EP0223737B1 - Support pour plaque d'impression lithographique - Google Patents

Support pour plaque d'impression lithographique Download PDF

Info

Publication number
EP0223737B1
EP0223737B1 EP86810460A EP86810460A EP0223737B1 EP 0223737 B1 EP0223737 B1 EP 0223737B1 EP 86810460 A EP86810460 A EP 86810460A EP 86810460 A EP86810460 A EP 86810460A EP 0223737 B1 EP0223737 B1 EP 0223737B1
Authority
EP
European Patent Office
Prior art keywords
alloy
content
printing plate
lithographic printing
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86810460A
Other languages
German (de)
English (en)
Other versions
EP0223737A1 (fr
Inventor
Theodore J. Crona
Heinz Bichsel
Jürgen Timm
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.)
Alcan Holdings Switzerland AG
Original Assignee
Schweizerische Aluminium 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 Schweizerische Aluminium AG filed Critical Schweizerische Aluminium AG
Publication of EP0223737A1 publication Critical patent/EP0223737A1/fr
Application granted granted Critical
Publication of EP0223737B1 publication Critical patent/EP0223737B1/fr
Expired legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium

Definitions

  • the invention relates to a support for a lithographic printing plate made from a rolled sheet consisting of an aluminum alloy with up to 2% iron.
  • a method for producing such a carrier is within the scope of the invention.
  • Lithographic printing plates generally consist of an aluminum sheet provided with a light-sensitive layer. This has to meet a number of requirements.
  • the printing plates clamped in high-speed rotary cylinders must have high tensile strength and breaking strength and must not fail mechanically even after a long period of operation of several hundred thousand passes.
  • the clamping conditions require high ductility. If the light-sensitive layer burns in, the aluminum sheet is exposed to temperatures of 220 to 270 ° C; Even after such a treatment, the sheet must have sufficient static and dynamic ability.
  • the sheet surface is roughened mechanically, chemically or electrolytically.
  • This roughening must not allow too large pores to arise, which would result in undefined absorption and release of hydraulic fluid.
  • the surface of the sheet must therefore be free of large intermetallic particles which have been separated out and also free of large accumulations of fine particles, since if they are roughened out they would leave correspondingly large pores.
  • AA 1050 with 99.5% Al
  • AA 1200 with 99.2% Al
  • AA 3003 with at least 1% Mn. While the AA 1050 and AA 1200 alloys have a good surface, but have too low a static and dynamic strength for many printing plate applications, the AA 3003 alloy leads to high strengths, but due to coarse precipitations and precipitation nests, it offers problems with higher print quality requirements.
  • Alloys with higher iron contents have also been proposed, for example in EP-A-67056 an aluminum alloy with at most 1.2% Fe, remainder aluminum and impurities in an amount of at most 0.15% each.
  • This document does not recommend even higher iron contents, since these lead to annoying coarse excretions;
  • it is recommended to use a composite as the printing plate carrier which uses the alloy mentioned only as a cover plate for a core material made of any aluminum alloy of higher strength.
  • An aluminum alloy for lithographic printing plates is known from JP-A-52 029 301, which contains 0.6 to 2% Fe, at most 0.15% Si, optionally at least 0.5% Mg, remainder aluminum and traces of contamination.
  • GB-A 1 241 673 discloses an alloy with 0.85% Fe, 0.5% Mn, the rest of commercially available aluminum with a degree of purity of 99% and impurities such as Mg, Cu, Ni, Zn, Si and Ti. The alloy becomes used for further processing by rolling and deep-drawing cans.
  • EP-A 170 078 (document according to Art. 54 (3) (4) EPC) an alloy with 1.6% Fe and 0.5% Mn is proposed for a lithographic printing plate, the remaining elements being a maximum of 0.35 % and the rest is aluminum. It is also mentioned therein that the tape is cast and the tape can be reduced to a thickness of about 0.3 mm by rolling.
  • the invention is therefore based on the object of providing a method for producing a support for lithographic printing plates from a rolled sheet made of an AIFe alloy which satisfies the high demands made on the mechanical properties and the surface quality or etchability without requiring complex additional operations . Furthermore, a method is to be created which leads to such carriers.
  • an alloy with 0.8 to 2.0% iron, 0.1 to 0.8% silicon, to 1.0% manganese, the sum of the Si and Mn contents between 0 , 3 and 1.3 is up to 0.5% copper, up to 0.8 magnesium, up to 2.0% zinc and up to 0.3% each, up to 1.0% in total, other components, the rest aluminum, in a band from 5 to 12 mm thick or by electromagnetic shaping with direct liquid cooling into a strand and processed into a sheet from 0.03 to 0.6 mm thick.
  • the alloy composition in particular the Fe, Mn and Si contents, it is possible to achieve high static and dynamic strengths of the printing plate support, even after a thermal load of up to 270 ° C during the treatment of the printing plate.
  • the selection according to the invention also leads to a uniformly fine surface structure necessary for chemical or electrolytic roughening.
  • the Als (Fe, Mn) phase that precipitates during casting remains stable due to this alloy composition and, unlike other Fe-rich aluminum alloys, is not converted into the undesired AisFe phase during subsequent heat treatments.
  • the ternary AIFeSi phase that also occurs is characterized by a fine structure. Without impairing the excellent behavior of the alloy, Cu, Mg or Zn can be added up to the specified maximum amount if the strength requirements are even higher.
  • the cooling conditions associated with the electromagnetic casting method lead to an additional refinement of the precipitation structure on the strand surface and then on the sheet metal surface, which results in an improved etching behavior in the sense of the task.
  • the carrier plate (E) according to the invention has both higher tensile strength and higher yield strength, and also higher elongation than the comparative plates (V1) and (V2).
  • the strength and yield strength of (E) are only exceeded by the comparative plate (V3), but this has a much lower elongation.
  • the sheets annealed for 3 hours at 270 ° C. show the different softening behavior of the variant (E) according to the invention on the one hand and the comparison variants (V1) and (V2) on the other; (E) has only a slightly lower elongation at break with higher strength and much higher yield strength.
  • the comparative sheet (V3) also exceeds (E) when annealed in terms of strength and yield strength and is considerably inferior to this in terms of elongation at break.
  • the carrier plate (E) corresponds to the comparison plate (V1).
  • the lateral spacing of the roughness peaks in (E) is, however, about 25% less than in (V1), expression of a finer surface structure.
  • the height difference between the highest peaks and the deepest valleys in (V1) is 25% greater than in (E) and therefore already poses an increased risk of uncontrolled deposits of hydraulic fluid.
  • the comparative plate (V3) has an average roughness which is about 50% higher; the maximum height difference is 125% above the corresponding value at (E) or 80% above (V1).
  • the carrier sheets according to the invention combine high static and dynamic strength and high ductility with excellent etching behavior.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (4)

1. Procédé pour la fabrication d'un support pour une plaque d'impression lithographique à partir d'une tôle laminée d'un alliage AIFe, caractérisé en ce qu'un alliage à 0,8-2,0% de fer, 0,1-0,8% de silicium, jusqu'à 1,0% de manganèse, la somme des teneurs en silicium et en manganèse étant comprise entre 0,3 et 1,3%, jusqu'à 0,5% de cuivre, jusqu'à 0,8% de magnésium, jusqu'à 2,0% de zinc et chaque fois jusqu'à 0,3% et au total jusqu'à 1,0% d'autres constituants, le reste d'aluminium, est coulé en une bande de 5 à 12 mm d'épaisseur et transformé en une tôle laminée de 0,03 à 0,6% mm d'épaisseur.
2. Procédé pour la fabrication d'un support pour une plaque d'impression lithographique à partir d'une tôle laminée d'un alliage AIFe, caractérisé en ce qu'un alliage à 0,8-2,0% de fer, 0,1-0,8% de silicium, jusqu'à 1,0% de manganèse, la somme des teneurs en silicium et en manganèse étant comprise entre 0,3 et 1,3%, jusqu'à 0,5% de cuivre, jusqu'à 0,8% de magnésium, jusqu'à 2,0% de zinc et chaque fois jusqu'à 0,3% et au total jusqu'à 1,0% d'autres constituants, le reste d'aluminium, est coulé en une barre par mise en forme électromagnétique avec refroidissement direct par un liquide et transformé en une tôle laminée de 0,03 à 0,6 mm d'épaisseur.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on transforme un alliage ayant une teneur en Fe de 1,1 à 1,8%, une teneur en Mn de 0,25 à 0,6%, une teneur en Si de 0,1 à 0,4% et une teneur en Cu de 0,3% au plus.
4. Procédé selon la revendication 3, caractérisé en ce que le rapport pondéral de la teneur en Fe à la teneur en Mn est compris entre 2,5 et 4,5.
EP86810460A 1985-10-30 1986-10-17 Support pour plaque d'impression lithographique Expired EP0223737B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH466885 1985-10-30
CH4668/85 1985-10-30

Publications (2)

Publication Number Publication Date
EP0223737A1 EP0223737A1 (fr) 1987-05-27
EP0223737B1 true EP0223737B1 (fr) 1989-12-27

Family

ID=4280382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810460A Expired EP0223737B1 (fr) 1985-10-30 1986-10-17 Support pour plaque d'impression lithographique

Country Status (4)

Country Link
US (2) US4802935A (fr)
EP (1) EP0223737B1 (fr)
CA (1) CA1305615C (fr)
DE (1) DE3667797D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712368A1 (fr) 2005-04-13 2006-10-18 Fuji Photo Film Co., Ltd. Procédé de fabrication d'un substrat pour plaque lithographique
WO2010150810A1 (fr) 2009-06-26 2010-12-29 富士フイルム株式会社 Substrat réfléchissant la lumière et son procédé de fabrication
WO2011078010A1 (fr) 2009-12-25 2011-06-30 富士フイルム株式会社 Substrat isolé, procédé de production d'un substrat isolé, procédé de formation d'une ligne de câblage, substrat de câblage et élément électroluminescent

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5188032A (en) * 1988-08-19 1993-02-23 Presstek, Inc. Metal-based lithographic plate constructions and methods of making same
JP2767711B2 (ja) * 1989-08-22 1998-06-18 富士写真フイルム株式会社 平版印刷版用支持体の製造方法
US5350010A (en) * 1992-07-31 1994-09-27 Fuji Photo Film Co., Ltd. Method of producing planographic printing plate support
US5462614A (en) * 1993-03-09 1995-10-31 Fuji Photo Film Co., Ltd. Method of producing support for planographic printing plate
CA2104335C (fr) * 1993-08-18 1999-03-16 Marcio Douglas Soares Produit en papier d'aluminium et methode de fabrication connexe
JP3454578B2 (ja) * 1993-08-31 2003-10-06 日本軽金属株式会社 平版印刷版用アルミニウム合金素板およびその製造方法
US5534356A (en) * 1995-04-26 1996-07-09 Olin Corporation Anodized aluminum substrate having increased breakdown voltage
US5820015A (en) * 1996-04-02 1998-10-13 Kaiser Aluminum & Chemical Corporation Process for improving the fillet-forming capability of brazeable aluminum articles
NL1003401C2 (nl) * 1996-06-24 1998-01-07 Hoogovens Aluminium Bv Aluminiumplaat met een goede vervormbaarheid en een werkwijze voor het vervaardigen daarvan.
EP0821074A1 (fr) * 1996-07-25 1998-01-28 Alusuisse Technology & Management AG Procédé pour la production d'une bande en alliage d'aluminium pour plaques d'impression lithographique
US6592688B2 (en) * 1998-07-23 2003-07-15 Alcan International Limited High conductivity aluminum fin alloy
US6238497B1 (en) 1998-07-23 2001-05-29 Alcan International Limited High thermal conductivity aluminum fin alloys
US6165291A (en) * 1998-07-23 2000-12-26 Alcan International Limited Process of producing aluminum fin alloy
FR2813316B1 (fr) * 2000-08-29 2002-10-18 Pechiney Rhenalu Procede de fabrication de bandes tres minces en alliage aluminium-fer
US20050260934A1 (en) * 2002-07-03 2005-11-24 Agfa-Gevaert Positive-working lithographic printing plate precursor
EP1380417B1 (fr) * 2002-07-03 2006-08-23 Agfa-Gevaert Précurseur de plaque d'impression lithographique de type positif
US20040086417A1 (en) * 2002-08-01 2004-05-06 Baumann Stephen F. High conductivity bare aluminum finstock and related process
JP4410714B2 (ja) 2004-08-13 2010-02-03 富士フイルム株式会社 平版印刷版用支持体の製造方法
EP2343402B1 (fr) 2008-09-30 2017-08-02 FUJIFILM Corporation Procédé de traitement électrolytique et dispositif de traitement électrolytique
CN102459674B (zh) 2009-05-08 2015-09-16 诺夫利斯公司 铝平版印刷片
WO2012059362A1 (fr) 2010-11-04 2012-05-10 Novelis Inc. Feuille lithographique d'aluminium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170078A1 (fr) * 1984-07-13 1986-02-05 Hoechst Aktiengesellschaft Support pour plaques d'impression en alliage d'aluminium et plaque d'impression en cette matière

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US3397044A (en) * 1967-08-11 1968-08-13 Reynolds Metals Co Aluminum-iron articles and alloys
SU554062A1 (ru) * 1974-07-03 1977-04-15 Способ получени стальных изделий
GB1524355A (en) * 1975-10-31 1978-09-13 Alcan Res & Dev Aluminium alloy sheet products
GB1524354A (en) * 1974-11-15 1978-09-13 Alcan Res & Dev Method of producing aluminium alloy sheet products
GB1499809A (en) * 1975-01-24 1978-02-01 Bicc Ltd Method of and apparatus for continuously forming metal ro
JPS586635B2 (ja) * 1975-08-30 1983-02-05 カブシキガイシヤ ニツポンケイキンゾクソウゴウケンキユウシヨ ハンザイヨウアルミニウムゴウキンソバン
GB2055895A (en) * 1979-07-20 1981-03-11 British Aluminium Co Ltd Aluminium-calcium alloys
US4353468A (en) * 1980-02-06 1982-10-12 Klingamon Lon C Portable hand stamp storage and display device
DE3030735A1 (de) * 1980-08-14 1982-03-25 Basf Ag, 6700 Ludwigshafen Verfahren zur gewinnung von caprolactam durch spaltung von oligomeren des caprolactams
JPS581047A (ja) * 1981-06-05 1983-01-06 Fuji Photo Film Co Ltd アルミニウム合金平版印刷版用支持体
JPS581592A (ja) * 1981-06-05 1983-01-06 Fuji Photo Film Co Ltd 複合アルミニウム合金平版印刷版用支持体
JPS6063340A (ja) * 1983-09-16 1985-04-11 Kobe Steel Ltd 印刷版用高強度アルミニウム合金冷間圧延板およびその製造方法
JPS6063347A (ja) * 1983-09-16 1985-04-11 Kobe Steel Ltd 印刷版用高強度アルミニウム合金冷間圧延板
EP0158941B2 (fr) * 1984-04-06 1997-12-17 Fuji Photo Film Co., Ltd. Alliage d'aluminium pour plaque d'impression

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170078A1 (fr) * 1984-07-13 1986-02-05 Hoechst Aktiengesellschaft Support pour plaques d'impression en alliage d'aluminium et plaque d'impression en cette matière

Non-Patent Citations (1)

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Title
Aluminium Taschenbuch, Aluminium-Verlag Düsseldorf, 1983, Seite 25 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712368A1 (fr) 2005-04-13 2006-10-18 Fuji Photo Film Co., Ltd. Procédé de fabrication d'un substrat pour plaque lithographique
WO2010150810A1 (fr) 2009-06-26 2010-12-29 富士フイルム株式会社 Substrat réfléchissant la lumière et son procédé de fabrication
WO2011078010A1 (fr) 2009-12-25 2011-06-30 富士フイルム株式会社 Substrat isolé, procédé de production d'un substrat isolé, procédé de formation d'une ligne de câblage, substrat de câblage et élément électroluminescent

Also Published As

Publication number Publication date
DE3667797D1 (de) 1990-02-01
CA1305615C (fr) 1992-07-28
US4800950A (en) 1989-01-31
EP0223737A1 (fr) 1987-05-27
US4802935A (en) 1989-02-07

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