EP1003638B1 - Method and device for supplying ink - Google Patents
Method and device for supplying ink Download PDFInfo
- Publication number
- EP1003638B1 EP1003638B1 EP99939342A EP99939342A EP1003638B1 EP 1003638 B1 EP1003638 B1 EP 1003638B1 EP 99939342 A EP99939342 A EP 99939342A EP 99939342 A EP99939342 A EP 99939342A EP 1003638 B1 EP1003638 B1 EP 1003638B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- feed
- feed according
- ductor roller
- equipment
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/022—Ink level control devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
Definitions
- the invention relates to a method and a device for the ink supply of pasty printing inks on printing machines.
- ink feeds on printing presses known (DE-PS 30 30 774), the ink fountain, a duct roller and a plurality of successive along the duct roller, one Contain variable dosing elements forming color gap on the bottom of the ink fountain.
- the pasty printing ink is in the ink box underside including ink metering elements and duct roller formed, open, wedge-shaped ink reservoir.
- the disadvantage of this ink supply is that the ink supply space is very large and therefore different Difficulty changing colors or cleaning. Furthermore, the dosage the amount of ink zones only possible via the ink metering elements.
- a short inking unit with a color metering device is known from DE 38 18 339 A1.
- the Ink metering device consists of a metering system and a pre-metering system.
- the pre-metering system is a conventional ink fountain dosing system.
- the dosing system consists of a Anilox roller against which a doctor is employed for the purpose of metering.
- the anilox roller will contacted by the inking roller of the ink fountain metering system, so that there are two ink supply spaces form. On the one hand, this is the interior of the ink fountain and, on the other hand, a paint storage space between the anilox roller and the ink feed roller.
- Through the gap between the The inking roller and the anilox roller are pre-metered, while the doctor blade finely doses performs. The ink retained by the squeegee is fed back into the ink fountain.
- the object of the invention is to provide a method and a device for ink supply with improved dosage and little cleaning effort.
- the inventive method is on the devices shown in Figures 1 and 2 applicable for ink supply.
- a ink fountain 1 in a known open design is assigned a duct roller 2 and Ink fountain contains a plurality of, one after the other, along the duct roller 2 variable color gap forming color metering elements 3 on the underside of the ink fountain 1 (Fig. 1).
- a color metering element 3 is usually assigned to each color zone.
- the ink fountain 1 is designed as an open ink fountain and contains only one Minimum amount of color 4.
- the minimum amount of color means the amount of color that on the function of the ink supply, i.e. for wetting the duct roller and for maintenance a defined hydrodynamic pressure in the ink fountain, is absolutely necessary.
- the surface 5 of the minimum amount of color 4 is assigned a level controller 6, which Fill level or the level of the minimum color quantity 4 is If the specified minimum color level is exceeded, corresponding control steps - increase or decrease the minimum color quantity - initiates or generates warning messages.
- the duct roller 2 is at least one feed system 7 for the amount of consumable ink 8 assigned.
- Consumption color quantity 8 is understood to mean the quantity of color that is used to color the Printing form is necessary for the respective print job, i.e. the amount of consumable ink supplied 8 corresponds to the amount of ink in the inking of the printing form and ultimately is used when applying ink to the substrate.
- a feed system 7 is assigned to each ink zone group.
- a single feed system 7 is traversing according to an embodiment, not shown arranged along the duct roller 2, the level controller 6 expediently is assigned to only one traversing feed system 7.
- the feed system 7 and / or the level controller 6 is advantageously a known one assigned traversing color stirring system.
- Each feed system 7 is connected to a paint supply system, not shown and contains a dosing unit 9 and a pressure switch unit 10.
- the dosing unit is control technology with a device, not shown, for entering Inking unit setting values that are adequate for ink consumption.
- the inking unit settings can usually be made using a known printing plate reader (Scanner) determined or obtained from prepress data (CIP3) or from experience become.
- Scanner printing plate reader
- CIP3 prepress data
- the control of the amount of consumable ink 8 is also via the level query
- Minimum amount of color - increased minimum amount of color means that the amount of consumable ink supplied is too large, a reduction in the quantity of consumable ink is therefore necessary or too low minimum color quantity means too little consumption color quantity supplied, so that is an increase in the amount of consumable ink required - possible.
- the paint supply system can be replaced by a paint supply using cartridges.
- the duct roller 2 is a lifter 11 and this is followed by a friction roller 12 of a known inking unit, not shown.
- the lifter 11 which swings back and forth in the printing operation between the doctor roller 2 and the friction roller 12 is brought into constant contact with both the doctor roller and the friction roller in order to increase the reactivity - quick transport of ink after changing the order into the inking unit - and to improve cleaning.
- washing liquid 13 is applied to the duct roller 2 via a washing device 13.
- a device for ink supply is shown in a closed design.
- the minimum amount of color 4 is in a reduced and closed color storage space 16.
- the minimum amount of ink 4 is not monitored by a level controller 6 but by a pressure switch 14 in the ink supply line 15.
Description
Die Erfindung betrifft ein Verfahren und eine Einrichtung zur Farbzufuhr von pastösen Druckfarben an Druckmaschinen.The invention relates to a method and a device for the ink supply of pasty printing inks on printing machines.
Es sind Farbzuführungen an Druckmaschinen bekannt (DE-PS 30 30 774), die einen Farbkasten, eine Duktorwalze und eine Mehrzahl von längs der Duktorwalze aufeinanderfolgenden, einen veränderlichen Farbspalt bildenden Farbdosierelementen an der Farbkastenunterseite enthalten. Die pastöse Druckfarbe wird dabei in den durch Farbkastenunterseite einschließlich Farbdosierelementen und Duktorwalze gebildeten, offenen, keilförmigen Farbvorratsraum eingefüllt. Nachteilig ist bei dieser Farbzuführung, dass der Farbvorratsraum sehr groß ist und sich deshalb Schwierigkeiten beim Farbwechsel bzw. beim Reinigen ergeben. Des Weiteren ist die Dosierung der Farbzonenmenge nur über die Farbdosierelemente möglich.There are ink feeds on printing presses known (DE-PS 30 30 774), the ink fountain, a duct roller and a plurality of successive along the duct roller, one Contain variable dosing elements forming color gap on the bottom of the ink fountain. The pasty printing ink is in the ink box underside including ink metering elements and duct roller formed, open, wedge-shaped ink reservoir. The disadvantage of this ink supply is that the ink supply space is very large and therefore different Difficulty changing colors or cleaning. Furthermore, the dosage the amount of ink zones only possible via the ink metering elements.
Es sind auch Farbzuführeinrichtungen bekannt (DE 43 39 939 C2), bei denen der keilförmige Farbvorratsraum verkleinert und in geschlossener Bauart ausgeführt worden ist. Die Farbzufuhr zu dem verkleinerten und geschlossenen Farbvorratsraum erfolgt unter Druck mittels Farbkartuschen.There are also ink supply devices known (DE 43 39 939 C2) in which the wedge-shaped Color storage space has been reduced and carried out in a closed design. The ink is supplied to the reduced and closed ink supply space under pressure by means of color cartridges.
Auch hier sind die Schwierigkeiten beim Reinigen und bei der Dosierung nicht beseitigt.The difficulties with cleaning and dosing have not been eliminated here either.
Aus der DE 38 18 339 A1 ist ein Kurzfarbwerk mit einer Farbdosiereinrichtung bekannt. Die Farbdosiereinrichtung besteht aus einem Dosiersystem und einem Vordosiersystem. Das Vordosiersystem ist ein konventionelles Farbkastendosiersystem. Das Dosiersystem besteht aus einer Rasterwalze, gegen die zum Zwecke der Dosierung ein Rakel angestellt ist. Die Rasterwalze wird von der Farbauftragwalze des Farbkastendosiersystems kontaktiert, so dass sich zwei Farbvorratsräume bilden. Das ist einmal der Innenraum des Farbkastens und zum anderen ein Farbstauraum zwischen der Rasterwalze und der Farbzuführwalze. Durch den Spalt zwischen der Farbauftragwalze und der Rasterwalze wird vordosiert, während das Rakel die Feindosierung vornimmt. Die vom Rakel zurückgehaltene Farbe wird in den Farbkasten zurückgefördert.A short inking unit with a color metering device is known from DE 38 18 339 A1. The Ink metering device consists of a metering system and a pre-metering system. The pre-metering system is a conventional ink fountain dosing system. The dosing system consists of a Anilox roller against which a doctor is employed for the purpose of metering. The anilox roller will contacted by the inking roller of the ink fountain metering system, so that there are two ink supply spaces form. On the one hand, this is the interior of the ink fountain and, on the other hand, a paint storage space between the anilox roller and the ink feed roller. Through the gap between the The inking roller and the anilox roller are pre-metered, while the doctor blade finely doses performs. The ink retained by the squeegee is fed back into the ink fountain.
Aufgabe der Erfindung ist die Schaffung eines Verfahrens und einer Einrichtung zur Farbzufuhr mit verbesserter Dosierung und geringem Reinigungsaufwand. The object of the invention is to provide a method and a device for ink supply with improved dosage and little cleaning effort.
Erfindungsgemäß wird die Aufgabe durch die Patentansprüche gelöst.According to the invention the object is solved by the claims.
Nachfolgend wird die Erfindung an einem Ausführungsbeispiel näher erläutert. Die Zeichnung zeigt in
- Fig. 1
- eine Einrichtung zur Farbzufuhr in offener Bauart,
- Fig. 2
- eine Einrichtung zur Farbzufuhr in geschlossener Bauart.
- Fig. 1
- a device for ink supply in an open design,
- Fig. 2
- a device for ink supply in a closed design.
Das erfindungsgemäße Verfahren ist an den in den Figuren 1 und 2 dargestellten Einrichtungen zur Farbzufuhr anwendbar. The inventive method is on the devices shown in Figures 1 and 2 applicable for ink supply.
Einem Farbkasten 1 in bekannter offener Bauart ist eine Duktorwalze 2 zugeordnet und der
Farbkasten enthält eine Mehrzahl von längs der Duktorwalze 2 aufeinanderfolgende, einen
veränderlichen Farbspalt bildende Farbdosierelemente 3 an der Unterseite des Farbkastens
1 (Fig. 1).A ink fountain 1 in a known open design is assigned a
Üblicherweise ist jeder Farbzone ein Farbdosierelement 3 zugeordnet.A
Der Farbkasten 1 ist als offener Farbkasten ausgebildet und enthält nur eine
Mindestfarbmenge 4. Unter Mindestfarbmenge wird dabei die Farbmenge verstanden, die
zur Funktion der Farbzufuhr, d.h. zur Benetzung der Duktorwalze und zur Aufrechterhaltung
eines definierten hydrodynamischen Druckes im Farbkasten, unbedingt notwendig ist.The ink fountain 1 is designed as an open ink fountain and contains only one
Minimum amount of
Der Oberfläche 5 der Mindestfarbmenge 4 ist ein Niveauregler 6 zugeordnet, der den
Füllstand bzw. das Niveau der Mindestfarbmenge 4 dedektiert und bei Unter- bzw.
Überschreiten des festgelegten Mindestfarbniveaus entsprechende Steuerschritte - Erhöhen
oder Vermindern der Mindestfarbmenge - einleitet bzw. Warnmeldungen generiert.The
Der Duktorwalze 2 ist mindestens ein Zuführsystem 7 für die Verbrauchsfarbmenge 8
zugeordnet.The
Unter Verbrauchsfarbmenge 8 wird dabei die Farbmenge verstanden, die zum Einfärben der
Druckform für den jeweiligen Druckauftrag notwendig ist, d.h. die zugeführte Verbrauchsfarbmenge
8 entspricht der Farbmenge die bei der Einfärbung der Druckform und letztendlich
beim Farbauftrag auf den Bedruckstoff verbraucht wird.
Zweckmäßigerweise ist jeder längs der Duktorwalze 2 aufeinanderfolgenden Farbzone oder
jeder Farbzonengruppe je ein Zuführsystem 7 zugeordnet.It is expedient for each of the two successive ink zones or along the duct roller
a
Ein einziges Zuführsystem 7 ist nach einer nicht dargestellten Ausführungsart traversierend
längs der Duktorwalze 2 angeordnet, wobei der Niveauregler 6 zweckmäßigerweise dem
einzigen traversierenden Zuführsystem 7 zugeordnet ist.A
Vorteilhafterweise ist das Zuführsystem 7 und/oder der Niveauregler 6 einem bekannten
traversierenden Farbrührsystem zugeordnet.The
Jedes Zuführsystem 7 ist mit einer nicht dargestellten Farbversorgungsanlage verbunden
und enthält eine Dosiereinheit 9 und eine Druckschaltereinheit 10. Die Dosiereinheit ist
steuerungstechnisch mit einer nicht dargestellten Einrichtung zur Eingabe von
Farbwerkeinstellwerten, die den Farbverbrauch adequat sind, verbunden.Each
Die Farbwerkeinstellwerte können üblicherweise über einen bekannten Druckplattenleser
(Scanner) ermittelt oder aus Vorstufendaten (CIP3) oder aus Erfahrungswerten gewonnen
werden. Die Steuerung der Verbrauchsfarbmenge 8 ist auch über die Niveauabfrage der
Mindestfarbmenge - erhöhte Minimalfarbmenge bedeutet zu große zugeführte Verbrauchsfarbmenge,
damit ist eine Verringerung der Verbrauchsfarbmenge erforderlich bzw. zu
geringe Minimalfarbmenge bedeutet zu geringe zugeführte Verbrauchsfarbmenge, damit ist
eine Vergrößerung der Verbrauchsfarbmenge erforderlich - möglich.The inking unit settings can usually be made using a known printing plate reader
(Scanner) determined or obtained from prepress data (CIP3) or from experience
become. The control of the amount of
Es ist auch möglich, daß die Farbversorgungsanlage durch eine Farbversorgung mittels
Kartuschen ersetzt werden kann.
Der Duktorwalze 2 ist ein Heber 11 und diesem eine Reibwalze 12 eines nicht dargestellten
bekannten Farbwerkes nachgeordnet.
Der im Druckbetrieb zwischen Duktorwalze 2 und Reibwalze 12 hin- und herschwingende
Heber 11 wird zur Erhöhung der Reaktionsfähigkeit - schneller Transport von Farbe nach
Auftragwechsel in das Farbwerk - und zur Verbesserung der Reinigung in ständigen
Berührungskontakt sowohl mit der Duktorwalze als auch mit der Reibwalze gebracht.
Zur Reinigung wird auf die Duktorwalze 2 über eine Wascheinrichtung 13 Waschflüssigkeit
aufgebracht.It is also possible that the paint supply system can be replaced by a paint supply using cartridges.
The
The
In Fig. 2 ist eine Einrichtung zur Farbzufuhr in geschlossener Bauart dargestellt.
Die Minimalfarbmenge 4 befindet sich dabei in einem verkleinerten und geschlossenen
Farbvorratsraum 16.
Die Überwachung der Minimalfarbmenge 4 erfolgt dabei nicht durch einen Niveauregler 6
sondern über einen Druckwächter 14 in der Farbzufuhrleitung 15.
Durch die Aufspaltung der Farbmenge in Minimalfarbmenge und Verbrauchsfarbmenge und
die zonenweise Zuführung der Verbrauchsfarbmenge ist eine exaktere Farbdosierung
möglich und der Aufwand zur Reinigung bei Auftragwechsel wird minimiert. In Fig. 2 a device for ink supply is shown in a closed design.
The minimum amount of
The minimum amount of
By splitting the color quantity into the minimum color quantity and the consumption color quantity and the zone-by-zone supply of the consumption color quantity, a more precise color dosage is possible and the effort for cleaning when changing the order is minimized.
- 11
- Farbkastenpaintbox
- 22
- Duktorwalzeduct roller
- 33
- Farbdosierelementink metering element
- 44
- MinimalfarbmengeMinimum amount of ink
- 55
- Oberflächesurface
- 66
- Niveaureglerlevel controller
- 77
- Zuführsystemfeed
- 88th
- VerbrauchsfarbmengeConsumption amount of ink
- 99
- Dosiereinheitdosing
- 1010
- DruckschaltereinheitPressure switch unit
- 1111
- Heberlifter
- 1212
- Reibwalzedistributing roller
- 1313
- Wascheinrichtungwash
- 1414
- Druckwächterpressure switch
- 1515
- FarbzufuhrleitungPaint supply line
- 1616
- FarbvorratsraumColor pantry
Claims (21)
- Method for ink feed of highly viscous printing inks by means of an ink fountain (1), a ductor roller (2) and a plurality of ink metering elements (3), which are disposed in succession along the ductor roller (2) and form a variable ink gap, at the underside of the ink fountain (2), characterised in that the quantity of printing ink is divided into a minimum ink quantity (4) and a use ink quantity (8), the minimum ink quantity (4) is disposed in the ink fountain (1) and the use ink quantity (8) is applied directly to the ductor roller (2).
- Method for ink feed according to claim 1, characterised in that the feed of the use ink quantity (8) is carried out ink zone by ink zone or ink zone group by ink zone group.
- Method for ink feed according to claim 1, characterised in that the feed of the use ink quantity (8) is carried out zone by zone or zone group by zone group in correspondence with the ascertained ink consumption.
- Method for ink feed according to claim 3, characterised in that the ink consumption is ascertained on the basis of inking mechanism set values.
- Method for ink feed according to claim 3, characterised in that the ink consumption is ascertained from plate scanner data.
- Method for ink feed according to claim 3, characterised in that the ink consumption is ascertained from preliminary stage data.
- Method for ink feed according to claim 1, characterised in that the level of the minimum ink quantity (4) is monitored by means of a level regulator (6).
- Method for ink feed according to claim 1, characterised in that the feed of the use ink quantity (8) is concluded at the end of application, the minimum ink quantity (4) is used in manner oriented to objective and washing liquid is fed to the ductor roller (2).
- Method for ink feed according to claim 1, characterised in that the feed of the use ink quantity (8) takes place by way of a metering unit (9) and a pressure switch unit (10) of an ink supply installation.
- Method for ink feed according to claim 1, characterised in that the feed of the use ink quantity (8) takes place by way of a metering unit (3) of an ink cartridge.
- Method for ink feed according to claim 1, characterised in that the minimum ink quantity is contained in the open ink fountain (1).
- Method for ink feed according to claim 1, characterised in that the minimum ink quantity (4) is contained in a closed, reduced ink storage space (16).
- Equipment for ink feed of highly viscous printing inks, comprising an ink fountain (1), a ductor roller (2) and a plurality of ink metering elements (3), which are disposed in succession along the ductor roller (2) and form a variable ink gap at the underside of the ink fountain (2), characterised in that a minimum ink quantity is associated with the ink fountain (1) and at least one feed system (7) for the feed of use ink (8) is associated with the ductor roller (2).
- Equipment for ink feed of highly viscous printing inks according to claim 13, characterised in that a feed system (7) for the feed of use ink (8) is associated with the ductor roller (2) for each ink zone.
- Equipment for ink feed according to claim 13, characterised in that a feed system (7) is arranged in a device traversing along the ductor roller (2).
- Equipment for ink feed according to claim 13, characterised in that a washing device (13) for the feed of washing liquid is associated with the ductor roller (2).
- Equipment for ink feed according to claim 13, characterised in that a level regulator (6) is associated with the surface (5) of the minimum ink quantity (4) disposed in the ink fountain (1).
- Equipment for ink feed according to claim 13, characterised in that a feed system (7) and a level regulator (6) are arranged in a device traversing along the ductor roller (2).
- Equipment for ink feed according to claim 13, characterised in that the traversing device having a feed system (7) and a level regulator (6) is identical with a traversing ink agitating device.
- Equipment for ink feed according to claim 13, characterised in that the feed system (7) for the feed of use ink (8) contains a metering unit (9), which is connected with an ink supply installation, inclusive of a pressure switch unit (10).
- Equipment for ink feed according to claim 13, characterised in that a lifter (11) arranged downstream of the ductor roller (2) and upstream of a friction roller (12) can be brought into contact with the ductor roller (2) and the friction roller (12) in the washing process or intake process.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19826810 | 1998-06-16 | ||
| DE19826810A DE19826810A1 (en) | 1998-06-16 | 1998-06-16 | Method and device for ink supply |
| PCT/DE1999/001763 WO1999065683A1 (en) | 1998-06-16 | 1999-06-12 | Method and device for supplying ink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1003638A1 EP1003638A1 (en) | 2000-05-31 |
| EP1003638B1 true EP1003638B1 (en) | 2002-09-25 |
Family
ID=7871053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99939342A Expired - Lifetime EP1003638B1 (en) | 1998-06-16 | 1999-06-12 | Method and device for supplying ink |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6561099B1 (en) |
| EP (1) | EP1003638B1 (en) |
| DE (2) | DE19826810A1 (en) |
| WO (1) | WO1999065683A1 (en) |
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| JP4163923B2 (en) * | 2002-10-01 | 2008-10-08 | 株式会社小森コーポレーション | Intaglio printing machine |
| DE102009018155A1 (en) * | 2009-04-21 | 2010-11-11 | Technotrans Ag | Car wash for printing press |
| CN106218211A (en) * | 2016-07-20 | 2016-12-14 | 长兴艾飞特科技股份有限公司 | Mimeograph equipment |
| CN107856355A (en) * | 2017-11-22 | 2018-03-30 | 天津市津东华明纸箱厂 | A kind of quick graphic printer of carton |
| DE102019103789A1 (en) * | 2019-02-05 | 2020-08-06 | Koenig & Bauer Ag | Printing unit and printing machine with a printing unit |
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| US6318266B1 (en) | 1995-04-11 | 2001-11-20 | Scitex Corporation Ltd. | Ink flow rate indicator |
| JP3592788B2 (en) * | 1995-04-27 | 2004-11-24 | 三菱重工業株式会社 | How to change ink in flexographic printing press |
| DE19525849A1 (en) * | 1995-07-15 | 1997-01-16 | Heidelberger Druckmasch Ag | Ink fountain for offset or high pressure machines |
| DE19609946B4 (en) | 1996-03-14 | 2005-11-17 | Man Roland Druckmaschinen Ag | Application device for a printing press |
| DE19615156B4 (en) | 1996-04-17 | 2007-12-27 | Man Roland Druckmaschinen Ag | Method for supplying a printing press with color |
| US5682822A (en) * | 1996-07-15 | 1997-11-04 | Sunderman; John R. | Railway car side bearing |
| DE19631301A1 (en) * | 1996-08-02 | 1998-02-05 | Gorter Cornelis | Ink chamber doctor blade for a printing press |
| GB2332879B (en) * | 1996-09-30 | 2001-05-23 | Accel Graphics Systems Inc | Method and apparatus for maintaining ink level in ink fountain of printing press |
| DE19649318A1 (en) * | 1996-11-28 | 1998-06-04 | Heidelberger Druckmasch Ag | Ink fountain for rotary printing machines |
| US6024018A (en) | 1997-04-03 | 2000-02-15 | Intex Israel Technologies Corp., Ltd | On press color control system |
| DE19717727B4 (en) * | 1997-04-26 | 2005-06-23 | Man Roland Druckmaschinen Ag | Inking unit for a rotary printing machine |
| US5967049A (en) * | 1997-05-05 | 1999-10-19 | Quad/Tech, Inc. | Ink key control in a printing press including lateral ink spread, ink saturation, and back-flow compensation |
| US5964757A (en) * | 1997-09-05 | 1999-10-12 | Cordis Webster, Inc. | Steerable direct myocardial revascularization catheter |
| CA2224762A1 (en) * | 1998-01-23 | 1999-07-23 | Bob Erbstein | Variable cutoff press unit |
| US5967050A (en) * | 1998-10-02 | 1999-10-19 | Quad/Tech, Inc. | Markless color control in a printing press |
| US6142078A (en) * | 1998-11-10 | 2000-11-07 | Quad/Tech, Inc. | Adaptive color control system and method for regulating ink utilizing a gain parameter and sensitivity adapter |
-
1998
- 1998-06-16 DE DE19826810A patent/DE19826810A1/en not_active Withdrawn
-
1999
- 1999-06-12 WO PCT/DE1999/001763 patent/WO1999065683A1/en active IP Right Grant
- 1999-06-12 DE DE59902825T patent/DE59902825D1/en not_active Expired - Fee Related
- 1999-06-12 EP EP99939342A patent/EP1003638B1/en not_active Expired - Lifetime
-
2000
- 2000-02-04 US US09/497,976 patent/US6561099B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US6561099B1 (en) | 2003-05-13 |
| DE19826810A1 (en) | 1999-12-23 |
| DE59902825D1 (en) | 2002-10-31 |
| EP1003638A1 (en) | 2000-05-31 |
| WO1999065683A1 (en) | 1999-12-23 |
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