EP2628594A1 - Dispositif d'impression digitale par tampographie - Google Patents

Dispositif d'impression digitale par tampographie Download PDF

Info

Publication number: EP2628594A1
Authority: EP; European Patent Office
Prior art keywords: substrate; printing; cleaning; tampon; ink
Prior art date: 2012-02-15
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.): Granted

Application number

EP13000288.4A

Other languages

German (de)

English (en)

Other versions

EP2628594B1 (fr

Inventor

Peter Weingartner

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.)

Durst Phototechnik Digital Technology GmbH

Original Assignee

Durst Phototechnik Digital Technology GmbH

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.)

2012-02-15

Filing date

2013-01-21

Publication date

2013-08-21

2013-01-21 Application filed by Durst Phototechnik Digital Technology GmbH filed Critical Durst Phototechnik Digital Technology GmbH

2013-08-21 Publication of EP2628594A1 publication Critical patent/EP2628594A1/fr

2019-07-10 Application granted granted Critical

2019-07-10 Publication of EP2628594B1 publication Critical patent/EP2628594B1/fr

Status Active legal-status Critical Current

2033-01-21 Anticipated expiration legal-status Critical

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
- B41F17/001—Pad printing apparatus or machines
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/0057—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material where an intermediate transfer member receives the ink before transferring it on the printing material
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
- B41M5/0256—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means

Definitions

the present invention relates to the field of colored digital ink pad printing.
Pad printing is a widely used printing technique for printing on workpieces having planar and / or uneven and raised, recessed or generally curved surface areas.
the areas of application of the pad printing technology are due to the ability to print on even non-planar surfaces by a deformable tampon, very diverse. It can e.g. Cups, buttons of any kind, lighters, pens, levers, tennis and golf balls, cups, tools and other non-flat workpieces are easily printed.
Pad printing usually use a deformable tampon, which receives in a cliché given as depression and consisting of ink existing print motif by means of pressure contact and transferred in a second step, the recorded motif by means of pressure contact on a workpiece.
Clichés are the carriers of the chemical, photochemical or laser printed motifs and can be subdivided into different types.
the clichés can be made of metals such as steel, strip steel, aluminum or chrome as well as ceramics but also of a variety of polymers and alkoxides.
the print motif in the cliché is etched deepened on metallic surfaces, first photo-exposed on UV-sensitive surfaces and then with a washout medium, the substrate to be removed is washed out.
Ceramic surfaces and alkoxide surfaces can be prepared by laser imaging.
colored in the context is to be understood as meaning both the primary colors (red (magenta), blue (cyan), yellow), their mixed colors as well as a "transparent color", individual colors, white and black.
digital printer should be understood in the context to mean printers such as ink jet printers that enable non-contact printing of a subject.
digital pad printer is to be understood in the context as meaning a printing device comprising a digital printer and a pad printing device as a combination.
digital pad printing system and “digital pad printing device” are to be understood as synonyms for "digital pad printing”.
a conventional digital pad printing system unlike a pad printing system, does not use a cliche but essentially uses a planar release substrate having an ink receiving surface on which an ink motif is printed with a digital printer, the printed ink motif being press contacted onto a tampon in a subsequent operation is transmitted.
Such a digital tampon printing device is in the document EP 1 053 882 B1 disclosed.
the document describes a printer comprising a digital printer and a conventional pad printing device.
This printer includes a substantially planar dispensing substrate having a printing ink receiving surface.
ink is delivered from the nozzles to the ink receiving surface of the dispensing substrate to print a motif, the printheads and the dispensing substrate being movable relative to one another.
the printed ink motif is picked up by a print transfer ink from the discharge substrate by means of pressure contact and transferred to an object to be printed by means of pressure contact.
the dispensing substrate is configured as an endless conveyor that cyclically travels past the printheads in a conveying direction.
the printing device includes a substantially planar writable dispensing substrate, which may be, for example, a textile tape and a natural or synthetic material, the backing having a certain microporosity to prevent the ink of the inkjet printer from blurring, To be able to pick up streaks or loss of outlines.
the delivery substrate is thereby unrolled from a supply reel and rolled up again after printing by a take-up reel.
the image printed on the substantially flat base is picked up by a movable pad by pressure contact and transferred in a subsequent step to a desired location of a workpiece to be printed.
the conventional digital pad printing systems are generally characterized by a relatively complicated mechanical structure, which is reflected in the printing processes.
the delivery substrate is an object for receiving and delivering an ink motif, and is part of a delivery device that places the delivery substrate into the area of action of the particular printing device, the digital printing device, and the pad printing device operating at different printing levels.
a printing method in which the delivery substrate is unrolled by means of a delivery substrate conveying device in a first plane from a supply spool and printed with a digital printer.
a deflection roller / guide By a deflection roller / guide the dispensing substrate is deflected in a second parallel above or below level, so that the dispensing substrate changes orientation when changing the planes and continues parallel to the first level upside down.
this second level the transfer of the ink motif from the delivery substrate to the tampon occurs by pressure contact.
a delivery device configured as an endless conveyor is provided for the delivery substrate.
the dispensing substrate moves cyclically past the printheads in a conveying direction, the dispensing substrate changing both the plane and the orientation in the printing processes.
a Dispensing substrate conveying device necessary to perform the printing processes on two levels can.
the inkjet printer as well as the pad printing device preferably operate on the same plane for the sake of simplicity.
the dispensing substrate device of the dispensing substrate unlike the conventional digital ink pad printing apparatus, may be simplified in structure so as to function only as a retainer and not to move substantially, with the digital printer, the pad printer, and the dispenser substrate cleaning apparatus moving relative thereto. It is thereby achieved that the dispensing substrate substantially retains orientation during the entire process duration.
the simplified construction has the advantage that costs can be reduced and also that accessibility from above is at least partially facilitated since the delivery substrate substantially maintains orientation and because the individual printing devices operate at the same levels.
digital tampon printing device is particularly suitable by the simplified design to perform the printing method of the invention.
Another problem with the method is that the quality of cleaning is relatively low, since the receptivity of the ink fountain bar pad, especially for partially dried ink residues, is generally not high enough to completely clean the release substrate after a single cleaning.
the quality problem resulting from said process could be counteracted by, for example, cleaning the release substrate in several purification steps.
the tampon itself must be cleaned with, for example, a tampon cleaning device so as not to re-transfer the adhering ink residue to the delivery substrate.
the present invention has for its object to provide a digital ink pad printing machine, with a constant high process speed can be guaranteed while maintaining high print quality.
cleaning when, in the context of this description, cleaning is mentioned, this does not only mean the execution of the cleaning following the previous working step.
cleaning operation is intended to mean the arrangement of a device following the previous working step into the area of action of a second device for carrying out the cleaning.
placing a first device in the area of action of a second device does not only mean the forward movement of the first device into the area of action of the second device.
arranging or “arrangement” should also be meant the relative movement of the two devices to each other, in the relative movement, for example, move both devices or only the second device is moved towards the first, so that after the arrangement, a device is within the scope of another device, so that the implementation of a desired step can take place.
the printing method according to the invention is carried out, inter alia, by the fact that the cleaning of the delivery substrate with the tampon is abandoned and carried out with a dedicated release substrate cleaning device.
a control unit determines an optimal sequence of process steps in order to greatly reduce interruptions in the process of the printing press, so that the process speed can be increased.
the procedure according to the invention is such that a transfer process of the ink motif from the tampon to a workpiece is at least partially overlapping in time with a cleaning process of the dispensing substrate and preferably at least one cleaning process of at least one tampon takes place within one printing cycle or two successive printing cycles, in which the at least one tampon Tampon cleaning device is cleaned.
a total of two cleaning devices are provided according to the invention, one for the release substrate and one for the at least one tampon. This means that high process stability, process quality and a high process speed can be guaranteed at any time. However, additional cleaning devices for cleaning the dispensing substrate or the tampon may also be provided.
the dispensing substrate cleaning device is designed such that after a single cleaning operation, even stubborn ink residue can be removed from the dispensing substrate so that a virgin surface can be provided for each new ink motif.
FIG. 12 is a schematic representation of a preferred embodiment of the new digital ink printing apparatus 152 of the present invention including a pad printing apparatus 102, a pad cleaning apparatus 148, an inkjet printing apparatus 100, a dispenser substrate cleaning apparatus 140, and a printer Dispensing substrate device 104 includes which dispenser substrate device 104 is not moved.
Fig. 2 11 shows a schematic representation of a preferred embodiment of the invention, in which an arrangement of a substantially flat release substrate 108 is shown in the area of effect of an inkjet printing device 100, wherein the release substrate device 104a is movable relative to the pad printing device 102, inkjet printing device 100 and the release substrate cleaning device 140.
Fig. 3 11 shows a schematic representation of a preferred embodiment of the invention, in which an arrangement of the printed release substrate 108 is shown in the area of action of a pad printing device 102, wherein the delivery substrate device 104a is movable relative to the pad printing device 102, inkjet printing device 100 and the release substrate cleaning device 140.
FIG. 12 shows a preferred perspective construction of the inventive delivery substrate device 104 / 104a with the substantially planar surface of the ink receiving delivery substrate 108.
Fig. 1 shows a schematic representation of a preferred embodiment of the digital ink pad 152 with which the inventive printing method is performed.
This embodiment comprises an inkjet printing device 100, a pad printing device 102, a dispensing substrate device 104, a dispenser substrate cleaning device 140 and a pad cleaning device 148.
the dispensing substrate 108 assumes a fixed position during the entire printing process, ie it is not moved.
the dispensing substrate device 104 with dispensing substrate 108 is mounted on a dispensing substrate holding device 101, for example.
a substantially flat release substrate 108 is arranged in the area of action of an inkjet printer 100.
the dispensing substrate 108 assumes a fixed position, that is, it is not moved, wherein the inkjet printer 100 is guided over the dispensing substrate 108. It should be noted that in this example, the dispensing substrate 108 assumes a fixed position throughout the printing process.
the ink motif 112 is printed on the delivery substrate 108 by means of the inkjet printer 100. After completion of the ink motif 112, the release substrate 108 is placed in the area of action of a tampon 118 in a method step c).
step d) the ink motif 112 is transferred from the delivery substrate 108 to the pad 118 by pressure contact, and in a cleaning process, the delivery substrate 108 is placed in the area of action of a delivery substrate cleaning device 140 and cleaned, and in a transfer process, the ink motif 112 is removed from the pad 118 transferred to the workpiece 142.
the procedure is such that the transfer process of the ink motif 112 from the tampon 118 to a workpiece 142 is at least partially overlapping in time with the cleaning process of the delivery substrate 108, and preferably at least one cleaning process of at least one tampon takes place within one printing cycle or two subsequent printing cycles 118, wherein the at least one tampon 118 is placed and cleaned in the area of action of the tampon cleaning device 148.
a new printing cycle begins in which the release substrate 108 is again arranged in the area of action of the inkjet printer 100.
Figures 2 and 3 show schematic representations of different process steps of a preferred embodiment of the digital pad printing 152, which is also particularly suitable to perform the inventive printing method.
the difference between the dispensing substrate device 104a in FIGS Fig. 2 . 3 and the delivery substrate device 104 in FIG Fig. 1 is that the former is movable and the latter occupies a fixed position, that is not moved.
the step e) can take place in such a way that the transfer of the ink motif 112 to the workpiece 142 is at least partially overlapping in time with the cleaning process of the delivery substrate 108 in the context of the transfer process.
the step e) can take place in such a way that the transfer process of the ink motif 112 to the workpiece 142 is at least partially overlapping in time with the cleaning of the delivery substrate 108 as part of the cleaning process.
the step e) can take place in such a way that at least partially overlapping in time with the cleaning of the delivery substrate 108 in the course of the cleaning process Transfer of the ink motif 112 on the workpiece 142 in the context of the transfer process takes place.
the at least one cleaning process and preferably the at least one cleaning of the at least one tampon 118, can take place at least partially overlapping in time with the cleaning process or the cleaning during the cleaning process of the dispensing substrate 108.
An arrangement of the tampon 118 for cleaning can be carried out such that a rotational movement of the tampon carrier 116 is performed about an axis 114.
the dispensing substrate 108 may occupy a fixed position in the process, i. it is not moved with the inkjet printer 100, the pad printing device 102 and the dispenser substrate cleaning device 140 being moved relative to the dispensing substrate 108.
the dispensing substrate 108 in another preferred embodiment, may be moved relative to the inkjet printer 100, the pad printing device 102, and the dispenser substrate cleaning device 140.
the dispensing substrate 108 may change direction between the two printing devices, inkjet printer 100 and pad printing device 102, before and / or during and / or after a printing process in a periodically progressive transport operation with reciprocating motion 110, with back and / or forth originating movement 110 is printed.
the arrangement of the essentially planar delivery substrate 108 into the effective range of the inkjet printer 100 according to step a) at least partially overlaps with the cleaning process and preferably with the cleaning of the delivery substrate 108 during the cleaning process according to step e) of FIG previous printing cycle done. This can further increase the speed of the digital pad printing machine.
the digital ink printer includes an inkjet printer 100, a pad printing device 102, a pad cleaning device 148 and a dispensing substrate device 104 / 104a, with the dispensing substrate device 104 / 104a and with an inkjet positioning device, the dispensing substrate 108 and the inkjet printer 100 in a predetermined manner at a constant distance in two dimensions relative to each other and wherein a dispensing substrate cleaning device 140 is provided for cleaning the dispensing substrate 108.
Pad printing device 102 may include a tampon carrier 116 rotatable incrementally about an axis 114 that supports at least one tampon 118.
the tampon carrier 116 can perform an up and down stroke 122 in synchronism with the stepwise rotational movement 120.
the tampon carrier 116 may perform a horizontal reciprocating motion 124 in synchronism with an up and down stroke 122.
the pad carrier 116 can be moved in all three spatial directions.
the dispensing substrate device 104 may consist of a plate 400, in particular a metal plate on which, for example, a structure 402 is mounted.
the dispenser substrate device 104 / 104a has a substantially planar dispensing substrate 108 on the top thereof.
the substantially planar release substrate 108 may also have a microangled surface to accept certain inks.
the dispensing substrate device 104a may include a guide device that includes at least one guide rail 150, and preferably at least two guide rails 150.
the digital pad printing apparatus may include an endless conveyor 144 having a conveyor 154 on which support means 146 for the workpieces 142 to be printed may be provided.
the endless conveying device 144 may for example be arranged parallel below or next to the guiding device.
the driving device for moving the discharge substrate device 104a between the inkjet printing device 100 and the pad printing device 102 may be, for example, a linear motor, a spindle motor, or another motor.
the present invention is not limited to the embodiments of the digital ink pad 152 in FIGS Fig. 1-3 limited to understand. This may include, for example, two dispensing substrate devices 108 and two pad printing devices 102, so that the production capacity may be further increased.
the dispensing substrate cleaning device 140 may include a cleaning belt wiper device that cleans the dispensing substrate 108.
the cleaning belt is wetted with a cleaning fluid and is pressed with a pressing device onto the surface of the delivery substrate and guided, for example, by rollers over the delivery substrate.
surfactants suitable volatile organic compounds or other solvents in which the inks dissolve may be used as cleaning fluids.
the dispensing substrate 108 may be dried immediately thereafter with a dry tape.
a tape which is wetted with a volatile organic solvent can be used, whereby the solvent must evaporate as quickly as possible, so that it does not lead to delays in the printing process.
an air blower can be used for rapid and immediate drying of the dispensing substrate 108.
the air blower may be integrated in the dispensing substrate cleaning device 140.
the wetted with the cleaning fluid tape and the belt for drying are formed such that preferably no fiber residues remain on the release substrate 108 after cleaning. Should undesired fiber residues nevertheless remain on the delivery substrate 108, these can be removed with an air blower.

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Ink Jet (AREA)
Application Of Or Painting With Fluid Materials (AREA)

EP13000288.4A 2012-02-15 2013-01-21 Procédé d'impression digitale par tampographie Active EP2628594B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102012002808		2012-02-15

Publications (2)

Publication Number	Publication Date
EP2628594A1 true EP2628594A1 (fr)	2013-08-21
EP2628594B1 EP2628594B1 (fr)	2019-07-10

Family

ID=47603215

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP13000288.4A Active EP2628594B1 (fr)	2012-02-15	2013-01-21	Procédé d'impression digitale par tampographie

Country Status (2)

Country	Link
EP (1)	EP2628594B1 (fr)
DE (1)	DE102013000835A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103692778A (zh) *	2013-12-25	2014-04-02	东北大学	一种全自动打火机印刷机
WO2016188650A1 (fr) *	2015-05-22	2016-12-01	Wilfried Philipp	Dispositif de tampographie et procédé d'impression indirecte d'objets
WO2021259893A1 (fr) *	2020-06-25	2021-12-30	Phoenix Contact Gmbh & Co. Kg	Appareil de tampographie et procédé de tampographie
CN114132070A (zh) *	2021-11-30	2022-03-04	赣州惠彩印刷有限公司	一种环保印刷装置
IT202100003776A1 (it) *	2021-02-18	2022-08-18	ROBOPRINT srls	Dispositivo di stampa tampografica perfezionato mediante tecniche digitali

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103707653B (zh) *	2013-12-25	2015-10-21	东北大学	一种带装箱装置的打火机打印机
CN111674146B (zh) *	2020-05-11	2022-08-12	黄军	一种安全帽快速印制商标的设备

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2013
- 2013-01-21 DE DE102013000835A patent/DE102013000835A1/de not_active Withdrawn
- 2013-01-21 EP EP13000288.4A patent/EP2628594B1/fr active Active

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DE3820340C1 (en) *	1988-06-15	1989-06-22	Tampoflex Gmbh, 7257 Ditzingen, De	Pad printing machine
EP0379447A1 (fr) *	1989-01-20	1990-07-25	Merlin Gerin	Machine de tampographie flexible
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN103692778A (zh) *	2013-12-25	2014-04-02	东北大学	一种全自动打火机印刷机
CN103692778B (zh) *	2013-12-25	2015-12-09	东北大学	一种全自动打火机印刷机
WO2016188650A1 (fr) *	2015-05-22	2016-12-01	Wilfried Philipp	Dispositif de tampographie et procédé d'impression indirecte d'objets
WO2021259893A1 (fr) *	2020-06-25	2021-12-30	Phoenix Contact Gmbh & Co. Kg	Appareil de tampographie et procédé de tampographie
IT202100003776A1 (it) *	2021-02-18	2022-08-18	ROBOPRINT srls	Dispositivo di stampa tampografica perfezionato mediante tecniche digitali
CN114132070A (zh) *	2021-11-30	2022-03-04	赣州惠彩印刷有限公司	一种环保印刷装置

Also Published As

Publication number	Publication date
DE102013000835A1 (de)	2013-08-22
EP2628594B1 (fr)	2019-07-10

Publication	Publication Date	Title
EP2628594B1 (fr)	2019-07-10	Procédé d'impression digitale par tampographie
DE60028122T2 (de)	2006-09-28	Verbessertes Mehrfarbentampondrucksystem
DE2815388C3 (de)	1981-06-11	Vorrichtung zum Waschen von Zylindern an Druckmaschinen, insbesondere Offsetdruckmaschinen
EP0209896B1 (fr)	1990-02-07	Procédé et dispositif pour la décoration des récipients en métal ou plastique
DE112005000374B4 (de)	2009-12-17	Schnellmaterialwechselmodul, Verfahren zum Wechseln einer Materialrolle, sowie Schablonendrucker
DE60221473T2 (de)	2007-11-29	Schreiberwischverfahren und -anordnung mit Laufband
DE68914934T2 (de)	1994-10-13	Reinigungssystem für Bogenoffsetdruckmaschinen.
EP3169519B1 (fr)	2018-04-25	Unité d'impression avec cylindre porte-plaques et dispositif pour changer les plaques d'impression
DE102008053118A1 (de)	2010-04-29	Vorrichtung und Verfahren zur Reinigung von Gummitüchern auf Gummituchzylindern
EP1088661B1 (fr)	2007-08-15	Procédé et dispositif de décoration d'objets individuels
DE102016201140B4 (de)	2018-05-03	Verfahren zum Betrieb einer ein Segmentrad aufweisenden Vorrichtung zum Bedrucken von Hohlkörpern
EP4065376B1 (fr)	2023-08-16	Machines d'impression et procédé de nettoyage d'au moins une barre de buses d'au moins un ensemble d'impression
AT389850B (de)	1990-02-12	Druck- und beschriftungsverfahren fuer bauteile
EP0424716B1 (fr)	1995-01-04	Machine d'impression à tampon avec dispositif de nettoyage du tampon et procédé pour sa mise en oeuvre
WO2003031183A1 (fr)	2003-04-17	Procede de serigraphie pour structure plane textile, et dispositif pour la mise en oeuvre de ce procede
DE4440325C1 (de)	1996-02-01	Reinigungseinrichtung für eine Bogenleiteinrichtung einer Rotationsdruckmaschine
CH652347A5 (de)	1985-11-15	Vorrichtung zum aufbringen eines fluessigen bzw. halbfluessigen mediums auf die druckplatte einer druckmaschine, insbesondere offsetdruckmaschine.
EP1181986B1 (fr)	2004-10-20	Dispositif pour enduire de colle un rouleau selon un dessin déterminé
DE19706295A1 (de)	1998-08-27	Verfahren zum Drucken von Mustern
EP0548501B1 (fr)	1996-01-03	Dispositif pour le nettoyage d'un cylindre d'impression flexographique
DE19616410A1 (de)	1996-10-31	Thermodrucker
DE102005011986B4 (de)	2007-07-19	Bogenoffset-Druckmaschine mit Wascheinheit für den Gegendruckzylinder
DE10038166C2 (de)	2003-08-21	Tampondruckmaschine
DE69616395T2 (de)	2002-07-11	Farbstrahldrucker mit Instandsetzungsstelle
DE19624442A1 (de)	1998-01-08	Herstellungsverfahren für Druckgut mittels einer Durch- oder Siebdruckmaschine

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