EP1500499A1 - Verfahren und Vorrichtung zur Messung und Regelung der Konzentrationen von chemischen Verbindungen in Prozessflüssigkeiten beim Offsetdruck - Google Patents
Verfahren und Vorrichtung zur Messung und Regelung der Konzentrationen von chemischen Verbindungen in Prozessflüssigkeiten beim Offsetdruck Download PDFInfo
- Publication number
- EP1500499A1 EP1500499A1 EP04017479A EP04017479A EP1500499A1 EP 1500499 A1 EP1500499 A1 EP 1500499A1 EP 04017479 A EP04017479 A EP 04017479A EP 04017479 A EP04017479 A EP 04017479A EP 1500499 A1 EP1500499 A1 EP 1500499A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- individual
- components
- chemical components
- concentrations
- groups
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 66
- 239000000126 substance Substances 0.000 title claims abstract description 54
- 230000008569 process Effects 0.000 title claims abstract description 45
- 238000007645 offset printing Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 title claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000654 additive Substances 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 15
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000007639 printing Methods 0.000 description 36
- 230000000996 additive effect Effects 0.000 description 25
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 14
- 239000002904 solvent Substances 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 5
- 238000009472 formulation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/20—Details
- B41F7/24—Damping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0054—Devices for controlling dampening
Definitions
- the respective printing plate by a so-called dampening unit with an aqueous liquid wetted to achieve that in a subsequent Process step, the image areas accept the color while the non-image areas behave color-repellent.
- the aqueous liquid often exists besides water a mixture with alcohol, mostly isopropanol is used, and a chemical mixture of up to about twenty Substances, which is referred to below as an additive.
- the additive is used in concentrations of 1 to 8% vol., the alcohol of 0.5 to 20% vol. added.
- the concentration of water is between 72% and 98.5% - Vol.
- Using optimized additives becomes the Part completely renounced the alcohol. In this case the additive is also referred to as an alcohol substitute.
- the optimized additive then takes over fully or at least partly the function of isopropanol.
- the additive concentrate as a single chemical formulation consisting of all necessary chemical Ingredients with defined predetermined concentrations exists and its composition from the print application, i.e. Web offset, sheetfed offset or newspaper printing as well as machine type, paper type, color type, to feed into the fountain solution cycle of a printing machine, is an emergency solution that meets the modern requirements High availability of the offset process is not fair.
- the concentrations of alcohol in the dampening water are usually currently between 6% and 20% and facilitate in case of roll and sheet offset the use of so-called film dampening units.
- the prior art consist of several with Rubber compounds and / or metals coated rollers, the rotate in contact with each other with a certain contact pressure and the fountain solution in the form of a film adjustable Transport the layer thickness to the printing plate. This Transport process is due to the addition of isopropanol the resulting reduction in the surface tension favored the liquid film.
- film dampenings according to the prior art are also contactless operating systems, in particular with nozzles operated Spray dampenings or dampeners, the rolls with covers made of plush, used. Because in these cases the Dampening solution transported without continuous liquid film the use of alcohol can be omitted. Also in these embodiments according to the prior art, this is inventive new method of the utmost importance, since It is an optimal composition of chemicals Dampening water allows.
- the process fluid uses dosing devices, volumetrically in the context of a control the two or mix three components under fixed proportions and in the fluid circuit of the printing machine according to the respective consumption, i. according to the removal the liquid through the paper to be printed, feed.
- dosing devices volumetrically in the context of a control the two or mix three components under fixed proportions and in the fluid circuit of the printing machine according to the respective consumption, i. according to the removal the liquid through the paper to be printed, feed.
- systems are in particular conventional Metering pumps in use.
- a big disadvantage of these systems is that neither malfunction of the mixing devices still changes the physical and / or the chemical composition, e.g. as a result of chemical Reactions or absorption or desorption processes through the ink, the paper, through the piping or the machine modules can be detected.
- Especially lead evaporation processes in these classic Dosing procedure for significant concentration errors are especially lead evaporation processes in these classic Dosing procedure for significant concentration errors.
- the aim of the present invention is therefore a method and an apparatus for implementing the method, which is a quantitative, continuous measurement and control the concentrations of the individual components of each Additive or the substitute in a matrix of bis to 20 chemical components without faulty influence by other substances, e.g. in particular by alcohols, Dirt, paint and paper particles, gas bubbles, salts the paper line and others typical for offset printing Impurities, allow.
- the in Fig. 1 in a tank (1) located process fluid (2) becomes circulating pump (3) to the printing press (4) and back to tank (1) via piping (5) in Guided cycle.
- the respective concentrations of chemical Individual components of the additive are from a Measuring system (6) continuously measured.
- the default chemical components K1, K2, K3, .... to Kn are over Pumps (7) and via valves (8) in the process fluid (2) fed in each case Target concentrations of the chemical components K1 to Kn are thereby guaranteed that the measuring system (6) is the actual - Measures concentrations continuously and as part of a Control system replenished so much from the respective component, that the actual value is equal to the predetermined target value.
- the loss of water in the process fluid (2) is balanced via a pipe (9), wherein the filling level (10) via a level - measuring and control system (11) according to the ultrasonic sounder principle or a Method according to the prior art kept constant becomes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Abstract
Description
- Fig.1:
- Das Gesamtsystem bestehend aus Meß- und Regelsystemen, Druckmaschine und Prozeßflüssigkeitskreislauf, wobei die Dosierung der verschiedenen chemischen Komponenten / Komponentengruppen direkt durch das Mess- und Regelgerät erfolgt.
- Fig. 2:
- Eine alternative Ausbildung der Erfindung, wobei die Dosierung über eine Venturi - Düse stattfindet.
- Fig. 3:
- Eine alternative Ausbildung der Erfindung , die dadurch gekennzeichnet ist, dass die chemischen Einzelkomponenten über einen statischen Mischer geführt werden.
- Fig. 4:
- Eine weitere Systemvariante, bei welcher eine Voranmischung in einem separaten Behälter stattfindet, welcher mit dem Gesamtsystem verbunden ist, wobei die Zusammensetzung dem optimalen Mischungsverhältnis entspricht.
- Fig. 5:
- System , bei welchem die optimale Zusammensetzung über kalibrierte Dosierpumpen erfolgt.
Claims (16)
- Verfahren zur direkten, selektiven Messung und Regelung der Konzentrationen der chemischen Einzelkomponenten von chemischen Additiven bzw. von Alkohol - Ersatzstoffen in Prozeßflüssigkeiten beim Offsetdruck, dadurch gekennzeichnet, dass die Konzentrationen der chemischen Einzelkomponenten oder Gruppen derselben kontinuierlich gemessen werden und dass eine Nachdosierung der Einzelkomponenten / Gruppen auf die jeweiligen Sollwerte vorgenommen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass sich die verschiedenen chemischen Komponenten in einzelnen Behältern befinden und die Nachdosierung über ein Messsystem erfolgt, welches die Konzentrationen der Einzelkomponenten oder von Gruppen derselben kontinuierlich mißt und die Nachdosierung der Einzelkomponenten über eine Regelschleife vornimmt
- Verfahren nach Anspruch 1 bis 2, dadurch gekennzeichnet, dass die Nachdosierung der chemischen Einzelkomponenten / Gruppen aus den Einzelbehältern über Pumpen erfolgt, die mit je einem Ventil in Serie geschaltet sind.
- Verfahren nach Anspruch 1 bis 2, dadurch gekennzeichnet, dass die Ansaugung der Einzelkomponenten / Gruppen in den Feuchtwasserkreislauf mit einer Bernouilli - Düse erfolgt.
- Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Durchmischung von Feuchtwasser und Einzelkomponenten / Gruppen durch einen statischen Mischer optimiert wird.
- Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die chemischen Einzelkomponenten / Gruppen in einem Vormischbehälter mit Wasser vorgemischt werden und dass der Flüssigkeitsinhalt des Vormischbehälters in den Feuchtwasserbehälter überführt wird.
- Verfahren nach Anspruch 1 bis 2, dadurch gekennzeichnet, dass die chemischen Einzelkomponenten / Gruppen aus jedem Behälter über jeweils eine Pumpe, denen ein gemeinsames Ventil vorgeschaltet ist, dosiert werden.
- Vorrichtung zur Messung und Regelung der Konzentrationen von chemischen Einzel-Komponenten in Prozessflüssigkeiten beim Offsetdruck, dadurch gekennzeichnet, dass die Prozessflüssigkei (2) von einem Messsystem (6) bezüglich der Konzentrationen der Einzelkomponenten kontinuierlich überwacht wird, dass die chemischen Einzelkomponenten K1 bis Kn über Pumpen (7) nachgespeist werden, so dass zu jedem Zeitpunkt die Konzentrationen gleich den Soll - Konzentrationen sind.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass als Pumpe eine Bernouilli - Düse (21) verwendet wird, welche durch einen Teilstrom des Feuchtwassers (18) betrieben und das durch eine Pumpe (22) umgewälzt wird.
- Vorrichtung nach Anspruch 8 und 9, dadurch gekennzeichnet, dass die chemischen Komponenten K1 bis Kn durch einen statischen Mischer (35) mit dem Feuchtwasser (29) in einem Kreislauf (39), der durch eine Pumpe (38) angetrieben wird, homogen miteinander vermischt werden.
- Vorrichtung nach Anspruch 8 und 9, dadurch gekennzeichnet, dass die chemischen Einzelkomponenten K1 bis Kn in einem Vormischbehälter (40) mit Wasser aus einer Wasserleitung (41) über Pumpen (50 a) angesetzt werden und das Gemisch (47) anschließend dem Hauptbehälter (44) zugeführt wird.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die chemischen Einzel- koponenten K1 bis Kn über jeweils eine Pumpe (53), welcher ein Ventil (54) vorgeschaltet ist, in das Feuchtwasser (58) dosiert werden.
- Vorrichtung nach Anspruch 8 bis 12, dadurch gekennzeichnet, dass eine zweite Mess- und Regeleinheit (12), welche die Konzentration von Alkohol im Feuchtwasser (2,18,29,44,58) kontinuierlich mißt und den verbrauchten Alkohol aus einem Alkohol -reservoir (13) über eine Pumpe (14) mit vorgeschaltetem Ventil nachdosiert, vorgesehen ist.
- Vorrichtung nach Anspruch 8 bis 14, dadurch gekennzeichnet, dass der Füllstand (10, 27) mit einem Sensor (11, 28, 33, 48, 55) detektiert wird und dass die Füllhöhe durch eine Regelschleife konstant gehalten wird.
- Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass als Füllstandssensor (11,28,33,48,55) eine Ultraschalleinheit verwendet wird, die nach dem Echolot - Prinzip arbeitet.
- Vorrichtung nach Anspruch 8 bis 15, dadurch gekennzeichnet, dass das Feuchtwasser (2, 18, 29, 44, 58) durch Rührwerke ( 15, 26, 31, 39, 46, 58) homogenisiert wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10333625 | 2003-07-24 | ||
DE10333625A DE10333625B4 (de) | 2003-07-24 | 2003-07-24 | Verfahren und Vorrichtung zur Messung und Regelung der Konzentration von chemischen Verbindungen im Feuchtwasser beim Offsetdruck |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1500499A1 true EP1500499A1 (de) | 2005-01-26 |
EP1500499B1 EP1500499B1 (de) | 2016-01-20 |
EP1500499B2 EP1500499B2 (de) | 2023-11-22 |
Family
ID=33483038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04017479.9A Active EP1500499B2 (de) | 2003-07-24 | 2004-07-23 | Verfahren und Vorrichtung zur Messung und Regelung der Konzentrationen von chemischen Verbindungen in Prozessflüssigkeiten beim Offsetdruck |
Country Status (3)
Country | Link |
---|---|
US (1) | US20050061188A1 (de) |
EP (1) | EP1500499B2 (de) |
DE (1) | DE10333625B4 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1897688A2 (de) | 2006-09-07 | 2008-03-12 | Technotrans AG | Anlage zur Feuchtmittelaufbereitung für den Offset-Druck |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005003372B4 (de) | 2005-01-24 | 2024-04-18 | Gunther Krieg | Verfahren und Vorrichtung zum Regeln der Konzentration von Komponenten von Additiven in einer Druck- Prozessflüssigkeit |
DE102005042299A1 (de) * | 2005-09-06 | 2007-03-08 | Baldwin Germany Gmbh | Druckmaschinenreinigungsvorrichtung |
DE102005042298A1 (de) * | 2005-09-06 | 2007-03-08 | Baldwin Germany Gmbh | Reinigungsflüssigkeitsversorgungsvorrichtung für eine Druckmaschinenreinigungsvorrichtung und Messverfahren |
DE102006024789A1 (de) * | 2006-05-27 | 2007-11-29 | Man Roland Druckmaschinen Ag | Druckmaschine |
DE102007034973A1 (de) * | 2007-07-26 | 2009-01-29 | Technotrans Ag | Kontinuierliche Füllstandsüberwachung und Feuchtmittelzulauf |
CN105690978A (zh) * | 2016-01-24 | 2016-06-22 | 东莞华南印刷有限公司 | 全自动水斗液环保配料系统 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149384A (en) * | 1983-11-11 | 1985-06-12 | Polygraph Leipzig | Liquid preparation apparatus |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2017867A (en) * | 1930-02-05 | 1935-10-22 | Merle E Nantz | Mixing device |
US4403866A (en) * | 1982-05-07 | 1983-09-13 | E. I. Du Pont De Nemours And Company | Process for making paints |
US4571092A (en) * | 1984-09-06 | 1986-02-18 | Ryco Graphic Manufacturing, Inc. | Liquid mixing system |
US4864925A (en) * | 1987-09-28 | 1989-09-12 | Rockwell International Corporation | Simplified lithography using ink and water admixtures |
JPH04327940A (ja) * | 1991-04-26 | 1992-11-17 | Toyo Ink Mfg Co Ltd | 平版印刷用湿し水濃度の制御方法 |
DE4324141A1 (de) * | 1993-07-19 | 1995-03-16 | Krieg Gunther | Verfahren und Vorrichtung zur kontinuierlichen, präzisen und zuverlässigen Bestimmung und Steuerung des Isopropanol - Gehaltes in Feuchtmitteln in Druckmaschinen |
DE19546971A1 (de) * | 1995-12-15 | 1997-06-19 | Baldwin Gegenheimer Gmbh | Vorrichtung einer Druckmaschine |
US5713062A (en) * | 1996-09-26 | 1998-01-27 | Xerox Corporation | Color mixing and control system for use in an electrostatographic printing machine |
JP3843584B2 (ja) * | 1998-03-20 | 2006-11-08 | 大日本インキ化学工業株式会社 | 感熱性組成物およびそれを用いた平版印刷版原版および印刷刷版作製方法 |
US6947175B1 (en) * | 2000-07-31 | 2005-09-20 | Xerox Corporation | Method and system for adjusting color mixing due to substrate characteristics |
US6917424B2 (en) * | 2001-03-19 | 2005-07-12 | E. I. Du Pont De Nemours And Company | Process for manufacturing pigment dispersions |
US6575096B1 (en) * | 2001-11-07 | 2003-06-10 | Xerox Corporation | Computer controlled mixing of customer-selected color inks for printing machines |
US6682865B2 (en) * | 2001-11-21 | 2004-01-27 | Xerox Corporation | Hybrid electrophotographic apparatus for custom color printing |
DE102005003372B4 (de) * | 2005-01-24 | 2024-04-18 | Gunther Krieg | Verfahren und Vorrichtung zum Regeln der Konzentration von Komponenten von Additiven in einer Druck- Prozessflüssigkeit |
-
2003
- 2003-07-24 DE DE10333625A patent/DE10333625B4/de not_active Expired - Lifetime
-
2004
- 2004-07-21 US US10/895,388 patent/US20050061188A1/en not_active Abandoned
- 2004-07-23 EP EP04017479.9A patent/EP1500499B2/de active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149384A (en) * | 1983-11-11 | 1985-06-12 | Polygraph Leipzig | Liquid preparation apparatus |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0171, no. 68 (M - 1391) 31 March 1993 (1993-03-31) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1897688A2 (de) | 2006-09-07 | 2008-03-12 | Technotrans AG | Anlage zur Feuchtmittelaufbereitung für den Offset-Druck |
EP1897688A3 (de) * | 2006-09-07 | 2009-10-28 | Technotrans AG | Anlage zur Feuchtmittelaufbereitung für den Offset-Druck |
US8117962B2 (en) | 2006-09-07 | 2012-02-21 | Technotrans Ag | Equipment for preparing dampening solutions for offset printing |
Also Published As
Publication number | Publication date |
---|---|
DE10333625B4 (de) | 2009-04-02 |
DE10333625A1 (de) | 2005-02-24 |
US20050061188A1 (en) | 2005-03-24 |
EP1500499B1 (de) | 2016-01-20 |
EP1500499B2 (de) | 2023-11-22 |
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