EP1853433B1 - Datenträger mit halbtonbild - Google Patents

Datenträger mit halbtonbild Download PDF

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Publication number
EP1853433B1
EP1853433B1 EP06706763A EP06706763A EP1853433B1 EP 1853433 B1 EP1853433 B1 EP 1853433B1 EP 06706763 A EP06706763 A EP 06706763A EP 06706763 A EP06706763 A EP 06706763A EP 1853433 B1 EP1853433 B1 EP 1853433B1
Authority
EP
European Patent Office
Prior art keywords
printing plate
printing
areas
white areas
tonal values
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.)
Revoked
Application number
EP06706763A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1853433A2 (de
Inventor
Roger Adamczyk
Christof Baldus
Klaus Meindl
Peter Franz
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.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient 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=36581645&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1853433(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP1853433A2 publication Critical patent/EP1853433A2/de
Application granted granted Critical
Publication of EP1853433B1 publication Critical patent/EP1853433B1/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/445—Marking by removal of material using chemical means, e.g. etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam
    • B42D2035/26—

Definitions

  • the invention relates to a data carrier with a halftone image produced in intaglio printing, which has printed sub-areas with specific tonal values, wherein at least three printed subareas have different tonal values.
  • the invention further relates to a gravure printing plate and a gravure printing method for printing halftone images having three or more different tonal values, and to a method for producing such intaglio printing plate.
  • Data carriers in the sense of the present invention are in particular security or valuable documents, such as banknotes, passports, identity documents, check forms, shares, certificates, stamps, vouchers, air tickets and the like, as well as labels, seals, packaging and other elements for product assurance.
  • security or valuable documents such as banknotes, passports, identity documents, check forms, shares, certificates, stamps, vouchers, air tickets and the like, as well as labels, seals, packaging and other elements for product assurance.
  • data carrier in the following includes all such documents and product securing means.
  • Security and value documents the commercial value or value of which far exceeds the material value, are usually identified by suitable measures as genuine and distinguishable from counterfeits and counterfeits. They are usually provided with special security elements that are ideally not or only with great effort imitable and not falsified.
  • the line or intaglio printing technique has for the printing of data carriers, in particular of securities, such as banknotes and the like, a great importance.
  • the intaglio printing is characterized by the fact that linear depressions are introduced into the printing plates in order to produce a printed image.
  • the ink-transferring areas of the printing plate are thus present as depressions in the printing plate surface.
  • These depressions are produced by means of a suitable engraving tool or by etching.
  • a wider line is produced with increasing stitch depth due to the usually tapered engraving tools.
  • the ink receptivity of the engraved line, and hence the opacity of the printed line increases with increasing stitch depth.
  • the non-printing areas of the printing plate are covered with a chemically inert lacquer.
  • the engraving is produced in the exposed plate surface, the depth of the engraving lines depending in particular on the etching time.
  • Line intaglio printing technology allows a relatively thick application of ink on a data carrier in comparison to other common printing techniques, such as offset printing.
  • the comparatively thick ink layer produced by line intaglio printing together with the partial deformation of the paper surface, which comes about when the paper is pressed into the engraving of the printing plate, can easily be felt manually even by the layman and can therefore easily be recognized as an authenticity feature by virtue of its tactility.
  • the tactility is not imitated with a copier, so that the LiVSichianadrucktechnik provides high-quality protection against counterfeiting.
  • the present invention relates not only to black and white halftone images containing the achromatic colors, namely, white, black and gray, but also to monochrome or multicolor halftone images comprising the so-called bright colors.
  • tone value is understood to mean the brightness of the color under consideration.
  • a template such as a portrait, divided into halftone-related sub-areas and assigned to the individual tone values or groups of tone values, matched to the printing ink used, different engraving depths for the printing plate to be produced.
  • the tonal values of the original are converted into corresponding engraving depths on the printing plate, whereby the engraving depth necessary for the generation of a special tonal value can vary from printing ink to printing ink.
  • the object of the invention is to create a data carrier with increased security against counterfeiting, which has a half-tone image produced by intaglio printing with a large number of available halftone values.
  • one or more of the different tonal values are formed by printed partial areas appearing over the entire surface of the naked eye with a certain proportion of unprinted white areas.
  • white areas By using such white areas, the number of available halftone values can be significantly increased and at the same time a targeted halftone control can be achieved.
  • the use of three different engraving depths by the use of different sized white parts easily eight different tonal values can be realized, which already allow an extremely realistic representation of halftone images, such as portraits.
  • the use of the white areas according to the invention leads to a stabilization of the hue of the printed partial areas, which is particularly advantageous when using poorly translucent printing inks.
  • the unprinted white areas of at least one of the different tonal values are formed by a family of parallel white lines.
  • the unprinted white areas of at least one of the different tonal values are formed by a regular cross grid.
  • the white areas result, for example, from the diamond-shaped intermediate spaces remaining between two intersecting groups of parallel printing lines.
  • the unprinted white areas of at least one of the different tone values form hidden information, such as a pattern or a string.
  • hidden information such as a pattern or a string.
  • At least one of the printed sub-areas of the halftone image is tactually perceptible or contains a tactile perceptible structural element and thereby provides effective protection against counterfeiting, e.g. by copying.
  • the extent of the unprinted white areas is less than 100 ⁇ m, preferably less than 80 ⁇ m, more preferably less than 60 ⁇ m, even more preferably less than 40 ⁇ m and especially preferably less than 20 ⁇ m, in at least one dimension.
  • the white areas for example, lines with a width less than 100 microns (or less than 80 microns or 60 microns or 40 microns or 20 microns) or by surface areas of any shape with an areal extent of less than 100 microns x 100 microns (or less than 80 microns x 80 microns or 60 microns x 60 microns or 40 microns x 40 microns or 20 microns x 20 microns) may be formed.
  • At least six, for example eight, printed partial areas have different tonal values which are each formed by printed partial areas which appear to be full-surface to the naked eye and have a certain proportion of unprinted white areas.
  • the sub-areas of the halftone image can be derived from a grid superimposed on a halftone image original, as in the international application WO 03/052702 described.
  • the halftone image, as in the WO 03/052702 described have additional tactile structural elements, or be superimposed at least in some areas with fine structures that affect its visual appearance and have a different orientation in individual sub-areas.
  • the WO 03/052702 also describes various possibilities for converting a halftone original into a intaglio image, which can likewise be used in the present invention. With regard to the mentioned objects, the disclosure of WO 03/052702 incorporated by reference into the present application.
  • the invention further includes a gravure printing plate for printing a halftone image having at least three differently engraved areas in the printing plate surface which serve to print different tonal values.
  • a gravure printing plate for printing a halftone image having at least three differently engraved areas in the printing plate surface which serve to print different tonal values.
  • One or more of the at least three engraved areas in this case have a certain proportion of non-printing white areas which are formed by surfaces lying at the level of the printing plate surface and whose extent lies at least in one dimension below the resolution limit of the naked eye.
  • the non-printing white areas of at least one of the engraved areas of such a printing plate can result from a family of parallel engraving lines whose spacing is greater than the line width of the engraving lines. At a distance is not the non-printing space between the engraving lines, but the distance, for example, from the left flank of an engraving line to the left flank of the next engraving line.
  • the non-printing white areas of at least one of the engraved areas can also result from two sets of parallel engraving lines crossing each other at an angle.
  • the spacing of the engraving lines within each family is greater here than the line width of the engraving lines, resulting in diamond-shaped white areas.
  • the two crowds intersect advantageously at an angle which is between 40 ° and 80 °, preferably between 50 ° and 70 °, for example at about 60 °.
  • the engraving lines of the intaglio printing plate or the printed lines preferably have a width of less than 60 ⁇ m, particularly preferably less than 50 ⁇ m, particularly preferably less than 30 ⁇ m.
  • the non-printing white areas of at least one of the engraved areas form hidden information, such as a pattern or a string, in order to further increase the security of the generated halftone images.
  • the hidden information can be present as positive or negative information and can also be provided only in a partial area of the halftone image.
  • the areas of the white areas lying at the level of the printing plate surface continue with a flank angle ⁇ into the depth of the printing plate, which lies between 15 ° and 60 °, preferably between 30 ° and 50 °, in each case based on the surface normal of the printing plate.
  • a flank angle ⁇ into the depth of the printing plate, which lies between 15 ° and 60 °, preferably between 30 ° and 50 °, in each case based on the surface normal of the printing plate.
  • At least one of the engraved areas advantageously has a base area with a basic roughness pattern, as is the case, for example, in the publication WO 97/48555 described method can be generated.
  • the lying at the level of the printing plate surface areas of the white areas are advantageously designed so that they extend with a flank angle ⁇ in the depth of the printing plate, which is between 15 ° and 60 °, preferably between 30 ° and 50 °, based on the surface normal Pressure plate, lies.
  • a flank angle ⁇ in the depth of the printing plate, which is between 15 ° and 60 °, preferably between 30 ° and 50 °, based on the surface normal Pressure plate, lies.
  • an engraving tool with a corresponding flank angle ⁇ is expediently used.
  • the intaglio printing plates according to the invention by engraving with a stylus, more preferably with a rapidly rotating, conically tapered stylus, as in the document WO 97/48555 described, prepared.
  • a stylus more preferably with a rapidly rotating, conically tapered stylus, as in the document WO 97/48555 described, prepared.
  • the engravings are also by laser engraving or Etching or any other suitable removal method can be generated.
  • intaglio printing technology in particular the steel intaglio technique for the halftone images according to the invention, achieves a characteristic printing and embossing image, which is easily recognizable even to laymen, and which can not be readjusted with other common printing processes.
  • the intaglio printing technique and the innovation disclosed here are therefore particularly suitable for the printing of valuable or security-relevant data carriers, such as security or value documents, which have to meet high demands with regard to the protection against counterfeiting.
  • Fig.1 shows a banknote 10, which is provided with a semi-tone image 12 produced by intaglio printing, which is shown schematically in the figure as a black and white portrait.
  • the entire printed image of the banknote consists of a superposition of a plurality of printed images, which are produced with different printing methods.
  • a further graphic motif 14 can also be designed as a intaglio half tone image according to the invention. In the latter case, the portrait 12 can also be produced with conventional intaglio printing.
  • the banknote 10 may contain a pattern 16 produced in offset printing, for example a guilloche pattern of regularly interlaced lines or another finely structured pattern, and a serial number 18 printed by letterpress. Areas created by screen printing or by further printing methods may also be provided.
  • Fig. 2 shows for illustration a section of the banknote 10 in the area of the intaglio half-tone image 12 in cross-section.
  • the detail shown shows the banknote paper 20 deformed during the printing process by the contact pressure, which has recesses 22 on the banknotes back and elevations 24 on the front of the banknotes.
  • the elevations 24 are each covered with color layers 36 and 38, respectively, which are separated from the engraved areas 46 and 48 (FIG. Fig. 3 ) of the printing plate 40 were recorded.
  • the first printed sub-area 26 is covered with a color layer 36 of a certain color layer thickness D and appears within the halftone image 12 in a first tone value, which is determined by the nature of the ink used and the banknote paper.
  • the second printed partial surface 28 is covered with a color layer 38 which has the same thickness D as the color layer 36 of the first partial surface 26.
  • the printed image of the second partial area 28 is formed with a certain proportion of unprinted white areas W.
  • the extent of the white areas W is at least in one dimension below the resolution limit of the naked eye, so that they can not be resolved without aids.
  • the second printed partial surface 28 therefore appears to the naked eye as a uniform, fully printed area. However, due to the presence of white, it appears within the halftone image 12 despite the same color layer thickness D in a second tone, which is lighter than the first tone of the sub-area 26.
  • a plurality of different tonal values can be set via the white component, each of which ranges in brightness to the brightness of the continuous ink layer 36 of the first partial surface 26.
  • a combination of different color layer thicknesses D and different white parts so a variety of tone values between "white” and “black” (or the completely covering expression of the printing ink used). It is understood that in a halftone image, there does not necessarily have to be a tone represented by a full-color layer 36. Rather, it may be advantageous to represent all occurring tonal values by partial areas with a certain amount of white.
  • Fig. 3 shows the representation of the Fig. 2 corresponding cutout of the profile of the associated intaglio printing plate 40.
  • a first engraving area 46 and a second engraving area 48 are each engraved with the same engraving depth T. While the first engraving area 46 is formed continuously and thus leads to a continuous ink layer 36 during printing, the second engraving area 48 is provided with webs 50 extending to the printing plate surface 42 whose surfaces 52 lying at the level of the printing plate surface form non-printing white areas.
  • the webs 50 continue from the lying on the surface 42 of the pressure plate surfaces 52 with a flank angle ⁇ in the depth of the pressure plate, which is essentially given by the engraving tool used.
  • the engraving areas of the intaglio printing plate 40 are engraved with a rotating stylus whose flank angle corresponds to the flank angle of the webs 50 to be generated.
  • Fig. 4 shows in (a) to (e) some exemplary embodiments. In each case, a plan view is shown of a uniformly printed partial surface of a Data carrier, as it shows when viewed with a magnifying glass or a microscope.
  • Fig. 4 (a) shows a first cutout 60, in which the associated intaglio printing plate contains a family of parallel engraving lines whose distance is greater than the line width of the engraving lines.
  • the associated intaglio printing plate contains a family of parallel engraving lines whose distance is greater than the line width of the engraving lines.
  • approximately 30 .mu.m wide engraving lines were produced with a spacing of 60 .mu.m.
  • cross gratings as they result from two sets of parallel engraving lines crossing at a certain angle ⁇ , also leads to very good results.
  • the intersecting lines of lines 72 in the printed image produce small, diamond-shaped white areas 74.
  • small, up to the printing plate surface reaching truncated pyramids are left by the intersecting engraving lines whose non-printing top surfaces in intaglio printing just the diamond-shaped white areas shown 74 result.
  • the engraving lines of the printing plate do not necessarily have to be rectilinear, as in the in Fig. 4 (c) illustrated section 80 showing two intersecting, curved line shares 82 and white areas enclosed 84 thereof.
  • the white areas may also represent hidden information, such as a pattern or a string, which is recognizable only when magnified accordingly.
  • the cutouts 90 and 94 of FIGS. 4 (d) and (e) simple variants of such designs in which the white areas in the form of the letter "D" have positive information (reference symbol 92, FIG. Fig. 4 (d) ) or negative information (reference numeral 96, Fig. 4 (e) ).
  • Different tonal values can also be set here by the line width of the engraving lines and / or the spacing of the individual information elements (in this case the letter "D"). Of course, even more complex information can be introduced in this way in the printed image.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Finance (AREA)
  • Accounting & Taxation (AREA)
  • Business, Economics & Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Holo Graphy (AREA)
EP06706763A 2005-02-21 2006-02-09 Datenträger mit halbtonbild Revoked EP1853433B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005008135A DE102005008135A1 (de) 2005-02-21 2005-02-21 Datenträger mit Halbtonbild
PCT/EP2006/001123 WO2006087129A2 (de) 2005-02-21 2006-02-09 Datenträger mit halbtonbild

Publications (2)

Publication Number Publication Date
EP1853433A2 EP1853433A2 (de) 2007-11-14
EP1853433B1 true EP1853433B1 (de) 2008-08-06

Family

ID=36581645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706763A Revoked EP1853433B1 (de) 2005-02-21 2006-02-09 Datenträger mit halbtonbild

Country Status (9)

Country Link
EP (1) EP1853433B1 (zh)
CN (1) CN100579796C (zh)
AT (1) ATE403554T1 (zh)
CA (1) CA2594780C (zh)
DE (2) DE102005008135A1 (zh)
ES (1) ES2312113T3 (zh)
MY (1) MY146523A (zh)
RU (1) RU2392125C2 (zh)
WO (1) WO2006087129A2 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010026949A1 (de) * 2010-07-12 2012-01-12 Bundesdruckerei Gmbh Verfahren zum Herstellen eines Sicherheitsdokuments mit erhabenen individualisierten Tastmarkierungen und Sicherheitsdokument
EP3446885A1 (de) * 2017-08-24 2019-02-27 Constantia Hueck Folien GmbH & Co. KG Sicherheitselement für verpackungen und verfahren zur erzeugung eines sicherheitselements mit hoher randkantenschärfe bei im tiefdruck erzeugten druckelementen
DE102018115146A1 (de) * 2018-06-24 2019-12-24 Industry365 Ug (Haftungsbeschränkt) Verfahren zur Herstellung für das menschliche Auge nicht sichtbarer und nicht kopierbarer Sicherheitselemente in einer Abbildung sowie Verfahren zum Authentizitätsnachweis von Produkten auf Basis des Abgleichs von ungleichen Informationen sowie gedruckte Abbildung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19624131A1 (de) 1996-06-17 1997-12-18 Giesecke & Devrient Gmbh Verfahren zur Herstellung von Prägeplatten
DE19845440A1 (de) * 1998-10-02 2000-04-06 Giesecke & Devrient Gmbh Stichtiefdruckverfahren zum vollflächigen Bedrucken großer Flächen
DE10015097A1 (de) * 2000-03-28 2001-10-04 Giesecke & Devrient Gmbh Im Stichtiefdruck bedruckter Datenträger
DE10044403A1 (de) * 2000-09-08 2002-03-21 Giesecke & Devrient Gmbh Datenträger mit Stichtiefdruckbild und Verfahren zur Umsetzung von Bildmotiven in Linienstrukturen sowie in eine Stichtiefdruckplatte
DE10162050A1 (de) 2001-12-17 2003-07-03 Giesecke & Devrient Gmbh Wertdokument

Also Published As

Publication number Publication date
CA2594780C (en) 2014-09-30
ES2312113T3 (es) 2009-02-16
WO2006087129A3 (de) 2006-11-02
WO2006087129A2 (de) 2006-08-24
CA2594780A1 (en) 2006-08-24
CN100579796C (zh) 2010-01-13
EP1853433A2 (de) 2007-11-14
CN101115626A (zh) 2008-01-30
MY146523A (en) 2012-08-15
DE502006001280D1 (de) 2008-09-18
RU2392125C2 (ru) 2010-06-20
DE102005008135A1 (de) 2006-08-31
ATE403554T1 (de) 2008-08-15
RU2007134309A (ru) 2009-03-27

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