RU2803577C1 - Machine for obtaining optically variable image elements - Google Patents

Abstract

FIELD: optical machines.

SUBSTANCE: invention is related to a machine (01) for obtaining optically variable image elements (03) on a substrate (02). The machine contains a printing material supply unit (13), at least one printing section (04) with at least one printing unit (11; 12), by means of which at least the first side of the substrate (02) passing through the machine (01) along the transport path is sealed and / or can be sealed with a coating means (06) containing magnetic or magnetizable particles , a finished product receiving unit (27) designed for basing the substrate (02) processed in the machine (01), as well as a device (07) for orienting magnetic or magnetizable particles contained in the coating agent applied to the side of the web-like or sheet-like substrate (02) (06) provided on the transport path of the substrate (02) between the printing section (04) and the finished product receiving unit (27), moreover, the printing unit (11; 12) as a visualizing cylinder includes a plate cylinder (14; 16) with a plurality of visualizing printed plots or groups of visualizing printed plots on a circle, which are ordered according to the circumference corresponding to the length of the printed image, in several columns located transversely to the direction of transport (T), equidistant from each other, and according to the width of the cylinder corresponding to the width of the printed image, in several lines, equidistant from each other in the direction of transport (T), and the device for orienting magnetic or magnetizable particles (P) includes the first orienting device (33; 33'), which is located on the transport path of the substrate (02) to be transported and, in the area of its side facing the transport path, has a plurality of magnets (44) designed to, in order to receive visual information, orient at least part of the particles (P) contained in the coating means (06) in a certain way in the surface area supplied with the coating means (06), the magnets (44) of the first orienting device (33; 33') serving to orient and the substrate supplied with the coating means (P) containing the particles (P) (06) (02) on at least one section of the transport path move synchronously with each other, while the device for orienting magnetic or magnetizable particles (P) includes at least one first additional orienting device (42) located on the transport path of the substrate to be transported (02), fixed in the process of operation on the transport path in front of the first orienting device (33; 33') and having transversely to the direction of transport (T) a plurality of magnets (46) located transversely to the direction of transport (T), which during operation of the device remain in it in a stationary state, and the first additional orienting device (42) includes magnets (46) located on the circumference of the plate cylinder (14; 16), the number of which corresponds to the number of columns of visualizing printed images or groups of visualizing printed images and which are located on the transport path in such a way that the printed images or groups of visualizing printed images are respectively located along the transport path at least partially on the same straight line with the lateral position of the magnets (46) of the first and the additional orienting device (42).

EFFECT: improvement of quality of formation of optically variable image elements on the substrate.

15 cl, 13 dwg

Description

The invention relates to a machine for obtaining optically variable image elements according to claim 1.

From the European patent EP 2845732 B1 there is known a printing machine with a screen printing section and a device for orienting magnetic or magnetizable particles contained in printing ink or varnish, which has a cylinder with many elements generating a magnetic field around the circumference, as well as a dryer directed to that place of transport path of the substrate in which it has not yet left the cylinder.

US Pat. No. 7,047,883 B2 describes a magnetically active device in a first embodiment, which can be provided in a serial arrangement relative to the printing device and includes several permanent magnets located next to each other along the transport path of the printed material. The magnetic or magnetizable particles contained in the printing ink can be oriented by permanent magnets while the printing material is passed past the magnets. In another embodiment, such magnets are provided on the side surface of the cylinder through which passes a web printed with printing inks containing magnetic or magnetizable particles.

European patent EP 3178569 A1 describes a device for forming layers with an optical effect, whereby two cylinders with magnets on their side surfaces are arranged in series along the path of transport of the printed material, through which passes a web printed with magnetic or magnetizable particles with printing ink. By means of the dryer and the mask partially covering the sealed areas, the first partial area can be oriented and dried first before the other partial area can be oriented by the magnets of the second cylinder and drying is performed.

International application WO 2015/086257 A1 relates to a method for producing optically variable effect layers, wherein in one step of the method at least a portion of the lamellar magnetic or magnetizable pigment particles is biaxially oriented.

German patent DE 102018127936 A1 relates to a printing machine with a first magnetic cylinder and a downstream second magnetic cylinder, which in their lateral surface area respectively comprise first and second magnetic elements. By means of these first magnetic elements, the first pixels can be oriented, and by means of the second magnetic elements, the second pixels can be oriented, at least overlapping the first pixels.

German patent DE 102018205883 A1 describes a machine for orienting magnetic particles in previously applied printing ink, wherein in one embodiment two magnetic cylinders are arranged in series on the transport path of the substrate, and in another embodiment even three magnetic cylinders are arranged in series. By using, for example, two magnetic cylinders directed towards the same side of the substrate, for example, it is possible to orient two different print areas by means of both magnetic cylinders with different pattern patterns. In this case, after the first area has been oriented, this area is dried before another area is oriented by means of a second magnetic cylinder.

In accordance with the German patent DE 102010041398 A1, the magnetic particles contained in the printing ink are proposed to be oriented by means of an active element, the ferromagnetic properties of which were imparted in the first embodiment of the invention, respectively, by means of an external magnetic field in the "offline" mode, and in the second embodiment in the "offline" mode. online." In the case of active elements that are exposed to a magnetic field outside the machine, for the operation of such an active element it is fixed to a form, plate, rubber or impression cylinder. In the case of a built-in effect, the displaying magnetic image is magnetized entirely by electromagnets directed toward the substrate transport path passing through the cylinder. In this case, several electromagnets are provided in the circumferential direction, through which, as the material to be printed passes through, the corresponding magnetizing effect is sequentially repeated. In this case, the magnetizing effect of electromagnets can be supported by a magnetizable thin plate or film, which is achieved by displaying dynamic magnetization and enhancing the dynamic effect.

German patent DE 102018122160 A1 relates to a sheet-fed printing machine, and this document describes many different configurations of this machine. We are talking in particular about a design with a screen printing section and at least one subsequent magnetic orienting device equipped with at least one magnet for orienting the magnetic particles contained in the printing ink. The orientation of the particles should preferably be carried out after application of the printing ink. Alternatively or additionally, the orientation can be carried out during and/or before the application of the printing ink. The at least one orientation device should preferably be integrated into the at least one orientation cylinder and/or placed in an oriented position on the at least one orientation cylinder.

In the international application WO 2019/141453 A1, a method for obtaining optical effects is published, and in one embodiment of this invention, a substrate with magnetic particles contained in the printing ink is passed through a magnetic cylinder with magnetically active magnetic elements in order to orient the latter. At the same time, they are also exposed to the magnetic field generated by the magnetic device, which is statically distributed around the circumference of the magnetic cylinder.

The present invention was based on the task of creating a machine for producing optically variable image elements.

This problem according to the invention is solved thanks to the distinctive features presented in claim 1 of the claims.

The advantages achieved by the present invention are primarily due to the fact that it makes it possible to obtain substrates with optically variable pixels with a high-quality three-dimensional optical effect, characterized by improved contrast, increased brightness and/or optimized 3D effect, that is, with a spatial optical effect.

After applying printing ink with magnetic or magnetizable particles, the latter are in a more or less chaotic state in the ink matrix. By subsequently orienting one or more partial regions to

obtaining visual information, for example, an alphanumeric symbol, a figurative motif or a design within a previously printed surface, hereinafter briefly also called visualizing or image-creating orientation, some of the particles are purposefully oriented in such a way that when observing the printed image, the desired optical effect can be realized . This is done by means of an orienting device that inputs the corresponding visual information, which below is also briefly called a visualizing or image-creating orienting device.

Particularly advantageous is an embodiment of the invention in which the particles are applied to the printed material by means of printing ink, for example on at least one surface area important for the image or subject to be displayed, before interacting with the orienting device provided for the imaging orientation, respectively creating the orientation image, respectively before it and/or at least at the time of interaction or during the time interval of interaction with the orienting device provided for visualizing orientation, interacts with another orienting device intended for preliminary orientation, respectively simultaneous orientation.

Another orienting device intended for preliminary orientation ensures that at least those surface areas in the finished product that are directly adjacent to the plot or design have a more uniform appearance, and this is achieved due to the fact that the particles present in these areas are not oriented chaotic and therefore provide a background with less contrast compared to the pictorial motif, respectively, the pattern. Thanks to a targeted and, for example, uniform orientation of the particles located at least in the vicinity of the visualizing surface areas, a higher contrast between the pictorial motif or design and the background can be achieved. In the case of visual orientation and at least occasional simultaneous orientation with appropriate formation of the magnetic field, a spatial effect can even be achieved by superposition.

In a preferred embodiment of the invention, the visualizing or visualizing orienting device is designed and configured in such a way that the magnets of the orienting device used for visual orientation and the material to be printed with the particle-containing printing ink move synchronously with each other in at least one section of the transport path, while one or the other additional orienting device is stationary located in the operating state on the transport path, that is, the magnets of one and/or the other orienting device for preliminary orientation, respectively simultaneous orientation, are stationary located in the operating state, respectively, during operation they remain motionless, that is, unlike the visualizing or image-creating orienting devices, they do not move synchronously with the material being printed. In this case, the visualizing orienting device is preferably designed in the form of a rotating cylinder, for example a magnetic cylinder, which on its circumference has magnetic elements used for visualizing orientation and supports and/or transports the printed material in at least one segment of the rotation angle.

A particularly preferred device for orienting magnetic or magnetizable particles contained in a coating means applied to one side of a web-like or sheet-like substrate includes a first orienting device, which is located in the transport path of the substrate to be moved and has a plurality of magnets in the region of the side facing the transport path, designed to a specific orientation of at least part of the particles contained in the coating means in a corresponding surface area including the coating means, wherein the magnets of the first orienting device serving for orientation and the substrate equipped with the coating means containing particles move synchronously with each other in at least one section of the transport path . On the transport path before or opposite the first orienting device located on the transport path of the substrate to be transported, there is at least one additional orienting device with a plurality of magnets, which remain in a stationary position during operation of the device.

In a particularly preferred embodiment of the invention, an additional pre-orientation device with a plurality of magnets is provided in the transport path of the substrate to be transported in front of the first orienting device, so that the latter can be used to pre-orient the particles at least in surface areas adjacent to the corresponding visual information by partial areas, or surface areas containing the visual information to be obtained, and/or an additional orienting device for simultaneous orientation by one or more magnets, which is located on the side of the transport path opposite from the first orienting device in such a way that the same and/ or adjacent surface portions of a surface region including visual information to be acquired at at least one location along the transport path simultaneously interact with the first and additional orienting devices.

The orienting device used for pre-orientation preferably contains magnets arranged in such a way that, by means of the latter, at least in the surface areas adjacent to the partial areas corresponding to the visual information, or the surface areas containing the visual information to be obtained - in particular, over the entire thickness of the coating , that is, the thickness of the applied coating agent, or at least in the visible surface layer, could ensure a uniform preliminary orientation of the particles or a predominant number of particles (by orientation is meant at least the course of the longitudinal axis of the particles projected onto the plane of the substrate). The magnets of the additional orienting device located in front of the first orienting device are preferably configured and oriented in such a way that in the surface area containing the visual information to be obtained, the particles or a predominant number of particles, in particular throughout the entire thickness of the coating or at least in the visible surface layer, are uniform biaxially oriented, in particular with respect to an axis extending in both the longitudinal and transverse directions, parallel to each other or otherwise, due to which a uniform optical effect is produced in this surface area.

In this case, by said uniform pre-orientation or alignment, it can be understood as an ideal case in which all particles are uniformly pre-oriented or aligned in the above-mentioned manner - in particular throughout the entire thickness of the coating or at least in the visible surface layer - observed surface area, as well as, if necessary, cases of a less ideal, but despite this preferred option, according to which almost all, that is, at least 90% of previously randomly oriented particles, are uniformly pre-oriented, respectively aligned, respectively at least at least their predominant number, that is, more than 50%. The surface region observed in these cases with a portion of randomly oriented particles, but with a predominant portion of uniformly oriented particles, also provides a higher contrast of visual information to be introduced into this surface compared to completely randomly oriented particles.

In a machine that includes such a device, on the transport path of the printed material between the supply unit of the printed material and the receiving unit of the finished product, there is a printing apparatus with a visualizing cylinder, preferably made in the form of a plate cylinder and equipped with a plurality of visualizing printed subjects or groups of visualizing printed subjects on a circle, which are located on the circumference corresponding to the length of the printed image, in several columns equidistant from each other, transverse to the direction of transportation, and on the width of the cylinder, corresponding to the width of the printed image, in several lines equidistant from each other in the direction of transportation, and wherein the above-mentioned additional orienting device includes a corresponding number of columns, the number of magnets that are located on the transport path in such a way that the printed plots or groups of visualizing printed plots are at least partially located along the transport path in line with the lateral position of the magnets of the additional orienting device.

When orienting magnetic or magnetizable particles that are contained in a coating means applied to one side of a web-like or sheet-like substrate, at least a part of the particles contained in the coating means is oriented in a certain way in order to obtain visual information in the surface region including the coating means, by means of a first orienting device including magnets. while the magnets of the first orienting device used for orientation and the substrate provided with the particle-containing coating means move synchronously with each other in at least one section of the transport path. In addition, the magnetic particles in at least one surface area containing the visual information to be obtained, before reaching the first orienting device, are uniformly oriented by means of another orienting device parallel to each other or otherwise at least with respect to the course of the longitudinal axis of the non-spherical particles in projection onto the plane substrate, and/or to orient said particles by magnetic fields during interaction with the first orienting device, they are simultaneously exposed to an additional orienting device located on the transport path opposite the first orienting device.

Other details and embodiments of the invention are illustrated in the examples below.

Examples of the invention are presented in the following drawings:

in fig. 1 example of the design of a machine for obtaining optically variable image elements on a substrate,

in fig. 2 is a schematic representation of a substrate printed into printed elements with an optically variable coating means, the left part (Fig. 2a) showing the orientation of the visualizing device only, that is, providing visual information, and the right part (Fig. 2 b) the orientation when used by at least one additional orientation providing pre-orientation and/or simultaneous orientation,

in fig. 3 is an enlarged view of the one shown in FIG. 1 printing unit,

in fig. 4 is an enlarged view of the one shown in FIG. 1 device for orienting magnetic or magnetizable particles in the first design option,

in fig. 5 is an enlarged image of a device for orienting magnetic or magnetizable particles in the second design option with two magnetic cylinders,

in fig. 6 view at an angle of the magnetic cylinder in one design option,

in fig. 7 shows in detail the orientation of magnetic or magnetizable particles, carried out, for example, in accordance with that shown in FIG. 4 options,

in fig. 8 is an angled view of an orienting device provided in the machine for preliminary orientation of magnetic particles, for example, equipped with magnets and spacers, as well as grippers for dismantling such magnets or spacers,

in fig. 9 is a localized view of the fully magnetized orienting device shown in FIG. 8,

in fig. 10 is an enlarged view of FIG. 9 perspective orienting device,

in fig. 11 is a detailed image of the design of the detachable magnet mount on the supporting structure of the orienting device,

in fig. 12 is an angled view of the orienting device provided in the machine for simultaneous orientation of particles in the working position (solid lines), as well as in the adjustment position or in the passive position (dash-dotted lines),

in fig. 13 detailed view of the magnet in the folded position.

A machine 01, for example a printing machine 01, in particular a security printing machine 01, for producing optically variable image elements 03 on a substrate 02, for example a web-like or sheet-like printed material 02, includes an application device 04, for example a printing unit 04, by means of which an optically variable coating agent 06, for example an optically variable printing ink 06 or a varnish 06, can be applied at at least one application location, for example a printing location, on at least a first side of the substrate 02, for example a printing material 02 , over the entire surface or in partial areas in the form of printed image elements 08, as well as a device 07 for orienting particles P contained in the optically variable coating agent 06 applied to the substrate 02 and responsible for the optical versatility (see, for example, Fig. 1) . This device 07 is also briefly referred to below as an orienting device 07 or, since, thanks to the specific orientation of the particles P, this device ensures the visualization of an optically variable pattern, or plot, it is also called a visualizing orienting device 07. The application of a coating agent 06 containing P particles and the subsequent visualizing orientation is shown schematically , for example, on the left side of Fig. 2 (in Fig. 2a) by depicting the number I through the orientation of previously randomly oriented particles P. In this case, the Roman numeral I denotes state I, in which the coating agent 06 is applied and a random orientation takes place, and the number III denotes state III, in in which visualization orientation takes place.

The printed image elements 08, applied to the substrate 02 from the variable coating agent 06 by means of the application device 04 before the processing carried out by the orienting device 07, can correspond in size and position to the optically variable image elements 03 to be obtained or, if necessary, can also be larger than them, and in some cases even to correspond to the area of several blanks 09. In the case of larger printed image elements 08, the optically variable image element 03 is obtained by orienting, for example, not on the entire surface covered with the optically variable coating means 06.

As the particles P responsible for the optical multivariability, the coating medium 06, for example the printing ink 06 or varnish 06, in this case contains magnetic or magnetizable non-spherical particles P, for example pigment particles P, hereinafter also briefly referred to as magnetic flakes. These particles preferably have a non-spherical flat shape with a longitudinal axis extending in the direction of their greatest extent, an axis extending in the width direction perpendicular to the longitudinal axis, and a thickness extending in the direction of both axes that is less than the length and width.

The machine 01 is preferably designed for the purpose of producing blanks 09, for example securities 09, in particular banknotes 09, or semi-finished products of such securities 09, for example parts of printed material containing printed images of several similar securities 09. Substrate 02, for example printed material 02 may be formed, for example, from cellulose or preferably cotton fiber-based paper, a synthetic polymer or a paper-polymer hybrid product. Before coating on the above-mentioned device 04, the substrate 02 may be previously uncoated or coated, may not be sealed or previously sealed once or repeatedly, or may be mechanically processed elsewhere. On a longitudinal section of the sheet-like substrate 02 or a sheet of sheet-like substrate 02 are arranged sequentially in the transport direction T, respectively, to be placed during the processing of the substrate 02, preferably several blanks 09, for example, to be produced banknotes 09, in one row next to each other and several similar rows of blanks 09, respectively the printed image (see, for example, Fig. 2).

The machine 01, designed as a printing machine 01, can in principle comprise one or more printing units 04 equipped with one or more printing apparatuses suitable for any printing method. However, in a preferred embodiment, the machine 01 includes a printing section 04 with at least one of the printing apparatuses 11; 12, preferably operating in accordance with a flexographic printing method or a screen printing method, whereby the optically variable coating agent 06 is applied, respectively, can be applied to the first side of the printing material 02. By the above printing methods, especially the screen printing method, a thicker layer can be applied compared to other printing methods. In this case, the definition of “first side” of the substrate 02, respectively the printed material 02, is chosen arbitrarily and should indicate that side of the printed material 02 on which the optically variable coating agent 06 is applied, was or can be applied.

In the above and preferred embodiment, the printing machine 01 includes a supply unit for the printed material 13, for example, a device for unwinding rolls 13 or preferably a feeder 13, from which, for example, a web-shaped or preferably sheet-shaped printed material 02 - if necessary passing through other printing or processing devices - supplied, or can be supplied, to the printing section 04, which applies the optically variable coating agent 06, for example, to the flexographic or, in particular, screen printing section 04, equipped with at least one printing apparatus 11; 12, for example, by a flexographic printing machine or, in particular, by a screen printing machine 11; 12. In the above and preferred embodiment, two screen printing apparatuses 11 are provided; 12, which are preferably combined into one printing section 04 and formed between a corresponding plate cylinder 14; 16, for example, with a screen printing mesh cylinder 14; 16, and a common press cylinder 17, two printing places for the same, in this case the first side of the printed material 02 (see, for example, Fig. 4). Thanks to the design of the printing apparatus in the form of a screen printing apparatus 11; 12 Topcoat 06 can also be applied in a thicker layer. Along the substrate transport path between two printing locations, a drying and/or curing device 18 may be provided directed at the first side of the printed material 02 to be transported through the printing section 04, for example, an ultraviolet dryer 18. An optically variable coating agent 06 may be applied or applied by only one screen printing apparatus 11; 12 or through both screen printing machines 11; 12.

The printing apparatus 11 serves as imaging cylinders; 12 preferably includes a plate cylinder 14; 16 with a large number, in particular, of the same type and/or identical visualizing printed subjects or, in particular, of the same type and/or identical groups of visualizing printed subjects on a circle, which are located along the circumference corresponding to the length of the printed image, in several transverse to the transportation direction T , equidistant from each other columns, the number of which, for example, is from four to eight, in particular, from five to seven, for example, six, and along the width of the cylinder corresponding to the width of the printed image, in several lines, equidistant from each other in the direction transportation T. Such printed subjects in the case of the printing apparatus 11, 12, operating on the principle of flexographic printing, are made in the form of letterpress relief, and in the preferred case of the printing apparatus 11; 12, operating on the principle of screen printing, in the form of a screen template.

The print material 02 from the printing section 04 applying the optically variable coating agent 06 can be guided by the transport means of the first transport device 19 to the orienting device 07. In the case of a web-shaped print material 02, the orienting device 07 may be one or more power-driven or non-powered rollers , by means of which the printing material 02 can be supplied or directed into the orienting device 07 from the entrance side. In the preferred case of sheet-shaped printing material 02, that is, individual sheets of printing material 02 passing through the machine 01, sheet-conducting means are provided as transport means.

Such sheet transport means, in an embodiment not shown in the drawings, may be formed by one or more transfer cylinders or transfer drums which receive sheets of printed material 02 from the printing section 04, for example from the press cylinder 17, and in some cases by one or more other transfer cylinders or transfer drums transfer them to the orienting device 07 from the input side. However, in the embodiment presented in the present description, the first transport device 19 is made in the form of a circular gripping conveyor 19, for example, a so-called chain gripping system 19, which includes an endless traction element 21 that wraps around both sides of the frame, for example, endless chains 21 equipped with transversely extending direction of transportation T by the strips with grippers 22. The advancing ends of the sheets can be captured by the strips with grippers 22, and the sheets of the printed material 02 can move along the transport path and ultimately arrive at the corresponding transport or receiving means. At least in the transfer zone of the sheet of printing material 02 from the printing section 04 and in the zone of its feeding into the orienting device 07, there is preferably a chain gear 23, respectively; 24, also called chain gripper wheel 23; 24.

After passing through the orienting device 07, described in more detail below, the printed material 02 can be directed by means of an additional transport means, for example a second transport device 26, to the finished product receiving unit 27 for receiving the printed material 02 processed and/or processed in the machine 01, for example to a winding to the device 27 in the case of a web-shaped printed material 02 or to the stack 27 in the preferred case of a sheet-shaped printed material 02. In the case of a web-shaped printed material 02 it can also be one or more power-driven or non-powered rollers, which continue the path carried out by the first transport device 19 transport through the orienting device 07 and through which the printing material 02 can be guided or introduced into the winding device 27 from the entrance side. In the preferred case of the sheet-shaped printing material 02, sheet-conducting means are provided as the transport means.

The sheet conveying means may be formed, as stated above, by one or more transfer cylinders or transfer drums which receive sheets of printing material 02 from the orientation device 07 and transfer them to a downstream stack 27. The second transport device 26, similar to the first transport device described above, is preferably made in the form of a circular gripping conveyor 26, for example, a chain gripper system 26 with endless traction elements 28 encircling the frame, for example, endless chains 28, one or more chain gears 31, respectively chain grippers wheels 31, as well as strips with grippers 29, through which sheets of printed material 02 are received from a section of the transport path through an orienting device 07 and fed, for example, to a slipway 27 (see, for example, Fig. 1).

On the transport path of the printed material leading from the orienting device 07, an additional drying device can be provided with one or more dryers 32 directed towards the first side of the printed material 02, for example, thermoradiation dryers 32. In a preferred embodiment of the invention not shown in the drawings, on the transport path between the orienting device 07 and the stack 27, in particular, behind the additional drying device on the transport path of the printed material 02 between the orienting device 07 and the receiving unit for the finished product 27, a cooling device is provided. It can be made, for example, in the form of a cooling roller located between the second transport device 26 coming from the orienting device 07 and the third transport device, for example, also made in the form of a circular gripping conveyor, for example, a chain gripping system. In an improved embodiment of the invention, a monitoring device, not shown in the drawings, may be provided, for example a matrix sensor television camera or a single line television camera directed, for example, at a segment of the side surface of the roller, configured as a chill roller or otherwise.

The orienting device 07, described in detail below, is in principle characterized by arbitrary designs, design options or configurations, however, it is preferably provided or can be provided for use in the above-described machine 01, respectively the printing press 01. In a preferred design, it is designed as module, which can be introduced into the transport path of the substrate through the input and output interfaces of sections with open ends that continue the transport system along the transport path of the substrate in the machine 01 equipped with the module upstream and downstream of the process flow.

An orienting device 07 for forming optically variable image elements 03, for example, to create an optically variable effect in a previously - for example, in the form of printed image elements 08 - applied to the substrate 02, in particular, the printed material 02, optically variable coating means 06, includes a certain a transport path along which the substrate 02 to be moved through the orienting device 07 is supplied from the input region, and on which the substrate 02 to be processed, including on the first side the optically variable coating means 06, is brought into a certain kinematic connection with the magnetic fields generating and including magnets 44 orienting device 33; 33', preferably in such a way that the magnets 44 of the orienting device 33 used for visualization orientation; 33' and the printing material 02, printed with the particle P-containing printing ink 06, moved synchronously with each other in at least one section of the transport path. Orienting device 33; 33' is preferably made in the form of magnetically active cylinders 33; 33‘, briefly called magnetic cylinders 33; 33', which have a system of magnets 44 on the circumference and through which the printed material 02 moves or moves towards the output region of the orienting device 07. In the preferred embodiment, the printed material 02 moves through the magnetic cylinders 33, 33' with the previously printed image elements 03 facing outwards.

In this case, by magnet 44, in addition to a solid or separate, optionally engraved permanent magnet or separate electromagnet, one should also mean a plurality of individual permanent magnets and/or electromagnets combined into a magnetically active unit 44 in order, for example, by superposition to create a certain external magnetic field, in in particular, different from the field of a separate magnetic dipole. By the first side of the substrate including the optically variable coating means 06 is meant, in particular, that side thereof on which the optically variable coating agent can be applied, is or has been applied by means of the application device 04 in the transport path, for example upstream. remedy 06.

For easier terminological identification of other orienting devices 42 described in more detail below; 43 the above-mentioned first orienting device 33; 33', which provides visual information, is also briefly called "visualizing" orienting device 33 in this case; 33' in the sense that it provides magnetically induced visual information. In this case, visualization means any non-uniform visual information, in particular caused by the orientation of magnetic particles, which in principle can be represented by means of a drawing, alphanumeric characters, a graphic image or a combination thereof.

In principle, two similar first orienting devices 33, 33', in particular cylinders 33, which visualize or provide visual information, can also be provided on the transport path; 33', located on the same or on different sides of the substrate 02 to be moved along the transport path (see, for example, Fig. 5). In shown in FIG. 5 example, they are located on the same side of the transport path of the substrate, and between them there is a cylinder 34, made in the form of a transport or transfer cylinder 34.

In an embodiment of the invention with one first orienting device, respectively visualizing or providing visual information, at least one additional orienting device 42 can be placed in front of and/or together with this first orienting device 33; 43.

In an embodiment of the invention with two first, respectively visualizing orienting devices in front of each orienting device 33; 33' or at least one additional orienting device 42 can be placed together with it; 43.

In addition to the above imaging first orientation device 33; 33‘, respectively to the magnetic cylinder 33; 33', in a first particularly preferred embodiment of the invention, in front of the first orienting device 33 on the transport path of the substrate to be transported 02, there is at least one additional orienting device 42 used for pre-orientation with a large number of magnets 46, which, in particular, are stationary during operation are placed in the machine or device, wherein the orienting device 42 is arranged in such a way that it can be used to achieve a preliminary orientation of the particles P at least in the surface areas adjacent to the imaging partial areas. In particular, the magnets 46 of this second orienting device 42 are configured and oriented in such a way that the particles P of the surface region passing through the sphere of action of these magnets are oriented, at least with respect to the course of the longitudinal axis, in the plane of the substrate, for example parallel to each other, or uniformly oriented differently. However, the magnets 46 of this second alignment device 42 are preferably configured and oriented in such a way that the particles P of the surface region passing through the sphere of action of these magnets are oriented with respect to each other biaxially, for example, parallel, or are otherwise uniformly oriented so that by means of this surface region an uniform optical effect. This means, for example, that the particles P are uniformly oriented relative to each other both with respect to their longitudinal direction and with respect to their course in the width direction, for example, parallel or otherwise. Although, ideally, for subsequent overlay of visual information, preference should be given to a uniform, mainly parallel orientation, a uniform optical effect, correspondingly a uniform orientation, in a broader sense can also mean a smooth change in color or intensity in one direction, then there is no noticeable step change. A similar result is achieved, for example, thanks to only a slowly and smoothly changing inclination of the corresponding axis in one direction, that is, without a stepwise change in its stroke.

In the most preferred embodiment of the invention, the magnets 46 are configured and arranged in such a way that the particles formed by the magnetic fields they generate, for example, planar particles P, the length of which exceeds their width, are oriented, respectively oriented in the corresponding surface region of the image element 03 in such a way that their flat sides were parallel to the substrate surface and/or the longest axes of all particles were directed in the same direction. In this case, by magnets 46, in addition to solid or separate, optionally engraved permanent magnets or electromagnets, one should mean, in particular, also a plurality of individual permanent magnets and/or electromagnets combined into a magnetically active unit 46, used to, for example, by superimposing generate a certain external magnetic field, in particular, different from the field of a separate magnetic dipole. In the preferred embodiment, they are made in the form of a magnetically active block 46 of a complex structure consisting of a plurality of permanent magnets.

In an embodiment of the invention not shown in the drawings, according to which in front of the magnetic cylinder 33; 33' by the first orienting device 33; 33' there is an additional orienting device intended for preliminary orientation of particles P, and for a transport device 19 located before the magnetic cylinder 33; 33', instead of the circular gripping conveyor 19 there is a transport cylinder (for example, comparable to the transport cylinder 34), the additional orienting device 42 provided for preliminary orientation is preferably designed as shown in FIG. 5, on the circumference of the transport cylinder 34 and preferably with curved magnets 46'.

In a particularly preferred or improved embodiment, instead of the above-mentioned first additional orienting device 42 or preferably in addition to it, an additional orienting device 43 with one or more magnets 47 is provided for simultaneous orientation, which is located on the transport path opposite to the first orienting device 33 sides in such a way that the same and/or adjacent surface areas of the same image element 03 to be obtained by feeding the substrate 02 with the coating means interact at least in one place along the transport path simultaneously with first and with an additional orienting device 33; 43, designed for simultaneous orientation of the particles P. In other words, the particles P of the image element 03 in at least one place of the transport path are subject to an orienting force caused by the magnetic field of the magnet 44 of the first orienting device 33, as well as simultaneously to the same and/or other particle P of the same image element 03 is subject to an orienting force caused by the magnetic field of a magnet 47, designed for simultaneous orientation of an additional orienting device 33. In this case, by magnets 47, along with solid or separate, optionally engraved permanent magnets or electromagnets, one should mean, in particular , also combined in a magnetically active unit 47, a plurality of individual permanent magnets and/or electromagnets are used to, for example, by superposition, generate a defined external magnetic field, in particular different from the field of a separate magnetic dipole. In the preferred embodiment, they are made in the form of a magnetically active block 44 of a complex structure consisting of a plurality of permanent magnets.

In fig. 2 in the right half (Fig. 2 b) schematically shows the effect of preliminary and/or simultaneous orientation, the Roman numeral II representing the state II in which the covering means 06 has been oriented, for example, previously or simultaneously, but the visualizing orientation in the above sense is still did not take place, and accordingly remained on the drawing without attention.

Details and preferred design details of the additional orientation device 42 used for pre-orientation and the additional orientation device 43 used for simultaneous orientation are discussed in more detail below.

The first or only magnetic cylinder 33 is located on the transport path of the substrate 02 to be transported, preferably on the second side of the latter, whereby the first side of the substrate 02, in particular coated upstream with the optically variable coating means 06, when transporting the substrate 02 through the first, Accordingly, the only magnetic cylinder 33 faces outward.

The magnetic cylinder 33 in the region of its outer circumference has a plurality of magnets 44 designed to orient at least a portion of the magnetic or magnetizable particles P contained in the coating means 06 applied to the permeable sealing material 02. According to the invention, magnets generally mean magnetically active devices that continuously or switchably generate a magnetic field directed at least towards the side of the transport path (in particular, a magnetic field strong enough to orient the particles P contained in the coating means 06 applied to the substrate 02). The magnets 44 may be formed by one or more permanent magnets with or without engraving, electromagnets, or combinations of one or more permanent magnets and/or one or more electromagnets. Regardless of whether we are talking about a single magnetic element or a combination of several magnetic elements, for example, permanent magnets and/or electromagnets, the magnetic elements that form one whole and together form the active unit are hereinafter briefly referred to as magnets 44. Similar a magnet can be assembled, for example, from several differently oriented permanent magnets, which together generate an external active magnetic field.

In the case of the above-mentioned large number of blanks 09 per substrate 02, for example, on a section of the substrate or a sheet of printed material, respectively substrate 02, several rows of magnets 44 transverse to the transport direction T are provided on the circumference, located at a certain distance from each other each other, which, when deployed on the substrate 02, correspond to the pattern of image elements 03 on the substrate 02 subject to the influence of magnetic fields. When the substrate 02 is passed through the magnetic cylinder 33 as described above, in which, for example, the first side of the substrate 02 faces outward when transported through the first cylinder 33, the orientation of particles P is carried out by means of magnets 44, in this case, for example, end-to-end orientation through the substrate 02. A cylinder not equipped with magnets in this case is also called a cylinder body, which, after being equipped with magnets 44, becomes active in the same way as a magnetic cylinder 33.

The magnets 44, if necessary together with a corresponding fastening device, are preferably placed or can be releasably placed on the cylinder 33 in such a way that they can be placed in a mounted state at a certain location on the circumference of the cylinder 33 and are preferably completely removed from the cylinder 33 and/or positioned on the circumference cylinder 33 in the axial and/or circumferential direction.

In this case, the magnets 44 can be or can be located in several annular elements 37 or on several annular elements 37 spaced from each other and preferably positioned in the axial direction, the number of which is, for example, from four to eight, in particular from five to seven, for example six, and in these ring elements 37 or on them, in turn, at least one magnet 44, preferably several magnets 44, for example from two to twelve, preferably from five to ten magnets 44, preferably with the possibility of their sequential positioning in the circumferential direction (see, for example, Fig. 6). The annular elements 37 in the area of their outer circumference are closed, for example, by circumferential covers 48, for example, covers 48 or cover plates 48 monolithically connected to the annular ribs, in which, for example, the above-mentioned suction openings 49 are provided, as well as recesses not shown in the drawing in the corresponding place magnetic elements 44 (for example, shown in Fig. 6 for part of the right annular element 37). Alternatively, a cover 48 extending axially through all the annular elements 37 can be provided, which in appropriate places includes recesses and/or suction openings 49. The suction openings 49, in particular the suction channels 51 underlying them, are connected to the vacuum pump, for example by means of pipeline and the rotating joint located on the end side.

The magnetic cylinder 33 in the case of the web-like substrate 02 can be formed without any fixing means acting on the substrate 02. If necessary, the above-mentioned air suction openings can be provided around the circumference, which are connected to a vacuum pump and serve to securely adhere the substrate 02 to the side surface of the cylinder 33. In the preferred case of a sheet-shaped substrate 02, fixing means 36, for example, grips, are preferably provided on the circumference of the cylinder 33 36 of the so-called gripper strip, by means of which the advancing edge of the substrate sheet 02 to be transported through the cylinder 33 is received, which during the rotation of the cylinder 33 can be held or held within a certain angular range. In this case, the magnetic cylinder 33, made in the above manner, simultaneously serves to transport the substrate 02.

The magnetic cylinder 33 is mounted with the possibility of bilateral rotation in the walls of the frame 38; 39, for example, in the side parts 38; 39 of the frame carrying the structural elements of the orienting device 07.

As stated above, particles P deposited, for example, in at least one surface area significant for the image or subject to be executed, before interacting with the orienting device 33 provided for the imaging orientation; 33', respectively higher than the latter in the process flow, and/or at least at the time or during the time interval of interaction with the orienting device 07 provided for visualization orientation, can be oriented using at least one other orienting device 42; 43, designed for pre-orientation and/or simultaneous orientation (see, for example, Fig. 8-12).

The effect of such pre-orientation is clearly shown in Fig. 2, with its left part (in FIG. 2a) schematically showing the orientation carried out only by means of the visualizing orienting device 33; 33', while for comparison on the right side (Fig. 2b) an orientation using at least one additional orienting device 42 is shown; 43, providing preliminary orientation and/or simultaneous orientation. In the latter case, for example, instead of the arrangement of particles P existing outside the pictorial motif or drawing with a chaotic orientation, they are uniformly oriented, for example, in parallel or in another way, and, therefore, form a background that gives the drawing or pictorial motif with differently oriented particles P a higher contrast.

The additional orienting device 42 used for preliminary orientation is preferably stationary and in working condition on the transport path.

The magnets 46 of the pre-orientation additional orienting device are preferably provided on the side of the transport path opposite to the side on which the pre-orientation transport path was last printed, respectively, on which the coating means 06 was applied. That is, on the side on which the last time printing was carried out, accordingly, magnets 46 are preferably not provided on the freshly printed side of the transport substrate 02.

Although in principle it is possible to provide a magnet 46 which extends over the entire effective width of the orientation device 42 and consists of a single part or several parts, the additional orientation device 42 provided for pre-orientation preferably has a plurality of magnets 46, for example from four to eight, in particular , from five to seven, for example six magnets 46 located transverse to the direction of transportation T at a certain distance from each other. This minimizes problems caused by unintentional magnetic fields.

In order to be able to perform an adjustment by substitution and/or to carry out work in a simple manner without prior orientation, the magnets 46 of the additional orienting device 42 are detachably arranged on the support structure 52. In addition or alternatively, the support structure 52 together with the magnets 46 can be removably placed in the frame of the orienting device 07.

In a particularly preferred embodiment, the magnets 46, which are detachable and removably detachable from the supporting structure 52, can be replaced by spacers 56, for example, guide sheets 56. This allows operation without this additional orientation and without disruption of the position of the particles P due to the magnets 46. At the same time, the spacers 56 protect substrate 02 from damage.

For dismantling or mounting the magnets 46, for example, a gripping tool 63 is provided, for example a gripper 63, which grips magnetic or magnetizable elements in the area interacting with the magnets 46. To avoid point contact of the gripper 63 with the surface of the magnet, the gripper 63 may be provided with a plate capable of covering a large area of the magnet surface.

In a preferred embodiment of the invention, the spacer 56 may be made of a magnetizable material, for example magnetizable special steel. In this embodiment, the spacer 56 for removal or installation can also be held by means of a detachable gripping tool 64, for example, by means of a detachable gripper 64, which, respectively, which, for example, grips magnetically active elements, for example one or more permanent magnets in interaction with spacer 56 zone.

In a preferred embodiment of the invention, the magnets 46 of the additional orienting device 42 used for preliminary orientation are located on the support structure 52 in the transport direction T, transverse to the horizontal direction, with the possibility of adjustment, which, for example, makes it possible to obtain workpieces 09 of different formats and/or workpieces 09 with variable positioning of image elements 03.

To do this, the magnets 46 of this additional orienting device 42 are mounted with the possibility of transverse movement on one or more traverses 53, for example, they are guided in one or more guides 57, for example linear guides 57.

To secure the magnets 46 in the required position, a locking device 58 is provided, for example a clamping mechanism 58, which can be operated preferably manually and without the use of tools. In this case, we can talk, for example, about a handwheel, by means of which the threaded rod can be brought to the magnet-carrying 46 cross-beam 53 and removed from it.

To create and/or maintain a certain distance between the magnet 46 and the substrate 02, respectively the transport path of the substrate 02, the magnets 46, for example, are adjacent to the stop means 59 in a direction perpendicular to the transport path of the substrate 02. The magnets 44 are preferably, or can be subjected to, elastic force, for example the elastic force of one or more spring elements 62, exerted in particular on the stop means 59 in the direction of the transport path of the substrate 02.

The stop means 59 can be made in the form of an adjustable register element 59 and can be driven, for example, by means of a register screw 59. Depending on the location of the head of the register screw, a stop or, as shown in the drawings, a lower head ring or held by it can be formed. washer.

The magnet 46 of the additional orienting device 42 is fixed, or can be fixed on the fastening device 54, preferably by means of a register screw 59, and the distance to the transport plane of the substrate 02 can be adjusted, for example, by means of the depth of screwing in the register screw 59.

In a preferred embodiment of the invention, the magnet 46 can be easily detached from the support structure 52, for example from the fastening device 54 that supports the magnets 46 and located on the cross-arm 53, in particular with the possibility of transverse movement, for example from the bracket 54. In this case The bracket 54 on its upper side may have a support plate 69 on which a magnet 46 is fixed or mounted. The magnet of the additional orienting device located in front of the first orienting device is held by means of a connection acting with positive closure in the direction of the transport path, said connection being removable due to movement magnet with at least one motion parameter lying in a plane parallel to the transport plane.

Such a form-fitting connection can be realized, for example, on one side, for example on one edge, by means of the above-mentioned register screw 59 and, in particular, by a groove 61 in the form of a corresponding molded groove or slot 61, and on the other side, for example , on the other edge, for example, can correspond to a stop means 67 acting in the direction of the transport path, for example a register screw 67, also acting as a register element 67, which also fits into the groove 68, for example a groove 68 or preferably a lateral open slot 68 (see, for example, Fig. 11). Registration screws 59; 67 and recesses 61; 68 may be recessed into recesses 65 containing magnets 46, for example, so-called pockets 65, the abutment surfaces of said screws and recesses touching the bottom of the recess 65 or, in the case of a bottom housing the magnets 46, the magnets 46.

In a preferred embodiment of the invention, a blower device 78 may be provided by which the substrate 02 is pressed against the magnets 46. The blower device 78 may have a blower pipe 79, which extends transversely to the transport direction T of the substrate 02, provided with exit holes extending in the same direction air and through the supply pipeline is supplied with air from an appropriate source. As a result, a specific position of the substrate 02 is achieved and/or a largely uniform magnetic field is generated in the coating due to close contact.

In the case of transport of the substrate via the circular gripping conveyor 19, all grips of the strip 22 or at least one or more grips of the strip 22 can be made of non-magnetic or non-magnetizable material.

As stated above and shown in FIG. 1, 4 and 8-10, the magnets 46 of the additional orienting device 42, which provides preliminary orientation, can be located on a linear section of the transport path of the substrate and, at least on its side facing the transport path, can have a flat shape elongated in the transport direction T. This occurs, for example, if the transport device 19 in the area of the orienting device 42 has a linear section.

However, in particular, if the orienting device 07, respectively the visualizing orienting device 33; 33' is preceded by a curved section of the transport path of the substrate, for example the transport cylinder 34, the magnets 46 of the additional orienting device 42 can be located, for example, on the curved section of the transport path formed by the circumferential section of such a rotating transport means, and at least on the one facing the transport path side have a curved shape elongated along the transport path, in particular, a segment-shaped curved shape.

Instead of the above-mentioned first additional orienting device 42, or preferably in addition to this additional orienting device 42, the second additional orienting device 43 discussed above is preferably provided with one or more magnets 47, which is located on the side of the substrate transport path opposite to the first orienting device 33.

This orienting device 43, which is provided for orientation, is preferably also stationary and operatively placed on the transport path of the substrate.

The magnets 47 of this orienting device 43 are preferably provided on the circumference of the imaging orienting device 33, made in the form of a magnetic cylinder 33, on the opposite side of the substrate transport path.

The additional orienting device 43 provided for simultaneous orientation preferably includes a plurality of, for example, four to eight, in particular five to seven, for example six, magnets 47 arranged transversely to the transport direction T and spaced from each other.

In a preferred embodiment of the invention, the magnets 47 of this additional orienting device 43 are located on a support structure 71, which is mounted in the device frame in a variable position so that the magnets 47 can be moved from a working position to an adjustment position or a passive position with a greater distance to the transport path compared to the working position, and vice versa.

For this purpose, the support structure 71, which carries the magnets 47 of the additional orienting device, is mounted in the frame of the orienting device 07, preferably in such a way that it can be rotated around an axis 72 running transverse to the direction of movement T, for example, around the swing axis 72.

In an embodiment of the invention, for example, particularly preferred for ensuring high product versatility, the magnets 47 of the additional orienting device 43 are placed with the possibility of movement in the horizontal direction transverse to the transport direction T, respectively, with the possibility of adjustment on the support structure 71.

For this purpose, the magnets 47 of the additional orienting device 43 are mounted, for example, on one or more cross-beams 73 with the possibility of transverse movement. By means of a locking device 76, for example comparable to the above-mentioned clamping mechanism 58 and configured as a clamping mechanism 76, the magnets 47 can be fixed in the desired position.

To do this, the magnets 47 of this additional orienting device 43 are mounted on one or more traverses 77, for example, by means of a corresponding fastening device 77, with the possibility of transverse movement, for example, by means of one or more brackets 77, moved in one or more guides 74, for example, linear guides 74 .

In particular, in the case of the preferred design of the visualizing orienting device 33, 33' in the form of a magnetic cylinder 33; 33', the magnets 47 of the additional orienting device 43, used for simultaneous orientation, are located on a curved section of the transport path, in particular, on the circumference of the magnetic cylinder 33, 33', and at least on the side facing the transport path along the transport path have an elongated curved shape, in particular, a segment-shaped curvilinear shape.

Regardless of the location of one or both additional orienting devices 42; 43, in a preferred embodiment of the invention, a drying and/or curing device 41 is located on the transport path; 41' in such a way that it affects that part of the transport route that is still within the range of action of the visualizing orienting device 33; 33'.

In a particularly preferred embodiment, the drying and/or curing device 41; 41‘ is directed to a section of the circumference of the first orienting device 33 located on the transport path, made in the form of a magnetic cylinder 33; 33'.

A similar drying and/or curing device 41; 41' is preferably made in the form of a thermoradiation dryer 41; 41‘, in particular, ultraviolet dryer 41; 41‘, and/or in the form of an LED dryer 41; 41‘, in particular, UV-LED dryer 41; 41'.

In the preferred embodiment of the machine 01, a corresponding additional orienting device 42; 43 preferably includes magnets 46, 47 in a number corresponding to the number of columns mentioned above, for example four to eight, in particular five to seven, for example six magnets 46, 47, located along the transport path of the substrate in such a way that printed plots or groups of visualizing printed plots along the transport path were at least respectively partially aligned with the lateral position of the magnets 46; 47 of the corresponding additional orienting device 42; 43.

Positions on drawings

1 01 optical variable image element machine, printing machine, security printing machine

02 substrate, printed material, sheet of printed material, backing sheet

03 picture element

04 applicator, printing unit, flexographic printing unit, screen printing unit

05 -

06 coating agent, printing ink, varnish

07 device for orienting magnetic particles in image elements, orienting device

08 printed image element

09 blank, security paper, banknote

10 -

11 printing machine, flexographic printing machine, screen printing machine

12 printing machine, flexographic printing machine, screen printing machine

13 feeding unit for printed material, device for unwinding rolls, feeder

14 plate cylinder, mesh cylinder for screen printing

15 -

16 plate cylinder, mesh cylinder for screen printing

17 back pressure cylinder

18 drying and/or curing device, ultraviolet dryer

19 transport device, circular gripping conveyor, chain gripping system

20 -

21 endless traction organs, endless chain

22 bars with grips

23 sprocket, grip sprocket

24 sprocket, grip sprocket

25 -

26 conveying device, circular gripping conveyor, chain gripping system

27 product receiving unit, winding device, stacking lining

28 endless traction organ, endless chain

29 bar with grips

thirty -

31 sprockets, grip sprocket

32 dryer, thermoradiation dryer

33 orienting device, cylinder (first), magnetic cylinder

34 cylinder, transport cylinder, transfer cylinder

35 -

36 fixing means, grip

37 ring element

38 bed wall, side part

39 bed wall, side part

40 -

41 drying and/or curing devices, thermoradiation dryer, ultraviolet thermoradiation dryer, ultraviolet dryer, ultraviolet LED dryer

42 second orienting device

43 additional orienting device

44 magnet, magnetically active block

45 -

46 magnet, magnetically active block

47 magnet, magnetically active block

48 cover, trim

49 suction hole

50 -

51 suction channels

52 support structure

53 traverses

54 fastening device, bracket

55 -

56 spacer, guide sheet

57 guide, linear guide

58 fixing device, clamping mechanism

59 thrust means, register element, register screw

60 -

61 grooves, groove, slot

62 spring element

63 gripping tool, gripper

64 gripping tool, gripper

65 recess, pocket

66 -

67 thrust means, register element, register screw

68 groove, groove, slot

69 carrier plate

70 -

71 support structures

72 swing axis

73 traverses

74 guide, linear guide

75 -

76 fixing means, clamping mechanism

77 fastening device, bracket

78 blower

79 discharge pipe

33‘ first additional orienting device, cylinder, magnetic cylinder

41' drying and/or curing device, ultraviolet thermal radiation dryer, ultraviolet dryer, ultraviolet LED dryer

46' magnet

P particles, pigment particles

T direction of movement

I chaotically oriented state

II oriented state

III visualizing oriented state

Claims (15)

1. A machine (01) for obtaining optically variable image elements (03) on a substrate (02), including a supply unit for the printed material (13), at least one printing section (04) with at least one printing apparatus (11; 12 ), by means of which at least the first side of the substrate (02) passing through the machine (01) along the transport path, the finished product receiving unit (27), is sealed and/or can be sealed with a coating agent (06) containing magnetic or magnetizable particles, intended for basing the substrate (02) processed in the machine (01), as well as a device (07) for orienting magnetic or magnetizable particles contained in a coating agent (06) applied to the side of the web-like or sheet-like substrate (02), provided on the transport path of the substrate (02) between the printing section (04) and the finished product receiving unit (27), and the printing apparatus (11; 12) as a visualizing cylinder includes a plate cylinder (14; 16) with a plurality of visualizing printed scenes or groups of visualizing printed scenes on a circle, which are ordered along the circumference corresponding to the length of the printed image, in several columns located transverse to the direction of transportation (T), equidistant from each other, and along the width of the cylinder corresponding to the width of the printed images, in several lines, equidistant from each other in the transport direction (T), wherein the device for orienting magnetic or magnetizable particles (P) includes a first orienting device (33; 33'), which is located on the transport path of the substrate to be transported (02) and in the area of its side facing the transport path has a plurality of magnets (44) designed to orient at least part of the particles (P) contained in the covering means (06) in a certain way in the area provided with the covering means (06) in order to obtain visual information. 06) surface area, and the magnets (44) of the first orienting device (33; 33') and the substrate (02) equipped with particles (P) containing coating means (06) move synchronously with each other in at least one section of the transport path, characterized in that the device for orienting magnetic or magnetizable particles (P) includes at least at least one first additional orienting device (42), located on the transport path of the substrate to be transported (02), fixedly fixed in working condition on the transport path in front of the first orienting device (33; 33') and having a plurality of transverse to the transport direction (T) direction of transportation (T) of magnets (46), which during operation of the device remain in it in a stationary state, and the first additional orienting device (42) includes magnets (46) located on the circumference of the form cylinder (14; 16), the number of which corresponds to the number columns of visualizing printed subjects or groups of visualizing printed subjects and which are located on the transport path in such a way that the printed subjects or groups of visualizing printed subjects are respectively located along the transport path at least partially in line with the lateral position of the magnets (46) of the first additional orienting device ( 42). 2. Machine according to claim 1, characterized in that the first orienting device (33; 33') is formed by a magnetic cylinder (33; 33'), which is located on the transport path of the substrate to be transported (02) and has a plurality of magnets in the outer circumference area (44). 3. A machine according to claim 1 or 2, characterized in that a drying and/or hardening device (41) is located on the transport path in such a way that it acts on that part of the path of movement that is still in the range of action of the first orienting device (33 ; 33'). 4. The machine according to claim 3, characterized in that the drying and/or hardening device (41) is directed to a section of the circumference of the first orienting device (33; 33') located on the transport path, made in the form of a magnetic cylinder (33; 33') , and/or the drying and/or curing device (41) is made in the form of an ultraviolet dryer and/or in the form of an LED dryer. 5. The machine according to claim 1, characterized in that the first additional orienting device (42) intended for preliminary orientation is located on the transport path in front of the first orienting device (33; 33') in such a way that, due to the location and orientation of the magnets (46), surface areas comprising the visual information to be obtained, a uniform pre-orientation of particles (P) may be provided or provided, which have a non-spherical flat shape with a longitudinal axis extending in the direction of their greatest extent, an axis extending in the width direction perpendicular to the longitudinal axis, and extending perpendicularly both axes have a thickness less than the length and width, which refers at least to the course of the longitudinal axis of the particles (P) projected onto the plane of the substrate, which is parallel to it. 6. The machine according to claim 5, characterized in that the magnets (46) of the first additional orienting device (42) located in front of the first orienting device (33; 33') are configured and oriented in such a way that in the corresponding surface area, which includes the product to be obtained visual information, the particles (P) are uniformly biaxially oriented parallel to each other both with respect to an axis extending in the direction of their length and with respect to an axis passing in the direction of their width, thereby producing a uniform optical effect in this surface region. 7. The machine according to claim 5, characterized in that the magnets (46) of the first additional orienting device (42) located in front of the first orienting device (33; 33') are adjacent to the thrust means (59) in a direction perpendicular to the transport path and/or are subjected the influence of the force of one or more spring elements (62) carried out in the direction of the transport path of the substrate, and/or that the magnets (46) of the first additional orienting device (42) located in front of the first orienting device (33; 33') are held by means of corresponding connections (59 , 61; 67; 68), acting in the direction of the transport path with a geometric closure, and these connections are detachable due to the movement of the corresponding magnets (46) with at least one movement parameter located in a plane parallel to the transport plane. 8. The machine according to claim 5, characterized in that the magnets (46) of the first additional orienting device (42) located in front of the first orienting device (33; 33') are located on a linear section of the transport path and at least on them facing the transport path on the side they have a flat shape elongated in the transportation direction (T), or are located on a curved section of the transport path formed by the circumferential section of the rotating means of transportation, and at least on their side facing the transport path they have a curved shape elongated along the transport path. 9. The machine according to claim 1, characterized in that a spacer (56) is provided, with which the magnet (46) of the first additional orienting device (42) can be replaced, and/or a gripper (63) is provided, by means of which magnetic forces can be a magnet (46) of the first additional orienting device (42) is received. 10. The machine according to claim 1, characterized in that a second additional orienting device (43) with a plurality of magnets (47) is provided for simultaneous orientation, which is located on the transport path on the side of the transport path opposite to the first orienting device (33; 33') in such a way that the same surface portions of the surface region including the visual information to be obtained, at least in one place along the transport path, simultaneously interact with the first orienting device and the second additional orienting device intended for simultaneous orientation (33; 43). 11. The machine according to claim 10, characterized in that the magnets (47) intended for simultaneous orientation of the second additional orienting device (43) are provided on the circumference of the first orienting device (33, 33) made in the form of a magnetic cylinder (33; 33') on the side of the transport path opposite to the first orienting device (33, 33'). 12. The machine according to claim 10, characterized in that the second additional orienting device (43) has a plurality of magnets (47) located transverse to the direction of transportation (T), spaced from each other in a direction transverse to the direction of transportation (T), and/or that several magnets (46; 47) of the second additional orienting device (43) are located on the support structure (71) with the possibility of adjustment in the horizontal direction, transverse to the direction of transportation (T), and/or detachably. 13. Machine according to one of paragraphs. 10-12, characterized in that the second additional orienting device (43) includes a number of magnets (47) corresponding to the number of columns, located on the transport path in such a way that the printed plots or groups of visualizing printed plots, respectively, are at least partially located along the transport path on one straight line with the lateral position of the magnets (46) of the second additional orienting device (43). 14. The machine according to claim 1, characterized in that several magnets (46; 47) of the first additional orienting device (42) are located on the supporting structure (52; 71) with the possibility of adjustment in the horizontal direction transverse to the direction of transportation (T), and /or detachable. 15. The machine according to claim 14, characterized in that the magnets (46) of the first additional orienting device (42), located on the supporting structure (52) with the possibility of adjustment transverse to the direction of transportation (T), and/or detachably, are mounted on one or several traverses (53) with the possibility of transverse movement and/or can be fixed in the required position by means of a clamping mechanism (58).