EP1036667A1 - Printing plate and process for the production thereof - Google Patents

Printing plate and process for the production thereof Download PDF

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Publication number
EP1036667A1
EP1036667A1 EP00104850A EP00104850A EP1036667A1 EP 1036667 A1 EP1036667 A1 EP 1036667A1 EP 00104850 A EP00104850 A EP 00104850A EP 00104850 A EP00104850 A EP 00104850A EP 1036667 A1 EP1036667 A1 EP 1036667A1
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EP
European Patent Office
Prior art keywords
printing plate
printing
plates
rolling direction
production
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
Application number
EP00104850A
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German (de)
French (fr)
Other versions
EP1036667B1 (en
Inventor
Klaus T. Reichel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1036667A1 publication Critical patent/EP1036667A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/04—Printing plates or foils; Materials therefor metallic
    • B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
    • B41N1/083—Printing plates or foils; Materials therefor metallic for lithographic printing made of aluminium or aluminium alloys or having such surface layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49789—Obtaining plural product pieces from unitary workpiece
    • Y10T29/49798—Dividing sequentially from leading end, e.g., by cutting or breaking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • Y10T83/148—Including means to correct the sensed operation
    • Y10T83/155—Optimizing product from unique workpiece

Definitions

  • the invention relates to a printing plate according to the preamble of claim 1 and a process for their preparation in accordance the preamble of claim 6.
  • the invention is based on printing plates which are rolled up or placed on cylinders, so-called plate cylinders, by printing presses and are tensioned by folding at their circumferential ends.
  • Such printing plates have a surface on one of their flat sides that can be imaged by printing technology.
  • the corresponding surfaces B. grained, ie they are roughened or coated with light- or laser-sensitive coatings.
  • the starting material for normal width printing plates is made from rolled sheet metal strip, e.g. B. made of aluminum, cut and folded transversely to the rolling direction.
  • the sheet metal strip can already be provided with an imageable surface.
  • the plates which form the starting material for this must be cut off transversely to the rolling direction of the sheet, since the rolling mills can only produce a limited maximum strip width.
  • the folds for clamping these printing plates therefore run along the rolling direction of the metal strip that was used as the starting material.
  • the crystal axes of rolled materials are aligned in the rolling plane and rolling direction (textures), which increases strength in this direction, but increases the tendency to tear in the longitudinal direction. Due to this property, printing plates that are too wide can break after relatively few rollovers and have a significantly shorter service life compared to normal widths.
  • the object of the invention is to increase the service life of such printing plates and to provide a method for their production. This object is achieved with the features of claims 1 and 6 according to the invention.
  • one component of the load lies in the direction of the increased material strength. This extends the service life of the printing plate.
  • the method according to the invention it is possible to produce wide printing plates with increased strength in the direction of stress. Several pages can be illustrated side by side on extra-wide printing plates. They are used on very wide printing machines, the substrate web widths of z. B. Process over 1460 mm paper width.
  • Figure 1 shows a conventional printing plate (1) of the Side viewed.
  • the functional side (2) extends with their surface into the image plane and is printing technology imageable. That is z. B. enables that Functional side (2) with a light-sensitive layer is provided, which after exposure and development - accordingly the object to be printed - ink accepting or ink repelling Has zones. But for this process too the laser technology can be used well, e.g. B. so-called plate setters. The same effect can also be achieved through granular Surfaces can be achieved by the function side (2) is roughened.
  • After imaging the printing plate (1) are at their two ends in the printing direction various bends (3) bent. At these bends (3) the pressure plate (1) after rolling up or hanging up on a cylinder of a printing press by means of those provided Facilities kept and excited.
  • Printing plates (1) are usually made from plates, which as plates (5) from rolled sheet metal strip (4) be cut out.
  • Figure 2 is the invention Alignment of such a board (5) on the sheet metal strip (4) shown.
  • the board (5) with the width B and the calculated stretched length L is oblique to the longitudinal direction of the Sheet metal strip (4), so that the rolling direction WR compared to Main directions of the board (5) also run obliquely.
  • the term main directions is the extension of the Board (5) in the directions of width B and length L. understand. The more the orientation of the length L towards The rolling direction approximates WR, the greater the load capacity the pressure plate (1) in the direction of length L.
  • FIG 3 the arrangement of several boards (5) on the Sheet metal strip (4) shown as for an inventive Manufacturing process is provided.
  • the sheet metal strip (4) is by cutting on cut lines (6) that are around the section length D are offset, divided.
  • the section length D results from the position of the board (5) on the metal strip (4), because the section line (6) goes through, on the surface of the Sheet metal strips (4) lying corners of two successive Boards (5).
  • the resulting intermediate products (7) are shown in FIG. 4 shown. They are in the form of rectangles with the bandwidth W as the first edge length and the section length D as second length at right angles to it.
  • the cutting lines (8, 9) By cutting out along the cutting lines (8, 9) the dimensions the plates (5) in their oblique position to the rolling direction WR generated. This cutting out can be done with a punch be carried out in a press. You can do it at the same time register marks can also be set.
  • FIG. 5 shows the procedure for another one according to the invention Process in which the waste is optimized is and therefore the costs are lower.
  • the plates (5) are at an angle to the rolling direction WR of the metal strip (4), but the boards (5) follow one another without longitudinal offset. This is offset by oblique Cuts along the cutting line (10) achieved by which already defines the width B of the printing plates (1) become.
  • both the angle of the Section line (10) as well as the clock that is, the offset between the cuts made, on different inclinations different boards (5) can be adapted.
  • FIG. 6 shows an intermediate product (11) from the previous one Process step.
  • These intermediates (11) are Parallelograms with a height corresponding to the bandwidth W.

Landscapes

  • Printing Plates And Materials Therefor (AREA)

Abstract

Over-wide printing plate cut from rolled strip material has a strip roll direction (WR) which is diagonal to the main direction of the printing plate (1). The plate is either aluminum or an aluminum alloy. An Independent claim is made for a process for production of a printing plate from a strip roll where a section is first cut and then a plate cut diagonally from it with dimensions less than that of the first cut section.

Description

Die Erfindung betrifft eine Druckplatte gemäß dem Oberbegriff des Anspruchs 1 und ein Verfahren zu ihrer Herstellung gemäß dem Oberbegriff des Anspruchs 6.The invention relates to a printing plate according to the preamble of claim 1 and a process for their preparation in accordance the preamble of claim 6.

[Stand der Technik][State of the art]

Die Erfindung geht von Druckplatten aus, die auf Zylinder, sogenannten Plattenzylindern, von Druckmaschinen aufgerollt bzw. aufgelegt werden und durch Abkantungen an ihren umfangsmäßigen Enden gespannt werden. Solche Druckplatten weisen auf einer ihrer flächigen Seiten eine Oberfläche auf, die drucktechnisch bebilderbar ist. Dazu werden die entsprechenden Oberflächen z. B. gekörnt, d. h. sie werden aufgerauht oder mit licht- bzw.laserempfindlichen Belägen beschichtet.
Das Ausgangsmaterial für normalbreite Druckplatten wird von gewalztem Blechband, z. B. aus Aluminium, abgeschnitten und quer zur Walzrichtung abgekantet. Das Blechband kann dabei bereits mit einer bebilderbaren Oberfläche versehen sein. Bei Druckplatten für überbreite Maschinen müssen die Platten, die das Ausgangsmaterial dafür bilden jedoch bekannterweise quer zur Walzrichtung des Bleches abgeschnitten werden, da die Walzwerke nur eine begrenzte maximale Bandbreite produzieren können. Die Abkantungen zum Festspannen dieser Druckplatten verlaufen deshalb längs der Walzrichtung des Blechbands, das als Ausgangsmaterial eingesetzt wurde.
Die Kristallachsen von gewalzten Werkstoffen sind in Walzebene und Walzrichtung ausgerichtet (Texturen), wodurch in dieser Richtung eine gesteigerte Festigkeit auftritt, aber in Längsrichtung eine erhöhte Reißneigung besteht. Aufgrund dieser Eigenschaft können im Druckbetrieb überbreite Druckplatten nach relativ wenigen Überrollungen brechen und haben im Vergleich mit normalbreiten wesentlich kürzere Standzeiten. The invention is based on printing plates which are rolled up or placed on cylinders, so-called plate cylinders, by printing presses and are tensioned by folding at their circumferential ends. Such printing plates have a surface on one of their flat sides that can be imaged by printing technology. For this purpose, the corresponding surfaces. B. grained, ie they are roughened or coated with light- or laser-sensitive coatings.
The starting material for normal width printing plates is made from rolled sheet metal strip, e.g. B. made of aluminum, cut and folded transversely to the rolling direction. The sheet metal strip can already be provided with an imageable surface. In the case of printing plates for oversized machines, however, the plates which form the starting material for this, as is known, must be cut off transversely to the rolling direction of the sheet, since the rolling mills can only produce a limited maximum strip width. The folds for clamping these printing plates therefore run along the rolling direction of the metal strip that was used as the starting material.
The crystal axes of rolled materials are aligned in the rolling plane and rolling direction (textures), which increases strength in this direction, but increases the tendency to tear in the longitudinal direction. Due to this property, printing plates that are too wide can break after relatively few rollovers and have a significantly shorter service life compared to normal widths.

[Aufgabe der Erfindung]OBJECT OF THE INVENTION

Aufgabe der Erfindung ist es, die Standzeit solcher Druckplatten zu steigern und ein Verfahren zu ihrer Herstellung bereitzustellen.
Diese Aufgabe wird mit den Merkmalen der Patentansprüche 1 und 6 erfindungsgemäß gelöst.
Bei der erfindungsgemäßen Druckplatte liegt eine Komponente der Belastung in der Richtung der erhöhten Werkstoffestigkeit. Dadurch wird die Standzeit der Druckplatte verlängert. Mit dem erfindungsgemäßen Verfahren ist es möglich überbreite Druckplatten mit gesteigerter Festigkeit in Beanspruchungsrichtung herzustellen. Auf überbreiten Druckplatten können mehrere Seiten nebeneinander bebildert sein. Sie werden auf sehr breiten Druckmaschinen eingesetzt, die Bedruckstoffbahnbreiten von z. B. über 1460 mm Papierbreite verarbeiten.The object of the invention is to increase the service life of such printing plates and to provide a method for their production.
This object is achieved with the features of claims 1 and 6 according to the invention.
In the printing plate according to the invention, one component of the load lies in the direction of the increased material strength. This extends the service life of the printing plate. With the method according to the invention, it is possible to produce wide printing plates with increased strength in the direction of stress. Several pages can be illustrated side by side on extra-wide printing plates. They are used on very wide printing machines, the substrate web widths of z. B. Process over 1460 mm paper width.

[Beispiele][Examples]

Durch nachfolgende Beschreibung der beigefügten Zeichnungen wird die Erfindung näher erläutert. Es zeigen:

Fig. 1
eine Druckplatte in Seitenansicht
Fig. 2
Lage einer Platine auf einem Blechband
Fig. 3
Anordnung von Platinen auf einem Blechband nach einem erfindungsgemäßen Verfahren
Fig. 4
Zwischenprodukt des gleichen Verfahrens
Fig. 5
Anordnung von Platinen nach einem weiteren erfindungsgemäßen Verfahren
Fig. 6
ein weiteres Zwischenprodukt
The invention is explained in more detail by the following description of the accompanying drawings. Show it:
Fig. 1
a printing plate in side view
Fig. 2
Location of a circuit board on a metal strip
Fig. 3
Arrangement of boards on a sheet metal strip according to a method according to the invention
Fig. 4
Intermediate product of the same process
Fig. 5
Arrangement of boards according to a further method according to the invention
Fig. 6
another intermediate

Die Figur 1 zeigt eine herkömmliche Druckplatte (1) von der Seite betrachtet. Die Funktionsseite (2) erstreckt sich mit ihrer Oberfläche in die Bildebene hinein und ist drucktechnisch bebilderbar. Das wird z. B. dadurch ermöglicht, daß die Funktionsseite (2) mit einer lichtempfindlichen Schicht versehen ist, die nach Belichtung und Entwicklung - entsprechend dem zu druckenden Objekt - farbannehmende bzw. farbabstoßende Zonen aufweist. Für diesen Prozeß ist jedoch auch die Lasertechnik gut einsetzbar, z. B. sogenannte Plate-Setter. Die gleiche Wirkung kann aber auch durch gekörnte Oberflächen erzielt werden, indem die Funktionsseite (2) aufgerauht wird. Nach der Bebilderung der Druckplatte (1) werden an ihren beiden in Druckrichtung liegenden Enden verschiedene Abkantungen (3) angebogen. An diesen Abkantungen (3) wird die Druckplatte (1) nach dem Aufrollen bzw. Auflegen auf einen Zylinder einer Druckmaschine durch dafür vorgesehene Einrichtungen gehalten und gespannt.Figure 1 shows a conventional printing plate (1) of the Side viewed. The functional side (2) extends with their surface into the image plane and is printing technology imageable. That is z. B. enables that Functional side (2) with a light-sensitive layer is provided, which after exposure and development - accordingly the object to be printed - ink accepting or ink repelling Has zones. But for this process too the laser technology can be used well, e.g. B. so-called plate setters. The same effect can also be achieved through granular Surfaces can be achieved by the function side (2) is roughened. After imaging the printing plate (1) are at their two ends in the printing direction various bends (3) bent. At these bends (3) the pressure plate (1) after rolling up or hanging up on a cylinder of a printing press by means of those provided Facilities kept and excited.

Druckplatten (1) werden üblicherweise aus Platten hergestellt, die als Platinen (5) aus gewalztem Blechband (4) herausgeschnitten werden. In Figur 2 ist die erfindungsgemäße Ausrichtung einer solchen Platine (5) auf dem Blechband (4) dargestellt. Die Platine (5) mit der Breite B und der berechneten gestreckten Länge L liegt schräg zur Längsrichtung des Blechbandes (4), so daß die Walzrichtung WR gegenüber den Hauptrichtungen der Platine (5) ebenfalls schräg verläuft. Unter dem Begriff Hauptrichtungen ist die Erstreckung der Platine (5) in den Richtungen der Breite B und der Länge L zu verstehen. Je mehr sich die Ausrichtung der Länge L zur Walzrichtung WR annähert, umso größer wird die Belastbarkeit der Druckplatte (1) in Richtung der Länge L. Zur Optimierung dieser Belastungsrichtung werden zwei sich diagonal gegenüberliegende Ecken der Platine (5) auf die äußersten Ränder der Bandbreite W des Blechbandes (4) gelegt. Das Optimum ist erreicht, wenn die Bandbreite W so groß wie die Breite B der Druckplatte (1) ist. Bei normalbreiten Druckplatten (1) kommt dieser Fall vor. Printing plates (1) are usually made from plates, which as plates (5) from rolled sheet metal strip (4) be cut out. In Figure 2 is the invention Alignment of such a board (5) on the sheet metal strip (4) shown. The board (5) with the width B and the calculated stretched length L is oblique to the longitudinal direction of the Sheet metal strip (4), so that the rolling direction WR compared to Main directions of the board (5) also run obliquely. The term main directions is the extension of the Board (5) in the directions of width B and length L. understand. The more the orientation of the length L towards The rolling direction approximates WR, the greater the load capacity the pressure plate (1) in the direction of length L. For optimization this direction of loading becomes two diagonally opposite one another Corners of the board (5) on the outermost edges the bandwidth W of the sheet metal strip (4). The optimum is reached when the bandwidth W is as large as the width B of the Pressure plate (1) is. With normal width printing plates (1) comes this case before.

In Figur 3 ist die Anordnung mehrerer Platinen (5) auf dem Blechband (4) gezeigt wie sie für ein erfindungsgemäßes Herstellverfahren vorgesehen ist. Das Blechband (4) wird durch Schneiden an Schnittlinien (6), die um die Abschnittslänge D versetzt sind, zerteilt. Die Abschnittslänge D ergibt sich aus der Lage der Platine (5) auf dem Blechband (4), denn die Schnittlinie (6) geht durch die, auf der Fläche des Blechbands (4) liegenden Ecken zweier aufeinanderfolgenden Platinen (5).In Figure 3, the arrangement of several boards (5) on the Sheet metal strip (4) shown as for an inventive Manufacturing process is provided. The sheet metal strip (4) is by cutting on cut lines (6) that are around the section length D are offset, divided. The section length D results from the position of the board (5) on the metal strip (4), because the section line (6) goes through, on the surface of the Sheet metal strips (4) lying corners of two successive Boards (5).

Die dabei entstandenen Zwischenprodukte (7) sind in Figur 4 dargestellt. Sie haben die Form von Rechtecken mit der Bandbreite W als erste Kantenlänge und der Abschnittslänge D als rechtwinklig dazu verlaufende zweite Länge. Durch Heraustrennen entlang der Schnittlinien (8, 9) werden die Abmessungen der Platinen (5) in ihrer schrägen Lage zur Walzrichtung WR erzeugt. Dieses Ausschneiden kann mit einem Stanzwerkzeug auf einer Presse durchgeführt werden. Dabei können gleichzeitig auch Registermarkierungen gesetzt werden.The resulting intermediate products (7) are shown in FIG. 4 shown. They are in the form of rectangles with the bandwidth W as the first edge length and the section length D as second length at right angles to it. By cutting out along the cutting lines (8, 9) the dimensions the plates (5) in their oblique position to the rolling direction WR generated. This cutting out can be done with a punch be carried out in a press. You can do it at the same time register marks can also be set.

Die Figur 5 zeigt das Vorgehen nach einem weiteren erfindungsgemäßen Verfahren, bei welchem der Verschnitt optimiert ist und damit die Kosten geringer sind. Auch bei diesem Verfahren liegen die Platinen (5) schräg zur Walzrichtung WR des Blechbands (4), aber die Platinen (5) folgen einander ohne Versatz in Längsrichtung. Dies wird durch schräge versetzte Schnitte entlang der Schnittlinie (10) erreicht, durch die bereits die Breite B der Druckplatten (1) festgelegt werden. Bei diesem Verfahren muß sowohl der Winkel der Schnittlinie (10) als auch der Takt, das heißt der Versatz zwischen den ausgeführten Schnitten, auf verschiedene Schräglagen unterschiedlicher Platinen (5) angepaßt werden.FIG. 5 shows the procedure for another one according to the invention Process in which the waste is optimized is and therefore the costs are lower. This one too The plates (5) are at an angle to the rolling direction WR of the metal strip (4), but the boards (5) follow one another without longitudinal offset. This is offset by oblique Cuts along the cutting line (10) achieved by which already defines the width B of the printing plates (1) become. In this process, both the angle of the Section line (10) as well as the clock, that is, the offset between the cuts made, on different inclinations different boards (5) can be adapted.

Die Figur 6 stellt ein Zwischenprodukt (11) aus dem vorigen Verfahrensschritt dar. Diese Zwischenprodukte (11) sind Parallelogramme mit einer Höhe entsprechend der Bandbreite W. Durch Ausklinken der, über die Längserstreckung der Platinen (5) überstehenden, Dreiecke entlang der Schnittlinien (12), wird abschließend die Länge L erzeugt. Auch bei diesem Verfahren können in diesem Schritt Registermarkierungen mitgestanzt werden. FIG. 6 shows an intermediate product (11) from the previous one Process step. These intermediates (11) are Parallelograms with a height corresponding to the bandwidth W. By notching the, over the longitudinal extent of the boards (5) protruding triangles along the section lines (12), then the length L is generated. Even with this procedure you can punch register marks in this step become.

[Bezugszeichenliste][List of reference numerals]

11
Druckplatteprinting plate
22nd
FunktionsseiteFunctional page
33rd
AbkantungFolding
44th
BlechbandMetal strip
55
Platinecircuit board
66
SchnittlinieCutting line
77
ZwischenproduktIntermediate
88th
SchnittlinieCutting line
99
SchnittlinieCutting line
1010th
SchnittlinieCutting line
1111
ZwischenproduktIntermediate
1212th
SchnittlinieCutting line
BB
Breitewidth
DD
AbschnittslängeSection length
LL
(gestreckte) Länge(extended length
WW
BandbreiteBandwidth
WRWR
WalzrichtungRolling direction

Claims (8)

Druckplatte aus gewalztem Blechmaterial, dadurch gekennzeichnet, daß die Walzrichtung (WR) des Blechs (4) schräg zu den Hauptrichtungen der Druckplatte (1) verläuft.Pressure plate made of rolled sheet metal material, characterized in that that the rolling direction (WR) of the sheet (4) obliquely to the main directions of the pressure plate (1). Druckplatte nach Anspruch 1, dadurch gekennzeichnet, daß das Blechmaterial aus Aluminium oder einer Aluminiumlegierung besteht.Printing plate according to claim 1, characterized in that the sheet material made of aluminum or an aluminum alloy consists. Druckplatte nach Anspruch 1, dadurch gekennzeichnet, daß eine Oberfläche der Druckplatte (1) nämlich die Funktionsseite (2) für einen Druckprozeß bebilderbar ist.Printing plate according to claim 1, characterized in that a surface of the printing plate (1) namely the functional side (2) can be imaged for a printing process. Druckplatte nach Anspruch 3, dadurch gekennzeichnet, daß die Funktionsseite (2) der Druckplatte (1) mit einer licht- oder laserempfindlichen Schicht versehen ist.Printing plate according to claim 3, characterized in that the functional side (2) of the pressure plate (1) with a light- or laser-sensitive layer is provided. Druckplatte nach Anspruch 3, dadurch gekennzeichnet, daß die Funktionsseite (2) der Druckplatte (1) eine gekörnte aufgerauhte Oberfläche aufweist.Printing plate according to claim 3, characterized in that the functional side (2) of the pressure plate (1) is a grained has a roughened surface. Verfahren zur Herstellung von rechteckigen Platinen (5) zur Verwendung als Druckplatten (1) aus gewalztem Blechband (4), dadurch gekennzeichnet, daß die Hauptrichtungen der Platinen schräg zur Walzrichtung (WR) des Blechbandes (4) herausgearbeitet werden.Process for the production of rectangular blanks (5) for use as pressure plates (1) made from rolled sheet metal strip (4), characterized in that the main directions of the plates at an angle to the rolling direction (WR) of the sheet metal strip (4) be worked out. Verfahren zur Herstellung von Druckplatten nach Anspruch 6, dadurch gekennzeichnet, daß zunächst Abschnitte der Bandbreite W und der Abschnittslänge D rechtwinklig zur Walzrichtung (WR) abgetrennt werden und aus diesen Abschnitten die Platinen (5) der Breite B und der gestreckten Länge L, schräg zur Walzrichtung (WR) herausgearbeitet werden.
Fig. 3 und 4Process for the production of printing plates according to claim 6, characterized in that first sections of the strip width W and section length D are cut off at right angles to the rolling direction (WR) and from these sections the plates (5) of width B and the elongated length L, obliquely to Rolling direction (WR) are worked out.
3 and 4 Verfahren zur Herstellung von Druckplatten nach Anspruch 6, dadurch gekennzeichnet, daß zunächst durch versetzte schräge Schnitte (10) die Platinenbreite B erzeugt wird und rechtwinklig dazu die gestreckte Länge L der Druckplatte (1) geschnitten wird.
Fig. 5 und 6Process for the production of printing plates according to claim 6, characterized in that the board width B is first produced by offset oblique cuts (10) and the elongated length L of the printing plate (1) is cut at right angles to it.
5 and 6
EP00104850A 1999-03-17 2000-03-07 Printing plate and process for the production thereof Expired - Lifetime EP1036667B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19911821 1999-03-17
DE19911821A DE19911821C2 (en) 1999-03-17 1999-03-17 Printing plate and process for its manufacture

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EP1036667A1 true EP1036667A1 (en) 2000-09-20
EP1036667B1 EP1036667B1 (en) 2004-04-28

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US (1) US6354205B1 (en)
EP (1) EP1036667B1 (en)
DE (2) DE19911821C2 (en)

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DE19954143C2 (en) * 1999-11-11 2002-02-07 Roland Man Druckmasch Printing plate and process for its manufacture
DE102015212125A1 (en) 2015-06-30 2017-01-05 Ford Global Technologies, Llc Torsionsquerträger, in particular for a torsion beam axle and motor vehicle comprising the Torsionsquerträger
DE202015103545U1 (en) 2015-06-30 2015-07-23 Ford Global Technologies, Llc Torsionsquerträger, in particular for a torsion beam axle and motor vehicle comprising the Torsionsquerträger

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DD252799A1 (en) * 1986-09-18 1987-12-30 Mansfeld Kombinat W Pieck Veb METHOD OF MANUFACTURING ALUMINUM PRESSURE PLATES FOR OFFSET PRINTING METHOD
EP0470529A1 (en) * 1990-08-07 1992-02-12 Fuji Photo Film Co., Ltd. Substrate for lithographic printing plate

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EP1036667B1 (en) 2004-04-28
DE19911821A1 (en) 2000-09-28
DE50006207D1 (en) 2004-06-03
DE19911821C2 (en) 2003-03-20
US6354205B1 (en) 2002-03-12

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