[go: up one dir, main page]

EP0193710A2 - Aluminium foil for offset printing and process for its manufacture - Google Patents

Aluminium foil for offset printing and process for its manufacture Download PDF

Info

Publication number
EP0193710A2
EP0193710A2 EP86100479A EP86100479A EP0193710A2 EP 0193710 A2 EP0193710 A2 EP 0193710A2 EP 86100479 A EP86100479 A EP 86100479A EP 86100479 A EP86100479 A EP 86100479A EP 0193710 A2 EP0193710 A2 EP 0193710A2
Authority
EP
European Patent Office
Prior art keywords
offset
thickness
strip
aluminum
hot
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
EP86100479A
Other languages
German (de)
French (fr)
Other versions
EP0193710B1 (en
EP0193710A3 (en
Inventor
Wolfgang Von Asten
Karl Heinz Dr. Dörner
Hartmut Scheel
Volker Würstle
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to AT86100479T priority Critical patent/ATE65214T1/en
Publication of EP0193710A2 publication Critical patent/EP0193710A2/en
Publication of EP0193710A3 publication Critical patent/EP0193710A3/en
Application granted granted Critical
Publication of EP0193710B1 publication Critical patent/EP0193710B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

Definitions

  • the invention relates to an aluminum offset strip with a predominantly globulitically recrystallized and subsequently cold-deformed structure.
  • Rolled strips and sheets made of aluminum or aluminum alloys are used in the thickness range from 0.1 to 0.5 mm to produce offset printing plates.
  • the aluminum strip is provided with a light-sensitive photo layer, which is transformed by the action of light in such a way that it is insoluble for the developers used.
  • a light-sensitive photo layer which is transformed by the action of light in such a way that it is insoluble for the developers used.
  • an uncoated aluminum surface is present in the unexposed areas, which has hydrophilic properties.
  • the rolled surface must be roughened mechanically or electrochemically or chemically to better anchor the light-sensitive layer.
  • this roughening should be as homogeneous and fine-celled as possible.
  • the object of the present invention is to further improve the strength and elongation values, in particular the thermal stability and rigidity, in the case of an offset tape of the type mentioned at the outset, the suitability of the surface for the subsequent electrochemical roughening being retained and a simplified method for producing such offset tapes to provide.
  • the invention therefore aims at an Al offset tape with a predominantly globulitically recrystallized and then cold-deformed structure with a clearly fine grain structure and a strongly consolidated core area.
  • the structure chosen means that the requirements for an offset tape can be met in an optimal manner without plating. Due to the significantly less steered rolling structure of the surface layer, mechanical and electrochemical roughening of the printing plate is possible, which has a homogeneous and fine-grained structure on the surface to be coated. The streaked rolled structure in the core ensures the necessary strength even after a possible thermal aftertreatment.
  • the hot rolling process is controlled according to the invention in such a way that recrystallization cannot take place over the entire cross section of the offset strip, but only in the edge zones. This results in a non-recrystallized core zone with a streaked roll structure, which is important for the increased mechanical properties. Numerous tests have shown that a surface area of 10 to 30% - preferably 15% - with a globular structure is sufficient for the electrochemical roughening.
  • the globular grain structure of the hot strip is lengthened by the subsequent cold rolling, but has a significantly lower stretching of the edge zone compared to the core.
  • the grains elongated in the rolling direction have an elongation of s less than 8 on the surface, the core zone elongation values of s greater than 16.
  • the evaluation method of R. Dederichs and H. Kostron was used.
  • the comparative experiment shows that the method according to the invention leads to an offset band which has the surface suitable for electrochemical roughening with very favorable mechanical properties.
  • the mechanical properties can be improved to such an extent that the decrease in strength that would otherwise be expected after a thermal treatment of more than 200 ° C. is only delayed and occurs to a much lesser extent.
  • the yield point ratio is a measure of the stiffness of the belt. The stiffness must be sufficiently high for good handling, in particular of thin strips.
  • the offset tape produced according to the invention is therefore superior to the material hitherto used for these purposes, which does not have sufficient rigidity after the stoving temperature frequently used for offset purposes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Metal Rolling (AREA)
  • Insulated Metal Substrates For Printed Circuits (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Clamps And Clips (AREA)
  • ing And Chemical Polishing (AREA)
  • Powder Metallurgy (AREA)
  • Laminated Bodies (AREA)

Abstract

Es soll ein Aiuminium-Offsetband mit einem vorwiegend globulitisch rekristallisierten und anschließend kalt verformten Gefüge geschaffen werden, bei dem die Festigkeits- und Dehnungswerte, insbesondere die thermische Stabilität und Steifigkeit, verbessert werden, wobei die Eignung der Oberfläche für die nachfolgende elektrochemische Aufrauhung erhalten bleibt. Diese Aufgabe wird gelöst durch eine Kernzone aus streifigem Walzgefüge von einer in Walzrichtung gelängten Kornstruktur und einer beidseitigen, parallel zur Walzrichtung ausgebildeten Oberflächenzone aus vorwiegend globulitisch rekristallisiertem Gefüge mit einer Streckung S < 8.The aim is to create an aluminum aium offset tape with a predominantly globulitically recrystallized and then cold-deformed structure in which the strength and elongation values, in particular the thermal stability and rigidity, are improved, while the suitability of the surface for the subsequent electrochemical roughening is retained. This object is achieved by a core zone consisting of a striped roll structure with a grain structure elongated in the rolling direction and a surface zone formed on both sides and parallel to the rolling direction and consisting mainly of a globulitically recrystallized structure with an extension S <8.

Bei einem Verfahren zur Herstellung eines derartigen Offsetbandes wird ein Barren von 400 bis 600 mm Dicke bei Temperaturen von 550 bis 4800C warmgewalzt, wobei die Warmbandausbringungstemperatur oberhalb von 320°C liegt und die Warmbandenddicke weniger als 3,5 mm beträgt sowie das auf Raumtemperatur abgekühlte Aluminiumband ohne Zwischenglühung mit einem Abwalzgrad von 80 bis 90%, bezogen auf die Warmbandenddicke, kalt auf Enddicke gewalzt wird.In a method for producing such an offset strip, a billet of 400 to 600 mm thickness is hot-rolled at temperatures of 550 to 4800 ° C., the hot strip application temperature being above 320 ° C. and the final hot strip thickness being less than 3.5 mm, and the aluminum strip having cooled to room temperature is rolled without intermediate annealing with a rolling degree of 80 to 90%, based on the hot strip end thickness, cold to the end thickness.

Description

Die Erfindung betrifft ein Aluminium-Offsetband mit einem vorwiegend globulitisch rekristallisierten und anschließend kalt verformten Gefüge.The invention relates to an aluminum offset strip with a predominantly globulitically recrystallized and subsequently cold-deformed structure.

Zur Herstellung von Offsetdruckplatten werden gewalzte Bänder und Bleche aus Aluminium bzw. Aluminiumlegierungen in Dickenbereichen von 0,1 bis 0,5 mm eingesetzt. Das Aluminiumband wird bei der Weiterverarbeitung mit einer lichtempfindlichen Fotoschicht versehen, die sich durch Lichteinwirkung so umwandelt, daß sie für die verwendeten Entwickler unlöslich ist. An den nicht belichteten Stellen liegt nach dem Entwickeln eine unbeschichtete Aluminiumoberfläche vor, die hydrophile Eigenschaften aufweist.Rolled strips and sheets made of aluminum or aluminum alloys are used in the thickness range from 0.1 to 0.5 mm to produce offset printing plates. During the further processing, the aluminum strip is provided with a light-sensitive photo layer, which is transformed by the action of light in such a way that it is insoluble for the developers used. After development, an uncoated aluminum surface is present in the unexposed areas, which has hydrophilic properties.

Die fertig entwickelte Druckplatte wird für den Druckvorgang auf einen Plattenzylinder gespannt. Eine wichtige Anforderung an Offsetdruckplatten besteht darin, eine ausreichende Fes- tigkeit und RiBunempfindlichkeit bei dieser mechanischen Be-anspruchung aufzuweisen.The fully developed printing plate is clamped on a plate cylinder for the printing process. An important requirement for offset printing plates is sufficient to have es- F ACTION and R iBunempfindlichkeit in this mechanical B-e anspruchung.

Zur Erzielung einer möglichst hohen Druckauflage muß die gewalzte Oberfläche zur besseren Verankerung der lichtempfind- lichen Schicht mechanisch oder elektrochemisch oder chemisch aufgerauht werden. Aus Qualitätsgründen sollte diese Aufrauhung möglichst homogen und feinzellig sein.To achieve the largest possible print run, the rolled surface must be roughened mechanically or electrochemically or chemically to better anchor the light-sensitive layer. For reasons of quality, this roughening should be as homogeneous and fine-celled as possible.

Zur Erhöhung der Farbdruckauflage ist ferner bekannt, die entwickelte und als Träger dienende Schicht einem thermischen Prozeß zu unterwerfen und hierbei die verbleibenden Schichtteile (Bildträger) zusätzlich zu härten. Diese thermische Nachbehandlung wird üblicherweise bei Temperaturen durchgeführt, die einen deutlichen Festigkeitsabfall von Aluminium bewirken.To increase the color print run, it is also known to subject the developed and serving as a layer to a thermal process and thereby the remaining layer parts (image carrier) additionally harden. This thermal aftertreatment is usually carried out at temperatures which cause a significant decrease in the strength of aluminum.

Die vorstehend beschriebenen Anforderungen an ein Offsetband konnten bisher nur durch eine aufwendige Technik erfüllt werden. So wurde nach DE-OS 19 29 146 vorgeschlagen, auf einen Kern aus der reißfesten und schmiegsamen Aluminium-Magnesium-Mangan-Legierung beidseitig eine 2 - 16 % dicke Schicht aus Reinaluminium aufzuplattieren. Damit sollte eine Kombination von guten Festigkeitseigenschaften bei gleichzeitig günstigem Aufrauhverhalten ermöglicht werden.The requirements for an offset tape described above could previously only be met using complex technology. For example, according to DE-OS 19 29 146 it was proposed to coat a core of the tear-resistant and supple aluminum-magnesium-manganese alloy on both sides with a 2 - 16% thick layer of pure aluminum. This should enable a combination of good strength properties and at the same time favorable roughening behavior.

Aufgabe der vorliegenden Erfindung ist es, bei einem Offsetband der eingangs genannten Art die Festigkeits- und Dehnungswerte, insbesondere die thermische Stabilität und Steifigkeit weiter zu verbessern, wobei die Eignung der Oberfläche für die nachfolgende elektrochemische Aufrauhung erhalten bleibt sowie ein vereinfachtes Verfahren zur Herstellung derartiger Offsetbänder zur Verfügung zu stellen. Die Erfindung stebt also ein Al-Offsetband mit einem vorwiegend globulitisch rekristallisierten und anschließend kalt verformten Gefüge mit deutlich feiner Kornstruktur und einem gleichzeitig stark verfestigten Kernbereich an.The object of the present invention is to further improve the strength and elongation values, in particular the thermal stability and rigidity, in the case of an offset tape of the type mentioned at the outset, the suitability of the surface for the subsequent electrochemical roughening being retained and a simplified method for producing such offset tapes to provide. The invention therefore aims at an Al offset tape with a predominantly globulitically recrystallized and then cold-deformed structure with a clearly fine grain structure and a strongly consolidated core area.

Erfindungsgemäß wird diese Aufgabe durch die in den Patentansprüchen angegebenen Merkmale gelöst. Durch den gewählten Gefügeaufbau wird erreicht, daß den Anforderungen an ein Offsetband ohne Plattierung in optimaler Weise entsprochen werden kann. Aufgrund der deutlich geringfügiger gelenkten Walzstruktur der Oberflächenschicht ist eine mechanische und elektrochemische Aufrauhung der Druckplatte möglich, die an der zu beschichtenden Oberfläche eine homogene und feinkörnige Struktur aufweist. Die im Kern vorhandene streifige Walzstruktur sorgt für die notwendige Festigkeit auch nach einer eventuellen thermischen Nachbehandlung.According to the invention, this object is achieved by the features specified in the patent claims. The structure chosen means that the requirements for an offset tape can be met in an optimal manner without plating. Due to the significantly less steered rolling structure of the surface layer, mechanical and electrochemical roughening of the printing plate is possible, which has a homogeneous and fine-grained structure on the surface to be coated. The streaked rolled structure in the core ensures the necessary strength even after a possible thermal aftertreatment.

Bei dem Verfahren zur Herstellung des erfindungsgemäßen Offsetbandes müssen folgende Schritte beachtet werden:The following steps must be observed in the method for producing the offset tape according to the invention:

  • 1. Warmbandausbringungstemperatur größer als 320° C,1. hot strip application temperature greater than 320 ° C,
  • 2. hoher Abwalzgrad in der Warmwalzung von 600 mm auf kleiner als' 3,5 mm,2. high degree of rolling in hot rolling from 600 mm to less than '3.5 mm,
  • 3. Kaltwalzen ohne Zwischenglühung an Enddicke,3. Cold rolling without intermediate annealing to final thickness,
  • 4. Abwalzgrad beim Kaltwalzen von 80 bis 90 %, bezogen auf die Warmbandenddicke.4. Degree of rolling during cold rolling from 80 to 90%, based on the final hot strip thickness.

Unter Beachtung dieser Verfahrensmerkmale ist es möglich, eine thermische Beeinflussung des Aluminiumbandes in der weise herbeizuführen, daß die äußere Schicht des Bandes rekristallisiert unter Bildung eines globulitischen Gefüges mit Korngrößen von 100 bis 36 µm2, entsprechend 5000 bis 1000 Körner pro mm2. Dieses Gefüge ist besonders homogen und kann als feinkörnig bezeichnet werden.Taking these process features into account, it is possible to bring about a thermal influence on the aluminum strip in such a way that the outer layer of the strip recrystallizes to form a globulitic structure with grain sizes of 100 to 36 μm 2 , corresponding to 5000 to 1000 grains per mm 2 . This structure is particularly homogeneous and can be described as fine-grained.

Der Warmwalzprozeß wird erfindungsgemäß so gesteuert, daß eine Rekristallisation nicht über den gesamten Querschnitt des Offsetbandes, sondern nur in den Randzonen erfolgen kann. Hieraus resultiert eine nicht-rekristallisierte Kernzone mit streifigem Walzgefüge, die für die erhöhten mechanischen Eigenschaften von Bedeutung ist. Zahlreiche versuche haben ergeben, daß für die elektrochemische Aufrauhung ein Oberflächenbereich von 10 bis 30 % - vorzugsweise 15 % - mit globulitischem Gefüge ausreichend ist. Durch das anschließende Kaltwalzen wird die globulitische Kornstruktur des Warmbandes gelängt, weist aber eine deutlich niedrigere Streckung der Randzone, verglichen mit dem Kern auf.The hot rolling process is controlled according to the invention in such a way that recrystallization cannot take place over the entire cross section of the offset strip, but only in the edge zones. This results in a non-recrystallized core zone with a streaked roll structure, which is important for the increased mechanical properties. Numerous tests have shown that a surface area of 10 to 30% - preferably 15% - with a globular structure is sufficient for the electrochemical roughening. The globular grain structure of the hot strip is lengthened by the subsequent cold rolling, but has a significantly lower stretching of the edge zone compared to the core.

Die in Walzrichtung gelängten Körner weisen eine streckung von s kleiner 8 an der Oberfläche, die Kernzone Streckungswerte von s größer gleich 16, auf. Es wurde das Auswerteverfahren von R. Dederichs und H. Kostron angewendet.The grains elongated in the rolling direction have an elongation of s less than 8 on the surface, the core zone elongation values of s greater than 16. The evaluation method of R. Dederichs and H. Kostron was used.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispieles und eines Vergleichsbeispieles näher erläutert:

  • Beispiel 1: erfindungsgemäßes Produkt - hergestellt nach Anspruch 2
  • Figure imgb0001
    vergleichsbeispiel2: Standardfertigung
    Figure imgb0002
    Die nach den Beispielen 1 und 2 hergestellten Offsetbänder wurden einer thermischen Nachbehandlung bei Temperaturen von 240° C für 15 Minuten unterworfen. Dabei ergaben sich die folgenden Festigkeitswerte:
    Figure imgb0003
    Figure imgb0004
The invention is explained in more detail below on the basis of an exemplary embodiment and a comparative example:
  • Example 1: Product according to the invention - produced according to claim 2
  • Figure imgb0001
    Comparative example 2: standard production
    Figure imgb0002
    The offset strips produced according to Examples 1 and 2 were subjected to a thermal aftertreatment at temperatures of 240 ° C. for 15 minutes. The following strength values resulted:
    Figure imgb0003
    Figure imgb0004

Der vergleichsversuch zeigt, daß das erfindungsgemäße Verfahren zu einem Offsetband führt, das die für eine elektrochemische Aufrauhung geeignete Oberfläche bei sehr günstigen mechanischen Eigenschaften aufweist. Bei Zugabe von Magnesium, Beryllium und/oder Kupfer können die mechanischen Eigenschaften soweit verbessert werden, daß der sonst zu erwartende Festigkeitsabfall nach einer thermischen Behandlung von mehr als 200° C nur verzögert und in weit geringerem Ausmaße eintritt. Das Streckgrenzenverhältnis ist dabei ein Maß für die Steifigkeit des Bandes. Für eine gute Handhabung, insbesondere von dünnen Bändern, muß die Steifheit ausreichend hoch sein. Daher ist das erfindungsgemäß hergestellte Offsetband dem bisher für diese Zwecke verwendeten Material überlegen, das nach der für Offsetzwecke häufig angewendeten Einbrenntemperatur keine ausreichende Steifigkeit aufweist.The comparative experiment shows that the method according to the invention leads to an offset band which has the surface suitable for electrochemical roughening with very favorable mechanical properties. When magnesium, beryllium and / or copper are added, the mechanical properties can be improved to such an extent that the decrease in strength that would otherwise be expected after a thermal treatment of more than 200 ° C. is only delayed and occurs to a much lesser extent. The yield point ratio is a measure of the stiffness of the belt. The stiffness must be sufficiently high for good handling, in particular of thin strips. The offset tape produced according to the invention is therefore superior to the material hitherto used for these purposes, which does not have sufficient rigidity after the stoving temperature frequently used for offset purposes.

Claims (7)

1. Aluminium-Offsetband mit globulitisch rekristallisiertem und anschließend kaltverformten Gefüge, gekennzeichnet durch eine Kernzone aus streifigem Walzgefüge von einer in Walzrichtung gelängten Kornstruktur und einer beidseitigen, parallel zur Walzrichtung ausgebildeten Oberflächenzone aus vorwiegend globulitisch rekristallisiertem Gefüge mit einer Streckung s < 8.1.Aluminium offset strip with globulitically recrystallized and then cold-formed structure, characterized by a core zone made of streaked roll structure with a grain structure elongated in the rolling direction and a surface zone on both sides, parallel to the rolling direction, of predominantly globulitically recrystallized structure with an elongation s <8. 2. Aluminium-Offsetband nach Anspruch 1, dadurch gekennzeichnet, daß die Streckung in der Kernzone s ≧ 16 beträgt.2. Aluminum offset tape according to claim 1, characterized in that the stretching in the core zone is s ≧ 16. 3. Aluminium-Offsetband nach Anspruch 1, dadurch gekennzeichnet, daß Magnesium mit Gehalten von 0,03 bis 0,4 %, Beryllium oder Kupfer mit Gehalten von 0,05 bis 0,25 % anwesend sind.3. Aluminum offset tape according to claim 1, characterized in that magnesium with contents of 0.03 to 0.4%, beryllium or copper with contents of 0.05 to 0.25% are present. 4. Aluminium-Offsetband nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Oherflächenzone insgesamt 10 bis 30 % des Gesamtquerschnittes einnimmt.4. Aluminum offset tape according to one of the preceding claims, characterized in that the outer surface zone takes up a total of 10 to 30% of the total cross section. 5. Verfahren zur Herstellung eines Offsetbandes nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Barren von 400 bis 600 mm Dicke bei Temperaturen von 550 bis 480° C warmgewalzt wird; die Warmbandausbringungstemperatur oberhalb von 320° C liegt; die Warmbandenddicke weniger als 3,5 mm beträgt; das auf Raumtemperatur abgekühlte Aluminiumband ohne Zwischenglühung mit einem Abwalzgrad von 80 bis 90 %, bezogen auf die Warmbandenddicke, kalt auf Enddicke gewalzt wird. 5. A method for producing an offset tape according to one of the preceding claims, characterized in that a billet of 400 to 600 mm in thickness is hot rolled at temperatures of 550 to 480 ° C; the hot strip application temperature is above 320 ° C; the hot strip end thickness is less than 3.5 mm; the aluminum strip, cooled to room temperature, is cold rolled to final thickness without intermediate annealing with a degree of rolling of 80 to 90%, based on the final hot strip thickness. 6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Warmbandenddicke 2,5 - 3,5 mm beträgt.6. The method according to claim 5, characterized in that the hot strip end thickness is 2.5 - 3.5 mm. 7. verfahren nach Ansprüchen 5 oder 6, dadurch gekennzeichnet, daß bei einem Offsetband aus 0,03 bis 0,4 % Mg, 0,05 bis 0,25 % Cu oder 0,03 bis 0,4 % Be eine anschließende Warmbehandlung von 200 bis 240° C für 10 bis 15 Minuten durchgeführt wird.7. The method according to claims 5 or 6, characterized in that with an offset band of 0.03 to 0.4% Mg, 0.05 to 0.25% Cu or 0.03 to 0.4% Be a subsequent heat treatment of 200 to 240 ° C for 10 to 15 minutes.
EP86100479A 1985-03-02 1986-01-16 Aluminium foil for offset printing and process for its manufacture Expired - Lifetime EP0193710B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100479T ATE65214T1 (en) 1985-03-02 1986-01-16 ALUMINUM OFFSET STRIP AND PROCESS FOR ITS PRODUCTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3507402 1985-03-02
DE19853507402 DE3507402A1 (en) 1985-03-02 1985-03-02 ALUMINUM OFFSET TAPE AND METHOD FOR THE PRODUCTION THEREOF

Publications (3)

Publication Number Publication Date
EP0193710A2 true EP0193710A2 (en) 1986-09-10
EP0193710A3 EP0193710A3 (en) 1988-08-03
EP0193710B1 EP0193710B1 (en) 1991-07-17

Family

ID=6264006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100479A Expired - Lifetime EP0193710B1 (en) 1985-03-02 1986-01-16 Aluminium foil for offset printing and process for its manufacture

Country Status (6)

Country Link
US (1) US4715903A (en)
EP (1) EP0193710B1 (en)
JP (1) JPS61201747A (en)
AT (1) ATE65214T1 (en)
DE (1) DE3507402A1 (en)
ES (1) ES8705928A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603476A3 (en) * 1992-11-20 1995-03-29 Fuji Photo Film Co Ltd Plate support for planographic printing and manufacturing process.
EP0657559A1 (en) * 1993-12-13 1995-06-14 Nippon Light Metal Co., Ltd. Aluminum alloy substrate for electrolytically grainable lithographic printing plate and process of producing same
EP0821074A1 (en) * 1996-07-25 1998-01-28 Alusuisse Technology &amp; Management AG Process for producing a strip of an aluminium alloy for lithographic printing plates
EP0887430B2 (en) † 1997-06-26 2009-06-24 Sky Aluminium Co., Ltd. Aluminum alloy support for lithographic printing plate

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3714059C3 (en) * 1987-04-28 1995-12-07 Vaw Ver Aluminium Werke Ag Material in ribbon or plate form and process for its production and its use as a support for planographic printing forms
JPS6465242A (en) * 1987-09-04 1989-03-10 Nippon Light Metal Co Scroll made of aluminum alloy
US5664023A (en) * 1994-11-14 1997-09-02 Jbl Incorporated Low TCR wire in high power audio coils
JPH09207467A (en) 1996-02-02 1997-08-12 Fuji Photo Film Co Ltd Manufacture of lithographic printing plate support
KR100226283B1 (en) * 1997-07-11 1999-10-15 차희선 Aluminium cast iron
JP3693485B2 (en) 1998-03-09 2005-09-07 日本軽金属株式会社 Manufacturing method of aluminum alloy base plate for lithographic printing plate
DE19902527B4 (en) * 1999-01-22 2009-06-04 Hydro Aluminium Deutschland Gmbh Printing plate support and method for producing a printing plate support or an offset printing plate
DE19956692B4 (en) 1999-07-02 2019-04-04 Hydro Aluminium Deutschland Gmbh litho
JP2002307849A (en) 2001-02-09 2002-10-23 Fuji Photo Film Co Ltd Lithographic printing plate original plate
DE602006001142D1 (en) 2005-04-13 2008-06-26 Fujifilm Corp Method for producing a planographic printing plate support
BRPI0617702B8 (en) 2005-10-19 2023-01-10 Hydro Aluminium Deutschland Gmbh PROCESS FOR THE PRODUCTION OF AN ALUMINUM RIBBON FOR LITHOGRAPHIC PRINTING PLATE SUPPORTS
SI2067871T2 (en) 2007-11-30 2023-01-31 Speira Gmbh Aluminium strip for lithographic pressure plate carriers and its manufacture
JP5405475B2 (en) 2008-09-30 2014-02-05 富士フイルム株式会社 Electrolytic roughening treatment method and electrolytic roughening treatment apparatus
EP2192202B2 (en) 2008-11-21 2022-01-12 Speira GmbH Aluminium sheet for lithographic printing plate support having high resistance to bending cycles
EP2448024A1 (en) 2009-06-26 2012-05-02 FUJIFILM Corporation Light reflecting substrate and process for manufacture thereof
EP2518190A1 (en) 2009-12-25 2012-10-31 FUJIFILM Corporation Insulated substrate, process for production of insulated substrate, process for formation of wiring line, wiring substrate, and light-emitting element
US8100622B2 (en) * 2010-02-02 2012-01-24 Rainbow Conversion Technologies, Llc Articulated lift arm

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH240642A (en) * 1944-07-31 1946-01-15 Aluminium Ind Ag Aluminum alloy.
US2821014A (en) * 1951-05-31 1958-01-28 Aluminum Co Of America Composite aluminous metal article
NO120955B (en) * 1968-09-27 1970-12-28 Ver Leichtmetallwerke Gmbh
DE1929146A1 (en) * 1969-06-09 1972-02-24 Vaw Leichtmetall Gmbh Aluminium alloy for off set press blocks
FR2113782B1 (en) * 1970-11-16 1973-06-08 Pechiney
US3944439A (en) * 1974-03-18 1976-03-16 Swiss Aluminium Limited Method of preparing high fatigue strength aluminum alloy
JPS5528874A (en) * 1978-08-23 1980-02-29 Kubota Ltd Preparation of inorganic extruding moldings with pattern
DE3378063D1 (en) * 1982-06-01 1988-10-27 Fuji Photo Film Co Ltd Aluminium alloy, a support of lithographic printing plate and a lithographic printing plate using the same
JPS59133355A (en) * 1983-01-20 1984-07-31 Kobe Steel Ltd Manufacture of aluminum alloy for printing
JPS605861A (en) * 1983-06-22 1985-01-12 Furukawa Alum Co Ltd Production of base for lithographic printing plate

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603476A3 (en) * 1992-11-20 1995-03-29 Fuji Photo Film Co Ltd Plate support for planographic printing and manufacturing process.
EP0657559A1 (en) * 1993-12-13 1995-06-14 Nippon Light Metal Co., Ltd. Aluminum alloy substrate for electrolytically grainable lithographic printing plate and process of producing same
US5562784A (en) * 1993-12-13 1996-10-08 Nippon Light Metal Company, Ltd. Aluminum alloy substrate for electrolytically grainable lithographic printing plate and process for producing same
EP0821074A1 (en) * 1996-07-25 1998-01-28 Alusuisse Technology &amp; Management AG Process for producing a strip of an aluminium alloy for lithographic printing plates
US6439295B1 (en) 1996-07-25 2002-08-27 Alcan Technology & Management Ltd. Process for manufacturing a strip of aluminum alloy for lithographic printing plates
US6655282B2 (en) 1996-07-25 2003-12-02 Alcan Technology & Management Ltd. Process for manufacturing a strip of aluminium alloy for lithographic printing plates
EP0887430B2 (en) † 1997-06-26 2009-06-24 Sky Aluminium Co., Ltd. Aluminum alloy support for lithographic printing plate

Also Published As

Publication number Publication date
ES8705928A1 (en) 1987-05-16
EP0193710B1 (en) 1991-07-17
JPS61201747A (en) 1986-09-06
EP0193710A3 (en) 1988-08-03
ES550328A0 (en) 1987-05-16
DE3507402A1 (en) 1986-09-04
DE3507402C2 (en) 1988-01-28
US4715903A (en) 1987-12-29
ATE65214T1 (en) 1991-08-15
JPH05462B2 (en) 1993-01-06

Similar Documents

Publication Publication Date Title
EP0193710B1 (en) Aluminium foil for offset printing and process for its manufacture
DE69805510T2 (en) METHOD FOR PRODUCING ALUMINUM ALLOY SHEET
EP1065071B1 (en) Aluminum alloy strip used for making lithographic plate and method of production
DE68923101T2 (en) Aluminum objects with improved corrosion resistance.
DE3232810A1 (en) ALUMINUM ALLOY PRINTING PLATE AND METHOD FOR THEIR PRODUCTION
DE69916456T2 (en) HIGHLY CONDUCTIVE ALUMINUM ALLOY FOR COOLING RIBS
DE69828435T2 (en) METHOD OF MAKING BASE MATERIAL FOR ALUMINUM ALLOY FILMS
EP0223737A1 (en) Support for a lithographic printing plate
DE69402496T2 (en) Process for the production of sheet metal from an Al alloy, which has a delayed natural aging, excellent ductility and bake hardenability
DE69324413T2 (en) Process for the production of a support for planographic printing plates
DE69403760T2 (en) Substrate for an electrolytically roughened lithographic printing plate and process for the production thereof
EP0170078B1 (en) Support for lithograhic printing plates made from an aluminium alloy, and printing plate of this material
EP1937860B1 (en) Aluminum strip for lithographic printing plate supports
EP0140827B1 (en) Process for the manufacture of fine grain-textured aluminium rolling mill products
DE3505282A1 (en) Aluminium alloy sheet for plates of good suitability for plating
DE60213951T2 (en) PREPARATION OF HIGH-WET FILMS FROM ALUMINUM ALLOYS WITH GOOD SLABILITY
DE69014935T2 (en) Process for producing hardened aluminum alloy sheets with high strength and very good corrosion resistance.
DE2632439A1 (en) PROCESS FOR PRODUCING A STEEL SHEET COATED WITH ALUMINUM OR AN ALUMINUM ALLOY
DE2511831A1 (en) ALUMINUM ALLOY AND METHOD FOR TREATING IT
DE3212181A1 (en) Steel support for a lithographic printing plate, and method of producing it
DE3027600A1 (en) METHOD FOR PRODUCING A LITHOGRAPHIC PLATE CONSTRUCTING AN ALUMINUM ALLOY
DE68905988T2 (en) ALUMINUM ALLOY FOR MAGNETIC DISK SUBSTRATES WITH EXCELLENT PLATABILITY.
DE69206444T2 (en) Process for the production of copper-beryllium alloys and copper-beryllium alloys produced by this process.
DE69320312T2 (en) Carrier for a planographic printing plate and manufacturing process therefor
DE3544632A1 (en) ALUMINUM-BASED ALLOY FOR THE HEAD ROLLER OF VIDEO CASSETTE RECORDS, METHOD FOR THEIR PRODUCTION AND THE HEAD ROLLER MADE THEREOF

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19890118

17Q First examination report despatched

Effective date: 19900613

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 65214

Country of ref document: AT

Date of ref document: 19910815

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITF It: translation for a ep patent filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 86100479.4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000118

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000119

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000120

Year of fee payment: 15

Ref country code: AT

Payment date: 20000120

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000121

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20010109

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010131

BERE Be: lapsed

Owner name: VEREINIGTE ALUMINIUM-WERKE A.G.

Effective date: 20010131

EUG Se: european patent has lapsed

Ref document number: 86100479.4

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010928

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020116

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20050127

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050128

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20050131

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20060115

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20060116

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20060116