EP4069515A1 - Machine d'impression à technologie d'impression hybride - Google Patents

Machine d'impression à technologie d'impression hybride

Info

Publication number
EP4069515A1
EP4069515A1 EP20816245.3A EP20816245A EP4069515A1 EP 4069515 A1 EP4069515 A1 EP 4069515A1 EP 20816245 A EP20816245 A EP 20816245A EP 4069515 A1 EP4069515 A1 EP 4069515A1
Authority
EP
European Patent Office
Prior art keywords
printing
central cylinder
material web
printing machine
inking units
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20816245.3A
Other languages
German (de)
English (en)
Inventor
Sven Michael
Thomas Boosmann
Wolfgang Cordroch
Ralph Luxem
Jens VOELSCHOW
Christian Bruns
Nico Schröder
Martin FLASPÖHLER
Nils-Henrik SCHIRMEISEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP4069515A1 publication Critical patent/EP4069515A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/001—Apparatus or machines for carrying out printing operations combined with other operations with means for coating or laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/007—Apparatus or machines for carrying out printing operations combined with other operations with selective printing mechanisms, e.g. ink-jet or thermal printers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08—Print finishing devices, e.g. for glossing prints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/04—Rotary letterpress machines for printing on webs
    • B41F5/16—Rotary letterpress machines for printing on webs for multicolour printing
    • B41F5/18—Rotary letterpress machines for printing on webs for multicolour printing using one impression cylinder co-operating with several forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/02—Platens
    • B41J11/04—Roller platens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/16—Means for tensioning or winding the web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/54—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
    • B41J3/546—Combination of different types, e.g. using a thermal transfer head and an inkjet print head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/46—Printing units for inserting latest news
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6517—Apparatus for continuous web copy material of plain paper, e.g. supply rolls; Roll holders therefor

Definitions

  • the invention relates to a printing machine with hybrid printing technology for printing a moving material web.
  • hybrid printing technology is understood to mean the combination of flexographic printing and digital printing.
  • the flexographic printing process is a suitable and proven process for the economical production of long print jobs.
  • a large number of technical developments have opened up new procedural possibilities in flexographic printing, such as the use of more colors and finer grids.
  • digital printing stands for various digital printing processes. What all these printing processes have in common is that there is no analogue printing form, but that printing is carried out directly from the digital database of prepress. Toners or inks are transferred directly or indirectly to the substrate. In contrast to flexographic printing, there are no costs for setting up the printing form. On the other hand, the running operating costs in digital printing are higher, since digital color systems are 10 to 20 times more expensive than flexographic printing color systems. The profitability in digital printing is therefore also dependent on the motif and its color assignment, because the more color is applied, the greater the influence on profitability. In the course of digitization, a trend towards ever shorter product cycles can be observed in the packaging industry. As a result, in packaging printing, this leads to fewer print runs for both first and repeat orders.
  • variable data printing Another trend in the packaging industry is variable data printing.
  • digital printing has an advantage over flexographic printing. Since there is no permanent print image memory with digital printing, each design can be implemented individually in one work step. This opens up the possibility of mass personalization in order to segment and address consumers in a targeted manner or to design the product promotion individually according to customer requirements with variable designs.
  • a digital printing machine with two central cylinders and a dryer unit located between the central cylinders is known from WO 2012/163829 A1.
  • Several inkjet printing inking units for printing the material web are arranged on the first central cylinder.
  • a device for the electrostatic discharge of particles adhering to the printing substrate web is located on the second central cylinder.
  • the combined use of digital printing and flexographic printing is not disclosed in WO 2012/163829 A1. In such a digital printing machine there is therefore none Possibility of combined use of flexographic printing or retrofitting the printing unit.
  • customer requirements for the above trends are changing. That is why digital printing machines have to be adaptable and flexible.
  • a printing machine with hybrid printing technology is known from WO 2017/207590 A1, in which a flexographic printing roller is removed and the space released by the printing roller can be equipped with an inkjet printing unit.
  • the inkjet printing unit will have a smaller printing width than the removed printing roller.
  • a linear guide is therefore provided so that the inkjet printing unit can be displaced transversely to the material web.
  • the object of the invention is therefore to create a printing machine with hybrid printing technology that can be used flexibly and adaptably in the course of the current trends in digitization.
  • the printing machine according to the invention with hybrid printing technology for printing a running material web is a printing machine with a rotating central cylinder, on the surface of which the material web is guided from a contact point to a separation point for printing, with several digital printing inking units for printing in the area of an upper half of the central cylinder the material web and in the area of a lower half of the central cylinder several flexographic printing inking units for printing the material web are arranged, with an unwinding station for unwinding the material web to be printed from a roll and a winding station for winding the printed material web onto a roll, the
  • Central cylinder are arranged, with feed guide rollers for feeding the material web unwound from the unwinding station to the central cylinder and with discharge guide rollers for discharging the printed material web from the central cylinder to the winding station, the feed guide rollers and the
  • Discharge guide rollers are arranged on a second side of the central cylinder, with a feed guide roller for placing the material web at the point of contact on the central cylinder and a strip guide roller for detaching the material web from the central cylinder, the feed guide roller and the strip guide roller configured in this way are that the contact point and the separation point are arranged on the lower quadrant of the guide cylinder.
  • the printing machine enables a hybrid printing technique with which the gap between conventional flexographic printing and digital printing can be closed. Since several digital printing inking units for printing the material web are arranged in the area of an upper half of the central cylinder and several flexographic printing inking units for printing the material web are arranged in the area of a lower half of the central cylinder, flexographic printing can be performed both before digital printing and after digital printing in one pass be applied. Since the contact point and the detachment point are also located on the lower quadrant of the guide cylinder, the material web can be conveyed to a drying station after flexographic printing without the printed side of the material web coming into contact with a guide roller until it reaches a drying station.
  • the printing machine according to the invention thus has a high degree of flexibility, since the material web can be printed using flexographic printing, digital printing or even a combination of both techniques.
  • the possibility of frequent changes in the workflow results in higher productivity.
  • this technology also enables greater flexibility in production planning.
  • the invention enables the inkjet inking units to be arranged in the area of the upper half of the central cylinder. This enables error-free operation of the inkjet printing inking units without the influence of the gravitational vector having a negative impact on the print image.
  • the material web consists of a plastic film or a plastic film replacement or an aluminum web or a paper web.
  • Plastic film is predominantly used in the packaging printing of flexible packaging, so that the printing machine according to the invention can be used with preference in this field.
  • a plastic film substitute such as polylactide (PLA) can also be used.
  • Polylactide is a non-naturally occurring polyester that is produced from sugar through a multi-stage synthesis.
  • Sugar is fermented to lactic acid and this is polymerized to PLA.
  • PLA is biodegradable according to EN 13432, but certain environmental conditions are necessary for this, which are usually only found in industrial composting plants.
  • 2 flexographic printing inking units are arranged behind the contact point and 2 flexographic printing inking units are arranged in front of the detachment point.
  • the 2 flexographic printing inking units behind the contact point can preferably be provided for applying a primer and / or a partial primer and / or a full-surface colored primer.
  • the 2 flexographic printing inking units in front of the separation point can preferably be provided for finishing (e.g. application of varnish, etc.) of the printed material web.
  • a drying station for drying the printed material web is arranged on said first side of the central cylinder in front of the winding station. Since the contact point and the detachment point are also located on the lower quadrant of the guide cylinder, the material web can be conveyed to a drying station after flexographic printing without the printed side of the material web coming into contact with a guide roller until it reaches a drying station.
  • a digital printing switch-off device is provided so that the printing machine can be operated as a pure flexographic printing machine.
  • a flexographic printing switch-off device can also be provided so that the printing machine can be operated as a pure digital printing machine.
  • the digital printing inking units can be designed on the basis of a suitable digital printing process, depending on the application. Two essential and fundamentally different processes are used in digital packaging printing: electrophotography, with the dry toner process or the liquid toner process, and inkjet printing, which in turn is divided into drop-on-demand and continuous inkjet.
  • the image is first created on a negatively charged image drum covered with photoreceptors.
  • the charge is removed by exposure to a print head using LEDs or a laser beam and a latent, electrostatic charge image is generated.
  • the toner adheres to the neutralized parts of the image drum.
  • the print image is transferred to the substrate either directly or via a rubber cylinder, fixed there and recreated for each printing process.
  • the imaging drum requires an exactly uniform exposure over the entire width, which means that conventional electrophotographic processes are limited to a maximum printing width of less than 800 mm.
  • the dry toner process is one of the oldest and most frequently used digital printing processes. It fixes the toner to the substrate at a high temperature. This results in the process-related disadvantage of the
  • Packaging area close to the print quality of the liquid toner process, but due to the powdery toner it is somewhat slower than liquid toner and therefore does not offer any in packaging applications
  • the dry toner process does not require a primer compared to the other processes and, according to the manufacturer, is available in various combinations of substrates and toners for both the indirect and the other suitable for direct contact with dry food.
  • the color sequence can be freely selected for the various applications in frontal, reverse and interlayer printing.
  • the liquid toner process in packaging printing offers a level of quality that is comparable to that of analog processes. In this process, too, an image drum is exposed and a latent printing form is created, which is then colored with an electrically charged liquid toner. Similar to offset printing, the developed color separation is then transferred from the image drum to the printing material with a rubber blanket cylinder.
  • the surface of the blanket cylinder is heated to approx. 105-110 ° C, so that the pigment-containing particles of the liquid toner begin to melt and form a thin and still soft, plasticized layer. Any carrier liquid that may still be present is evaporated in the process. When it comes into contact with the cold printing material, the liquid toner solidifies and remains firmly attached to the printing material.
  • the transfer by means of a blanket cylinder and the particle size of the liquid toner thus allow parallels to conventional offset printing.
  • all color separations are first collected on the blanket cylinder and then transferred together to the printing material.
  • Multi-separation is only used in sheet-fed printing, with the sheet running through the printing unit repeatedly until all colors have been transferred.
  • the liquid toner process allows a very high transmission speed, but this is reduced accordingly by the collection and joint transmission of the colors.
  • the printing speed of the liquid toner process is therefore somewhat slower than that of inkjet systems with a comparable resolution.
  • the four basic colors CMYK can be supplemented with orange, green and violet in order to print in the extended color space or to create an improved simulation of the Pantone colors.
  • Five colors are often used for this, depending on where the desired color is in the color space.
  • Liquid toners are known which are suitable for indirect contact with dry foods. The electrically charged particles dissolved in liquid have a size of 1-2 microns and, due to their small size, can accurately represent fine details.
  • the inkjet process does not require an image carrier, as the ink is transferred directly to the substrate from the fine nozzles of a print head.
  • the individual inkjet print heads differ from one another in their structure.
  • the contactless transfer of ink reduces the impact on the printing material.
  • the print heads are arranged so that large print widths can also be covered.
  • the ink droplets are generated according to the print image and ejected onto the substrate.
  • the piezo drop-on-demand process the piezo-ceramic element on the inkjet spray head is controlled with the digital data.
  • the contraction or expansion of this element in the pump chamber forms an acoustic wave which leads to the formation of drops at the outlet opening of the spray head.
  • the shape and mass of the drop formation as well as its speed depend on the electrical pulse shape and frequency as well as the ink parameters surface tension and viscosity. Between 10,000 and 100,000 ink drops with a nominal volume of 1 to 100 picoliters can be generated per second.
  • the quality of the ink has a decisive influence on the print quality.
  • thermal drop-on-demand process also known as bubble jet
  • the bubble ejects a precisely defined amount of ink from the nozzle opening.
  • the bladder recedes, a corresponding one becomes Amount of ink drawn from the cartridge and the process starts again. Heating and cooling take place in the microsecond range.
  • thermal inkjet heads are inexpensive, which is why their number can be correspondingly large in order to cover the corresponding printing widths, printing speeds and resolutions. They can also be exchanged quite easily, but are subject to wear and tear.
  • Inkjet processes work in packaging printing with aqueous pigment or UV inks. Up to seven colors, four basic colors plus light magenta, light cyan and light black or orange, green, violet or blue and / or special colors are used. Spot colors mixed from a basic color system do not occur because changing the color heads in the machine would be too time-consuming. Low-migration, water-based inks are available for food packaging that are approved for their intended use. UV inks are rated very critically by the food industry with regard to migration and because of their smell.
  • the digital printing inking units consist of inkjet printing inking units.
  • Inserts are preferably provided for the inkjet printing inking units in such a way that the positions of the inkjet printing inking units are interchangeable.
  • a star-shaped paint supply can be provided in such a way that in Depending on the inkjet printing inking unit located in the insert, the insert is automatically supplied with the corresponding printing ink.
  • Fig. 1 shows a schematic representation of the local conditions on
  • FIG. 2 shows a perspective view of the printing machine according to the invention
  • FIG. 3 shows a side view of the printing machine according to the invention.
  • Fig. 1 shows a schematic representation of the local conditions on
  • Central cylinder of the printing machine To describe the spatial relationships, it is assumed, without loss of generality, that the central cylinder 101 rotates clockwise 102 within the framework of the fixed coordinate system with a horizontal X-axis and a vertical Y-axis, the origin of the coordinate system being at the pivot point of the central cylinder 101 . Furthermore, the force of gravity vector 103 is aligned parallel to the Y axis in the negative Y direction.
  • the upper half 104 of the central cylinder 101 denotes the space above the X-axis, while the lower half 105 of the
  • Central cylinder 101 defines the space below the X-axis.
  • the left side 106 of the central cylinder 101 designates the space to the left of the Y axis
  • the right side 107 of the central cylinder 101 defines the space to the right of the Y axis.
  • the central cylinder 101 is divided into the 4 quadrants Q1, Q2, Q3 and Q4, with the quadrant Q1 in the range 45 ° to 135 °, the quadrant Q2 in the range 135 ° to 225 °, the quadrant Q3 in the range 225 ° to 315 ° and the quadrant Q4 is in the range 315 ° to 45 °. From the preceding designations it also follows that the quadrant Q1 is the upper quadrant, the quadrant Q3 is the lower quadrant, the quadrant Q2 is the left quadrant and the quadrant Q4 is the right quadrant.
  • Fig. 2 shows a perspective view of the printing press according to the invention.
  • the printing machine according to the invention consists of a central cylinder 201, with 8 inkjet printing inking units 202 (which are denoted together with a reference number for the sake of simplicity) in the area of the upper half of the central cylinder and 4 flexographic printing in the area of the lower half of the central cylinder Inking units 203 (which are designated together with a reference number for the sake of simplicity) are arranged.
  • the arrangement of the inkjet inking units 202 in the area of the upper half of the central cylinder 201 enables error-free operation of the inkjet printing inking units without the influence of the gravity vector having a negative impact on the print image.
  • the material web 204 is guided from the unwinding station 205 to the central cylinder 201 for printing.
  • the finished printed material web is wound up again in the winding station 206.
  • a housing 207 is located on the left side of the central cylinder 201.
  • the housing 207 there are feed guide rollers for feeding the material web 204 unwound from the unwinding station 205 to the central cylinder 201 and discharge guide rollers for discharging the printed material web from the central cylinder 201 to the winding station 206.
  • On the right side of the central cylinder 201 there is a drying station 208, which is arranged in front of the winding station 206 for drying the printed material web.
  • 3 shows a side view of the printing machine according to the invention.
  • the components already described according to FIG. 2 are identified by the same reference numerals, so that in this respect reference is made to the description according to FIG. 2.
  • the path of the web of material 204 is described in detail below:
  • the material web 204 arrives at the feed guide rollers 301 (which are designated together with a reference number for the sake of simplicity), which are located in the housing 207 on the left-hand side of the central cylinder.
  • the feed guide rollers 301 guide the material web on to the feed guide roller 302, from where the material web arrives at the contact point 303 on the surface of the central cylinder 201.
  • the material web On the surface of the central cylinder 201, the material web is guided past the individual inking units 202 and 203 in perfect register. At the separation point 304, the material web is then separated from the surface of the central cylinder 201 by the strip guide roller 305 in a defined manner. Both the contact point 303 and the detachment point 304 are located in the area of the lower quadrant Q3 of the central cylinder 201. In this way, the material web can be conveyed to the drying station 208 after flexographic printing without the printed side of the material web being carried along until it reaches a drying station comes into contact with a guide roller.
  • the material web arrives at the discharge guide rollers 306 (which for the sake of simplicity are designated together with a reference number), which are also located on the left side of the central cylinder in the housing 207.
  • the discharge guide rollers 306 guide the material web on to the drying station 208, where the printed side of the material web is dried in the winding station 206 before being wound up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Rotary Presses (AREA)
  • Ink Jet (AREA)

Abstract

L'invention concerne une machine d'impression à technologie d'impression hybride pour l'impression d'une longueur continue de matériau (204). Afin de créer une machine d'impression à technologie d'impression hybride qui est adaptable et flexible en cours d'utilisation durant la tendance actuelle à la numérisation, la machine d'impression à technologie d'impression hybride selon l'invention destinée à imprimer une longueur continue de matériau (204) est une machine d'impression comprenant un cylindre central rotatif (201), sur la surface duquel est guidée la longueur de matériau (204) d'un point de positionnement (303) à un point de libération (304) pour l'impression. Plusieurs unités d'encrage (202) pour l'impression numérique de la longueur de matériau (204) sont disposées dans la région d'une moitié supérieure du cylindre central (201) et plusieurs unités d'encrage (202) pour l'impression flexographique de la longueur de matériau (204) sont disposées dans la région d'une moitié inférieure du cylindre central (201). Une station de déroulement (205) est prévue pour le déroulement de la longueur de matériau (204) à imprimer à partir d'un rouleau et une station d'enroulement (208) est prévue pour l'enroulement de la longueur de matériau imprimée (204) sur un rouleau, la station de déroulement (205) et la station d'enroulement (208) étant disposées sur un premier côté du cylindre central (201), avec des rouleaux de guidage d'alimentation (301) pour alimenter le cylindre central (201) en longueur de matériau (204) déroulée de la station de déroulement (205) et des rouleaux de guidage de sortie (308) pour faire sortir la longueur de matériau imprimée (204), du cylindre central (201) à la station d'enroulement (208). Les rouleaux de guidage d'alimentation (301) et les rouleaux de guidage de sortie (308) sont disposés sur un second côté du cylindre central (201), avec un rouleau de guidage de charge (302) pour le positionnement de la longueur de matériau (204) sur le cylindre central (201) au niveau du point de positionnement (303) et un rouleau de guidage de décapage (305) pour détacher la longueur de matériau (204) du cylindre central (201), le rouleau de guidage de charge (302) et le rouleau de guidage de décapage (305) étant conçus de telle sorte que le point de positionnement (309) et le point de sortie (304) soient disposés sur le quadrant inférieur (Q3) du cylindre central.
EP20816245.3A 2019-12-06 2020-12-04 Machine d'impression à technologie d'impression hybride Pending EP4069515A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19214183.6A EP3831603A1 (fr) 2019-12-06 2019-12-06 Machine d'impression avec technologie d'impression hybride
PCT/EP2020/084625 WO2021110912A1 (fr) 2019-12-06 2020-12-04 Machine d'impression à technologie d'impression hybride

Publications (1)

Publication Number Publication Date
EP4069515A1 true EP4069515A1 (fr) 2022-10-12

Family

ID=68834965

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19214183.6A Pending EP3831603A1 (fr) 2019-12-06 2019-12-06 Machine d'impression avec technologie d'impression hybride
EP20816245.3A Pending EP4069515A1 (fr) 2019-12-06 2020-12-04 Machine d'impression à technologie d'impression hybride

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP19214183.6A Pending EP3831603A1 (fr) 2019-12-06 2019-12-06 Machine d'impression avec technologie d'impression hybride

Country Status (5)

Country Link
US (1) US11951733B2 (fr)
EP (2) EP3831603A1 (fr)
JP (1) JP2023509304A (fr)
CN (1) CN114761242A (fr)
WO (1) WO2021110912A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN115384187B (zh) * 2022-08-02 2023-08-22 广州精陶机电设备有限公司 一种具有外置烘干的喷墨印刷系统

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US11951733B2 (en) 2024-04-09
CN114761242A (zh) 2022-07-15
US20220410556A1 (en) 2022-12-29
WO2021110912A1 (fr) 2021-06-10
EP3831603A1 (fr) 2021-06-09
JP2023509304A (ja) 2023-03-08

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