WO2012117084A1 - Aluminiumband für lithografische druckplattenträger mit wasser basierenden beschichtungen - Google Patents
Aluminiumband für lithografische druckplattenträger mit wasser basierenden beschichtungen Download PDFInfo
- Publication number
- WO2012117084A1 WO2012117084A1 PCT/EP2012/053591 EP2012053591W WO2012117084A1 WO 2012117084 A1 WO2012117084 A1 WO 2012117084A1 EP 2012053591 W EP2012053591 W EP 2012053591W WO 2012117084 A1 WO2012117084 A1 WO 2012117084A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aluminum alloy
- melt
- water
- alloy strip
- chlorine
- Prior art date
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
-
- 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
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/06—Special casting characterised by the nature of the product by its physical properties
-
- 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
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12993—Surface feature [e.g., rough, mirror]
Definitions
- Aluminum tape for 1 thographic printing plate supports with water-based coatings
- the invention relates to an aluminum alloy strip for the production of printing plate supports with on water
- the invention relates to the use of from the
- Printing plate supports which are made for example of alloys of the type AA1050, AA1100, AA3103, AlMgO, 5 and others, not only in relation to the continuous use as printing plate support high mechanical requirements. After roughening the aluminum alloy strips, which usually have a maximum thickness of 0.5 mm, they are provided with coatings that are photo- and / or thermosensitive and thus the transfer of
- Water-based coatings contain water instead.
- water-containing coatings are also included under this term.
- the at least one water-based coating is applied to the aluminum alloy strip or sheet, so that after evaporation of the water a corresponding photo- or thermo-sensitive layer remains on the aluminum strip or the sheet produced therefrom.
- the present invention has the object, an aluminum alloy strip for the
- the present invention has for its object to propose an advantageous use of the aluminum alloy strip and a method for producing the aluminum alloy strip.
- the stated object for an aluminum alloy strip is achieved by preparing the aluminum alloy strip in a manner using water as a lubricant Longitudinal grinding has etched figures with cubic etching attack, the maximum length of which is 15 m.
- Print plate carriers made from the aluminum alloy strip according to the invention with a water-based coating therefore have no defects in the printed image.
- the presence of etched figures with greater longitudinal extent automatically leads to the occurrence of errors in the printing plates.
- a further increase in process safety can be ensured by the aluminum alloy strip being etched with a cubic etching attack in a longitudinal section prepared with water as a lubricant Longitudinal extension of a maximum of 10 pm, more preferably has a maximum of 5 pm.
- Aluminum alloy band remained chlorine and thus the likelihood of the formation of printing errors.
- Aluminum alloy tape is the number of etching figures with cubic etching attack on 1000 mm 2 a maximum of 350.
- the alloy composition can achieve these goals.
- the aluminum alloy is preferably added to magnesium, manganese and silicon.
- the aluminum alloy strip can therefore be further improved according to a further embodiment in that the aluminum alloy strip consists of an aluminum alloy with the following alloy constituents in% by weight:
- a further embodiment of the aluminum alloy strip may be provided by the following: the aluminum alloy of the aluminum alloy strip
- Aluminum alloy ribbon has an Mg content of 0.1% by weight - 0.3% by weight and 0.3% by weight - 0.6 Ge, respectively. -% on.
- the higher Mg contents of 0.3 wt .-% to 0.6 wt .-% are for
- Aluminum alloy strips provided, which should provide a higher strength and bending resistance during operation.
- the limitation of the Mg content of 0.1 wt .-% to 0.3 wt .-% leads to a high flexural fatigue, thermal stability and a very good roughening at medium strengths of the aluminum alloy strip at constant parameters during the production of the aluminum alloy strip.
- Printing plate carrier produced from the aluminum alloy strips according to the invention have no punctiform printing defects, which are based on an etching attack on existing
- Print plate carrier with at least one on water
- Thermal printing plate carriers are, as thermal printing plate carrier increasingly using water-based coatings produced Vierden.
- the above object is achieved for a method for producing an aluminum alloy strip according to the invention from an aluminum alloy, wherein the method for
- Production of the strip comprises the following steps: melting an aluminum master alloy using rolled scrap, pig iron, pig iron, recycled metal and / or master alloys,
- Aluminum alloy tape is needed.
- the above-described object is achieved in that the aluminum alloy is degassed during casting in a degasser with chlorine gas, wherein the melt is fed to a maximum chlorine content of 7 mg Cl / kg AI.
- a degasser with chlorine gas wherein the melt is fed to a maximum chlorine content of 7 mg Cl / kg AI.
- the aluminum alloy melt is fed to re-purify the aluminum alloy melt to be cast and, for example, to reduce the levels of sodium, lithium and calcium.
- the aluminum alloy melt also passes through a filter which comprises a packed bed filter or a ceramic foam filter.
- Degasser is supplied to clean the melt, the proportion of chlorine in the aluminum alloy and thus in the finished aluminum alloy strip decreases. It gets away
- the amount of chlorine remaining in the aluminum alloy ribbon produced according to the invention remains the size of the etching figures with cubic etching attack, as described in US Pat
- Influence of water for example, in the preparation of longitudinal cuts with water as a lubricant occur, can be limited to a maximum of 15 ym longitudinal extent.
- Aluminum alloy tapes pressure plate carrier are generated, which can be provided with water-based coatings without error, without prone to punctiform printing errors.
- the amount of chlorine is reduced to 2 to 4 mg Cl / kg Al in order to further reduce the contamination of the aluminum alloy with chlorine and the ⁇ tzfiguren in the Aluminum alloy tape with cubic etching attack to further reduce.
- the gas purging in the melting or casting furnace is carried out with addition of chlorine, wherein the supplied
- Chlorine content is not more than 40 mg Cl / kg AI. Also introduced during the gas flushing in the melting or casting furnace
- Chlorine content plays a role in the occurrence of printing errors in the printing plate carriers.
- Aluminum alloy tape for water-based coatings printing plate support are provided.
- no chlorine gas is used in the gas purging in the melting or casting furnace and in the degassing during casting in the degasser.
- the purification of the melt of sodium, lithium and calcium components is carried out by adding salts, in particular chlorides, preferably potassium chloride magnesium chloride, wherein the
- Aluminum alloy melt a maximum of 60 mg Cl / kg AI may be supplied.
- the gas flushing in the melting ⁇ or casting furnace and the degassing during casting in the degasser takes place in this case, for example
- Aluminum alloy tapes are especially for the
- Fig. 1 is a schematic flowchart of a
- Fig. 2 is a schematic plan view of a
- FIG. 3 is a schematic plan view of a sample holder
- FIG. 4 in a schematic side view of a
- Fig. 7 is a magnified longitudinal section with the microscope
- Fig. 1 shows in a schematic flow diagram the
- the aluminum alloy is transferred to the casting or smelting furnace, in which then according to
- Process step 2 is a targeted melt treatment, in particular for the purification of the aluminum alloy melt he follows. As a melt treatment 2 in the casting or melting furnace gas flushing be performed. Subsequently, the
- Aluminum alloy melt additionally escapes the gases introduced into the aluminum melt by the gas purging, so that further purification takes place.
- the melt treatment 2 in the casting or smelting furnace is usually carried out with addition of chlorine, since chlorine has the property of effectively reducing the sodium, lithium and calcium components of the aluminum alloy melt by forming the corresponding salts which have been introduced into the melt via impurities, even the lowest concentrations from the aluminum alloy melt to remove.
- Aluminum alloy melt can thus be reduced to a few ppm.
- Roll bar 4a or to a casting belt 4b via a degasser which is usually arranged in the gutter system required for casting.
- Aluminum alloy melt in the degasser which is often designed as Mehrcrotorentgaser and a
- Chlorine gas used.
- Print plate carrier for example, is used as a thermal printing plate.
- Table 1 shows the pattern alloys Nos. 1 to 9 and their composition. Table 1
- Process steps 1, 2 and 3 are characterized from FIG. 1 prepared.
- the amount of chlorine in the gas purge in the furnace was reduced to 20 mg Cl / kg Al and the amount of chlorine, which is fed in the degasser of the molten aluminum, adjusted to the value 6.6 mg Cl / kg AI.
- the method V5 differs from the methods V0 to V4 by the addition of salts in the melting and alloying of the aluminum alloy in step 1 of FIG. 1 in the amount of 60 mg Cl / kg Al In the subsequent steps of oven rinse and degassing, no chlorine was added in process V5.
- Table 2 shows the assignment of the aluminum alloy strips Ml to Ml 6 to the production methods VO to V5. From the bands Ml to M16 samples were cut out longitudinally to the rolling direction and longitudinal sections for
- Fig. 2 shows how strip 7 from a
- Aluminum alloy strip 6 may be provided to make longitudinal cuts of the aluminum alloy strip. As can be seen, a plurality of strips 7 are directly separated from an aluminum alloy strip and then placed in a sample holder 8. As shown in Fig. 3 in a plan view of a sample holder 8 with potted longitudinal strips 7, point of the
- Fig. 4 The apparatus for polishing the longitudinal strips is shown in Fig. 4 in a sectional view only schematically.
- the rotating grinding wheel 11 is covered with an abrasive paper with increasing grain size.
- a 120 grit SIC paper is used until the samples are in the
- Sample holder 8 have a flat surface.
- Lubricant serves water at each grinding step.
- the grain size of the grinding wheels is then successively increased from 500 to 1000 and later to an abrasive cloth with approx. 2400, the grinding time being approx. 10 - 20 sec. was and in turn used as a lubricant water.
- the lubricants used in this step were alcohol-based and oil-based agents, for example "lubricious blue” and "lubricious red”.
- the samples were cleaned under running water with a rinsing agent and then with Ethanol dried under hot air.
- the final polishing was carried out with a synthetic fiber cloth in conjunction with an oxide polishing suspension 0.25 ⁇ and the lubricant water for a time of 2 - 5 minutes.
- Pressure plate carrier correlated.
- Comparative samples Nos. 1, 2, 3 and 4 showed medium to large etching figures with cubic etching attack.
- the number of medium and large etching figures with cubic etching attack ranged between 1089 and 298.
- Fig. 5 shows a greatly enlarged
- the cubic etching attack is typical of the presence of chlorine atoms or chlorine clusters, which in combination with water react to form hydrochloric acid and typical etching in the
- Figure 6 shows a cubic etch attack etch figure which has a medium size and also results in an unacceptable defect on the water-based coatings coated printing plate supports. The longitudinal extent of this
- ⁇ tzfigur was 22 ⁇ .
- an inventive embodiment which is shown in Fig. 7, extremely small ⁇ tzfiguren with cubic etching attack with a size of less than 5 ⁇ .
- the pattern M7 was in the
- Lubricant prepared longitudinal grinding. This reduction in the size of the etching figures with cubic etching attack in
- Aluminum alloy tapes are therefore excellently suited for the production of printing plate supports with water-based coatings, since these prevent the occurrence of
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013555883A JP5588075B2 (ja) | 2011-03-02 | 2012-03-02 | 水性コーティングを含むリソグラフ印刷プレート支持体用アルミニウムストリップ |
KR1020137026160A KR101541438B1 (ko) | 2011-03-02 | 2012-03-02 | 수성 피막을 구비한 평판 인쇄판 캐리어용 알루미늄 스트립 |
CN201280009236.0A CN103380007B (zh) | 2011-03-02 | 2012-03-02 | 用于具有水基涂层的平版印版载体的铝条 |
BR112013020021-9A BR112013020021B1 (pt) | 2011-03-02 | 2012-03-02 | tira de liga de alumínio para a produção de suportes de chapas de impressão e método de produção de tiras de alumínio |
US14/013,927 US8857332B2 (en) | 2011-03-02 | 2013-08-29 | Aluminium strip for lithographic printing plate carriers comprising water-based coatings |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20110156689 EP2495106B1 (de) | 2011-03-02 | 2011-03-02 | Aluminiumband für lithografische Druckplattenträger mit Wasser basierenden Beschichtungen |
EP11156689.9 | 2011-03-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/013,927 Continuation US8857332B2 (en) | 2011-03-02 | 2013-08-29 | Aluminium strip for lithographic printing plate carriers comprising water-based coatings |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012117084A1 true WO2012117084A1 (de) | 2012-09-07 |
Family
ID=44146854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/053591 WO2012117084A1 (de) | 2011-03-02 | 2012-03-02 | Aluminiumband für lithografische druckplattenträger mit wasser basierenden beschichtungen |
Country Status (8)
Country | Link |
---|---|
US (1) | US8857332B2 (de) |
EP (1) | EP2495106B1 (de) |
JP (1) | JP5588075B2 (de) |
KR (1) | KR101541438B1 (de) |
CN (1) | CN103380007B (de) |
BR (1) | BR112013020021B1 (de) |
ES (1) | ES2544707T3 (de) |
WO (1) | WO2012117084A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2017012808A (es) | 2015-04-06 | 2018-01-30 | Novelis Inc | Composiciones de revestimiento a base de agua y productos y procesos relacionados. |
US10755738B2 (en) * | 2015-05-28 | 2020-08-25 | Uacj Corporation | Aluminum alloy substrate for magnetic discs and manufacturing method therefor, as well as magnetic disc using said aluminum alloy substrate for magnetic discs |
BR112018070957B1 (pt) * | 2016-04-20 | 2022-08-30 | Hydro Aluminium Rolled Products Gmbh | Método para produção de uma faixa de alumínio para suportes de placa de impressão litográfica de uma liga de alumínio |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19823790A1 (de) * | 1998-05-28 | 1999-12-02 | Vaw Ver Aluminium Werke Ag | Lithoband, Druckplattenträger und Verfahren zur Herstellung eines Lithobandes, eines Druckplattenträgers oder einer Offset-Druckplatte |
DE19902527A1 (de) * | 1999-01-22 | 2000-07-27 | Vaw Ver Aluminium Werke Ag | Druckplattenträger und Verfahren zur Herstellung eines Druckplattenträgers oder einer Offsetdruckplatte |
US20040108021A1 (en) * | 1999-05-27 | 2004-06-10 | Evans Paul Vincent | Aluminum alloy sheet |
EP2100677A1 (de) * | 2008-03-06 | 2009-09-16 | Fujifilm Corporation | Verfahren zur Herstellung einer Aluminiumlegierungsplatte für eine lithografische Druckplatte, dadurch erhaltene Aluminiumlegierungsplatte für eine lithografische Druckplatte und lithografische Druckplattenunterstützung |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62230946A (ja) | 1986-04-01 | 1987-10-09 | Furukawa Alum Co Ltd | 平版印刷版用アルミニウム合金支持体 |
US4818300A (en) * | 1986-12-08 | 1989-04-04 | Aluminum Company Of America | Method for making lithoplate |
DE29924474U1 (de) | 1999-07-02 | 2003-08-28 | Hydro Aluminium Deutschland GmbH, 53117 Bonn | Lithoband |
EP1136280B1 (de) * | 2000-03-09 | 2007-05-02 | FUJIFILM Corporation | Flachdruckplattenträger und sein Herstellungsverfahren |
JP4056682B2 (ja) * | 2000-07-11 | 2008-03-05 | 富士フイルム株式会社 | 平版印刷版用支持体 |
ATE404383T1 (de) * | 2000-09-14 | 2008-08-15 | Fujifilm Corp | Aluminiumträger für flachdruchplatte, verfahren zu seiner herstellung und originalflachdruckplatte |
CN1218840C (zh) * | 2001-01-22 | 2005-09-14 | 富士胶片株式会社 | 平版印刷版用支撑体、其制造方法以及平版印刷版原版 |
US6808864B2 (en) | 2001-09-12 | 2004-10-26 | Fuji Photo Film Co., Ltd. | Support for lithographic printing plate and presensitized plate |
JP2004292862A (ja) | 2003-03-26 | 2004-10-21 | Furukawa Sky Kk | 平版印刷版用アルミニウム合金支持体およびその製造方法 |
JP4913816B2 (ja) | 2005-10-19 | 2012-04-11 | ハイドロ アルミニウム ドイチュラント ゲー エム ベー ハー | 石版印刷版支持体用のアルミニウムストリップ |
US20080035488A1 (en) | 2006-03-31 | 2008-02-14 | Martin Juan Francisco D R | Manufacturing process to produce litho sheet |
ES2407655T5 (es) * | 2007-11-30 | 2023-02-23 | Speira Gmbh | Banda de aluminio para soportes para planchas de impresión litográfica y su producción |
JP5265955B2 (ja) * | 2008-04-18 | 2013-08-14 | 富士フイルム株式会社 | 平版印刷版用アルミニウム合金板、平版印刷版用支持体、平版印刷版用原版および平版印刷版用アルミニウム合金板の製造方法 |
-
2011
- 2011-03-02 ES ES11156689.9T patent/ES2544707T3/es active Active
- 2011-03-02 EP EP20110156689 patent/EP2495106B1/de active Active
-
2012
- 2012-03-02 JP JP2013555883A patent/JP5588075B2/ja active Active
- 2012-03-02 WO PCT/EP2012/053591 patent/WO2012117084A1/de active Application Filing
- 2012-03-02 CN CN201280009236.0A patent/CN103380007B/zh active Active
- 2012-03-02 KR KR1020137026160A patent/KR101541438B1/ko active IP Right Grant
- 2012-03-02 BR BR112013020021-9A patent/BR112013020021B1/pt active IP Right Grant
-
2013
- 2013-08-29 US US14/013,927 patent/US8857332B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19823790A1 (de) * | 1998-05-28 | 1999-12-02 | Vaw Ver Aluminium Werke Ag | Lithoband, Druckplattenträger und Verfahren zur Herstellung eines Lithobandes, eines Druckplattenträgers oder einer Offset-Druckplatte |
DE19902527A1 (de) * | 1999-01-22 | 2000-07-27 | Vaw Ver Aluminium Werke Ag | Druckplattenträger und Verfahren zur Herstellung eines Druckplattenträgers oder einer Offsetdruckplatte |
US20040108021A1 (en) * | 1999-05-27 | 2004-06-10 | Evans Paul Vincent | Aluminum alloy sheet |
EP2100677A1 (de) * | 2008-03-06 | 2009-09-16 | Fujifilm Corporation | Verfahren zur Herstellung einer Aluminiumlegierungsplatte für eine lithografische Druckplatte, dadurch erhaltene Aluminiumlegierungsplatte für eine lithografische Druckplatte und lithografische Druckplattenunterstützung |
Also Published As
Publication number | Publication date |
---|---|
KR20130143710A (ko) | 2013-12-31 |
CN103380007B (zh) | 2016-05-18 |
EP2495106A1 (de) | 2012-09-05 |
KR101541438B1 (ko) | 2015-08-03 |
CN103380007A (zh) | 2013-10-30 |
BR112013020021B1 (pt) | 2021-05-18 |
JP5588075B2 (ja) | 2014-09-10 |
ES2544707T3 (es) | 2015-09-03 |
JP2014514178A (ja) | 2014-06-19 |
US20140000469A1 (en) | 2014-01-02 |
EP2495106B1 (de) | 2015-05-13 |
BR112013020021A2 (pt) | 2017-06-13 |
US8857332B2 (en) | 2014-10-14 |
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