WO2021191425A1 - Lithoband mit flacher topographie und daraus hergestellte druckplatte - Google Patents
Lithoband mit flacher topographie und daraus hergestellte druckplatte Download PDFInfo
- Publication number
- WO2021191425A1 WO2021191425A1 PCT/EP2021/057948 EP2021057948W WO2021191425A1 WO 2021191425 A1 WO2021191425 A1 WO 2021191425A1 EP 2021057948 W EP2021057948 W EP 2021057948W WO 2021191425 A1 WO2021191425 A1 WO 2021191425A1
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- WIPO (PCT)
- Prior art keywords
- weight
- aluminum alloy
- printing plate
- maximum
- alloy strip
- Prior art date
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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
-
- 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 alloy ribbon for lithographic printing plate supports which has a rolled-in surface topography on at least one surface of the belt, a method for producing the aluminum alloy ribbon and a printing plate for lithographic printing having a printing plate support made from an aluminum alloy.
- litho tapes i.e. aluminum alloy tapes for lithographic printing plate carriers.
- Litho ribbons are usually subjected to an electrochemical roughening step, which should result in surface roughening and a homogeneous appearance.
- the roughened structure is important for the imaging layer of the printing plate carrier made from the litho ribbons. In order to be able to produce evenly roughened surfaces, a particularly flat surface of the litho strips is therefore necessary.
- the topography of the litho strip surface is essentially an imprint of the roller topography of the last cold rolling pass.
- Elevations and depressions in the roller surface lead to grooves or ridges in the litho tape surface, which can be partially retained in the further production steps for the production of the printing plate carriers.
- the quality of the litho tape surface and thus the printing plate carrier is determined by the quality of the roller surface and thus on the one hand by the grinding practice in the surface treatment of the rollers and on the other hand by the ongoing wear and tear of the rollers.
- the strip surface be processed by a pickling process with a specific pickling removal and then have a topography whose maximum peak height Rp and / or Sp is a maximum of 1.4 ⁇ m, preferably a maximum of 1.2 ⁇ m, in particular a maximum 1.0 pm.
- the litho strips are pickled after rolling in order to remove disruptive oxide islands on the surface of the strips and thereby to improve the subsequent electrochemical roughening.
- EP 0 778 158 A1 discloses printing plate supports with a roughened and anodized surface, which have a maximum peak height Rp of up to 4 ⁇ m.
- the thickness of the imaging coating is continuously reduced in order to reduce development times and save costs in production.
- softer imaging coatings are also used, which are also intended to save costs in the production of the printing plate carriers, but which decrease in thickness during the printing operation.
- the previously produced aluminum alloy strips for lithographic printing plate carriers are not optimally adapted to these additional challenges. It was also found that chemical pickling could not solve this problem.
- the ones from the Printing plate carriers produced by known aluminum alloy tapes therefore tend to have shorter downtimes in the printing process with the new types of printing plate carriers.
- the aluminum alloy strip is usually electrochemically roughened for the production of the printing plate carrier.
- a reduction in the charge carrier input necessary for uniform roughening of the surface of the printing plate carrier facing the imaging coating would also be desirable.
- the height of the largest profile peak of the roughness profile Rp (short: peak height), the depth of the largest profile valley Rv (short: trough depth) and the number of peaks RPc are important for determining the surface quality of the litho ribbon and the electrochemically roughened printing plate carrier DIN EN ISO 4287 and DIN EN 10049 as well as the contact area Smr (c) and the aspect ratio of the surface texture Str are defined in DIN EN ISO 25178.
- the surface parameters Ra, Rp, Rv, RPc, Smr (c) and Str mentioned here relate to optically extensive measurements with a measuring area of at least 4.5 mm x 4.5 mm, carried out with a confocal microscope (lateral measuring point spacing 1.6 ⁇ m or smaller) are measured and determined with analysis software. For this purpose, optical surface measurements of the parameters were carried out on three measuring surfaces of the size mentioned and the arithmetic mean of the respective parameters was determined.
- the profile parameters Ra, Rp, Rv and RPc are calculated per measuring surface perpendicular to the rolling direction as arithmetic mean values from the available profile sections of the area measurement.
- the measurement data is processed by means of shape compensation with a second order polynomial (F filter).
- the proportion of the surface oriented in the rolling direction is of particular importance, in particular grooves and ridges oriented in this direction, which are produced by rolling and are usually not removed by electrochemical roughening.
- the isotropy of the roughening of the printing plate carrier can be indicated by the aspect ratio of the surface texture Str according to DIN EN ISO 25178.
- the Str value the number of measuring points on the measuring surface is scaled to a power of 2.
- the scaled numerical values are calculated with a resampling operation.
- the mean number of peaks RPc measured perpendicular to the rolling direction, typically indicates the number of protruding areas on the aluminum alloy strip that are present as rolling webs
- the arithmetic mean roughness value Ra and the mean peak height Rp provide information about the height of these elevations in the topography of the aluminum alloy strip or the printing plate carrier.
- the ratio of mean peak height Rp and mean trough depth Rv provides information on whether the surface topography is more dominated by troughs (values ⁇ 1) or peaks (values> 1). The ratio Rp / Rv is almost independent of the charge carrier input during electrochemical roughening.
- the object of the present invention is therefore to propose an aluminum alloy tape for lithographic printing plate carriers which, despite the decreasing thickness of the imaging coating, provides a long service life in the printing process and can be roughened with less charge carrier entry. Furthermore, the invention is intended to provide a method for producing the aluminum alloy strips with the desired properties and to provide printing plate supports, in particular for “development-on-press” printing plates or printing plates for waterless offset printing with a long service life.
- the reduced mean number of peaks RPc enables the increased service life, since there are significantly fewer raised areas on the strip perpendicular to the rolling direction.
- the Aluminum strips according to the invention are particularly preferably used as printing plate supports for “Development on Press” printing plates and for printing plates for waterless offset printing.
- the surface of the aluminum alloy strip also has an average peak height Rp of a maximum of 1.1 ⁇ m, preferably 0.45 ⁇ m to 1.1 ⁇ m.
- the mean peak height Rp which has also been reduced, further ensures that roll bars, if they are present, are reduced in height and contribute to improving the service life.
- An optical surface roughness measurement is carried out to examine the roll webs.
- the height data is available in the form of a matrix a of dimension NxM.
- the matrix is transformed with a discrete Fast Fourier Transformation (FFT) into the frequency space in which the surface portions that extend in the rolling direction and perpendicular to the rolling direction can be separated.
- FFT Fast Fourier Transformation
- the thickness of the aluminum alloy strip is preferably 0.10 mm to 0.5 mm, preferably 0.10 mm to 0.4 mm.
- aluminum strips with a thickness of 0.10 mm to 0.4 mm are used for lithographic printing plate carriers.
- Special formats also use thicknesses between 0.4 mm and 0.5 mm.
- the aluminum alloy strip has the following composition:
- Mn ⁇ 0.3% by weight, preferably ⁇ 0.1% by weight, particularly preferably ⁇ 0.05% by weight, 0.05% by weight ⁇ Mg ⁇ 0.6% by weight, preferably 0.1% by weight ⁇ Mg ⁇ 0.4% by weight,
- the remainder of Al as well as impurities individually a maximum of 0.05% by weight, in total a maximum of 0.15% by weight.
- An Si content of 0.02% by weight to 0.50% by weight also influences the appearance of electrochemically roughened printing plate supports. If the Si content is less than 0.02% by weight, the electrochemical roughening process results in too many depressions that are too small in the aluminum strip. If the Si content is too high, above 0.50% by weight, the number of depressions in the roughened aluminum strip is too small and the distribution is inhomogeneous.
- An Si content of 0.02% by weight ⁇ Si ⁇ 0.25% by weight is preferably used.
- Copper has a negative effect on electrochemical roughening even at low levels.
- the Cu content is therefore ⁇ 0.05% by weight, preferably ⁇ 0.01% by weight.
- Iron contributes to the mechanical and thermal strength of the aluminum alloy strips, so that 0.2% by weight to 1% by weight iron is permissible. With further increased contents, the roughening behavior worsens during electrochemical roughening.
- a preferred Fe content is between 0.2% by weight to 0.6% by weight or 0.4% by weight to 0.6% by weight.
- the aluminum alloy therefore preferably has an Mg content of 0.05% by weight ⁇ Mg ⁇ 0.6% by weight. In the preferred range of 0.1% by weight ⁇ Mg ⁇ 0.4% by weight or 0.25 to 0.4% by weight, strips with high strengths in the as-rolled state and a reliable roughening behavior can be provided.
- Manganese increases the thermal strength of the aluminum alloy strip, but also the necessary charge carrier input for the electrochemical roughening of the printing plate carrier made from the aluminum alloy strip. Manganese is therefore limited to 0.3% by weight, preferably ⁇ 0.1% by weight, particularly preferably ⁇ 0.05% by weight.
- Cr, Zn and Ti are also limited.
- the contents are Cr ⁇ 0.01% by weight, Zn ⁇ 0.1% by weight, preferably ⁇ 0.05% by weight and Ti ⁇ 0.05% by weight.
- the aluminum alloy strip has the state as hard as rolled. This improves handling in the production of printing plate carriers. Due to the magnesium content, the aluminum alloy strips have relatively high strengths in these states, so that good processing is possible during the electrochemical roughening and during the application of the imaging layer in the strip-like state.
- hard-rolled conditions for example, the condition H18 produced by cold rolling with intermediate annealing or H19 produced by cold rolling without intermediate annealing are preferably used.
- a method for producing an aluminum alloy strip according to the invention in which a rolling ingot is cast from an aluminum alloy for lithographic printing plate supports, is optionally preheated or homogenized before hot rolling, the rolling ingot is hot rolled to form a hot strip and the hot strip then cold-rolled to the final thickness with or without intermediate annealing, a work roll being used in the last cold-rolling pass which has an average roughness Ra of less than 0.18 ⁇ m, preferably less than 0.17 ⁇ m or preferably a maximum of 0.15 ⁇ m.
- the surface topography of a litho tape is essentially determined by the surface topography of the work roll in the last cold rolling pass.
- the method according to the invention can be used to produce an aluminum alloy strip which can be further processed into printing plate supports with an improved service life in printing.
- the long service lives in printing are also achieved with “development-on-press” printing plates or with printing plates for waterless offset printing that have particularly thin imaging coatings.
- the mean roughness Ra of the work rolls is determined according to DIN EN ISO 4287, the roll surfaces according to the invention having an average roughness Ra of less than 0.18 ⁇ m, preferably less than 0.17 ⁇ m or preferably a maximum of 0.15 ⁇ m, at least parallel to the longitudinal axis of the work roll exhibit.
- the work roll in the last cold rolling pass has a roll surface with an average trough depth Rv measured parallel to the longitudinal axis of the work roll of a maximum of 1.2 ⁇ m.
- the degree of rolling in the last cold rolling pass is at least 20%, preferably at least 30%, in order to achieve a sufficient impression of the surface topography of the roll surface in the last cold rolling pass.
- the degree of rolling in the last cold rolling pass is a maximum of 65%, preferably a maximum of 60%.
- the surface of the printing plate carrier facing the imaging layer has a ratio of the mean tip height to the mean depression depth Rp / Rv of a maximum of 0.45, preferably a maximum of 0.4, after the electrochemical roughening of the printing plate carrier.
- the specified ratio of mean peak height to mean cavity depth defines a topography of the surface of the printing plate carrier facing the imaging coating, in which the mean peak height is less than a factor of 2 in relation to mean cavity depth.
- the topography of the printing plate carrier is thus dominated by hollows and is very flat in the direction of the imaging coating, which significantly improves the service life of thin coatings in printing, for example coatings on "development-on-press" printing plates or printing plates for waterless offset printing.
- At least the side of the printing plate carrier facing the imaging layer preferably has a mean peak height Rp of less than 1.2 ⁇ m, a maximum of 1.1 ⁇ m or preferably a maximum of 1 ⁇ m.
- the printing plate carriers can additionally be roughened homogeneously or isotropically with less charge carrier input.
- Aluminum alloy strips according to the invention showed high aspect ratios of the surface texture Str even with low charge carrier entry.
- at least the surface of the printing plate carrier facing the imaging layer has an aspect ratio of the surface texture Str according to DIN EN ISO after electrochemical roughening with a charge carrier entry of at least 500 C / dm 2 25178 of at least 50%.
- the aspect ratio Str of the surface texture is a measure of the uniformity of the surface texture. With a value of 100% or 1, the surface texture is isotropic, i.e. independent of direction.
- the printing plate carriers according to the invention therefore provide a high aspect ratio Str of the surface texture even with a low charge carrier input, so that the expense for the electrochemical roughening can be reduced.
- the printing plate can thus be manufactured at a lower cost.
- This also applies to a further embodiment of the printing plate, in which at least the surface of the printing plate carrier coated with the surface facing the imaging layer, after electrochemical roughening with a charge carrier input of 400 C / dm 2, has an aspect ratio of the surface texture Str according to DIN EN ISO 25178 of at least 20% achieved.
- a printing plate for waterless offset printing has a printing plate carrier made from an aluminum alloy strip according to the invention.
- the imaging coatings of printing plates for waterless offset printing are also particularly thin, so that the service lives of the printing plates for waterless offset printing benefit to a particular degree from the surface topography of the aluminum alloy strip.
- Printing plate supports for printing plates for waterless offset printing are not electrochemically roughened before they are coated for imaging.
- Fig. 1- 4 measuring surfaces of optically measured comparison litho strips, which were electrochemically roughened with different charge carrier entries in a false color representation of the height values
- litho strips the measuring surfaces of which are shown in Fig. 1-8, were produced from a rolling ingot made of an aluminum alloy with the following composition:
- Mn ⁇ 0.3% by weight, preferably ⁇ 0.1% by weight, particularly preferably ⁇ 0.05% by weight, 0.05% by weight ⁇ Mg ⁇ 0.6% by weight, preferred 0.1% by weight ⁇ Mg ⁇ 0.4% by weight,
- the remainder of Al as well as impurities individually a maximum of 0.05% by weight, in total a maximum of 0.15% by weight.
- Production was carried out by casting a rolling bar, homogenizing the rolling bar at 450 to 610 ° C. for at least 1 h, hot rolling the rolling bar to form a hot strip about 2 - 7 mm thick and cold rolling the hot strip with or without intermediate annealing to the final thickness.
- the mean trough depth Rv of the surface of the work rolls of the exemplary embodiments according to the invention was a maximum of 1.2 ⁇ m.
- the comparative litho strips in FIGS. 1 - 4 were cold-rolled with a work roll in the last cold rolling pass, which had an arithmetic mean roughness value Ra of 0.22 mih - 0.25 mih. At a maximum of 1.6 mhi, the mean trough depth Rv was also higher than in the case of the work rolls to be used according to the invention.
- the sheets produced in this way were roughened electrochemically in HCl as electrolytes with various charge carrier inputs from 400 C / dm 2 to 800 C / dm 2.
- the height values of the optically measured measuring surfaces are shown in false colors in FIGS. 1-8, with depressions being assigned to gray to black color tones and elevations being assigned to light gray to white gray tones.
- depressions being assigned to gray to black color tones
- elevations being assigned to light gray to white gray tones.
- a Gaussian filter with lo 250 pm was used as the ripple filter. There was no filtering of the fine roughness.
- the litho strips a, b, c, d and m were produced identically by the above-mentioned process starting with the casting of a rolling bar, homogenizing the rolling bar, hot rolling the rolling bar and cold rolling the hot strip to the final thickness with intermediate annealing (H18) and without intermediate annealing (H19) .
- the resulting thicknesses, the material conditions and the arithmetic mean roughness values Ra of the surfaces of the resulting litho tapes are given in Table 1.
- the different roller topographies that were used in the last cold rolling pass can be found in Table 7.
- the litho strips according to the invention were accordingly cold-rolled in the last cold rolling pass with a work roll with a roll surface which, according to Table 7, had an arithmetic mean roughness Ra of 0.11 ⁇ m to 0.17 ⁇ m, with the specified rolling degrees.
- the mean trough depth Rv was measured to be less than 1.2 pm.
- the degree of rolling was in the range according to the invention of at least 20%. Furthermore, with a maximum of 55%, the degree of rolling was also below 60% or also below 65%, so that as a result good surface properties were achieved with the lowest possible number of stitches.
- the arithmetic mean roughness value Ra of the roll surface of the work roll in the last cold rolling pass of the comparison strips was between 0.22 ⁇ m and 0.25 ⁇ m.
- the mean trough depth Rv, at a maximum of 1.6 ⁇ m, was also significantly higher than in the case of the work rolls used according to the invention.
- the aluminum strips a, b, c, d and m according to the invention also showed, as shown in Table 2, mean peak numbers RPc measured perpendicular to the rolling direction of significantly less than 50 cm 1 .
- the comparison strips, with a mean number of peaks RPc of more than 68 cm 1 were clearly above the results of the aluminum strips according to the invention.
- the mean peak height Rp with a maximum of 0.74 gm for the aluminum alloy strips according to the invention was also significantly below the mean peak heights Rp of the comparison strips, which had at least 0.88 gm as the mean peak height Rp, with the low mean peak height Rp being due to the lower trough depth Rv of the roll surface is returned.
- 9 shows by way of example how the contact ratio Smr (c) can be determined from a material ratio curve in the form of an Abbott curve for a value c.
- the c-value is read off on the Z-axis, which corresponds to a height value of the surface topography.
- To determine the contact ratio Smr (c), the intersection of the material ratio curve with the straight line Z c is determined and the associated material ratio is read off on the X-axis.
- the optical measurement results of a roughness measurement are subjected to a Fourier transformation and only those oriented in the rolling direction Surface portions transformed back.
- a material proportion curve, as shown in FIG. 9, was generated from the back-transformed surface data and a value for the contact proportion Smr (c + 0.25 gm) was determined.
- the printing plate supports produced from aluminum strips according to the invention showed, in comparison to the comparative examples, a significantly improved service life in printing when using “development-on-press” coatings. This is attributed to the differences in the surface topography. It is assumed that the same also applies to printing plates for waterless offset printing.
- the properties of the aluminum strips during electrochemical roughening were checked with HCl as the electrolyte, with different charge carrier inputs being used.
- the concentration of the electrolyte was 6 g HCl per liter and 1 g / L Al 3+ in the form of AICH at 25 to 30 ° C with a current density of 20 A / dm 2 and alternating current.
- the charge carrier entry causes small depressions, shown in black in the figures, which increase in number with increasing charge carrier entry.
- the electrochemical roughening also has an impact on other surface parameters of the aluminum alloy strip surface facing the imaging coating of the printing plate.
- the aluminum strips according to the invention also showed a ratio Rp / Rv of a maximum of 0.45, with most of the values being below 0.41. As expected, there was a very low dependence on the charge carrier input during electrochemical roughening.
- the comparative examples were clearly above these values. Only in comparative example f was it possible to measure a value of 0.43 at 400 C / dm 2 and 500 C / dm 2 charge carrier entry.
- the printing plate supports according to the invention produced from the test tapes a, b, c, d and m had an Rp / Rv ratio of 0.40 to 0.34 from 600 C / dm 2 and thus a significantly lower Rp / Rv ratio than at the comparison bands.
- the surface topographies of the printing plate carriers according to the invention were thus made even flatter than in the case of printing plate carriers made from the comparison tapes.
- the investigations of the aspect ratio of the surface texture Str after electrochemical roughening revealed clear differences.
- the aspect ratio Str is a measure of the isotropy of the roughened surface.
- the Str value reaches 100% with a completely isotropic surface.
- the printing plate supports a, b, c, d and m produced from test tapes according to the invention can already provide an aspect ratio of the surface texture Str of at least 20% at 400 C / dm 2 or at least 50% at 500 C / dm 2
- the comparison tapes only show at 700 C / dm 2 an aspect ratio of the surface texture Str of at least 20%.
- the aluminum strips according to the invention can be provided with isotropically roughened surfaces with less charge carrier input and can thus be processed into printing plates more economically.
- the printing plates according to the invention also provide a longer service life, even in the case of printing plates with very thin imaging coatings.
- Composition of the test strips in% by weight, remainder Al, unavoidable impurities individually a maximum of 0.05% by weight, in total a maximum of 0.15% by weight, arithmetic mean roughness Ra defined in DIN EN 10049 perpendicular to the rolling direction, condition H18 5 with intermediate annealing, condition H19 without intermediate annealing during cold rolling.
- Mean peak height Rp defined in DIN EN ISO 4287 on the roughened printing plate carrier depending on the charge carrier entry in the case of electrochemical roughening in HCl.
- Ratio Rp / Rv defined in DIN EN ISO 4287 on the roughened printing plate carrier depending on the charge carrier entry during electrochemical roughening in HCl.
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Abstract
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21713984.9A EP4127257B1 (de) | 2020-03-26 | 2021-03-26 | Lithoband mit flacher topographie und daraus hergestellte druckplatte |
KR1020227037129A KR102604655B1 (ko) | 2020-03-26 | 2021-03-26 | 평탄한 표면 형상을 갖는 리소 스트립 및 그것으로 제조된 인쇄판 |
BR112022019120A BR112022019120A2 (pt) | 2020-03-26 | 2021-03-26 | Tira litográfica com topografia plana e placa de impressão produzida a partir da mesma |
CN202180024358.6A CN115349022B (en) | 2020-03-26 | 2021-03-26 | Lithographic printing belt with flat topography and printing plate made therefrom |
JP2022557801A JP2023515242A (ja) | 2020-03-26 | 2021-03-26 | 平坦なトポグラフィーを有するリソストリップおよびそれから製作される印刷版 |
US17/944,667 US11807027B2 (en) | 2020-03-26 | 2022-09-14 | Litho strip having flat topography and printing plate produced therefrom |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP20165738 | 2020-03-26 | ||
EP20165738.4 | 2020-03-26 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US17/944,667 Continuation US11807027B2 (en) | 2020-03-26 | 2022-09-14 | Litho strip having flat topography and printing plate produced therefrom |
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WO2021191425A1 true WO2021191425A1 (de) | 2021-09-30 |
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PCT/EP2021/057948 WO2021191425A1 (de) | 2020-03-26 | 2021-03-26 | Lithoband mit flacher topographie und daraus hergestellte druckplatte |
Country Status (6)
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US (1) | US11807027B2 (de) |
EP (1) | EP4127257B1 (de) |
JP (1) | JP2023515242A (de) |
KR (1) | KR102604655B1 (de) |
BR (1) | BR112022019120A2 (de) |
WO (1) | WO2021191425A1 (de) |
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WO2006122852A1 (en) | 2005-05-19 | 2006-11-23 | Hydro Aluminium Deutschland Gmbh | Conditioning of a litho strip |
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CN102049915B (zh) | 2009-11-03 | 2014-06-18 | 富士胶片株式会社 | 平版印刷版用铝合金板 |
JP6085391B2 (ja) * | 2013-03-15 | 2017-02-22 | ノベリス・インコーポレイテッドNovelis Inc. | ダル光沢仕上げの圧延肌 |
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2021
- 2021-03-26 KR KR1020227037129A patent/KR102604655B1/ko active IP Right Grant
- 2021-03-26 JP JP2022557801A patent/JP2023515242A/ja active Pending
- 2021-03-26 BR BR112022019120A patent/BR112022019120A2/pt unknown
- 2021-03-26 WO PCT/EP2021/057948 patent/WO2021191425A1/de active Search and Examination
- 2021-03-26 EP EP21713984.9A patent/EP4127257B1/de active Active
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2022
- 2022-09-14 US US17/944,667 patent/US11807027B2/en active Active
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EP0778158A1 (de) | 1995-12-04 | 1997-06-11 | Bayer Corporation | Lithographische Druckplatten mit glatter, glänzender Oberfläche |
EP1172228A2 (de) * | 2000-07-11 | 2002-01-16 | Fuji Photo Film Co., Ltd. | Träger für eine Flachdruckplatte und vorsensibilisierte Platte |
JP2002224710A (ja) * | 2001-02-06 | 2002-08-13 | Kobe Steel Ltd | アルミニウム合金箔の製造方法 |
WO2006122852A1 (en) | 2005-05-19 | 2006-11-23 | Hydro Aluminium Deutschland Gmbh | Conditioning of a litho strip |
WO2007141300A1 (en) | 2006-06-06 | 2007-12-13 | Hydro Aluminium Deutschland Gmbh | Method for cleaning an aluminium workpiece |
EP2444254A1 (de) | 2010-10-22 | 2012-04-25 | Hydro Aluminium Rolled Products GmbH | Lithoband für die elektrochemische Aufrauung sowie Verfahren zu dessen Herstellung |
JP2015004095A (ja) * | 2013-06-20 | 2015-01-08 | 株式会社Uacj | 缶ボディ用アルミニウム合金板及びその製造方法 |
EP3254772A1 (de) * | 2015-02-03 | 2017-12-13 | Toyo Aluminium Kabushiki Kaisha | Aluminiumfolie, elektronische vorrichtung, rolle-zu-rolle-aluminiumfolie und aluminiumfolienherstellungsverfahren |
US20190076897A1 (en) * | 2016-03-16 | 2019-03-14 | Toyo Aluminium Kabushiki Kaisha | Aluminum foil for ultraviolet light reflecting materials and method for producing same |
CN110102580A (zh) * | 2019-04-12 | 2019-08-09 | 郑州明泰实业有限公司 | 一种用于加工高端化妆品瓶盖的1100-h14状态铝合金带材生产方法 |
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EP4127257A1 (de) | 2023-02-08 |
EP4127257C0 (de) | 2024-03-13 |
KR102604655B1 (ko) | 2023-11-21 |
EP4127257B1 (de) | 2024-03-13 |
BR112022019120A2 (pt) | 2022-11-08 |
JP2023515242A (ja) | 2023-04-12 |
CN115349022A (zh) | 2022-11-15 |
US11807027B2 (en) | 2023-11-07 |
US20230086926A1 (en) | 2023-03-23 |
KR20220149759A (ko) | 2022-11-08 |
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