Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B61/00—Tennis nets or accessories for tennis or like games, e.g. volley-ball
  • A63B61/003—Nets for tennis or like games or accessories therefor
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B63/00—Targets or goals for ball games
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F17/00—Flags; Banners; Mountings therefor
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
  • G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards

Definitions

• the invention relates to a method for coating a network, in particular for sports and recreation, and a network, in particular a volleyball net, football net, tennis net, ball net or other protective net, which is provided by this method, according to the preamble of claim 1 and 27.
• a method for coating a network in particular for the sports and leisure sector, which comprises a network body with a plurality of meshes, which are bounded by net threads, and wherein on the net threads in a region defining the optically visible character the network body coating material, in particular flock, is applied, characterized in that the network body first on a particular smooth and / or even surface, eg on a flat plate.
• the network body e.g. is wound on a cylinder jacket-shaped peripheral surface of a drum or the like.
• the net threads are aligned on the surface in such a way that the mesh surface bounded by the net threads of a mesh-which defines the transparent surface for the players and spectators-reduced in relation to the mesh surface of the net in the unfolded state becomes.
• this can preferably be effected by successively displacing, for example, the grid rows extending horizontally, starting from a corner point of the net, by a fixed amount, for example by 10% or 50% of the mesh width, relative to one another.
• the net rows are essentially shifted by the amount of the mesh width in the direction of displacement such that the net threads of a net row are almost instantaneous aligned parallel to each other so that the mesh area becomes zero.
• the alignment of the net threads on the surface can take place by applying the tensile strength to the net body, which in the direction of the diagonal the mesh works.
• the tensile force has such a size that the tension Net threads are stretched beyond their basic length, so that the diameter of the aligned threads against the threads of the unfolded network, for example is reduced by 5% or more.
• the net threads oriented in the manner described above can, according to a further embodiment of the invention, be applied to the surface e.g. by suction or by adhesive - for example, a pressure-activatable, reusable adhesive such as e.g. is used by the company. 3M in a known manner on sticky notes - be fixed.
• coating material is then applied to the net threads oriented in the manner described above, wherein the coating material can be applied directly to the net threads or can be connected to them indirectly via a carrier medium.
• adhesive is applied to the net threads before application of the coating material, so that the coating material, which in this case in particular flock, dyed powder material or the like, is glued to the Netzfä ⁇ the, wherein following the application of the adhesive, the coating material is preferably Jerusalem ⁇ worn only on the wetted with adhesive part of the mesh body.
• the adhesive e.g. A commercially available two-component liquid adhesive for plastics, for example an epoxy resin or else a cyanate adhesive or another suitable adhesive, can be commercially available and matched to the material of the net. According to the preferred embodiment of the invention, it is in the color of the product to be produced Dyeed character, resulting in a high color fidelity, and when spraying the adhesive on a network with dark net threads the complete wetting of the just be ⁇ sprayed net threads can be checked very easily visually.
• a commercially available two-component liquid adhesive for plastics for example an epoxy resin or else a cyanate adhesive or another suitable adhesive
• the coating material can be applied directly to the net threads using heat.
• This can be done for example by one of the known thermographic printing process, preferably by a Thermosublinations réelleclar, directly on the net threads, which in this context preferably consist of polyester or nylon, which - as the applicants have found - in the Thermosublinations réelle in excellent Way and with a very high adhesive strength of the applied Thermosublinationsmaschinetechnik fürabel ⁇ lets ren.
• the net threads in this case advantageously have a white color, whereby the characters produced in the thermosubling pressure can be exposed in a particularly high contrast.
• other network colors are conceivable.
• the coating of the nets may be advantageous for the coating of the nets, if the net threads have a rectangular, for example quadrangular cross-sectional shape, whereby the threads can be arranged particularly well and close to the printing or coating side by side.
• oval cross-sections are conceivable, which can be compensated by applying a compressive force to flatten the folded net threads during coating, the resulting between the net threads wells in an advantageous manner.
• the application of the adhesive and / or the coating material preferably takes place with the aid of a stencil by screen printing, by knife coating or by a computer-controlled printing or spraying device - similar to an inkjet printer.
• the adhesive and / or the coating material is preferably applied only in the area which defines the character in the tensioned network, although it is also possible to apply the adhesive to a larger portion of the network body, or even on the entire network body, while the net threads are aligned on the surface.
• the coating material is preferably fiber material which has a fiber length in the range between 0.2 mm and 4 mm, in particular between 0.5 mm and 1.0 mm.
• a mixture of fiber material of different lengths may be advantageous.
• first pass it is possible in a first pass to use fibrous material with a length of e.g. 1 mm and in a second pass fiber material with a length of e.g. 0.5 mm, which in particular for larger areas, the spaces between the longer fibers are filled, whereby the density of the fiber material on the surface of the net threads and thus increases the color intensity.
• the length of the fiber material used is preferably selected as a function of the thread thickness or the thread diameter of the net threads, and it has been shown that optically attractive characters result if the ratio of the thickness of the thread to the length of the flock is in the range between 0 , 2 to 50.0, in particular 2.5 to 8.0.
• Particularly suitable materials here are artificial silk and polyester, but e-b hinder the use of cotton or other material such as colored Kunststoff ⁇ powder, is possible.
• a particularly advantageous flocking can be achieved here with a fiber material having a fineness in the range between 3 DTex and 10 DTex.
• the application of the thickening material is advantageously carried out using electrostatic charges.
• the coating material is positively charged, for example, and accelerated by an oppositely charged electrode arranged on the opposite side of the network, the coating material following the field lines of the electrostatic field in the case of flock / fiber material and only the tips of the fiber material in the previously on the Dip the network threads applied adhesive layer and connect with the net threads.
• flock material results, in particular in the networks used in sports, from polyamide, nylon, nylon, polyethylene or polyester material having a net filament diameter of, for example, 0.5 to 10 mm and a mesh size in the range of, for example, 4.5 cm a spatial visual impression, which makes the displayed logos, numbers or letters particularly attractive for the viewer, and which also leads to highly visible images when taken by television cameras.
• the mesh sizes commonly used in sports nets for catching balls are generally at least 18 mm (Badmintonnetze) for the players, or viewers the Naturalsicht ensured by the networks go ⁇ out in such a way that no visual impairments occur for the athletes / spectators concerned.
• the coating of the net fibers by spraying a dyed, self-foaming plastic material and hardening the same, e.g. by irradiation with UV light.
• the plastic material here is preferably a self-foaming plastic material that has long been used for items of clothing, which is usually printed on caps, T-shirts and jackets, etc., by screen printing in order to produce a spatial structure.
• the region in which the coating material is applied to the preferably parallel and juxtaposed Netzfä ⁇ the can be converted by a coordinate transformation in the region of the network, which later on the spanned network the optically visible character Are defined.
• the coordinate transformation here is preferably a linear displacement, in particular in conjunction with a rotation of the original coordinates of the network, which may be defined in particular by the nodes of the mesh meshes.
• the region in which the coating material is applied to the aligned net threads is delimited by a recessed area of the stencil, whose Shape and / or size is determined as a function of the distortion of the mesh of the network body in the aligned state of the net threads against the mesh of the net body in auf ⁇ tensioned state of the network.
• the shape of the transformed character on the aligned network threads can also be obtained empirically by first marking the corner points of the original logo / character on the clamped network body, and then the network body, e.g. is transferred by applying a tensile force at the end points in the position in which the net threads are aligned and coated. Subsequently, the shape of the transformed logo / character can then be removed and transferred to a template.
• the shape and size of the transformed region in which the coating material is applied to the aligned net threads are preferably chosen such that this region in the state of the tensioned net substantially corresponds to the region defining the optically visible character.
• the transformed area in which the coating material is applied to the aligned net threads is greater than the area occupied by the mark / logo on the opened net .
• monochrome in particular white coating material is applied, and the optically visible character / logo is applied, for example.
• subsequently produced by coloring the coating material applied to the net threads which is e.g. can be done by printing the aligned net threads by means of a printing device, in particular an ink jet printer, or by manual spraying with spray paint.
• the entire network body can preferably also be coated on one side.
• the ratio of character size ie the length and / or width of a character
• the ratio of character size to mesh size is greater than 3: 1
• the above described NEN networks particularly striking optical effect results in particular when the ratio of character size to mesh size of the network in the range between 8: 1 and 20: 1, in particular in the range between 10: 1 and 16: 1, is located.
• the characters particularly preferably have a size of 70 cm, which corresponds to a ratio of 15.5: 1.
• the ratio of character size and mesh size can also be larger, and e.g. in the case of very large ball-catching nets, which have a height of several meters, they are in the range of 150: 1 or larger.
• the thickness of the layer of coating material applied by electrostatic flocking layer of coating material - depending on the mesh size of the network - preferably in a range between 10% and 600% of the thickness of the original net threads.
• the thickness of the applied coating material totals approximately 125% of the thickness of the original net threads, a high flexibility of the net threads and a very high resistance of the thickening material to mechanical removal result.
• the coating material and / or the adhesive and thus the character is applied auf ⁇ only on one side of the mesh body, so that the applied sign from the uncoated side is not recognizable. Furthermore, it can be provided that the coating material is applied to both sides of the mesh body in such a way that characters of different shape and / or color and / or size are generated on each side of the mesh body. This results the advantage that can be produced by the method according to the invention networks that have legible words or advertising slogans from both sides of the network body forth.
• the coating of the network body takes place immediately after the production of the network, preferably before opening the net threads.
• the production of the nets coated by the method according to the invention can again be designed to be considerably less expensive, since reorienting of the net threads is omitted in this case.
• the nets produced by the process according to the invention can be used in particular for the following purposes:
• protective nets in particular as restraint, collecting, side protection, visual protection, wind protection and bird protection nets, wherein in the construction sector the protective nets can be attached, for example, to scaffolding or to embankments,
• protective fencing arranged between posts or the like, such as screens or snow guard fences, as holding or restraining nets in motor vehicles, aircraft, ships or the like,
• nets for packaging and transport in particular as loading or tracing nets
• advertising networks in particular large-format advertising networks, which are spanned as advertising medium surfaces, for example on ⁇ ands of buildings, on rooftops, on tents or embankments, as advertising fences, banners or flags, preferably on one or more posts or masts, in particular mobile ones Posts or masts are spanned or stretched between them, whereby the advertising fences, banners or flags may be provided at sports events, on the edge of roads or race tracks, in the open field, on cranes or behind aircraft,
• the nets are also suitable as printed hammocks, printed fiber nets or camouflage nets with a correspondingly applied pattern, it also being possible to use the nets on trailers and / or with supports.
• FIG. 1 is a schematic view of a produced in accordance with the invention network in the clamped state
• FIG. 2 shows a schematic plan view of the NTetz of FIG. 1 after aligning the net threads on a surface and applying the coating material
• FIG. 3 is a schematic view of a section of a net according to the invention in the unfolded state, in which the meshes have a symmetrical hexagonal shape
• FIG. 4 shows a schematic plan view of the section of the net of FIG. 3 with strigo ⁇ surrounded net threads before the application of the coating material.
• a mesh net body 2 having a plurality of meshes ⁇ 4, the net threads through 6, and bounded by the example vertices A, B, C and D.
• an optically visible character or logo 8 is applied in the form of an "F", which is produced by coating in particular flocking the net threads 6 in the associated region 10 with coating material, in particular flock.
• this is arranged on a schematically indicated in Fig. 2 surface 12, and applied, for example, at the vertices A and C with an indicated by the arrows 16, 18 traction, such that the net threads 6 extending from the side A-B to the side DC when the net 1 is stretched are displaced substantially by a mesh width or mesh length, and - as shown in FIG. 2 - run substantially parallel to one another, so that the Areas of the transparent areas 14 of the mesh 4 with respect to the named ⁇ spanned network 1 (Fig. 1) are reduced in size.
• the distorted or transformed region 110 corresponding to the region 10 of the logo is coated with adhesive in the transformed region 110 by means of a template, not shown, and then preferably using an electrostatic field which is defined by the aligned network fibers 6 of the mesh body 2 and the surface 12 extends through, flocked in a known manner, or alternatively directly coated with a self-adhesive plastic foam material.
• the method according to the invention has the advantage that the height of the tensioned net 1, for example the distance between the points A and B in FIG can be reduced to only 0.3 m, so that the requirements for the Platzbe ⁇ may be considerably reduced for coating the Netzköpers 2 and also to the same extent to the Material ⁇ effort to create the template.
• the network body 2 which is only approximately 0.3 m wide and aligned in accordance with FIG. 2, can be directly and in a very simple manner by a conventional pressure device, for example an inkjet printer or thermosublimation printer can be printed with color to create a character or logo 8 in a height of about 8 m.
• a conventional pressure device for example an inkjet printer or thermosublimation printer can be printed with color to create a character or logo 8 in a height of about 8 m.
• a net with stitches 4 can be printed by the method according to the invention, in which the net threads 6 are not arranged at right angles to one another in the opened state are, as shown in FIG. 1 and FIG. 2, but enclose an angle of, in particular, 60 ° to each other, so that meshes 4 with a symmetrical hexagonal shape result, which layers in the manner shown in FIG be juxtaposed by moving the net threads in the position shown in Figure 4.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Theoretical Computer Science (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (4)

Family Cites Families (5)

• 2004
  • 2004-09-21 DE DE102004046019.1A patent/DE102004046019B4/de not_active Expired - Fee Related
• 2005
  • 2005-09-20 WO PCT/EP2005/010132 patent/WO2006032456A2/fr not_active Ceased
  • 2005-09-20 AT AT05787966T patent/ATE532166T1/de active
  • 2005-09-20 EP EP05787966A patent/EP1803111B1/fr not_active Expired - Lifetime

Non-Patent Citations (1)

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