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WO2010057959A1 - Bande d'aluminium pour porte-plaque d'impression lithographique ayant une grande résistance à la flexion alternée - Google Patents

Bande d'aluminium pour porte-plaque d'impression lithographique ayant une grande résistance à la flexion alternée Download PDF

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Publication number
WO2010057959A1
WO2010057959A1 PCT/EP2009/065508 EP2009065508W WO2010057959A1 WO 2010057959 A1 WO2010057959 A1 WO 2010057959A1 EP 2009065508 W EP2009065508 W EP 2009065508W WO 2010057959 A1 WO2010057959 A1 WO 2010057959A1
Authority
WO
WIPO (PCT)
Prior art keywords
aluminum alloy
aluminum
printing plate
plate supports
lithographic printing
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.)
Ceased
Application number
PCT/EP2009/065508
Other languages
German (de)
English (en)
Inventor
Bernhard Kernig
Jochen Hasenclever
Henk-Jan Brinkman
Gerd Steinhoff
Christoph Settele
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.)
Hydro Aluminium Deutschland GmbH
Original Assignee
Hydro Aluminium Deutschland GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40445590&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010057959(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hydro Aluminium Deutschland GmbH filed Critical Hydro Aluminium Deutschland GmbH
Priority to JP2011536870A priority Critical patent/JP2012509404A/ja
Priority to BRPI0922063A priority patent/BRPI0922063B8/pt
Priority to CN200980146724.4A priority patent/CN102308011B/zh
Publication of WO2010057959A1 publication Critical patent/WO2010057959A1/fr
Priority to US13/112,588 priority patent/US10927437B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • 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
    • 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
    • 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
    • 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

Definitions

  • Aluminum strip for lithographic printing plate supports with high flexural fatigue resistance
  • the invention relates to an aluminum alloy for the production of lithographic printing plate supports and to an aluminum strip produced from the aluminum alloy, to a method for producing the aluminum strip and to its use for the production of lithographic printing plate supports.
  • Lithographic printing plate supports are predominantly made of aluminum alloys, with typical thicknesses of the printing plate supports being between 0.15 and 0.5 mm.
  • typical thicknesses of the printing plate supports being between 0.15 and 0.5 mm.
  • the printing plate support must be as large as possible in order to maximize the printing area per pressure. Since the printing plate supports are made of aluminum strips, they are naturally limited in their width to slightly less than the width of the aluminum strip. Therefore, the clamping of the printing plate supports in printing machines increasingly takes place transversely to the rolling direction, so that in particular the flexural fatigue resistance of the printing plate supports transversely to the rolling direction becomes more important. In addition to a good one
  • the applied photosensitive layer is usually baked at temperatures between 220 0 C and 300 0 C at annealing times of 3 to 10 minutes.
  • the baking process of the photosensitive layer must not lead to an excessive loss of strength in the printing plate support, so that the printing plate support is still easy to handle and can be easily clamped in a printing device.
  • the printing plate support must have a high stability in the printing device to allow the highest possible number of prints.
  • a printing plate support must therefore have a sufficient bending fatigue strength, so that plate outliers are excluded due to mechanical overload of the printing plate support. Above all, the bending fatigue strength across the rolling direction is becoming increasingly important, since many printing plate supports are clamped perpendicular to the rolling direction and bends do not occur longitudinally but transversely to the rolling direction.
  • European Patent EP 1 065 071 B1 which is based on the Applicant, discloses a ribbon for the production of lithographic printing plate supports, which is characterized by good roughening combined with a high flexural fatigue resistance and a sufficient thermal stability after a burn-in process. Due to the increasing size of the printing presses and the resulting increase in the number of printing plate supports required, however, the need has arisen for the properties of this aluminum alloy and the one produced therefrom Print plate carrier continues to improve without the
  • Another international patent application to the applicant discloses an aluminum alloy for the production of lithographic printing plate supports which has a relatively high iron content of 0.4% by weight to 1% by weight and a relatively high manganese content of up to 0.3% by weight. % allows.
  • This aluminum alloy has been particularly in terms of their strength properties after a
  • the present invention has the object to provide an aluminum alloy and an aluminum strip made of an aluminum alloy, which or which the production of printing plate supports with improved
  • the present invention has the object, a manufacturing method for a
  • an aluminum alloy for producing lithographic printing plate supports in that the aluminum alloy has the following alloy components in weight percent:
  • the aluminum alloy according to the invention in particular provides increased bending fatigue resistance at constant tensile strength values after a baking process transverse to the rolling direction.
  • Bending resistance transverse to the rolling direction can be increased with the aluminum alloy according to the invention in comparison to previously used aluminum alloys by more than 40%. It is believed that the combination of relatively high levels of magnesium and iron in the aluminum alloy of the present invention are responsible for the improved flex life. Problems, which were expected in particular with regard to the roughening of an aluminum strip produced from the specified aluminum alloy, surprisingly did not occur. Despite the high Mg content of 0.3 wt .-% to 1 wt .-% were no problems in the Aufrauley, especially no streaks to determine.
  • the improved flexural fatigue resistance transverse to the rolling direction is attributed to the combination of iron levels of greater than 0.4 wt.% To 1 wt.% With magnesium levels greater than 0.3 wt.% To 1 wt.%. Above 1% by weight of magnesium or iron, significant problems are expected in the roughening of lithographic printing plate supports.
  • silicon causes a high number of sufficiently deep depressions during electrochemical etching, so that optimum absorption of the photosensitive coating is ensured.
  • Copper should be limited to a maximum of 0.04 wt .-% in order to avoid inhomogeneous structures when roughening. Titanium is introduced only for grain refining and leads at roughening levels higher than 0.1 wt .-% to roughening problems. On the other hand, manganese, in cooperation with iron, can improve properties of an aluminum strip made of the aluminum alloy after a baking process, unless the proportion exceeds 0.25 wt%. Above 0.25% by weight, coarse precipitates are expected to deteriorate roughening properties.
  • the aluminum alloy has the following Fe content in percent by weight:
  • Aluminum alloys with the stated iron contents showed, in addition to an increase in flexural fatigue resistance from the hard-rolling state to the state after a baking process transversely to the rolling direction, a very process-safe roughening behavior.
  • the aluminum alloy preferably has the following Mg content in percent by weight:
  • Mg contents lead to improved mechanical properties, especially after a burn-in process. This effect becomes evident at Mg contents of at least 0.4% by weight.
  • An upper limit of 0.65 wt .-% results in an optimal compromise of increasing the strength with high flexural fatigue resistance of the aluminum alloy across
  • Mg contents above 1% by weight promote the formation of stripes when roughening the aluminum strip. In experiments, however, no signs of problematic roughening properties were found at Mg contents of between 0.4% by weight and 0.65% by weight. Magnesium contents of between 0.65% by weight and 1% by weight also provide outstanding properties in terms of bending resistance transverse to the rolling direction, but process control in roughening may become more difficult owing to the increasing tendency to form streaks.
  • the microstructure of the aluminum alloy can be further improved in that the aluminum alloy has the following alloy components in weight percent:
  • the production properties of the aluminum alloy with regard to the casting of the rolling ingot and the grain refining are improved by the stated contents of the alloy components. Due to its less electrochemical properties, zinc has a particularly strong influence on the roughening properties and should therefore be limited to a maximum of 0.05% by weight. Chromium contents of at least 0.01% by weight lead to precipitation formation and also negatively influence the roughening.
  • the aluminum alloy has an Mn content of at most 0.1 wt .-%, preferably at most 0.05 wt .-%. Due to the high Mg and Fe contents of the aluminum alloy, manganese in the aluminum alloy according to the invention contributes only insignificantly to the improvement of the tensile strength values after a baking process and can therefore be reduced to a minimum.
  • lithographic printing plate supports consisting of an aluminum alloy according to the invention with a thickness from 0.15 mm to 0.5 mm.
  • the aluminum strip according to the invention is characterized, as already stated, by an excellent flexural fatigue resistance transverse to the rolling direction, in particular also after a baking process.
  • the aluminum strip In the hard-rolled state, the aluminum strip has a tensile strength Rm of less than 200 MPa along the rolling direction and after a baking process at a temperature of 280 ° C. and a duration of 4 minutes has a tensile strength Rm of more than 140 MPa and a bending resistance transverse to the rolling direction of at least 2000 cycles in Biege Assistantnest, so the aluminum strip is particularly advantageous for the production of oversized lithographic printing plate carriers used.
  • the printing plate supports are then particularly easy to handle both in hard as well as after a burn-in.
  • the pressure plate carriers produced therefrom have an improved service life.
  • the rolling ingot is achieved by a method for producing an aluminum strip for lithographic printing plate support comprising an inventive aluminum alloy in which a rolling ingot is cast, optionally at a temperature of 45O 0 C and 61O 0 C is homogenized, the roll ingot is hot rolled to a thickness of 2 to 9 mm and the hot strip is cold rolled with or without intermediate annealing at a final thickness of 0.15 mm to 0.5 mm.
  • the intermediate annealing if an intermediate annealing is carried out, takes place in such a way that a desired final strength of the aluminum strip in a hard-hard state is set by the subsequent cold-rolling process to final thickness. As already mentioned, this is preferably just below 200 MPa.
  • the intermediate annealing is carried out at an intermediate thickness of 0.5 mm to 2.8 mm, wherein the intermediate annealing takes place in a coil or in a continuous furnace at a temperature of 230 0 C to 470 0 C.
  • the final strength of the aluminum strip can be adjusted.
  • the use of the aluminum alloy according to the invention for the production of a ribbon for lithographic printing plate support the
  • Table 1 shows the alloy compositions of two
  • Aluminum alloys VI, V2 which have as comparative examples compositions so far used for printing plate support aluminum alloys.
  • the aluminum alloys II to 14 according to the invention have significantly higher magnesium and iron values.
  • From the alloys Vl, to 14 rolled bars were poured. The ingot was then homogenized at a temperature of 450 0 C to 610 0 C and hot rolled to a thickness of 4 mm. Subsequently, a cold rolling to a final thickness of 0.28 mm.
  • the comparative alloy V2 was used during the
  • FIG. 1a shows the bending change test device 1 used in a schematic sectional view.
  • samples 2 are fastened in the bending cycle test device 1 on a movable segment 3 and a stationary segment 4.
  • the mobile one Segment 3 is reciprocated in the bending change test on the fixed segment 4 by a rolling movement, so that the sample 2 bends is exposed perpendicular to the extension of the sample 2, Fig Ib).
  • the samples need only be cut transversely to the rolling direction and clamped in the device. The same applies to samples cut out along the rolling direction.
  • the radius of the bending segments 3, 4 is 30 mm.
  • the aluminum alloys II to 14 according to the invention also show the tensile strength values required for the handling of the printing plate supports, in particular when using oversized printing plate supports clamped transversely to the rolling direction.
  • the aluminum strips II to 14 have tensile strengths Rm measured in accordance with DIN of less than 200 MPa, so that a coil set can be removed in a simple manner.
  • the tensile strength Rm of the aluminum strips Il to 14 according to the invention is still more than 140 MPa in order to facilitate clamping large printing plate supports in printing devices. This also applies to the measured according to DIN yield strength Rp 2, which is more than 130 MPa in the as-rolled state is less than 195 MPa, and after the baking at 280 0 C for 4 minutes.
  • the values for the tensile strength and yield strength of the aluminum strips are dependent on the process parameters in the production of the aluminum strips.
  • the aluminum alloys according to the invention allow the preferred values to be achieved in a simple manner, for example with an intermediate annealing at 1.1 mm, and nevertheless to provide outstanding flexural fatigue properties at very good strength values.

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

Abstract

L'invention porte sur un alliage d'aluminium pour la fabrication de porte-plaques d'impression lithographique, ainsi que sur une bande d'aluminium fabriquée à partir de l'alliage d'aluminium, sur un procédé de fabrication de la bande d'aluminium, ainsi que sur son utilisation pour la fabrication de porte-plaques d'impression lithographique. L'objectif est de mettre à disposition un alliage d'aluminium ainsi qu'une bande d'aluminium en un alliage d'aluminium, qui permettent la fabrication de porte-plaques d'impression ayant une résistance améliorée à la flexion alternée transversalement à la direction des cylindres, sans dégrader les valeurs de la résistance à la traction avant et après l'opération de cuisson, pour des propriétés de rugosité constantes. Cet objectif est atteint par le fait que l'alliage d'aluminium présente les composants d'alliage suivants, en pour cent en poids : 0,4 % < Fe ≤ 1,0 %, 0,3 % < Mg ≤ 1,0 %, 0,05 % ≤ Si ≤ 0,25 %, Mn ≤ 0,25 %, Cu ≤ 0,04 %, Ti < 0,1 %, le reste étant constitué par Al et les impuretés inévitables ayant chacune une concentration maximale de 0,01 % pour un total maximal de 0,05 %.
PCT/EP2009/065508 2008-11-21 2009-11-19 Bande d'aluminium pour porte-plaque d'impression lithographique ayant une grande résistance à la flexion alternée Ceased WO2010057959A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2011536870A JP2012509404A (ja) 2008-11-21 2009-11-19 リソグラフ印刷プレート支持体用の高い曲げ疲労強度を有するアルミニウムストリップ
BRPI0922063A BRPI0922063B8 (pt) 2008-11-21 2009-11-19 Tira de alumínio para produção de suportes de chapas de impressão litográfica de uma liga de alumínio, uso da tira e processo para a produção de uma tira
CN200980146724.4A CN102308011B (zh) 2008-11-21 2009-11-19 具有高交变弯曲耐受性的用于平版印刷的印版载体的铝带
US13/112,588 US10927437B2 (en) 2008-11-21 2011-05-20 Aluminium strip for lithographic printing plate supports with high flexural fatigue strength

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08105850.5A EP2192202B2 (fr) 2008-11-21 2008-11-21 Bande en aluminium pour support de plaque d'impression lithographique à haute résistance à la flexion alternée
EP08105850.5 2008-11-21

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/112,588 Continuation US10927437B2 (en) 2008-11-21 2011-05-20 Aluminium strip for lithographic printing plate supports with high flexural fatigue strength

Publications (1)

Publication Number Publication Date
WO2010057959A1 true WO2010057959A1 (fr) 2010-05-27

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PCT/EP2009/065508 Ceased WO2010057959A1 (fr) 2008-11-21 2009-11-19 Bande d'aluminium pour porte-plaque d'impression lithographique ayant une grande résistance à la flexion alternée

Country Status (8)

Country Link
US (1) US10927437B2 (fr)
EP (1) EP2192202B2 (fr)
JP (1) JP2012509404A (fr)
KR (1) KR20110094317A (fr)
CN (1) CN102308011B (fr)
BR (1) BRPI0922063B8 (fr)
ES (1) ES2587024T3 (fr)
WO (1) WO2010057959A1 (fr)

Cited By (1)

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CN109072389A (zh) * 2016-04-20 2018-12-21 海德鲁铝业钢材有限公司 具有高冷轧压下率的平版印刷带材制造

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CN104364401B (zh) * 2012-05-11 2017-03-15 株式会社Uacj 铝合金箔及其制造方法、成形包装体材料、二次电池、医药品包装容器
CN103667819B (zh) * 2013-11-22 2015-09-16 中铝瑞闽股份有限公司 Ctp版基及其制作方法
US10695450B2 (en) 2016-07-26 2020-06-30 Laboratoires Cyclopharma Synthesis of a radioactive agent composition
CN107868887A (zh) * 2016-09-23 2018-04-03 镇江龙源铝业有限公司 一种led灯具用铝带新材料
CN109652689A (zh) * 2019-02-26 2019-04-19 国际铝业(厦门)有限公司 一种具有高抗弯强度的铝合金型材及其制备方法
CN115349022B (zh) * 2020-03-26 2024-07-09 斯佩拉有限公司 具有扁平形貌的平版印刷带和由其制成的印刷版
RU2749101C1 (ru) * 2020-08-07 2021-06-04 Федеральное государственное бюджетное учреждение науки Самарский федеральный исследовательский центр Российской академии наук (СамНЦ РАН) СПОСОБ ХОЛОДНОЙ МНОГОПРОХОДНОЙ ПРОКАТКИ ТОНКИХ ЛЕНТ ИЗ АЛЮМИНИЕВЫХ СПЛАВОВ Al-Mg

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EP1880861A1 (fr) * 2006-07-21 2008-01-23 Hydro Aluminium Deutschland GmbH Bande d'aluminium pour support de plaque lithographique
US20080035488A1 (en) * 2006-03-31 2008-02-14 Martin Juan Francisco D R Manufacturing process to produce litho sheet

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EP0239995A2 (fr) * 1986-04-01 1987-10-07 Furukawa Aluminum Co., Ltd. Alliage d'aluminium pour plaque d'impression lithographique
EP0272528A2 (fr) * 1986-12-08 1988-06-29 Aluminum Company Of America Procédé pour la fabrication de plaques lithographiques
EP1065071A1 (fr) * 1999-07-02 2001-01-03 VAW aluminium AG Bande en alliage d'aluminium pour plaques d'impression lithographique et procédé pour sa préparation
US20080035488A1 (en) * 2006-03-31 2008-02-14 Martin Juan Francisco D R Manufacturing process to produce litho sheet
EP1880861A1 (fr) * 2006-07-21 2008-01-23 Hydro Aluminium Deutschland GmbH Bande d'aluminium pour support de plaque lithographique

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109072389A (zh) * 2016-04-20 2018-12-21 海德鲁铝业钢材有限公司 具有高冷轧压下率的平版印刷带材制造
CN109072389B (zh) * 2016-04-20 2020-05-19 海德鲁铝业钢材有限公司 具有高冷轧压下率的平版印刷带材制造
US10696040B2 (en) 2016-04-20 2020-06-30 Hydro Aluminium Rolled Products Gmbh Litho strip with high cold-rolling pass reduction

Also Published As

Publication number Publication date
CN102308011A (zh) 2012-01-04
JP2012509404A (ja) 2012-04-19
EP2192202B2 (fr) 2022-01-12
BRPI0922063B1 (pt) 2021-05-04
US10927437B2 (en) 2021-02-23
EP2192202A1 (fr) 2010-06-02
US20110290381A1 (en) 2011-12-01
EP2192202B1 (fr) 2016-07-06
ES2587024T3 (es) 2016-10-20
BRPI0922063B8 (pt) 2023-01-10
CN102308011B (zh) 2015-11-25
KR20110094317A (ko) 2011-08-23
EP2192202B9 (fr) 2016-11-30
BRPI0922063A2 (pt) 2015-12-15

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