EP3676085A1 - Light-permeable multi-layer composite film - Google Patents
Light-permeable multi-layer composite filmInfo
- Publication number
- EP3676085A1 EP3676085A1 EP18730354.0A EP18730354A EP3676085A1 EP 3676085 A1 EP3676085 A1 EP 3676085A1 EP 18730354 A EP18730354 A EP 18730354A EP 3676085 A1 EP3676085 A1 EP 3676085A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- composite film
- light
- translucent
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 239000004753 textile Substances 0.000 claims abstract description 61
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- 239000011248 coating agent Substances 0.000 claims abstract description 15
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- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 9
- 238000005286 illumination Methods 0.000 claims abstract description 8
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- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24322—Composite web or sheet
- Y10T428/24331—Composite web or sheet including nonapertured component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T428/24612—Composite web or sheet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T442/102—Woven scrim
- Y10T442/164—Including a preformed film, foil, or sheet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/102—Woven scrim
- Y10T442/164—Including a preformed film, foil, or sheet
- Y10T442/169—Polyolefin film or sheet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T442/3089—Cross-sectional configuration of strand material is specified
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3325—Including a foamed layer or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3854—Woven fabric with a preformed polymeric film or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3854—Woven fabric with a preformed polymeric film or sheet
- Y10T442/387—Vinyl polymer or copolymer sheet or film [e.g., polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/40—Knit fabric [i.e., knit strand or strip material]
- Y10T442/425—Including strand which is of specific structural definition
- Y10T442/431—Cross-sectional configuration of strand material is specified
Definitions
- the invention relates to a translucent multi-layer composite film made of plastic as a surface coating of an article, wherein the composite film has at least one outer and optionally provided with a coating at least partially translucent or transparent cover layer and at least one rear side of the cover layer.
- Films in the form of multilayer composite films for coating or surfaces of any objects are widely known in the art, including in the surface design of furniture and interior trim parts of vehicles, especially motor vehicles.
- flexible, grained, patterned or finely structured plastic skins are used as surfaces for the interior lining, here often as relatively soft foamed-in films with a pleasant feel, for example for the paneling of dashboards or the inner shells of doors, etc.
- the multi-layered construction usually consists of an upper cover or decorative layer provided with the embossed or molded surface, and one or more sub-layers.
- the cover layer is usually provided with a lacquer layer and can also be colored.
- the CA 2 454 911 AI discloses a vehicle roof as a molded part, which is provided with strip-shaped electroluminescent elements.
- the headliner consists of a molded carrier which is pressed with a coating film to form a component.
- first electroluminescent elements are positioned in the carrier, guided with their connecting cables through the carrier and then covered with the applied coating film, fixed and pressed.
- the disadvantage here is the relatively complicated construction and production.
- the electroluminescent elements behind the decorative surface /
- DE 10 2005 038 680 A1 discloses a component of a motor vehicle having a three-dimensional surface which has an electroluminescent layer and is back-injected with thermoplastic for fixing the component form. This essentially smaller non-flexible lighting body, such as. B. illuminated
- Tactile switch or bulb manufactured. The production of larger parts designed with this training rather difficult.
- an outer functional or carrier layer of the electroluminescent element is made of plastic material which is substantially identical to the powdered plastic material of the molded skin and applied to the not yet fully cured and cooled molded skin.
- DE 10 2014 005 663 AI discloses a light source with a textile fabric for generating light effects, wherein the textile
- the object was to provide a film for the surface coating of objects, which functionalization in the form of a
- Including lighting or the delivery of light signals in which it is possible to incorporate in a surface material decorative effect lighting or light pattern representation and this has a high efficiency in the ratio of light input or supply to the light output or luminosity.
- At least one flat textile layer is arranged on the back side of the cover layer, preferably a textile layer which has threads of polyethylene terephthalate (PET) and / or polyvinylidene fluoride (PVDF), the textile layer comprising light
- PET polyethylene terephthalate
- PVDF polyvinylidene fluoride
- the transmission, refraction and reflection properties are designed so that an illumination of the textile layer, in particular a back-side illumination of the textile layer, leads to a passage of light, preferably to a uniform passage of light through the cover layer.
- the term "uniformed” should be understood to mean that in relation to a particular
- the optical properties of the textile layer can also be adjusted so that over different surface areas a different intensity of illumination or a different strong light emission from the cover layer is formed.
- a wave structure or other decorative designs of the lighting can be adjusted.
- An illumination of the textile layer can be done either by, for example
- the entire component on which the multilayer composite film is as a surface coating used as a luminous body or signal body and turned on or off as desired.
- the technical idea underlying the idea is therefore that not only a translucent layer, here the cover layer, is back-lit, but that another optically active textile layer is placed behind the layer to be screened, which by their special optical properties leads that ultimately a certain and pleasant light distribution and a fluoroscopy of the outer cover layer is achieved.
- the invention is directed essentially to flexible multilayer composite films made of plastic, which usually also include a foam layer in their composite or are foamed back in order to produce a pleasant "feel.
- Such translucent, flexible films are of course already well suited as a surface coating of an object already because they can adapt by their flexibility to all possible surface formations and three-dimensional designs of an article, for example, when adhered to surfaces of objects become.
- the threads of the textile layer consist of a substantially crystal clear or translucent adjusted polyethylene terephthalate (PET), which depending on the processing conditions as partially crystalline (PET-C) or amorphous
- PET-A Polyethylene terephthalate
- PVDF polyvinylidene fluoride
- PVDF Since this material exhibits strong piezoelectric effects after appropriate polarization, at least in comparison with other polymers, its optical properties can even be changed when a voltage is applied to the textile layer.
- Filament geometry, thread density and thread structure is influenced or determined, preferably by an at least partially of a round cross-section
- deviating thread cross section For example, by special geometrical configurations of the thread cross-section, such as by hexagonal threads formed in the yarn cross-section, make strong diffused surfaces.
- a further advantageous embodiment is that in the textile layer material or thread densifications, thread entanglements or Fadenentfiechtept are introduced, which influence the transmission, refraction and reflection properties or to change.
- thread densifications or "balls" provided in the luminous area can produce a different passage of light through the cover layer than areas with little textile threads in the optically active layer, so that any patterning to be designed results.
- the textile layer consists at least partially of a knitted fabric or of a fabric of warp and weft threads.
- the textile layer preferably has at least one such fabric layer.
- a further embodiment which consists in that the knitted fabric or the fabric layer consists of textured threads or textured warp and / or weft threads.
- the knitted fabric or the fabric layer consists of textured threads or textured warp and / or weft threads.
- originally smooth filament yarns are provided with a kind of crimped structure, after which the fabric then acquires a "texture.” This also promotes a rather diffuse passage of light and thus an opaque appearance of the covering layer.
- a further advantageous embodiment is that the partially translucent or transparent cover layer is formed with a texture or a relief, wherein the cover layer is reduced in a plurality of subregions or surface points to a residual layer thickness.
- the cover layer is processed with appropriately trained embossing tools or needle wheels, for example, with approximately circular or diamond-shaped needle tips that a kind of hole pattern with not reaching through the total thickness of the top layer holes produced, from the outside or in section approximately comparable Blind holes.
- Semi-perforation or decorative perforation describes the appearance of a perforation, but without real perforation of the surface or the
- the material of the cover layer can be partially or locally influenced.
- the degree of crystallization or the crosslinking or polymerization in the cover layer material at certain locations or areas for example by irradiation with a laser of a suitable frequency.
- a stronger cross-linking of the chains results in a different behavior in the light transmission / transmission of light.
- a further advantageous embodiment consists in that the cover layer is perforated, preferably provided in the form of linear or sheet-like perforation patterns. This makes it easy to create decorative patterns by:
- a line-shaped perforation is carried out so as to give letters, pictograms or images.
- An example of such a decorative pattern would be a multilayer composite film for a vehicle headlining the patterns of
- Constellations are introduced into the cover layer by perforation.
- cover layer consists essentially of a thermoplastic polyolefin (TPO).
- TPO thermoplastic polyolefin
- a further advantageous embodiment is that the cover layer arranged a top coat of polyvinyl chloride (PVC) and a back of the top coat
- PVC polyvinyl chloride
- Layers are not fixed, which are assembled together with the optically active textile layer to form a laminate or to one of the composite layer film.
- Multi-layer composite film is provided.
- a dashboard can be very easily provided with such a multi-layer composite film.
- a light source is arranged between the carrier and the multilayer composite film,
- LED lights can be either with a rear distance to the optically effective be arranged textile layer, so about on a back of the textile layer arranged grid with appropriate height, or else be attached directly to the back of the textile layer.
- light guides can be used, which either radiate directly laterally or rearwardly in the textile layer or can also be arranged at a distance from the back of the textile layer.
- FIG. 1 shows a section of a motor vehicle interior trim part, which is provided with a multilayer composite film according to the invention with a TPO cover layer,
- FIG. 3 shows an arrangement of an interior trim part according to the invention in a vehicle
- Vehicle which is provided with a multi-layer composite film according to the invention, which has a top coat and a rear side of the top coat arranged as a cover layer
- Foam line of PVC has.
- Fig. 1 shows a section of an interior trim part 1 for a center console for a motor vehicle, wherein the interior trim part with an inventive
- Multilayer composite film 3 is provided.
- the inner lining part in this case has a carrier 2, on the outside of which a multilayer composite film 3 is arranged, the covering layer 4 of which consists essentially of a thermoplastic polyolefin (TPO).
- TPO thermoplastic polyolefin
- cover layer 4 does not behave as almost completely translucent glass, but a certain percentage of the incident light on its back through and read another part of reflected or absorbed.
- a textile layer 6 On the back side of the cover layer is a textile layer 6, namely an optically active textile layer which essentially comprises filaments of polyethylene terephthalate (PET) and thus has a combination of optical properties, namely light-transmitting, light-refracting and light-reflecting properties, but here essentially Transmitted light, so let through. These transmission, refraction and reflection properties are designed so that a back lighting of the textile layer 6 leads to a passage of light through the partially translucent cover layer 4.
- a light source 7 is provided of a plurality of LED lights 8 arranged flat on conductor strips, which are arranged at regular intervals over a specific area on the carrier 2 and directly adjacent to the textile layer 6.
- the textile layer 6 is formed here as a non-illustrated knitted fabric made of textured PET threads. The texturing promotes, as already explained above, a rather diffuse passage of light and thus an opaque appearance of the cover layer 4.
- Fig. 2 shows in the form of a plan view and magnification, the cover layer 4, which is partially translucent and formed with a texture of its surface.
- the texture of a surface is to be distinguished from the "texturing" of threads already described above.
- the texture of the surface results from the fact that the cover layer is reduced in a plurality of partial areas or surface points to a residual layer thickness, ie, as already explained above, provided with a "semi-perforation", which was produced by an embossing.
- the cover layer is provided here with a plurality of different sized diamond-shaped stampings or depressions 9, 10 of 1 to 2 mm 2 base area, creating a pattern with not reaching through the total thickness of the top layer type blind holes.
- the diamond shape is of course only one of the possible
- stampings are just as well circular, elongated or oval stampings or a mixture thereof can be introduced.
- the layer thickness of the cover layer which is reduced in the holes then leads to the passage of light from the underlying optical film through these "thinned residual layers" being greater than in the non-thinned areas, but the cover layer still appears to be opaque in the overall impression Hole pattern thus appears to the viewer as a uniform shimmering, translucent pattern of light.
- FIG. 3 shows by way of example the arrangement of the interior trim part 1 provided with a translucent composite film 3 according to the invention based on TPO in a vehicle.
- the luminous outer surface of the center console of the cockpit not only makes it possible to create effective lighting, but also signals the driver to increase safety on the road.
- 4 shows a section of a further interior trim part 11 for a vehicle, which is provided with a multi-layer composite film 13 according to the invention, the cover layer 14 has a top coat 15, ie a cover layer of PVC and a rear side of the top coat PVC foam line 16 .
- the inner lining part in this case has a carrier 12, on the outside of which the multilayer composite film 13 is arranged.
- the composite film is provided on its outside with a transparent coating 17.
- a textile layer 18 is arranged, as already described in the above exemplary embodiment of a TPO cover layer under FIG.
- the textile layer is also formed and optically effective as in the above
- Embodiment with a TPO cover layer The transmission, refraction and reflection properties are designed so that a back-side illumination of the textile layer 18 to a passage of light through the partially translucent
- a light source 19 is provided from a plurality of flat conductor strips arranged on LED lights 20, the in
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017215369.5A DE102017215369A1 (en) | 2017-09-01 | 2017-09-01 | Translucent multi-layer composite film |
PCT/EP2018/065417 WO2019042610A1 (en) | 2017-09-01 | 2018-06-12 | Light-permeable multi-layer composite film |
Publications (1)
Publication Number | Publication Date |
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EP3676085A1 true EP3676085A1 (en) | 2020-07-08 |
Family
ID=62567674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP18730354.0A Pending EP3676085A1 (en) | 2017-09-01 | 2018-06-12 | Light-permeable multi-layer composite film |
Country Status (5)
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US (1) | US11338543B2 (en) |
EP (1) | EP3676085A1 (en) |
CN (1) | CN111051050A (en) |
DE (1) | DE102017215369A1 (en) |
WO (1) | WO2019042610A1 (en) |
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2017
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2018
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- 2018-06-12 US US16/642,945 patent/US11338543B2/en active Active
- 2018-06-12 EP EP18730354.0A patent/EP3676085A1/en active Pending
- 2018-06-12 WO PCT/EP2018/065417 patent/WO2019042610A1/en unknown
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US20200346428A1 (en) | 2020-11-05 |
CN111051050A (en) | 2020-04-21 |
US11338543B2 (en) | 2022-05-24 |
WO2019042610A1 (en) | 2019-03-07 |
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