EP1860218B1 - Spacer fabric with tear strips - Google Patents

Spacer fabric with tear strips Download PDF

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Publication number
EP1860218B1
EP1860218B1 EP07009785A EP07009785A EP1860218B1 EP 1860218 B1 EP1860218 B1 EP 1860218B1 EP 07009785 A EP07009785 A EP 07009785A EP 07009785 A EP07009785 A EP 07009785A EP 1860218 B1 EP1860218 B1 EP 1860218B1
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EP
European Patent Office
Prior art keywords
spacer
tear strength
threads
fabric
fabric layers
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EP07009785A
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German (de)
French (fr)
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EP1860218A1 (en
Inventor
Frank Müller
Stefan Müller
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Mueller Textil GmbH
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Mueller Textil GmbH
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Publication of EP1860218A1 publication Critical patent/EP1860218A1/en
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/20—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting articles of particular configuration
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
    • D04B27/34—Take-up or draw-off devices for knitted products
    • 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
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/01—Surface features
    • D10B2403/011—Dissimilar front and back faces
    • D10B2403/0112—One smooth surface, e.g. laminated or coated
    • 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
    • D10B2505/00—Industrial
    • D10B2505/08—Upholstery, mattresses

Definitions

  • the invention relates to a spacer fabric consisting of two mutually parallel fabric layers, which are interconnected by running between the two fabric layers back and forth spacer threads, wherein the fabric layers generally running in the direction of production stitches and thus forfeited weft threads and the spacer threads generally run in the direction of production and with the knitted fabric layers are forfeited.
  • the invention further comprises a cover material having a cover layer and a lining of a spacer fabric consisting of two mutually parallel fabric layers which are interconnected by spacer threads running back and forth between the two fabric layers, the fabric layers generally being stitched in the direction of production and thus tangled Weft threads and the spacer threads generally run in the direction of production and are forfeited with the fabric layers.
  • they can also move back and forth transversely relative to the direction of production in the knitted fabric layers, with a structure of crossed spacer threads being considered in the direction of production. This is called X-laying.
  • spacer threads it is also possible for spacer threads to form substantially linearly arranged connections with the latter during the back and forth between the knitted layers, with a structure of mutually parallel spacer threads extending at right angles to the knitted layers being considered in the direction of production. This is called I-Legung.
  • Spacer knits of the type mentioned are produced to a large extent from thermoplastic synthetic threads, the two knitted layers mostly consisting of multifilaments and the spacer threads mostly consisting of monofilaments.
  • the knitted fabrics are produced in a width determined by the production width of the machine used or by the intended use as continuous web material. For assembly, the material is separated with circular knives or by punching. In this case, the unavailable edge region is thermally separated, in particular, before the web material rolls up. Irrespective of the type of thread of the thermoplastic synthetic threads mentioned here, however, the invention also extends unrestrictedly to spacer knitted fabrics made of thermally stable threads.
  • cover fabrics of the type mentioned above which are lined with spacer knitted fabric, are widely used in the automotive sector as upholstery fabrics for vehicle seats, but in particular also as upholstery fabrics for dashboards and other interior trim panels.
  • the cover material of this type is made by laminating web material made of homogeneous material such as leather or plastic on the web material of the spacer knitted fabric, so that the starting material is initially present as a web material. For the intended shape or the intended cut corresponding blank pieces are punched out of the web material with punching blades or cut with lasers.
  • the present invention has for its object to provide products of the type mentioned, which allow a simplified separation of the material along predetermined separation points, the material should also be usable before separation.
  • the solution to this consists in a spacer fabric or a covering material of a cover layer and a lining made of a spacer fabric consisting of two parallel knitted fabric layers, which are connected to each other by spacer threads running back and forth between the two fabric layers, wherein the fabric layers generally mesh in the direction of production and thus entangled weft threads and the spacer threads generally run in the direction of production and are forfeited with the knitted layers, wherein in at least one of the knitted layers at least one weft thread of lower tear strength for producing a substantially linear running in the direction of production target separation point T is incorporated and wherein in the region of at least a weft thread of lesser tear strength, an omission of at least one spacer thread for additional weakening of the predetermined separation point is provided and wherein longitudinally adjacent to the outlet ng of the at least one spacer thread at least one additional spacer thread is incorporated in one of the first-mentioned spacer threads deviating, a higher density of compounds with the fabric layers having
  • At least one weft thread of lesser tear strength is incorporated in both fabric layers in mutually coincident congruent position transversely to the production direction in order to produce the desired separation line.
  • the first-mentioned spacer threads move back and forth in the direction of production P in each of the knitted layers (X-laying) and that the at least one additional spacing thread in the production direction P forms in each case substantially linearly arranged connections in the knitted layers (I-laying).
  • connection points (mesh heads)
  • connection points (mesh heads)
  • the at least one additional spacer thread or the two additional spacer threads each require an additional guide rail during manufacture in order to represent the deviating method of laying in relation to the other first-mentioned spacer threads.
  • thin monofilaments e.g. of polyester having a thickness of less than 50dTex, in particular less than 30dTex
  • multifilaments e.g. should also be made of polyester with a thickness of more than 45dTex, especially more than 70dTex should be used.
  • spacer knitted fabrics which are to be used in mattresses or as sleeping mats.
  • spacer knitted fabrics have relatively large thickness and for displaying increased restoring forces under pressure load relatively stable monofilaments as spacer threads. If these spacer threads are separated thermally or mechanically, fragments with free thread ends which can stick out of the spacer knitted fabric and lead to loss of comfort in the final use arise. This generation of fragments of spacer threads is avoided with the present invention.
  • provision may be made for using a knitting machine set to a maximum production width, although only knitted material of the width of a portion of the production width is required.
  • two or more strips of material initially connected to one another in the direction of production can be produced, which are subsequently separated from one another by mechanical forces.
  • shear forces can be used by the individual strips of material are guided to different heights and wound on waves with different axis position.
  • a third application is to produce in the web material a predetermined separation point, which is used only in the application of the blanks produced from the sheet material, in particular in an overloading of the spacer knitted fabric, in which the type of failure or separation should be controlled.
  • a cover material according to the invention may serve, similar to the above-mentioned destinations, to separate off edges which are made unusable by the cover material during production
  • the intended purpose may be that when using large machine widths, a plurality of material strips of the cover material to be subsequently separated are produced, which comprise only half or a different fraction of the available production width.
  • a third and essential use is to provide cover material which is destroyed or torn under control during overloading in use at a predetermined controlled separation point.
  • Such an application may be in particular in the use of the reference material as cover fabric for a dashboard of a motor vehicle, under which a so-called airbag is installed to secure the passenger, or are in use as steering wheel cover of the steering wheel of a motor vehicle, in the steering wheel plate or flapper an airbag is installed.
  • a so-called airbag is installed to secure the passenger
  • a so-called airbag is installed to secure the passenger
  • the steering wheel plate or flapper an airbag is installed.
  • In explosive release of the built-under this fabric cover airbag whose function should not be hindered and the fabric, which does not recognize a separation point from the outside, should be easily breakable along a predetermined separation point.
  • FIG. 1 a rectangular section of a spacer fabric 11 according to the invention is shown, in which the boundary edges shown are only to be understood systematically, since a knitted fabric consists of non-rectilinear stitches and weft threads in the fabric layers and spacer threads between the fabric layers.
  • each of the pile threads 14 back and forth transversely to the production direction, which is indicated by the cross structure of the lines.
  • the designation for this type of laying is X-laying.
  • the weft threads 15, 16 comprise first weft threads of greater tear strength, which are symbolized by stronger lines, and in a separation area of the width T second weft threads 15 ', 16' of lower tear strength, which are symbolized by weaker lines.
  • weft threads 15 of the upper knitted fabric 12 and 16 of the lower knitted fabric 13 is in the separation region of the width T an omission of the spacer threads 14 on both sides of the separation region of the width T, however, additional spacer threads 24, 25 are provided, which are also in the essentially in the direction of production P and thereby move back and forth between the fabric layers 12, 13, without thereby transversely to the production direction back and forth, without transversely to the production direction back and forth to offset, which is perpendicular to the fabric layers 12, 13th drawn lines is indicated.
  • This type of laying is called I-laying.
  • the Weft threads 15 ', 16' lower tear strength can be marked by a deviating from the weft threads tear strength color.
  • the different tensile strength of the weft threads can be represented by different thread thickness or number of filaments or at the same thread thicknesses by a different quality. It will be understood that when loaded perpendicular to the direction of production or under shear stress perpendicular to the plane of the fabric layers 12, 13, the spacer fabric 11 will fail along the separation point of the width T, tearing at least one weft yarn 15 ', 16' of lower tear strength becomes. This is the purpose of the subject of the invention.
  • FIG. 2 is a cover material 21 made of a spacer knitted fabric FIG. 1 shown using the same reference numerals, on which a cover layer 17 of substantially homogeneous material quality is laminated.
  • the adhesive material used here is not shown in detail.
  • the production direction is again indicated by an arrow P.
  • the laminated cover layer 17 covers the upper knitted fabric layer 12; from the lower fabric layer 13, the stitches 23 and also weft threads 16 'of lower tear strength are shown in the region of the width T. Side of it weft yarns 16 greater tear strength are indicated.
  • the structure of the upper knitted fabric layer 12 should be completely in FIG. 1 represented correspond.
  • the cover layer 17 has an internal longitudinal score 18 which extends over the front half of the material portion and which comprises only a portion of the thickness D of the cover layer 17. The outer side of the cover material can not recognize this scribe extent. In the rear half of the material section, the cover layer 17 has a perforation line 19, which extends through the entire thickness D of the cover layer 17 and to this extent can be seen from the outside on the cover material. It is understood that the spacer fabric 11 is destroyed with the top layer 17 laminated with tensile stress in the material plane perpendicular to the production direction P or under shear forces perpendicular to the plane of the fabric layers 12, 13 in the region of the separation point of the width T, wherein the cover layer 17 along the score 18 or the perforation 19 will tear apart. This is the purpose of the subject invention.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Of Fabric (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Woven Fabrics (AREA)
  • Laminated Bodies (AREA)

Abstract

The spacer fabric for relining on covering material for vehicle seat, instrument panels and vehicle interior covering, has two fabric layers (12, 13) lying parallelly to each other, and isolating thread (14) arranged between the fabric layers having stitches with weft threads (15, 16). The isolating threads upwardly and downwardly run in production direction and are forfeited with the fabric layers. The weft thread with slighter tear strength is incorporated in the fabric layers in a position coincidentally among one another for the production of desired linear separation point. The spacer fabric for relining on covering material for vehicle seat, instrument panels and vehicle interior covering, has two fabric layers (12, 13) lying parallelly to each other, and isolating thread (14) arranged between the fabric layers having stitches with weft threads (15, 16). The isolating threads upwardly and downwardly run in production direction and are forfeited with the fabric layers. The weft thread with slighter tear strength is incorporated in the fabric layers in a position coincidentally among one another for the production of desired linear separation point. The isolating thread is arranged in the area of a weft thread with slighter tear strength for additional debilitation of the linear separation point. The weft thread of larger tear strength directly adjoined to the weft thread of slighter tear strength is marked through a color deviated from the remaining weft thread. The weft threads of slighter tear strength and of larger tear strength are formed by a monofilament with a thickness of 30 dTex and 70 dTex respectively. The separation points are intended in same interval from one another to produce single stripe of defined width from the spacer fabric running in production direction. An independent claim is included for a covering material.

Description

Die Erfindung betrifft ein Abstandsgewirke bestehend aus zwei parallel zueinander liegenden Gewirkelagen, die durch zwischen den beiden Gewirkelagen hin und her verlaufende Abstandsfäden miteinander verbunden sind, wobei die Gewirkelagen allgemein in Produktionsrichtung verlaufende Maschen und damit verwirkte Schußfäden aufweisen und die Abstandsfäden allgemein in Produktionsrichtung verlaufen und mit den Gewirkelagen verwirkt sind. Die Erfindung umfaßt weiterhin ein Bezugsmaterial mit einer Deckschicht und einer Unterfütterung aus einem Abstandsgewirke, bestehend aus zwei parallel zueinander liegenden Gewirkelagen, die durch zwischen den beiden Gewirkelagen hin und her verlaufende Abstandsfäden miteinander verbunden sind, wobei die Gewirkelagen allgemein in Produktionsrichtung verlaufende Maschen und damit verwirkte Schußfäden aufweisen und die Abstandsfäden allgemein in Produktionsrichtung verlaufen und mit den Gewirkelagen verwirkt sind.The invention relates to a spacer fabric consisting of two mutually parallel fabric layers, which are interconnected by running between the two fabric layers back and forth spacer threads, wherein the fabric layers generally running in the direction of production stitches and thus forfeited weft threads and the spacer threads generally run in the direction of production and with the knitted fabric layers are forfeited. The invention further comprises a cover material having a cover layer and a lining of a spacer fabric consisting of two mutually parallel fabric layers which are interconnected by spacer threads running back and forth between the two fabric layers, the fabric layers generally being stitched in the direction of production and thus tangled Weft threads and the spacer threads generally run in the direction of production and are forfeited with the fabric layers.

Die allgemein in Produktionsrichtung verlaufenden Abstandsfäden bilden mit den Gewirkelagen jeweils Verbindungen, die auch als Maschenköpfe bezeichnet werden. Beim Hin- und Herverlaufen der einzelnen Abstandsfäden zwischen den Gewirkelagen können sie zugleich relativ zur Produktionsrichtung in den Gewirkelagen quer hin- und herversetzen, wobei sich in Produktionsrichtung betrachtet eine Struktur sich überkreuzender Abstandsfäden ergibt. Dies wird als X-Legung bezeichnet. Alternativ ist es auch möglich, daß Abstandsfäden beim Hin- und Herlaufenen zwischen den Gewirkelagen im wesentlichen linear angeordnete Verbindungen mit letzteren bilden, wobei sich in Produktionsrichtung betrachtet eine Struktur zueinander paralleler rechtwinklig zu den Gewirkelagen verlaufender Abstandsfäden ergibt. Dies wird als I-Legung bezeichnet.The spacer threads running generally in the direction of production form, with the knitted fabric layers in each case, connections which are also referred to as mesh heads. When moving back and forth of the individual spacer threads between the fabric layers, they can also move back and forth transversely relative to the direction of production in the knitted fabric layers, with a structure of crossed spacer threads being considered in the direction of production. This is called X-laying. Alternatively, it is also possible for spacer threads to form substantially linearly arranged connections with the latter during the back and forth between the knitted layers, with a structure of mutually parallel spacer threads extending at right angles to the knitted layers being considered in the direction of production. This is called I-Legung.

Abstandsgewirke der genannten Art werden zu einem großen Anteil aus thermoplastischen Kunststoffäden hergestellt, wobei die beiden Gewirkelagen zumeist aus Multifilamenten und die Abstandsfäden zumeist aus Monofilen bestehen. Die Gewirke werden in einer durch die Produktionsbreite der verwendeten Maschine oder durch den Anwendungszweck bestimmten Breite als fortlaufendes Bahnmaterial hergestellt. Zum Konfektionieren wird das Material mit Kreismessern oder durch Stanzen getrennt. Hierbei wird insbesondere vor dem Aufrollen des Bahnmaterials der nichtverwendbare Kantenbereich thermisch abgetrennt. Unabhängig von der hier bevorzugt genannten Fadenart der thermoplastischen Kunststoffäden erstreckt sich die Erfindung uneingeschränkt jedoch auch auf Abstandsgewirke aus Fadenmaterial aus thermisch stabilen Fäden.Spacer knits of the type mentioned are produced to a large extent from thermoplastic synthetic threads, the two knitted layers mostly consisting of multifilaments and the spacer threads mostly consisting of monofilaments. The knitted fabrics are produced in a width determined by the production width of the machine used or by the intended use as continuous web material. For assembly, the material is separated with circular knives or by punching. In this case, the unavailable edge region is thermally separated, in particular, before the web material rolls up. Irrespective of the type of thread of the thermoplastic synthetic threads mentioned here, however, the invention also extends unrestrictedly to spacer knitted fabrics made of thermally stable threads.

Die Bezugsstoffe der eingangs genannten Art, die mit Abstandsgewirke unterfüttert sind, werden vielfältig im Automobilbereich als Bezugsstoffe für Fahrzeugsitze, insbesondere aber auch als Bezugsstoffe für Armaturenbretter und andere Innenraumverkleidungen eingesetzt. Das Bezugsmaterial dieser Art wird durch aufkaschieren von Bahnmaterial aus homogenem Werkstoff wie Leder oder Kunststoff auf das Bahnmaterial der Abstandsgewirke hergestellt, so daß auch das Ausgangsprodukt zunächst als Bahnmaterial vorliegt. Zur bestimmungsgemäßen Form bzw. den bestimmungsgemäßen Zuschnitt werden aus dem Bahnmaterial entsprechende Zuschnitteile mit Stanzmessern ausgestanzt oder mit Lasern geschnitten.The cover fabrics of the type mentioned above, which are lined with spacer knitted fabric, are widely used in the automotive sector as upholstery fabrics for vehicle seats, but in particular also as upholstery fabrics for dashboards and other interior trim panels. The cover material of this type is made by laminating web material made of homogeneous material such as leather or plastic on the web material of the spacer knitted fabric, so that the starting material is initially present as a web material. For the intended shape or the intended cut corresponding blank pieces are punched out of the web material with punching blades or cut with lasers.

Aus der DE 102 60 694 A1 ist ein Verbund aus streifenförmigen dreidimensionalen textilen Flächengebilden (Abstandsgewirken) bekannt, bei welchem die einzelnen Längsstreifen mit stabilen Längskanten hergestellt sind und durch abweichend eingearbeitete Trennfäden zwischen den Gewirkelagen trennbar verbunden sind. Das entsprechende Herstellverfahren soll zur Erzeugung mehrere elastischer Binden in einem gemeinsamen Arbeitsgang dienen, die in einem anschließenden Trennvorgang vereinzelt werden. Im Bereich der Trennfäden, die in den Gewirkelagen liegen, sind keine Abstandsfäden vorgesehen. Ein homogenes Verhalten des Zwischenerzeugnisses ist nicht zu erwarten.From the DE 102 60 694 A1 is a composite of strip-shaped three-dimensional textile fabrics (spacer knits) known in which the individual longitudinal strips are made with stable longitudinal edges and are separably connected by divergently incorporated separating threads between the fabric layers. The corresponding manufacturing process is intended to serve for producing a plurality of elastic bandages in a common operation, which are separated in a subsequent separation process. There are no spacer threads in the area of the separating threads which lie in the knitted fabric layers. A homogeneous behavior of the intermediate product is not expected.

Aus der EP 0 529 671 A1 ist ein zur Verwendung als Polster-Bezugsstoff geeignetes Textilmaterial bekannt, das ein Abstandsgewirke mit einem aufgeklebten textilen Oberstoff umfaßt. Eine Trennbarkeit an vorgegebenen Solltrennstellen ist hierbei nicht vorgesehen.From the EP 0 529 671 A1 For example, there is known a textile material suitable for use as a upholstery fabric which comprises a spacer fabric having a bonded textile fabric. A separability at predetermined Solltrennstellen is not provided here.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, Erzeugnisse der genannten Art bereitzustellen, die ein vereinfachtes Trennen des Materials entlang vorbestimmter Trennstellen zulassen, wobei das Material auch vor dem Trennen gebrauchsfähig sein soll.The present invention has for its object to provide products of the type mentioned, which allow a simplified separation of the material along predetermined separation points, the material should also be usable before separation.

Die Lösung hierfür besteht in einem Abstandsgewirke oder einem Bezugsmaterial aus einer Deckschicht und einer Unterfütterung aus einem Abstandsgewirke bestehend aus zwei parallel zueinander liegenden Gewirkelagen, die durch zwischen den beiden Gewirkelagen hin und her verlaufende Abstandsfäden miteinander verbunden sind, wobei die Gewirkelagen allgemein in Produktionsrichtung verlaufende Maschen und damit verwirkte Schußfäden aufweisen und die Abstandsfäden allgemein in Produktionsrichtung verlaufen und mit den Gewirkelagen verwirkt sind, wobei in zumindest einer der Gewirkelagen zumindest ein Schußfaden von geringerer Reißfestigkeit zur Erzeugung einer im wesentlichen linearen in Produktionsrichtung verlaufenden Solltrennstelle T eingearbeitet ist und wobei im Bereich des zumindest einen Schußfadens von geringerer Reißfestigkeit eine Auslassung zumindest eines Abstandsfadens zur zusätzlichen Schwächung der Solltrennstelle vorgesehen ist und wobei längs neben der Auslassung des zumindest einen Abstandsfaden zumindest ein zusätzlicher Abstandsfaden in einer von den erstgenannten Abstandsfäden abweichenden, eine höhere Dichte von Verbindungen mit den Gewirkelagen aufweisenden Legung eingearbeitet ist. Hierdurch werden günstige homogene Gebrauchseigenschaften im Hinblick auf eine gleichmäßige Stauchhärte vor dem Trennen erzielt.The solution to this consists in a spacer fabric or a covering material of a cover layer and a lining made of a spacer fabric consisting of two parallel knitted fabric layers, which are connected to each other by spacer threads running back and forth between the two fabric layers, wherein the fabric layers generally mesh in the direction of production and thus entangled weft threads and the spacer threads generally run in the direction of production and are forfeited with the knitted layers, wherein in at least one of the knitted layers at least one weft thread of lower tear strength for producing a substantially linear running in the direction of production target separation point T is incorporated and wherein in the region of at least a weft thread of lesser tear strength, an omission of at least one spacer thread for additional weakening of the predetermined separation point is provided and wherein longitudinally adjacent to the outlet ng of the at least one spacer thread at least one additional spacer thread is incorporated in one of the first-mentioned spacer threads deviating, a higher density of compounds with the fabric layers having layering. As a result, favorable homogeneous usage properties are achieved in terms of a uniform compressive strength before separation.

Hierbei ist vorzugsweise vorgesehen, daß in beiden Gewirkelagen in untereinander übereinstimmender deckungsgleicher Position quer zur Produktionsrichtung jeweils zumindest ein Schußfaden von geringerer Reißfestigkeit zur Erzeugung der Solltrennlinie eingearbeitet ist.In this case, it is preferably provided that at least one weft thread of lesser tear strength is incorporated in both fabric layers in mutually coincident congruent position transversely to the production direction in order to produce the desired separation line.

Hierbei wird insbesondere vorgeschlagen daß die erstgenannten Abstandsfäden in Produktionsrichtung P jeweils in den Gewirkelagen quer hin- und herversetzen (X-Legung) und daß der zumindest eine zusätzliche Abstandsfaden in Produktionsrichtung P jeweils in den Gewirkelagen im wesentlichen linear angeordnete Verbindungen bildet (I-Legung).In this case, it is proposed in particular that the first-mentioned spacer threads move back and forth in the direction of production P in each of the knitted layers (X-laying) and that the at least one additional spacing thread in the production direction P forms in each case substantially linearly arranged connections in the knitted layers (I-laying). ,

Auf diese Weise werden die durch das Auslassen eines Abstandsfadens im Bereich der Trennstelle entstehenden Fehlstellen an Verbindungspunkten (Maschenköpfen) durch neben der Trennstelle liegende zusätzliche und dichter angeordnete Verbindungspunkte (Maschenköpfe) ersetzt. Die liegen bei der Verwendung von zwei zusätzlichen Abstandsfäden zu beiden Seiten der Trennstelle jeweils in etwa linearer Anordnung längs neben derselben. Da die zusätzlichen Abstandsfäden in I-Legung verarbeitet sind entsteht eine jeweils örtlich höhere Stauchhärte, die jedoch auf eine größere Gesamtfläche bezogen eine homogene Stauchhärte des Abstandsgewirkes und eine homogene Oberflächenstruktur der Gewirkelagen sicherstellen soll.In this way, the resulting from the omission of a spacer thread in the region of the separation point defects at connection points (mesh heads) are replaced by lying next to the separation point additional and more densely arranged connection points (mesh heads). The lie in the use of two additional spacer threads on both sides of the separation point in each case approximately linear arrangement along the same. Since the additional spacer threads are processed in I-Legierung arises each locally higher compression hardness, but based on a larger total area to ensure a homogeneous compression hardness of the spacer knitted fabric and a homogeneous surface structure of the fabric layers.

Der zumindest eine zusätzliche Abstandsfaden bzw. die zwei zusätzlichen Abstandsfäden bedürfen jeweils einer zusätzlichen Legeschiene bei der Herstellung, um die abweichende Legungsart im Verhältnis zu den übrigen erstgenannten Abstandsfäden darzustellen.The at least one additional spacer thread or the two additional spacer threads each require an additional guide rail during manufacture in order to represent the deviating method of laying in relation to the other first-mentioned spacer threads.

Für die Schußfäden geringerer Reißfestigkeit (Reißfäden) werden bevorzugt dünne Monofilamente z.B. aus Polyester mit einer Dicke von weniger als 50dTex, insbesondere weniger als 30dTex vorgeschlagen, während für die Schußfäden größerer Reißfestigkeit (Widerstandsfäden) Multifilamente z.B. ebenfalls aus Polyester mit einer Dicke von mehr als 45dTex, insbesondere mehr als 70dTex zur Anwendung kommen sollten.For the weft threads of lower tear strength (tear threads) it is preferable to use thin monofilaments, e.g. of polyester having a thickness of less than 50dTex, in particular less than 30dTex, while for the wefts of greater tear resistance (resistance threads) multifilaments e.g. should also be made of polyester with a thickness of more than 45dTex, especially more than 70dTex should be used.

Mit genannten erfindungsgemäßen Maßnahmen wird sichergestellt, daß bei einer Belastung des Materials in der Materialebene mit einem Belastungsanteil quer zur Produktionsrichtung oder bei Belastung des Materials durch Scherkräfte zu beiden Seite der vorbereiteten Trennstelle senkrecht zur Materialebene das Material entlang der Trennstelle unter Zerstörung der Schußfäden geringerer Reißfestigkeit zerreißt und bestimmungsgemäß entlang einer Linie getrennt wirdWith said measures according to the invention it is ensured that at a load of the material in the material plane with a load proportion transverse to the production direction or under load of the material by shear forces on both sides of the prepared separation point perpendicular to the material plane tears the material along the separation point to destroy the weft threads lesser tear strength and intended to be separated along a line

Dies kann bestimmungsgemäß zu einem ersten Zweck erfolgen, der darin liegt, die bei der Herstellung entstehenden in Produktionsrichtung verlaufenden Längskanten des Abstandsgewirkes, die eine vom übrigen Abstandsgewirke abweichende Form und Qualität haben, vor dem Einsatz des Abstandsgewirkes abzutrennen, wobei dieses Abtrennen durch mechanische Kräfte erfolgen kann und keine thermischen Trennvorrichtungen wie bisher oder keine Kreismesser zum Einsatz kommen müssen. Sofern auf diesen Anwendungszweck abgestellt wird, sind die Trennstellen möglichst nahe entlang der Seitenkanten vorzusehen.This can be done according to the intended purpose for a first purpose, which is to separate the resulting in the production direction longitudinal edges of the spacer knitted fabric, which have a deviating from the other Abstandsgewirke shape and quality, separate before using the spacer knit, this separation is done by mechanical forces can and must be used no thermal separation devices as before or no circular blade. If this application is targeted, the separation points should be provided as close as possible along the side edges.

Dies ist beispielsweise günstig für solche Abstandsgewirke, die in Matratzen oder als Liegematten verwendet werden sollen. Solche Abstandsgewirke haben relativ große Dicke und zur Darstellung erhöhter Rückstellkräfte bei Druckbelastung relativ stabile Monofile als Abstandsfäden. Werden diese Abstandsfäden thermisch oder mechanisch getrennt, entstehen Bruchstücke mit freien Fadenenden, die aus dem Abstandsgewirke herausstechen können und zu Komforteinbußen in der endgültigen Verwendung führen. Dieses Entstehen von Bruchstücken von Abstandsfäden wird mit der vorliegenden Erfindung vermieden.This is for example favorable for such spacer knitted fabrics which are to be used in mattresses or as sleeping mats. Such spacer knitted fabrics have relatively large thickness and for displaying increased restoring forces under pressure load relatively stable monofilaments as spacer threads. If these spacer threads are separated thermally or mechanically, fragments with free thread ends which can stick out of the spacer knitted fabric and lead to loss of comfort in the final use arise. This generation of fragments of spacer threads is avoided with the present invention.

Nach einem zweiten Anwendungszweck kann vorgesehen sein, eine auf maximale Produktionsbreite eingestellte Wirkmaschine zum Einsatz zu bringen, obwohl nur Gewirkematerial von der Breite eines Anteils der Produktionsbreite benötigt wird. Hierbei können in einem Produktionsvorgang zwei oder mehrere zunächst miteinander verbundene in Produktionsrichtung verlaufende Materialstreifen hergestellt werden, die anschließend durch mechanische Kräfte voneinander getrennt werden. Hierbei können beispielsweise Scherkräfte eingesetzt werden, indem die einzelnen Materialstreifen in unterschiedliche Höhenlagen geführt werden und auf Wellen mit voneinander abweichender Achslage aufgewickelt werden.According to a second application, provision may be made for using a knitting machine set to a maximum production width, although only knitted material of the width of a portion of the production width is required. Here, in a production process, two or more strips of material initially connected to one another in the direction of production can be produced, which are subsequently separated from one another by mechanical forces. In this case, for example, shear forces can be used by the individual strips of material are guided to different heights and wound on waves with different axis position.

Ein dritter Anwendungszweck besteht darin, im Bahnmaterial eine Solltrennstelle herzustellen, die erst im Anwendungsfall des aus dem Bahnmaterial hergestellten Zuschnitteils zum Einsatz kommt, insbesondere bei einer Überbelastung des Abstandsgewirkes, bei dem die Art des Versagens bzw. Auftrennens kontrolliert erfolgen soll.A third application is to produce in the web material a predetermined separation point, which is used only in the application of the blanks produced from the sheet material, in particular in an overloading of the spacer knitted fabric, in which the type of failure or separation should be controlled.

Ein erfindungsgemäßes Bezugsmaterial kann ähnlich den vorher genannten Bestimmungszwecken dazu dienen, daß von dem Bezugsmaterial unbrauchbare bei der Herstellung erzeugte Ränder abgetrennt werdenA cover material according to the invention may serve, similar to the above-mentioned destinations, to separate off edges which are made unusable by the cover material during production

Ebenso kann der Bestimmungszweck darin liegen, daß bei Ausnutzung großer Maschinenbreiten mehrere anschließend voneinander zu trennende Materialstreifen des Bezugsmaterials erzeugt werden, die nur die Hälfte oder einen anderen Bruchteil der zur Verfügung stehenden Herstellbreite umfassen.Likewise, the intended purpose may be that when using large machine widths, a plurality of material strips of the cover material to be subsequently separated are produced, which comprise only half or a different fraction of the available production width.

Ein dritter und wesentlicher Verwendungszweck liegt schließlich darin, Bezugsmaterial darzustellen, das bei einer Überbelastung im Einsatz an einer vorbestimmten kontrollierten Trennstelle zerstört wird bzw. kontrolliert zerreißt.Finally, a third and essential use is to provide cover material which is destroyed or torn under control during overloading in use at a predetermined controlled separation point.

Ein derartiger Einsatzfall kann insbesondere in der Verwendung des Bezugsmaterials als Bezugsstoff für ein Armaturenbrett eines Kraftfahrzeuges liegen, unter dem ein sogenannter Airbag zur Sicherung des Beifahrers eingebaut ist, oder in der Verwendung als Lenkradbezug des Lenkrads eines Kraftfahrzeuges liegen, in dessen Lenkradplatte oder Prallplatte ein Airbag eingebaut ist. Bei explosiver Auslösung des unter diesem Bezugsstoff eingebauten Airbags soll dessen Funktion nicht behindert werden und der Bezugsstoff, der von außen eine Trennstelle nicht erkennen läßt, soll entlang einer vorgegebenen Trennstelle leicht zerreißbar sein.Such an application may be in particular in the use of the reference material as cover fabric for a dashboard of a motor vehicle, under which a so-called airbag is installed to secure the passenger, or are in use as steering wheel cover of the steering wheel of a motor vehicle, in the steering wheel plate or flapper an airbag is installed. In explosive release of the built-under this fabric cover airbag whose function should not be hindered and the fabric, which does not recognize a separation point from the outside, should be easily breakable along a predetermined separation point.

Zwei bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt, die nachstehend beschrieben werden.

Figur 1
zeigt einen Ausschnitt eines erfindungsgemäßen Abstandsgewirkes in isometrischer Darstellung;
Figur 2
zeigt einen Ausschnitt eines erfindungsgemäßen Abstandsgewirkes mit aufkaschiertem Bezugsmaterial in isometrischer Darstellung.
Two preferred embodiments of the invention are illustrated in the drawings which will be described below.
FIG. 1
shows a section of a spacer knitted fabric according to the invention in an isometric view;
FIG. 2
shows a section of a spacer fabric according to the invention with laminated reference material in an isometric view.

In Figur 1 ist ein rechteckiger Ausschnitt eines erfindungsgemäßen Abstandsgewirkes 11 gezeigt, bei dem die dargestellten Begrenzungskanten nur systematisch zu verstehen sind, da ein Gewirke real aus nicht geradlinig verlaufenden Maschen und Schußfäden in den Gewirkelagen und Abstandsfäden zwischen den Gewirkelagen besteht.In FIG. 1 a rectangular section of a spacer fabric 11 according to the invention is shown, in which the boundary edges shown are only to be understood systematically, since a knitted fabric consists of non-rectilinear stitches and weft threads in the fabric layers and spacer threads between the fabric layers.

Es ist eine obere Gewirkelage 12, eine untere Gewirkelage 13 sowie dazwischenliegende Abstandsfäden 14 erkennbar, wobei mit dem Pfeil P die Produktionsrichtung des Abstandsgewirkes bezeichnet ist. Die beiden Gewirkelagen bestehen aus in Produktionsrichtung verlaufenden Maschen 22, 23 aus Kettfäden und damit verwirkten Schußfäden 15, 16. Es soll verstanden werder, daß die gesamte obere Gewirkelage 12 und die gesamte untere Gewirkelage 13 vollständig aus im wesentlichen gleichartig verlaufenden Maschen und gleichartig miteinander verwirkten Schußfäden 15, 16 besteht. Die Abstandsfäden 14 oder Polfäden sind nur an der vorderen Querkante symbolhaft dargestellt, nicht jedoch an der in Produktionsrichtung verlaufenden vorderen Seitenkante. Die Abstandsfäden 14 verlaufen im wesentlichen in Produktionsrichtung P und bewegen sich zwischen den beiden Gewirkelagen 12, 13, in die sie eingewirkt sind, regelmäßig hin und her. Hierbei versetzt jeder der Polfäden 14 hin- und her quer zur Produktionsrichtung, was durch die Kreuzstruktur der Linien angedeutet ist. Die Bezeichnung für diese Legungsart ist X-Legung. Die Schußfäden 15, 16 umfassen erfindungsgemäß erste Schußfäden von größerer Reißfestigkeit, die durch stärkere Linien symbolisiert werden und in einem Trennbereich von der Breite T zweite Schußfäden 15', 16' von geringerer Reißfestigkeit, die durch schwächere Linien symbolisiert werden. Im Bereich der Schußfäden 15 der oberen Gewirkelage 12 und 16 der unteren Gewirkelage 13 findet sich in dem Trennbereich von der Breite T eine Auslassung der Abstandsfäden 14 zu beiden Seiten des Trennbereichs von der Breite T sind jedoch zusätzliche Abstandsfäden 24, 25 vorgesehen, die ebenfalls im wesentlichen in Produktionsrichtung P verlaufen und sich dabei zwischen den Gewirkelagen 12, 13 hin- und herbewegen, ohne dabei quer zur Produktionsrichtung hin- und her bewegen, ohne dabei quer zur Produktionsrichtung hin- und her zu versetzen, was durch senkrecht den Gewirkelagen 12, 13 eingezeichnete Linien angedeutet ist. Diese Legungsart wird I-Legung genannt. Die Schußfäden 15', 16' geringerer Reißfestigkeit können durch eine von den Schußfäden größerer Reißfestigkeit abweichende Farbe markiert werden. Die unterschiedliche Reißfestigkeit der Schußfäden kann durch unterschiedliche Fadendicke oder Anzahl der Filamente oder bei gleichen Fadendicken durch eine unterschiedliche Qualität dargestellt werden. Es ist verständlich, daß bei einer Belastung senkrecht zur Produktionsrichtung oder bei einer Belastung durch Scherkräfte senkrecht zur Ebene der Gewirkelagen 12, 13 das Abstandsgewirke 11 entlang der Trennstelle von der Breite T unter Zerreißen von zumindest jeweils einem Schußfaden 15', 16' geringerer Reißfestigkeit versagen wird. Dies ist Sinn und Zweck des Gegenstandes der Erfindung.It is an upper knitted fabric layer 12, a lower knitted fabric layer 13 and intermediate spacer threads 14 can be seen, wherein the arrow P indicates the direction of production of the spacer knitted fabric. It is to be understood that the entire upper knitted fabric layer 12 and the entire lower knitted fabric layer 13 are entirely made up of substantially similar stitches and are similar to one another Weft threads 15, 16 exists. The spacer threads 14 or pile threads are shown symbolically only at the front transverse edge, but not at the front side edge running in the direction of production. The spacer threads 14 extend substantially in the direction of production P and move back and forth between the two knitted layers 12, 13, in which they are acted upon. Here, each of the pile threads 14 back and forth transversely to the production direction, which is indicated by the cross structure of the lines. The designation for this type of laying is X-laying. According to the invention, the weft threads 15, 16 comprise first weft threads of greater tear strength, which are symbolized by stronger lines, and in a separation area of the width T second weft threads 15 ', 16' of lower tear strength, which are symbolized by weaker lines. In the area of the weft threads 15 of the upper knitted fabric 12 and 16 of the lower knitted fabric 13 is in the separation region of the width T an omission of the spacer threads 14 on both sides of the separation region of the width T, however, additional spacer threads 24, 25 are provided, which are also in the essentially in the direction of production P and thereby move back and forth between the fabric layers 12, 13, without thereby transversely to the production direction back and forth, without transversely to the production direction back and forth to offset, which is perpendicular to the fabric layers 12, 13th drawn lines is indicated. This type of laying is called I-laying. The Weft threads 15 ', 16' lower tear strength can be marked by a deviating from the weft threads tear strength color. The different tensile strength of the weft threads can be represented by different thread thickness or number of filaments or at the same thread thicknesses by a different quality. It will be understood that when loaded perpendicular to the direction of production or under shear stress perpendicular to the plane of the fabric layers 12, 13, the spacer fabric 11 will fail along the separation point of the width T, tearing at least one weft yarn 15 ', 16' of lower tear strength becomes. This is the purpose of the subject of the invention.

In Figur 2 ist ein Bezugsmaterial 21 aus einem Abstandsgewirke nach Figur 1 unter Verwendung der gleichen Bezugszeichen gezeigt, auf das eine Deckschicht 17 von im wesentlichen homogener Materialqualität aufkaschiert ist. Der hierbei verwendete Kleberwerkstoff ist nicht im einzelnen dargestellt. Die Produktionsrichtung ist wiederum durch einen Pfeil P angedeutet. Die aufkaschierte Deckschicht 17 verdeckt die obere Gewirkelage 12; von der unteren Gewirkelage 13 sind die Maschen 23 und ebenfalls Schußfäden 16' geringerer Reißfestigkeit in dem Bereich von der Breite T dargestellt. Seitlich davon sind Schußfäden 16 größerer Reißfestigkeit angedeutet. Der Aufbau der oberen Gewirkelage 12 soll vollständig der in Figur 1 dargestellten entsprechen. Die Deckschicht 17 hat eine innenliegende längsverlaufende Ritzung 18, die sich über die vordere Hälfte des Materialabschnitts erstreckt und die nur einen Teil der Dicke D der Deckschicht 17 umfaßt. Die außenliegende Seite des Bezugsmaterials läßt diese Ritzung insoweit nicht erkennen. In der hintenliegenden Hälfte des Materialabschnitts weist die Deckschicht 17 eine Perforierungslinie 19 auf, die sich durch die gesamte Dicke D der Deckschicht 17 zieht und insoweit von außen am Bezugsmaterial zu erkennen ist. Es versteht sich, daß das Abstandsgewirke 11 mit aufkaschierter Deckschicht 17 bei Zugbelastung in der Materialebene senkrecht zur Produktionsrichtung P oder bei Belastung unter Scherkräften senkrecht zur Ebene der Gewirkelagen 12, 13 im Bereich der Trennstelle von der Breite T zerstört wird, wobei die Deckschicht 17 entlang der Ritzung 18 oder der Perforation 19 auseinanderreißen wird. Dies ist der Sinn und Zweck des Gegenstandes der Erfindung.In FIG. 2 is a cover material 21 made of a spacer knitted fabric FIG. 1 shown using the same reference numerals, on which a cover layer 17 of substantially homogeneous material quality is laminated. The adhesive material used here is not shown in detail. The production direction is again indicated by an arrow P. The laminated cover layer 17 covers the upper knitted fabric layer 12; from the lower fabric layer 13, the stitches 23 and also weft threads 16 'of lower tear strength are shown in the region of the width T. Side of it weft yarns 16 greater tear strength are indicated. The structure of the upper knitted fabric layer 12 should be completely in FIG. 1 represented correspond. The cover layer 17 has an internal longitudinal score 18 which extends over the front half of the material portion and which comprises only a portion of the thickness D of the cover layer 17. The outer side of the cover material can not recognize this scribe extent. In the rear half of the material section, the cover layer 17 has a perforation line 19, which extends through the entire thickness D of the cover layer 17 and to this extent can be seen from the outside on the cover material. It is understood that the spacer fabric 11 is destroyed with the top layer 17 laminated with tensile stress in the material plane perpendicular to the production direction P or under shear forces perpendicular to the plane of the fabric layers 12, 13 in the region of the separation point of the width T, wherein the cover layer 17 along the score 18 or the perforation 19 will tear apart. This is the purpose of the subject invention.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1111
Abstandsgewirkespacer
1212
obere Gewirkelageupper knitted layer
1313
untere Gewirkelagelower fabric layer
1414
Abstandsfädenspacer threads
1515
Schußfäden (obere Gewirkelage)Weft threads (upper knitted layer)
1616
Schußfäden (untere Gewirkelage)Weft threads (lower knitted fabric layer)
1717
Deckschichttopcoat
1818
Ritzungscoring
1919
Perforierungperforation
2121
Bezugsmaterialreference material
2222
Masche (obere Gewirkelage)Mesh (upper knitted layer)
2323
Masche (untere Gewirkelage)Mesh (lower knitted fabric)
2424
Abstandsfadenspacer thread
2525
Abstandsfadenspacer thread
TT
Trennbereichseparating region
DD
Dicke DeckschichtThick cover layer

Claims (22)

  1. A spacer fabric (11) consisting of two fabric layers (12, 13) which are positioned parallel to one another and which are connected to one another by spacer threads (14) extending to and fro between the two fabric layers (12, 13),
    wherein the fabric layers (12, 13) comprise stitches (22, 23) generally extending in the production direction, as well as weft threads (15, 16) connected thereto by knitting, and wherein the spacer threads (14) generally extend in the production direction and are connected to the fabric layers (12, 13),
    wherein in at least one of the fabric layers (12, 13) there is worked in at least one weft thread (15', 16') of a lower tear strength for producing a substantially linear nominal separating region (T) and
    wherein, in the region of the at least one weft thread (15' 16') of a lower tear strength there is left out at least one spacer thread (14) for additionally weakening the substantially linear separating region (T),
    characterised in
    that alongside the region where at least one spacer thread (14) has been left out, there is worked in at least one additional spacer thread (24, 25) in a type of laying which deviates from the laying of the spacer threads (14) mentioned first.
  2. A spacer fabric according to claim 1,
    characterised in
    that, in the production direction P, the spacer threads (14) mentioned first, in the fabric layers (12, 13), are transversely offset to and fro (X-laying) and that, in the production direction P, the at least one additional spacer thread (24, 25) in the fabric layers (12, 13) forms a substantially linearly arranged connection (I-laying).
  3. A spacer fabric according to any one of claims 1 or 2,
    characterised in
    that into each of the two fabric layers (12, 13), in positions corresponding to one another, there is worked in at least one weft thread (15', 16') of a lower tear strength for producing the substantially linear nominal separating region (T).
  4. A spacer fabric according to any one of claims 1 to 3,
    characterised in
    that the at least one weft thread (15', 16') of a lower tear strength is marked by a colour deviating from that of the remaining weft threads (15, 16).
  5. A spacer fabric according to any one of claims 1 to 3,
    characterised in
    that the weft threads (15, 16) of a greater tear strength which directly adjoin the at least one weft thread (15', 16') of a lower tear strength are marked by a colour deviating from that of the remaining weft threads.
  6. A spacer fabric according to any one of claims 1 to 5,
    characterised in
    that the weft threads (15', 16') of a lower tear strength are formed by a mono-filament with a thickness smaller than 50dTex, more particularly smaller than 30dTex.
  7. A spacer fabric according to any one of claims 1 to 6,
    characterised in
    that the weft threads (15, 16) of a higher tear strength are formed by multi-filaments with a thickness greater than 45dTex, more particularly greater than 70dTex.
  8. A spacer fabric according to any one of claims 1 to 7,
    characterised in
    that a nominal separating region (T) is provided in the vicinity of the edges extending laterally relative to the production direction (P) for the purpose of separating the production edges.
  9. A spacer fabric according to any one of claims 1 to 8,
    characterised in
    that a plurality of nominal separating regions (T) is provided, more particularly so as to extend at identical distances from one another to be able to produce out of the spacer fabric individual strips of a predetermined width extending in the production direction (P).
  10. A covering material consisting of a cover layer (17) and a lining consisting of a spacer fabric (11) consisting of two fabric layers (12, 13) which are positioned parallel to one another and which are connected to one another by spacer threads (14) extending to and fro between the two fabric layers (12, 13),
    wherein the fabric layers (12, 13) comprise stitches (22, 23) generally extending in the direction of production, as well as weft threads (15, 16) connected thereto by knitting, and wherein the spacer threads (14) generally extend in the production direction and are connected to the fabric layers (12, 13),
    characterised in
    that in at least one of the fabric layers (12, 13) there is worked in a weft thread (15', 16') of a lower tear strength for producing a substantially linear nominal separating region (T) and
    that, in the region of the at least one weft thread (15' 16') of a lower tear strength there is left out at least one spacer thread (14) for additionally weakening the substantially linear separating region (T),
    wherein alongside the region where the at least one spacer thread (14) has been left out, there is worked in at least one additional spacer thread (24, 25) in a type of laying which deviates from the laying of the spacer threads (14) mentioned first.
  11. A covering material according to claim 10,
    characterised in
    that into each of the two fabric layers (12, 13), in positions which correspond to one another, there is worked in at least one weft thread (15', 16') of a lower tear strength for producing the substantially linear nominal separating region (T).
  12. A covering material according to claim 10 or 11,
    characterised in
    that, in the production direction P, the spacer threads (14) mentioned first, in the fabric layers (12, 13) are transversely offset to and fro (X-laying) and that, in production direction P, the at least one additional spacer thread (24, 25) in the fabric layers (12, 13) forms a substantially linearly arranged connection (l-laying).
  13. A covering material according to any one of claims 10 to 12,
    characterised in
    that the cover layer (17), in the nominal separating region, comprises a material weakening which extends in accordance with the nominal separating region (T).
  14. A covering material according to any one of 10 to 13,
    characterised in
    that the cover layer (17) consists of a largely homogenous material such as leather or plastic sheeting.
  15. A covering material according to claim 13,
    characterised in
    the weakening of the cover layer (17) is caused by a continuous or dashed inner scratched line or dotted line (18).
  16. A covering material according to any one of claims 10 to 15,
    characterised in
    that the cover layer (17) is laminated on to the spacer fabric (11).
  17. A covering material according to any one of claims 10 to 16,
    characterised in
    that the at least one weft thread (15', 16') of a lower tear strength is marked by a colour which deviates of that of the remaining weft threads (15, 16).
  18. A covering material according to any one of claims 10 to 16,
    characterised in
    that the weft threads (15, 16) of a greater tear strength which directly adjoin the at least one weft thread (15', 16') of a lower tear strength are marked by a colour deviating from that of the remaining weft threads.
  19. A covering material according to any one of claims 10 to 18,
    characterised in
    that the weft threads (15', 16') of a lower tear strength are formed by a mono-filament with a thickness smaller than 50dTex, more particularly smaller than 30dTex.
  20. A covering material according to any one of claims 10 to 19,
    characterised in
    that the weft threads (15, 16) of a higher tear strength are formed by multi-filaments with a thickness greater than 50dTex, more particularly greater than 75dTex.
  21. A covering material according to any one of claims 10 to 20,
    characterised in
    that a nominal separating region (T) is provided in the vicinity of the edges extending laterally relative to the production direction (P) for the purpose of separating the production edges.
  22. A covering material according to any one of claims 10 to 21,
    characterised in
    that a plurality of nominal separating regions (T) is provided, more particularly so as to extend at identical distances from one another to be able to produce out of the spacer fabric individual strips of a predetermined width extending in the production direction (P).
EP07009785A 2006-05-17 2007-05-16 Spacer fabric with tear strips Active EP1860218B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006023356A DE102006023356A1 (en) 2006-05-17 2006-05-17 Spacer fabric for relining on covering material for vehicle seat, instrument panels and vehicle interior covering, has two fabric layers lying parallelly to each other and isolating threads arranged between the fabric layers having stitches

Publications (2)

Publication Number Publication Date
EP1860218A1 EP1860218A1 (en) 2007-11-28
EP1860218B1 true EP1860218B1 (en) 2009-02-18

Family

ID=38578498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07009785A Active EP1860218B1 (en) 2006-05-17 2007-05-16 Spacer fabric with tear strips

Country Status (4)

Country Link
US (1) US7418837B2 (en)
EP (1) EP1860218B1 (en)
AT (1) ATE423233T1 (en)
DE (2) DE102006023356A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010524A1 (en) 2010-03-05 2011-09-08 Müller Textil GmbH Spacer textile, particularly knitted spacer fabric for use with composite material for interior lining of motor vehicle, comprises two top layers spaced from each other, and spacer threads, where top layers are formed by stitch courses
DE202017004545U1 (en) 2017-08-22 2017-11-24 Gertex Textil Gmbh 3D textile structure with predetermined breaking lines with defined opening due to similar yarn types (Easy Weak)
DE202017004618U1 (en) 2017-08-22 2017-12-07 Gertex Textil Gmbh Textile 3D structure with defined breaking points (ISO Weak)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006004914B4 (en) * 2006-02-01 2010-03-11 Otto Bock Healthcare Gmbh Spacer knit and method for its production
US7552604B1 (en) * 2008-04-09 2009-06-30 Milliken & Company Double needle bar elastomeric spacer knit
DE102008033584A1 (en) * 2008-07-17 2010-01-28 Müller Textil GmbH Spacer fabric for use in e.g. seat of motor vehicle, has spacer threads distributed over width of fabric in production direction, converted into inclined part, and omitted in area of weft threads of low tensile strength
DE102008038098B4 (en) 2008-08-18 2012-01-26 Teijin Monofilament Germany Gmbh Use of a textile product
EP2156762A1 (en) * 2008-08-21 2010-02-24 Masai Marketing & Trading AG Shoe sole with air ventilation
DE102008046437B4 (en) * 2008-09-09 2014-11-13 Müller Textil GmbH Spacer knit with evenly distributed tear points
GB0908789D0 (en) * 2009-05-21 2009-07-01 Heathcoat Fabrics Ltd Knitted fabric
JP5803595B2 (en) * 2011-11-15 2015-11-04 タカタ株式会社 Air belt and air belt device
US8747593B2 (en) 2012-04-10 2014-06-10 Nike, Inc. Methods for manufacturing fluid-filled chambers incorporating spacer textile materials
US9375049B2 (en) 2012-04-10 2016-06-28 Nike, Inc. Spacer textile materials and methods for manufacturing the spacer textile materials
DE102012105134B4 (en) * 2012-06-13 2020-06-04 Müller Textil GmbH Spacer fabrics and automotive interior
US10631593B2 (en) 2012-08-21 2020-04-28 Levi J. Patton Fluid-filled chamber with a stabilization structure
WO2014101927A1 (en) 2012-12-28 2014-07-03 Sca Hygiene Products Ab Absorbent article having a spacer fabric as fluid flow control member
US9937085B2 (en) * 2012-12-28 2018-04-10 Sca Hygiene Products Ab Absorbent article having fluid flow control member
DE102014103861B4 (en) * 2014-03-20 2016-12-22 Müller Textil GmbH Spacer knit and method for producing a spacer knitted fabric
EP3075893B1 (en) * 2015-04-02 2018-09-12 Karl Mayer Textilmaschinenfabrik GmbH Knitwear and method for manufacturing knitwear
DE102016103960B3 (en) * 2016-03-04 2017-07-13 medi prosthetics GmbH Knitted piece in the form of a leg or arm stocking
DE102018114566B3 (en) * 2018-06-18 2019-07-11 Müller Textil GmbH Use of spacer fabric, interior trim and spacer fabric
DE102019101208A1 (en) 2019-01-17 2020-07-23 Müller Textil GmbH Trim part and method for producing a trim part
CN112626700B (en) * 2020-11-29 2022-03-01 福建省晋江市华宇织造有限公司 Tearable net cloth

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US459866A (en) * 1891-09-22 Half to hugh mcgill
US592057A (en) * 1897-05-26 1897-10-19 Island
US3470928A (en) * 1967-10-26 1969-10-07 Avisun Corp Polypropylene fabric with modified selvage
US3656323A (en) * 1970-01-19 1972-04-18 Union Carbide Corp Tubular fabric article and method for making same
SE402201B (en) * 1976-10-14 1978-06-26 Eiser Ab SAWING PROTECTION
US4497187A (en) * 1980-10-15 1985-02-05 Isaburo Yamaguchi Method of manufacturing a burning wick
DE3671259D1 (en) * 1985-08-22 1990-06-21 Asahi Chemical Ind CHAIN-KNITTED SPATIAL CONSTRUCTION AND METHOD AND DEVICE FOR THEIR PRODUCTION.
DE59203090D1 (en) * 1991-08-30 1995-09-07 Kneitz Wilhelm & Co Ag Laminated textile material, in particular for technical purposes.
US5605731A (en) * 1993-03-01 1997-02-25 Guasch Pubill; Marcos Process for obtaining disposable cleaning cloths and resulting disposable cleaning cloth
US5385036A (en) * 1993-05-24 1995-01-31 Guilford Mills, Inc. Warp knitted textile spacer fabric, method of producing same, and products produced therefrom
ES2121683B1 (en) * 1996-02-29 1999-07-01 Estor S L L IMPROVEMENTS INTRODUCED IN THE MAKING OF BLINDS.
FR2749327B1 (en) * 1996-06-04 1998-06-26 Commissariat Energie Atomique KNITTED DOUBLE-SKIN TEXTILE STRUCTURE AND ORIENTABLE BONDING YARN AND METHOD FOR MANUFACTURING THE SAME
DE19836447B4 (en) * 1998-03-13 2006-05-11 Weiss, Albert Roller blind section production from a continuous fabric web
US6196032B1 (en) * 1998-08-12 2001-03-06 Malden Mills Industries, Inc. Double face warp knit fabric with two-side effect
US6308538B1 (en) * 1999-07-22 2001-10-30 Berkshire Corporation Method and apparatus for manufacturing individual wipers having finished edges
US6644070B2 (en) * 2001-03-29 2003-11-11 Asahi Kasei Kabushiki Kaisha Three-dimensional fabric for seat
EP1449946B1 (en) * 2001-10-31 2009-01-07 Asahi Kasei Fibers Corporation Elastic knitting fabric having multilayer structure
DE10260694B4 (en) * 2002-11-29 2008-08-07 Textilforschungsinstitut Thüringen-Vogtland e.V. Process for producing longitudinally elastic three-dimensional textile fabrics
US6755052B1 (en) * 2003-01-16 2004-06-29 Ronald M. Sytz Knitted stretch spacer material and method of making
US6823700B1 (en) * 2003-08-19 2004-11-30 Kang Moon Yi Pile yarn processed warp knit fabric divided into a plurality of unified warp knit fabrics by cutting portions
DE102004014942A1 (en) * 2004-03-26 2005-10-20 Draexlmaier Lisa Gmbh airbag cover

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010524A1 (en) 2010-03-05 2011-09-08 Müller Textil GmbH Spacer textile, particularly knitted spacer fabric for use with composite material for interior lining of motor vehicle, comprises two top layers spaced from each other, and spacer threads, where top layers are formed by stitch courses
DE102010010524B4 (en) * 2010-03-05 2013-11-07 Müller Textil GmbH Spacer textile, in particular spacer fabric
DE202017004545U1 (en) 2017-08-22 2017-11-24 Gertex Textil Gmbh 3D textile structure with predetermined breaking lines with defined opening due to similar yarn types (Easy Weak)
DE202017004618U1 (en) 2017-08-22 2017-12-07 Gertex Textil Gmbh Textile 3D structure with defined breaking points (ISO Weak)
DE102018116321A1 (en) 2017-08-22 2019-02-28 Gertex Textil Gmbh 3D textile structure with predetermined breaking lines with defined opening due to similar yarn types (Easy Weak)
DE102018116322A1 (en) 2017-08-22 2019-02-28 Gertex Textil Gmbh Textile 3D structure with defined breaking points (ISO Weak)

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EP1860218A1 (en) 2007-11-28
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US7418837B2 (en) 2008-09-02
US20080072627A1 (en) 2008-03-27
DE102006023356A1 (en) 2007-11-22

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