EP3409379A1 - Device for magnetic printing, manufacturing method and use - Google Patents

Abstract

The invention relates to magnetic printing. For this purpose, a printing device (10) is provided which has a pressure surface (11) with a first region and a second region, the first region and the second region at least partially adjoining one another and forming at least one boundary line (28). Furthermore, the first region is a first magnetic region (24) and part of a first magnetic volume (20). Here, the magnetic volume (20) on a first magnetic pole (21) and a second magnetic pole (22), wherein the first magnetic pole (21) of the pressure surface (11) facing and the second magnetic pole (22) of the pressure surface (11) is turned away. Further, the boundary line (28) a contour (32) on a substrate to be printed (31) hervorufbar, wherein the printing device (10) has a thickness of less than one millimeter, wherein the printing device (10) is flexible and wherein the pressure surface (11) is compressible.

Description

The invention relates to the technical field of printing technology. In particular, the invention relates to a printing device, a method for producing a printing device, a use of a printing device, in particular the use of a printing device in a printing press.

In the printing technique hitherto, methods are known which make use of the physical phenomenon or are based on the effect of the magnetism in order to effect optical effects on a printed product. It is known to use paints or coatings with magnetically orientable particles, which interact with the printing device. However, the previously known techniques have the disadvantage that they are expensive and can provide very cumbersome or not at all individually according to data specifications printed products.

It is an object of the present invention to provide a solution to cause in the field of printing technology in a simple way optical effects with magnetic means.

This object is achieved with the subjects of the independent claims. Further preferred embodiments of the invention are disclosed in the dependent claims.

The object of the invention is achieved with a printing device having a printing surface with a first region and a second region, wherein the first region and the second region at least partially adjoin one another and form at least one boundary line. Furthermore, the first region is a first magnetic region and part of a first magnetic volume. Here, the magnetic volume has a first magnetic pole and a second magnetic pole, wherein the first magnetic pole facing the pressure surface and the second magnetic pole facing away from the pressure surface. Further, with the boundary line, a contour can be produced on a substrate to be printed, wherein the printing device has a thickness of less than one millimeter, wherein the printing device is flexible and wherein the printing surface is compressible.

The printing device according to the invention can also be referred to as "printing form", cliché ", magnetic form" or "magnetic film". The printing device or the cliché has a printing surface or printing side, which faces the substrate to be printed in the intended use and a mounting side, which can be mounted on a substrate, for example on a pad, platen or impression cylinder. Any size of cliché may be provided, for example, having an outer dimension of about 1000 mm x about 675 mm or about 1000 mm x about 750 mm (mm = millimeter). Other external dimensions are also possible. Furthermore, it is preferred that the cliché or the printing device produced have a material thickness (thickness) of less than one millimeter, preferably of only about 0.8 mm, with a tolerance range of about ± 0.1 mm. In this case, the cliché is preferably flexible.

Accordingly, a printing apparatus is provided, for example a printing plate or a printing film, which has at least one first area and at least one second area. The printing device can also be understood as a printing plate. The printing device can be referred to as a cliché, printing plate and printing film or magnetic film.

A "volume" is understood to mean a three-dimensional extent. In the present case, an "interface" is to be understood as meaning an area that adjoins a volume, wherein the area may be formed as a two-dimensional surface or as a three-dimensional surface. Likewise, a region such as the first and second regions of the printing device may be a two-dimensional as well as a three-dimensional surface. A three-dimensional surface arises when a flat surface is curved or otherwise deformed. Further, "printing surface" is understood to mean an area suitable for magnetic printing. In this case, the printing surface itself can have a magnetic region, ie the magnetic region is part of the printing surface. Furthermore, it is also possible that the pressure surface itself does not have the magnetic region, but the magnetic region acts only on the pressure surface, so that, for example, the magnetic region is arranged below the pressure surface and the pressure surface is formed, for example, by a coating.

A transition between two areas (magnetic area and non-magnetic area or magnetic area and magnetic area) forms a boundary line on the printing surface or at least below the surface of the printing device in a two-dimensional view as well as a three-dimensional view. This boundary line is part of a flat boundary layer, which may be flat, that is, two-dimensional, or even three-dimensional, and which forms in three-dimensional viewing by an abutment of two volumes, for example a magnetic volume and a non-magnetic volume. The boundary line causes a sudden transition between a magnetic region and a non-magnetic region.

With the printing device optically appearing three-dimensional contours can be effected, the course of the boundary line on the pressure surface between the two areas predetermines the shape of the contour. In this case, a two-dimensional or three-dimensional geometry is to be provided under area which lies arbitrarily in space and is part of the printing surface or at least has an effect on the magnetic printing below the printing surface. In a planar printing surface which is preferred, the first and second regions are a surface which forms at its common interface a boundary lying on the printing surface or below the printing surface and magnetically orientable particles of a paint or varnish in the vicinity of Can affect pressure surface.

It can be provided that the magnetic volume is formed by a permanent magnet. In this case, one pole of the permanent magnet can form a first pole of the magnetic volume and a second pole of the permanent magnet can form a second pole of the magnetic volume. For printing a substrate, a plurality of magnetic volumes can be used to form boundary lines of arbitrary shape.

A permanent magnet can be understood as a magnetic volume that permanently provides a magnetic effect in terms of time. The use of one or more permanent magnets has the advantage that with the printing device permanent magnetic effect can be provided. In this way, it is possible to use the printing device multiple times or to use, so that the printing device is reusable, since the magnetic effect of a permanent magnet seen in terms of time not or only slightly changed and long-term at the formed borderline to non-magnetic material provides a magnetic effect that can be used technically.

Furthermore, it can be provided in a further embodiment of the printing device that the printing device is designed as a film or "magnetic film". The film can also have permanent magnets or areas with magnetic effect, which is permanent.

Under a "foil" is understood in the field of printing technology, a metal or plastic sheet. A film has the advantage that it has a small thickness. Furthermore, it is advantageous if the film is flexible in order to be able to adapt to a predetermined geometry, for example a cylinder or a roll of a printing press. Furthermore, it is advantageous that a film can have any geometry and size of the printing surface. For example, the printing device made as a film may have a thickness of about 0.8 mm or less. Furthermore, the size of the printing device can be sized according to specifications of a printing press. Thus, by using a foil, the field of application of the printing device can be extended with respect to any printing press. Further, the film may be applied to a substrate, for example a substrate having adhesive or adhesive properties, e.g. to allow attachment of the film on a pressure roller.

In the case of a printing operation it can be provided that paint or lacquer with particles or pigments is applied to the substrate, the particles or pigments being magnetically orientable. In this way, it is possible that the magnetically orientable particles align with respect to the boundary line of the printing device. Due to the exit of magnetic field lines at the boundary line, the magnetically orientable particles or magnetically orientable pigments tend to align along the magnetic field lines as well. It has been found that optical effects can be effected in this way. The magnetic area in the intended use during a printing operation acts on color particles with magnetic properties, so that a magnetically orientable particles or magnetically orientable pigments provide a three-dimensional optical effect on the printed product. Thus, it can be provided that the boundary line determines a printed image that causes three-dimensional optical effects by the pressure surface in the intended use interacts with color particles of a printing ink or a printing varnish. As used herein, the term "paint" and "paint" are used equivalently, as both types of coatings are suitable for having magnetically orientable particles. The terms "roller" or "pressure roller" and "cylinder" or "impression cylinder" are equally used in the present context, since both types are suitable as substrate-carrying devices to attach to it one or more printing devices according to the invention.

The printing device according to the invention acts, for example, in a printing process through the substrate to be printed on the color or paint application of the front of the substrate, without necessarily coming into contact with this, since the magnetic effect of the printing device in the millimeter range magnetic forces can exercise. It is advantageous to print with contact between the printing device and the substrate, since then the weak magnetic effect of the printing device can work better. Here, a direct contacting of printing device and substrate is desired, wherein the printing surface of the printing device on the back of the substrate during printing is flat or at least partially flat. This means that the printing device is present on the substrate back side, which is not printed, and the effects of the printing device on the front side of the substrate, i. on the print side, appear.

Overall, the boundary line or a plurality of boundary lines of the printing device according to the invention is used to enable magnetic printing on a substrate by means of the printing device according to the invention. Here, contiguous boundary lines can be formed, for example as a border of a letter. Also, separate boundary lines may be used to print two parallel lines, for example, with two straight boundary lines. Preferably, the printing device produces decorative effects when printing a printed product. Here, an image determines the appearance of the decorative effects.

The term "magnetic printing" in the present context is understood to mean printing on a substrate without there being any mechanical action for imaging an image in the form of a pattern, a lettering or the like on the substrate. The printing of the image is based solely on a magnetic Effect of the printing device, which cooperates in its intended use with magnetically orientable elements in a paint or a varnish, which is applied to the substrate. By specifying the image with its boundary lines, effects are transferred to a substrate to be printed. Thus, there is an "effect transfer", which in the present context is understood as printing or magnetic printing.

In this context, "image" is understood to mean a contour or a printing result on a substrate, which are caused by the printing effects of the printing device. The substrate may have any images, such as lines, shapes, letters, patterns, or the like. "Printed matter" is understood to mean the printed substrate with the image.

In a preferred embodiment of the printing device according to the invention, it can be provided that the second region is a non-magnetic region.

Accordingly, there is provided a printing device, the printing device having a printing surface with at least one magnetic region and at least one non-magnetic region, wherein one of the magnetic regions and one of the non-magnetic regions at least partially adjoin one another and at least one boundary line on the printing surface or form below the pressure surface, and for example, the boundary line runs parallel to the pressure surface. Here, the magnetic region is part of a magnetic volume, wherein the magnetic volume has a first magnetic pole and a second magnetic pole. In this case, the first magnetic pole faces the printing surface and the second magnetic pole faces away from the printing surface. Furthermore, with the boundary line a contour on a substrate to be printed hervorufbar.

In this embodiment, the transition between a magnetic and a non-magnetic region or a magnetic and a non-magnetic volume is used to provide as possible a sudden transition between the two areas. This sudden transition in the form of an interface in three-dimensional or in the form of a boundary line in two-dimensional view is used to magnetic effects, in particular the course of magnetic field lines, technically to use to effect optical effects on a printed product. With the boundary line, a magnetic effect on a printed product can be evoked.

The boundary line between a magnetic region and a non-magnetic region is used to replicate letters, lines or patterns with the boundary line, for example. Thus, the boundary can take any shape. As it were, the boundary line describes a substrate to be printed, without the boundary line emerging from the surface of the printing form. Due to the magnetic effect of the boundary line on the substrate to be printed, the printed product can be magnetically described or printed. This uses the magnetic effect at a material transition of a magnetic and a non-magnetic material.

In a further preferred embodiment of the printing device, it can be provided that the second region of the printing surface is a second magnetic region, which is part of a second magnetic volume, wherein the second magnetic volume has a first magnetic pole and a second magnetic pole. Furthermore, it can be provided that the two magnetic regions are aligned differently with respect to their magnetic poles.

Accordingly, the printing device has at least four magnetic poles, two north poles and two south poles each. The orientation of the poles is formed alternately on the pressure surface, so that at least one north pole and at least one south pole face the pressure surface and unfold their magnetic effect on the magnetically orientable particles.

In a further embodiment it can be provided that the printing device has a plurality of magnetic regions, wherein at least two magnetic regions are aligned identically with respect to their magnetic poles.

In addition to the plurality of magnetic regions, it may also be provided that the printing device has a plurality of non-magnetic regions. These may for example be arranged in each case between two magnetic regions. Further, it is possible for all magnetic areas of the printing surface to be similarly aligned with respect to their magnetic poles.

Under a similar orientation of the magnetic regions is to be understood that the existing magnetic poles are arranged with a magnetic north pole and a magnetic south pole in each case in the same direction. It can be provided, for example, that all magnetic areas facing the printing surface have the magnetic north pole. Accordingly, in each case the magnetic south pole of each magnetic region of the printing surface can be remote. Alternatively, it can be provided that all magnetic regions which face the printing surface have the magnetic south pole. Accordingly, in each case the magnetic north pole of a region of the printing surface can be turned away.

As an alternative embodiment, the magnetic poles may also be oriented differently. For example, North Pole and Südpolvolumen can be arranged side by side within a printing form. The arrangement may be direct, i. without further non-magnetic volume therebetween, wherein at least one north pole and one south pole are arranged side by side and each face the substrate. Further, the arrangement of the magnetic poles may also indirectly side by side facing the substrate, i. between the magnetic poles another non-magnetic volume is arranged.

According to a further embodiment of the printing device can be provided that at least one of the regions is formed by a polymer.

A polymer is understood to mean any plastic which has no or almost no magnetic properties. One or more non-magnetic regions can be formed from this polymer. Also, different polymers or polymer blends can be used for a single printing device. For this purpose, the polymer can be admixed with magnetic or magnetizable material for the formation of magnetic regions.

A polymer has the advantage of easily joining two different areas of a printing surface, such as a magnetic and a non-magnetic area, without gaps. A positive connection between a magnetic volume and a non-magnetic volume or another Magnetic volume, can form a boundary line to the magnetic printing, which is sharp in its contour and thus particularly suitable for magnetic printing. Suitable polymers may be epoxy resins, polyethylene and polyurethane. Further, polymers for providing the magnetic volume may also be used by adding to this polymer a carrier having magnetic properties. In this way, for example, two different polymers can be used to produce the printing device. Thus, non-magnetic as well as magnetizable polymers can be used.

In an advantageous embodiment of the printing device according to the invention can be provided that the printing device has an image with complex structures.

It can be provided with the printing device arbitrary images. This is possible because the printing device according to the invention is easy to produce. The images produce a desired printing effect and reproduce the given structures on a printed substrate. Arbitrary images also include complex structures, such as figures or patterns that deviate from the usual printable basic geometries with simple shapes such as squares, circles or triangles. For example, the printing device can be used to print a landscape, vehicles or house structures that were previously created, for example, in a digital data format. In particular, this is easily possible if a data processing system is used to effect processing of the raw magnetic film due to the digital data. Magnetic and non-magnetic areas on the raw magnetic foil are defined by the data of the image and thus the contours of the image are defined.

Furthermore, it can be provided that the pressure surface has a curvature when used as intended.

This is possible, for example, if the printing device has a small thickness and is flexible, so that it can adapt to, for example, a curvature on the circumference of a pressure roller or a printing cylinder. This is easily possible if the printing device is designed as a printing film. Accordingly, the printing device has a radius or bending radius when used as intended. If the printing device is elastically deformable, it can be stored in a flat shape for storage assume and take the intended use of the shape of a circumference or partial circumference of a pressure roller or a printing cylinder and attached thereto.

In a further embodiment of the printing device can be provided that the printing device has a coating.

Such a coating may be provided on the underside and / or the top of the printing device. Here, "upper side" of the printing device is understood to be the side or surface of the printing device which faces the printed product in its intended use. In other words, the upper side of the printing device has the printing surface. Accordingly, the "bottom side" of the printing device is understood to be the side or surface of the printing device which faces away from the printed product in its intended use. Accordingly, the underside of the printing device can be attached, for example, to a roller or cylinder of a printing press. In this case, it may be advantageous that the underside of the printing device has an adhesive surface in the form of a coating. It can also be provided that, instead of a full-surface coating on the underside of the printing device, a partially planar or selectively applied adhesive material is present in order to secure the printing device to a substrate, such as a pressure roller, or at least fix it. Furthermore, it may be advantageous that the upper side of the printing device has a layer which serves, for example, as a protective layer.

A coating on the top may be formed of one or more layers of material that will allow the magnetic effects of the magnetic regions underneath the coating to pass unimpeded. Thus, advantageously, the coating on the top of the printing device is magnetically ineffective. Further, the coating on top of the printing device may be used as a protective layer that mechanically protects the magnetic and non-magnetic regions just below the protective layer. This has the advantage that even with repeated use of the printing device, the magnetic and non-magnetic areas are not worn or damaged. The coating as a protective layer at the top of the printing device is advantageously uniformly smooth over the entire surface.

Furthermore, the present invention relates to a manufacturing method for a printing device. Here, the method comprises providing a first region, for example a magnetic region, and a second region, for example a non-magnetic region. Furthermore, the method comprises arranging the first region and the second region such that the first region and the second region adjoin one another and form a borderline, wherein the first region is part of a magnetic volume and the magnetic volume has a first magnetic pole and a first magnetic field second magnetic pole, wherein the first magnetic pole facing the pressure surface and the second magnetic pole facing away from the pressure surface. Furthermore, in this case a contour on a substrate to be printed can be produced with the boundary line. It is provided that the printing device has a thickness of less than one millimeter and is flexible. In addition, the printing surface is compressible.

With the boundary line, in the intended use of the printing device, an optical effect or an image on a substrate can be effected in order to produce a printed product.

In a further embodiment of the method, a provision of a raw magnetic film can be provided, onto which an image is transferred to the raw magnetic film in a processing operation, wherein edges are formed in the processing operation of the raw magnetic film on which magnetic field lines are formed. Further, the method may include casting the raw magnetic film with a non-magnetic polymer and forming a uniform thickness of the printing device.

For the production of the printing device, a raw magnetic film is used, which is processed and coated in the manufacturing method according to the invention. The production process according to the invention or the production process according to the invention provides a printing device or a magnetic film which has a layer structure. Within the layer structure, magnetic volumes and non-magnetic volumes as well as cover layers may be present.

Preferably, the magnetic adhesion force of the raw magnetic film is in the range of about 0.15 N / cm ² to about 0.7 N / cm ² , preferably in the range of about 0.3 N / cm ² to about 0.5 N / cm ² , preferably 0.4 N / cm ² . This means that the raw magnetic film has a relatively weak magnetic force sufficient to achieve magnetic printing. Advantageously, the raw magnetic film is an anisotropic film, ie it is initially unmagnetized, which is then magnetizable.

The thickness of the raw magnetic film is in a range of about 0.4 mm to 0.6 mm, preferably about 0.5 mm. The production method according to the invention provides printing devices or magnetic foils having a thickness in the range from about 0.7 mm to about 0.9 mm. It can therefore be made a printing devices as a thin magnetic film. The size (area) of the raw magnetic film is different and can be adapted to the intended use, such as printing press, printing process and print format.

Preferably, particles are used for printing a printing material or a material, for example, magnetically alignable pigments or particles in a size of about 8 microns to about 12 microns, preferably about 9 microns to about 11 microns, more preferably about 10 microns.

The invention makes use of the fact of magnetic attraction, i. that field lines emerge at the north pole of the magnet and enter at the south pole. By processing a raw magnetic film, an image is transferred to it. It uses data that defines forms that correspond to the later printed effect, such as logos, fonts, elements, etc. The data is preferably stored as digital data in the form of vector data, for example in pdf format (pdf = portable document format). made available. The application of the data is comparable to that of a stamping die, i. they are contour lines in the form of vector data.

By processing the raw magnetic film, it is "destroyed" and magnetic field lines can form along the edges, which determine the orientation of the iron-containing pigments in the paint / ink during the printing process.

This is followed by the separation of the unwanted picture elements from the raw magnetic film. In a final step, the magnetic surfaces are incorporated into a polymer layer. For this, the prepared magnetic foil in a Potting device placed. In this device, the magnetic film is poured over as an intermediate produced with a liquid polymer. The deeper areas between the individual magnetic areas are filled in and the magnetic shape gets a uniform height. After curing of the polymer, the magnetic form or printing device is ready for a printing operation.

The produced magnetic form is flexible, hard-wearing, bendable, compressible and has a smooth and uniform surface. The thickness of the entire structure of the magnetic mold is preferably about 0.8 mm. The preferably compressibility is advantageous during the printing process, since the printing surface can adapt to the circumstances. This means that the printing device is flexible in thickness and can adapt to its printing environment. This adjustment is reversible, so that after a temporary pressing of the printing device, for example, to a counter-pressure roller, the original thickness of the printing device returns.

A final fixation of the magnetic form in the printing machine depends on the printing method, the type of printing press and, if necessary, technical features. In all printing processes, the magnetic form can be glued on and either directly during the paint / color application or immediately after their effect unfolds.

In one embodiment of the method, it can be provided that at least one magnetic region by casting a magnetic material, cutting out a magnetic material, by punching a magnetic material, by printing a magnetic material, in particular 3D printing (three-dimensional printing), and / or by Using a magnetic fluid or paste is provided.

Here, a magnetic "paste" is understood to mean a material which has a higher viscosity than a liquid and is a composition which has at least one substance which has magnetic properties and is permanently magnetizable in order to provide magnetic properties of the printing device. Instead of a raw magnetic film, a "paste" can be used. An anisotropic paste can be printed, for example, in 3D printing, and then magnetized.

In this case, it is possible to use a paste-like mass for producing the printing device, which can be cast, pressed, sprayed or printed in 3D printing, for example. The magnetic paste can be prepared as a basic substance by a polymer. Further, in addition to the magnetic properties, the magnetic paste may have other properties by admixing other substances, for example, a substance for ultraviolet light stability or a substance for hydrophobic or hydrophilic properties.

Accordingly, it is possible to integrate prefabricated magnetic volumes in the printing device. Alternatively, it is also possible for a magnetization of an existing material, for example a magnetic paste, to be carried out during the production of the printing device as a work step.

In a further exemplary embodiment of the method, it can be provided that a first shaping of the first area and a second shaping of the second area are provided by specifying a data structure.

The specification of the geometry of the individual regions preferably takes place digitally in a data structure; in particular, a profile of the boundary line is formed by parameters in the data structure. In this way, it is possible to digitally program a printing device to subsequently, in machine, or at least partially, machine the printing device using the programmed data default.

Thus, data specifications can be specified in the form of a data structure to be printed as a contour or as an image. The specification of the contours takes place for example in the form of a digital file with predefined file format under definition of the contours. In this case, for example, vector data are used. Structures can be printed as an image, especially very complex structures. A corresponding printing device can be produced according to individual specifications, so that any shaped images can be printed with the printing device by digitally imaging the boundary lines between the magnetic and non-magnetic regions. Thus, the printing device according to the invention can be used in many ways, for example to print fonts, patterns, logos or other geometric shapes can. With the printing device according to the invention, any images can be printed without rigid materials, such as permanent magnets having to be processed.

In a further embodiment of the method, a creation of a data structure can be provided, which specifies the image for the printing device.

In a further embodiment, the method may further comprise transferring the image to the raw magnetic film with a data processing system.

The manufacturing process can be carried out completely or at least partially computer-aided. The image for the printing device is easily available with a digital data structure, so that the image can be transferred to the raw magnetic film.

Furthermore, the invention relates to a use of a printing device for magnetic printing using a layer with magnetically orientable particles, which can be applied to a substrate surface of a substrate. In this case, it is provided that the printing device acts on this substrate surface by the printing device acting through the substrate to be printed.

The layer used is, for example, a paint or a varnish, each having magnetic properties, for example caused by magnetically orientable particles or magnetically orientable pigments or particles or pigments having magnetic properties which have been admixed with the paint or the paint. The printing device is correspondingly applied to the substrate, wherein the printing device passes through the substrate, so that on a first side of the substrate, the printing device is arranged and on a second side, opposite to the first side, the layer are applied with magnetic properties in a printing operation can.

In this way, the printing device does not come in contact with the paint or the paint and can be used repeatedly without wear. A color change is done by the choice of color, without the printing device needs to be cleaned for a color change.

In a further embodiment of the use of the printing device, it is provided that the printing device is mounted on a roller of a printing press and in a printing operation, the substrate with its substrate rear surface, the printing device contacted surface, and being aligned on the substrate surface as the front side of the substrate magnetically orientable particles.

The printing apparatus is particularly suitable for use in a printing press because the printing apparatus is easy to assemble and disassemble. Due to the flexibility of the printing device, any desired roller size can be used without having to make any changes to the printing device.

Furthermore, the invention relates to a printing press. In this case, the printing press has at least one roller or a cylinder, a feed device for a substrate or printing medium and an ink supply device or paint supply device for feeding a paint or a paint, wherein the paint or the paint has magnetically orientable particles. It can be provided that on the roller or the cylinder, a printing device is arranged, which has at least one magnetic region. In this case, with the printing press a printed product can be produced by a magnetic effect of the at least one magnetic region of the printing device. It is further provided that at least one magnetic region of the printing device acts on the magnetically orientable particles during a printing process of the printing press and the magnetically orientable particles can be aligned by this effect and a contour on the substrate to be printed hervorufbar. Furthermore, it can be provided that at least one magnetic region of the printing device acts on the magnetically orientable particles through the substrate to be printed or to be coated during a printing process with a printing press. Contact between the printing device and the substrate back is made to cause magnetic printing on the front surface of the substrate. This means that the magnetic effect on printing is effected from the back of the substrate.

It is therefore proposed a printing machine, which can be equipped with the printing device according to the invention in order to produce a printed product, based on a magnetic effect of the printing device, the magnetic Particles interact during the printing process with a magnetic portion of the printing device.

In one embodiment of the printing press, it may be provided that the printing press is an offset rotary printing press, a flexo rotary printing press, a screen printing rotary press, a gravure rotary printing press, a sheetfed offset press, sheetfed flexographic press, sheetfed printing press or sheetfed offset press.

Accordingly, the printing device according to the invention can be used for machine printing in a printing press. In this case, the printing device can be used multiple times for printing. In one embodiment of the printing press can be provided that the printing device is arranged on a counter-pressure device, in particular on a counter-pressure cylinder and / or on a guide roller and / or a guide roller.

Furthermore, the invention relates to a printed product which has been processed by a printing device according to the invention. Here, the printed product on a substrate which is coated with a layer, wherein the layer has magnetically orientable particles. Furthermore, the printed product has at least one contour caused by magnetism, wherein the contour on the printed product is caused by aligned magnetically oriented particles of the layer.

In this case, the contour may have been aligned by at least one boundary line between a first region and a second region of the printing device. Accordingly, the printed matter has contours produced by magnetism, the contours having a three-dimensional appearance.

The layer may be a color layer or a lacquer layer. As substrates to be printed, papers, cardboard, plastic substrates and metal substrates or the like can be used, mainly substrates that can be processed by machine in the printing industry.

Furthermore, according to the invention, a method for producing a printed product can be provided. Here, the method comprises providing information describing an image of the printed product and storing the data in a production machine for a printing device. Furthermore, the method comprises providing at least one first area, for example a magnetic area, and a second area, for example a further magnetic area or a non-magnetic area. The geometry of the regions is provided, for example, based on data structure. Further, mounting of the printing apparatus is provided in a printing machine. Furthermore, the proposed method comprises supplying a substrate to the printing device and supplying paint with magnetically orientable particles. Further, applying the resist to the substrate and applying a pressure surface of the printing apparatus to the substrate are provided, wherein the pressure surface has at least one magnetic portion and at least one non-magnetic portion and a boundary between the magnetic portion and the non-magnetic portion the substrate acts.

Overall, a magnetic effect is used technically to produce three-dimensional optical effects on substrates in magnetic printing. The optical effects are caused by magnetically orientable particles on the printed product. Furthermore, individually adapted to an image or print motif, a printing device can be produced according to data. The printing device can be adapted in size to a printing press or to a roll of the printing press and easily mounted on this and then dismantled again, the printing device can be used several times after disassembly. Overall, the proposed solution is less expensive and uncomplicated in its application. Furthermore, the proposed printing device has a simple structure.

The printing device according to the invention can be created individually, in particular according to common data formats of the printing industry. The printing device has a thickness of less than one millimeter. Furthermore, decorative effects can be generated with the printing device, which can be provided according to individual specifications in the form of digital data.

Fig. 1

ein erstes Ausführungsbeispiel einer erfindungsgemäßen Druckvorrichtung in perspektivischer Ansicht;

Fig. 2

die Druckvorrichtung der Fig. 1 in einer Draufsicht;

Fig. 3

eine schematische Darstellung eines magnetischen Volumens;

Fig. 4

das magnetische Volumen der Fig. 2 mit beispielhaften magnetischen Feldlinien;

Fig. 5

ein zweites Ausführungsbeispiel einer erfindungsgemäßen Druckvorrichtung in Schnittansicht;

Fig. 6

ein drittes Ausführungsbeispiel einer erfindungsgemäßen Druckvorrichtung in Schnittansicht;

Fig. 7

ein viertes Ausführungsbeispiel einer erfindungsgemäßen Druckvorrichtung in Schnittansicht;

Fig. 8

ein fünftes Ausführungsbeispiel einer erfindungsgemäßen Druckvorrichtung in perspektivischer Ansicht;

Fig. 9

ein Druckerzeugnis, das mit der Druckvorrichtung der Fig. 8 bedruckt wurde;

Fig. 10

ein Ausführungsbeispiel einer Druckmaschine für die Herstellung eines erfindungsgemäßen Druckerzeugnisses unter Verwendung der erfindungsgemäßen Druckvorrichtung;

Fig. 11

eine Detailansicht der Druckmaschine der Fig. 10 in einem ersten Zustand; und

Fig. 12

eine Detailansicht der Druckmaschine der Fig. 10 in einem zweiten Zustand.

The invention, as well as other features, objects, advantages and applications thereof, will be explained in more detail below with reference to a description of preferred embodiments with reference to the accompanying drawings. In the drawings, the same reference numerals designate the same or corresponding elements. All described and / or illustrated features alone or in any meaningful combination form the subject matter of the present invention, regardless of their summary in the claims or their dependency. In the drawings show:

Fig. 1

a first embodiment of a printing device according to the invention in a perspective view;

Fig. 2

the printing device of Fig. 1 in a plan view;

Fig. 3

a schematic representation of a magnetic volume;

Fig. 4

the magnetic volume of Fig. 2 with exemplary magnetic field lines;

Fig. 5

A second embodiment of a printing device according to the invention in sectional view;

Fig. 6

a third embodiment of a printing device according to the invention in sectional view;

Fig. 7

A fourth embodiment of a printing device according to the invention in sectional view;

Fig. 8

a fifth embodiment of a printing device according to the invention in a perspective view;

Fig. 9

a printed product associated with the printing device of Fig. 8 was printed;

Fig. 10

an embodiment of a printing machine for the production of a printed product according to the invention using the printing device according to the invention;

Fig. 11

a detailed view of the printing press the Fig. 10 in a first state; and

Fig. 12

a detailed view of the printing press the Fig. 10 in a second state.

Fig. 1 shows a first embodiment of a printing device 10 according to the invention in a perspective three-dimensional view. In Fig. 1 To illustrate the three-dimensionality, a coordinate system is shown with the axes x, y and z, each of which characterizes a dimension of the printing device 10. The printing device 10 has a three-dimensional magnetic volume 20 with a first magnetic pole 21 and a second magnetic pole 22. The magnetic volume 20 is formed in this embodiment as a cuboidal volume and has flat surfaces on six outer sides of the volume 20. Further, the first magnetic pole 21 and the second magnetic pole 22 abut each other flatly and form a plane two-dimensional boundary surface, wherein a boundary line 23 of the interface in FIG Fig. 1 is shown, which lies partially inside the printing device 10. In the present embodiment, the first magnetic pole 21, the magnetic north pole of the magnetic volume 20 and the second magnetic pole 22, the magnetic south pole of the magnetic volume 20. However, in other embodiments, the poles can be reversed, so that the first magnetic pole 21 of the magnetic South pole and the second magnetic pole 22 is the North Pole. In both cases, one of the magnetic poles forms a pressure surface 11, while the other magnetic pole faces away from the pressure surface 11.

The pressure surface 11 has a magnetic region 24 which is formed by one of the magnetic poles or by a magnetic pole. The printing surface 11 is used for magnetic printing and is in intended use facing a substrate to be printed. The magnetic region 24 is formed by the first magnetic pole 21 of the magnetic volume 20. It is also possible that the magnetic pole is covered by an additional layer and thus the pressure surface 11 acts only indirectly on a substrate, since it then does not come into contact with the substrate surface. This magnetic portion 24 is fully effective in such a case, even if the magnetic pole 21 is below an outer surface of the printing device 10, for example, when a layer between the pressure surface 11 and the surface of the printing device 10 is formed. In the embodiments of the Fig. 5 to 8 This is the case, ie, the magnetic volume 20 is at least partially or completely within the printing device 10. In the embodiment of the Fig. 1 the magnetic volume with its pressure surface 11 forms an outer surface of the printing device 10.

Thus, the magnetic region 24 formed by a magnetic pole 21 of the magnetic volume 20 can act directly on the pressure surface 11. In such a case, the magnetic pole 21 forms the pressure surface 11.

Fig. 1 also shows two non-magnetic regions 25 each adjacent to the magnetic region 24. Each of the magnetic regions 25 forms an edge region of the printing device 10 in the present case.

Fig. 2 shows the printing device 10 of Fig. 1 in a plan view, ie in the coordinates z and y Fig. 1 in which the non-magnetic regions 25 partially surround the magnetic region 24, in particular the magnetic volume adjoins two non-magnetic volumes. Here, the pressure surface 11 is shown in a plan view, wherein the in Fig. 2 visible magnetic region 24 and the two non-magnetic regions 25 are identical to the pressure surface 11.

At the transition between the magnetic region 24 and the non-magnetic region 25, an interface 27 is formed in the interior of the printing device 10. At the interface 27, boundary lines 28 form, which delimit the boundary surface 27, wherein one of the boundary lines 28 faces the pressure surface 11 and runs parallel to the pressure surface 11. This in Fig. 2 Exemplary illustrated boundary lines 28 are used to magnetically print a substrate. In an embodiment of the printing device 10 according to the invention, as in FIG Fig. 1 shown, the substrate comes into contact with the printing surface 11 of the printing apparatus 10 in magnetic printing. Indirect contact is also possible by having between the printing surface 11 and the magnetic volume, a further layer, for example a protective layer, which in the embodiments of the Fig. 5 to Fig. 7 is shown.

The printing device 10 according to the invention can be used manually or in a printing press. In both cases, a coating with magnetically orientable particles is applied flat on the substrate or applied at least partially flat. In the present embodiment of Fig. 1 and 2 result in two lines as a print result or image on the substrate to be printed according to the contour of the two boundary lines 28 of the printing device 10. It is thus a contour on the substrate printed magnetically, which remains permanently on the substrate. The use of magnetically orientable particles in the applied paint results in optically three-dimensional effects on the substrate. In the present embodiment of Fig. 2 a monochromatic image with a three-dimensional contour with two mutually parallel line corresponding to the course of the two boundary lines 28 is generated. The optical Three-dimensional effect is caused by the action of the boundary line 28. The applied magnetically orientable particles align according to the course of the boundary line 28, so that at these locations the particles have a different orientation than on the magnetic surface 24 and on the non-magnetic surface 25. This means that the surface 24 and the Surface 25 cause the same visual appearance on the image and only the boundary line 28 causes a three-dimensional contour, wherein the printed product on the substrate surface shows no roughness and surface uniformly smooth.

In an alternative embodiment with respect to FIG. 3 and FIG. 4 For example, the magnetic pole 21 may be formed below the pressure surface 11 in the interior of the printing apparatus 10. The location of the magnetic volume 20 may depend on additional optional coatings of the printing device 10. For example, a coating may be arranged on the magnetic region 24 in order to mechanically protect the printing device 10.

To clarify the technical effect used when printing a printed product with the printing device 10 according to the invention is in FIG. 3 and FIG. 4 the magnetic volume 20 of the embodiment of the printing device according to Fig. 1 shown. At the surface of the magnetic volume 20, edge effects of the magnetic region 24 are used to print out contours on a printed product. For this purpose, material is applied to the printed product, for example paint with magnetically orientable particles, which aligns particularly at the edge regions of the magnetic region 24.

As in Fig. 4 is shown schematically, the particularly strong edge effects of the course of magnetic field line 26 are used to align magnetic particles or pigments on an existing in close proximity printed product. This alignment of the magnetic particles or pigments causes a visual three-dimensional effect on the printed matter without the printed matter becoming uneven or rough on its printed surface by the printing process.

Fig. 5 shows a second embodiment of a printing device 10 according to the invention in cross section in which a magnetic volume 20 forms a portion of a printing surface 11. The pressure surface 11 has a magnetic region 24, which is formed by a first pole 21 of the magnetic volume 20. Furthermore, the magnetic region 24 has a second magnetic pole 22 adjacent to the first magnetic pole. The printing surface 11 of the printing device 10 has a non-magnetic region 25, which is formed for example by a polymer. In this case, the magnetic region 24 and the non-magnetic region 25 adjoin one another and each form a boundary line 28. The boundary line 28 is below the pressure surface 11 and acts through a protective layer 13 on the pressure surface 11. The protective layer 13, for example, for the mechanical protection of Pressure surface 11 serve. Furthermore, the printing device 10 has a carrier layer 12. The carrier layer 12 may for example serve as a base and be used to fix a plurality of regions 24, 25 in their position relative to one another. The boundary line 28 is used in the intended use of the printing device 10 to cause an optical effect on a printed product, in particular to align magnetically orientable particles in a paint or in a color magnetically. The carrier layer 12 as well as the protective layer 13 are each optionally present.

In the embodiment of the Fig. 5 two boundary lines 28 are formed, caused by a first transition from the magnetic region 24 to the non-magnetic region 25 and by a second transition from the non-magnetic region 25 to a second magnetic region 24.

Fig. 6 shows a third embodiment of a printing device 10 according to the invention, wherein the printing device 10 has two non-magnetic portions 25 which are separated by a magnetic portion 24 from each other. The magnetic poles of the two magnetic regions 24 are similarly aligned. This means that in the present embodiment, for example, the magnetic north poles of the printing surface 11 are facing and the magnetic south poles of the printing surface 11 are facing away. Here, the printing device of the Fig. 6 an optional carrier layer 12 and an optional protective layer 13, as well as in FIG Fig. 5 shown.

In the embodiment of the Fig. 6 will also be like in Fig. 5 two borderlines 28 formed. at Fig. 6 For example, a first boundary line 28 is formed by a transition from the first non-magnetic region 25 to the magnetic region 24. Further, in Fig. 6 a second boundary line 28 through a transition from the magnetic region 24 to the second non-magnetic region 25 is formed. Here, the printing device 10 of the Fig. 6 an optional carrier layer 12 and an optional protective layer 13.

Basically, with the embodiments of the Fig. 5 and Fig. 6 in each case the same image or print image are generated, since it depends on the course of the boundary lines 28 for the image. For example, the trained boundary lines 28 in the sectional view of Fig. 5 and Fig. 6 each straight line, as in Fig. 1 shown, so can with the printing devices 10 of the Fig. 5 and Fig. 6 each two straight lines are printed as a contour magnetic. This is possible if the two embodiments of the Fig. 5 and Fig. 6 have geometrically equal boundary lines 28, but which were caused in different ways by the arrangement of the magnetic and non-magnetic regions 24, 25.

Fig. 7 shows a further embodiment of a printing device 10 according to the invention in a sectional view. Here, both a first region is a magnetic region 24 and a second region is a magnetic region 24. Further, the printing device 10 has a third magnetic region 24. The magnetic regions 24 each have magnetic poles 21, 22, with one of the poles of each region 24 facing the printing surface 11 and one of the poles of each region 24 facing away from the printing surface 11. Furthermore, two of the magnetic regions 24 adjoin each other and each form a boundary line 28. Two adjacent magnetic regions 24 differ in their orientation of the magnetic poles 21, 22. Thus, alternating magnetic north pole and magnetic south pole of the pressure surface 11 facing. A lower layer 12 and an upper layer 13 are optional as in the other embodiments because the effect of the printing device 10 is not affected by these layers 12, 13.

Furthermore, it is possible that in the context of the present invention the embodiments shown and described can be combined. For example, it is possible that the printing device 10 according to FIG Fig. 7 also has non-magnetic regions 25. These may, for example, lie between the magnetic regions 24. In this way, alternately magnetic regions 24 and non-magnetic regions 25 adjoin one another, wherein in addition the orientation of the magnetic poles 21, 22 with respect to the pressure surface 11 change alternately.

In the context of the present invention, it is also possible according to a further embodiment, that the side surfaces 27 of the magnetic poles 21, 22 are not aligned at right angles or nearly at right angles with respect to the pressure surface 11, wherein, for example, in FIG Fig. 1 the right-angled or nearly right-angled case is shown. Instead, the side surfaces 27 may be disposed inclined with respect to the pressure surface 11. In this way, magnetic volume 20 can be similar as in Fig. 3 result, however, in side view and sectional view, respectively Fig. 4 form a trapezoidal shape, a diamond shape, a triangular shape or similar geometries with oblique side boundaries. There are therefore inclined side surfaces 27 possible, which can form any angle to each other. These shapes have an effect on the magnetic printing, because their geometry, the magnetic effect on the printing surface 11 is changeable.

Although magnetic effects may also occur in the non-magnetic region 25 due to the magnetic effect of the magnetic volume 20, these are attributed to the magnetic volume or the magnetic region near the printing surface 11 of the printing device 10. The non-magnetic region 25 comprises a non-magnetic material, so that at least one side surface 27 is formed between the magnetic volume and the non-magnetic volume. The side surface 27 is in the embodiment of Fig. 1 arranged perpendicular or at right angles or nearly at right angles to the pressure surface 11. At the geometric locations where the interface 27 confines the two-dimensional magnetic domain 24, a boundary line 28 is formed which is technically utilized for "magnetic printing" of the present invention.

Fig. 8 shows a fifth embodiment of a printing device 10 according to the invention in a perspective view. With this embodiment, the letter "T" is to be magnetically printed. For this purpose, the printing device 10 has a magnetic volume 20 which corresponds to the shape of the letter "T". At this shape of the letter is a non-magnetic volume adjacent to lateral interfaces 27. Thus, instead of the cuboidal shape of the Fig. 1 used another embodiment of the magnetic volume.

Fig. 9 shows a printed product 30, which with the printing device of Fig. 8 was printed. As well as in Fig. 9 the top view of the printing device 10 is shown Fig. 8 out. For this purpose, the reference numerals 30, 31 and 32 of Fig. 9 by the reference numbers 10, 11 and 28 to replace.

To provide a printed product 30 after Fig. 9 For example, a substrate 31 has been fed to the printing device 10 so that the substrate 31 is placed on the printing device 10 at least briefly, directly or through an intermediate layer. The substrate 31 may be, for example, paper, cardboard, plastic or metal foil. By applying a color layer or lacquer layer with magnetically orientable particles during the action of the printing device 10 on the substrate 31, a contour 32 of the letter "T" is magnetically printed at the interface between the magnetic region 24 and the non-magnetic region 25 of the printing device 10 , Here, the magnetically orientable particles at the boundary lines 28 cause a three-dimensional optical effect, so that the contour 32 of the letter "T" is perceived three-dimensionally by a viewer. The printed surface of the substrate 31 is smooth in this case, without the magnetically oriented particles can be perceived haptically. Also, the size of the individual magnetically orientable particles is so small that individual particles are optically imperceptible. Rather, a collection of magnetically oriented particles as a three-dimensional optical effect is perceptible.

It is within the scope of the present invention that any number of letters, numbers, characters, and geometric shapes are printed magnetically with a single printing device 10 such that the printing device 10 has corresponding boundary lines 28 that reflect that image design.

Fig. 10 shows an embodiment of a section of a printing press 40, in particular a sheet-fed offset printing machine, which applies a printing layer as a color 33 or paint 33 with magnetically orientable particles on a substrate 31 in a working section. The illustrated section of the printing machine 40 may also be referred to as a printing unit or as a printing unit, which is designed in the present embodiment in the form of a flexographic printing unit, also referred to as a flexographic printing unit.

In the embodiment of Fig. 10 For example, the printing machine 40 or the flexographic printing unit has an anilox roller 41, a paint-forming cylinder 42 and an impression cylinder 43. Furthermore, the printing machine 40 has a color supply device 44, which provides color 33 with magnetically orientable particles or paint 33 with magnetically orientable particles. The paint 33 or the paint 33 is applied to the substrate 31, that is to say on the printing medium 31, in order to provide a printed product after application of the paint 33 of the paint 33.

The directions of the rollers and cylinders are correspondingly in Fig. 10 marked with arrows. Further, a horizontal arrow indicates the conveying direction of the substrate 31, which is performed by the printing machine 40 through a plurality of printing stations.

Here, the printing station shown leads the printing machine 40 in Fig. 10 For example, a finishing of the substrate 31 by, as the last layer, the color 33 is applied with magnetically orientable particles or the paint 33 with magnetically orientable particles. This may be, for example, a flexographic printing unit of a sheetfed offset press, with which printing of the substrate 31 is performed.

During a printing operation, the ink supply device 44 or a chamber doctor blade provides the ink 33 with magnetically orientable particles or the paint 33 with magnetically orientable particles. This paint 33 or the paint 33 passes through the anilox roller 41 to the paint-forming cylinder 42, which supplies the paint or the paint 33 as a layer 34 to the substrate 31. The substrate 31 may be, for example, paper, cardboard or foil.

Fig. 10 shows a section of a printing process. In previous printing stations of the printing press 40, for example, the substrate 31 was already printed with paint or varnish, and in a final step of the printing process, the color 33 with magnetically orientable particles or the varnish 33 with magnetically orientable particles is applied as the last layer. For example the previous steps within the printing machine 40, the substrate 31 printed with a uniform arbitrary hue, so that subsequently a contour 32 and an image 32 can be magnetically printed on this background.

For a magnetic printing in the present embodiment of the Fig. 10 a printing device 10 according to the invention attached to the impression cylinder 43, so that the printing device 10 is moved at the rotational speed of the impression cylinder 43. In this case, the printing device 10 has a curvature with a radius of curvature, the curvature radius of the printing device 10 corresponding to the radius of the impression cylinder 43. Furthermore, it is also possible to use a plurality of printing devices 10 within the printing press 40, for example by attaching a plurality of printing devices 10 according to the invention. It is also possible that the printing device 10 according to the invention covers the entire circumference of the impression cylinder 43, so that during a rotation of the Counterpressure cylinder 43 a plurality of supplied substrates 31 can be magnetically printed.

In 11 and FIG. 12 is schematically each a temporal state of the printing machine 40 from Fig. 10 for magnetic printing of the substrate 31 shown. Fig. 10 shows a temporal state of the printing machine 40, in which the substrate 31 has already been supplied to the paint-forming cylinder 42 and the impression cylinder 43. The substrate 31 is located between the lacquer printing cylinder 42 and the impression cylinder 43 and comes in this position with the supplied paint 33 and the supplied paint 33 on the paint form cylinder 42 in contact. The printing device 10 acts on the substrate 31 during the passage of the substrate 31 between the two cylinders 42, 43. The substrate 31 has a printing side, which faces the lacquer printing cylinder 42. On the back side of the printing side, the substrate 31 has an action side which faces the impression cylinder 43. The substrate 31, the paint 33 and the paint 33 is supplied on the printing side. On the Einwirkseite of the substrate 31, an embodiment of the printing device 10 of the invention acts on the substrate 31. This means that the printing device 10 does not come into contact with the paint 33 and the paint 33, but only magnetically to the paint 33 and the paint 33 acts with magnetically orientable particles on the pressure side of the substrate 31. Consequently, the printing device 10 acts through the substrate and acts on the printing side of the substrate, where the ink 33 and the paint 33 are influenced by the printing device 10 to align magnetically orientable particles of the paint 33 and the paint 33, respectively the one orientation at the boundary lines of the printing device 10 or approximately in the area of Boundary lines 28 takes place. The course of the boundary line 28 does not need to lie on the printing surface 11 of the printing device 10, since a boundary line 28 also develops a magnetic effect below the printing surface 11. Overall, when the printing surface 11 of the printing device 10 acts on the substrate 31, the desired image is produced with a contour on the substrate 31. For this purpose, the contour is advantageously predetermined by data specifications in the production of the printing device 10 in order to be able to produce a printing device mechanically or at least partially by machine. Thus, a printing device 10 can be used multiple times for one and the same contour.

11 and FIG. 12 schematically show a respective temporal state of the printing press 40 with a substrate to be printed ( Fig. 11 ) or with a printed substrate 31 (FIG. Fig. 12 ) as a printed product 30 after a printing operation. The printed product 30 has a printing contour or an image after the printing process, which was caused by oriented particles 35 of the applied paint 33 or of the paint 33. These aligned particles 35 produce an optical three-dimensional effect that can be visually perceived by a viewer.

Alternatively to the in the 10 to 12 schematically illustrated part of a printing press 40 with a flexographic printing unit, other types of printing machines can be used to use the inventive technique. For example, in the gravure printing method, the printing device according to the invention can be fastened on a impression roller. Further, in rotary printing process, the printing device according to the invention may be mounted on a guide roller.

The invention has been explained in detail above with reference to preferred embodiments thereof. However, it will be apparent to those skilled in the art that various modifications and changes can be made without departing from the spirit of the invention.

LIST OF REFERENCE NUMBERS

10

printing device

11

printing surface

12

backing

13

protective layer

20

magnetic volume

21

first magnetic pole

22

second magnetic pole

23

Borderline between magnetic poles

24

magnetic area

25

non-magnetic area

26

magnetic field line

27

Interface between a first area and a second area

28

Borderline between a first area and a second area

29

non-magnetic volume

30

Printed Media

31

Print medium or substrate

32

Contour or print contour with three-dimensional effect

33

Color with magnetically orientable particles

34

Layer, such as a paint film or a paint film

35

magnetic oriented particles or magnetically oriented particles

40

Printing machine, in particular as an exemplary embodiment with a flexographic printing unit

41

anilox roller

42

Coating form cylinder

43

Impression cylinder

44

Ink feed arrangement

Claims (15)

Having printing device (10)
a pressure surface (11) having a first region and a second region, wherein the first region and the second region at least partially adjoin one another and form at least one boundary line (28),
wherein the first region is a first magnetic region (24) and is part of a first magnetic volume (20), the magnetic volume (20) having a first magnetic pole (21) and a second magnetic pole (22) magnetic pole (21) facing the pressure surface (11) and the second magnetic pole (22) facing away from the pressure surface (11), and wherein the boundary line (28) a contour (32) on a substrate to be printed hervorufbar (31) is
wherein the printing device (10) has a thickness of less than one millimeter, wherein the printing device (10) is flexible and wherein the printing surface (11) is compressible. The printing device (10) of claim 1, wherein the second region is a non-magnetic region (25). A printing device (10) according to claim 1 or claim 2, wherein the printing device (10) has an image with complex structures. A printing apparatus (10) according to any one of claims 1 to 3, wherein said printing device (10) has a plurality of magnetic regions (24), at least two magnetic regions (24) being similarly aligned with respect to their magnetic poles (21, 22). Printing device (10) according to at least one of claims 1 to 4, wherein at least one of the regions is formed by a polymer. Printing device (10) according to at least one of claims 1 to 5, wherein the pressure surface (11) has a curvature in the intended use. Printing device (10) according to at least one of claims 1 to 6, wherein the printing device (10) has a coating (16). A method of producing a printing device (10), in particular for producing a printing device (10) according to at least one of claims 1 to 7, comprising providing a printing surface (11) having a first region and a second region, and
Arranging the first region and the second region such that the first region and the second region (25) adjoin one another and form a boundary line (28),
wherein the first region is part of a magnetic volume (20) and the magnetic volume (20) has a first magnetic pole (21) and a second magnetic pole (22), the first magnetic pole (21) facing the printing surface (11) and the second magnetic pole (22) faces away from the printing surface (11), wherein a contour (32) can be produced on the border (28) on a substrate (31) to be printed, wherein the printing device (10) has a thickness of less as a millimeter and is flexible and wherein the pressure surface (11) is compressible. The method of claim 8, wherein at least one magnetic region (24) is provided by casting a magnetic material, cutting out a magnetic material, punching, printing, in particular three-dimensional printing, and / or by using a magnetic paste. The method of claim 8 or claim 9, wherein a first shape of the first region and a second shape of the second region are provided by specifying a data structure. Method according to at least one of claims 8 to 10, comprising providing a raw magnetic film on which an image is transferred to the raw magnetic film in a processing operation, wherein edges are formed during the processing operation of the raw magnetic film, at which magnetic field lines are formed,
Potting the raw magnetic film with a non-magnetic polymer and
Producing a uniform thickness of the printing device (10). The method of claim 11, further comprising creating a data structure that specifies the image for the printing device (10). The method of claim 11 or claim 12, further comprising transferring the image to the raw magnetic film with a data processing equipment. Use of a printing device (10) according to any one of claims 1 to 7 for magnetic printing using a layer (34) of magnetically orientable particles which is applicable to a substrate surface of a substrate (31) and wherein the printing device (10) acts on the substrate surface in that the printing device (10) acts through the substrate (31) to be printed. Use of the printing device (10) according to claim 14, wherein the printing device (10) is mounted on a roller (43) of a printing machine (40) and the substrate (31) contacts the printing device (10) flatly with its substrate rear side during a printing operation, and wherein on the substrate surface as the front side of the substrate (31) magnetically orientable particles (35) are aligned.

Images