WO2017032419A1 - Tiefziehteil sowie verfahren zur herstellung eines tiefziehteils - Google Patents
Tiefziehteil sowie verfahren zur herstellung eines tiefziehteils Download PDFInfo
- Publication number
- WO2017032419A1 WO2017032419A1 PCT/EP2015/069629 EP2015069629W WO2017032419A1 WO 2017032419 A1 WO2017032419 A1 WO 2017032419A1 EP 2015069629 W EP2015069629 W EP 2015069629W WO 2017032419 A1 WO2017032419 A1 WO 2017032419A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- deep
- layer
- spacer
- drawn part
- textile
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
- B29C51/004—Textile or other fibrous material made from plastics fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
- B29C51/145—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets having at least one layer of textile or fibrous material combined with at least one plastics layer
-
- 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
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/44—Furniture or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
-
- 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
- D10B2403/02—Cross-sectional features
- D10B2403/021—Lofty fabric with equidistantly spaced front and back plies, e.g. spacer fabrics
Definitions
- the invention relates to a deep-drawn part and a method for producing a deep-drawn part.
- Deep-drawn parts are known from practice and are used inter alia as a housing, trim parts of all kinds, packaging and other layered functional elements.
- the deep-drawn part itself should not form the visible surface, for which purpose subsequently a cover layer or initially only an intermediate layer is laminated on. So it is common, for example, in the interior trim of motor vehicles, that deep-drawn parts on the headliner, the panels of the doors, on the dashboard or on the pillars of the vehicle with a high-quality cover layer, such as a textile material or leather is provided.
- a soft, flexible intermediate layer is frequently also provided, for which purpose, for example, a spacer valve, in particular a spacer fabric or a foam layer, can be used.
- the lamination of several different materials turns out to be expensive in practice, so that there is a corresponding need for a simplification of the manufacturing process and a reduction in costs.
- EP 0 103 129 B1 discloses a flexible spacer fabric which is adapted to a certain extent in its shape.
- a spacer knit fabric in a corresponding shape under the action of temperature is made cupped.
- Such a deformed spacer fabric for garments is also known from DD 129 155.
- a stiffening of a spacer knitted fabric by curing by means of resin is known from DE 3 813 741 C1, wherein the entire spacer knitted fabric is given high rigidity and dimensional stability. The soft, elastic properties of the spacer knit are completely lost.
- EP 1 910 597 B1 discloses a method for producing a form-fitted spacer knitted fabric, in which the knitted spacer fabric is heated in a region to be deformed and cooled in a region which is not to be deformed. By heating and cooling, the boundaries of the deformed portions relative to the area of the spacer knit can be clearly separated from each other. In the regions to be deformed, the spacer knitted fabric is deformed as a whole, as is already known from the production of clothing parts and in particular corsetry articles from the abovementioned EP 0 103 129 B1 or DD 129 155.
- the present invention is based on the object to provide a deep-drawn part, which is characterized by good mechanical properties and can be easily manufactured against this background.
- the deep-drawn part should be equipped in a particularly simple manner with a soft haptic layer.
- a method for producing such a deep-drawn part is to be specified.
- the object of the invention and solution of the problem are a deep-drawn part according to claim 1 and a method for producing a deep-drawn part according to claim 8.
- the object of the invention is therefore first a deep-drawn part, which is preferably formed entirely from a spacer textile, in particular a spacer fabric.
- the deep-drawn part comprises a flexible textile layer formed from threads, in particular a knitted fabric as a soft haptic layer, a stiff compared to the flexible textile layer carrier layer, which is formed by an at least partial melting of a second textile layer, in particular knitted fabric, and spacer threads between the textile layer and the carrier layer , wherein the spacer threads are preferably technically connected to the flexible textile layer and integrally bonded in the carrier layer.
- the deep-drawn part can be formed entirely from a suitably adapted spacer textile, wherein the deep-drawing process is carried out in such a way and the spacer textile is designed so that the rigid carrier layer is produced on one side to form a strongly asymmetric structure, while on the other side there arranged first textile layer retains its soft and flexible properties.
- the carrier layer Through the carrier layer, the deep-drawn part keeps its three-dimensional shape, while the
- Spacer threads and the flexible textile layer form a particularly pleasant soft and resilient, the support layer opposite surface.
- the support layer opposite surface.
- the rigid carrier layer is formed by an at least partial melting of a second textile layer, in particular a knitted fabric layer.
- the course of the spacer threads also corresponds to the carrier layer of the usual structure in a conventional spacer fabric, but the original existing thread structure of the threads initially forming the corresponding textile layer is at least partially canceled, so that the spacer threads without the addition of another resin or an additional stiffening material materially are attached.
- the initially soft and flexible second textile layer is converted by the at least partial melting into a stiff layer which is capable of permanently giving the deep-drawn part a three-dimensional shape.
- the present invention is based in this context on the knowledge that between the first textile layer and the second textile layer, from which the carrier layer is formed during deep drawing, there may be an asymmetry with regard to the materials and / or the effect of pressure and temperature during deep drawing got to.
- the carrier layer is formed from a polymer or at least contains a polymer which has a lower melting point than the threads of the flexible textile layer.
- a different temperature of mold halves of a thermoforming mold is then not absolutely necessary, but can also be optionally provided in the context of such a configuration.
- the corresponding textile layer can be formed, for example, from a melted thread or, at least in the case of a multi-thread system, have a melted thread which then at least partially melts when subjected to a corresponding temperature.
- the carrier layer is at least partially formed of multi-component fibers and / or multifilament yarn with different filaments.
- Multicomponent fibers can have two different sections or even more sections. Two different sections result in bicomponent fibers, with the sections arranged side by side.
- Particularly preferred is a core-shell structure, wherein the sheath is formed of low-melting polymer and the core has a higher melting temperature.
- a similar concept may be provided for a multifilament yarn with different filaments. Part of the filaments is then low melting while other filaments have a higher melting temperature.
- the textile layer which forms the carrier layer as a result of at least partial melting, does not completely melt and there is thus the risk that the spacer threads may detach from the melt.
- a deep-drawn part is to be formed, which is characterized on the support layer by a high strength and stability, so that this example, for interior trim, housing, panels of the A-, B- or C-pillar of a motor vehicle or to form a Seat shell is suitable.
- Other conceivable applications include furniture, in particular garden furniture, protectors for motorcycle clothing, workwear or sportswear, wall elements of functional parts such as strollers, child seats or the like.
- a corresponding stability can be achieved on the one hand by a corresponding basis weight of the carrier layer.
- the carrier layer may have a weight per unit area of between 10 g / m 2 and 1 000 g / m 2 .
- stable filaments may also be provided which effect stiffening or reinforcement.
- filaments may also be provided in the multicomponent fibers or in the multifilament yarn with different filaments filaments which are selected from a material selected from the group aramid fiber, carbon fiber , Basalt fiber and fiberglass.
- other reinforcing fibers are suitable.
- a multi-thread system described above for the textile layer forming the carrier layer during thermoforming corresponding fiber types can also be used.
- these additional threads, strands or filaments form a particularly stable, solid grid, whereby the deep-drawn part on the one hand heavy-duty and resistant and on the other hand, with a high dimensional stability maintains the predetermined by deep drawing form.
- threads can be incorporated, for example, as standing or weft threads, which may also be below the corresponding surface before melting.
- the total thickness of the deep-drawn part or of the spacer textile used for it is typically between 1 mm and 60 mm, preferably between 1.5 mm and 30 mm and in particular between 2 mm and 15 mm.
- the carrier layer with an area fraction of at least 50%, more preferably 70% and particularly preferably completely closed.
- the carrier layer formed by the melting of the corresponding textile layer then has a particularly dense, film-like structure, but the spacer threads are secure
- a hole structure may also be provided for the carrier layer if the corresponding textile layer is previously provided with a corresponding hole structure.
- the haptic layer forming textile layer is not limited in terms of their design and can either have a substantially closed mesh structure or a mesh structure with openings extending in the direction of production and across the production direction over several stitches.
- the invention also provides a method for producing the deep-drawn part described above.
- the method comprises the steps of forming, in particular, working a spacer textile with a first textile layer, a second textile layer and spacer threads between the textile layers, introducing the spacer textile into a thermoforming mold, deep-drawing the spacer textile in the thermoforming mold in such a way that only the second textile layer is at least partially melted and forms a carrier layer.
- the spacer fabric can be heat-set on a tenter frame prior to insertion into the thermoforming mold.
- care must be taken to ensure that the first and second textile layers are not melted, so that deep drawing into the desired shape can take place after that and the spacer textile can still be easily handled.
- heat setting the spacer fabric is heated so that the plastic of the threads is only soft without becoming molten.
- the spacer fabric can be processed without heat setting, the fixation of the article then takes place only during deep drawing.
- thermoforming it is also possible to preheat the spacer textile before thermoforming, so that the heat input necessary for the forming process and the formation of the carrier layer is reduced.
- the spacer textile is preferably deep-drawn in a thermoforming mold with two mold halves, wherein a gap remaining in the closed position between the mold halves is expediently greater than the thickness of the spacer fabric in the compressed state. This avoids that, in the case of a melting of one of the textile layers to form the carrier layer, the other textile layer provided as a haptic layer is also glued or wetted by the molten plastic.
- the gap remaining between the mold halves is at least 1 mm, more preferably at least 2 mm larger than the thickness of the spacer knit in a fully compressed state.
- solid, stable deep-drawn parts can be formed, which have as an integral part of a soft, supported by spacer threads haptic.
- a complex, subsequent laminating is not necessary, but the haptic layer can of course also be provided with a further covering layer, for example leather, artificial leather, fabric or the like.
- the carrier layer and the textile layer which is fabricated integrally therewith and supported by the spacer threads, as a haptic layer, there is also no danger of delamination-unlike laminating.
- FIG. 2 shows a deep-drawn part formed from the spacer fabric according to FIG. 1
- FIG. 3 a shows a schematic side view of that shown in FIG. 1
- thermoformed part formed therefrom is a schematic side view of the thermoformed part formed therefrom according to FIG. 2.
- FIG. 1 shows a spacer fabric designed as a spacer fabric 1, which according to the usual structure has a first knitted fabric 2, a second knitted fabric 3 and spacer yarns 4 between the two knitted fabrics 2, 3.
- the fabric layers 2, 3 are indicated only schematically
- the first knitted fabric layer 2 and the second knitted fabric layer 3 are formed of different polymeric materials for the respective yarns.
- the second knitted fabric layer 3 is designed so that it melts at least partially at a temperature at a lower temperature.
- the second knitted fabric layer 3 may be partially formed of multi-component fibers and / or multifilament yarns with different filaments, wherein multi-component fibers strands or in multifilament yarns with different filaments filaments are provided, which are selected from a material selected from the group aramid fiber, carbon fiber, basalt fiber and Fiberglass exist.
- At least two different thread systems can be used for the second knitted fabric.
- the basis weight of the carrier layer 3 ' can be, for example, between 10 g / m 2 and 1 000 g / m 2 without the spacer threads 4 incorporated therein.
- a corresponding deep-drawn part is shown by way of example in FIG. 2.
- the carrier layer 3 ' is responsible for the dimensional stability and stability of the deep-drawn part, while the first, via the spacer threads 4 supported on the carrier layer 3' knitted fabric 2 a soft haptic
- the carrier layer 3 ' is completely closed and forms a flat film structure, but the spacer threads 4 are securely anchored in the carrier layer 3'.
- FIG. 3a shows the structure of the spacer fabric before deep drawing.
- FIG. 3b shows the carrier layer 3 'formed by the melting of the second knitted fabric layer 3.
- the carrier layer 3 ' may also have pores or larger openings.
- the total thickness of the deep-drawn part according to FIG. 2 or the spacer fabric 1 according to FIG. 1 is typically between 1 mm and 60 mm.
- the deep-drawn part is suitable for a wide variety of applications. For example, this can be used to make cost-effective trim parts, seat shells, wall elements, protectors, reinforcement elements or the like.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Knitting Of Fabric (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2015/069629 WO2017032419A1 (de) | 2015-08-27 | 2015-08-27 | Tiefziehteil sowie verfahren zur herstellung eines tiefziehteils |
| DE112015006841.4T DE112015006841B4 (de) | 2015-08-27 | 2015-08-27 | Tiefziehteil sowie Verfahren zur Herstellung eines Tiefziehteils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2015/069629 WO2017032419A1 (de) | 2015-08-27 | 2015-08-27 | Tiefziehteil sowie verfahren zur herstellung eines tiefziehteils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017032419A1 true WO2017032419A1 (de) | 2017-03-02 |
Family
ID=54014813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/069629 Ceased WO2017032419A1 (de) | 2015-08-27 | 2015-08-27 | Tiefziehteil sowie verfahren zur herstellung eines tiefziehteils |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112015006841B4 (de) |
| WO (1) | WO2017032419A1 (de) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD129155A1 (de) | 1976-12-20 | 1978-01-04 | Siegfried Wolf | Verfahren und vorrichtung zum formen von bekleidungsteilen |
| DE3408769A1 (de) * | 1984-03-09 | 1985-09-12 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von faserverstaerkten formkoerpern und profilen |
| EP0103129B1 (de) | 1982-09-11 | 1986-04-16 | Arwed W. Fischer | Miederwarenteil, insbesondere Büstenhalter |
| DE3813741C2 (de) | 1988-04-23 | 1998-12-24 | Vorwerk Co Interholding | Bauteil auf Gewirkebasis und Verfahren zu seiner Herstellung |
| US20030059610A1 (en) * | 2001-05-14 | 2003-03-27 | Cargill, Limitd | Hybrid yarns which include plant bast fiber and thermoplastic fiber, reinforcement fabrics made with such yarns and thermoformable composites made with such yarns and reinforcement fabrics |
| EP1910597B1 (de) | 2005-06-24 | 2012-05-02 | Heinrich Essers GmbH & Co. KG | Verfahren zur Herstellung eines FORMANGEPASSTEn ABSTANDSGEWIRKEs |
| DE102011075720A1 (de) | 2011-05-12 | 2012-11-15 | Lisa Dräxlmaier GmbH | Trägerloses Interieurteil |
| DE102013102813A1 (de) * | 2013-03-19 | 2014-09-25 | Müller Textil GmbH | Abstandsgewirke sowie Verfahren zur Herstellung eines Abstandsgewirkeabschnitts |
| DE102013213681A1 (de) | 2013-07-12 | 2015-01-15 | F.S. Fehrer Automotive Gmbh | Verbundbauteil |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19931193C2 (de) | 1999-07-07 | 2003-04-24 | Stefan Mueller | Abstandsgewirke mit Luftverteilungswirkung |
| DE10359043B4 (de) | 2003-12-17 | 2010-02-11 | Sächsisches Textilforschungsinstitut e.V. | Verfahren zur Stabilisierung textiler Halbzeuge |
| DE102005010540A1 (de) | 2005-03-04 | 2006-09-07 | Mattes & Ammann Kg | Stromleitfähiges Gewirk oder Gestrick für Heizzwecke, seine Verwendung und Wirk- oder Strickmaschine |
| DE102006022494B4 (de) | 2006-05-13 | 2011-05-05 | Hänsel Textil GmbH | Textiler Einlagestoff |
| DE102014103861B4 (de) | 2014-03-20 | 2016-12-22 | Müller Textil GmbH | Abstandsgewirke sowie Verfahren zur Herstellung eines Abstandsgewirkes |
-
2015
- 2015-08-27 DE DE112015006841.4T patent/DE112015006841B4/de active Active
- 2015-08-27 WO PCT/EP2015/069629 patent/WO2017032419A1/de not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD129155A1 (de) | 1976-12-20 | 1978-01-04 | Siegfried Wolf | Verfahren und vorrichtung zum formen von bekleidungsteilen |
| EP0103129B1 (de) | 1982-09-11 | 1986-04-16 | Arwed W. Fischer | Miederwarenteil, insbesondere Büstenhalter |
| DE3408769A1 (de) * | 1984-03-09 | 1985-09-12 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von faserverstaerkten formkoerpern und profilen |
| DE3813741C2 (de) | 1988-04-23 | 1998-12-24 | Vorwerk Co Interholding | Bauteil auf Gewirkebasis und Verfahren zu seiner Herstellung |
| US20030059610A1 (en) * | 2001-05-14 | 2003-03-27 | Cargill, Limitd | Hybrid yarns which include plant bast fiber and thermoplastic fiber, reinforcement fabrics made with such yarns and thermoformable composites made with such yarns and reinforcement fabrics |
| EP1910597B1 (de) | 2005-06-24 | 2012-05-02 | Heinrich Essers GmbH & Co. KG | Verfahren zur Herstellung eines FORMANGEPASSTEn ABSTANDSGEWIRKEs |
| DE102011075720A1 (de) | 2011-05-12 | 2012-11-15 | Lisa Dräxlmaier GmbH | Trägerloses Interieurteil |
| DE102013102813A1 (de) * | 2013-03-19 | 2014-09-25 | Müller Textil GmbH | Abstandsgewirke sowie Verfahren zur Herstellung eines Abstandsgewirkeabschnitts |
| DE102013213681A1 (de) | 2013-07-12 | 2015-01-15 | F.S. Fehrer Automotive Gmbh | Verbundbauteil |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015006841B4 (de) | 2024-08-29 |
| DE112015006841A5 (de) | 2018-05-17 |
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