EP1860218B1 - Tricot double parois comprenant de fils de fissure - Google Patents

Tricot double parois comprenant de fils de fissure 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
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07009785A
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German (de)
English (en)
Other versions
EP1860218A1 (fr
Inventor
Frank Müller
Stefan Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mueller Textil GmbH
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Mueller Textil GmbH
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Filing date
Publication date
Application filed by Mueller Textil GmbH filed Critical Mueller Textil GmbH
Publication of EP1860218A1 publication Critical patent/EP1860218A1/fr
Application granted granted Critical
Publication of EP1860218B1 publication Critical patent/EP1860218B1/fr
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Classifications

    • 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)

Claims (22)

  1. Tissu à mailles tridimensionnel à couches espacées (11) constitué de deux couches de tricot (12, 13) placées parallèlement l'une à l'autre, qui sont reliées l'une à l'autre par des fils d'espacement (14) s'étendant en va et vient entre les deux couches de tricot (12, 13), tissu à mailles dans lequel
    les couches de tricot (12, 13) présentent des mailles (22, 23), qui s'étendent de manière générale dans la direction de production, et des fils de trame (15, 16) tricotés avec ces mailles, et les fils d'espacement (14) s'étendent de manière générale dans la direction de production et sont liés aux couches de tricot (12, 13), dans au moins l'une des couches de tricot (12, 13) est inséré au moins un fil de trame (15', 16') de résistance moindre à la rupture en vue de créer une zone de sectionnement programmé (T) sensiblement linéaire, et
    dans la zone de ce ou de ces fils de trame (15', 16') de résistance moindre à la rupture, il est prévu la suppression d'au moins un fil d'espacement (14) pour l'affaiblissement supplémentaire de la zone de sectionnement programmé (T) sensiblement linéaire,
    caractérisé en ce que le long et à côté de ce ou de ces fils d'espacement (14) supprimés est inséré au moins un fil d'espacement supplémentaire (24, 25) dont le schéma de pose ou de monture est différent de celui des fils d'espacement (14) cités en premier lieu.
  2. Tissu à mailles tridimensionnel selon la revendication 1, caractérisé en ce que dans la direction de production P, les fils d'espacement (14) cités en premier lieu se déportent respectivement dans les couches de tricot (12, 13) transversalement en va et vient (schéma de pose ou de monture en X), et en ce que le ou les fils d'espacement supplémentaires (24, 25) forment, dans la direction de production P, respectivement dans les couches de tricot (12, 13), des liaisons agencées sensiblement de manière linéaire (schéma de pose ou de monture en I).
  3. Tissu à mailles tridimensionnel selon l'une des revendications 1 ou 2, caractérisé en ce que dans les deux couches de tricot (12, 13) est inséré, dans une position mutuellement coïncidente en recouvrement, respectivement au moins un fil de trame (15', 16') de résistance moindre à la rupture pour réaliser la zone de sectionnement programmé (T) sensiblement linéaire.
  4. Tissu à mailles tridimensionnel selon l'une des revendications 1 à 3, caractérisé en ce que le ou les fils de trame (15', 16') de résistance moindre à la rupture est ou sont marqués par une couleur distincte de celle des autres fils de trame (15, 16).
  5. Tissu à mailles tridimensionnel selon l'une des revendications 1 à 3, caractérisé en ce que les fils de trame (15, 16) de résistance à la rupture plus élevée, sont marqués, directement au voisinage du ou des fils de trame (15', 16') de résistance moindre à la rupture, par une couleur distincte de celle des autres fils de trame.
  6. Tissu à mailles tridimensionnel selon l'une des revendications 1 à 5, caractérisé en ce que les fils de trame (15', 16') de résistance moindre à la rupture sont formés par un monofilament d'une épaisseur inférieure à 50dTex, notamment inférieure à 30dTex.
  7. Tissu à mailles tridimensionnel selon l'une des revendications 1 à 6, caractérisé en ce que les fils de trame (15, 16) de résistance à la rupture plus élevée sont formés de filaments multiples d'une épaisseur supérieure à 45dTex, notamment supérieure à 70dtex.
  8. Tissu à mailles tridimensionnel selon l'une des revendications 1 à 7, caractérisé en ce qu'une zone de sectionnement programmé (T) est prévue à proximité de chacun des bords latéraux en se référant à la direction de production (P), en vue du sectionnement des bords du produit.
  9. Tissu à mailles tridimensionnel selon l'une des revendications 1 à 8, caractérisé en ce que plusieurs zones de sectionnement programmé (T) sont prévues notamment à intervalles identiques les unes des autres, en vue de fabriquer à partir du tissu à mailles tridimensionnel, des bandes individuelles d'une largeur déterminée souhaitée, qui s'étendent dans la direction de production (P).
  10. Matériau de revêtement formé d'une couche de recouvrement (17) et d'un doublage sous-jacent formé par un tissu à mailles tridimensionnel (11) constitué de deux couches de tricot (12, 13) placées parallèlement l'une à l'autre, qui sont reliées l'une à l'autre par des fils d'espacement (14) s'étendant en va et vient entre les deux couches de tricot (12, 13), les couches de tricot (12, 13) présentant des mailles (22, 23), qui s'étendent de manière générale dans la direction de production, et des fils de trame (15, 16) tricotés avec ces mailles, et les fils d'espacement (14) s'étendant de manière générale dans la direction de production et étant liés aux couches de tricot (12, 13),
    caractérisé
    en ce que dans au moins l'une des couches de tricot (12, 13) est inséré au moins un fil de trame (15', 16') de résistance moindre à la rupture en vue de créer une zone de sectionnement programmé (T) sensiblement linéaire, et en ce que dans la zone de ce ou de ces fils de trame (15', 16') de résistance moindre à la rupture, il est prévu la suppression d'au moins un fil d'espacement (14) pour l'affaiblissement supplémentaire de la zone de sectionnement programmé (T) sensiblement linéaire,
    et le long et à côté de ce ou de ces fils d'espacement (14) supprimés est inséré au moins un fil d'espacement supplémentaire (24, 25) dont le schéma de pose ou de monture est différent de celui des fils d'espacement (14) cités en premier lieu.
  11. Matériau de revêtement selon la revendication 10, caractérisé en ce que dans les deux couches de tricot (12, 13) est inséré, dans une position mutuellement coïncidente en recouvrement, respectivement au moins un fil de trame (15', 16') de résistance moindre à la rupture pour réaliser la zone de sectionnement programmé (T) sensiblement linéaire.
  12. Matériau de revêtement selon la revendication 10 ou 11, caractérisé en ce que dans la direction de production P, les fils d'espacement (14) cités en premier lieu se déportent respectivement dans les couches de tricot (12, 13) transversalement en va et vient (schéma de pose ou de monture en X), et en ce que le ou les fils d'espacement supplémentaires (24, 25) forment, dans la direction de production P, respectivement dans les couches de tricot (12, 13), des liaisons agencées sensiblement de manière linéaire (schéma de pose ou de monture en I).
  13. Matériau de revêtement selon l'une des revendications 10 à 12, caractérisé en ce que la couche de recouvrement (17) possède, dans la zone de sectionnement programmé (T), un affaiblissement de matière s'étendant de manière concordante avec la zone de sectionnement programmé (T).
  14. Matériau de revêtement selon l'une des revendications 10 à 13, caractérisé en ce que la couche de recouvrement (17) est un matériau dans une large mesure homogène, comme du cuir ou une feuille de matière plastique.
  15. Matériau de revêtement selon la revendication 13, caractérisé en ce que l'affaiblissement de la couche de recouvrement (17) est réalisé par une incision interne continue ou selon des tirets ou bien par un marquage interne en pointillés (18).
  16. Matériau de revêtement selon l'une des revendications 10 à 15, caractérisé en ce que la couche de recouvrement (17) est contrecollée par laminage sur le tissu à mailles tridimensionnel (11).
  17. Matériau de revêtement selon l'une des revendications 10 à 16, caractérisé en ce que le ou les fils de trame (15', 16') de résistance moindre à la rupture est ou sont marqués par une couleur distincte de celle des autres fils de trame (15, 16).
  18. Matériau de revêtement selon l'une des revendications 10 à 16, caractérisé en ce que les fils de trame (15, 16) de résistance à la rupture plus élevée, sont marqués, directement au voisinage du ou des fils de trame (15', 16') de résistance moindre à la rupture, par une couleur distincte de celle des autres fils de trame.
  19. Matériau de revêtement selon l'une des revendications 10 à 18, caractérisé en ce que les fils de trame (15', 16') de résistance moindre à la rupture sont formés par un monofilament d'une épaisseur inférieure à 50dTex, notamment inférieure à 30dTex.
  20. Matériau de revêtement selon l'une des revendications 10 à 19, caractérisé en ce que les fils de trame (15, 16) de résistance à la rupture plus élevée sont formés de filaments multiples d'une épaisseur supérieure à 50dTex, notamment supérieure à 75dtex.
  21. Matériau de revêtement selon l'une des revendications 10 à 20, caractérisé en ce qu'une zone de sectionnement programmé (T) est prévue à proximité de chacun des bords latéraux en se référant à la direction de production (P), en vue du sectionnement des bords du produit.
  22. Matériau de revêtement selon l'une des revendications 10 à 21, caractérisé en ce que plusieurs zones de sectionnement programmé (T) sont prévues notamment à intervalles identiques les unes des autres, en vue de fabriquer à partir du matériau de revêtement, des bandes individuelles d'une largeur déterminée souhaitée, qui s'étendent dans la direction de production (P).
EP07009785A 2006-05-17 2007-05-16 Tricot double parois comprenant de fils de fissure Active EP1860218B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006023356A DE102006023356A1 (de) 2006-05-17 2006-05-17 Abstandsgewirke mit Reißfäden

Publications (2)

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

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Country Status (4)

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

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DE102010010524A1 (de) 2010-03-05 2011-09-08 Müller Textil GmbH Abstandstextil, insbesondere Abstandsgewirke
DE202017004545U1 (de) 2017-08-22 2017-11-24 Gertex Textil Gmbh 3D textile Struktur mit Sollbruchlinien mit definierter Öffnung durch gleichartige Garntypen (Easy Weak)
DE202017004618U1 (de) 2017-08-22 2017-12-07 Gertex Textil Gmbh Textile 3D Struktur mit definierten Sollbruchstellen (ISO Weak)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010524A1 (de) 2010-03-05 2011-09-08 Müller Textil GmbH Abstandstextil, insbesondere Abstandsgewirke
DE102010010524B4 (de) * 2010-03-05 2013-11-07 Müller Textil GmbH Abstandstextil, insbesondere Abstandsgewirke
DE202017004545U1 (de) 2017-08-22 2017-11-24 Gertex Textil Gmbh 3D textile Struktur mit Sollbruchlinien mit definierter Öffnung durch gleichartige Garntypen (Easy Weak)
DE202017004618U1 (de) 2017-08-22 2017-12-07 Gertex Textil Gmbh Textile 3D Struktur mit definierten Sollbruchstellen (ISO Weak)
DE102018116321A1 (de) 2017-08-22 2019-02-28 Gertex Textil Gmbh 3D textile Struktur mit Sollbruchlinien mit definierter Öffnung durch gleichartige Garntypen (Easy Weak)
DE102018116322A1 (de) 2017-08-22 2019-02-28 Gertex Textil Gmbh Textile 3D Struktur mit definierten Sollbruchstellen (ISO Weak)

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US20080072627A1 (en) 2008-03-27
US7418837B2 (en) 2008-09-02
EP1860218A1 (fr) 2007-11-28
DE502007000437D1 (de) 2009-04-02
DE102006023356A1 (de) 2007-11-22
ATE423233T1 (de) 2009-03-15

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