DE1497703C3 - Process for the production of colored, roll-up relief maps from plastic film - Google Patents

Claims (1)

Claim: Process for the production of colored roll-up relief maps made of plastic film a relief shape is produced and provided with surface markings, the surface markings transferred to a cling film and copied from this onto an opaque plastic film which are thermoplastic on the relief form by means of a deep-drawing device to form the relief map is shaped, characterized in that that a cling film and a plastic film provided with the same square lines are deep-drawn, the plastic film on the relief form, with surface markings accordingly provided with a map and drawn flat again, the lined cling film with the non-lined cling film is immovably connected and the surface markings of the Flat-drawn plastic film can be transferred to the non-lined cling film, with the through the lines on the cling film formed squares with the associated distorted squares on the plastic film one after the other as possible to coincide and thereby the distortions be compensated that the cling film as a template for further thermoforming plastic films serves that map parts produced in this way to form a large relief map Connect the edge strips and that on the back of the relief map Lugs are attached into which bars are inserted to align the card in the horizontal direction will. The application relates to a method for producing colored, roll-up relief maps Plastic film in which a relief shape is produced and provided with surface markings that Transfer surface markings to a cling film and from this to an opaque plastic film are copied, which thermoplastic on the relief form by means of a deep-drawing device to the relief map is shaped. According to this known method according to US Pat. No. 93,439, only relief maps of up to a width of 1300 mm can be produced with sufficient accuracy. In addition, there are no screen printing devices, the one printing (coloring) of the plastic film allow greater width. Also deep-drawing devices for thermal foil deformation ia- der required size for a larger relief map are not available. Furthermore, the production of Large relief maps by thermoplastic deformation of a correspondingly large film because the Maps of the deformed film cannot be used because of the tension. Large relief maps are therefore made from two or more partial cards. However, the individually produced partial cards instruct the places to be joined as a result of the printing, the deep drawing and the deformation of the film structural distortions, whereby no satisfactory and precise gluing of the partial maps is achieved can be. Bonding the registration points under tension leads to distortions in the plastic material, in the printed image and in the three-dimensional effect of the desired large relief. In addition, it is also rollable severely impaired, and the splices suffer significant bending and tension Damage that has recently rendered the entire relief map unusable. A welding of the mating tracks is ίο just as difficult as sticking. The invention is based on the problem of solving these difficulties with regard to the production of relief maps to avoid two or more individual relief pieces and the cartographic accuracy, as well as to ensure the plastic effect and good rollability of the relief maps. This object is achieved by the method laid down in the patent claim.
The smaller the squares are selected, the more precisely the interpolation can be carried out, that is to say that a depiction of the flattened colored relief that is as true to scale as possible can be carried out. In addition to the optically recognizable large squares, color flaws intentionally made in the printed image of the lines facilitate orientation. After this marking on the transparent film serving as a printing template, color separations are made. According to these templates are by means of a printing system, for. B. screen printing machine, plastic films printed and thermoformed (thermoplastically deformed) on the relief form used first, whereby the Foils must be inserted according to the markings on the edge. The relief maps produced coincide in all details of their color coloring with the thermoforming (thermoplastic Deformation) produced contours. This process can now be used with the color separations produced print any number of plastic foils and shape them into plastic reliefs. In the Manufacture of plastic large relief maps, the individual map parts produced are designed in such a way that these have the shape of the landscape of the pasted-over part of the respective connection card at their adhesive edges. These adhesive strips can be used both by expanding the relief shape and by inserting so-called Intermediate pieces can be achieved. Since the morphological deformed adhesive strips at the connection points by the process of Deep drawing and reshaping with regard to the different contours of the individual relief sections differently distort, a very thorough and precise interpolation is required at this point. The individual relief sections of a large relief map can be glued or welded after the clamping edge has been cut at the connection points beforehand.
A large relief map produced in this way remains elastic despite the adhesive strips and can be rolled up. On the back of the large relief map, tabs are glued or welded in the horizontal direction, into which thin strips are inserted for alignment. Narrow PVC strips can also be glued in or welded in at the location of the strips.