US20180216262A1 - Multilayered Woven Fabric as well as Corresponding Production Method - Google Patents

Multilayered Woven Fabric as well as Corresponding Production Method Download PDF

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Publication number
US20180216262A1
US20180216262A1 US15/748,325 US201615748325A US2018216262A1 US 20180216262 A1 US20180216262 A1 US 20180216262A1 US 201615748325 A US201615748325 A US 201615748325A US 2018216262 A1 US2018216262 A1 US 2018216262A1
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Prior art keywords
warp threads
warp
threads
woven fabric
heddle
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US15/748,325
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English (en)
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Andreas Rutz
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Lindauer Dornier GmbH
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Lindauer Dornier GmbH
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Assigned to LINDAUER DORNIER GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG reassignment LINDAUER DORNIER GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUTZ, ANDREAS
Publication of US20180216262A1 publication Critical patent/US20180216262A1/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C9/00—Healds; Heald frames
    • D03C9/02—Healds
    • D03C9/024—Eyelets
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D15/0011—
    • D03D15/0088—
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
    • D03D15/267—Glass
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
    • D03D15/275—Carbon fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
    • D03D15/46—Flat yarns, e.g. tapes or films
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/573—Tensile strength
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/008—Looms for weaving flat yarns
    • 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
    • D10B2101/00—Inorganic fibres
    • D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
    • D10B2101/06—Glass
    • 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
    • D10B2101/00—Inorganic fibres
    • D10B2101/10—Inorganic fibres based on non-oxides other than metals
    • D10B2101/12—Carbon; Pitch
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
    • 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
    • D10B2505/02—Reinforcing materials; Prepregs

Definitions

  • the invention relates to a multilayered woven fabric of warp and weft threads as well as a method for the production of such a multilayered woven fabric.
  • the U.S. Pat. No. 1,802,907 A discloses a weaving method with weaving heddles, which comprise pairs of heddle eyes that are elongated in the vertical direction and are arranged in alignment for loose ground warp threads, whereby respectively between two of such pairs, a heddle eye of small height is provided in the middle or center of the heddle for a pile warp.
  • weaving heddles which comprise pairs of heddle eyes that are elongated in the vertical direction and are arranged in alignment for loose ground warp threads, whereby respectively between two of such pairs, a heddle eye of small height is provided in the middle or center of the heddle for a pile warp.
  • the heddles disclosed in the U.S. Pat. No. 1,802,907 A are especially suitable for use for the double plush weaving.
  • the multilayered or multi-ply construction with different materials especially with third warp threads lying between the first and second warp threads
  • the most varied woven fabric constructions with correspondingly different characteristics and fields of application are realizable.
  • the first and second warp threads can have physical characteristics very different from the third warp threads, such as for example different mechanical characteristics with respect to e.g. tearing or breaking strength, different thermal behavior, different chemical resistance, etc.
  • the multilayered woven fabric can be utilized for the most varied or different applications.
  • the third warp threads contain a high performance material, for example carbon or glass.
  • a high performance material for example carbon or glass.
  • Carbon and glass fibers are usually embedded in a synthetic plastic matrix, so that the third warp threads in this case consist of a composite material.
  • Carbon fibers are characterized by an extreme strength and stiffness with simultaneous low weight.
  • the woven fabric according to the invention can be given a very high tensile strength through the use of carbon.
  • the warp threads containing a high performance material or consisting of a high performance material are also referred to as reinforcement threads.
  • the third warp threads are embodied as tapes or rovings.
  • Tapes are spread thread collections of essentially parallel-extending threads that are adhesively bonded with one another, whereby the tapes comprise a greater width than height. Tapes are thus robust and economical surfacial patterns for especially technical applications.
  • a bundle, cord or multi-filament yarn of parallel arranged filaments (endless fibers) is designated as a roving, which is predominantly used in the production of fiber composite plastics or fiber reinforced plastics (FRP).
  • the cross section of a roving is usually elliptical or rectangular. Most commonly filaments of glass, aramid or carbon are grouped together as rovings.
  • the first and/or the second warp threads contain at least one thermoplastic material.
  • the first and/or the second warp threads consist completely of at least one thermoplastic material.
  • the thermoplastic material can be melted, whereby the molten material then preferably permeates between the fibers of the high performance material.
  • a woven fabric can be realized, which on the one hand has excellent formability, and on the other hand comprises a very high tensile strength due to the internally-lying third warp threads.
  • the invention also makes possible the production of a formable or reformable woven fabric, because the plastic matrix of the first and/or second warp threads again becomes soft with a larger heat application.
  • woven fabrics according to the invention can be formed or shaped to any desired new geometries by hot forming tools.
  • Woven fabrics according to the invention are also well recyclable, because the carbon or glass fibers can be easily separated from the plastic matrix by heating.
  • composite materials such as for example CFP (carbon fiber reinforced plastic), which consists of carbon fibers embedded or potted in a liquid plastic matrix (usually thermosetting plastics).
  • the woven fabric according to the invention is, for example, heated from both sides of the woven fabric, then the same heating temperatures can be used.
  • a symmetrical layer construction of the woven fabric for example outer first and second warp threads of the same material, same geometry and same thickness as well as internally-lying third warp threads, a woven fabric with well predictable shape and mechanical characteristics can be realized in a relatively simple manner.
  • the first and second warp threads are embodied as tapes. This especially applies to the case that the third warp threads are similarly embodied as tapes.
  • the multilayered woven fabric consists exclusively of tapes. Especially preferably, binding threads for holding together the woven fabric are not utilized.
  • the weft threads contain at least one thermoplastic material.
  • the weft threads consist entirely of at least one thermoplastic material.
  • the weft threads can similarly be a part of the thermoplastic matrix that covers the third warp threads.
  • the third warp threads can be completely covered by thermoplastic material at least completely from above and from below, namely if the first and second warp threads as well as the weft threads all consist of one or more thermoplastic materials.
  • the at least one thermoplastic material is preferably selected from the group that encompasses the following materials, among others: olefin homo- or copolymers, for example polyethylene (PE) or polypropylene (PP), polyamide (PA), polyurethane (PU), or other thermoplastic materials. Among these are included e.g. acrylonitrile butadiene styrene (ABS), polylactate (PLA), polymethylmethacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polystyrene (PS), polyetheretherketone (PEEK) and polyvinyl chloride (PVC).
  • olefin homo- or copolymers for example polyethylene (PE) or polypropylene (PP), polyamide (PA), polyurethane (PU), or other thermoplastic materials.
  • ABS acrylonitrile butadiene styrene
  • PLA polylactate
  • PMMA polymethylmethacrylate
  • PC polycarbonate
  • PET
  • the first, second and third warp threads and preferably also the weft threads comprise such a width and are woven into the woven fabric in such a manner so that the third warp threads are completely covered from below and above by the first and second warp threads as well as the weft threads. In this case, all areas of the third warp threads are covered.
  • thermoplastic first and second warp threads as well as weft threads on the one hand, and third warp threads of a high performance material on the other hand, a closed formed part can be realized (by heating the woven fabric, reforming and cooling), in which all of the high performance fibers are enclosed. Only thermoplastic material is visible from both sides of the woven fabric.
  • the first and second warp threads are at least exactly as wide as the third warp threads.
  • the first and second warp threads cover, preferably completely, the third warp threads in the top plan view and in the bottom plan view.
  • the first and/or the second warp threads preferably form the outermost woven fabric structures
  • the third warp threads preferably form the internally-lying woven fabric structure of a woven fabric constructed with three layers.
  • woven fabrics with more than three layers are also possible.
  • the first warp threads form a layer A
  • the second warp threads form a layer B
  • the third warp threads form a layer C
  • third, fourth and fifth warp threads form layers C, C′, C′′, etc.
  • the following layer constructions are possible: A-C-C′-B, A-C-C′-C′′-B.
  • the layers A and B can consist of warp threads of the same quality or characteristic with respect to the material, especially a thermoplastic material, and geometry. It is also possible that the third, fourth, etc. warp threads C, C′, etc. consist of the same or of different high performance materials or respectively contain such. In further embodiments, for example, the third and fifth warp threads C contain a high performance material and fourth warp threads contain a thermoplastic material.
  • the invention especially makes possible a woven fabric with third warp threads of a composite material (for example carbon fibers or glass fibers, etc., saturated or impregnated in plastic or coated with plastic) in the form of rovings or tapes, and furthermore first and second warp threads of thermoplastic tapes (PET, PP, PA etc.).
  • a composite material for example carbon fibers or glass fibers, etc., saturated or impregnated in plastic or coated with plastic
  • first and second warp threads of thermoplastic tapes PET, PP, PA etc.
  • the composite material is preferably completely covered from above and below by thermoplastic material in the form of at least the first and second warp threads as well as the weft threads.
  • Respectively at least one warp thread is guided through each one of the heddles that are thusly arranged respectively one behind another, whereby several warp threads are guided in the warp direction above one another, and thereby respectively form a warp thread stack (a “warp thread stack” is herein defined as an arrangement of several warp threads over one another).
  • a “warp thread stack” is herein defined as an arrangement of several warp threads over one another.
  • warp threads extend registered or aligned above one another.
  • registered herein means that—as seen from above—all warp threads guided above one another of a row of heddles arranged behind or after one another, lie within the width of the widest warp thread, generally a tape. Basically, however, an offset with an only partial registration of two or more warp threads guided above one another is also possible.
  • these heddles are individually positionable and therewith also the warp threads guided by these heddles.
  • different openings or loom sheds between the warp threads running above one another are realizable, through which the weft threads can then be inserted.
  • Such openings are functionally comparable with the loom sheds known from the prior art, because in both cases warp threads (in the case according to the invention warp threads lying above one another, and in the known case warp threads lying next to one another) are moved apart from one another in the Z-direction, in order to guide through a weft thread.
  • heddles for respectively one warp thread stack are arranged behind one another, through which at least a total of three warp threads are guided in the warp direction above one another, whereby the heddles, through alternating upward and downward motion, guide the warp threads together and apart, in order to be able to carry out corresponding weft insertions.
  • a plurality of such rows of three (or more) heddles arranged behind one another in the warp direction is provided in the weft direction.
  • the warp thread stacks present next to one another in the weft direction are moved relative to one another corresponding to the weave pattern to be achieved, so that the loom sheds, which are achieved by the repeated upward and downward movement of the heddles arranged in the warp direction in a row behind or after one another, between the warp threads of the respective warp thread stacks, and the sheds achieved thereby in the weft direction between the warp thread stacks arranged after one another in the weft direction, are matched or adapted to one another, especially preferably with the aid of an electronic machine control.
  • this rear heddle comprises an elongated hole that extends in the Z-direction with a greater height than the stated heddle eye of the rear heddle, whereby this elongated hole is then arranged above or below the stated heddle eye.
  • the elongated hole of the rear heddle serves for the position-fixed or deflection-free passage of at least the stated first warp thread.
  • the middle heddles preferably respectively guide a third warp thread, for which each middle heddle preferably respectively comprises a corresponding heddle eye for guiding and deflecting such a third warp thread.
  • these heddles respectively guide a third warp thread, which extends in the Z-direction always between the respective first and second warp threads of the same warp thread stack.
  • the weaving machine according to the invention is embodied as a Jacquard weaving machine, wherein the heddles are individually movable through use of a control.
  • the invention similarly encompasses a formed or shaped structural component that has been produced with the above described method.
  • a formed structural component can, for example, be utilized for exterior skins in the vehicle and aircraft construction field.
  • FIG. 2 the three heddles of the FIG. 1 arranged behind one another (schematic illustration);
  • FIG. 3 a - d the three heddles of the FIG. 2 with threaded-in warp threads in four different positions;
  • FIG. 4 a - d the schematic weave binding or interlacing principle of a first woven fabric according to the invention with six exemplary weft threads S 1 -S 6 ( FIG. 4 a ) as well as a top plan view ( FIG. 4 b ) and a view of the rear side ( FIG. 4 c ) of this woven fabric as well as an illustration of the binding-in or interlacing of the third warp threads in this woven fabric ( FIG. 4 d );
  • FIG. 4 e a cut-out section of a cross-sectional illustration through the woven fabric of the FIGS. 4 a - 4 d;
  • heddles 1 , 2 , 3 are illustrated arranged corresponding to the invention behind or after one another in the warp direction K, whereby the front heddle 1 is positioned toward the machine outlet and the rear heddle 3 is positioned toward the machine inlet.
  • the heddles 1 - 3 are presently represented perspectively; in reality they are oriented perpendicularly to the warp direction K.
  • heddles 1 - 3 are presently represented perspectively; in reality they are oriented perpendicularly to the warp direction K.
  • heddles 1 - 3 are presently represented perspectively; in reality they are oriented perpendicularly to the warp direction K.
  • heddles 1 - 3 are presently represented perspectively; in reality they are oriented perpendicularly to the warp direction K.
  • heddles 1 - 3 are presently represented perspectively; in reality they are oriented perpendicularly to the warp direction K.
  • heddles 1 - 3 are presently represented perspective
  • the position of the heddle eyes 21 - 23 is selected in such a manner so that the warp threads 11 - 13 do not extend in the same horizontal plane (and thereby being in the way of each other), but rather so that—with an equally large deflection of the heddles 1 - 3 —a small vertical spacing distance is present between them.
  • the three heddles arranged one after another in warp direction are once again shown in FIG. 2 , but in this illustration respectively rotated by 90° and shown with a spacing distance relative to one another (in reality only the narrow sides of the heddles 1 - 3 would be visible in this view). From this it can be seen that the three heddle eyes 21 - 23 are offset in height, so that the three warp threads 11 - 13 maintain the mentioned vertical spacing from one another, so that it does not give rise to mechanical tensions or too great friction between them. Moreover, in FIG. 2 , the warp direction K and the weft direction S are drawn-in, which together define the weft insertion plane SE.
  • the weft direction S extends perpendicularly to the warp direction K, whereby the three heddles 1 - 3 are arranged behind or after one another in the warp direction K, and usually several rows of heddles arranged behind one another in the weft direction S (that is to say perpendicularly to the drawing plane) are present.
  • the warp threads 12 , 13 are threaded through the upper elongated hole 31 a of the front or forwardmost heddle 1 , while the lower elongated hole 31 b is empty.
  • the second warp thread 13 runs through the upper elongated hole 32 a of the middle heddle 2 , while the first warp thread 11 is guided through the lower elongated hole 32 b thereof.
  • the two first and second warp threads 11 , 12 are guided through the lower elongated hole 33 b of the rear heddle 3 , while the upper elongated hole 33 a is empty.
  • FIG. 1 it is illustrated that the two front heddles 1 , 2 are moved into a lower position, while the rear heddle 3 are located in an upper position.
  • the warp thread 12 (or 13 ) moved in the heddle eye 22 (or 23 ) of this heddle 2 (or 3 ) is also correspondingly deflected, while the other two warp threads 11 , 13 (or 11 , 12 ) are guided through the elongated holes 32 a, 32 b (or 33 a, 33 b ) of the corresponding heddle 2 (or 3 ) without being deflected.
  • warp threads 11 , 13 (or 11 , 12 ) not guided through the heddle eye 22 (or 23 ) of the upwardly or downwardly moved heddle 2 (or 3 ) thus remain stationary or position-fixed due to the configuration or embodiment of the elongated holes 32 a, 32 b (or 33 a, 33 b ) of this heddle 2 (or 3 ), that is to say these warp threads are not deflected.
  • the warp thread 12 is also correspondingly moved upwardly.
  • FIG. 3 b the rear heddle 3 is deflected upwardly, whereby a loom shed 36 opens between the uppermost warp thread 13 threaded through the heddle eye 23 of the heddle 3 and the other warp threads 11 , 12 , through which a weft thread 16 (not shown) can be inserted.
  • the shed formation in the weft thread plane and the loom shed formation according to the invention can be adapted or tuned to one another, in order to obtain a complex woven fabric.
  • the loom shed 35 that is upwardly open in FIG.
  • FIG. 3 c additionally also the heddle 2 is lifted upwardly, whereby the warp thread 12 threaded through its heddle eye 22 is correspondingly carried upwardly with it, so that a different loom shed 37 opens between the warp threads 11 and the warp threads 12 , 13 for a weft insertion.
  • FIG. 3 d all so three heddles 1 - 3 and therewith all warp threads 11 - 13 are illustrated in the upper position, whereby—for the illustrated warp thread stack—a downwardly open loom shed 38 results.
  • n+1 positions can be realized when n is the number of the heddles arranged behind one another.
  • the warp threads 11 - 13 are moved downwards preferably in the reversed sequence—first lowering the heddle 1 , then the heddle 2 , then the heddle 3 . Therefore a reciprocal “overtaking” of the warp threads 11 - 13 relative to one another is not possible; their sequence from the top to the bottom always remains the same.
  • both rear heddles 2 , 3 can be lifted simultaneously.
  • the variability of achievable weave patterns can be further increased.
  • FIG. 4 a the schematic weave binding or interlacing principle of a woven fabric with six exemplary weft threads S 1 -S 6 is illustrated, while adjacently running warp thread rows are referenced by the letters A-F.
  • This illustration gives—as seen from the top to the bottom—the weft threads S 1 -S 6 lying behind one another in the warp direction (into the illustration plane).
  • the weft thread S 1 is guided through the shed first, thereafter the weft thread S 2 , etc.
  • two different warp thread stacks as an example are referenced with the reference number 15 .
  • FIG. 4 a shows respectively the orientation and position of the individual warp threads 11 , 12 , 13 , which are all embodied as tapes here, with reference to the respective weft thread 16 , which is similarly embodied generally as a tape.
  • FIGS. 4 b - d show the weave pattern of the woven fabric 18 corresponding to FIG. 4 a , and particularly FIG. 4 b shows, a top plan view, FIG. 4 c shows a view from the backside, and FIG. 4 d shows the binding-in of the third warp threads 12 into the woven fabric 18 .
  • FIGS. 4 b - d all warp threads 11 - 13 and the weft threads 16 extend in the drawing plane.
  • FIG. 4 d the binding-in or interlacing of the third warp threads 12 into the woven fabric 18 with reference to the weft threads 16 is illustrated in a top plan view (the first and second warp threads 11 , 13 are not represented).
  • the upward and downward motion of the heddles 1 , 2 , 3 can be controlled in such a manner so that the weft thread 16 is not visible in the finished woven fabric 18 , neither from the front side nor from the back side, in at least one weft thread row.
  • several of such weft thread rows that do not fix the woven fabric can be present, which are separated from one another by conventional weft thread rows that bind the woven fabric.
  • FIGS. 5 a - d A second possible weave binding or interlacing principle for a woven fabric 18 according to the invention is illustrated in FIGS. 5 a - d, wherein the same reference numbers as in the remaining figures have been used.
  • FIGS. 5 a - d show the binding-in or interlacing of the third warp threads 12 into the woven fabric 18 in relation to the weft threads 16 , whereby the first and second warp threads 11 , 13 are not illustrated again here.
  • the first, second and third warp threads 11 , 13 , 12 as well as the weft threads in the embodiments illustrated in the figures are especially preferably embodied as tapes or rovings.
  • the third warp threads 12 especially contain a high performance material, for example carbon or glass.
  • the first and the second warp threads 11 , 13 as well as advantageously also the weft threads 16 in the embodiments illustrated in the figures especially preferably contain at least one thermoplastic material.
  • they consist completely of at least one thermoplastic material, for example of an olefin homo- or copolymer, for example polyethylene (PE) or polypropylene (PP), of polyamide (PA), polyurethane (PU), acrylonitrile butadiene styrene (ABS), polylactate (PLA), polymethylmethacrylate (PMMA), polycarbonates (PC), polyethylene terephthalate (PET), polystyrene (PS), polyetheretherketone (PEEK) and/or polyvinyl chloride (PVC).
  • PE polyethylene
  • PP polypropylene
  • PA polyamide
  • PU polyurethane
  • ABS acrylonitrile butadiene styrene
  • PLA polylactate
  • PMMA polymethylmethacrylate
  • PC polycarbonates
  • first, second and third warp threads 11 , 13 , 12 as well as the weft threads 16 comprise such a tape width so that the third warp threads 12 are completely covered by the first and second warp threads 11 , 13 as well as the weft threads 16 .
  • first and second warp threads 11 , 13 as well as the weft threads 16 are at least exactly as wide as the third warp threads 12 and completely cover these in the top plan view and in the bottom plan view.
  • thermoplastic tapes in the form of first and second warp threads cover, from above and below, at least third warp threads in the form of tapes or rovings with a high performance material (preferably a composite material with carbon or glass in a synthetic plastic matrix, e.g. a carbon tape).
  • a high performance material preferably a composite material with carbon or glass in a synthetic plastic matrix, e.g. a carbon tape.
  • the individual layers of the tapes forming the first, second and third warp threads are actuated via the heddles and form the respective loom shed (also generally named opening above), into which the weft thread that similarly preferably consists of thermoplastic material is inserted.
  • the composite tape consisting of the third warp threads or the roving (namely the carbon or carbon fibers) can be bound into the thermoplastic woven fabric with more or less flotation.
  • an exact fiber-matrix ratio can be selected.
  • the resulting non-consolidated textile construction or textile fabric is flexible, whereby the composite components are fixed in their position or orientation by the binding or interlacing of the woven fabric.
  • the woven fabric is drapable as far as the binding or interlacing allows.
  • the woven fabric is fixed in the desired form or shape.
  • thermoplastic components melt and the molten material permeates, saturates or impregnates the composite fibers, that is to say for example carbon or glass fibers.
  • the composite fibers that is to say for example carbon or glass fibers.
  • warp threads that do not form the uppermost and lowermost warp threads (the first and second warp threads) of a warp thread stack may contain a thermoplastic material or also a different material as a high performance material.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Woven Fabrics (AREA)
  • Looms (AREA)
US15/748,325 2015-08-05 2016-07-12 Multilayered Woven Fabric as well as Corresponding Production Method Abandoned US20180216262A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015112896.9A DE102015112896B3 (de) 2015-08-05 2015-08-05 Mehrlagiges Gewebe sowie entsprechendes Herstellungsverfahren
DE102015112896.9 2015-08-05
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KR20180048631A (ko) 2018-05-10
AU2016303102A1 (en) 2018-02-22
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JP2018530679A (ja) 2018-10-18
CN108138391A (zh) 2018-06-08

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