EP0670216A1 - Method for controlling the inking in the production of printed products - Google Patents
Method for controlling the inking in the production of printed products Download PDFInfo
- Publication number
- EP0670216A1 EP0670216A1 EP95102117A EP95102117A EP0670216A1 EP 0670216 A1 EP0670216 A1 EP 0670216A1 EP 95102117 A EP95102117 A EP 95102117A EP 95102117 A EP95102117 A EP 95102117A EP 0670216 A1 EP0670216 A1 EP 0670216A1
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- speed
- printing
- machine
- speed change
- printing machine
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000007639 printing Methods 0.000 claims abstract description 50
- 238000007645 offset printing Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract 4
- 230000001419 dependent effect Effects 0.000 claims abstract 2
- 230000008859 change Effects 0.000 claims description 13
- 238000004040 coloring Methods 0.000 claims description 3
- 230000004075 alteration Effects 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
- B41F31/004—Driving means for ink rollers
Definitions
- the invention relates to a method for controlling the coloring in the production of printed products on printing machines according to the preamble of claim 1.
- the color is controlled by changing the dampening solution and / or ink flow.
- the speed of the dampening or inking ducts in the dampening or inking unit of the printing press is set to a specific value depending on the printing speed.
- Such controls for a dampening or inking unit are known from GB 2 193 926 A and DE 3 832 527 C2.
- the necessity of changing the speed of the ductors when the printing speed changes results from the fact that more dampening solution and ink are consumed at a high printing speed per unit of time.
- the reverse effect can occur if the printing speed is slowly reduced from the production speed to a lower speed, for example to initiate a print interruption for washing the rubber blankets or for changing the stack.
- the balance set at the high printing speed in the inking / dampening unit also has a negative effect.
- a certain number of sheets are slightly over-inked when the printing speed is reduced and, under certain circumstances, can also be over-wet for the paper quality.
- the object of the present invention is therefore to expand a method according to the preamble of claim 1 in such a way that changes in coloration on the printing material which lead to waste can be avoided when the printing speed is changed.
- a sheetfed offset printing machine that, after the command for a speed change has been entered, the speed of the dampening and / or inking device is first ramped up to a value corresponding to the predetermined machine speed after a specific time function and then after a certain number of machine revolutions, the change in printing speed is also carried out according to a predetermined time function.
- the opening widths of the ink metering devices can be changed to a value corresponding to the new machine speed.
- Initiation of the temporal change in speed for the dampening and inking unit as well as initiation of the change in the printing speed is carried out by correspondingly controlling the main drive in relation to a specific position of the lifting gear.
- the method according to the invention is preferably used in sheet-fed offset printing machines and there for controlling the fountain solution or ink supply or in combination.
- the time ramp, after which the printing speed (machine speed) is increased or decreased, is chosen in particular in such a way that the drive torsions which have an adverse effect on the registration quality are as low as possible.
- the method according to the invention is preferably carried out by a suitably programmed control which is operatively connected to the corresponding drive means for supplying the ink and / or fountain solution on the one hand and to the main drive of the printing press on the other.
- the controller also detects the machine speed (printing speed).
- the control then carries out the pre-control of the supply of moisture and / or ink according to the invention whenever an increase or decrease in the printing speed is entered, for example, via the control station of the printing press or via appropriate input means on the printing units.
- the number of machine revolutions M is plotted on the abscissa.
- the ordinate stands in each case for the value of the speed of the machine DM or for the speed value of a ductor DD, the speed value DM of a color ductor being reproduced in the lower diagram, for example.
- the printing press runs at a speed DM of, for example, 5,000 sheets / h. It is assumed that the command to increase the printing speed DM to 10,000 sheets / h is given at time T1. Now the duct speed is raised either from a lower value D5000 to an upper value D10,000 according to a predetermined time function (time ramp) for the purpose of synchronization with the jack. D5000 and D10.000 are to be understood as those duct speed values DD which are to be set at the respective printing speeds.
- the start of the printing speed DM from the start value to the intended end value takes place at a time T2 after a predetermined time function.
- a certain speed increase is carried out per unit of time.
- the printing press thus reaches the intended printing speed DM of 10,000 sheets / h.
- the time functions according to which the increase or decrease in the speed of the printing press DM and the speed of the ductors are to be carried out are also to be determined empirically in printing tests. In particular, it can be provided that the same time functions are used.
- an increase in the printing speed DM was described.
- the procedure for reducing the printing speed DM is exactly the same.
- the printing speed DM is slowed down from a production value, for example, to the basic speed after the corresponding reduction in the number of ductors DD.
- the same but also different time functions or delay values in revolutions of the machine can be used as when the printing speed DM or the ductor speed DD is ramped up. It can also be provided that - in contrast to the described case according to FIG. - the intervals for starting up the printing speed DM and starting up the duct speed DD overlap.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Printing Methods (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Steuerung der Farbgebung bei der Herstellung von Druckerzeugnissen auf Druckmaschinen gemäß dem Oberbegriff von Anspruch 1.The invention relates to a method for controlling the coloring in the production of printed products on printing machines according to the preamble of claim 1.
Bekanntlich erfolgt bei den nach dem Offsetverfahren arbeitenden Druckmaschinen die Steuerung der Farbgebung durch Verändern der Feuchtmittel- und/oder Farbführung. Dazu wird die Drehzahl der Feucht- bzw. Farbduktoren im Feucht- bzw. Farbwerk der Druckmaschine in Abhängigkeit der Druckgeschwindigkeit auf einen bestimmten Wert eingestellt. Derartige Steuerungen für ein Feucht- bzw. ein Farbwerk sind aus der GB 2 193 926 A bzw. der DE 3 832 527 C2 bekannt. Die Notwendigkeit einer Drehzahlveränderung der Duktoren bei Änderung der Druckgeschwindigkeit ergibt sich aus der Tatsache, daß bei einer hohen Druckgeschwindigkeit pro Zeiteinheit mehr Feuchtmittel und Farbe verbraucht wird.As is known, in the printing presses operating according to the offset process, the color is controlled by changing the dampening solution and / or ink flow. For this purpose, the speed of the dampening or inking ducts in the dampening or inking unit of the printing press is set to a specific value depending on the printing speed. Such controls for a dampening or inking unit are known from
Bei Bogenoffsetdruckmaschinen mit Feucht- und Farbwerken der heute weit verbreiteten Art wird immer wieder beobachtet, daß beispielsweise beim Erhöhen der Druckgeschwindigkeit (Maschinendrehzahl) eine bestimmte Zahl von Bogen mit einer zu geringen Färbung hergestellt werden. Je nach Stärke dieses Farbabfalls beim Hochfahren der Druckmaschine sind diese Bogen dann Makulatur. Ein Hochfahren der Druckgeschwindigkeit ist aber nötig, da in der Regel bei einer geringeren Druckgeschwindigkeit ein Abstimmen erfolgt, d.h. die Feucht- und Farbführungsorgane werden so eingestellt, daß das Druckerzeugnis eine größtmögliche Übereinstimmung mit einer Vorlage ergibt.In sheet-fed offset printing presses with dampening and inking units of the type which is widespread today, it is repeatedly observed that, for example, when the printing speed (machine speed) is increased, a certain number of sheets with an inadequate coloring are produced. Depending on the strength of this drop in color when the press is started up, these sheets are then waste. However, it is necessary to increase the printing speed because, as a rule, tuning takes place at a lower printing speed, ie the damping and ink guide elements are set so that the printed product matches the original as closely as possible results.
Genau der umgekehrte Effekt kann eintreten, wenn die Druckgeschwindigkeit von der Produktionsgeschwindigkeit langsam auf eine untere Drehzahl heruntergefahren wird, beispielsweise um eine Druckunterbrechung zum Waschen der Gummitücher oder zum Stapelwechsel einzuleiten. In diesem Falle wirkt sich dann bei der Geschwindigkeitsherabsetzung das bei der hohen Druckgeschwindigkeit im Farb-/Feuchtwerk eingestellte Gleichgewicht ebenso negativ aus. Eine bestimmte Zahl von Bogen wird beim Herunterfahren der Druckgeschwindigkeit leicht überfärbt und unter Umständen auch nachteilig für die Papierqualität überfeuchtet.The reverse effect can occur if the printing speed is slowly reduced from the production speed to a lower speed, for example to initiate a print interruption for washing the rubber blankets or for changing the stack. In this case, when the speed is reduced, the balance set at the high printing speed in the inking / dampening unit also has a negative effect. A certain number of sheets are slightly over-inked when the printing speed is reduced and, under certain circumstances, can also be over-wet for the paper quality.
Aufgabe der vorliegenden Erfindung ist es daher ein Verfahren gemäß dem Oberbegriff von Anspruch 1 derartig zu erweitern, so daß beim Ändern der Druckgeschwindigkeit zur Makulatur führende Färbungsänderungen auf dem Bedruckstoff vermieden werden können.The object of the present invention is therefore to expand a method according to the preamble of claim 1 in such a way that changes in coloration on the printing material which lead to waste can be avoided when the printing speed is changed.
Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale von Anspruch 1. Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.This object is achieved by the characterizing features of claim 1. Further developments of the invention result from the subclaims.
Nach der Erfindung ist bei einer Bogenoffsetdruckmaschine vorgesehen, daß, nachdem das Kommando zu einer Geschwindigkeitsänderung eingegeben worden ist, zunächst die Drehzahl des Feucht- und/oder Farbduktors nach einer bestimmten Zeitfunktion auf einen für die vorgegebene Maschinendrehzahl entsprechenden Wert hochgefahren wird und daß daraufhin nach einer bestimmten Zahl von Maschinenumdrehungen die Veränderung der Druckgeschwindigkeit ebenfalls nach einer vorgegebenen Zeitfunktion durchgeführt wird. Selbstverständlich kann statt einer Erhöhung der Farbduktordrehzahl auch eine Veränderung der Öffnungsweiten der Farbdosierorgane (Farbschieber) auf einen der neuen Maschinendrehzahl entsprechenden Wert erfolgen.According to the invention it is provided in a sheetfed offset printing machine that, after the command for a speed change has been entered, the speed of the dampening and / or inking device is first ramped up to a value corresponding to the predetermined machine speed after a specific time function and then after a certain number of machine revolutions, the change in printing speed is also carried out according to a predetermined time function. Of course, instead of increasing the ink ductor speed, the opening widths of the ink metering devices (ink slides) can be changed to a value corresponding to the new machine speed.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, daß das Einleiten der zeitlichen Drehzahländerung für Feucht- und Farbduktor sowie auch das Einleiten der Veränderung der Druckgeschwindigkeit über entsprechendes Ansteuern des Hauptantriebs jeweils bezogen auf eine bestimmte Stellung des Hebergetriebes erfolgt. Durch diese Maßnahme kann in vorteilhafter Weise vermieden werden, daß die gerade bei hohem Hebertakt stark ausgeprägte diskontinuierliche Farbzufuhr zusätzlich negative Auswirkungen bei einer Änderung der Druckgeschwindigkeit ergeben.According to a development of the invention, it is provided that Initiation of the temporal change in speed for the dampening and inking unit as well as initiation of the change in the printing speed is carried out by correspondingly controlling the main drive in relation to a specific position of the lifting gear. This measure advantageously prevents the discontinuous ink supply, which is particularly pronounced at a high lifter cycle, from additionally having negative effects when the printing speed changes.
Das erfindungsgemäße Verfahren wird bevorzugt bei Bogenoffsetdruckmaschinen und dort zur Steuerung der Feuchtmittel- oder Farbzufuhr oder in Kombination verwendet. Ausgenutzt wird dabei, daß Bogenoffsetdruckmaschinen einen elektrisch geregelten Antrieb haben, bei welchem eine Änderung der Druckgeschwindigkeit nach einer festen, vorgegebenen Zeitfunktion erfolgt. Die Zeitrampe, nach welcher die Druckgeschwindigkeit (Maschinendrehzahl) erhöht bzw. erniedrigt wird, ist insbesondere derartig gewählt, so daß die sich auf die Passerqualität nachteilig auswirkender Antriebstorsionen möglichst gering sind.The method according to the invention is preferably used in sheet-fed offset printing machines and there for controlling the fountain solution or ink supply or in combination. This takes advantage of the fact that sheetfed offset printing presses have an electrically controlled drive, in which the printing speed changes according to a fixed, predetermined time function. The time ramp, after which the printing speed (machine speed) is increased or decreased, is chosen in particular in such a way that the drive torsions which have an adverse effect on the registration quality are as low as possible.
Das erfindungsgemäße Verfahren wird vorzugsweise durch eine entsprechend programmierte Steuerung ausgeführt, welche mit den entsprechenden Antriebsmitteln der Farb- und/oder Feuchtmittelzufuhr einerseits und dem Hauptantrieb der Druckmaschine andererseits in Wirkverbindung steht. Ferner erfaßt die Steuerung die Maschinendrehzahl (Druckgeschwindigkeit). Die Steuerung führt dabei das erfindungsgemäß vorgesehene Vorsteuern der Feucht- und/oder Farbzufuhr immer dann aus, wenn beispielsweise über den Leitstand der Druckmaschine oder über entsprechende Eingabemittel an den Druckwerken eine Erhöhung oder Erniedrigung der Druckgeschwindigkeit eingegeben wird.The method according to the invention is preferably carried out by a suitably programmed control which is operatively connected to the corresponding drive means for supplying the ink and / or fountain solution on the one hand and to the main drive of the printing press on the other. The controller also detects the machine speed (printing speed). The control then carries out the pre-control of the supply of moisture and / or ink according to the invention whenever an increase or decrease in the printing speed is entered, for example, via the control station of the printing press or via appropriate input means on the printing units.
Des weiteren erfolgt die Erläuterung eines Ausführungsbeispiels der Erfindung anhand der einzigen Figur. Diese zeigt die erfindungsgemäß vorgesehene zeitliche Änderung der Drehzahl der Druckmaschine bzw. der Drehzahl eines Duktors gegenüber den Maschinenumdrehungen. Die gewählten Einheiten sind dabei rein prinzipiell zu verstehen.Furthermore, an embodiment of the invention is explained with reference to the single figure. This shows the temporal change in the speed of the printing press provided according to the invention or the speed of a ductor compared to the machine revolutions. The selected units are to be understood in principle.
In den beiden Ablaufdiagrammen der Figur ist jeweils auf der Abszisse die Zahl der Maschinenumdrehungen M aufgetragen. Die Ordinate steht jeweils für den Wert der Drehzahl der Maschine DM bzw. für den Drehzahlwert eines Duktors DD, wobei beispielsweise im unteren Diagramm der Drehzahlwert DM eines Farbduktors wiedergegeben ist.In the two flowcharts of the figure, the number of machine revolutions M is plotted on the abscissa. The ordinate stands in each case for the value of the speed of the machine DM or for the speed value of a ductor DD, the speed value DM of a color ductor being reproduced in the lower diagram, for example.
Bis zu einem Zeitpunkt T1 - bezogen auf die Zahl der Maschinenumdrehungen M - fährt die Druckmaschine eine Drehzahl DM von beispielsweise 5.000 Bogen/h. Es sei angenommen, daß zum Zeitpunkt T1 das Kommando zur Erhöhung der Druckgeschwindigkeit DM auf 10.000 Bogen/h gegeben wird. Nun erfolgt entweder sofort oder - zwecks Synchronisationen auf den Heber - das Hochfahren der Duktordrehzahl von einem unteren Wert D5000 auf einen oberen Wert D10.000 nach einer vorgegebenen Zeitfunktion (Zeitrampe). Unter D5000 bzw. D10.000 sind dabei diejenigen Duktordrehzahlwerte DD zu verstehen, welche bei den jeweiligen Druckgeschwindigkeiten einzustellen sind.Up to a point in time T1 - based on the number of machine revolutions M - the printing press runs at a speed DM of, for example, 5,000 sheets / h. It is assumed that the command to increase the printing speed DM to 10,000 sheets / h is given at time T1. Now the duct speed is raised either from a lower value D5000 to an upper value D10,000 according to a predetermined time function (time ramp) for the purpose of synchronization with the jack. D5000 and D10.000 are to be understood as those duct speed values DD which are to be set at the respective printing speeds.
Nach einer bestimmten, durch Druckversuche oder durch Berechnungen zu bestimmenden Zahl von Maschinenumdrehungen M erfolgt sodann zu einem Zeitpunkt T2 der Beginn des Hochfahrens der Druckgeschwindigkeit DM von dem Startwert auf den vorgesehenen Endwert nach einer vorgegebenen Zeitfunktion. Auch hier wird also eine bestimmte Drehzahlerhöhung pro Zeiteinheit durchgeführt. Zu einem Zeitpunkt T3 reicht somit die Druckmaschine die vorgesehene Druckgeschwindigkeit DM von 10.000 Bogen/h.After a certain number of machine revolutions M to be determined by pressure tests or by calculations, the start of the printing speed DM from the start value to the intended end value takes place at a time T2 after a predetermined time function. Here too, a certain speed increase is carried out per unit of time. At a point in time T3, the printing press thus reaches the intended printing speed DM of 10,000 sheets / h.
Die in diesem Ausführungsbeispiel angegebenen Größenordnungen sind rein prinzipiell zu verstehen, genaue Werte hängen dabei vom jeweiligen Druckmaschinentyp (Farb- und Feuchtwerksgeometrie) sowie weiteren Parametern ab.The orders of magnitude specified in this exemplary embodiment are to be understood purely in principle, exact values depending on the respective printing press type (ink and dampening unit geometry) and further parameters.
Ebenfalls in Druckversuchen empirisch zu bestimmen sind die Zeitfunktionen, nach welchen die Erhöhung bzw. Erniedrigung der Drehzahl der Druckmaschine DM sowie der Drehzahl der Duktoren auszuführen ist. Dabei kann insbesondere vorgesehen sein, daß die gleichen Zeitfunktionen verwendet werden.The time functions according to which the increase or decrease in the speed of the printing press DM and the speed of the ductors are to be carried out are also to be determined empirically in printing tests. In particular, it can be provided that the same time functions are used.
Im erläuterten Ausführungsbeispiel wurde eine Erhöhung der Druckgeschwindigkeit DM beschrieben. In der genau gleichen Weise wird bei einer Verminderung der Druckgeschwindigkeit DM vorgegangen. Auch hier erfolgt das Herunterfahren der Druckgeschwindigkeit DM von einem beispielsweise Produktionswert auf die Grunddrehzahl zeitlich verzögert nach dem entsprechenden Herunterfahren der Duktorzahl DD. Hier können die gleichen aber auch unterschiedliche Zeitfunktionen bzw. Verzögerungswerte in Umdrehungen der Maschine wie beim Hochfahren der Druckgeschwindigkeit DM bzw. der Duktordrehzahl DD verwendet werden. Auch kann vorgesehen sein, daß sich - im Gegensatz zum geschilderten Fall gemäß Figur - die Intervalle des Hochfahrens der Druckgeschwindigkeit DM und des Hochfahrens der Duktordrehzahl DD überlappen.In the exemplary embodiment explained, an increase in the printing speed DM was described. The procedure for reducing the printing speed DM is exactly the same. Here, too, the printing speed DM is slowed down from a production value, for example, to the basic speed after the corresponding reduction in the number of ductors DD. Here, the same but also different time functions or delay values in revolutions of the machine can be used as when the printing speed DM or the ductor speed DD is ramped up. It can also be provided that - in contrast to the described case according to FIG. - the intervals for starting up the printing speed DM and starting up the duct speed DD overlap.
Claims (4)
dadurch gekennzeichnet,
daß nach Eingabe eines eine Drehzahländerung der Druckmaschine bewirkenden Kommandos zunächst die Zufuhrrate des Fluids nach einer bestimmten Zeitfunktion geändert wird, und daß nach einer bestimmten Zahl von Maschinenumdrehungen die Drehzahländerung der Druckmaschine ausgeführt wird.Method for controlling the coloring in the production of printed products on printing presses, in particular on a sheet-fed offset printing press, in which the feed rate of a fluid to be applied to a printing form is dependent on the speed of the printing press,
characterized by
that after input of a command causing a change in the speed of the printing press, the feed rate of the fluid is first changed after a certain time function, and that after a certain number of machine revolutions the speed change of the printing press is carried out.
dadurch gekennzeichnet,
daß bei einer Bogenoffsetdruckmaschine die Veränderung des Drehzahlwertes eines Feuchtduktors zeitlich vor der Drehzahländerung des Hauptantriebes eingeleitet wird.Method according to claim 1,
characterized by
that in a sheetfed offset printing press the change in the speed value of a dampening roller is initiated before the speed change in the main drive.
dadurch gekennzeichnet,
daß bei einer Bogenoffsetdruckmaschine die Drehzahländerung eines Farbduktors zeitlich vor der Drehzahländerung der Druckmaschine eingeleitet wird.The method of claim 1 or 2,
characterized by
that in a sheetfed offset printing machine the speed change of a color ductor is initiated before the speed change of the printing machine.
dadurch gekennzeichnet,
daß die Drehzahländerung des Feucht- und/oder Farbduktors nach einer Zeitfunktion durchgeführt wird, nach welcher auch die Drehzahländerung der Druckmaschine erfolgt.Method according to claim 2 or 3,
characterized by
that the speed change of the dampening and / or ink ducting is carried out according to a time function, after which the speed change of the printing machine also takes place.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4406727A DE4406727C2 (en) | 1994-03-02 | 1994-03-02 | Process for controlling fluid supply in the manufacture of printed matter |
| DE4406727 | 1994-03-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0670216A1 true EP0670216A1 (en) | 1995-09-06 |
| EP0670216B1 EP0670216B1 (en) | 1997-03-26 |
Family
ID=6511560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95102117A Expired - Lifetime EP0670216B1 (en) | 1994-03-02 | 1995-02-16 | Method for controlling the inking in the production of printed products |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0670216B1 (en) |
| JP (1) | JP2693398B2 (en) |
| AT (1) | ATE150700T1 (en) |
| DE (2) | DE4406727C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985512A (en) * | 2017-04-01 | 2017-07-28 | 北京奇良海德印刷股份有限公司 | A kind of ink control method and device of printed matter |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19643252C2 (en) * | 1996-10-19 | 1999-05-20 | Roland Man Druckmasch | Control for the operation of a printing press |
| DE19701219A1 (en) * | 1997-01-16 | 1998-07-23 | Heidelberger Druckmasch Ag | Control of inking when printing with dosing altered depending on printing speed |
| DE19815293A1 (en) | 1998-04-06 | 1999-10-07 | Heidelberger Druckmasch Ag | Printing press and method for operating a printing press |
| DE10106986B4 (en) * | 2001-02-15 | 2008-04-24 | Man Roland Druckmaschinen Ag | Method for starting up an offset rotary printing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2285052A (en) * | 1941-07-11 | 1942-06-02 | Wood Newspaper Mach Corp | Variable fountain ink supply for presses |
| GB2193926A (en) * | 1986-07-24 | 1988-02-24 | Ratby Eng Co Ltd | Inking system in a printing machine |
| DE3832527A1 (en) * | 1987-09-29 | 1989-04-13 | Jpe Kk | Damping system for an offset printing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD216199B1 (en) * | 1983-06-23 | 1989-07-26 | Planeta Veb Druckmasch Werke | METHOD AND DEVICE FOR HUMIDITY PROCESSING |
| DE3611631A1 (en) * | 1986-04-07 | 1987-10-08 | Grapho Metronic Gmbh & Co | Method for minimising inking fluctuations in the prints of offset machines |
-
1994
- 1994-03-02 DE DE4406727A patent/DE4406727C2/en not_active Expired - Fee Related
-
1995
- 1995-02-16 DE DE59500149T patent/DE59500149D1/en not_active Expired - Fee Related
- 1995-02-16 EP EP95102117A patent/EP0670216B1/en not_active Expired - Lifetime
- 1995-02-16 AT AT95102117T patent/ATE150700T1/en not_active IP Right Cessation
- 1995-03-02 JP JP7043264A patent/JP2693398B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2285052A (en) * | 1941-07-11 | 1942-06-02 | Wood Newspaper Mach Corp | Variable fountain ink supply for presses |
| GB2193926A (en) * | 1986-07-24 | 1988-02-24 | Ratby Eng Co Ltd | Inking system in a printing machine |
| DE3832527A1 (en) * | 1987-09-29 | 1989-04-13 | Jpe Kk | Damping system for an offset printing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985512A (en) * | 2017-04-01 | 2017-07-28 | 北京奇良海德印刷股份有限公司 | A kind of ink control method and device of printed matter |
| CN106985512B (en) * | 2017-04-01 | 2019-03-01 | 北京奇良海德印刷股份有限公司 | A kind of ink control method and device of printed matter |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4406727A1 (en) | 1995-09-07 |
| DE59500149D1 (en) | 1997-04-30 |
| DE4406727C2 (en) | 1996-06-20 |
| JPH07256868A (en) | 1995-10-09 |
| JP2693398B2 (en) | 1997-12-24 |
| ATE150700T1 (en) | 1997-04-15 |
| EP0670216B1 (en) | 1997-03-26 |
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