DE19937274A1 - Decorative element, in particular, for motor vehicle interiors is based on a sheet material with decorative pattern which is applied so that the element with a desired decorative pattern is obtained by deep drawing - Google Patents

Decorative element, in particular, for motor vehicle interiors is based on a sheet material with decorative pattern which is applied so that the element with a desired decorative pattern is obtained by deep drawing

Info

Publication number
DE19937274A1
DE19937274A1 DE1999137274 DE19937274A DE19937274A1 DE 19937274 A1 DE19937274 A1 DE 19937274A1 DE 1999137274 DE1999137274 DE 1999137274 DE 19937274 A DE19937274 A DE 19937274A DE 19937274 A1 DE19937274 A1 DE 19937274A1
Authority
DE
Germany
Prior art keywords
decorative
carrier
deep
polycarbonate
decorated
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
Application number
DE1999137274
Other languages
German (de)
Inventor
Karl Burgholzer
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.)
Burg Design GmbH
Original Assignee
Burg Design GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Burg Design GmbH filed Critical Burg Design GmbH
Priority to DE1999137274 priority Critical patent/DE19937274A1/en
Publication of DE19937274A1 publication Critical patent/DE19937274A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00Shaping 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
    • B29C51/14Shaping 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2795/00Printing on articles made from plastics or substances in a plastic state
    • B29C2795/002Printing on articles made from plastics or substances in a plastic state before shaping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005Body finishings
    • B29L2031/3008Instrument panels

Abstract

Decorative element 1, in particular for motor vehicles, consisting of a flat carrier part 3, onto which decorative material is applied flatly, the carrier part 3 being provided with the decorative material and this material being designed such that when the carrier part 3 provided with the decorative material is deep drawn a deep-drawn decorative element 1 with an essentially distortion-free decor 2 is present.

Description

The present invention relates to a decorative element which in Interiors and especially in the automotive sector as the first or additional equipment is used to the vehicle interior ren, especially in the fittings area, an attractive appearance to give res.

The fitting area is usually and mid-range vehicles in unappealing black and Shades of gray, with decorative elements little to date found no entrance at all. This is mainly due to this cause that so far no inexpensive decorative element for the Its purpose was that of the automotive industry complied with the necessary safety regulations. So there is for example, an already known decorative element in essence Chen made of polymethyl methacrylate or plexiglass, which in the case an accident and a related deformation of the De Korelementes is not shatterproof, but splinters what can lead to serious injuries to the vehicle occupants. For this reason, such a decorative element on the part of Automotive industry as initial equipment for beautification the car interior practically not used.  

As an alternative to the aforementioned decorative element, it is possible to As part of an embellishment of a motor vehicle interior Use foil on the surfaces to be decorated is applied. Such a film must be discarded the same when exposed to heat, for example by sunshine prevent radiation with the underlying surface be fully glued. A disadvantage of such a film is that them due to the extremely irregular shapes, for example an instrument panel with an appealing result Appearance can practically only be applied at the factory. Thus, the decor of an armatu decorated in this way only once before the force is completed vehicle. This appearance can take on only closing until the motor vehicle is scrapped extremely complex, again at the factory, and in for everyone no longer be practicable and cheap.

The two aforementioned known variants for decorating egg Nes motor vehicle interior both have the disadvantage that a decorative material is not distortion-free on a corr Decorative element shaped according to the surface to be decorated or applied directly to the surface to be decorated can be. This is especially true for heavily curved and irregular surfaces, such as those in force vehicle interiors. This often results in an inhomo Genes, optically unsightly decor that the attractiveness of Vehicle interior adversely affected against the intention. The As already mentioned, this problem has been caused by the Real gray or black design of the driving bypassed witness interior.

The object of the present invention is therefore the front to overcome the disadvantages mentioned and a decorative element to increase the visual attractiveness of a vehicle to provide space, which in a simple manner  the vehicle parts to be decorated fit snugly and non-slip brought and detached from it in an equally simple manner can, which has a substantially distortion-free decor And in the event of deformation, breakproof or splinterproof is trained.

This object is achieved by the specified in claim 1 Features solved, the subclaims at least others advantageous embodiments of the present invention fenbaren.

The essence of the present invention is a Decorative element, especially available for motor vehicles set, where a decorative material flat on Corresponding break and shatterproof support part in this way is applied that when deep drawing the with the decorative Material provided carrier part a deep-drawn decorative element with an essentially distortion-free or targeted, ins special locally distorted decor is present.

According to the invention, the decorative element is in terms of its shape adjusted so that it is full on a surface to be decorated lies on. To fix the decorative element on this surface che are adhesive on the back, for example in Form of adhesive tape, attached. Instead of adhesive strips can also use a Velcro mechanism at this point mus, a magnetic holder or clamps or clamps provided be, a possibly necessary counterpart of this ent speaking on the surface to be decorated or ver is attached to the side of it.

According to the invention, the carrier part consists of a UV light-resistant, light material with a density in the range from 1.0 g / cm 3 to 1.5 g / cm 3 , which is resistant to in a temperature range from -50 ° C. to + 150 ° C. Is heat that has a high strength in terms of a high resistance to breakage or splintering as well as a high resistance to scratching. The carrier part is also largely weather-resistant, before being poorly flammable and not necessarily but desirably a good electrical insulator. The front or visible side of the carrier part is high-gloss and / or structured, wherein preferred embodiments are described in the further. Furthermore, the carrier part is crystal-clear or at least transparent, and the material of the carrier part can be colored. The carrier part material preferred according to the invention consists of polycarbonate, with a modified polycarbonate being particularly preferably used which, in contrast to the above requirement, is characterized by electrical conductivity.

The preferred thickness of the carrier part is in the range of 0.3 mm to 1.5 mm, in particular in the range from 0.8 mm to 1, 2 mm.

The decorative material, which on the flat support part is applied, before application either in the form of egg ner film are present, which with a preferably screen printing dye is printed, or it can consist of one or more reren, preferably also screen-printable dyes stand. According to the invention, the dye used is UV light and temperature resistant to prevent the decor from fading prolonged exposure to light, especially daylight or Avoid sunlight, as well as deep drawing the with the de corative material provided flat support part chen. The temperature resistance extends up to an upper temperature of about 220 ° C. In compliance with the the aforementioned conditions can essentially correspond to all dyes as a decorative material where used in the case of the invention in particular dyes with effect pigments ten, preferably with iridescent effect pigments, or such  Dyes are used, the finished pattern of which Apply to the appropriate film or the appropriate Carrier part gives the impression of a cut stone.

If the support part is colored translucent, is the dye used for this is also UV-resistant and temperature resistant in the above range.

According to the invention, the decorative material, as already above mentioned, either in the form of a printed film or immediately bar applied to the support member. Although the Aufbrin due to the dye on the film or the carrier part the associated flexibility in terms of decor staltung preferably done by screen printing, the color fabric also with offset printing or by means of high or low pressure or with other methods of applying dye to flat surfaces Objects are applied. It is worth mentioning here also painting a decor.

The decorative material can be on the front or on the view side as well as on the back, d. H. the later edition side, be upset.

If the decorative material on the front of the flat Carrier part is applied, the carrier part can also consist of a Material that is not transparent or translucent, but opaque and not UV-resistant. In in this case, the decorative material is also largely un sensitive to mechanical influences, especially scratches firmly trained or protected by a protective layer.

According to one embodiment, the decorative material is on the Back of a flat transparent carrier part opened brings. This configuration is particularly advantageous since the decorative material due to the back application  external influences, such as mechanical damage is protected. In addition, the external appearance due to a different surface design of the carrier partly on its visible side regardless of that on the back side of the support part applied decor can be varied. So it is possible, for example, that the front or visible side of the support part high-gloss, matt or with a three-sided dimensional structure is formed. For example, on this way a glossy effect on the back of the wearer some decorations applied by a high-gloss visible side or with the help of a three-dimensional design called light reflections amplified or by means of a rough hen surface of the visible side of the support part weakened his. It is also possible that the grip and / or Slip resistance of the carrier part surface in its view side, in particular by means of a three-dimensional structure is improved.

The decorative element according to the invention is in terms of its shape adapted to a surface to be decorated, the Formge exercise preferred by deep drawing the with the decorative Material provided flat support part in dehydrated State is realized. This is a precise and ensures smooth surface of the decorative element.

Alternatively, the door provided with the decorative material can be deep drawn without prior dehydration where by in the case of the preferred use of hygroscopic Polycarbonate as a carrier material for those during deep drawing occurring temperatures in the range of 190 ° C to 220 ° C, be preferably exits steam in the range from 200 ° C to 210 ° C the carrier material takes place so that its surface is irregular is moderately formed or a rough surface, for example in the form of burst bubbles. This can be a ge desired decor effect.

The invention is based on various embodiments forms and explained in more detail with the help of drawings:

Fig. 1 shows schematically a decor element according to the invention;

Fig. 2 shows a sectional view through a layer sequence for an inventive decorative element ge according to a first embodiment;

Fig. 3 shows a sectional view through a layer sequence for a decorative element according to the invention ge according to a second embodiment;

Fig. 4 shows a sectional view through a layer sequence for an inventive decorative element ge according to a third embodiment.

The drawing shown in Fig. 1 schematically represents a by means of deep drawing to a surface to be decorated decorative element 1 , wherein several distortion-free decorations 2 are shown schematically as a line, line or stone pattern. The distortion-free decor 2 is designed so that it does not have any warp or line deviation in terms of its appearance before deep drawing by placing a temperature profile on the finished molded decorative part 1 during deep drawing. This essentially distortion-free image of a decor is obtained even on strongly curved or irregularly shaped decorative parts 1 .

According to the first embodiment of the invention shown in FIG. 2, the decorative element consists of several layers. In a preferred manner, a film 6 designed with screen printing is applied on the back of a transparent carrier part 3 , preferably made of polycarbonate. To improve the adhesion device of the film 6 to the carrier part 3 , a crystal-clear adhesive agent 5 is used . The adhesion promoter 5 is applied to the rear surface of the polycarbonate carrier part 3 and causes the film 6 to adhere adhesively to the carrier part 3 . Depending on the surface quality of the back of the carrier part and the dye or decorative layer 9 arranged on the film 6 , the adhesive effect is possibly reinforced with an additional transparent glass adhesive 5 a, which is a further layer (not shown) between the dye or decorative layer 9 and the sub-layer 3 is arranged.

The dye or decorative layer 9 is applied to the carrier part 3 either by a simple covering and pressing or, for example, in analogy to the third embodiment mentioned later, by a hot stamping method.

On the back of the film 6 there is a cover layer 7 , which will be described in more detail below, to which in turn an adhesive 8 is attached in order to fix the decorative element 1 on a surface to be decorated.

Alternatively, the adhesive 8 can be attached directly to the back of the film 6 .

This embodiment shown in Fig. 2 has the advantage that the attached polycarbonate Träg gerteilschicht 3 for the underlying layers, in particular for the underlying dye or decorative layer 9 offers mechanical protection.

In Fig. 3, a particularly preferred embodiment of the present invention is shown. The sequence of layers shown here shows that the dye or decorative layer 9 is applied directly to the back of the carrier layer 3 made of polycarbonate. This has the advantage that the labor-intensive step of applying a printed film 6 by means of an adhesion promoter 5 and possibly an adhesive 5 a is omitted. Furthermore, according to this embodiment, there is no need for a film 6 , since the decoration is printed directly onto the back of the polycarbonate carrier part.

On the back of the dye or decorative layer 9 is again arranged a cover layer 7 , on which, analogously to the first embodiment in FIG. 2, adhesive 8 for fixing the decorative element 1 are arranged on a surface to be decorated. In this second embodiment too, the adhesives 8 can be arranged directly on the dye or decorative layer.

The dye or decorative layer 9 is applied before by means of screen printing, wherein the above-mentioned further methods can also be used.

The third embodiment of the present invention of a decorative element shown in FIG. 4 schematically shows a layer sequence in which a decor-forming dye layer is arranged on the front or visible side of a carrier part 3 , in particular made of polycarbonate. Here, the visible side 4 of the carrier part 3 is seen with an adhesion promoter 5 to ensure optimal adhesion of the dye or decorative layer 9 to the carrier part. According to this third embodiment, the decor-forming dye layer 9 , preferably by means of screen printing, is applied to a film carrier layer 11 , the dye or decorative layer 9 being subsequently transferred to the carrier part by means of a hot embossing process in the manner of a transfer picture, the films carrier layer 11 Will get removed. On the back of the carrier sub-layer 3 , which consists of unbreakable or shatterproof polycarbonate, a cover layer 7 is again applied, on which adhesive 8 are arranged for fixing the decorative element on surfaces to be decorated.

As an alternative to applying a dye or decorative layer 9 to a carrier part 3 by means of a hot stamping process, a normal thermoformable decorative film can also be used.

It is common to all the described embodiments that the carrier part 9 is deep-drawn after the application of a dye or decorative layer 9 using a predetermined temperature profile.

The cover layer 7 mentioned in the above-described embodiments can either be a dye, preferably black, or a film. This cover layer protects the underlying layers in the direction of viewing side, the shape in the first place that the cover layer 7 by an interaction Zvi rule the adhesive 8 and the other side of the cover layer 7 lie constricting layers is avoided. Furthermore, the cover layer serves to cover irregularities on the surface to be decorated, so that the appearance of the decor is not impaired by a faulty surface to be decorated. Of course, the cover layer 7 can also be in other colors than black, if this is desired.

The thickness of the decorative element according to the invention is in the range from 0.2 mm to 1.7 mm, preferably in the range from 0.4 mm to 1.3 mm and particularly preferably in the range from 0.6 to 1.1 mm.

To ensure that during the thermoforming of the de corative material provided no distortion of the decor is applied flat to the carrier part, is an exact process side during the thermoforming process defined temperature profile applied. Through this tempera turprofil is incorporated in the material of the later decorative element Temperature gradient generated so that during the deep-drawing process a specifically controlled material flow takes place. That tempera  turgradient is of the later desired shape of the decor directly dependent, the during the deep-drawing process The lower the temperature, the lower the required temperature with the decorative material provided on this support part Point is deep-drawn. This ensures that during deep drawing a material passageway and thus also a pattern course of the decor from less deformable areas of the De Korelements towards areas with a necessary very strong Deformation is avoided, whereby the original on the surface Unformed or not yet deep-drawn carrier part brought decor or pattern on the finished deep-drawn De Korelement remains intact. Typical temperatures during a controlled deep drawing process are in the range of 208 ° C ± 15 ° C. The one required to control the material flow Temperature gradient in the decorative element to be deep-drawn either through differently warm heating zones or through one different distance of the heating elements from the deep drawing generated decorative element. At this point there is also a ge targeted hot or cold blowing of certain areas with the help of egg Nes hot gas or a cold gas blower conceivable, as a gas preferably air or with oxidation-sensitive components of the later decorative element nitrogen, argon or another Inert gas can be used.

Of course, with the help of the aforementioned method also specifically creates distortions in the pattern of the decorative element if so desired.

The decorative element according to the invention takes place both indoors as well as outdoors to improve a visual impression Use, with indoor use being preferred. Motor vehicles in particular should be mentioned here, although because of the low density of the decorative element according to the invention also Airplanes, as well as ships, living and working spaces with the invent contemporary decorative element can be designed.  

Last but not least, the decorative element according to the invention serves its mechanical stability and break resistance in kind a protective cover also protecting the underlying Surface.  

Reference list

1

Decorative element

2nd

distortion-free decor

3rd

Carrier part

4th

Front or visible side

5

Adhesion promoter

5

a adhesive

6

foil

7

Top layer

8th

Adhesive

9

Dye or decorative layer

10th

Adhesive (hot stamping)

11

Foil carrier layer (hot stamping process)

Claims (17)

1. Decorative element, in particular for motor vehicles, consisting of a flat carrier part, to which decorative material is applied flat, characterized in that the carrier part 3 see ver with the decorative material and this material is designed such that when deep-drawing with the decorative Material provide NEN carrier part 3 a deep-drawn decorative element 1 with egg nem essentially distortion-free or deliberately distorted decor 2 is present.
2. Decorative element according to claim 1, characterized in that the decorative material is applied in the form of a printed film 6 or directly by screen printing on the carrier part 3 , in particular on its back.
3. Decorative element according to one of the preceding claims, characterized in that the decorative material is transferred from a printed film 6 in the manner of a decal to the carrier part 3 .
4. Decorative element according to one of the preceding claims, characterized in that the decorative material is UV light and temperature resistant is.
5. Decorative element according to one of the preceding claims, characterized in that the decorative material iridescent, for screen printing those for it colors contain iridescent effect pigments.  
6. Decorative element according to one of the preceding claims, characterized in that the decorative material is a pattern corresponding to the upper surface of a cut stone conveyed.
7. Decorative element according to one of the preceding claims, characterized in that the decorative material is applied to the back of a transparent or crystal-clear carrier part 3 .
8. Decorative element according to one of the preceding claims, characterized in that the front or visible side 4 of the carrier part 3 is highly glossy and / or structured.
9. Decorative element according to one of the preceding claims, characterized in that the carrier part 3 is colored translucent.
10. Decorative element according to one of the preceding claims, characterized in that the carrier part 3 has the following properties:
  • - UV light resistant,
  • - resistant to heat in a temperature range from -50 ° C to + 150 ° C,
  • Density in the range from 1.0 g / cm 3 to 1.5 g / cm 3 ,
  • - high strength in terms of a high resistance to breakage or splintering,
  • - high resistance to scratching,
  • - weather resistance
  • - poor flammability
  • - high electrical insulation properties
11. Decorative element according to one of the preceding claims, characterized in that the carrier part 3 is made of polycarbonate.
12. Decorative element according to claim 11, characterized in that the polycarbonate is a modified polycarbonate.
13. Decorative element according to one of the preceding claims, characterized in that it is deep-drawn in a dehydrated state.
14. Decorative element according to one of the preceding claims, characterized in that it has a thickness in the range of 0.3 mm to 1.5 mm.
15. Decorative element according to one of the preceding claims, characterized in that the back of the decorative element 1 is provided with a cover layer 7 .
16. Decorative element according to one of the preceding claims, characterized in that it in terms of its shape for a full circulation is adapted to a surface to be decorated.
17. Decorative element according to one of the preceding claims, characterized in that on the back adhesive 8 are attached for fixation on a surface to be decorated.
DE1999137274 1999-08-06 1999-08-06 Decorative element, in particular, for motor vehicle interiors is based on a sheet material with decorative pattern which is applied so that the element with a desired decorative pattern is obtained by deep drawing Ceased DE19937274A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999137274 DE19937274A1 (en) 1999-08-06 1999-08-06 Decorative element, in particular, for motor vehicle interiors is based on a sheet material with decorative pattern which is applied so that the element with a desired decorative pattern is obtained by deep drawing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999137274 DE19937274A1 (en) 1999-08-06 1999-08-06 Decorative element, in particular, for motor vehicle interiors is based on a sheet material with decorative pattern which is applied so that the element with a desired decorative pattern is obtained by deep drawing

Publications (1)

Publication Number Publication Date
DE19937274A1 true DE19937274A1 (en) 2001-02-15

Family

ID=7917528

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999137274 Ceased DE19937274A1 (en) 1999-08-06 1999-08-06 Decorative element, in particular, for motor vehicle interiors is based on a sheet material with decorative pattern which is applied so that the element with a desired decorative pattern is obtained by deep drawing

Country Status (1)

Country Link
DE (1) DE19937274A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004006487A1 (en) * 2004-02-10 2005-09-08 Lisa Dräxlmaier GmbH Decorative component, in particular vehicle component, manufacture involves three-dimensional forming of decorative areas of a film base layer by plastic injection onto one or both sides
WO2007107253A1 (en) * 2006-03-22 2007-09-27 Bayer Materialscience Ag Flameproof impact-resistance modified polycarbonate compositions
FR2979307A1 (en) * 2011-08-23 2013-03-01 Faurecia Interieur Ind Cover for e.g. instrument panel of car, has decoration element placed on external surface of layer of lining, and stiffening unit placed in lining locally right to decoration element to limit deformations of lining caused by compression
DE102014006884A1 (en) * 2014-05-09 2015-11-12 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Motor vehicle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004006487A1 (en) * 2004-02-10 2005-09-08 Lisa Dräxlmaier GmbH Decorative component, in particular vehicle component, manufacture involves three-dimensional forming of decorative areas of a film base layer by plastic injection onto one or both sides
DE102004006487B4 (en) * 2004-02-10 2015-03-12 Lisa Dräxlmaier GmbH Process for the production of decorative parts and trim
WO2007107253A1 (en) * 2006-03-22 2007-09-27 Bayer Materialscience Ag Flameproof impact-resistance modified polycarbonate compositions
US7833448B2 (en) 2006-03-22 2010-11-16 Bayer Materialscience Ag Flameproofed impact-strength-modified poly(ester)carbonate compositions
FR2979307A1 (en) * 2011-08-23 2013-03-01 Faurecia Interieur Ind Cover for e.g. instrument panel of car, has decoration element placed on external surface of layer of lining, and stiffening unit placed in lining locally right to decoration element to limit deformations of lining caused by compression
US8814247B2 (en) 2011-08-23 2014-08-26 Faurecia Interieur Industrie Vehicle covering having a frame, trim and a decorative element
DE102014006884A1 (en) * 2014-05-09 2015-11-12 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Motor vehicle

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