Multi-application module, multi-application device, and method for operating a multi-application device
The multi-application module with a movable printing unit addresses the need for separate machinery by enabling flexible and efficient printing on both sheet substrates and transfer products on a single machine, reducing complexity and changeover times.
Patent Information
- Application Number
- PCT/EP2025/067829
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-05
- Filing Date
- 2025-06-25
- Publication Date
- 2026-01-08
AI Technical Summary
Existing printing and finishing devices require separate machinery for applying adhesive to substrates or transfer products, leading to increased costs and reduced flexibility due to differences in print quality and use cases, and changing web paths is complex and time-consuming, limiting the use of roll substrates.
A multi-application module with a movable printing unit that can switch between transfer product and sheet substrate positions, combined with a sheet substrate conveying unit, allowing both types of printing on a single machine, reducing machine complexity and changeover times.
Enables flexible use of a single machine for both sheet substrate and transfer product printing, reducing costs and increasing flexibility while achieving high-quality results without the need for separate machines, and allowing processing of sheet substrates.
Smart Images

Figure EP2025067829_08012026_PF_FP_ABST
Abstract
Description
[0001] Multi-application module, multi-application device and working method for a multi-application device
[0002] The invention relates to a multi-application module, a multi-application device and a working method for a multi-application device.
[0003] Substrates can be decorated using digital printing processes followed by the application of transfer layers in specialized printing and / or finishing devices. Using inkjet printing, it is possible to apply an adhesive directly to the substrate in a specially designed printing device. Alternatively, inkjet printing can also be used to apply an adhesive to the transfer product in a separate, equally specialized printing device. In both cases, the transfer product and the substrate are then brought together so that the transfer layers of the product adhere to the substrate via the adhesive and are subsequently separated from a carrier layer of the transfer product.
[0004] For example, WO 2016 / 150681 A1 discloses a method and an application device for applying a transfer layer of a film to a substrate, wherein a radically curable adhesive is applied to a partial area of the transfer layer by means of an inkjet printhead.
[0005] A particular disadvantage of the aforementioned methods is that they require specially designed printing and / or finishing devices for applying the adhesive to the transfer product or the substrate, or at least only such devices are currently known. For example, a specific machine is required depending on whether the adhesive is to be printed onto the substrate or the transfer product, which increases the machinery required and thus the costs, and also results in a lack of flexibility. This is especially true because the print quality and / or the intended use differ between these two cases.For example, applying pressure directly to the substrate usually results in the adhesive running and / or being absorbed into the substrate, whereas applying pressure to the transfer product usually requires additional effort in aligning the transfer product with the substrate.
[0006] From DE 102021132416 A1, for example, an application device for applying a transfer layer of a film to a substrate is known. With this application device, printing can be performed on both the substrate and the film in the same printing gap. Both the substrate and the film are supplied as rolls. Depending on whether printing is to be performed on the substrate or the film, the web path of the film or the substrate can be changed within the application device. A disadvantage of this application device, however, is that changing the web path is only possible when the device is stationary and is complex and time-consuming due to the large number of rollers. This leads to increased production downtime. Furthermore, this device can only be used with substrates supplied as roll stock.The invention is based on the objective of providing an improved printing and / or finishing device as well as an improved (working) method for a printing and / or finishing device, by means of which printing can be carried out on both the film and the substrate, substrates in the form of sheets can be finished and at the same time the downtime when changing over the device is reduced.
[0007] This task is solved by a multi-application module for printing on a sheet substrate or a transfer product, comprising a printing unit and a multi-function element and a cold transfer unit, wherein the printing unit is movable between a transfer product printing position and a sheet substrate printing position such that the printing unit either prints on the transfer product in the transfer product printing position or prints on the sheet substrate in the sheet substrate printing position.
[0008] This problem is further solved by a multi-application device comprising a multi-application module according to the invention, in particular according to one of claims 1 to 35, and a sheet substrate conveying unit for conveying one or more sheet substrates, wherein the sheet substrate conveying unit comprises a conveyor belt and / or a cylinder arrangement.
[0009] This problem is also solved by a (working) method for a multi-application device, preferably a multi-application device according to the invention, more preferably according to one of claims 36 to 45, wherein according to a first variant i) a printing unit is brought into the sheet substrate printing position and a sheet substrate is brought along a sheet substrate conveying unit to the sheet substrate printing position in order to print the sheet substrate and further the printed sheet substrate is guided to a cold transfer unit with which a transfer product is pressed onto the sheet substrate, or that according to a second variant ii) the printing unit is brought into the transfer product printing position and the transfer product is brought along the multifunctional element to the transfer product printing position in order to print the transfer product and further the printed transfer product is guided to the cold transfer unit,with which the transfer product is pressed onto the bow substrate.
[0010] The inventive multi-application module, the inventive multi-application device, and the inventive (working) method for a multi-application device enable both variants—printing on the sheet substrate and printing on the transfer product—to be carried out using one and the same machine, in particular one and the same printing and / or finishing device. This allows for flexible use, enabling the targeted utilization of the advantages of printing, especially in the form of an adhesive, on the sheet substrate or the transfer product without the need for two separate machines. Furthermore, sheet substrates can now be processed.The use of the multi-application module according to the invention in a finishing machine makes it possible to print on either the sheet substrate or the transfer product, since the multi-application module according to the invention has a movable printing unit that can be moved between a transfer product printing position and a sheet substrate printing position. This reduces machine complexity and thus costs, while simultaneously increasing flexibility to select the appropriate variant for each application and thereby achieve optimal results. At the same time, changeover times are significantly reduced, as the printing unit only needs to be moved to perform the other variant. Furthermore, it is advantageous that the machine can also be used solely for printing the transfer product or for printing the sheet substrate without subsequent cold transfer.
[0011] The term transfer product printing position refers to the position in which the printing unit is located above the multifunctional element in order to print the transfer product.
[0012] The sheet substrate printing position is understood to be the position in which the printing unit is located above the sheet substrate conveying unit in order to be able to print the sheet substrate there.
[0013] The term "transfer product" refers to a transfer film comprising a carrier layer and a transfer layer, whereby the transfer layer is detachable from the carrier layer.
[0014] Furthermore, it is advantageous if the transfer film includes a release layer, in particular one arranged between the carrier layer and the transfer layer, which is particularly removable.
[0015] Preferably, the release layer has a thickness between 0.01 pm and 10 pm, preferably between 0.1 pm and 5 pm, and / or consists of waxes, polyethylene (PE), polypropylene (PP), cellulose derivatives and / or poly(organo)siloxanes.
[0016] Preferably, the transfer layer is formed in one or more layers. It is possible for the transfer layer to include a decorative layer, in particular one or more layers selected from: opaque layers, translucent layers, transparent layers, colored lacquer layers, replicating lacquer layers, metal layers, or metal oxide layers. The transfer layer may, in particular, have a thickness between 1 pm and 10 pm.
[0017] It is also possible that the carrier layer comprises materials, individually or in combination, selected from: polyester, polyolefin, polyvinyl, polyimide (PI), acrylonitrile butadiene styrene (ABS), polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), and in particular a layer thickness between 3 pm and 50 pm, preferably between 3 pm and 23 pm.
[0018] Advantageously, the "sheet substrate" is a single-layer or multi-layer plastic substrate, a single-layer or multi-layer paper substrate, or a multi-layer hybrid substrate comprising one or more layers of paper and one or more layers of plastic. It is also possible for the sheet substrate to contain cotton fibers, wood fibers, cellulose fibers, textile fibers, and / or plastic fibers. The sheet substrate can be in sizes ranging from DIN A4 to DIN B1.
[0019] It is also conceivable to provide a multi-application module for printing on a sheet substrate or a transfer product, wherein the multi-application module comprises a printing unit and a multi-functional element, wherein the printing unit is movable between a transfer product printing position and a sheet substrate printing position such that the printing unit either prints on the transfer product in the transfer product printing position or prints on the sheet substrate in the sheet substrate printing position.
[0020] Thus, depending on the two printing positions, either the sheet substrate or the transfer product can be printed. Furthermore, it is conceivable to provide a (working) method for a multi-application device, wherein the multi-application device comprises a multi-application module with a printing unit and a multifunctional element, a cold transfer unit, and a sheet substrate conveying unit. According to a third variant iii), the printing unit is moved into the sheet substrate printing position, and a sheet substrate is conveyed along a sheet substrate conveying unit to the sheet substrate printing position in order to print the sheet substrate. The printed sheet substrate is then conveyed to the cold transfer unit. The third variant iii) is advantageously characterized by the fact that no transfer product is clamped and the pressure roller of the cold transfer unit is open.In other words, this means that in this working method according to the third variant iii), only one sheet substrate is printed.
[0021] Furthermore, it is also conceivable to provide a (working) method for a multi-application device, wherein the multi-application device comprises a multi-application module with a printing unit and a multifunctional element, a cold transfer unit, and a sheet substrate conveying unit. According to a fourth variant iv), the printing unit is moved into the transfer product printing position, and a transfer product is conveyed along the multifunctional element to the transfer product printing position in order to print the transfer product. The printed transfer product is then conveyed to the cold transfer unit. The fourth variant iv) is advantageously characterized by the fact that no sheet substrate is conveyed and the pressure roller of the cold transfer unit is open. In other words, this means that in this working method according to the fourth variant iv), only one transfer product is printed.Printing on the transfer product offers the advantage that it always uses the same substrate with identical properties. The print is only transferred to the sheet substrate after the ink has pre-cured or pre-dried. This process allows for high-quality transfer of the transfer layer of the transfer product onto uncoated sheet substrates.
[0022] It is advantageous if the multi-application module and / or the multi-application device and / or the working method for a multi-application device serve to apply a transfer layer of a transfer product onto a sheet substrate. Furthermore, it is advantageous if the multi-application module and / or the multi-application device and / or the working method for a multi-application device serve to print on a sheet substrate. It is also advantageous if the multi-application module and / or the multi-application device and / or the working method for a multi-application device serve to print on a transfer product.
[0023] Furthermore, it is preferred if the multi-application device is a multi-application device for applying a transfer layer of a transfer product onto a sheet substrate. It is also advantageous if the multi-application device performs this by means of a (working) method according to one of claims 46 to 56.
[0024] Furthermore, it is preferably possible that the multi-application device is a multi-application device for printing on a sheet substrate.
[0025] Furthermore, it is preferably possible that the multi-application device is a multi-application device for printing a transfer product. It is also conceivable that the (operating) method for a multi-application device is a method or working method, in particular for operating a multi-application device or for carrying out four (operating) variants or work cycles of a multi-application device. Preferably, the four (operating) variants or work cycles are the first variant i), the second variant ii), the third variant iii), and the fourth variant iv).
[0026] Furthermore, it is conceivable to use a multi-application module according to the invention for printing on a sheet substrate or for printing on a transfer product, in particular with a UV-curable ink.
[0027] It is therefore advantageous that the printing on the sheet substrate or the transfer product involves printing with a UV-curable ink, especially when the UV-curable ink acts as an adhesive. The UV-curable ink can be transparent, translucent, or opaque. It can be colorless or tinted with dyes and / or pigments. The colors of the dyes and / or pigments can be visible in visible light, under UV light, and / or under IR light.
[0028] Furthermore, a printing system is conceivable, wherein the printing system comprises a multi-application module, preferably according to the invention, more preferably for printing a sheet substrate or a transfer product, with a printing unit, a multifunctional element, and a cold transfer unit, and wherein the printing system further comprises the sheet substrate and / or the transfer product. It is also advantageous if the printing unit is movable between a transfer product printing position and a sheet substrate printing position such that the printing unit either prints the transfer product in the transfer product printing position or prints the sheet substrate in the sheet substrate printing position.Furthermore, a system is conceivable wherein the system comprises a multi-application module, preferably according to the invention, more preferably for printing on a sheet substrate or a transfer product, with a printing unit, a multifunctional element, and a cold transfer unit, wherein the system further comprises a sheet substrate conveying unit, and wherein the system further comprises the transfer product and / or the sheet substrate. It is also advantageous if the printing unit is movable between a transfer product printing position and a sheet substrate printing position such that the printing unit either prints on the transfer product in the transfer product printing position or prints on the sheet substrate in the sheet substrate printing position.
[0029] Advantageously, the sheet substrate or transfer product is guided or conveyed in the printing system or system, as already explained above and further detailed below. In other words, all features disclosed in connection with the multi-application module, the multi-application device, or the (working) method for a multi-application device are also transferable to the printing system and / or the system and are therefore also considered disclosed for the printing system and / or the system.
[0030] Further advantageous embodiments of the invention are described in the dependent claims.
[0031] Preferably, a printing gap is formed in the transfer product printing position between the surface of the transfer product and the printing unit, and in the sheet substrate printing position between the surface of the sheet substrate and the printing unit. Preferably, the printing gap in the transfer product printing position is arranged between the circumferential edge of the multifunctional element and the printing unit.
[0032] Preferably, the printing gap is arranged at the sheet substrate printing position between the sheet substrate feeder and the printing unit. In particular, it is provided that the printing gap is formed between the printing unit and the surface opposite the printing unit. The surface opposite the printing unit at the transfer product printing position can be, for example, the first multi-function roller and / or the printing table and / or at least one second multi-function roller. In particular, it is provided that the transfer product is stretched along two second multi-function rollers and / or along the first multi-function roller and a second multi-function roller on the side opposite the printing unit, so that the transfer product forms the surface opposite the printing unit. Furthermore, the surface opposite the printing unit at the
[0033] The sheet substrate printing position can also refer to a surface of a conveyor belt or a surface of a printing cylinder and / or transport cylinder.
[0034] The first and / or second multi-function roller can be, for example, an encoder roller or a deflection roller. For instance, the first multi-function roller can be an encoder roller and the second a deflection roller, or vice versa. Alternatively, it is also possible that both the first and second multi-function rollers are encoder rollers. It is also conceivable that both the first and second multi-function rollers are deflection rollers.
[0035] Therefore, it is advisable if the pressure gap at the
[0036] The transfer product printing position, in particular the distance between the transfer product guided on the circumferential edge of the multifunctional element and the printing unit, has a size between 0.1 mm and 5 mm, preferably between 0.5 mm and 3 mm, particularly between 0.5 mm and 1 mm.
[0037] It is also advantageous if the pressure gap at the sheet substrate pressure position, in particular the distance between the sheet substrate guided on the sheet substrate conveying unit and the pressure unit, has a size between 0.1 mm and 5 mm, preferably between 0.5 mm and 3 mm, particularly between 0.5 mm and 1 mm.
[0038] Furthermore, it is preferably provided that the printing unit prints the sheet substrate in the printing gap at the sheet substrate printing position. It can also be provided that the printing unit prints the transfer product in the printing gap at the transfer product printing position.
[0039] It is also preferred that, in the transfer product printing position, ink is ejected from the printing unit at an angle in the range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, and most preferably substantially perpendicular to the surface of the multifunctional element, in particular to the surface of the first multifunctional roller and / or to the flat printing surface and / or to the flat surface of the printing table. Advantageously, it is provided that, in the sheet substrate printing position, ink is ejected from the printing unit at an angle in the range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, and most preferably substantially perpendicular to the surface of the sheet substrate. For this purpose, it is particularly advantageous if the surface of the printing unit with the nozzles is arranged parallel or substantially parallel to the surface opposite the printing unit.This surface, opposite the printing unit, is preferably arranged horizontally and, in particular, is designed to be as flat as possible, i.e., it exhibits little to no curvature in one or more directions. In the case of the surface of the first multi-function roller and / or the printing cylinder, the surface should be cylindrically curved in only one direction, and this curvature should be minimized, for example, by using the largest possible diameter for the first multi-function roller and / or printing cylinder. Any undesirable distortions of the printed image on a curved surface can be at least partially compensated for by digital or electronic pre-distortion or pre-compensation of the digital print data, so that the printed image on the curved surface exhibits the least possible distortion.
[0040] Furthermore, it is advantageous if the multi-application module has two winding rollers for receiving the transfer product, in particular wherein the two winding rollers have the same or opposite directions of rotation.
[0041] For example, it is possible that one of the two winding rollers is driven clockwise and / or the other of the two winding rollers is driven counterclockwise.
[0042] However, it is also possible that one of the two winding rollers and one of the two winding rollers are each driven clockwise or counterclockwise.
[0043] In other words, it is also possible that the two winding rollers have the same or opposite directions of rotation.
[0044] It is therefore advantageous for the transfer product to be unwound from a first of two winding rollers and wound onto a second of two winding rollers, particularly wherein the first and second winding rollers rotate in the same or opposite directions. It is further advantageous for the transfer product to be unwound from a first of two winding rollers and wound onto a second of two winding rollers, particularly wherein the first winding roller is driven counterclockwise and / or the second winding roller is driven clockwise. For example, of the two winding rollers, a first one, i.e., the unwind roller, rotates counterclockwise to unwind the transfer product, and a second one, i.e., the winding roller, rotates clockwise to wind the transfer product or at least the carrier layer of the transfer product.It is also possible, in effect, to invert all directions of rotation.
[0045] This process provides the transfer product in particular, and after application of at least a portion of the transfer layer to the arch substrate, the carrier layer separated from the transfer layer is rewound.
[0046] Furthermore, the winding rollers can accommodate one or more transfer product rollers. Using multiple transfer product rollers is particularly advantageous when only one track of application is required on the sheet substrate. In this case, a transfer product roller can be assigned to a specific track on the sheet substrate where application is to take place. The individual transfer product rollers can be positioned at a distance from their neighbors. Differently designed transfer product rollers, especially those with different colors, elements, or layers, can also be used.In other words, this means that several transfer products are guided along the multifunctional element to the printing gap formed between the printing unit and the multifunctional element for printing on the multiple transfer products, and then further guided to the counter-pressure roller and the pressure roller, which press the multiple transfer products onto the sheet substrate. Here, "multiple" again refers to at least two transfer products.
[0047] It is possible that the multi-application module further includes a clamping system for clamping the transfer product, wherein the clamping system comprises one or more of the following elements, selected individually or in combination: dancer roller, controlled dancer roller, measuring roller, friction shaft. This achieves transport of the transfer product under tension.
[0048] However, it is also possible that the two winding rollers are designed as a friction shaft and / or tension roller.
[0049] Preferably, the multifunctional element includes a first multifunctional roller and / or at least a second multifunctional roller and / or a printing table.
[0050] It is advantageous if the multifunctional element is arranged such that the transfer product can be guided over the multifunctional element. Preferably, the transfer product can be guided by means of the first multifunctional roller and / or the at least one second multifunctional roller, and / or the first multifunctional roller and / or the at least one second multifunctional roller are designed for guiding the transfer product.
[0051] Advantageously, it is provided that the first multifunctional roller in combination with a second multifunctional roller and / or the first multifunctional roller in combination with two second multifunctional rollers and / or two second multifunctional rollers are arranged in such a way that the transfer product can be guided over the first multifunctional roller and / or the at least one second multifunctional roller and thereby forms a flat printing surface, in particular can be guided in such a way that the transfer product forms a flat printing surface.
[0052] It is also possible that the flat printing surface in the transfer product printing position is arranged at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, most preferably substantially perpendicular to the printing unit and / or has a surface area between 250 mm 2 and 1,000,000 mm 2 preferably between 1000 mm 2 and 200000 mm2 trains.
[0053] It is also advantageous that the printing table is arranged in such a way that the transfer product can be guided across the printing table.
[0054] This creates a flat printing surface, which enables an exact and high-quality printing result.
[0055] Preferably, the printing table should have a flat surface, especially between 250 mm. 2 and 1,000,000 mm 2 preferably between 1000 mm 2 and 200000 mm 2, and / or that the printing table is arranged at an angle in the range of 85° to 95°, in particular 86.5° to 93.5°, preferably 89.5° to 90.5°, and most preferably substantially perpendicular to the printing unit. It is also possible that the printing table has a length in the feed direction of the transfer product between 5 mm and 500 mm, in particular between 10 mm and 100 mm, and / or a width transverse to the feed direction of the transfer product between 50 mm and 2000 mm, in particular between 100 mm and 1000 mm.
[0056] Furthermore, it is preferred if the printing table is arranged perpendicular to the printing unit. It is also possible for the printing table or the flat printing surface to be arranged such that the ink output of the printing unit is perpendicular to the printing table or the flat printing surface. It is also advantageous if the distance between the printing unit and the printing table and / or the flat printing surface, in particular the flat printing surface of the transfer product, is between 0.1 mm and 5 mm, preferably between 0.5 mm and 3 mm.
[0057] It is also possible that the printing table has air outlets to create an air cushion, in particular an air cushion between the printing table and the transfer product. This enables a particularly smooth movement of the transfer product across the table, further increasing printing accuracy and quality.
[0058] Advantageously, the surface of the first multifunctional roller and / or at least one second multifunctional roller has a surface structure produced by a surface treatment process. The surface structures can be convex and / or concave in shape and produced by one or more surface treatment processes, selected individually or in combination from: blast cleaning, blasting, turning, over-machining, roughening, grooving, grinding, and creasing.
[0059] It is advantageous if the first multi-functional roller has a diameter between 50 mm and 1000 mm, in particular between 100 mm and 500 mm.
[0060] Furthermore, it is advantageous if at least one second multi-functional roller has a diameter between 10 mm and 200 mm, in particular between 30 mm and 100 mm.
[0061] It may also be provided that the surface of the first
[0062] The first multifunctional roller and / or at least one second multifunctional roller has a surface structure produced by a surface treatment process, and / or the first multifunctional roller and / or at least one second multifunctional roller has an anti-slip coating and / or a traction coating, in particular with a layer thickness between 10 µm and 3 mm, preferably between 100 µm and 250 µm. For example, a plasma coating and / or a rubber coating may serve as the anti-slip coating. The anti-slip coating can be achieved by structuring in the sense of an applied relief and / or by applying an additional material layer, in particular a plasma coating and / or a rubber coating, to achieve improved grip for the transfer product on the first multifunctional roller and / or at least one second multifunctional roller.This ensures, in particular, the safe transport of the transfer product on the first multifunctional roller and / or the at least one second multifunctional roller, thereby preventing, in particular, the slippage of the transported web, especially the transfer product.
[0063] Advantageously, the first multifunctional roller and / or at least one second multifunctional roller is driven by at least a partial wrapping of the transfer product, in particular where a constant drive is achieved or ensured due to the surface roughness or anti-slip coating of the multifunctional roller and the associated grippy surface of the multifunctional roller.
[0064] It is therefore advantageous if the first multifunctional roller and / or at least one second multifunctional roller is at least partially enclosed by the transfer product, especially for stable transport in the printing gap.
[0065] It is further preferred if the first multi-functional roller and / or at least one second multi-functional roller includes an encoder for detecting and / or controlling the rotational speed of the first multi-functional roller and / or at least one second multi-functional roller and / or the printing process. This ensures, in particular, precise synchronization of the rotational speed of the first multi-functional roller and / or at least one second multi-functional roller with the printing unit, thus enabling register-accurate printing.
[0066] Registered or registered, or precisely registered or precisely registered, refers to the positional accuracy of two or more layers relative to each other. The register accuracy should fall within a predefined tolerance and be as low as possible. At the same time, the register accuracy of multiple elements and / or layers relative to each other is an important characteristic for increasing process reliability. Precise positioning can be achieved, in particular, using sensor-based, preferably optically detectable, registration marks. These registration marks can either represent specific separate elements, areas, or layers, or they can themselves be part of the elements, areas, or layers to be positioned. For example, a part of the design or a part of an image can also be used as a registration mark.Alternatively, the corner of the arc can also be used as a registration mark if no other suitable elements, marks, or pictorial elements are available.
[0067] It is also advantageous if the printing unit can print with, or is capable of printing with, a UV-curable ink.
[0068] Preferably, the printing unit is or comprises a UV inkjet printing unit and / or comprises at least one inkjet printhead. Advantageously, the UV inkjet printing unit has a printing width transverse to the feed direction of the sheet substrate and / or the transfer product of between 50 mm and 2000 mm, in particular between 100 mm and 1100 mm.
[0069] It is possible that the UV inkjet printing unit and / or the one or more inkjet printheads have a resolution of 300 to 1200 npi (nozzles per inch). This resolution is measured perpendicular to the feed direction of the transfer product and / or the sheet substrate and is primarily determined by the design. It is also possible that the UV inkjet printing unit and / or the one or more inkjet printheads have a resolution of 300 to 2400 dpi (dots per inch). This resolution is measured in the feed direction of the transfer product and / or the sheet substrate and is primarily electronically controllable or modifiable, preferably to change the amount of ink applied.
[0070] Furthermore, it is possible that the UV inkjet printing unit and / or the one or more inkjet printheads have a maximum printing speed of 300 m / min, preferably a maximum printing speed of 200 m / min.
[0071] It is also advantageous if the printing unit and / or the UV inkjet printing unit has at least two rows of printheads.
[0072] Furthermore, it is advantageous if the printing unit has at least two ink receiving devices for receiving at least two different inks.
[0073] This ensures that the optimal ink is readily available for both printing on the sheet substrate and printing on the transfer product, enabling automatic ink changes when using a single printing unit. Between ink changes, it is advantageous to include a cleaning cycle to remove any residue from the first ink from the ink supply system and printhead before the second ink is introduced. This is particularly important because the sheet substrate and the transfer product typically have different physical properties, such as absorbency or surface texture, allowing the most suitable ink to be used directly without having to refill the printing unit first.
[0074] Preferably, the printing unit is configured by means of a digital program so that it can print along two different directions. It is preferred that the printing unit prints along the direction of the transfer product in the transfer product printing position and / or that the printing unit prints along the direction of the sheet substrate in the sheet substrate printing position, particularly where the direction of the transfer product and the direction of the sheet substrate are opposite to the printing unit. Therefore, it is advantageous if the printing unit can print in two opposite directions.
[0075] In other words, it is advantageous if the printing unit is configured by means of a digital program so that it can print according to both the first variant i) and the second variant ii).
[0076] Alternatively or additionally, the printing unit can be designed to be rotated, particularly mechanically, by 180° about an axis perpendicular to the direction of travel or parallel to the normal of the direction of travel and / or parallel to the normal of the printing surface. Preferably, the printing unit is movable vertically and / or horizontally between the transfer product printing position and the sheet substrate printing position. Two possible designs exist for this.
[0077] In a first embodiment, the multifunctional element is preferably arranged in a fixed position. In this case, the printing unit is preferably movable both vertically and horizontally within the multi-application module. Due to the design, the printing unit can then be moved between the transfer product printing position and the sheet substrate printing position by means of a vertical and a horizontal movement.
[0078] In a second embodiment, the multifunctional element is arranged to be horizontally displaceable. Preferably, the multifunctional element is horizontally displaceable between a first position and a second position. The first position is essentially equivalent to the transfer product position of the printing unit. In this case, the printing unit can print on the transfer product guided on the multifunctional element, provided the printing unit is also in the transfer product printing position. To enable the printing unit to also print on the sheet substrate in the second embodiment, the multifunctional element is moved horizontally from the first position (transfer product printing position) to the second position. This means the multifunctional element is no longer located under the printing unit. The printing unit can then be moved vertically so that it is positioned in the sheet substrate printing position.The printing unit is then located in close proximity to the sheet substrate feeder and can print onto a sheet substrate guided or conveyed there. When switching to the transfer product printing position, the printing unit is preferably first moved vertically from the sheet substrate printing position to the transfer product printing position, and then the multifunction element is moved horizontally from the second position to the first position.
[0079] In particular, the printing unit may be guided in guide tracks, with the guide tracks having their two end positions in the transfer product printing position and the sheet substrate printing position. Alternatively, the multifunctional element may be guided in a vertical guide track, with the end positions of the vertical guide track being the first and second positions.
[0080] It is also conceivable that the printing unit is driven by a motor and can be moved horizontally and / or vertically between the transfer product printing position and the sheet substrate printing position. Alternatively, the printing unit can be moved horizontally and / or vertically between the transfer product printing position and the sheet substrate printing position by means of a robot arm. It is also possible for the printing unit to be moved manually, in particular by hand, between the transfer product printing position and the sheet substrate printing position. The same configurations can also apply to the vertical movement of the multifunctional element.
[0081] Furthermore, it is advantageous for the multi-application module to have at least one UV pre-curing light source for both the transfer product printing position and the sheet substrate printing position. In particular, it is provided that the at least one UV pre-curing light source for the transfer product printing position is arranged downstream of the printing unit in the direction of travel of the transfer product, and that the at least one UV pre-curing light source for the sheet substrate printing position is arranged downstream of the printing unit in the direction of travel of the sheet substrate.Alternatively, it can also be provided that the at least one UV pre-curing light source for the transfer product printing position and the at least one UV pre-curing light source for the sheet substrate printing position are arranged in the printing unit, in particular such that the UV pre-curing light source is located downstream of the ink output and thus downstream of the transport direction or running direction of the transfer product or the sheet substrate. In other words, this means that one UV pre-curing light source is located to the left of the ink output in the printing unit and another UV pre-curing light source is located to the right of the ink output in the printing unit. Depending on whether the printing unit is in the transfer product printing position or in the sheet substrate printing position, either one UV pre-curing light source or the other UV pre-curing light source is active.When printing on the transfer product, the UV pre-curing light source downstream of the ink output in the transfer product printing position (in the direction of the transfer product's travel) is active, while the other UV pre-curing light source is inactive. Similarly, when printing on the sheet substrate, the UV pre-curing light source downstream of the ink output in the sheet substrate printing position (in the direction of the sheet substrate's travel) is active, while the other UV pre-curing light source is inactive.
[0082] Alternatively, it is also possible that the at least one UV pre-curing light source on each side of the printing unit, especially along the two directions of travel, is remountable, in particular pluggable.
[0083] The UV pre-curing light source achieves the fixing, and in particular the pre-fixing, of the print, especially the UV-curable ink, directly after printing on the sheet substrate or the transfer product, particularly since irradiation with UV light can occur in both directions. When printing on the transfer product, this type of fixing offers the advantage that the transfer layer of the transfer product can be transferred to uncoated sheet substrates with high quality.
[0084] In other words, the at least one UV pre-curing light source is arranged downstream along the respective direction of travel to the printing device in relation to the multi-function element or the sheet substrate conveying unit in such a way that the ink can be fixed directly after printing.
[0085] Preferably, the at least one UV pre-curing light source is a UV lamp, in particular one that generates light in the wavelength range between 100 nm and 420 nm, more preferably between 350 nm and 420 nm, and more preferably between 365 nm and 405 nm. The UV lamp can be, for example, a UV-C lamp, a UV-B lamp, or a UV-A lamp. Preferably, the UV-C lamp generates light in the wavelength range between 100 nm and 280 nm. Preferably, the UV-B lamp generates light in the wavelength range between 280 nm and 315 nm. More preferably, the UV-A lamp generates light in the wavelength range between 315 nm and 400 nm. An LED UV lamp can also be used as the UV lamp. Such LED UV lamps have a narrow spectral range or wavelength range centered around a specific wavelength.For example, an LED-UV lamp can generate light in the wavelength range of 365 nm ± 10 nm, 375 nm ± 10 nm, 385 nm ± 10 nm, 395 nm ± 10 nm, or 405 nm ± 10 nm. Preferably, one or more UV lamps can also be combined with one or more LED-UV lamps.
[0086] Preferably, the distance between the UV pre-curing light source and the, in particular printed, sheet substrate or transfer product is between 1 mm and 50 mm, preferably between 3 mm and 20 mm.
[0087] It is also useful if the distance between the UV-
[0088] The distance between the pre-curing light source and the printing unit is between 10 mm and 500 mm, preferably between 30 mm and 100 mm. This allows the UV pre-curing light source to be positioned as close as possible to the printing unit while still providing shielding for the printing unit from UV radiation.
[0089] Preferably, the at least one UV pre-curing light source is designed as an LED UV lamp and has an irradiance between 0 W / cm² 2 up to 10 W / cm 2 , preferably between 1 W / cm² 2 up to 9 W / cm 2 , and / or that the at least one UV pre-curing light source is designed as a UV lamp and generates an irradiance between 0 W / cm² and 100 W / cm², preferably between 20 W / cm² and 60 W / cm². In the case of an LED UV lamp, the irradiance refers to the emitting area of the LED UV lamp in square centimeters (cm²). 2With a UV lamp (UV-A, UV-B, or UV-C), the irradiance refers to the respective length of the UV lamp in centimeters (cm). This ensures sufficient fixation of the print, resulting in high print quality. The precisely selected irradiance depends primarily on the speed of the moving sheet substrate and / or the moving transfer product, depending on the material being printed on, in order to deliver approximately the same amount of energy to the material at different speeds.
[0090] In particular, the cold transfer unit is designed to include a pressure roller and a counter-pressure roller. If a cylinder arrangement is used as the sheet substrate feeder, the counter-pressure roller can also be the pressure cylinder, i.e., the pressure cylinder simultaneously functions as the counter-pressure roller.
[0091] Preferably, the pressure roller is coated with rubber or silicone with a hardness between 25 Shore A and 100 Shore A, preferably between 50 Shore A and 90 Shore A. Furthermore, it is advantageous if the coating has a thickness between 1 mm and 20 mm, particularly between 1 mm and 5 mm.
[0092] Furthermore, it is possible that the counter-pressure roller has a hard chrome coating.
[0093] Advantageously, the surface of the counter-pressure roller is made of a material with an abrasion resistance of 40 Rockwell C to 80 Rockwell C, in particular of 60 Rockwell C to 70 Rockwell C.
[0094] Furthermore, it is advantageous if the pressure roller has a diameter between 10 mm and 500 mm, particularly between 50 mm and 300 mm. It is also advantageous if the counter-pressure roller has a diameter between 50 mm and 700 mm, particularly between 100 mm and 500 mm.
[0095] Preferably, the counter-pressure roller and / or the pressure roller is driven. It can also be advantageous for the pressure roller and / or the counter-pressure roller to be driven, in particular such that the counter-pressure roller rotates clockwise or counterclockwise.
[0096] It is advantageous if the cold transfer unit further comprises at least one UV curing light source, in particular wherein the UV curing light source is arranged downstream of the pressure roller, preferably in the direction of travel of the sheet substrate and in the direction of travel of the transfer product. This ensures a strong bond between the transfer layer and the sheet substrate before the carrier layer is removed from the transfer layer. Advantageously, in the cold transfer unit, particularly in the press gap, the direction of travel of the sheet substrate and the direction of travel of the transfer product are aligned or identical. It is possible for the at least one UV curing light source to be arranged downstream of the pressure roller and / or the counter-pressure roller, particularly in the direction of travel of the sheet substrate and / or the transfer product, between 20 mm and 500 mm, and especially between 50 mm and 200 mm.
[0097] Preferably, the cold transfer unit further comprises a release roller or a release blade, in particular for releasing a carrier layer from a transfer layer of the transfer product.
[0098] It is advantageous if the release roller or release blade, particularly in the conveying direction of the sheet substrate and / or the transfer product, is arranged between 5 cm and 50 cm, particularly between 5 cm and 20 cm downstream in the conveying direction of the substrate and / or the transfer product or after at least one UV curing light source.
[0099] It is also advantageous if the removal roller has a diameter between 5 mm and 100 mm.
[0100] Furthermore, it is possible that the cold transfer unit comprises at least one additional UV curing light source, in particular wherein the additional UV curing light source is arranged downstream of the release roller or release blade, especially in the direction of travel of the sheet substrate and in the direction of travel of the transfer product. That is, the additional UV curing light source is preferably arranged further downstream of the release roller or release blade.
[0101] It is advantageous if at least one further UV curing light source is arranged, particularly in the direction of travel of the sheet substrate, between 5 cm and 50 cm, and especially between 5 cm and 20 cm downstream or after the release roller or release blade.
[0102] Preferably, the at least one UV curing light source and / or the at least one further UV curing light source is a UV lamp, in particular one that generates light in the wavelength range between 100 nm and 420 nm, more preferably between 350 nm and 420 nm, and more preferably between 365 nm and 405 nm. The UV lamp can be, for example, a UV-C lamp, a UV-B lamp, or a UV-A lamp. Preferably, the UV-C lamp generates light in the wavelength range between 100 nm and 280 nm. Preferably, the UV-B lamp generates light in the wavelength range between 280 nm and 315 nm. Preferably, the UV-A lamp generates light in the wavelength range between 315 nm and 400 nm. An LED UV lamp can also be used as the UV lamp. Such LED UV lamps have a narrow spectral range or wavelength range that is centered around a specific wavelength.For example, an LED UV lamp can produce light in the wavelength range of 365 nm ± 10 nm or 375 nm ± 10 nm or 385 nm ± 10 nm or 395 nm ± 10 nm or 405 nm ± 10 nm.
[0103] Preferably, the at least one UV curing light source and / or the at least one further UV curing light source generates an irradiance between 5 W / cm² 2 up to 50 W / cm 2 , preferably between 15 W / cm² 2 up to 25 W / cm 2 The precisely selected irradiance depends in particular on the speed of the moving arc substrate and / or the moving transfer product, in order to be able to introduce approximately the same energy into the material at different speeds.
[0104] It may be possible that the multi-application module includes at least one detection unit which detects the position of at least one element and / or at least one layer on the sheet substrate and / or the transfer product, in particular by means of a registration mark or register mark, wherein the detection unit is connected to a controller which controls the printing unit on the basis of the detected position data of the detection unit in such a way that the printing on the sheet substrate and / or the transfer product takes place in register with the at least one element and / or the at least one layer.
[0105] In the first variant i), it is possible that the sheet substrate comprises at least one element and / or at least one layer onto which the print is positioned as a further layer in register with this at least one element and / or the at least one layer on the sheet substrate. Preferably, the position of the at least one element and / or the at least one layer on the sheet substrate is detected prior to the printing process using an optically detectable registration mark. For example, a part of the motif or a part of an image can also be used as a registration mark. Alternatively, the sheet corner can also be used as a registration mark if no other suitable elements, marks, or image elements are available.By recording the conveying speed of the sheet substrate conveying unit, it is possible to determine when at least one element and / or at least one layer is reached on the sheet substrate or on the pressure unit and when the pressure in the register is positioned on the sheet substrate.
[0106] It is also possible that in the second variant ii), the sheet substrate comprises at least one element and / or at least one layer, with a print applied to the transfer product positioned relative to it. The at least one element and / or the at least one layer on the sheet substrate and the print on the transfer product can overlap completely, partially, or not at all. Preferably, the position of the at least one element and / or the at least one layer on the sheet substrate is detected by an optically detectable registration mark, and the start of the printing process is controlled in such a way that the print on the transfer product is pressed in register to the at least one element and / or the at least one layer on the sheet substrate after transport to the press gap between the counter-pressure roller and the pressure roller.
[0107] Furthermore, it is also possible that the at least one element and / or the at least one layer on the transfer product is pressed in the press gap between the counter-pressure roller and the pressure roller in the register to the at least one element and / or to the at least one layer and / or to the pressure on the sheet substrate. For this purpose, it is advantageous if the position of the at least one element and / or the at least one layer is indicated on both the sheet substrate and the transfer product by an optically detectable registration mark, respectively, assigned to the transfer product and the sheet substrate.The registration mark is recognized and the positioning is achieved via the stretching of the transfer product, so that after the transfer product is transported to the press gap between the counter-pressure roller and the pressure roller, the at least one element or layer on the transfer product is pressed in register onto the at least one element and / or layer on the sheet substrate. This results in a register between the at least one element or layer on the sheet substrate, the print, and the transfer product.
[0108] In particular, it is provided that the cold transfer unit includes at least one detection unit which detects the position of at least one element and / or at least one layer on the sheet substrate and / or the transfer product, in particular by means of a registration mark or register mark, and that the positioning is carried out by stretching the transfer product, so that after the transfer product has been transported to the press gap, the pressure roller presses the at least one element and / or the at least one layer on the transfer product in the register onto the at least one element and / or the at least one layer on the sheet substrate.
[0109] Furthermore, in the second variant ii), it is also possible that the sheet substrate comprises at least one element and / or at least one layer, to which at least one element and / or at least one layer on the transfer product is pressed in the press gap between the counter-pressure roller and the pressure roller in the register onto the at least one element or the at least one layer on the sheet substrate. For this purpose, it is advantageous if the pressure in the register is positioned relative to the at least one element and / or the at least one layer on the transfer product. Preferably, the position of the at least one element and / or the at least one layer on both the sheet substrate and the transfer product is detected by means of an optically detectable registration mark or register mark on the transfer product and on the sheet substrate, respectively, and is positioned by means of the stretching of the transfer product.The at least one element and / or the at least one layer on the sheet substrate and the transfer product can overlap completely, partially, or not at all. This results in a register between the at least one element or the at least one layer on the sheet substrate, the print, and the transfer product.
[0110] For precise positioning of the sheet substrate and the transfer product relative to each other, it is preferably provided that the at least one detection unit of the multi-application module and the at least one detection unit of the cold transfer unit are connected to a common control unit, which controls the rotational speed of the rollers and / or the conveying speed of the sheet substrate conveying unit and / or the printing unit based on the detected register marks or position marks in such a way that the at least one element and / or the at least one layer on the sheet substrate is arranged in register with the print on the transfer product.
[0111] In particular, it is advantageous if, for the stretching of the transfer product in the first variant i) and / or second variant ii), the tensioning system is used after the film unfolding to position at least one element and / or at least one layer on the transfer product in the register to the at least one element and / or at least one layer on the sheet substrate.
[0112] It is also possible that the multi-application device includes a transfer product transport system with a clamping system for controlled material transport, wherein the transfer product transport system controls the register-accurate positioning in the press gap of the at least one element and / or the at least one layer on the transfer product and the at least one element and / or the at least one layer on the sheet substrate by means of the tensioning system and the stretching of the transfer product. Preferably, the transfer product transport system comprises at least one driven roller that influences the transport speed of the transfer product and a detection unit, in particular an optical sensor, for detecting the position of the at least one element and / or the at least one layer on the transfer product by means of an optically detectable registration mark or register mark applied to the transfer product.Such a driven roller can have one or more of the following elements, selected individually or in combination from: roller with opposing press roller, roller with at least one or more segmented press roller, vacuum roller.
[0113] It can also preferably be provided that the multi-application device has a transfer product transport system for controlled material transport, wherein the transfer product transport system controls the register-accurate positioning in the press gap of the at least one element and / or the at least one layer on the transfer product and the at least one element and / or the at least one layer on the sheet substrate by means of the stretching of the transfer product by means of a driven vacuum roller, in particular wherein the transfer product is arranged with its unprinted side on the vacuum roller, so that the transfer product undergoes stretching without contact with the already printed side of the transfer product.
[0114] Alternatively, the stretching of the transfer product can also be enabled via at least one drive on the multifunctional roller, whereby the stretching of the transfer product in the area between the multifunctional roller and the press gap can be influenced by the speed of the transfer product transport on the multifunctional roller relative to the speed of the sheet substrate transport in the press gap between the counter-pressure roller and the pressure roller, and thus the positioning of the at least one element and / or the at least one layer on the transfer product in the register to the at least one element and / or the at least one layer on the sheet substrate is controlled.
[0115] It is also possible that the transfer product transport system includes at least one driven roller influencing the transport speed of the transfer product and a detection unit, in particular an optical sensor, for detecting the position of the at least one element and / or the at least one layer on the transfer product by means of an optically detectable registration mark or register mark applied to the transfer product.
[0116] It is preferred if the multi-application module further comprises one or more deflection rollers and / or one or more guide rollers. It is also advantageous if both variants i) and ii) are selectable or implementable in the same multi-application device or are implemented by the same multi-application device.
[0117] Thus, it is possible that, using the multi-application module, the transfer product can be printed in the printing gap of the transfer product printing position and / or the sheet substrate can be printed in the printing gap of the sheet substrate printing position.
[0118] In other words, it is advantageous that the printing of the sheet substrate or the transfer product takes place in the same multi-application module, in particular wherein either the transfer product is printed in the transfer product printing position or the sheet substrate is printed in the sheet substrate printing position, preferably wherein the directions and / or paths of the sheet substrate and / or the transfer product differ or are opposite.
[0119] It is also advantageous if the printing of the sheet substrate or the transfer product takes place in the same multi-application module, whereby the direction of travel of the sheet substrate and the direction of travel of the transfer product or transport directions, in particular with respect to the printing unit, differ, preferably being opposite.
[0120] It is also preferred that the pressing of the transfer product onto the sheet substrate is carried out with the same counter-pressure roller and the same pressure roller.
[0121] The following describes, among other things, further preferred embodiments of the multi-application device: Advantageously, the sheet substrate conveying unit comprises a feed unit, particularly in the form of a magazine or stack of sheet substrates, and / or a discharge unit, particularly in the form of a magazine or stack for receiving the decorated sheet substrates. Preferably, the sheet substrates are stacked on top of each other in the magazine of the feed unit. A suitable gripping mechanism preferably removes one sheet substrate at a time from the magazine and transports it on the conveyor belt or cylinder assembly. Several sheet substrates can be transported or conveyed simultaneously on the conveyor belt or cylinder assembly, with each sheet substrate being processed at a different station, for example, a printing unit, a cold transfer unit, etc.
[0122] In particular, it is provided that the conveyor belt is designed in such a way that one or more sheet substrates can be guided on the conveyor belt.
[0123] It is also advantageous if the conveyor belt forms a flat printing surface in the position of the sheet substrate. This flat printing surface enables a precise and high-quality printing result on the sheet substrate.
[0124] It may also be possible that the flat pressure surface of the conveyor belt is arranged at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, most preferably substantially perpendicular to the pressure unit of the multi-application module.
[0125] In particular, it is stipulated that the flat pressure surface of the conveyor belt must have an area of at least 250 mm. 2 , preferably of at least 1000 mm 2The cylinder arrangement may include at least one printing cylinder and / or at least one transport cylinder. The printing cylinder is preferably the cylinder on which the sheet substrate is arranged in the sheet substrate printing position. It is preferred that the printing cylinder has a diameter large enough to form a printing surface with a radius of curvature in the range of 150 mm to 1300 mm, preferably 150 mm to 600 mm, when in the sheet substrate printing position, and / or that the printing cylinder has a radius in the range of 150 mm to 1300 mm, preferably 150 mm to 600 mm.
[0126] It is also advantageous if the printing surface of the printing cylinder is arranged at an angle in the range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, and most preferably essentially perpendicular to the printing unit of the multi-application module. This ensures precise and high-quality printing on the sheet substrate.
[0127] It is also possible that the sheet substrate conveying unit includes a counter-pressure roller as part of the cold transfer unit of the multi-application module. For example, the counter-pressure roller may already be an integral part of the sheet substrate conveying unit. Alternatively, it is also conceivable that the counter-pressure roller is provided as part of the multi-application module and must be installed in the sheet substrate conveying unit. In the case of a cylinder arrangement, a corresponding cylinder can be provided that functions as a counter-pressure roller. Preferably, the printing cylinder also functions as a counter-pressure roller. This means that the printing cylinder can perform two tasks in the sheet substrate printing position: printing on the sheet substrate and, after printing, acting as a counter-pressure roller, thus ensuring that the transfer layer of the transfer product is applied to the sheet substrate.In the transfer product printing position, however, the printing cylinder only acts as a counter-pressure roller, i.e., it only ensures that the transfer layer of the transfer product is applied to the sheet substrate.
[0128] It is further advantageous if an adapter is arranged between the multi-application module and the sheet substrate conveying unit, which in particular enables a mechanically stable attachment of the multi-application module to the sheet substrate conveying unit.
[0129] It is also preferred if the cold transfer unit or the multi-application device further comprises one or more deflection rollers and / or one or more guide rollers.
[0130] The following describes, among other things, further preferred embodiments of the (working) method for a multi-application device:
[0131] Furthermore, it is advantageous if the (working) procedure for the multi-application device includes the following step:
[0132] - Printing the sheet substrate in the sheet substrate printing position or printing the transfer product in the transfer product printing position using a printing unit, in particular using the same printing unit.
[0133] Preferably, the multifunctional element includes a first multifunctional roller and / or at least a second multifunctional roller and / or a printing table.
[0134] Preferably, the transfer product is printed on the side of the transfer product facing away from the surface of the first multi-functional roller and / or the at least one second multi-functional roller and / or the printing table. Furthermore, it is possible that the transfer product is pressed onto the sheet substrate using the same counter-pressure roller and the same pressure roller.
[0135] The features, effects, and advantages described in connection with the multi-application module can also be applied analogously to the multi-application device, the (working) method for a multi-application device, the use of a multi-application module, the printing system, and the system itself, and are therefore considered to be disclosed. The same applies in the reverse direction: features, effects, and advantages described in connection with the multi-application device, the (working) method for a multi-application device, the use of a multi-application module, the printing system, and the system itself are also transferable to the multi-application module and are considered to be disclosed.
[0136] In the following, exemplary embodiments of the invention are explained with the aid of the enclosed figures, which are not to scale.
[0137] Fig. 1a schematically shows a sectional view of a multi-application module, in particular a printing system, wherein the printing unit is located in the transfer product printing position;
[0138] Fig. 1b schematically shows a sectional view of a multi-application module, in particular a printing system, wherein the printing unit is located in the sheet substrate printing position;
[0139] Fig. 2 schematically shows a sectional view of a
[0140] Multi-application device, in particular a system; Fig. 3a schematically shows a sectional view of a multi-application device, in particular a system, wherein the printing unit is located in the transfer product printing position;
[0141] Fig. 3b schematically shows a sectional view of a multi-application device, in particular a system, wherein the printing unit is located in the sheet substrate printing position;
[0142] Fig. 4a schematically shows a sectional view of a multi-application module, in particular a printing system, wherein the printing unit is located in the transfer product printing position;
[0143] Fig. 4b schematically shows a sectional view of a multi-application module, in particular a printing system, wherein the printing unit is located in the sheet substrate printing position;
[0144] Figures 5a to 5f each show a schematic sectional view of a multifunctional element of the multi-application module.
[0145] The figures illustrate different embodiments of the invention. Identical or similarly functioning components are designated with the same reference symbols. Where the embodiments shown in the figures have similarities, these similarities are not described repeatedly to avoid repetition. The respective differences between the embodiments are described in relation to the figures. It is understood that, within the scope of protection of the claims, a person skilled in the art may modify individual embodiments or combine individual features of these embodiments.
[0146] Fig. 1a schematically shows a sectional view of a multi-application module 1, in particular a printing system 3, wherein the printing unit 8 is located in the transfer product printing position 25a.
[0147] As shown in Fig. 1a, the multi-application module 1 comprises a printing unit 8, a multi-functional element 9, and a cold transfer unit 5. The printing unit 8 is located in the transfer product printing position 25a, i.e., the printing unit 8 is spatially arranged directly above the multi-functional element 9. A printing gap 10 is formed between the multi-functional element 9 and the printing unit 8.
[0148] In order to enable the printing of both a sheet substrate 6 or a transfer product 7 using the multi-application module 1, the printing unit 8 can be moved between a transfer product printing position 25a and a sheet substrate printing position 25b such that the printing unit 8 either prints the transfer product 7 in the transfer product printing position 25a or prints the sheet substrate 6 in the sheet substrate printing position 25b.
[0149] The multi-application module 1 shown in Fig. 1a, in particular the printing system 3, for printing on a sheet substrate 6 or a transfer product 7, can therefore print at two different printing positions with one and the same printing unit 8. Preferably, the direction of travel of the transfer product 11a at the transfer product printing position 25a is opposite to the direction of travel of the sheet substrate 11b at the sheet substrate printing position 25b. Thus, the printing unit 8 can print in two directions 11a and 11b.
[0150] Thus, depending on the position of the printing unit 8, either the sheet substrate 6 or the transfer product 7 is printed.
[0151] According to Fig. 1a, the multifunctional element 9 has a first multifunctional roller 91 and a printing table 13 arranged above it, over which the transfer product 7 is guided.
[0152] Preferably, the printing table 13 forms a flat surface, in particular between 250 mm2 and 1,000,000 mm 2 preferably between 1000 mm 2 and 200000 mm 2Furthermore, it is preferred if the printing table 13 is arranged at an angle in a range of 85° to 95°, in particular 86.5° to 93.5°, preferably 89.5° to 90.5°, and most preferably substantially perpendicular to the printing unit 8. It is also possible that ink is ejected from the printing unit 8 at an angle in a range of 85° to 95°, in particular 86.5° to 93.5°, preferably 89.5° to 90.5°, and most preferably substantially perpendicular, i.e., vertically, relative to the flat surface of the printing table 13. It is also possible that the printing table 13 has a length in the feed direction of the transfer product 7 between 5 mm and 500 mm, in particular between 10 mm and 100 mm, and / or a width transverse to the feed direction of the transfer product 7 between 50 mm and 2000 mm, in particular between 100 mm and 1000 mm.It is also advantageous if the distance between the printing unit 8 and the flat printing surface of the transfer product 7, which is guided over the printing table 13, is between 0.1 mm and 5 mm, preferably between 0.5 mm and 3 mm. It is also possible for the printing table 13 to have air outlets for generating an air cushion, in particular an air cushion between the printing table 13 and the transfer product 7.
[0153] As shown in Fig. 1a, the pressure gap 10 is preferably arranged between the pressure table 13 and the pressure unit 8.
[0154] The first multifunctional roller 91 shown in Fig. 1a, for example, has a diameter between 50 mm and 1000 mm, in particular between 100 mm and 500 mm.
[0155] The surface of the first multifunctional roller 91 and / or the at least one second multifunctional roller 92 can have a surface structure produced by a surface treatment process or be coated with an anti-slip coating, in particular to make the surface grippy so that the first multifunctional roller 91 and / or the at least one second multifunctional roller 92 can be driven by the transfer product 7. The thickness of the anti-slip coating is preferably between 10 µm and 3 mm, more preferably between 100 µm and 250 µm. A plasma coating and / or a rubber coating can serve as the anti-slip coating, for example.
[0156] It is preferred that the first multifunctional roller 91 further comprises an encoder for detecting and / or controlling the rotational speed of the first multifunctional roller 91 and / or for controlling the printing process. This ensures, in particular, precise synchronization of the rotational speed of the first multifunctional roller 91 with the printing speed of the printing unit 8, thus enabling register-accurate printing. The printing unit 8 shown in Fig. 1a is preferably a UV inkjet printing unit.
[0157] Advantageously, the UV inkjet printing unit has a printing width transverse to the feed direction of the sheet substrate 6 and / or the transfer product 7 between 50 mm and 2000 mm, preferably between 100 mm and 1100 mm.
[0158] It is also possible that print unit 8 is or includes an inkjet printhead.
[0159] The UV inkjet printing unit and / or the inkjet printhead may have a resolution of 300 to 1200 npi (nozzles per inch). It is also possible that the UV inkjet printing unit and / or the inkjet printhead may have a resolution of 300 to 2400 dpi (dots per inch).
[0160] Furthermore, it is possible that the UV inkjet printing unit and / or the inkjet printhead has a maximum printing speed of 300 m / min, preferably a maximum printing speed of 200 m / min.
[0161] It is also advantageous if the printing unit 8 and / or the UV inkjet printing unit has at least two printhead rows. Furthermore, it is advantageous if the printing unit 8 has at least two ink pickup devices for holding at least two different inks.
[0162] Preferably, the printing unit 8 is configured by means of a digital program such that it can print along the two grain directions 11a, 11b. This enables the printing unit 8 to print the transfer product 7 in the grain direction of the transfer product 11a in the transfer product printing position 25a and to print the sheet substrate 6 in the grain direction of the sheet substrate 11b in the sheet substrate printing position 25b, wherein the grain direction of the sheet substrate 11b is opposite to the grain direction of the transfer product 11a with respect to the printing unit 8.
[0163] As indicated by the L-shaped arrow in Fig. 1a, the printing unit 8 is vertically and / or horizontally movable between the transfer product printing position 25a and the sheet substrate printing position 25b. In the embodiment according to Fig. 1a, the multifunction element 9 is fixed, i.e., its position is unchangeable. However, in order for the printing unit 8 to be moved to the sheet substrate printing position 25b, it must be movable so that it can travel around the multifunction element 9.When the printing unit 8 is moved from the transfer product printing position 25a to the sheet substrate printing position 25b, it is first moved horizontally, specifically so that it is positioned laterally to the side of the multifunctional element 9. It is then moved vertically downwards into the sheet substrate printing position 25b by a vertical movement towards a sheet substrate conveying unit 26 within the application module. However, the travel path of the printing unit 8 does not necessarily have to be L-shaped as described above. Alternatively, the printing unit 8 can also be moved along a curved track or a track of any shape between the transfer product printing position 25a and the sheet substrate printing position 25b.
[0164] As shown in Fig. 1a, the multi-application module 1 can further comprise one or more deflection rollers 15 and / or one or more guide rollers 15. The multi-application module 1 shown in Fig. 1a, for example, has the deflection roller 15, which serves to deflect a transfer product. As can also be seen in Fig. 1a, the multi-application module 1 preferably further comprises two winding rollers 12a and 12b for receiving the transfer product 7.
[0165] It is possible for the two winding rollers 12a and 12b to rotate in the same or opposite directions. For example, it is possible for the first 12b of the two winding rollers 12a and 12b to rotate clockwise and / or the second 12a of the two winding rollers 12a and 12b to rotate counterclockwise. It is also possible for the first winding roller 12a and the second winding roller 12b of the two winding rollers 12a and 12b to rotate either clockwise or counterclockwise. Furthermore, it is possible, for example, for the first 12b of the two winding rollers 12a and 12b to rotate clockwise and / or the second 12a of the two winding rollers 12a and 12b to rotate counterclockwise.
[0166] Furthermore, the multi-application module 1 according to Fig. 1a further comprises a clamping system 16 for clamping the transfer product 7, wherein the clamping system 16 comprises one or more of the following elements, selected individually or in combination from: dancer roller, controlled dancer roller, measuring roller, friction shaft.
[0167] As shown in Fig. 1a, the multi-application module 1 has at least one UV pre-curing light source 14a, 14b for each of the transfer product printing position 25a and the sheet substrate printing position 25b. In particular, the at least one UV pre-curing light source for the transfer product printing position 14a is arranged downstream of the printing unit 8 in the direction of travel of the transfer product 11a. Furthermore, the at least one UV pre-curing light source for the sheet substrate printing position 25b is arranged downstream of the printing unit 8 in the direction of travel of the sheet substrate 11b. In Fig. 1a, two UV pre-curing light sources are shown for each of the transfer product printing position 25a and the sheet substrate printing position 25b. These two UV pre-curing light sources 14a, 14b per printing position are preferably alternative embodiments.For example, it can be provided that the at least one UV pre-curing light source for the transfer product printing position 25a and the at least one UV pre-curing light source for the sheet substrate printing position 25b are arranged in the printing unit 8, in particular such that the UV pre-curing light source 14a, 14b is arranged downstream of the ink output. That is, the printing unit 8 has two UV pre-curing light sources 14a, 14b, which are movable or shiftable with the printing unit 8. If the printing unit 8 is at the transfer product printing position 25a, the UV pre-curing light source for the transfer product printing position 25a is active and the UV pre-curing light source for the sheet substrate printing position 25b is not active.In the reverse case, i.e., when the printing unit 8 is in the sheet substrate printing position 25b, the UV pre-curing light source for the transfer product printing position 25a is not active and the UV pre-curing light source for the sheet substrate printing position 25b is active.
[0168] Alternatively, as also shown in Fig. 1a, the UV pre-curing light source for the transfer product printing position 25a and the UV pre-curing light source for the sheet substrate printing position 25b can also be arranged as separate modules in the multi-application module 1. In this case, the UV pre-curing light sources 14a, 14b are not part of the printing unit 8 and therefore cannot be moved or moved with the printing unit 8. Instead, the two UV pre-curing light sources for the transfer product printing position 25a and the UV pre-curing light source for the sheet substrate printing position 25b are arranged in a fixed position, specifically so that they are located directly or immediately after the ink ejection at the respective printing position. However, it is also possible that two UV pre-curing light sources 14a, 14b are provided for each printing position.This includes, firstly, the UV pre-curing light source 14a, 14b, which is located directly on the printing unit 8, and the stationary UV pre-curing light source 14a, 14b.
[0169] The UV pre-curing light source 14a, 14b enables the fixing of the print, especially the UV-curable ink, directly after printing on the sheet substrate 6 or the transfer product 7, particularly since irradiation with UV light can take place in both directions 11a, 11b.
[0170] Preferably, the at least one UV pre-curing light source 14a, 14b is a UV lamp, in particular one that generates light in the wavelength range between 100 nm and 420 nm, more preferably between 350 nm and 420 nm, and more preferably between 365 nm and 405 nm. The UV lamp can be, for example, a UV-C lamp, a UV-B lamp, or a UV-A lamp. Preferably, the UV-C lamp generates light in the wavelength range between 100 nm and 280 nm. Preferably, the UV-B lamp generates light in the wavelength range between 280 nm and 315 nm. More preferably, the UV-A lamp generates light in the wavelength range between 315 nm and 400 nm. An LED UV lamp can also be used as the UV lamp. Such LED UV lamps have a narrow spectral range or wavelength range centered around a specific wavelength.For example, an LED UV lamp can produce light in the wavelength range of 365 nm ± 10 nm or 375 nm ± 10 nm or 385 nm ± 10 nm or 395 nm ± 10 nm or 405 nm ± 10 nm.
[0171] Preferably, the distance between the UV pre-curing light source 14a, 14b and the, in particular printed, sheet substrate 6 or transfer product 7 is between 1 mm and 50 mm, preferably between 3 mm and 20 mm. It is also advantageous if the distance between the UV pre-curing light source 14a, 14b and the printing unit 8 is between 10 mm and 500 mm, preferably between 30 mm and 100 mm.
[0172] Preferably, the at least one UV pre-curing light source 14a, 14b is designed as an LED UV lamp and has an irradiance between 0 W / cm² 2 up to 10 W / cm 2 , preferably between 1 W / cm² 2 up to 9 W / cm 2, generated and / or that the at least one UV pre-curing light source is designed as a UV lamp and generates an irradiance between 0 W / cm and 100 W / cm, preferably between 20 W / cm and 60 W / cm.
[0173] For an LED UV lamp, the irradiance refers to the emission area of the LED UV lamp in square centimeters (cm²). 2 ). In the case of a UV lamp (UV-A, UV-B or UV-C), the irradiance refers to the respective length of the UV lamp in centimeters (cm).
[0174] Furthermore, the multi-application module 1, in particular the printing system 3, according to Fig. 1a, also includes a cold transfer unit 5. The cold transfer unit 5 comprises a pressure roller 17 and a counter-pressure roller 18.
[0175] Preferably, the counter-pressure roller 18 and / or the pressure roller 17 is driven. The counter-pressure roller 18 can rotate clockwise or counterclockwise.
[0176] The pressure roller 17 can, for example, have a diameter between 10 mm and 500 mm, in particular between 50 mm and 300 mm.
[0177] Preferably, the pressure roller 17 is coated with rubber or silicone with a hardness between 25 Shore A and 100 Shore A, preferably between 50 Shore A and 90 Shore A. Furthermore, it is advantageous for the coating to have a thickness between 1 mm and 20 mm, particularly between 1 mm and 5 mm. The surface of the counter-pressure roller 18 is preferably made of a material with an abrasion resistance of 40 Rockwell C to 80 Rockwell C, particularly between 60 Rockwell C and 70 Rockwell C, and can have a diameter between 50 mm and 700 mm, particularly between 100 mm and 500 mm. It is also possible for the counter-pressure roller 18 to be hard chrome coated.
[0178] As shown in Fig. 1a, the cold transfer unit 5 may further comprise a UV curing light source 19a, preferably wherein the UV curing light source 19a is arranged downstream of the pressure roller 17 and / or the counter-pressure roller 18, particularly in the direction of travel of the sheet substrate 11b and / or the transfer product 11a. The UV curing light source 19a may be arranged downstream of the pressure roller 17 and / or the counter-pressure roller 18, particularly in the conveying direction of the sheet substrate 6 and / or the transfer product 7, between 20 mm and 500 mm, and particularly between 50 mm and 200 mm. Preferably, the two directions of travel 11a, 11b of the transfer product and the sheet substrate in the cold transfer unit 5 are aligned or identical.
[0179] Preferably, the cold transfer unit 5, as also shown in Fig. 1a, further comprises a release roller 20, in particular for releasing a carrier layer from a transfer layer of the transfer product 7. It is advantageous if the release roller 20 is arranged downstream of the conveying direction of the sheet substrate 6 and / or the transfer product 7, between 5 cm and 50 cm, and in particular between 5 cm and 20 cm, or after the UV curing light source 19a. It is also advantageous if the release roller 20 has a diameter between 5 mm and 100 mm, over which the carrier layer can be peeled off. Alternatively, a release blade can also be used to release a carrier layer from a transfer layer of the transfer product 7.
[0180] Preferably, the UV curing light source 19a is a UV lamp, in particular one that generates light in the wavelength range between 100 nm and 420 nm, more preferably between 350 nm and 420 nm, and more preferably between 365 nm and 405 nm. The UV lamp can be, for example, a UV-C lamp, a UV-B lamp, or a UV-A lamp. Preferably, the UV-C lamp generates light in the wavelength range between 100 nm and 280 nm. Preferably, the UV-B lamp generates light in the wavelength range between 280 nm and 315 nm. More preferably, the UV-A lamp generates light in the wavelength range between 315 nm and 400 nm. An LED UV lamp can also be used as the UV lamp. Such LED UV lamps have a narrow spectral range or wavelength range centered around a specific wavelength.For example, an LED-UV lamp can generate light in the wavelength range of 365 nm ± 10 nm, 375 nm ± 10 nm, 385 nm ± 10 nm, 395 nm ± 10 nm, or 405 nm ± 10 nm. Preferably, one or more UV lamps can also be combined with one or more LED-UV lamps.
[0181] Preferably, the UV curing light source 19a generates an irradiance between 5 W / cm² 2 up to 50 W / cm 2 , preferably between 15 W / cm² 2 up to 25 W / cm 2 .
[0182] Furthermore, as can also be seen in Fig. 1a, the cold transfer unit 5 can also have one or more deflection or guide rollers 15.
[0183] Furthermore, the cold transfer unit 5, as shown in Fig. 1a, can comprise at least one further UV curing light source 19b, preferably wherein the further UV curing light source 19b is arranged, more preferably in the direction of travel of the sheet substrate 11b and in the direction of travel of the transfer product 11a, after the release roller 20 or the release blade.
[0184] In the multi-application module 1 according to Fig. 1a, printing is carried out on the transfer product 7 using a UV-curable ink, which serves in particular as an adhesive. The printing can be done across the entire surface or only in certain areas. Preferably, the printing is done in the form of a pattern or motif.
[0185] In this context, area or sub-area or area-wise refers to a defined surface of a layer or layer which, when viewed perpendicular to a plane spanned by the arc substrate 6 or transfer product 7.
[0186] The transfer product 7 is then fed into a press gap formed by the pressure roller 17 and the counter-pressure roller 18, by bringing the transfer product 7 together with the sheet substrate 6. The print from the UV-curable ink is then cured through the transfer product 7 by the UV curing light source 19a, so that the transfer product 7 bonds to the sheet substrate 6 in the printed areas through curing. The transfer product 7 is then peeled back from the sheet substrate 6, leaving only the transfer layer of the transfer product 7 in the previously printed areas. This separation is achieved by the release roller 20. The sheet substrate 6 is then guided out of the cold transfer unit 5 via a deflection roller 15.
[0187] In Fig. 1a, the path of the transfer product 7 leads from the winding roller 12a to a clamping system 16, via deflection rollers 15 to the multifunctional element 9, and via another deflection roller 15 to the press gap formed by the pressure roller 17 and the counter-pressure roller 18. Here, as described above, the transfer product 7 is brought together with the sheet substrate 6, and the transfer layer of the transfer product 7 is at least partially transferred to the sheet substrate 6. After the separation of the sheet substrate 6 and the transfer product 7 at the release roller 20, as also described above, the transfer product 7 is fed via a deflection roller 15 to the winding roller 12b, onto which the transfer product 7 is rewound.
[0188] In Fig. 1b, the multi-application module 1, in particular the printing system 3, is shown according to Fig. 1a, with the difference that the printing unit 8 is now located in the sheet substrate printing position 25b. That is, the printing unit 8 has been moved or shifted from the transfer product printing position 25a to the sheet substrate printing position 25b compared to the arrangement shown in Fig. 1a.
[0189] According to Fig. 1b, a pressure gap 10 is formed between the pressure unit 8 and the surface of the sheet substrate.
[0190] As shown in Fig. 1b, the printing unit 8 is arranged such that in the sheet substrate printing position 25b, ink is ejected from the printing unit 8 at an angle in a range of 85° to 95°, in particular 86.5° to 93.5°, preferably 89.5° to 90.5°, and most preferably substantially perpendicular to the surface of the sheet substrate.
[0191] As shown in Fig. 1b, the direction of travel of the sheet substrate 11b in the sheet substrate printing position 25b, relative to the printing unit 8, is opposite to the direction of travel of the transfer product 11a in the transfer product printing position 25a. The printing unit 8 is therefore preferably configured such that it can print in two different directions 11a and 11b. Preferably, the printing unit 8 is configured by means of a digital program so that it can print along both directions 11a and 11b. In other words, it is advantageous if the printing unit 8 is configured by means of a digital program such that it can print according to both the variant shown in Fig. 1a and the variant shown in Fig. 1b.
[0192] Since printing is now taking place on the sheet substrate 6 according to Fig. 1b, the UV pre-curing light sources for the transfer product 14a are not active, whereas the UV pre-curing light sources for the sheet substrate 14b are active. Both UV pre-curing light sources for the sheet substrate 14b can be active, or only one of them.
[0193] As shown in Fig. 1b, the sheet substrate 6 is conveyed to the sheet substrate printing position, preferably along a sheet substrate conveying unit 26, and printed there by the printing unit 8. The printing on the sheet substrate 6 is carried out using a UV-curable ink, which serves in particular as an adhesive. This printing can also be applied across the entire surface or only to specific areas. Preferably, the printing is also carried out in the form of a pattern or motif.
[0194] The sheet substrate 6 is then fed into a press gap formed by pressure roller 17 and counter-pressure roller 18 by combining the transfer product 7 with the sheet substrate 6.
[0195] The connection between transfer product 7 and sheet substrate 6 is analogous to the variant already described in Fig. 1a, so reference is made to the above explanations. The further paths of the sheet substrate 6 and the transfer product 7 also correspond to those already described in connection with Fig. 1a, so reference is made to the above explanations in this respect as well. If printing is only done on the sheet substrate 6, the transfer product can also be guided past the multifunctional element 9 and directly into the cold transfer unit 5. Fig. 2 now schematically shows a multi-application device 2, in particular a system 4, comprising a multi-application module 1 according to Figs. 1a and 1b and a sheet substrate conveying unit 26 for conveying one or more sheet substrates. The sheet substrate conveying unit 26 shown in Fig. 2 is a conveyor belt 27.
[0196] Preferably, the conveyor belt 27 is designed such that one or more sheet substrates can be guided on the conveyor belt 27.
[0197] Furthermore, it is preferably provided that the conveyor belt 27 forms a flat pressure surface in the position of the sheet substrate pressure position 25b.
[0198] In particular, it is possible that the flat pressure surface of the conveyor belt is arranged at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, most preferably substantially perpendicular to the pressure unit 8 of the multi-application module 1.
[0199] The sheet substrate conveying unit 26 can have a feed unit not shown in Fig. 2, in particular in the form of a magazine or stack of sheet substrates and / or a discharge unit not shown, in particular in the form of a magazine or stack for receiving the decorated sheet substrates.
[0200] The system 4 or the multi-application device 2 shown in Fig. 2 serves to apply a transfer layer of a transfer product 7 onto a sheet substrate 6, wherein the multi-application module 1 contained in the system 4 or in the multi-application device 2 serves to print the sheet substrate 6 or the transfer product 7, in particular with a UV-curable ink.
[0201] Furthermore, it may be provided that an adapter is arranged between the multi-application module 1 and the bow substrate conveying unit 26, which in particular provides a mechanically stable fastening of the
[0202] Multi-application module 1 to the bow substrate conveying unit 26 is enabled.
[0203] Fig. 2 further shows a (working) method for a multi-application device 2, wherein according to a first variant i) a printing unit 8 is brought into sheet substrate printing position 25b and a sheet substrate 6 is brought along a sheet substrate conveying unit 26 to the sheet substrate printing position 25b in order to print the sheet substrate 6 and further the printed sheet substrate 6 is guided to a cold transfer unit 5, with which a transfer product 7 is pressed onto the sheet substrate 6, or that according to a second variant ii) the printing unit 8 is brought into transfer product printing position 25a and the transfer product 7 is brought along the multifunctional element 9 to the transfer product printing position 25a in order to print the transfer product 7 and further the printed transfer product 7 is guided to the cold transfer unit 5, with which the transfer product 7 is pressed onto the sheet substrate 6.
[0204] As shown in Fig. 2, it is therefore possible that both variants i) and ii) are selectable and / or executable in the same multi-application device 2 or are executed by the same multi-application device 2, in particular where this is made possible by the multi-application module 1, which comprises a printing unit 8 that is movable between a transfer product printing position 25a and a sheet substrate printing position 25b.
[0205] Figure 3a schematically shows another multi-application device 2, in particular another system 4, comprising a multi-application module 1 and a sheet substrate conveying unit 26 for conveying one or more sheet substrates. Essentially, the multi-application device 2 according to Figure 3 is similar to the
[0206] Multi-application device 2 according to Fig. 2. The difference, however, is that a cylinder arrangement 28 is now used as the arc substrate conveying unit 26.
[0207] According to Fig. 3a, the cylinder arrangement 28 includes a pressure cylinder 29. The pressure cylinder 29 also serves as the counter-pressure roller 18, which is part of the cold transfer unit 5 and, in combination with the pressure roller 17, serves to press the transfer product onto the sheet substrate 6. Furthermore, the cylinder arrangement 28 according to Fig. 3a also includes one or more transport cylinders 31.
[0208] The cylinder arrangement 28 is preferably designed such that one or more sheet substrates 6 can be guided on the cylinder arrangement 28. According to Fig. 3a, the direction of rotation of the printing cylinder 29 or the counter-pressure roller 18 is indicated by a corresponding arrow. Furthermore, it is preferably provided that the direction of rotation of the printing cylinder 29 or the counter-pressure roller 18 is opposite to the direction of rotation of the multifunctional element 9, in particular the first multifunctional roller 91 and / or the second multifunctional roller 92. This ensures that the direction of travel of the transfer product 11a in the transfer product printing position 25a is opposite to the direction of travel of the sheet substrate 11b in the sheet substrate printing position 25b.Thus, in the embodiment according to Figures 3a and 3b, the printing unit 8 prints in a different direction in the transfer product printing position 25a than in the sheet substrate printing position 25b, in particular, the two directions of travel 11a, 11b are opposite.
[0209] As shown in Fig. 3a, the printing unit 8 is located in the transfer product printing position 25a. The descriptions of the printing unit 8 in Fig. 1a apply analogously to Fig. 3a. In Fig. 3b, the printing unit 8 has been moved from the transfer product printing position 25a to the sheet substrate printing position 25b compared to Fig. 3a. That is, the printing unit 8 is now located in the sheet substrate printing position 25b. Opposite the printing unit 8 is the printing cylinder 29 or the counter-pressure roller 18. In the sheet substrate printing position 25b, the printing gap 10 is formed between the printing cylinder 29 or the counter-pressure roller 18 and the printing unit 8. Furthermore, a sheet substrate 6 to be printed is guided on the printing cylinder 29 or the counter-pressure roller 18. This ensures a correspondingly precise and high-quality print on the printing cylinder 29 or the counter-pressure roller 18.To enable the printing of the sheet substrate 6 located on the counter-pressure roller 18, it is preferably provided that the printing cylinder 29 or the counter-pressure roller 18 has such a large diameter that, in the position of the sheet substrate printing position 25b, it forms a printing surface with a radius of curvature in the range of 150 mm to 1300 mm, preferably 150 mm to 600 mm, and / or the printing cylinder 29 or the counter-pressure roller 18 has a radius in the range of 150 mm to 1300 mm, preferably 150 mm to 600 mm. Such a large diameter minimizes the curvature in the printing area, thus ensuring high print quality.
[0210] It is also preferably provided that the printing surface of the printing cylinder 29 is arranged at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, most preferably substantially perpendicular to the printing unit 8 of the multi-application module 1.
[0211] Figure 4a schematically illustrates another embodiment of a multi-application module 1, in particular a printing system 3, where the printing unit 8 is located in the transfer product printing position 25a. The multi-application module 1 is essentially designed analogously to the multi-application module 1 according to Figure 1a, with two differences. In contrast to the multi-application module 1 according to Figure 1a, the multi-function element 9 in the multi-application module 1 according to Figure 4a is designed to be displaceable. The multi-function element 9 is horizontally displaceable between a first position 30a and a second position 30b, as indicated by the horizontal double arrow. The first position 30a is equivalent to the transfer product printing position 25a. That is, when the multi-function element 9 is in the first position 30a, the printing unit 8 is also in the transfer product printing position 25a.In this first position 30a, the printing unit 8 can therefore print on the transfer product 7 guided on the multifunction element 9.
[0212] Figure 4b shows the multi-application module 1 according to Figure 4a, with the difference that the multi-function element 9 is now in the second position 30b and the printing unit 8 is in the sheet substrate printing position 25b. To move the printing unit 8 from Figure 4a to the sheet substrate printing position 25b, the multi-function element 9 is first moved horizontally from the first position 30a to the second position 30b. The printing unit 8 can then be moved vertically from the transfer product printing position 25a to the sheet substrate printing position 25b. The difference from the multi-application module 1 according to Figures 1a and 1b is therefore that the printing unit 8 can only be moved vertically.
[0213] Preferably, the multifunctional element 9 can be guided in a guide track along which it can be moved or shifted between the first position 30a and the second position 30b. The multifunctional element 9 can be moved or shifted manually or automatically, for example by means of a motor or robot arm.
[0214] The printing unit 8 can also be guided in a guide track, along which it can be moved or shifted between the transfer product printing position 25a and the sheet substrate printing position 25b. The printing unit 8 can be moved or shifted manually or automatically, for example by means of a motor or robot arm.
[0215] Figures 5a to 5f show exemplary embodiments of the multifunctional element 9 of a multi-application module 1. In each illustration, a printing unit 8 is additionally arranged above the multifunctional element 9, thereby clarifying the positioning of the multifunctional element 9 relative to the printing unit 8.
[0216] In Fig. 5a, the multifunctional element 9 comprises only the first multifunctional roller 91. Thus, the printing gap 10 at the transfer product printing position 25a is formed between the printing unit 8 and the first multifunctional roller 91. The first multifunctional roller 91 is preferably at least partially enclosed by the transfer product 7, so that the multifunctional roller 91 is driven by the transfer product 7. The ink output of the printing unit 8 preferably occurs at an angle in the range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, and most preferably substantially perpendicular to the circumferential edge of the first multifunctional roller 91. In this embodiment, it is preferably provided that the first multifunctional roller 91 has the largest possible diameter, so that the curvature in the printing area is as small as possible. This ensures high print quality. The in Fig.The first multifunctional roller 91 shown in 5a is rotatably mounted.
[0217] In Fig. 5b, the multifunctional element 9 comprises a first multifunctional roller 91 and a printing table 13 arranged above it. Thus, the printing gap 10 at the transfer product printing position 25a is formed between the printing unit 8 and the printing table 13. As in the embodiment according to Fig. 5a, the first multifunctional roller 91 is at least partially enclosed by the transfer product 7, so that the first multifunctional roller 91 is driven by the transfer product 7. As shown in Fig. 5b, the transfer product 7 is guided over the printing table 13. The printing table 13 preferably forms a flat surface, which acts as the printing surface. Printing on a flat surface ensures high print quality and printing accuracy.
[0218] In Fig. 5c, the multifunctional element 9 comprises only a printing table 13. Thus, in the embodiment shown in Fig. 5c, the printing gap 10 at the transfer product printing position 25a is also formed between the printing unit 8 and the printing table 13. The transfer product 7 is guided over the printing table 13. In preferred embodiments, the printing table 13 itself may have rollers and / or cylinders, in particular those integrated into the printing table 13, to enable improved running properties of the transfer product 7.
[0219] In Fig. 5d, the multifunctional element 9 comprises a first multifunctional roller 91 and two second multifunctional rollers 92. The transfer product 7 at least partially encircles the first multifunctional roller 91, thereby driving the first multifunctional roller 91. After the first point of contact between the transfer product 7 and the first multifunctional roller 91, the transfer product 7 is guided onto the first second multifunctional roller 92 and then, via the second second multifunctional roller 92, back onto the first multifunctional roller 91. That is, the transfer product 7 is clamped between the two second multifunctional rollers 92 in such a way that it forms a flat printing surface. In the embodiment shown in Fig. 5d, the printing gap 10 at the transfer product printing position 25a is formed between the flat printing surface, or between the two second multifunctional rollers 92, and the printing unit 8.High print quality and accuracy are also promoted by clamping the transfer product 7 to a flat printing surface using the second multi-function rollers 92. Preferably, both the first multi-function roller 91 and the second multi-function rollers 92 are rotatably mounted.
[0220] In Fig. 5e, the multifunctional element 9 comprises two secondary multifunctional rollers 92. The transfer product 7 at least partially encircles the two secondary multifunctional rollers 92 and is thereby driven. As already shown in Fig. 5d, in the embodiment according to Fig. 5e, the transfer product 7 is also clamped between the two secondary multifunctional rollers 92 to form a flat printing surface. This enables high print quality and printing accuracy. Preferably, the secondary multifunctional rollers 92 are rotatably mounted.
[0221] In Fig. 5f, the multifunctional element 9 comprises a first multifunctional roller 91 and a second multifunctional roller 92. Both the first multifunctional roller 91 and the second multifunctional roller 92 are at least partially enclosed by the transfer product 7 and driven by it. In the embodiment shown in Fig. 5f, the transfer product 7 is clamped over the first multifunctional roller 91 and the second multifunctional roller 92 in such a way that a flat printing surface is formed. The flat printing surface is preferably arranged at an angle in the range of 85° to 95°, in particular 86.5° to 93.5°, preferably 89.5° to 90.5°, and most preferably substantially perpendicular to the printing unit 8 or to the ink output of the printing unit 8. Preferably, the first multifunctional roller 91 and the second multifunctional roller 92 are rotatably mounted. Reference numeral list
[0222] 1 Multi-application module
[0223] 2 Multi-application device
[0224] 3 Printing system
[0225] 4 System
[0226] 5 Cold transfer unit
[0227] 6 arch substrate
[0228] 7 Transfer product
[0229] 8 printing units
[0230] 9 Multifunctional element
[0231] 91 first multi-functional roller
[0232] 92 second multi-function roller
[0233] 10 pressure gap
[0234] 11 a Direction of flow of the transfer product
[0235] 11 b Direction of flow of the bow substrate
[0236] 12a, 12b winding rollers
[0237] 13 Printing table
[0238] 14a UV pre-curing light source for transfer product
[0239] 14b UV pre-curing light source for bow substrate
[0240] 15 Deflection and / or guide roller
[0241] 16 clamping system
[0242] 17 Pressure roller
[0243] 18 Counter-pressure roller
[0244] 19a, 19b UV curing light source
[0245] 20 Relief roll or relief sword
[0246] 24 T transfer product transport system
[0247] 25a Transfer product printing position
[0248] 25b sheet substrate printing position
[0249] 26 Bow substrate conveying unit 27 Conveyor belt
[0250] 28 cylinder arrangement
[0251] 29 pressure cylinders
[0252] 30a first position
[0253] 30b second position
[0254] 31 transport cylinders
Claims
1. Claims 1. Multi-application module (1) for printing a sheet substrate (6) or a transfer product (7), comprising a printing unit (8) and a multi-functional element (9) and a cold transfer unit (5), characterized in that the printing unit (8) is displaceable between a transfer product printing position (25a) and a sheet substrate printing position (25b) such that the printing unit (8) either prints the transfer product (7) in the transfer product printing position (25a) or prints the sheet substrate (6) in the sheet substrate printing position (25b).
2. Multi-application module (1 ) according to claim 1 , characterized in that the multi-functional element (9) comprises a first multi-functional roller (91 ) and / or at least a second multi-functional roller (92) and / or a printing table (13).
3. Multi-application module (1) according to claim 1 or 2, characterized in that, that the multifunctional element (9) is arranged such that the transfer product (7) can be guided over the multifunctional element (9).
4. Multi-application module (1) according to claim 2 or 3, characterized in that the first multi-functional roller (91) in combination with a second multi-functional roller (92) and / or the first multi-functional roller (91) in combination with two second multi-functional rollers (92) and / or two second multi-functional rollers (92) are arranged such that the transfer product (7) can be guided over the first multi-functional roller (91) and / or the at least one second multi-functional roller (92) and thereby forms a flat printing surface.
5. Multi-application module (1) according to claim 4, characterized in that the flat printing surface in the transfer product printing position (25a) is arranged at an angle in a range of 85° to 95°, in particular 86.5° to 93.5°, preferably 89.5° to 90.5°, particularly preferably substantially perpendicular to the printing unit (8) and / or has a surface with a size between 250 mm 2 and 1,000,000 mm 2 preferably between 1000 mm 2 and 200000 mm 2 trains.
6. Multi-application module (1 ) according to one of claims 2 to 5, characterized in that the printing table (13) is arranged such that the transfer product (7) can be guided over the printing table (13).
7. Multi-application module (1) according to one of claims 2 to 6, characterized in that the printing table (13) has a flat surface, in particular between 250 mm 2 and 1,000,000 mm 2 preferably between 1000 mm 2 and 200000 mm 2 , forms and / or that the printing table (13) is arranged at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, most preferably substantially perpendicular to the printing unit (8).
8. Multi-application module (1 ) according to one of claims 2 to 7, characterized in that the pressure table (13) has air outlets for generating an air cushion, in particular an air cushion between the pressure table (13) and the transfer product (7).
9. Multi-application module (1) according to one of claims 2 to 8, characterized in that the surface of the first multi-functional roller (91) and / or the at least one second multi-functional roller (92) has a surface structure produced by a surface treatment process and / or that the first multi-functional roller (91) and / or the at least one second multi-functional roller (92) has an anti-slip coating and / or a traction coating, in particular with a layer thickness between 10 pm and 3 mm, preferably between 100 pm and 250 pm.
10. Multi-application module (1 ) according to one of the preceding claims, characterized in that the multi-function element (9) is horizontally displaceable between a first position (30a) and a second position (30b).
11. Multi-application module (1) according to one of the preceding claims, characterized in that the multi-application module (1) further comprises two winding rollers (12a, 12b) for receiving the transfer product (7), in particular wherein the two winding rollers (12a, 12b) have the same or opposite directions of rotation.
12. Multi-application module (1) according to one of the preceding claims, characterized in that the multi-application module (1) further comprises a clamping system (16) for clamping the transfer product (7), wherein the clamping system (16) comprises one or more of the following elements, individually or in combination selected from: dancer roller, controlled dancer roller, measuring roller, friction shaft.
13. Multi-application module (1 ) according to one of the preceding claims, characterized in that the printing unit (8) is or comprises a UV inkjet printing unit and / or that the printing unit (8) comprises at least one inkjet printhead.
14. Multi-application module (1 ) according to one of the preceding claims, characterized in that the printing unit (8) and / or the UV inkjet printing unit has at least two printhead rows and / or that the printing unit (8) has at least two ink receiving devices for receiving at least two different inks.
15. Multi-application module (1) according to one of the preceding claims, characterized in that in the transfer product printing position (25a) an ink ejection from the printing unit (8) is directed at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, particularly preferably substantially perpendicular, to the surface of the multi-functional element (9), in particular to the surface of the first Multifunctional roller (91) and / or to the flat printing surface and / or to the flat surface of the printing table (13).
16. Multi-application module (1 ) according to one of the preceding claims, characterized in that in the sheet substrate printing position (25b) an ink ejection from the printing unit (8) takes place at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, particularly preferably substantially perpendicular, to the surface of the sheet substrate.
17. Multi-application module (1 ) according to one of the preceding claims, characterized in that the printing unit (8) is movable vertically and / or horizontally between the transfer product printing position (25a) and the sheet substrate printing position (25b).
18. Multi-application module (1 ) according to one of the preceding claims, characterized in that a printing gap (10) is formed in the transfer product printing position (25a) between the printing unit (8) and the multi-function element (9).
19. Multi-application module (1) according to one of the preceding claims, characterized in that the printing unit (8) in the transfer product printing position (25a) prints along the direction of travel of the transfer product (11a) and / or that the printing unit (8) in the sheet substrate printing position (25b) prints along the direction of travel of the sheet substrate (11b), in particular wherein the direction of travel of the transfer product (11a) and the direction of travel of the sheet substrate (11b) are opposite to the printing unit (8).
20. Multi-application module (1 ) according to one of the preceding claims, characterized in that the multi-application module (1 ) has at least one UV pre-curing light source (14a, 14b) for the transfer product printing position (25a) and the sheet substrate printing position (25b).
21. Multi-application module (1) according to claim 20, characterized in that the at least one UV pre-curing light source for the transfer product printing position (14a) is arranged downstream of the printing unit (8) in the direction of travel of the transfer product (11a), and that the at least one UV pre-curing light source for the sheet substrate printing position (14b) is arranged downstream of the printing unit (8) in the direction of travel of the sheet substrate (11b).
22. Multi-application module (1) according to claim 20 or 21, characterized in that the at least one UV pre-curing light source for the transfer product printing position (14a) and the at least one UV pre-curing light source for the sheet substrate printing position (14b) are arranged in the printing unit (8), in particular such that the UV pre-curing light source (14a, 14b) is arranged downstream of the ink output.
23. Multi-application module (1) according to one of claims 20 to 22, characterized in that the at least one UV pre-curing light source (14a, 14b) is designed as an LED UV lamp and has an irradiance between 0 W / cm² 2 up to 10 W / cm 2 , preferably between 1 W / cm² 2 up to 9 W / cm 2 , generated and / or that at least one UV pre-curing light source is used as a UV lamp is designed and produces an irradiance between 0 W / cm and 100 W / cm, preferably between 20 W / cm and 60 W / cm.
24. Multi-application module (1) according to one of the preceding claims, characterized in that the multi-application module (1) comprises at least one detection unit which detects the position of at least one element and / or at least one layer on the sheet substrate (6) and / or the transfer product (7), in particular by means of a registration mark or register mark, wherein the detection unit is connected to a control unit which controls the printing unit (8) on the basis of the detected position data of the detection unit in such a way that the printing on the sheet substrate (6) and / or the transfer product (7) takes place in the register of the at least one element and / or the at least one layer.
25. Multi-application module (1 ) according to one of the preceding claims, characterized in that the cold transfer unit (5) comprises a pressure roller (17) and a counter-pressure roller (18).
26. Multi-application module (1 ) according to claim 25, characterized in that the pressure roller (17) is formed with a coating of rubber or silicone with a hardness between 25 Shore A and 100 Shore A, preferably between 50 Shore A and 90 Shore A.
27. Multi-application module (1) according to one of the preceding claims, characterized in that the cold transfer unit (5) comprises at least one UV curing light source (19a), preferably wherein the at least one UV The final hardening light source (19a) is further preferably arranged in the direction of travel of the sheet substrate (11b) and in the direction of travel of the transfer product (11a) after the pressure roller (17).
28. Multi-application module (1 ) according to one of the preceding claims, characterized in that the cold transfer unit (5) comprises a release roller (20) or a release blade, in particular for releasing a carrier layer from a transfer layer of the transfer product (7).
29. Multi-application module (1 ) according to one of the preceding claims, characterized in that the cold transfer unit (5) comprises at least one further UV curing light source (19b), preferably wherein the further UV curing light source (19b) is arranged, more preferably in the direction of travel of the sheet substrate (11 b) and in the direction of travel of the transfer product (11 a), after the release roller (20) or the release blade.
30. Multi-application module (1 ) according to one of claims 25 to 29, characterized in that the pressure roller (17) and / or the counter-pressure roller (18) is driven, in particular such that the counter-pressure roller (18) rotates clockwise or counterclockwise.
31. Multi-application module (1) according to one of claims 25 to 30, characterized in that the counter-pressure roller (18) is cooled and / or that the counter-pressure roller (18) has a hard chrome coating.
32. Multi-application module (1) according to one of the preceding claims, characterized in that that the cold transfer unit (5) comprises at least one detection unit which detects the position of at least one element and / or at least one layer on the sheet substrate (6) and / or the transfer product (7), in particular by means of a registration mark or register mark, and the positioning is carried out by stretching the transfer product (7), so that after the transfer product (7) has been transported to the press gap, the pressure roller (17) presses the at least one element and / or the at least one layer on the transfer product (7) in the register onto the at least one element and / or the at least one layer on the sheet substrate (6).
33. Multi-application module (1) according to one of the preceding claims, characterized in that the multi-application module (1) has a transfer product transport system (24) with a clamping system for controlled material transport, wherein the transfer product transport system (24) controls the register-accurate positioning in the press gap of the at least one element and / or the at least one layer on the transfer product (7) and the at least one element and / or the at least one layer on the sheet substrate (6) via the elongation of the transfer product (7) by means of the clamping system.
34. Multi-application module (1) according to one of the preceding claims, characterized in that the multi-application module (1) comprises a transfer product transport system (24) for controlled material transport, wherein the transfer product transport system (24) ensures register-accurate positioning in the press gap of the at least one element and / or the at least one layer on the transfer product (7) and the at least one element and / or the at least one layer on the sheet substrate (6) via the stretching of the transfer product (7) by means of a driven vacuum roller controls, in particular wherein the transfer product (7) is arranged with its unprinted side on the vacuum roller, so that the transfer product (7) undergoes stretching without contacting the already printed side of the transfer product.
35. Multi-application module (1) according to claim 33 or 34, characterized in that the transfer product transport system (24) comprises at least one driven roller influencing the transport speed of the transfer product (7) and a detection unit, in particular an optical sensor, for detecting the position of the at least one element and / or the at least one layer on the transfer product (7) by means of an optically detectable registration mark or register mark applied to the transfer product (7).
36. Multi-application device (2) comprising a multi-application module (1) according to any one of claims 1 to 35 and a sheet substrate conveying unit (26) for conveying one or more sheet substrates, wherein the sheet substrate conveying unit (26) comprises a conveyor belt (27) and / or a cylinder arrangement (28).
37. Multi-application device (2) according to claim 36, characterized in that the sheet substrate conveying unit (26) comprises a feed unit, in particular in the form of a magazine or stack of sheet substrates, and / or a discharge unit, in particular in the form of a magazine or stack for receiving the decorated sheet substrates.
38. Multi-application device (2) according to claim 36 or 37, characterized in that, that the conveyor belt (27) is designed in such a way that one or more sheet substrates can be guided on the conveyor belt (27).
39. Multi-application device (2) according to one of claims 36 to 38, characterized in that the conveyor belt (27) forms a flat printing surface in the position of the sheet substrate pressure position (25b).
40. Multi-application device (2) according to claim 39, characterized in that the flat pressure surface of the conveyor belt (27) is arranged at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, particularly preferably substantially perpendicular to the pressure unit (8) of the multi-application module (1).
41. Multi-application device (2) according to one of claims 36 to 40, characterized in that the cylinder arrangement (28) comprises at least one pressure cylinder (29) and / or at least one transport cylinder.
42. Multi-application device (2) according to one of claims 36 to 41, characterized in that the cylinder arrangement (28) is designed such that one or more sheet substrates can be guided on the cylinder arrangement (28).
43. Multi-application device (2) according to claim 41 or 42, characterized in that the printing cylinder (29) has such a large diameter that, in the position of the sheet substrate printing position (25b), it provides a printing surface with a radius of curvature in the range of 150 mm to 1300 mm. mm, preferably 150 mm to 600 mm and / or the printing cylinder (29) has a radius in the range of 150 mm to 1300 mm, preferably 150 mm to 600 mm.
44. Multi-application device (2) according to one of claims 41 to 43, characterized in that the printing surface of the printing cylinder (29) is arranged at an angle in a range of 85° to 95°, in particular from 86.5° to 93.5°, preferably from 89.5° to 90.5°, particularly preferably substantially perpendicular to the printing unit (8) of the multi-application module (1).
45. Multi-application device (2) according to one of claims 36 to 44, characterized in that the sheet substrate conveying unit (26) has a counter-pressure roller (18) as part of the cold transfer unit (5) of the multi-application module (1 ).
46. Working method for a multi-application device (2), in particular according to one of claims 36 to 45, characterized in that according to a first variant i) a printing unit (8) is brought into sheet substrate printing position (25b) and a sheet substrate (6) is brought along a sheet substrate conveying unit (26) to the sheet substrate printing position (25b) in order to print the sheet substrate (6) and further the printed sheet substrate (6) to a cold transfer unit (5) is used, with which a transfer product (7) is pressed onto the sheet substrate (6), or according to a second variant ii) the printing unit (8) in The transfer product (7) is brought to the transfer product printing position (25a) and the transfer product (7) is brought along the multifunctional element (9) to the transfer product printing position (25a) to print the transfer product (7) and further the printed The transfer product (7) is directed to the cold transfer unit (5), with which the transfer product (7) is pressed onto the sheet substrate (6).
47. Working method according to claim 46, characterized in that the multifunctional element (9) comprises a first multifunctional roller (91) and / or at least a second multifunctional roller (92) and / or a printing table (13).
48. Working method according to claim 46 or 47, characterized in that the cold transfer unit (5) has a counter-pressure roller (18) and a pressure roller (17), wherein the counter-pressure roller (18) and / or the pressure roller (17) are driven.
49. Working method according to one of claims 46 to 48, characterized in that the transfer product (7) is unwound from a first (12a) of two winding rollers (12a, 12b) and wound onto a second (12b) of two winding rollers (12a, 12b), in particular wherein the first (12a) of the two winding rollers (12a, 12b) and the second (12b) of the two winding rollers (12a, 12b) have the same or opposite directions of rotation.
50. Working method according to one of claims 47 to 49, characterized in that the transfer product (7) is printed on the side of the transfer product (7) facing away from the surface of the first multifunctional roller (91) and / or the at least one second multifunctional roller (92) and / or the printing table (13).
51. Working method according to one of claims 46 to 50, characterized in that the pressing of the transfer product (7) onto the sheet substrate (6) is carried out with the same counter-pressure roller (18) and the same pressure roller (17).
52. Working method according to one of claims 46 to 51, characterized in that in the first variant i) the sheet substrate (6) comprises at least one element and / or at least one layer on which the print is positioned as a further layer in register to this at least one element and / or to the at least one layer.
53. Working method according to one of claims 46 to 52, characterized in that in the second variant ii) the sheet substrate (6) comprises at least one element and / or at least one layer, wherein a pressure applied to the transfer product (7) is positioned relative to it, in particular wherein the at least one element and / or the at least one layer on the sheet substrate (6) and the pressure on the transfer product (7) overlap completely or partially or not at all.
54. Working method according to one of claims 46 to 53, characterized in that in the first variant i) the sheet substrate (6) comprises at least one element and / or at least one layer to which the print is positioned as a further layer in the register.
55. Working method according to one of claims 46 to 54, characterized in that the at least one element and / or the at least one layer on the transfer product (7) in the press gap between counter-pressure roller (18) and pressure roller (17) in the register to which at least one element and / or to which at least one layer and / or to which pressure is pressed on the sheet substrate (6).
56. Working method according to one of claims 46 to 55, characterized in that in the second variant ii) the sheet substrate (6) comprises at least one element and / or at least one layer, to which at least one element and / or at least one layer on the transfer product (7) is pressed in the press gap between counter-pressure roller (18) and pressure roller (17) in the register onto the at least one element or the at least one layer on the sheet substrate (6).
Citation Information
Patent Citations
Method and device for applying a film
WO2016150681A1
Multi-application module, multi-application device and working method for a multi-application device
DE102021132416A1
Printing apparatus and printing method
US20030026635A1
Duplex document printer mechanism
US6341860B1