DE10219217B3 - Object with picture built up from lines, e.g. for decoration, has line pattern eroded into main surface - Google Patents

Abstract

The object, e.g. a plate (1), is covered in foil (2) to produce a reflective and/or transparent layer on its main surface (3), on which the picture is made up of parallel lines differing in thickness along their length. The line pattern is produced in the main surface by erosion. The surfaces produced by the erosion are left rough. Their depth is 0.001 mm to 3.0 mm and their axial spacing is 1.8 mm to 3.0 mm.

Description

The invention relates to an object with at least one smooth main surface with a line image according to the preamble of claim 1 and a method for producing an object with at least one smooth main surface with a line image according to the generic term of claim 7.

The DE 31 22 133 A1 describes a mirror with picture elements, etc., in which a pattern is applied to a glass plate using, for example, screen printing using stencils. Wells are formed in the exposed areas. Color can be entered in the recesses. Then a mirror layer is applied. Such a mirror has significant disadvantages. Screen printing using stencils is difficult to produce; the ink must be removed later. The result is an inaccurate representation of the picture elements. If ink enters the wells, it must dry and harden over a long period of time. The paint weathered over time.

From the DE 42 34 567 A1 is a reflective surface with an image pattern is known, which consists of a plate made of glass or plastic with a reflective layer on the back. The reflection layer has photolithographically produced, pattern-like interruptions that are filled with color or not in one or more layers. The finished reflection layer is covered with a protective layer. The plate can only be produced in many individual steps, and is not weatherproof.

The applicant is aware of a plate to produce with image by satinizing a smooth surface of the plate. Here, the image is etched or Sandblasting as a roughened and therefore matt and opaque for glass surfaces shown.

The applicant is also known to print or paint a plate with an image. In this case, lacquer and / or color is applied to a surface of the plate in accordance with the image, with the front being painted or printed on in the case of metal plates and mirrors, while this can be done on the front or back in the case of glass plates. As an example in the DE 90 12 920 U1 described a mirror with deposited and applied picture elements.

For the design of advertising media such as signs or vehicles, registration is e.g. known this to be covered with foils. Therefor the images are digitized and with the help of software from a cutting plotter made of an adhesive film covered with a protective film is provided, cut. The part of the adhesive film is removed which should not appear as an image on the advertising medium, and then the other part of the adhesive film, which represents the picture, with a Transfer foil glued. Subsequently the protective film is removed from the picture and this is glued to the advertising medium. Finally the transfer film is peeled off.

For the display of images such as Photos is known to the applicant digitize a photo and use a program in one digital line pattern from a multitude of lines with different Strength to convert. This digital line pattern is different Ways representable, the photo-like character is retained and the presentation is similar looks like a black and white photo. In the illustration, the applicant is also aware of the line pattern Cut out of an adhesive film and stick on a surface.

These pictures have the disadvantage that they rot over time, especially in strong sunlight and other weather influences. Colors fade and become brittle, Films throw bubbles and lose adhesive strength. In particular, line images damaged during cleaning because it is partly very thin and therefore sensitive Lines and because cleaning agents can contain solvents.

The object of the invention is a Object with a line image and a method for producing a To create an object with a line picture, in which the picture is photo-like and is permanently displayed as a line pattern.

The tasks are characterized by the Features of claims 1 and 7 solved.

The new combination of the individual for themselves known process steps can Panels are created with line images that do not rot and which have special optical effects. It becomes a structural picture created where dependent effects different from the depth of the erosive machining can be achieved, which are further reinforced by lighting techniques can.

For the invention is any object with at least one smooth area applicable, independent on the thickness of the object. The invention also includes e.g. a cuboid, a cube or a pyramid; bodies with at least one curved surface should also be included his. Essential for the invention is that the object is at least a smooth, if necessary polished surface having.

Any representation is as picture defined, in particular pictorial representations (pictorial motifs), Photos, logos, letters and numbers as well as combinations thereof. A line picture is a form of representation of the picture.

Adhesive film with high adhesive strength is particularly good for deep erosive machining settable. With such an adhesive film, the adhesive of the adhesive layer is tougher and adheres better to the film and to the plate, so that the film cannot slip even during intensive erosive processing. In addition, the film is thicker, so that the mechanical stability is greater than with other films.

Surprisingly has been shown to be independent on the size of the image a center line spacing of 1.8 to 3.0 mm makes it easy to see the presentation of the picture results and at the same time special optical Guaranteed effects of the line image In particular, a center distance of approximately 2.4 mm leads to good results.

The materials for the plate according to claims 3 to 6 are commercially available and are easy to edit. Each material has a different one optical effect.

The invention is simplified based on illustrated figures further explained. Show it

1 a plan view of a plate with glued line pattern made of foil,

2 an enlarged cross section through part of a plate made of metal,

3 an enlarged cross section through part of another plate

and 4 an enlarged cross section through part of another plate.

example 1

How out 1 can be seen on a surface of a plate 1 made of metal a line pattern from a variety - here white - lines made of foil 2 educated.

The process of making the plate 1 with line image begins with scanning a template, eg a photo or a printed product, to a digital file. This is done with the help of a commercially available scanner and computer. The quality depends on the resolution of the scanner.

If the template is already in digital Form is not available this step.

The digital file is made with the computer converted to a line pattern of lines of variable thickness. The line here is a linear one Strips defined, where for the line pattern between two lines encloses a free linear surface is. The line pattern consists of a multitude of such lines, which is flat to evenly spaced and extend parallel axes. The strength (or Height) everyone Line varies across the length the line so that the edges the line at irregular intervals run from the axis. Here, the distances between the two margins be unbalanced, that is, the edges have to are not the same. The course of the edges and thus the strength of everyone Line is dependent on every point from the light-dark course of the template and thus from the one to be generated Representation of the image that emerges as a line pattern from the whole of lines.

The distance between the axes of the lines is for each line pattern is approximately the same size and is 1.8 mm to 3.0 mm, preferably in about 2.4 mm. That means the number of lines for a given Amount of Line image is constant.

The conversion of the digital file in the line pattern is done with commercially available software.

The line pattern created in this way is placed on a resistant film 2 transferred by cutting. For this purpose, the digital data of the line pattern are transferred from the computer to a cutting plotter, in which the film 2 is clamped and the edges of the lines according to the line pattern on the film 2 travels along with a cutting device. That is, the slide 2 forms a surface traversed by linear cuts, in which the parts to be removed between the lines are still present. The foil 2 is for example a one-sided adhesive film with protective film on the adhesive layer, the film 2 is mechanically resistant to, for example, sandblasting and / or chemically to etching agents. The cutting depth of the cutting device is set so that the film 2 , but not the protective film is cut. The finished cut film 2 is removed from the cutter and, if necessary, trimmed at the edges according to the size of the line pattern.

The cut foil 2 is exposed, that is, the line-like parts of the film 2 removed that are between the lines of the line pattern and not later on the plate 1 should be glued and there the partial surfaces of the plate to be processed 1 set free. A line pattern is now visible, with the cut and exposed film 2 is held on the protective film.

The exposure of the film 2 can also be done later.

This exposed slide 2 is covered with a transfer film on the side facing away from the protective film. The transfer film is a one-sided adhesive film made of, for example, paper or non-woven fabric with low adhesive force and causes the line pattern to be removed when the protective film is later removed and applied to the surface of the plate 1 is held immovable.

For applying the line pattern to the surface of the plate 1 the protective film is removed from the side of the film coated with adhesive 2 removed and the slide 2 , which is now held in shape by the transfer film, glued to the surface in such a way that the alignment and the edge distances defined by the line pattern are observed. For records 1 The foil is made of metal as in this example 2 always glued to the smooth and possibly polished surface, which will later be machined erosively.

The transfer film is removed from the film 2 ent removed.

On the plate 1 is that in now 1 shown, here 7.9 cm high line pattern formed from a multitude of lines. The lines consist of the foil 2 that are on the surface of the plate 1 sticks. The alignment of the lines is parallel and preferably horizontal. The thirty-two lines in this example are designed such that the line pattern depicts a clock. In this processing state, this line pattern is depicted as a negative, that is, light areas appear dark and vice versa.

The surface of the plate 1 with the lines of foil 2 is processed erosively in the next step, for example by sandblasting or etching. This is the exposed surface of the plate 1 at least roughened and appears milky-light. That from the foil 2 covered areas are protected; they therefore remain unprocessed and smooth; they appear on the finished plate 1 with dark lines.

How out 2 the front of the plate can be seen 1 after the erosive processing with the lines of foil 2 pasted. Between the lines of foil 2 is the exposed surface 3 the plate 1 as a result of the erosive processing, that is, the erosive processing has not penetrated deep into the material and has the exposed surfaces 3 just roughened so far that they are matt.

After the erosive processing, the film 2 - or more precisely, the lines made of foil 2 - from the plate 1 removed and cleaned if necessary.

The plate 1 with line drawing is now finished.

Example 2

The embodiment according to 3 differs from example 1 in that the line image on the back of a plate 1 made of glass. Here, the erosive processing is deep into the exposed surface 3 the plate 1 penetrated and made them dull and opaque. The plate 1 with line picture has a great crystal effect. In this intensive erosive processing, the film is thicker and has a higher adhesive strength than in Example 1.

Alternatively, the plate 1 be made of plastic.

Example 3

The embodiment according to 4 differs from example 1 in that the line image on the back of a plate 1 is made of glass, the back with a layer 4 is mirrored. The erosive processing is at least as deep in the exposed surface 3 penetrated that layer here 4 is completely removed.

In the various embodiments, the plate is 1 eg made of clear, transparent glass or plastic, one of the (main) surfaces can be mirrored, or made of metal. Here, the process is on any of the surfaces - i.e. front and / or back - of the plate 1 applicable, each with different effects. In the case of mirrored surfaces, the erosive processing goes at least so deep that the mirror layer on the exposed surface 3 Will get removed.

The intensity of the erosive machining depends on the optical effects to be achieved and on the thickness of the plate 1 , The deeper this processing penetrates into the surface, the more effective it is, for example, to cast shadows (crystal effect) and / or for glass the effects of backlighting or edge flooding (lighting through the edges of the glass plate). The machining depth - this is the depth of penetration of the erosive machining into the surface of the plate 1 - is approx. 0.001 mm for satin finishing and approx. 3 mm for deep jets and can vary within a line image.

The 2 to 4 are out of scale; the size relationships of, for example, film and processing depth are therefore not correctly reproduced.

It is expressly pointed out once again that in the last process step the lines made of foil 2 from the plate 1 be removed. The plate 1 with line picture therefore consists exclusively of the material of the plate 1 , if necessary with the layer 4 ,

Claims (11)

Object with at least one smooth main surface with a line image, the object being reflective and / or transparent on the main surface and the line image having a pattern of lines, the axes of the lines running parallel and the thickness of the lines along their length to represent the image Axes are different, characterized in that the line pattern is erosively incorporated into the main surface, the erosively incorporated surfaces are rough and the depth of the erosive incorporation is 0.001 mm to 3.0 mm and the center distance of the lines 1.8 mm to 3, Is 0 mm. Article according to claim 1, characterized in that the The center distance of the lines is approximately 2.4 mm. Object according to one of claims 1 or 2, characterized in that the object ( 1 ) is made of glass. Article according to one of claims 1 or 2, characterized in that the object ( 1 ) is made of plastic. Object according to one of claims 1 to 4, characterized in that the object ( 1 ) is mirrored. Object according to one of claims 1 or 2, characterized in that the object ( 1 ) is made of metal. A method for producing an object with at least one smooth main surface with a line image, the object being designed to be reflective and / or transparent on the main surface, with the following steps: converting a digital file of an image into a digital line pattern from lines whose axes are parallel , whose thickness is different along the axes and whose center distance is 1.8 mm to 3.0 mm, - transfer of the digital line pattern onto a film ( 2 ) by cutting the line pattern, - exposing the spaces between the lines, - covering the film with the line pattern ( 2 ) with a transfer film, - apply the film ( 2 ) with the transfer film on a main surface of the object ( 1 ), - removing the transfer film, - erosive processing of the part with the film ( 2 ) covered main surface of the object ( 1 ), the depth of editing 0 , 001 mm to 3.0 mm, - and removing the film ( 2 ) from the surface of the object ( 1 ). A method according to claim 7, characterized in that as a film ( 2 ) an adhesive film is used which is mechanically resistant to sandblasting and / or chemically resistant to etching agents. Method according to one of claims 7 to 8, characterized in that that the main area processed by blasting with abrasive agents. Method according to one of claims 7 to 8, characterized in that that the main area by etching is processed. Method according to one of claims 7 to 10, characterized in that that the center distance of the lines is set to approximately 2.4 mm.