WO2003020522A1 - Trocknungssystem zur strahlungstrocknung - Google Patents
Trocknungssystem zur strahlungstrocknung Download PDFInfo
- Publication number
- WO2003020522A1 WO2003020522A1 PCT/EP2002/009564 EP0209564W WO03020522A1 WO 2003020522 A1 WO2003020522 A1 WO 2003020522A1 EP 0209564 W EP0209564 W EP 0209564W WO 03020522 A1 WO03020522 A1 WO 03020522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drying
- radiation
- drying system
- cylinder
- sheet
- Prior art date
Links
- 238000001035 drying Methods 0.000 title claims abstract description 69
- 230000005855 radiation Effects 0.000 claims abstract description 36
- 238000007639 printing Methods 0.000 claims abstract description 25
- 239000011261 inert gas Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000004922 lacquer Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 239000000975 dye Substances 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- 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
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0403—Drying webs
- B41F23/0406—Drying webs by radiation
- B41F23/0409—Ultraviolet dryers
Definitions
- dryers are arranged between the printing units or in the delivery.
- Photoinitiators with the oxygen contained in the air e.g. to be largely avoided in the form of disruptive oxidations.
- an inert gas atmosphere is created and maintained in the drying zone.
- the atmospheric oxygen is displaced by the inert gas, which is not reactive with the photoinitiators. This enables the use of smaller amounts of comparatively expensive photoinitiators with low lamp output and helps to reduce the formation of ozone and the heating of the substrate and the machine. This allows the heater output to be reduced and less heat to be introduced into the machine.
- the inerting chamber is sealed both laterally and in the area of the inlet and outlet gap to the sheet-guiding cylinder, for which purpose sealing strips which are adjustable at the gripper points and are spaced apart from the cylinder are provided in the area of the inlet and outlet gap.
- the disadvantage of this solution is that the sheet that is positively guided on its leading edge lifts off from the sheet-guiding cylinder in the area of the trailing edge depending on the bending stiffness and peripheral speed, and there may be signs of smearing on parts of the inerting device. If, to counteract this, a large distance between the sealing strips and the cylinder is set, this has a disadvantageous influence on the degree of inertization that can be achieved in the inerting space.
- the publication DE 198 57 984 AI discloses a dryer working with excimer emitters for drying and / or curing lacquers and / or inks on sheets in printing machines.
- the excimer radiator and at least one inert gas blower are surrounded by a bell, the bell being sealed on both sides to the sheet-guiding cylinder and to at least one further cylinder.
- a disadvantage of the aforementioned solution is that the blanket cylinder adjacent to the printing cylinder is exposed to the drying radiation and additional areas to be sealed are created on both sides of the adjacent cylinder. Under the influence of the radiation emitted by the UV excimer emitters mentioned, there are changes in the physical properties of the rubber blanket, which leads to its premature wear.
- the present invention is based on the consideration that the
- the most effective way to reduce inert gas consumption is to shorten the amount to be sealed Side lengths of the inerting area and a reduction in the distance between moving cylinders and immovable elements of the inerting area to be sealed against them can be reduced.
- the inlet area of the inerting chamber is designed so that it comes as close as possible to the gap between the sheet-guiding cylinder and the upstream cylinder. This has the advantage that a small sealing gap can be set in the inlet zone.
- the compact design of the drying system proves to be a further advantage in view of the spatial conditions between the printing units of common printing presses.
- the modular design of the radiator unit and inerting unit further simplifies the handling of the dryer system, particularly when the printing press is being converted.
- FIG. 1 shows in FIG. 1 the side view of the drying system for radiation drying in the installed position with the sheet-guiding cylinder and the blanket cylinder.
- the inerting chamber 6 is formed by the inlet element 8, the base body 7 and the outlet element 9. It is designed in the form of a hood which is sealed on all sides and, together with the adjacent machine elements, forms a gas space which is largely closed off from the surroundings.
- the inlet element 8 is constructed in such a way that it projects as far as possible into the gap area between the cylinder 5 leading between the sheet-guiding cylinder 4 and the adjacent cylinder 5, viewed in the paper running direction, upstream of the drying system.
- a rubber blanket cylinder forms the upstream cylinder 5 in the exemplary embodiment. Between the surface of the sheet-guiding cylinder 4 and the
- Inlet element 8 arranged seal remains a gap. This is chosen That the trailing edge of the printed sheet, which pops up after leaving the printing nip in the case of thick printing materials, can pass through the seal unimpeded when it enters the inerting chamber 6.
- the inlet element 8 is shaped such that it shields the surface of the upstream cylinder 5 from the dryer radiation.
- the seal on the inlet element 8 is designed to be adjustable, so that the width of the gap that is created can be changed.
- the nozzle system is located inside the inerting chamber 6. This is connected to a central inert gas supply via supply lines provided with couplings. Nitrogen is used as the inert gas, which is blown with excess pressure via the nozzle system into the interior of the inerting chamber 6 and displaces the oxygen-containing air there.
- the nozzle system can consist of one or more rows of nozzles or individual nozzles (first row 11, second row 12, slot nozzle 13).
- the rows of nozzles 11 and 12 are formed from slot or point nozzles arranged side by side in the cylinder axis direction. If appropriate sizes are available, it is also possible to use a continuous slot nozzle instead of several slot nozzles arranged side by side.
- Slit nozzle 13 shown in side view.
- the first row of nozzles 11 is formed from point nozzles arranged next to one another.
- the second row of nozzles 12 form two slot nozzles arranged side by side in the cylinder direction.
- the slot nozzle 13 is a continuous nozzle.
- the first row of nozzles 11 is oriented at right angles to the lateral surface of the sheet-guiding cylinder 4 with respect to the direction of the inert gas outlet.
- the Slot nozzle 13 is aligned so that the inert gas emerges at an angle of 77.7 ° to the lateral surface of the sheet-guiding cylinder 4 and in the opposite direction to the direction of rotation 15 of the sheet-guiding cylinder 4. All nozzles of the nozzle system are arranged outside the radiation area so that the beam path is not affected.
- Additional sealing elements between the rows of nozzles can also be used to divide the interior of the inerting chamber 6 into smaller chambers in which, starting from the seal on the inlet element 8, a gradual inerting takes place.
- the division of the interior into a prechamber provided with point nozzles and a main chamber, on the inlet side of which a slotted nozzle is arranged, is favorable.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drying Of Solid Materials (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10141755A DE10141755B4 (de) | 2000-08-29 | 2001-08-29 | Trocknungsvorrichtung zur Strahlungstrocknung |
DE10141755.1 | 2001-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003020522A1 true WO2003020522A1 (de) | 2003-03-13 |
Family
ID=7696637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/009564 WO2003020522A1 (de) | 2001-08-29 | 2002-08-27 | Trocknungssystem zur strahlungstrocknung |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2003020522A1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1743767A3 (de) * | 2005-07-14 | 2010-11-10 | Komori Corporation | Druck-/Beschichtungsmaschine |
DE102015212762A1 (de) * | 2015-07-08 | 2017-01-12 | Koenig & Bauer Ag | Trockenvorrichtung |
ITUB20155248A1 (it) * | 2015-11-03 | 2017-05-03 | Uv Ray S R L | Dispositivo per la polimerizzazione di inchiostri e/o vernici in atmosfera inerte |
WO2017077460A1 (en) * | 2015-11-03 | 2017-05-11 | Uv Ray S.R.L. | Device for the polymerization of inks and/or paints in an inert atmosphere |
WO2020108864A1 (de) * | 2018-11-29 | 2020-06-04 | Koenig & Bauer Ag | Trocknungseinheit zum trocknen bedruckter substrate |
CN112519408A (zh) * | 2019-09-17 | 2021-03-19 | 海德堡印刷机械股份公司 | 用于硬化在承印材料上的油墨的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996034700A1 (de) * | 1995-05-04 | 1996-11-07 | Nölle Gmbh | Verfahren und vorrichtung zum härten einer schicht auf einem substrat |
DE29707190U1 (de) | 1997-04-22 | 1997-09-25 | Sächsisches Institut für die Druckindustrie GmbH, 04439 Engelsdorf | Einrichtung zur Inertisierung an Druckmaschinen |
DE19857984A1 (de) | 1998-12-16 | 2000-06-21 | Koenig & Bauer Ag | Mit Excimer-Strahlern arbeitender Trockner in Bogendruckmaschinen |
-
2002
- 2002-08-27 WO PCT/EP2002/009564 patent/WO2003020522A1/de not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996034700A1 (de) * | 1995-05-04 | 1996-11-07 | Nölle Gmbh | Verfahren und vorrichtung zum härten einer schicht auf einem substrat |
DE29707190U1 (de) | 1997-04-22 | 1997-09-25 | Sächsisches Institut für die Druckindustrie GmbH, 04439 Engelsdorf | Einrichtung zur Inertisierung an Druckmaschinen |
DE19857984A1 (de) | 1998-12-16 | 2000-06-21 | Koenig & Bauer Ag | Mit Excimer-Strahlern arbeitender Trockner in Bogendruckmaschinen |
Non-Patent Citations (1)
Title |
---|
BOLTE G: "UV-TECHNOLOGIE IM DRUCKPROZESS (TEIL 1) SAUERSTOFF-REDUKTION HILFT DIE UV-HAERTUNG ZU OPTIMIEREN", DEUTSCHER DRUCKER, DEUTSCHER DRUCKER VERLAGSGESELLSCHAFT, OSTFILDERN, DE, vol. 37, no. 1/2, 4 January 2001 (2001-01-04), pages 68 - 69, XP000998953, ISSN: 0012-1096 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1743767A3 (de) * | 2005-07-14 | 2010-11-10 | Komori Corporation | Druck-/Beschichtungsmaschine |
DE102015212762A1 (de) * | 2015-07-08 | 2017-01-12 | Koenig & Bauer Ag | Trockenvorrichtung |
DE102015212762B4 (de) | 2015-07-08 | 2019-06-19 | Koenig & Bauer Ag | Trockenvorrichtung |
ITUB20155248A1 (it) * | 2015-11-03 | 2017-05-03 | Uv Ray S R L | Dispositivo per la polimerizzazione di inchiostri e/o vernici in atmosfera inerte |
WO2017077460A1 (en) * | 2015-11-03 | 2017-05-11 | Uv Ray S.R.L. | Device for the polymerization of inks and/or paints in an inert atmosphere |
WO2020108864A1 (de) * | 2018-11-29 | 2020-06-04 | Koenig & Bauer Ag | Trocknungseinheit zum trocknen bedruckter substrate |
CN112703113A (zh) * | 2018-11-29 | 2021-04-23 | 柯尼格及包尔公开股份有限公司 | 用于干燥印刷基材的干燥单元 |
JP2021526991A (ja) * | 2018-11-29 | 2021-10-11 | ケーニヒ アンド バウアー アクツィエンゲゼルシャフトKoenig & Bauer AG | 印刷された基材を乾燥するための乾燥ユニット |
US11220101B2 (en) | 2018-11-29 | 2022-01-11 | Koenig & Bauer Ag | Drying unit for drying printed substrates |
JP7029023B2 (ja) | 2018-11-29 | 2022-03-02 | ケーニヒ アンド バウアー アクツィエンゲゼルシャフト | 印刷された基材を乾燥するための乾燥ユニット |
CN112703113B (zh) * | 2018-11-29 | 2022-03-22 | 柯尼格及包尔公开股份有限公司 | 用于干燥印刷基材的干燥单元 |
CN112519408A (zh) * | 2019-09-17 | 2021-03-19 | 海德堡印刷机械股份公司 | 用于硬化在承印材料上的油墨的方法 |
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