldern dienen.Coregarn 1 according to the invention can accordingly products which are insensitive to electrostatic charges are and / or which serve to shield electromagnetic fields.

Dabei sind die Produkte von Geweben und Gestricken gebildet, welche als Kleidungsstücke oder auch als Industrieprodukte einsetzbar sind.In this case, the products of woven and knitted fabrics are formed, which as Garments or can be used as industrial products.

Produkte zur Abschirmung elektromagnetischer Felder weisen möglichst dichtmaschige Coregarnflächen auf, um eine möglichst geschlossene Abschirmfläche gegen elektromagnetische Felder zu erhalten. Die Grenzfrequenz der abschirmbaren Frequenzen der elektromagnetischen Felder ist im Wesentlichen durch die Größe der Lücken zwischen den einzelnen Coregarnen 1 gegeben. Die Lücken sind dann für die elektromagnetischen Wellen durchlässig, wenn deren Wellenlänge in der Größenordnung dieser Lücken liegt oder kleiner als diese Lücken ist. Daher werden für derartige Anwendungsfälle bevorzugt Coregarne 1 mit dünnen Mantelfaserschichten gewählt, um diese genannten Lücken möglichst klein zu halten.Products for shielding electromagnetic fields are possible dense mesh core surfaces to provide as closed a shielding surface as possible to receive electromagnetic fields. The cutoff frequency the shieldable frequencies of the electromagnetic fields is essentially given by the size of the gaps between the individual Coregarnen 1. The gaps are then permeable to the electromagnetic waves, if their wavelength is on the order of these gaps or less as these gaps is. Therefore, preferred for such applications Coregarne 1 with thin sheath layers selected to those mentioned To keep gaps as small as possible.

Beispiele für derartige Abschirm-Anwendungen sind Gewebe, welche für die Herstellung von Taschen oder Halterungen für Handys verwendet werden. Durch die elektromagnetische Abschirmwirkung der Gewebe werden die betreffenden Personen vor den von den Handys ausgestrahlten elektromagnetischen Wellen geschützt, die typischerweise im Mikrowellenbereich liegen.Examples of such shielding applications are fabrics which are suitable for the Manufacture of bags or brackets used for cell phones. Due to the electromagnetic shielding effect of the tissue, the persons in front of the electromagnetic radiated from the cell phones Protected waves, which are typically in the microwave range.

Ein Beispiel für die vorteilhafte antistatische Wirkung der erfindungsgemäßen Coregarne 1 ist deren Verwendung zur Herstellung von Kleidungsstücken. Hier sind elektrostatische Aufladungen, welche bei Kontakt des Kleidungsstücks mit der jeweiligen Person auftreten, äußerst unerwünscht. Dies gilt insbesondere bei hochwertigen Kleidungsstücken wie zum Beispiel Kleidungsstücke aus Cashmere, welche besonders zu elektrostatischen Aufladungen neigen. Durch den Einsatz des erfindungsgemäßen Coregarns 1, bei welchen die Seele eine vorzugsweise aus Silber bestehende Metallschicht 4 aufweist und die Mantelfaser 2 aus Cashmere besteht, werden bei dem Kleidungsstück elektrostatische Aufladungen effizient unterbunden, ohne dass die Qualität des Kleidungsstücks durch den metallischen Zusatz hierdurch beeinträchtigt ist. Insbesondere bleibt das elastische Verhalten und der Griff des Kleidungsstückes dabei unbeeinträchtigt.An example of the advantageous antistatic effect of the invention Coregarne 1 is their use for making garments. Here are electrostatic charges, which in contact with the garment with each person's appearance is extremely undesirable. This is especially true for high quality garments such as garments Cashmere, which are especially prone to electrostatic charges. By the use of the core yarn 1 according to the invention, in which the soul a preferably made of silver metal layer 4 and the sheath fiber 2 consists of cashmere, become electrostatic in the garment Charges efficiently prevented without affecting the quality of the garment is thereby affected by the metallic additive. In particular, remains the elastic behavior and the grip of the garment are undisturbed.

Bei derartigen Kleidungsstücken wie zum Beispiel Cashmere-Pullovern reichen bereits dünne Seelenquerschnitte im Vergleich zu den Manteldurchmessern des Coregarns 1 aus, um dennoch einen effizienten Schutz gegen elektrostatische Aufladungen zu erhalten. For such garments as cashmere sweaters suffice already thin core cross sections in comparison to the cladding diameters of the Coregarns 1 to still provide efficient protection against electrostatic To get charges.

Die erfindungsgemäßen Coregarne 1 können zusätzlich zu ihrer hohen Leitfähigkeit auch antiseptische Eigenschaften aufweisen, insbesondere dann, wenn die Metallschicht 4 der Seele aus Silber oder Kupfer besteht.The core yarns 1 according to the invention can, in addition to their high conductivity also have antiseptic properties, especially if the metal layer 4 of the soul consists of silver or copper.

Vorteilhafte Anwendungen derartiger Coregarne 1 sind Gewebe für den medizinischen Bereich. Insbesondere sind damit Kleidungsstücke für Personen mit Allergien oder Hautausschlägen herstellbar.Advantageous applications of such Coregarne 1 are tissues for the medical Area. In particular, so are garments for persons with Allergies or rashes can be produced.

Vorteilhaft werden derartige silberbeschichtete Seelen auch in Coregarnen 1 eingesetzt, deren Mantelfasern 2 von aus Acryl bestehenden Hohlfasern gebildet sind. Derartige Hohlfasern dienen insbesondere zur Schweißaufnahme und werden vorteilhaft im Bereich der Sport- und Freizeitkleidung eingesetzt. Derartige Fasern neigen jedoch in unerwünschter Weise zu Geruchsentwicklungen. Diese Geruchsentwicklungen werden durch die metallbeschichteten Seelen des Coregarns 1 unterbunden. Such silver-coated souls are also advantageous in core yarns 1 used, the sheath fibers 2 formed from acrylic hollow fibers are. Such hollow fibers are used in particular for sweat absorption and are advantageously used in the field of sports and casual wear. such However, fibers are undesirably prone to odor development. These odor evolutions are caused by the metal coated souls of the Coregarns 1 stopped.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

  • (1) Coregarn(1) Coregarn
  • (2) Mantelfasern(2) sheath fibers
  • (3) Polyamidfasern(3) polyamide fibers
  • (4) Metallschicht(4) metal layer

    • Claims (15)

    1. Core yarn with a core covered by casing fibres by spinning, characterised in that the core consists of metal-coated polyamide fibres (3) and that the casing fibres (2) are formed by non-metallic fibres.
    2. Core yarn according to claim 1, characterised in that the core comprises monofilament or multifilament polyamide fibres (3).
    3. Core yarn according to one of claims 1 and 2, characterised in that the metal coating of the core consists of silver.
    4. Core yarn according to claim 3, characterised in that high-purity silver is used for producing the metal coating of the core.
    5. Core yarn according to one of claims 1 and 2, characterised in that the metal coating of the core consists of copper, tin, nickel or gold.
    6. Core yarn according to one of claims 1 to 5, characterised in that the core contains a proportion of metal in the region of 10 to 15 weight percent.
    7. Core yarn according to one of claims 1 to 6, characterised in that the casing fibres (2) consist of natural fibres, synthetic fibres or mixtures thereof.
    8. Core yarn according to claim 7, characterised in that the synthetic fibres consist of polyester, viscose or acryl.
    9. Core yarn according to one of claims 7 and 8, characterised in that synthetic fibres are formed as hollow fibres.
    10. Core yarn according to one of claims 7 to 9, characterised in that the natural fibres consist of wool, animal hairs, cotton or cashmere.
    11. Core yarn according to one of claims 1 to 10, characterised in that this is elastic.
    12. Core yarn according to one of claims 1 to 11, characterised in that this has an antiseptic action.
    13. Use of the core yarn according to one of claims 1 to 10 for producing products for screening electromagnetic fields.
    14. Use of the core yarn according to one of claims 1 to 10 for producing antistatic products.
    15. Use according to claim 13 or 14, characterised in that the products are formed from woven fabrics or knitted fabrics.
    EP02020748A 2002-01-12 2002-09-16 Core yarn Expired - Lifetime EP1327709B1 (en)

    Applications Claiming Priority (2)

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    DE10200965A DE10200965A1 (en) 2002-01-12 2002-01-12 core yarn
    DE10200965 2002-01-12

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    EP1327709A1 EP1327709A1 (en) 2003-07-16
    EP1327709B1 true EP1327709B1 (en) 2005-01-26

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    AT (1) ATE287982T1 (en)
    DE (2) DE10200965A1 (en)

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    DE20311375U1 (en) * 2003-07-24 2003-10-23 Zimmermann Gmbh W Yarns and fabrics for shielding against electromagnetic radiation
    CN102296400B (en) * 2011-08-23 2014-01-29 东华大学 Electromagnetic shielding yarn of metal filament-wrapped elastic filaments and production equipment as well as production method thereof
    CN102312307B (en) * 2011-08-23 2014-04-02 东华大学 Wave-absorbing high-elasticity yarn and production equipment and production method thereof
    ITTO20121045A1 (en) * 2012-12-05 2013-03-06 1922 Manifatture Preziose Torino S P A TEXTILE HEAD OF CLOTHING OR ORNAMENTAL
    CN103757788B (en) * 2013-09-25 2015-12-09 中国人民解放军军事医学科学院放射与辐射医学研究所 For the silver plated fiber shuttle-woven fabric of microwave radiation protection damage
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    EP3502327A1 (en) * 2017-12-22 2019-06-26 Sanko Tekstil Isletmeleri San. Tic. A.S. Composite core yarn, article of clothing comprising a composite core yarn, method for producing a composite core yarn and use of a composite core yarn
    CN110541222B (en) * 2018-05-29 2022-08-26 绍兴逸客丝新材料科技有限公司 Antibacterial elastic covered wire and production method thereof
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    CN108796729A (en) * 2018-08-22 2018-11-13 湖州裕帛纺织有限公司 Antistatic covering yarn
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    Also Published As

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    DE10200965A1 (en) 2003-07-31
    EP1327709A1 (en) 2003-07-16
    DE50202107D1 (en) 2005-03-03
    ATE287982T1 (en) 2005-02-15

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