• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Sports equipment (10), in particular ski, snowboard or water sports equipment, with a base body (2) and a plastic film (1) attached to the base body (2), the plastic film (1) facing the base body (2) decorative layer (5) and a the base body (2) facing away, at least partially the surface of the sports equipment (10) forming the cover layer (4), wherein the decorative layer (5) as the main component polyamide and the cover layer (4) as the main component thermoplastic polyurethane.
    公开号:AT511083A4
    申请号:T15192011
    申请日:2011-10-18
    公开日:2012-09-15
    发明作者:Christian Dipl Ing Dr Gornik
    申请人:Isosport Verbundbauteile Gesmbh；
    IPC主号:
    专利说明:

    71118 22 / fr
    The invention relates to a sports device, in particular ski, snowboard or water sports equipment, with a base body and a mounted on the body plastic film. In addition, the invention relates to a method for producing such a sports device. Furthermore, the invention relates to a plastic film for application to a sports equipment as well as a method for producing a plastic film.
    Generic sports equipment are exposed to high stresses in the area of the surface. Figure 1 shows a cross section of such a sports equipment, which consists in a simplified form of a surface film (plastic film 1), a base body 2 and a bottom 3 or sliding side. According to the known state of the art, foils with thicknesses in the range between typically 0.2 mm and 0.8 mm are used on the ski surface.
    An example of the production of such sports equipment is described in US Pat. No. 5,506,310 (corresponding to DE 691 04 120 T2), wherein in this document a wide variety of plastic materials are components of the manufactured sports equipment.
    In general, the surface foil is transparent for optimal design possibilities and is decorated from the back. Furthermore, high demands are placed on the processing temperatures and the service temperatures. The decoration of the ski surface material takes place, for example, by means of screen printing, the solvent resistance of the film and the temperature resistance in the drying process being of importance in this decoration. Another possibility of decoration is the so-called thermal diffusion process, in which the colors diffuse into the surface of the film at elevated temperature (typically between 150 ° C and 165 ° C). When using this decoration method, the film must withstand the temperatures mentioned without significant changes in the geometric properties. Furthermore, it is also possible to decorate the films by means of direct digital printing, in which systems can be used on solvent-based inks, water-based inks, latex inks and UV-curable inks.
    When processed in the Schipresse, the ski surface material must withstand thermal stresses in the range between 60 ° C and 130 ° C, depending on the. · · · «• * φ · φ * · m ·« · * ·
    Manufacturing method, and press pressures of a few bar withstand, without the material begins to flow to a greater extent. A high adhesion between the film and the adhesive system used is a prerequisite for the suitability of the film material for the ski production process. In use, ie on the ski slope, the surface film is exposed to temperatures down to -30 ° C, in exceptional cases also below, and high UV exposure. In addition, large mechanical stresses occur due to the deflection of the sports equipment. The surface film must withstand these stresses without embrittlement and without breakage. Transparent films based on relatively expensive polyamide 11 or polyamide 12 are used as surface films for all the decoration methods mentioned above. For lower wear resistance, films of lower cost ABS / TPU blends are known to be in use, these are not suitable for thermal diffusion decoration due to the lower temperature resistance and the press temperatures must not exceed about 100 ° C, otherwise the material starts to flow and off the form is running. The prior art are further 2-layer films in which the top of pure TPU (thermoplastic polyurethane) and the bottom of an ABS / TPU blend, the top is very resistant to wear due to the TPU and the bottom due to the ABS / TPU Blends has a good adhesion to screen printing and digital inks. However, such TPU-ABS / TPU coexfolien are not thermodiffusable due to the low temperature resistance of the ABS / TPU layer.
    The materials mentioned are usually produced by extrusion in film form. The surface of the film can be made either smooth or embossed. The embossing, which can be both decorative in character and can be used to increase the wear resistance, is introduced either directly during extrusion by means of a structured calender roll or in a subsequent step on an embossing machine. In any case, the material temperature must be above the deformation temperature of the respective material so that the negative contour of the embossing roll is impressed into the surface of the film. By embossing on the extrusion line (so-called inline embossing) or embossing on a 71118 22 / fr • * * 3 * · · ♦ ··· * * * * * * * * · «« * »+ * * * *« * «* * * * *« · · · «* ·«
    Embossing plant (so-called offline embossing) only periodically recurring patterns on the surface film can be realized.
    The object of the present invention is therefore to provide a comparison with the prior art improved sports equipment or an improved plastic film. In particular, the surface of the forming plastic film should have a high wear resistance and can be printed for decorative purposes by screen printing, thermal diffusion or digital direct printing. Furthermore, it should be possible that the plastic film at least partially receives an embossed structure.
    This is achieved for a sports device with the features of the preamble of claim 1, characterized in that the plastic film facing the base body decorative layer and the base body facing away from the base, at least partially the surface of the sports equipment forming cover layer, wherein the decorative layer as the main component polyamide and the cover layer as Main component thermoplastic polyurethane has. Further advantageous embodiments of the present invention will become apparent from the dependent claims.
    Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the exemplary embodiments illustrated in the drawings. Show:
    1 shows a section through a sports equipment,
    2 shows a section through the two-layer plastic film,
    Fig. 3 shows a mold before the compression of the plastic film on the body and
    4 shows a section through a sports device with an embossed surface structure.
    It has been shown that a 2-layered plastic film 1 made of polyamide as a decorative layer 5 and TPU (thermoplastic polyurethane) as a cover layer 4 fulfills the stated requirements (see FIG. 2). The layer distribution ideally lies between 20:80 and 80:20. However, the polyamide layer must be at least 150 pm thick, as this is the thickness typically encountered in the 71118 22 / fr
    Diffuse thermodiffusion colors. In fact, diffusing the thermal diffusion dyes into the TPU layer would result in undesirably high migration of the colors, which would result in "blurry" designs. The polyamide for the adhesive layer (decorative layer 5) is advantageously selected from the group of polyamide 11, polyamide 12, polyether block amides or blends of the polyamides mentioned. On the one hand, these polyamides have sufficient temperature resistance for the thermal diffusion and pressing process and, on the other hand, good toughness at use temperatures below 0 ° C. The top TPU (topcoat 4) is advantageously selected from the group of aliphatic or aromatic thermoplastic polyurethanes, since these materials have very good wear resistance. In addition, these TPU types also offer the possibility of introducing embossing patterns 9 into the surface during the Schipress process by appropriate mold temperature and by applying corresponding pressure, provided that a corresponding negative structure 7 is present in the Schipress mold 6, 8.
    The plastic film 1 is produced by coextrusion of the cover layer 4 and the decorative layer 5 in an extruder. For this purpose, the individual components or starting materials are introduced into the extruder and then arrive at one another from the extruder die, from where they pass directly between cooled Kalanderwaizen and cool to the plastic film 1. Subsequently, this plastic film 1 on the back, that is printed on the decorative layer 5 by thermal diffusion at about 150 ° C. In this case, the polyamide does not soften the decorative layer 5, but the colors can diffuse through the heating in the polyamide of the decorative layer 5. After further cooling, this plastic film 1 can in turn be printed on the back side due to the transparency of the plastic film 1, which is present except for the printing, with a covering background color. Thereafter, this plastic film 1 can be cut and stored or integrated directly into the further ship production process. For this purpose, the plastic film 1 can be glued or pressed onto the base body 2 using an adhesive.
    FIG. 3 shows, in simplified form, the process in which, due to the negative structure 7 in the upper part 6 of the mold, the plastic film 1, which is in contact with the main body 2 and the base body 2 and • • 71118 22 / fr 5: * • · · ft «• ·
    Bottom 3 is placed on the lower part 8 of the press, a surface structure 9 is embossed in the plastic film 1. In this pressing process, the base body 2 with the plastic film 1 and the bottom 3 is connected by appropriate bonding.
    Fig. 4 shows a simplified representation of the result of this pressing process, is characterized in the same time during pressing: the structure 7 of the upper part 6 of the mold is transferred as a surface structure 9 in the plastic film 1. Alternatively, the negative structure 7 can also be effected by inserts in the upper part 6 of the mold or by the insertion of an embossing paper or a stamping foil with the negative structure 7.
    A plastic film 1 with a decorative layer 5 of modified polyamide 12 and a cover layer 4 of a UV stabilized TPU with a hardness of 74 ShoreD can be decorated at 150 ° C on the polyamide side by thermal diffusion and at 100 ° C mold temperature in the Schipresse with a Marked. The impact strength at room temperature and at low temperature shows sufficiently high values in the fall-bolt test for ski applications. The transparency of the 2-layer film at a film thickness of 0.5 mm is 80%. The film was produced by coextrusion.
    It should be noted that the word "main constituent of a layer" is defined such that this main constituent (whether polyamide or thermoplastic polyurethane) has a weight percentage of over 75%, preferably over 90%, on the finished and cooled layer (be it Decorative layer 5 or cover layer 4). In the cover layer 4, for example, an additional UV stabilizer with a weight fraction of 2% could be present. In the decorative layer 5, an adhesion promoter with a weight percentage in the single-digit range may be present. In particular, in this decorative layer 5, of course, a part of the ink diffuse, so change the weight percentages depending on the amount of printed and diffused color.
    Innsbruck, 17 October 2011
    权利要求:
    Claims (15)
    [1]
    1. Sports equipment (10), in particular ski, snowboard or water sports equipment, with a base body (2) and a plastic film (1) mounted on the base body (2), characterized in that the plastic film (1) faces a decorative layer (5) facing the base body (2) and faces away from the base body (2) at least in regions the surface of the sports equipment (10 ), wherein the decorative layer (5) as the main component polyamide and the cover layer (4) as a main component thermoplastic polyurethane.
    [2]
    2. Sport apparatus according to claim 1, characterized in that the ratio of the thickness of the decorative layer (5) to the thickness of the cover layer (4) is between 20 to 80 and 80 to 20.
    [3]
    3. Sport apparatus according to claim 1 or 2, characterized in that the polyamide for the decorative layer (5) by polyamide 11, polyamide 12, polyether block amides or a mixture thereof is formed.
    [4]
    4. Sports device according to one of claims 1 to 3, characterized in that the thermoplastic polyurethane for the cover layer (4) is formed by a polyurethane from the group of aliphatic or aromatic thermoplastic polyurethanes.
    [5]
    5. Sports device according to one of claims 1 to 4, characterized in that the decorative layer (5) has a minimum thickness of 150 pm.
    [6]
    6. Sports device according to one of claims 1 to 5, characterized in that the decorative layer (5) is printed by thermal diffusion.
    [7]
    7. plastic film for application to a sports equipment, in particular according to one of claims 1 to 6, with a decorative layer (5) and a cover layer (4), characterized in that the decorative layer (5) as the main component · * · ** * * · * * ·· 71113 22 / eh * * 2 * · · · ······························································································································································································································
    [8]
    8. A method for producing a plastic film according to claim 7, comprising the steps of: - producing a decorative layer (5) with the main constituent polyamide and a cover layer (4) with the main constituent thermoplastic polyurethane by coextrusion, - joining the two coextruded layers (4, 5) by cooling to the plastic film (1).
    [9]
    9. A method for producing a sports device (10), in particular according to one of claims 1 to 6, with a base body (2) and a on the base body (2) attached plastic film (1), characterized by the steps: - producing a decorative layer ( 5) with the main component polyamide, - producing a cover layer (4) with the main component thermoplastic polyurethane, - connecting the decorative layer (5) and the cover layer (4) to the plastic film (1) and - connecting the plastic film (1) to the main body ( 2), wherein the decorative layer (5) facing the base body (2).
    [10]
    10. The method according to claim 9, characterized in that the decorative layer (5) and the cover layer (4) are coextruded.
    [11]
    11. A method according to claim 9 or 10, characterized in that the decorative layer (5) is printed by thermal diffusion.
    [12]
    12. The method according to any one of claims 9 to 11, characterized in that the plastic film (1) with the base body (2) is glued. 71118 22 / eh
    [13]
    13. The method according to any one of claims 9 to 12, characterized in that in the cover layer (4) by a negative structure (7) in a mold at least partially a surface structure (9) is impressed.
    [14]
    14. The method according to claim 13, characterized in that the negative structure (7) by pressure and temperature during pressing of the sports device (10) in the surface of the cover layer (4) is transmitted.
    [15]
    15. The method according to claim 14, characterized in that during pressing simultaneously with the embossing and the bonding of the decorative layer (5) to the base body (2). Innsbruck, 17 October 2011
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    同族专利:
    公开号 | 公开日
    AT511083B1|2012-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2596286A1|1986-03-26|1987-10-02|Rossignol Sa|Ski with protected decoration|
    EP0382236A2|1989-02-10|1990-08-16|The B.F. Goodrich Company|Polyamide laminated on thermoplastic polyurethane|
    DE10134738A1|2001-07-17|2003-02-06|Voelkl Sports Gmbh & Co Kg|Optically visible texture creation on a decorative film for a ski, involves embossing film inner surface but retention of smooth outer side|
    US20050084685A1|2003-10-20|2005-04-21|Christophe Lacroix|Polyamide/polyurethane multilayer structures for decorated articles|EP3238793B1|2016-04-26|2018-09-12|CPS GmbH|Sports device with a printable, abrasion-resistant and transparent surface film|
    WO2019219770A1|2018-05-15|2019-11-21|Compagnie Plastic Omnium|Motor vehicle part comprising a clear surface film|
    FR3066432B1|2017-05-17|2019-06-28|Compagnie Plastic Omnium|MOTOR VEHICLE PART COMPRISING A DECORATIVE SURFACE FILM|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT15192011A|AT511083B1|2011-10-18|2011-10-18|SPORT UNIT WITH PLASTIC FOIL AND METHOD FOR PRODUCING THE SPORTS DEVICE|AT15192011A| AT511083B1|2011-10-18|2011-10-18|SPORT UNIT WITH PLASTIC FOIL AND METHOD FOR PRODUCING THE SPORTS DEVICE|
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