WO2013185741A1 - Digital printing device - Google Patents
Digital printing device Download PDFInfo
- Publication number
- WO2013185741A1 WO2013185741A1 PCT/DE2013/000206 DE2013000206W WO2013185741A1 WO 2013185741 A1 WO2013185741 A1 WO 2013185741A1 DE 2013000206 W DE2013000206 W DE 2013000206W WO 2013185741 A1 WO2013185741 A1 WO 2013185741A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- printing device
- substrate
- bridge
- heat
- printed
- Prior art date
Links
Classifications
-
- 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
- B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
- B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
- B41J11/00216—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using infrared [IR] radiation or microwaves
Definitions
- the invention relates to a digital printing device with an electric heater which heats up a substrate to be printed and which is provided in particular for printing with water-soluble inks.
- Ink jet printers are known and proven in various embodiments. If the inkjet printers used in the office sector only process paper sizes up to DIN A 4, the advertising will use digital printing devices for large formats with a print width of up to 6 meters
- the substrate to be printed a variety of paper types, films, textiles or the like, suitable ink types are used for the printing.
- Pressure devices often equipped with an electric heater, in which a continuous temperature control between the room temperature and about 60 ° C is possible.
- Roller conveyors regularly have three heaters
- Such heaters warm the substrate over its entire width and over a considerable length, regardless of whether printing takes place or not.
- flatbed printing machines are often used for printing on solid parts such as doors, windows, slabs or other thick-walled substations.
- the known heaters are not able to sufficiently heat the substrate from below.
- Printing may be heated to about 55 ° C to 60 ° C, allowing one from a printhead to the surface of the substrate
- the invention has the object to provide a digital printing device with an electric heater available, through the energy efficient surface temperature of a
- printing substrate can be heated up to, for example, 60 ° C for printing with in particular a water-soluble ink.
- the printing device according to the invention has a number of advantages.
- Energy saving compared to conventional methods means in which the substrate must be continuously heated from below to bring the surface to the temperature required for the printing process.
- the bridge provided with the heat radiators is stationary, either pressure-resistant or legged, standing on a floor. Moving parts are avoided and the electrical connections of the radiant heaters are unproblematic, because a fixed wiring can be done.
- Printing device according to the invention are suitable to retrofit existing printing devices.
- Heat radiators are individually switchable. An adaptation of the heating of the surface of a substrate to the width of only one pressure and further independent of the actual one
- Width of the substrate is thereby made possible.
- the heat radiators can be completely switched off when the substrate has larger unprinted areas during a passage in the passage direction.
- Position of the printhead are switchable, so that only in
- the surface of the substrate is heated. Such may still be combined with the function of the printhead, such that only prior to an actual application of the ink, the surface of the substrate is locally heated by a heater disposed in front of the printhead.
- heat radiator may be useful depending on the embodiment of the heat radiator that heat radiator are combined in a modular manner and that then such modules are switched. This is particularly useful when the heat radiator
- Infrared radiators are, for example, infrared LEDs, since such infrared sources exclusively irradiated
- the invention is, of course, to be located in front of the printhead to heat the surface of the substrate according to the specifications of the ink used. Insofar, in
- a first, arranged in front of the printhead bridge serve a preheating of the substrate
- Printhead arranged, the drying of the applied ink.
- a third bridge following the second bridge for post-heating then causes the ink to dry through, in particular in the case where the printing device is a web-fed printing device.
- the printing device according to the invention is based on the
- Fig. 1 a roller printing device in a lateral
- Fig. 2 a section transverse to the direction of passage of a
- Substrate wherein in the left half of the image a bridge is formed pressure device fixed and in the right half of a bridge with legs standing on a ground is shown.
- Figure 1 shows a roll printing device 1, in which a substrate 2 to be printed by a first roller 3 via a table 4 with a guide, not shown for the
- Substrate 2 is peeled off on a second roller 5.
- an indicated printhead 6 is movably arranged.
- the substrate 2 is in its width, perpendicular to the plane, spanned by a bridge 8, which is provided with the substrate 2 heating heat radiators 9, for example with infrared radiators, in particular infrared LEDs.
- heat radiators 9 can be combined in a modular manner, in which case such modules are expediently switchable.
- a second bridge 11 is arranged, which dries behind the print head 6, the ink 7 applied to the substrate 2.
- a third bridge 12 with heat radiators 13 ensures through-drying of this applied ink.
- the bridges 8,11 and 12 may be formed substantially identical, wherein the intensity of the heat output of the bridges 8,11,12 may be different due to the individual wiring of the heat sources.
- the provided with a guide for a substrate 15 to be printed table 16 of a printing device is provided in the left half of the image with a pressure device fixed bridge 17.
- the bridge 17 spans transversely to the direction of passage of the substrate 15, here perpendicular to the plane of the drawing, the entire width of the substrate 15.
- Such an embodiment of the bridge 17 is preferably new
- a bridge 17 is also suitable for retrofitting existing printing devices if they have a sufficiently dimensioned edge 18 parallel to the side edges of the substrate 15 to be printed.
- An alternative is shown in the right half of FIG 2, in which a bridge 19 is provided with specially trained legs 20 which are located on a floor 21st
- Such a solution with legs 20 for a bridge 19 allows due to the individual control of the heat sources of the bridge 19 with a wide bridge bridge 19 wide tables 16 of different pressure devices to span and in particular to retrofit.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013002904.9T DE112013002904A5 (en) | 2012-06-12 | 2013-04-18 | Digital printing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012011457.5 | 2012-06-12 | ||
DE102012011457A DE102012011457A1 (en) | 2012-06-12 | 2012-06-12 | Digital printing device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013185741A1 true WO2013185741A1 (en) | 2013-12-19 |
Family
ID=48576159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2013/000206 WO2013185741A1 (en) | 2012-06-12 | 2013-04-18 | Digital printing device |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102012011457A1 (en) |
WO (1) | WO2013185741A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1336500A2 (en) * | 2002-02-14 | 2003-08-20 | Noritsu Koki Co., Ltd. | Image forming apparatus |
US20070103529A1 (en) * | 2003-06-16 | 2007-05-10 | Kornit Digital Ltd. | Process and system for printing images on absorptive surfaces |
WO2009127261A1 (en) * | 2008-04-18 | 2009-10-22 | Hewlett-Packard Development Company, L.P. | Printing device and control method |
US20100188469A1 (en) * | 2009-01-29 | 2010-07-29 | Seiko Epson Corporation | Recording apparatus |
-
2012
- 2012-06-12 DE DE102012011457A patent/DE102012011457A1/en not_active Withdrawn
-
2013
- 2013-04-18 DE DE112013002904.9T patent/DE112013002904A5/en not_active Withdrawn
- 2013-04-18 WO PCT/DE2013/000206 patent/WO2013185741A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1336500A2 (en) * | 2002-02-14 | 2003-08-20 | Noritsu Koki Co., Ltd. | Image forming apparatus |
US20070103529A1 (en) * | 2003-06-16 | 2007-05-10 | Kornit Digital Ltd. | Process and system for printing images on absorptive surfaces |
WO2009127261A1 (en) * | 2008-04-18 | 2009-10-22 | Hewlett-Packard Development Company, L.P. | Printing device and control method |
US20100188469A1 (en) * | 2009-01-29 | 2010-07-29 | Seiko Epson Corporation | Recording apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE102012011457A1 (en) | 2013-12-12 |
DE112013002904A5 (en) | 2015-03-05 |
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