EP1232862B1 - Method for starting up an offset rotary printing machine - Google Patents

Method for starting up an offset rotary printing machine Download PDF

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Publication number
EP1232862B1
EP1232862B1 EP02002596A EP02002596A EP1232862B1 EP 1232862 B1 EP1232862 B1 EP 1232862B1 EP 02002596 A EP02002596 A EP 02002596A EP 02002596 A EP02002596 A EP 02002596A EP 1232862 B1 EP1232862 B1 EP 1232862B1
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EP
European Patent Office
Prior art keywords
printing
ink
speed
metering device
printing machine
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EP02002596A
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German (de)
French (fr)
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EP1232862A1 (en
Inventor
Reinhard Zeller
Helmut Stuhlmiller
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Manroland AG
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Manroland AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety 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
    • B41F31/045—Remote control of the duct keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/10—Starting-up the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/10—Starting-up the machine
    • B41P2233/11—Pre-inking

Definitions

  • the invention relates to a method for starting an offset rotary printing machine.
  • the inking units of the printing units have a metering device, at the zone-wise, ie distributed over the width of the inking unit or the printing form, passage openings for the ink can be adjusted. It is known that these openings according to the subject of the printing plate, so according to the consumption of the individual ink zones, set. With this setting, a paint run is performed when the inking rollers are off. Such a set color profile is in FIG. 1 hatched shown.
  • the inking rollers are employed on the printing form on which builds up a color layer or a color density s at the printing locations.
  • the structure of the color density is in Fig. 2 represented by the dashed curve as a function of the number of executed prints or copies.
  • the desired layer thickness or color density s F for the production is only in zones of low area coverage after about 1500 copies, which are to be regarded as waste.
  • zones with low ink consumption for example, the zone 1
  • the zone 1 take a long time at the supplied small amount of ink until the desired layer thickness is reached on the printing locations of the printing plate. It will be such.
  • B. Passer and register marks visible only after a long time.
  • the initial abundant supply of ink in one color zone high ink consumption for example in the ink zone 3, over-coloring of the printing surfaces.
  • the EP 0 529 257 B1 stops after an interruption of the printing process, such. B. at the daily new beginning after the blanket washing, at the Farbdosiervoriques an inverse color profile. It is exaggerated much color in a color zone with low color consumption and understated in a color zone with high color consumption fed little color to the inking unit.
  • the inking rollers are employed to additionally allow the subject of the printing form to react.
  • the offset rotary printing press has printing units, each with a color and dampening unit, which wet and ink the printing plate located on the plate cylinder.
  • Each inking unit contains a Farbdosiervorraum for zoning a color profile.
  • the rotational speed of the printing machine is indicated on the ordinate and the copies incurred on the abscissa.
  • the start of the rotary printing machine begins with the so-called loading of the production, which are retrieved from a memory stored data for the machine setting, such as settings of the folder or the strand register.
  • the printing machine is driven at a first speed n1 of the plate cylinder. This is advantageous the retraction speed of about 600 h -1 .
  • the web to be printed has already been fed into the printing press.
  • the dryer for the paper web is now activated, ie, it is started with its preheating.
  • the metering devices of the inking units of the printing units of the offset rotary printing press are furthermore set to an inverse color profile.
  • the metering device is, for example, zone screws for ink zones, into which the inking unit is divided over its width, as already explained in the prior art. With the zone screws, the height f of a printing ink passage gap between a colorimeter and a color ductor can be set for each color zone. The settings of all heights f of the color zones provide a color profile, as in FIG. 1 hatched. For the design of the inverse color profile is assumed by the color profile P F for continuous printing. This is obtained, for example, by scanning the printing plate.
  • the area coverage of the pressure of each zone is determined and from this the percentage opening f of the passage gap of each color zone is determined.
  • the difference to 100% transmission provides the value of the inverse color profile P i of the respective color zone, as in Fig. 1 entered.
  • the inverse set color profile now the purified inking a defined amount of ink is supplied, it is pre-colored.
  • the inking and dampening rollers are offset from the plate cylinder.
  • the film roller is turned off again by the ductor, and it is set on the Farbdosiervoriques the color profile P F for continuous printing.
  • the printing machine is driven to a second speed n2 of about 5000 h -1 and remains at this speed until the dryer release takes place.
  • This is the readiness display of the dryer for the printing, for which z. B. flaps of the dryer are to close.
  • the dryer release already takes place during the process steps carried out at the first rotational speed n1, so that the printing press is immediately accelerated to a third rotational speed n3 of about 16,000 h -1 without being persistent at the second rotational speed n2.
  • the blankets are pre-moistened. This is done at short intervals by means of the blanket washer. The blankets are already in a clean condition. Moistening prevents sticking of the web during later application of the pressure.
  • the color register and the cut register are switched on (armed).
  • the waste gate is set to the "good” position and counting starts (net meter on).
  • the printing press is raised to a fourth speed n4 for the continuous printing, for example, 70000 h -1 .
  • This booting is relatively slow, for example over a period of time 180 seconds, so that the copies printed are salable production and therefore no waste.
  • the waste gate is set to the position "bad" and the counting of the copies is ended (net meter off).
  • the discharge sequence is processed. This includes stopping the printing, switching off the dosing device (film roller off), stopping the inking rollers and parking the dampening rollers.
  • the printing machine is shut down to a fifth speed n5 of about 20,000 h -1 .
  • the inking unit is washed, bringing it into the required "blank" condition for the described startup of the press for a new production. At speed n5, the blankets are washed. Subsequently, the printing press is stopped.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Anfahren einer Offsetrotationsdruckmaschine.The invention relates to a method for starting an offset rotary printing machine.

Beim Anfahren einer Offsetrotationsdruckmaschine, beispielsweise beim Beginn einer neuen Produktion, ist man bestrebt, schnell den Betriebszustand für den Fortdruck zu erreichen, um die Makulatur niedrig zu halten. Hinsichtlich der Zufuhrmenge von Druckfarbe-und Feuchtmittel zur Druckform sind Einstellungen vorzunehmen. Die Farbwerke der Druckwerke besitzen eine Dosiervorrichtung, an der zonenweise, d. h. über die Breite des Farbwerks bzw. der Druckform verteilt, Durchlassöffnungen für die Druckfarbe verstellt werden können. Es ist bekannt diese Öffnungen entsprechend dem Sujet der Druckplatte, also entsprechend dem Verbrauch der einzelnen Farbzonen, einzustellen. Mit dieser Einstellung wird bei abgestellten Farbauftragwalzen ein Farbeinlauf durchgeführt. Ein so eingestelltes Farbprofil ist in Figur 1 schraffiert dargestellt. Im Rahmen des Anstellens des Drucks werden auch die Farbauftragwalzen an die Druckform angestellt, auf der sich an den druckenden Stellen eine Farbschicht bzw. eine Farbdichte s aufbaut. Der Aufbau der Farbdichte ist in Fig. 2 mit der gestrichelt gezeichneten Kurve in Abhängigkeit von der Anzahl ausgeführter Drucke bzw. Exemplare dargestellt. Die gewünschte Schichtdicke bzw. Farbdichte sF für den Fortdruck stellt sich in Zonen geringer Flächendeckung erst nach ca. 1500 Exemplaren ein, die als Makulatur zu werten sind. Bei der beschriebenen Verfahrensweise zum Anfahren der Druckmaschine ist insbesondere nachteilig, dass Zonen mit geringem Farbverbrauch, beispielsweise die Zone 1, bei der zugeführten geringen Farbmenge sehr lange brauchen, bis die gewünschte Schichtdicke auf den druckenden Stellen der Druckform erreicht ist. Es werden so z. B. Passer- und Registermarken erst nach längerem Zeitablauf sichtbar gedruckt. Im Gegensatz dazu führt die anfängliche reichliche Zufuhr von Druckfarbe in einer Farbzone mit hohem Farbverbrauch, beispielsweise in der Farbzone 3, zu einem Überfärben der druckenden Flächen.When starting an offsetting rotary printing press, for example, at the start of a new production, it is anxious to quickly reach the operating state for the production to keep the waste low. With regard to the supply quantity of printing ink and dampening solution to the printing form settings are made. The inking units of the printing units have a metering device, at the zone-wise, ie distributed over the width of the inking unit or the printing form, passage openings for the ink can be adjusted. It is known that these openings according to the subject of the printing plate, so according to the consumption of the individual ink zones, set. With this setting, a paint run is performed when the inking rollers are off. Such a set color profile is in FIG. 1 hatched shown. As part of the job printing and the inking rollers are employed on the printing form on which builds up a color layer or a color density s at the printing locations. The structure of the color density is in Fig. 2 represented by the dashed curve as a function of the number of executed prints or copies. The desired layer thickness or color density s F for the production is only in zones of low area coverage after about 1500 copies, which are to be regarded as waste. In the method described for starting the printing machine is particularly disadvantageous that zones with low ink consumption, for example, the zone 1, take a long time at the supplied small amount of ink until the desired layer thickness is reached on the printing locations of the printing plate. It will be such. B. Passer and register marks visible only after a long time. In contrast, the initial abundant supply of ink in one color zone high ink consumption, for example in the ink zone 3, over-coloring of the printing surfaces.

Die EP 0 529 257 B1 stellt nach einer Unterbrechung des Druckprozesses, wie z. B. beim täglichen Neubeginn nach dem Gummituchwaschen, an der Farbdosiervorrichtung ein inverses Farbprofil ein. Es wird praktisch bei einer Farbzone mit geringem Farbverbrauch übertrieben viel Farbe und bei einer Farbzone mit hohem Farbverbrauch untertrieben wenig Farbe dem Farbwerk zugeführt. Dabei sind die Farbauftragwalzen angestellt, um zusätzlich das Sujet der Druckform rückwirken zu lassen.The EP 0 529 257 B1 stops after an interruption of the printing process, such. B. at the daily new beginning after the blanket washing, at the Farbdosiervorrichtung an inverse color profile. It is exaggerated much color in a color zone with low color consumption and understated in a color zone with high color consumption fed little color to the inking unit. The inking rollers are employed to additionally allow the subject of the printing form to react.

Es ist Aufgabe der Erfindung, ein Verfahren zum Anfahren einer Offsetrotationsdruckmaschine zu schaffen, mit dem der Fortdruckzustand schnell und bei geringem Makulaturanfall erreichbar ist.It is an object of the invention to provide a method for starting an offset rotary printing machine, with which the state of progress can be reached quickly and with minimal waste accumulation.

Die Aufgabe wird erfindungsgemäß mit den Merkmalen des Patentanspruchs 1 gelöst. Dank den gut aufeinander abgestimmten Verfahrensschritten entsteht bis zum Erreichen des Fortdruckzustandes nur sehr wenig Makulatur.The object is achieved with the features of claim 1. Thanks to the well-coordinated process steps, only very little waste is created until the production condition is reached.

Weitere Merkmale und Vorteile ergeben sich aus den Unteransprüchen in Verbindung mit der Beschreibung.Other features and advantages will become apparent from the dependent claims in conjunction with the description.

Die Erfindung soll nachfolgend an einem Ausführungsbeispiel näher erläutert werden. In den zugehörigen Zeichnungen zeigt:

Fig. 1:
ein Farbprofil für Fortdruck und ein dazu inverses Farbprofil, ausschnittweise
Fig. 2:
Einfärbekurven (Farbdichten) in Abhängigkeit von der Anzahl der Drucke für eine Einstellung einer Farbdosiervorrichtung für Fortdruck und mit inverser Einstellung
Fig. 3:
einen Programmablauf für das Anfahren einer Druckmaschine.
The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawings shows:
Fig. 1:
a color profile for continuous printing and an inverse color profile, fragmentary
Fig. 2:
Dyeing curves (color densities) as a function of the number of prints for setting a color dosing device for printing and with inverse adjustment
3:
a program sequence for starting a printing press.

Das Anfahren der Offsetrotationsdruckmaschine wird nachfolgend anhand des in Figur 3 dargestellten Programmablaufs erklärt. Die Offsetrotationsdruckmaschine besitzt Druckwerke mit jeweils einem Farb- und Feuchtwerk, die die auf dem Plattenzylinder befindliche Druckform feuchten und einfärben. Jedes Farbwerk enthält eine Farbdosiervorrichtung zum zonenweisen Einstellen eines Farbprofils. Zur Abfolge der auszuführenden Verfahrensschritte sind auf der Ordinate die Drehzahl der Druckmaschine und auf der Abszisse die angefallenen Exemplare angegeben. Das Anfahren der Rotationsdruckmaschine beginnt mit dem sogenannten Laden der Produktion, wobei aus einem Speicher hinterlegte Daten für die Maschineneinstellung abgerufen werden, beispielsweise Einstellungen des Falzapparates oder des Strangregisters. Anschließend wird die Druckmaschine mit einer ersten Drehzahl n1 des Plattenzylinders angetrieben. Dies ist vorteilhaft die Einziehdrehzahl von etwa 600 h-1. Die zu bedruckende Bahn ist bereits in die Druckmaschine eingezogen. Es wird nunmehr der Trockner für die Papierbahn aktiviert, d. h., es wird mit seinem Vorheizen begonnen.The approach of the offset rotary printing machine is described below with reference to the in FIG. 3 explained program sequence explains. The offset rotary printing press has printing units, each with a color and dampening unit, which wet and ink the printing plate located on the plate cylinder. Each inking unit contains a Farbdosiervorrichtung for zoning a color profile. For the sequence of the process steps to be performed, the rotational speed of the printing machine is indicated on the ordinate and the copies incurred on the abscissa. The start of the rotary printing machine begins with the so-called loading of the production, which are retrieved from a memory stored data for the machine setting, such as settings of the folder or the strand register. Subsequently, the printing machine is driven at a first speed n1 of the plate cylinder. This is advantageous the retraction speed of about 600 h -1 . The web to be printed has already been fed into the printing press. The dryer for the paper web is now activated, ie, it is started with its preheating.

Bei der ersten Drehzahl n1 werden weiterhin die Dosiervorrichtungen der Farbwerke der Druckwerke der Offsetrotationsdruckmaschine auf ein inverses Farbprofil eingestellt. Bei der Dosiervorrichtung handelt es sich beispielsweise um Zonenschrauben für Farbzonen, in die das Farbwerk über seine Breite eingeteilt ist, wie eingangs im Stand der Technik bereits erklärt wurde. Mit den Zonenschrauben lässt sich für jede Farbzone die Höhe f eines Durchlassspaltes für die Druckfarbe zwischen einem Farbmesser und einem Farbduktor einstellen. Die Einstellungen sämtlicher Höhen f der Farbzonen liefern ein Farbprofil, wie in Figur 1 schraffiert dargestellt ist. Für die Bemessung des inversen Farbprofils wird von dem Farbprofil PF für Fortdruck ausgegangen. Dieses wird beispielsweise durch Scannen der Druckplatte gewonnen. Es wird dabei die Flächendeckung des Druckes jeder Zone ermittelt und daraus die prozentuale Öffnung f des Durchlassspaltes jeder Farbzone festgelegt. Die Differenz zu 100 % Durchlass liefert den Wert des inversen Farbprofils Pi der jeweiligen Farbzone, wie in Fig. 1 eingetragen. Bei diesem invers eingestellten Farbprofil wird nunmehr dem gereinigten Farbwerk eine definierte Farbmenge zugeführt, es wird voreingefärbt. Hierzu wird, nachdem das Farbprofil auf dem Duktor den Bereich der Filmwalze erreicht hat, letztere an den Duktor angestellt und während einer bestimmten Anzahl Plattenzylinderumdrehungen, beispielsweise zwei Umdrehungen, und bei einer speziellen Duktordrehzahl (z. B. 2 bis 3 min-1) Farbe in das Farbwerk transportiert. Dabei sind die Farb- und Feuchtauftragwalzen vom Plattenzylinder abgestellt. Danach wird die Filmwalze wieder vom Duktor abgestellt, und es wird an der Farbdosiervorrichtung das Farbprofil PF für Fortdruck eingestellt.At the first rotational speed n1, the metering devices of the inking units of the printing units of the offset rotary printing press are furthermore set to an inverse color profile. The metering device is, for example, zone screws for ink zones, into which the inking unit is divided over its width, as already explained in the prior art. With the zone screws, the height f of a printing ink passage gap between a colorimeter and a color ductor can be set for each color zone. The settings of all heights f of the color zones provide a color profile, as in FIG. 1 hatched. For the design of the inverse color profile is assumed by the color profile P F for continuous printing. This is obtained, for example, by scanning the printing plate. In doing so, the area coverage of the pressure of each zone is determined and from this the percentage opening f of the passage gap of each color zone is determined. The difference to 100% transmission provides the value of the inverse color profile P i of the respective color zone, as in Fig. 1 entered. In this inverse set color profile now the purified inking a defined amount of ink is supplied, it is pre-colored. For this purpose, after the color profile on the ductor has reached the area of the film roll, the latter is set to the ductor and during a certain Number of plate cylinder revolutions, for example two revolutions, and at a specific duct speed (eg 2 to 3 min -1 ) transporting ink into the inking unit. The inking and dampening rollers are offset from the plate cylinder. Thereafter, the film roller is turned off again by the ductor, and it is set on the Farbdosiervorrichtung the color profile P F for continuous printing.

Nunmehr wird die Druckmaschine auf eine zweite Drehzahl n2 von etwa 5000 h-1 gefahren und verharrt auf dieser Geschwindigkeit so lange, bis die Trocknerfreigabe erfolgt. Es handelt sich hierbei um die Bereitschaftsanzeige des Trockners für den Fortdruck, wofür z. B. Klappen des Trockners zu schließen sind. In der Regel erfolgt die Trocknerfreigabe bereits während der bei der ersten Drehzahl n1 ausgeführten Verfahrensschritte, so dass die Druckmaschine ohne Verharren auf der zweiten Drehzahl n2 sogleich auf eine dritte Drehzahl n3 von etwa 16000 h-1 beschleunigt wird. Während dieses Beschleunigens werden die Gummitücher vorgefeuchtet. Dies erfolgt in kurzen Intervallen mittels der Gummituchwaschanlage. Die Gummitücher befinden sich bereits in einem sauberen Zustand. Das Anfeuchten verhindert ein Ankleben der Bahn beim späteren Anstellen des Druckes.Now the printing machine is driven to a second speed n2 of about 5000 h -1 and remains at this speed until the dryer release takes place. This is the readiness display of the dryer for the printing, for which z. B. flaps of the dryer are to close. As a rule, the dryer release already takes place during the process steps carried out at the first rotational speed n1, so that the printing press is immediately accelerated to a third rotational speed n3 of about 16,000 h -1 without being persistent at the second rotational speed n2. During this acceleration, the blankets are pre-moistened. This is done at short intervals by means of the blanket washer. The blankets are already in a clean condition. Moistening prevents sticking of the web during later application of the pressure.

Während des Fahrens mit der dritten Drehzahl n3 wird nunmehr die Sequenz für Druck an ausgeführt. Diese beinhaltet:

  1. a) Antreiben des Feuchtduktors
  2. b) Antreiben des Farbduktors
  3. c) Anstellen der Feuchtauftragwalze
  4. d) Anstellen der Dosiervorrichtung an das Farbwerk (Filmwalze an)
  5. e) Anstellen der Farbauftragwalzen
  6. f) Anstellen des Druckes.
While driving at the third speed n3, the sequence for pressure is now executed. This includes:
  1. a) driving the dampening ductor
  2. b) driving the ink ductor
  3. c) Starting the dampening roller
  4. d) Starting the dosing device to the inking unit (film roller on)
  5. e) Starting the inking rollers
  6. f) adjusting the pressure.

Weiterhin werden das Farbregister und das Schnittregister eingeschaltet (scharf geschaltet). Schließlich wird beim Erreichen guter Druckexemplare die Makulaturweiche auf die Position "gut" gestellt und die Zählung der Exemplare begonnen (Nettozähler ein). Anschließend wird die Druckmaschine auf eine vierte Drehzahl n4 für den Fortdruck, beispielsweise 70000 h-1, hochgefahren. Dieses Hochfahren erfolgt verhältnismäßig langsam, beispielsweise über einen Zeitraum von 180 Sekunden, wodurch die dabei gedruckten Exemplare verkaufbare Produktion und also keine Makulatur sind.Furthermore, the color register and the cut register are switched on (armed). Finally, when good print copies are achieved, the waste gate is set to the "good" position and counting starts (net meter on). Subsequently, the printing press is raised to a fourth speed n4 for the continuous printing, for example, 70000 h -1 . This booting is relatively slow, for example over a period of time 180 seconds, so that the copies printed are salable production and therefore no waste.

Am Ende der Produktion, wenn also die gewünschte Anzahl Exemplare gedruckt wurde, wird die Makulaturweiche auf die Position "schlecht" gestellt und die Zählung der Exemplare beendet (Nettozähler aus). Nach dem Erhalt der Trocknerfreigabe, die signalisiert, dass der Trockner erhöhte Lösemittelkonzentrationen, z. B. von Waschlösungen herrührend, verarbeiten kann (Klappen des Trockners geöffnet), wird die Auslaufsequenz abgearbeitet. Diese beinhaltet das Abstellen des Druckes, Abstellen der Dosiervorrichtung (Filmwalze ab), Abstellen der Farbauftragwalzen und Abstellen der Feuchtauftragwalzen. Anschließend wird die Druckmaschine auf eine fünfte Drehzahl n5 von etwa 20000 h-1 heruntergefahren. Während des Herunterfahrens wird das Farbwerk gewaschen und dabei in den erforderlichen "leeren" Zustand für das beschriebene Anfahren der Druckmaschine für eine neue Produktion gebracht. Bei der Drehzahl n5 erfolgt das Waschen der Gummitücher. Anschließend wird die Druckmaschine angehalten.At the end of production, ie when the desired number of copies have been printed, the waste gate is set to the position "bad" and the counting of the copies is ended (net meter off). Upon receipt of the dryer release, which signals that the dryer has increased solvent concentrations, e.g. B. originating from washing solutions, can handle (flaps of the dryer open), the discharge sequence is processed. This includes stopping the printing, switching off the dosing device (film roller off), stopping the inking rollers and parking the dampening rollers. Subsequently, the printing machine is shut down to a fifth speed n5 of about 20,000 h -1 . During shutdown, the inking unit is washed, bringing it into the required "blank" condition for the described startup of the press for a new production. At speed n5, the blankets are washed. Subsequently, the printing press is stopped.

Bei dem beschriebenen Programmablauf fallen bis zum Erhalt guter Druckexemplare etwa 600 Makulaturexemplare an (siehe Fig. 3). Im Rahmen dieses Anfahrvorgangs liefert das Farbwerk dank der beschriebenen Voreinfärbung bereits nach ca. 100 Exemplaren die erforderliche Farbdichte SF für einen makulaturfreien Druck (siehe Fig. 2).In the described program run fall to the receipt of good printed copies about 600 copies copies (see Fig. 3 ). As a result of this start-up process, the inking unit already delivers the required color density S F after approx. 100 copies thanks to the described pre-inking for non-waste printing (see Fig. 2 ).

Bezugzeichen:Reference numerals:

ff
Höheheight
n1n1
erste Drehzahlfirst speed
n2n2
zweite Drehzahlsecond speed
n3n3
dritte Drehzahlthird speed
n4n4
vierte Drehzahlfourth speed
n5n5
fünfte Drehzahlfifth speed
PF P F
Farbprofil für FortdruckColor profile for production
Pi P i
inverses Farbprofilinverse color profile
ss
Farbdichtecolor density
sF s F
Farbdichte für den FortdruckColor density for the production

Claims (5)

  1. Method for starting up an offset rotary printing machine having printing groups with a dampening unit and inking unit with a metering device for the zone-wise setting of an ink profile, wherein in the first instance an ink profile that is inverse to the ink profile for production printing is set at the metering device and at a first rotational speed (n1) with application rollers thrown off from the printing forme a defined quantity of ink is supplied to the cleaned inking unit, then the ink profile for the production printing is set at the metering device, the offset printing machine is accelerated to a third speed (n3), whilst the rubber blankets are pre-dampened, and when the third rotational speed (n3) is reached the sequence for impression on is executed.
  2. Method according to claim 1, characterised in that the inverse ink profile is dimensioned with respect to approximately the difference between a 100 % opening and a desired opening of the zones of the metering device for production printing.
  3. Method according to claim 1 or 2, characterised in that during the acceleration to the third speed (n3) there is persistence at a second speed (n2) until a dryer is cleared.
  4. Method according to one of the preceding claims, characterised in that the sequence for impression on includes
    a) driving the dampening unit
    b) driving the ink ductor
    c) throwing on the dampening application roller
    d) throwing the metering device onto the inking unit
    e) throwing on the ink-application rollers
    f) throwing on the impression.
  5. Method according to one of the preceding claims, characterised in that the printing machine is slowly run up to a fourth rotational speed (n4) for the production printing at the end of the waste-elimination.
EP02002596A 2001-02-15 2002-02-05 Method for starting up an offset rotary printing machine Expired - Lifetime EP1232862B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10106986 2001-02-15
DE10106986A DE10106986B4 (en) 2001-02-15 2001-02-15 Method for starting up an offset rotary printing machine

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EP1232862A1 EP1232862A1 (en) 2002-08-21
EP1232862B1 true EP1232862B1 (en) 2009-09-30

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DE102005013634A1 (en) * 2005-03-24 2006-09-28 Man Roland Druckmaschinen Ag Method for operating a printing press
DE102006046894B4 (en) * 2006-10-04 2010-05-27 Wifag Maschinenfabrik Ag Method for starting up a web-fed rotary printing press
DE102007000952A1 (en) * 2007-09-20 2009-04-02 Koenig & Bauer Aktiengesellschaft Method for booting up a rotary printing machine
DE102008043928A1 (en) * 2008-11-20 2010-05-27 Manroland Ag Web Press
DE102010017866A1 (en) 2009-05-07 2010-11-25 Heidelberger Druckmaschinen Ag Method for controlling an inking unit of a printing machine
DE102013100916A1 (en) 2013-01-30 2014-07-31 Manroland Web Systems Gmbh Method for controlling a parameter of an inking unit
CN111204143A (en) * 2020-03-13 2020-05-29 渭南科赛机电设备有限责任公司 Printing method for one-key startup of electronic shaft gravure printing machine

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US6622626B2 (en) 2003-09-23
DE50213876D1 (en) 2009-11-12
US20020108522A1 (en) 2002-08-15
DE10106986A1 (en) 2002-09-05
EP1232862A1 (en) 2002-08-21
DE10106986B4 (en) 2008-04-24

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