EP1327709A1 - Core yarn - Google Patents

Core yarn Download PDF

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Publication number
EP1327709A1
EP1327709A1 EP02020748A EP02020748A EP1327709A1 EP 1327709 A1 EP1327709 A1 EP 1327709A1 EP 02020748 A EP02020748 A EP 02020748A EP 02020748 A EP02020748 A EP 02020748A EP 1327709 A1 EP1327709 A1 EP 1327709A1
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EP
European Patent Office
Prior art keywords
core
fibers
core yarn
yarn according
metal
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EP02020748A
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German (de)
French (fr)
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EP1327709B1 (en
Inventor
Rolf Schumacher
Mark Ziegele
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Individual
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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 are used to manufacture textiles of all kinds, such as Garments or industrial textiles.
  • core yarns can also be used for the production of fabrics and The like are used, by means of which a shielding effect against electromagnetic Fields is achievable.
  • the core of the core yarn consists of a thin metal wire, which is wrapped in a non-metallic thread. The soul so trained is covered 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 varnish.
  • the non-metallic part exists from textile fibers. These become the in a ring spinning machine Spun composite yarn.
  • a disadvantage of such composite yarns is that the metal threads used are difficult to process due to their fragility.
  • the fragility leads and with larger thread diameters also the stiffness of the metal threads on the corresponding properties of the fabric made from it and Knitted fabrics, which are extremely undesirable, particularly in the case of clothing are.
  • the invention has for its object a high quality core yarn this Provide type that does not have the disadvantages mentioned.
  • the core yarn according to the invention has a sheathed fiber Soul up.
  • the soul consists of metal-coated polyamide fibers.
  • the Sheath fibers are made of non-metallic fibers.
  • the core yarn according to the invention has a high Conductivity and is therefore suitable for the production of products, in particular Fabrics 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 is not, so that in its entirety it is high Has elasticity.
  • Polyamide fibers are also essential The advantage of high adhesion for the metal coating applied to it so that the core of the core yarn according to the invention has a high mechanical Resilience.
  • the metallic coatings Metals used which have the greatest possible ductility.
  • Such ductile metal coatings hold the metal coating in place further improved on the polyamide fibers of the soul.
  • the core of the core yarn according to the invention thus formed is highly elastic and at the same time stretchable without any detachment of the metal coating or a otherwise the metal coating would be impaired.
  • the soul of the invention Coregarns a silver coating, for which special purest silver is preferably used.
  • the metal coating made of silver has a particularly high ductility.
  • Another advantage of the silver-coated polyamide fibers Souls of the core yarn is that silver has antiseptic properties having.
  • the core yarns of the invention designed in this way can be advantageous for the manufacture of products in the medical field such as Clothes for allergic people with rashes or the like be used.
  • a major advantage of the core yarn according to the invention is that the electrically conductive component as part of the soul inside the Coregarns lies and is completely enclosed by the sheath fiber.
  • Sheath fibers specifically specified the surface properties of the core yarn become. It is advantageous that the sheath fibers cover the metal layers completely enclose the soul, so that the metal layers have the surface properties of the core yarn.
  • Figure 1 shows an embodiment of the core yarn 1 of the invention
  • Core yarn 1 consists of a core and the sheath fibers 2 surrounding it.
  • the core is wrapped in the sheath fibers 2, known for this purpose All kinds of spinning processes can be used.
  • the core of core yarn 1 consists of polyamide fibers 3, which have a metal layer 4 are covered.
  • the polyamide fibers 3 of the soul can be monofilament or multifilament fibers.
  • the metal layer 4 is preferably homogeneous on the entire surface the polyamide fibers 3 applied.
  • To apply the metal layer 4 on the Polyamide layers are particularly advantageous electrochemical and wet chemical Processes used in the field of electroplating. In a convenient Embodiment are first on the polyamide fibers 3rd so-called primers applied. This layer essentially forms an adhesive layer, where finally metal clusters to form the metal layer 4 are deposited. The deposit can alternatively be electrochemical by separating metal ions from an electrolyte liquid.
  • the thickness of the metal layers 4 on the polyamide fibers 3 is preferred chosen so that the core of 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 Precious metals and base metals such as gold, copper, tin or Nickel can be used.
  • the metal layer 4 particularly preferably consists of the core of the invention Core yarns 1 made of silver, with particularly advantageous pure silver for the coating is used.
  • the metal-coated and thus electrically conductive soul of the Core yarns 1 are coated with the non-metallic sheath fibers 2.
  • This 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 Core yarns 1 can be done.
  • the sheath fibers 2 can generally be made from natural fibers, synthetic fibers or from mixtures consist of this. Examples of natural fibers are wool, cotton, Animal hair, cashmere or mixtures of such natural fibers.
  • fibers made of polyester or acrylic can be used as synthetic fibers become.
  • sheath fibers 2 can also consist of hollow fibers, these being consist in particular of acrylic.
  • An essential advantage of core yarn 1 according to the invention is that that, in addition to high conductivity values, it also has high elasticity.
  • the high elasticity is particularly due to the use of polyamide fibers 3 received for the soul of core yarn 1. This elasticity remains receive the coating with the respective metal. It is particularly advantageous if the metal in question has a high ductility, which at Silver is particularly high.
  • the core yarns 1 according to the invention accordingly have high elongations at break and a high rebound, with elongations of the core yarn 1 up to 20% are possible.
  • the core yarn 1 is made of silver or copper Has metal layer 4
  • the core yarn 1 also has antiseptic properties on.
  • the conductivity of core thread 1 specifies and in particular also other properties such as the antiseptic Effect and elastic properties are determined by the Sheath fibers 2 specified the surface properties of the core yarn 1.
  • the products are made of fabrics and knitted fabrics, which as Garments or can also be used as industrial products.
  • Products for shielding electromagnetic fields point as far as possible tightly woven core yarn surfaces to a closed shielding surface as possible against electromagnetic fields.
  • the cutoff frequency the shieldable frequencies of the electromagnetic fields is essentially given by the size of the gaps between the individual core yarns 1.
  • the gaps are then permeable to the electromagnetic waves, if their wavelength is on the order of these gaps or less than this is gaps. Therefore, are preferred for such applications Core yarns 1 with thin layers of sheath fiber are chosen for these To keep gaps as small as possible.
  • Examples of such shielding applications are fabrics which are used for the Manufacture of bags or holders for cell phones to be used. Due to the electromagnetic shielding effect of the tissues affected persons in front of the electromagnetic radiation emitted by the cell phones Waves protected, which are typically in the microwave range.
  • Coregarne 1 An example of the advantageous antistatic effect of the invention Coregarne 1 is their use in the manufacture of garments.
  • electrostatic charges which are in contact with the garment each person occur, extremely undesirable. This is especially true with high-quality items of clothing such as items of clothing Cashmere, which are particularly prone to electrostatic charges.
  • core yarn 1 according to the invention in which the soul one preferably made of silver metal layer 4 and the sheath fiber 2 made of cashmere, are electrostatic with the garment Charges efficiently prevented without affecting the quality of the garment is adversely affected by the metallic additive. In particular remains the elastic behavior and the grip of the garment are unaffected.
  • 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.
  • core yarns 1 of this type are fabrics for medical purposes Area.
  • items of clothing for people with Allergies or rashes can be made.
  • Such silver-coated souls are also advantageous in core yarns 1 used, the sheath fibers 2 formed by hollow fibers made of acrylic are.
  • Such hollow fibers are used in particular to absorb sweat and are used advantageously in the field of sports and casual clothing.
  • fibers have an undesirable tendency to develop odors.

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 are used to manufacture 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.Especially in the field of technical textiles, metallic ones have been used recently Coregarne became known, which are electrically conductive. Tissue and Knitted fabrics that are made from these core yarns have more advantageous Have 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 core yarns can also be used for the production of fabrics and The like are 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 core yarn consists of a thin metal wire, which is wrapped in a non-metallic thread. The soul so trained is covered 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 varnish. The non-metallic part exists from textile fibers. These become the in a ring spinning machine Spun composite yarn.

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 are difficult to process due to their fragility. In addition, the fragility leads and with larger thread diameters also the stiffness of the metal threads on the corresponding properties of the fabric made from it and Knitted fabrics, which are extremely undesirable, particularly in the case of clothing 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 core yarns of this type, that they have a high elasticity. This requirement can also be met with the known core yarns are insufficiently fulfilled.

Der Erfindung liegt die Aufgabe zugrunde ein hochqualitatives Coregarn dieser Art bereitzustellen, welches die genannten Nachteile nicht aufweist.The invention has for its object a high quality core yarn this Provide type that 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.The features of claim 1 are provided to achieve this object. 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 sheathed fiber 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 core, the core yarn according to the invention has a high Conductivity and is therefore suitable for the production of products, in particular Fabrics 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 is not, so that in its entirety it is high Has elasticity. Polyamide fibers are also essential The advantage of high adhesion for the metal coating applied to it so that the core of the core yarn according to the invention has a high mechanical Resilience.

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.Such are particularly advantageous for the metallic coatings Metals used which have the greatest possible ductility. Such ductile metal coatings hold the metal coating in place further improved on the polyamide fibers of the soul. In particular the core of the core yarn according to the invention thus formed is highly elastic and at the same time stretchable without any detachment of the metal coating or a otherwise the metal coating would be impaired.

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 a silver coating, for which special purest silver is preferably used. The metal coating made of 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 the silver-coated polyamide fibers Souls of the core yarn is that silver has antiseptic properties having. The core yarns of the invention designed in this way can be advantageous for the manufacture of products in the medical field such as Clothes for allergic people with 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.A major advantage of the core yarn according to the invention is that the electrically conductive component as part of the soul inside 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. On the one hand, this protects the soul's metal layer from the outside Sheath fiber achieved. In particular, there is 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 choosing the non-metallic fibers Sheath fibers specifically specified the surface properties of the core yarn become. It is advantageous that the sheath fibers cover the metal layers completely enclose the soul, so that the metal layers have the surface properties of the core yarn.

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

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

Figur 1:
Schematische Darstellung des Aufbaus des erfindungsgemäßen Coregarns.
The invention is explained below with reference to the drawing. It shows:
Figure 1:
Schematic representation of the structure of the core yarn according to the invention.

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 core yarn 1 of the invention Core yarn 1 consists of a core and the sheath fibers 2 surrounding it.

Die Seele ist von den Mantelfasern 2 umsponnen, wobei hierzu bekannte Spinnverfahren aller Art einsetzbar sind.The core is wrapped in the sheath fibers 2, known for this purpose All kinds of spinning processes 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 core yarn 1 consists of polyamide fibers 3, which have a metal layer 4 are covered. The polyamide fibers 3 of the soul can 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 on the entire surface the polyamide fibers 3 applied. To apply the metal layer 4 on the Polyamide layers are particularly advantageous electrochemical and wet chemical Processes used in the field of electroplating. In a convenient Embodiment are first on the polyamide fibers 3rd so-called primers applied. This layer essentially forms an adhesive layer, where finally metal clusters to form the metal layer 4 are deposited. The deposit can alternatively be electrochemical by separating metal ions from an electrolyte liquid.

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 preferred chosen so that the core of 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.In principle, as metals for the coating of the polyamide fibers 3 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.The metal layer 4 particularly preferably consists of the core of the invention Core yarns 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 metal-coated and thus electrically conductive soul of the Core yarns 1 are coated with the non-metallic sheath fibers 2. This 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 Core yarns 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 from natural fibers, synthetic fibers or from mixtures consist of this. Examples of natural fibers are wool, cotton, Animal hair, cashmere or mixtures of such natural fibers.

Als Kunstfasern können insbesondere Fasern aus Polyester oder Acryl verwendet werden.In particular, fibers made 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 can also consist of hollow fibers, these being consist in particular 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 core yarn 1 according to the invention is that that, in addition to high conductivity values, it also has high elasticity. The high elasticity is particularly due to the use of polyamide fibers 3 received for the soul of core yarn 1. This elasticity remains receive the coating with the respective metal. It is particularly advantageous if the metal in question has a high ductility, which at 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.The core yarns 1 according to the invention accordingly have high elongations at break and a high rebound, with elongations 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 core of the core yarn 1 is made of silver or copper Has 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.During the formation of the core of core thread 1, the conductivity of core thread 1 specifies and in particular also other properties such as the antiseptic Effect and elastic properties are determined by the Sheath fibers 2 specified the surface properties of the core yarn 1.

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.With the core yarn 1 according to the invention, products can accordingly are produced, 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.The products are made of fabrics and knitted fabrics, which as Garments or can also 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 point as far as possible tightly woven core yarn surfaces to a closed shielding surface as possible against electromagnetic fields. The cutoff frequency the shieldable frequencies of the electromagnetic fields is essentially given by the size of the gaps between the individual core yarns 1. The gaps are then permeable to the electromagnetic waves, if their wavelength is on the order of these gaps or less than this is gaps. Therefore, are preferred for such applications Core yarns 1 with thin layers of sheath fiber are chosen for these 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 used for the Manufacture of bags or holders for cell phones to be used. Due to the electromagnetic shielding effect of the tissues affected persons in front of the electromagnetic radiation emitted by the cell phones Waves protected, 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 in the manufacture of garments. Here are electrostatic charges, which are in contact with the garment each person occur, extremely undesirable. This is especially true with high-quality items of clothing such as items of clothing Cashmere, which are particularly prone to electrostatic charges. By the use of core yarn 1 according to the invention, in which the soul one preferably made of silver metal layer 4 and the sheath fiber 2 made of cashmere, are electrostatic with the garment Charges efficiently prevented without affecting the quality of the garment is adversely affected by the metallic additive. In particular remains the elastic behavior and the grip of the garment are unaffected.

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 items of clothing such as cashmere sweaters are sufficient already thin core cross sections compared to the jacket diameters of the Coregarns 1 out to still provide effective protection against electrostatic 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 core yarns 1 of this type are fabrics for medical purposes Area. In particular, there are items of clothing for people with Allergies or rashes can be made.

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 by hollow fibers made of acrylic are. Such hollow fibers are used in particular to absorb sweat and are used advantageously in the field of sports and casual clothing. such However, fibers have an undesirable tendency to develop odors. These smell developments are caused by the metal-coated souls of the Core yarns 1 prevented.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

(1)(1)
Coregarncore yarn
(2)(2)
Mantelfasernsheath fibers
(3)(3)
Polyamidfasernpolyamide fibers
(4)(4)
Metallschichtmetal layer

Claims (15)

Coregarn mit einer von Mantelfasern umsponnenen Seele, dadurch gekennzeichnet, dass die Seele aus metallbeschichteten Polyamidfasern (3) besteht, und dass die Mantelfasern (2) von nicht metallischen Fasern gebildet sind.Core yarn with a core covered with sheath fibers, characterized in that the core consists of metal-coated polyamide fibers (3) and that the sheath fibers (2) are formed by non-metallic fibers. Coregarn nach Anspruch 1, dadurch gekennzeichnet, dass die Seele monofile oder multifile Polyamidfasern (3) aufweist.Core yarn according to claim 1, characterized in that the core has monofilament or multifilament polyamide fibers (3). Coregarn nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Metallbeschichtung der Seele aus Silber besteht.Core yarn according to one of claims 1 or 2, characterized in that the metal coating of the core consists of silver. Coregarn nach Anspruch 3, dadurch gekennzeichnet, dass zur Herstellung der Metallbeschichtung der Seele Reinst-Silber verwendet wird.Core yarn according to claim 3, characterized in that pure silver is used to produce the metal coating of the core. Coregarn nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Metallbeschichtung der Seele aus Kupfer, Zinn, Nickel oder Gold besteht.Core yarn according to one of claims 1 or 2, characterized in that the metal coating of the core consists of copper, tin, nickel or gold. Coregarn nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, dass die Seele einen Anteil an Metall im Bereich von 10 bis 15 Gewichtsprozent enthält.Core yarn according to one of claims 1-5, characterized in that the core contains a proportion of metal in the range of 10 to 15 percent by weight. Coregarn nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass die Mantelfasern (2) aus Naturfasern, Kunstfasern oder aus Mischungen hiervon bestehen. Core yarn according to one of claims 1-6, characterized in that the sheath fibers (2) consist of natural fibers, synthetic fibers or mixtures thereof. Coregarn nach Anspruch 7, dadurch gekennzeichnet, dass die Kunstfasern aus Polyester, Viskose oder Acryl bestehen.Core yarn according to claim 7, characterized in that the synthetic fibers consist of polyester, viscose or acrylic. Coregarn nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass die Kunstfasern als Hohlfasern ausgebildet sind.Core yarn according to one of claims 7 or 8, characterized in that the synthetic fibers are formed as hollow fibers. Coregarn nach einem der Ansprüche 7 - 9, dadurch gekennzeichnet, dass die Naturfasern aus Wolle, Tierhaaren, Baumwolle oder Cashmere bestehen.Core yarn according to one of claims 7-9, characterized in that the natural fibers consist of wool, animal hair, cotton or cashmere. Coregarn nach einem der Ansprüche 1 - 10, dadurch gekennzeichnet, dass dieses elastisch ist.Core yarn according to one of claims 1-10, characterized in that it is elastic. Coregarn nach einem der Ansprüche 1 - 11, dadurch gekennzeichnet, dass dieses eine antiseptische Wirkung aufweist.Core yarn according to one of claims 1-11, characterized in that it has an antiseptic effect. Verwendung des Coregarns nach einem der Ansprüche 1 - 10 zur Herstellung von Produkten zur Abschirmung elektromagnetischer Felder.Use of the core yarn according to any one of claims 1-10 for manufacture of products for shielding electromagnetic fields. Verwendung des Coregarns nach einem der Ansprüche 1 - 10 zur Herstellung von antistatischen Produkten.Use of the core yarn according to any one of claims 1-10 for manufacture of antistatic products. Verwendung nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass die Produkte von Geweben oder Gestricken gebildet sind.Use according to claim 13 or 14, characterized in that the products are formed from woven or knitted fabrics.
EP02020748A 2002-01-12 2002-09-16 Core yarn Expired - Lifetime EP1327709B1 (en)

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EP1413660A1 (en) * 2002-10-22 2004-04-28 Rolf Schumacher Knitwear
EP1502976A1 (en) * 2003-07-24 2005-02-02 W. Zimmermann GmbH & Co.KG Yarn and fabric for shielding against electromagnetic rays
CN102296400A (en) * 2011-08-23 2011-12-28 东华大学 Electromagnetic shielding yarn of metal filament-wrapped elastic filaments and production equipment as well as production method thereof
CN102312307A (en) * 2011-08-23 2012-01-11 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
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CN110004552A (en) * 2018-07-25 2019-07-12 际华三五四二纺织有限公司 Anti-flaming viscose and the continuous synthetic fibre long filament coated yarn spinning of the blended cladding of aramid fiber and manufacturing process
CN110541222A (en) * 2018-05-29 2019-12-06 绍兴逸客丝新材料科技有限公司 Antibacterial elastic covered wire and production method thereof
CN111297353A (en) * 2018-12-11 2020-06-19 财团法人纺织产业综合研究所 Bicycle trousers
WO2021048211A1 (en) * 2019-09-09 2021-03-18 Chronolife Electrically conductive yarn and wearable article including such yarn
EP4089215A1 (en) * 2017-12-22 2022-11-16 Sanko Tekstil Isletmeleri San. Tic. A.S. Article of clothing comprising a composite core yarn

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Cited By (17)

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Publication number Priority date Publication date Assignee Title
EP1413660A1 (en) * 2002-10-22 2004-04-28 Rolf Schumacher Knitwear
EP1502976A1 (en) * 2003-07-24 2005-02-02 W. Zimmermann GmbH & Co.KG Yarn and fabric for shielding against electromagnetic rays
CN102296400A (en) * 2011-08-23 2011-12-28 东华大学 Electromagnetic shielding yarn of metal filament-wrapped elastic filaments and production equipment as well as production method thereof
CN102312307A (en) * 2011-08-23 2012-01-11 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
CN103757788A (en) * 2013-09-25 2014-04-30 中国人民解放军军事医学科学院放射与辐射医学研究所 Silver-plated fiber woven fabric for preventing microwave radiation damage
WO2018202905A1 (en) * 2017-05-04 2018-11-08 Sanko Tekstil Isletmeleri San. Ve Tic. A.S. Yarns with conductive elastomeric cores, fabrics and garments formed of the same, and methods for producing the same
CN109689953A (en) * 2017-05-04 2019-04-26 尚科纺织企业工业及贸易公司 Yarn with conductive elastomer core, the fabric being made of the yarn and clothing and the method for manufacturing the yarn
JP2020518730A (en) * 2017-05-04 2020-06-25 サンコ テキスタイル イスレットメレリ サン ベ ティク エーエスＳａｎｋｏ Ｔｅｋｓｔｉｌ Ｉｓｌｅｔｍｅｌｅｒｉ Ｓａｎ． Ｖｅ Ｔｉｃ． Ａ．Ｓ． Yarn having a conductive elastic core, fabric and garment formed from the yarn, and method of making the yarn
EP4089215A1 (en) * 2017-12-22 2022-11-16 Sanko Tekstil Isletmeleri San. Tic. A.S. Article of clothing comprising 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
CN110541222A (en) * 2018-05-29 2019-12-06 绍兴逸客丝新材料科技有限公司 Antibacterial elastic covered wire and production method thereof
CN110004552A (en) * 2018-07-25 2019-07-12 际华三五四二纺织有限公司 Anti-flaming viscose and the continuous synthetic fibre long filament coated yarn spinning of the blended cladding of aramid fiber and manufacturing process
CN108796729A (en) * 2018-08-22 2018-11-13 湖州裕帛纺织有限公司 Antistatic covering yarn
CN111297353A (en) * 2018-12-11 2020-06-19 财团法人纺织产业综合研究所 Bicycle trousers
WO2021048211A1 (en) * 2019-09-09 2021-03-18 Chronolife Electrically conductive yarn and wearable article including such yarn

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

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