EP3403844A1 - Procédé de fabrication d'un élément de sécurité pourvu d'une zone en relief métallisée et élément de sécurité associé - Google Patents

Procédé de fabrication d'un élément de sécurité pourvu d'une zone en relief métallisée et élément de sécurité associé Download PDF

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Publication number
EP3403844A1
EP3403844A1 EP18000456.6A EP18000456A EP3403844A1 EP 3403844 A1 EP3403844 A1 EP 3403844A1 EP 18000456 A EP18000456 A EP 18000456A EP 3403844 A1 EP3403844 A1 EP 3403844A1
Authority
EP
European Patent Office
Prior art keywords
relief
area
metallized
wash
elevations
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.)
Granted
Application number
EP18000456.6A
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German (de)
English (en)
Other versions
EP3403844B1 (fr
Inventor
Björn Teufel
Winfried HOFFMÜLLER
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 Currency Technology GmbH
Original Assignee
Giesecke and Devrient Currency Technology GmbH
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Publication date
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Publication of EP3403844A1 publication Critical patent/EP3403844A1/fr
Application granted granted Critical
Publication of EP3403844B1 publication Critical patent/EP3403844B1/fr
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Classifications

    • 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
    • B42D25/23—Identity cards
    • 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
    • B42D25/24—Passports
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • 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
    • B42D25/425—Marking by deformation, e.g. embossing
    • 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
    • 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

Definitions

  • the invention relates to a method for producing a security element with a metallized relief region.
  • the invention also relates to a security element which can be produced by means of such a method for securing valuables.
  • Data carriers such as valuables or identity documents, but also other valuables, such as branded articles, are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data medium and / or serve as protection against unauthorized reproduction.
  • the security elements can for example be embedded in a banknote in the form of metallized films or arranged over an opaque area, a window area or a continuous opening of the data carrier.
  • the metallized foils also contain demetallized subregions which serve to depict a desired motif and / or additional authenticity protection of the data carrier.
  • These metal-free areas are usually produced by means of a washing process, as described for example in the publication WO 99/13157 is described.
  • a translucent carrier film is printed using a printing ink with a high pigment content with a desired pattern. Due to the high pigment content, the ink forms a porous, sublime color after drying.
  • a thin metallic cover layer is then formed, which only partially covers the color body in the region of the paint application because of its large surface area and the porous structure. The paint application and the Overlying metallic cover layer can then be removed by washing with a suitable solvent, so that in the cover layer in the originally printed areas of the carrier film recesses are generated.
  • the object of the invention is to avoid the disadvantages of the prior art and, in particular, to provide a method for producing a security element with which filigree demetallization areas in a metallized relief area can be produced in a simple manner.
  • the invention is based on the surprising finding that the thin wash ink layer applied in step W) in the flat area and in the relief area has different effects on the subsequent demetallization in step A). While the thin washcoat layer in the narrow flat area leads to removal of the metallization, no demetallization takes place in the relief area. An explanation of this phenomenon, which corresponds to the current understanding, is presented below.
  • relief and flat structures can be produced with great accuracy and the metallization or demetallization produced by the present process adapted to these structures, metallized and non-metallized portions are aligned with high precision on each other and on the underlying relief structure.
  • the distance between the edge of the relief structure and the demetallization can be kept smaller than 10 .mu.m, in particular smaller than 3 .mu.m or even 2 .mu.m. With conventional methods, such registration accuracy is generally unattainable, especially for fine demetallization structures. Since the conventional, partial printing of wash ink takes place in an independent printing step, a positional tolerance of about 300 ⁇ m was created.
  • the relief region is often also referred to as a height-structured region, since it has elevations and depressions as structural elements. It is understood that the relief region of the carrier may have, in addition to the two subregions mentioned, further subregions which are separated from one another by narrow flat regions. The following remarks on the flat area and the partial areas of the relief area preferably apply to all flat areas and relief partial areas present on the carrier.
  • the wash-dye layer with a small layer thickness is provided on a printing form.
  • the printing plate is brought into contact with the carrier.
  • the wash ink layer is applied by the contact with the different areas, relief area and flat area, different.
  • the wash-dye layer with a small layer thickness is applied by contact with the printing forme (full area).
  • the wash ink layer of small layer thickness is only selectively transferred by the contact with the printing plate.
  • the wash ink layer is provided on the printing plate without structure (unstructured). conventional Restrictions on structure widths are therefore not relevant.
  • the washcoat layer with a low layer thickness is provided for the support in the relief area and in the flat area unstructured (and on an unstructured area of the printing form).
  • step W the washcoat layer of low layer thickness in the relief area is selectively applied only to the elevations of the relief structure, preferably to the upper 20%, in particular to the upper 10% of the elevations.
  • the washcoat layer of small layer thickness in the relief region is selectively introduced only into the depressions of the relief structure, preferably into the lower 20%, in particular into the lower 10% of the depressions.
  • the properties of the wash color can be selected specifically so that a selective application or introduction is supported.
  • a high viscosity of the wash ink promotes a selective application only to the elevations, while a low viscosity assists a selective introduction only in the depressions of the relief structure.
  • a narrow flat area having a width of less than 1000 ⁇ m is formed in step R), preferably a flat area with a width of between 10 ⁇ m and 1000 ⁇ m, particularly preferably between 10 ⁇ m and 500 ⁇ m, and very particularly preferably between 10 ⁇ m and 250 ⁇ m.
  • the elevations and depressions of the relief structure advantageously form structural elements with a height of more than 0.5 ⁇ m, preferably more than 1 ⁇ m or more than 2 ⁇ m, in particular about 4 ⁇ m.
  • the height of the structures is - in each case - preferably less than 8 microns, ie in particular between 0.5 to 8 microns, 2 to 8 microns and 3 to 5 microns.
  • the lateral extent the structural elements is preferably less than 100 microns and is for example 10 microns to 30 microns.
  • the relief structure therefore advantageously has a non-sinusoidal cross-section.
  • the relief structure is advantageously formed with pointed elevations, in particular in the form of prisms or three, four or more sided pyramids. Prism-shaped structural elements are in particular arranged so that one of its edges roof-like forms a line-shaped tip.
  • the small layer thickness of the wash ink layer is preferably below 20%, in particular in the range of 1 to 20%, preferably between 1 and 10%, of the relief structure height.
  • the relief structure is formed by an embossed structure, as can be produced by embossing the desired structures easily and with high accuracy.
  • the relief structure may in particular be a micromirror arrangement, a blazed grating with a sawtooth-type furrow profile, a Fresnel lens arrangement, or else a diffractive structure, such as a hologram, a holographic grating image or a hologram-like diffraction structure.
  • the metallized relief structure acts as a diffuse or metallic reflector, but it is also within the scope of the invention that the relief structure merely serves as a spacer for the printing plate during the printing process and does not or hardly influences the visual reflection properties of the security element.
  • suitable solvents are available in each case.
  • water can be used as a solvent.
  • the wash ink layer with a small layer thickness is applied to the relief area and the flat area in step W) as toning in a gravure printing step. Furthermore, it is advantageously provided that in the deep-pressure step, a washcoat of normal thickness is simultaneously applied in a demetallization area, that in step M) the demetallization area is also metallized, and that in step A) in the demetallization area the washcoat of normal thickness together with the overlying metallization removed and demetallinstrument the Demetallmaschines Symposium thereby.
  • a “normal layer thickness” refers to a layer thickness of the washing ink which ensures a safer demetallization in the large-area demetallization areas.
  • the "small layer thickness” is preferably at least (5 times or) 10 times smaller than the normal layer thickness.
  • the conventionally undesirable Tonung the wash color can be used selectively in the context of the invention and increased to a value at which the Demetallmaschine is promoted in the flat area, an undesirable Demetallmaschine in the relief area but not yet occurs.
  • the toning of the wash ink can be adjusted by at least one of the following parameters (or combinations thereof): the pigmentation of the wash color, the choice of binder, by the electrostatics during the printing process (switching on or off of the electrostatic pressure assist ESA), the setting of Squeegee (such as angle), type and pressure of the impression, the circumference of the impression cylinder and / or the atmosphere of the impression cylinder are affected.
  • the demetallization in the flat area does not necessarily have to be complete, since small metal remnants in the narrow flat areas between the reflective relief partial areas are hardly noticeable.
  • degrees of demetallization have proven to be above 70%, preferably above 80% and in particular above 90%.
  • the binder of the washing ink is advantageously water-soluble and the washing ink used advantageously has a particularly high color transfer.
  • the gravure cylinder is expediently provided with a certain roughness in its flat areas, in particular in order to optimize the running of the doctor blade.
  • the wash ink layer with a small layer thickness is applied to the relief area and the flat area in step W) as an ultrathin color layer in a flexographic printing step.
  • wash ink of normal layer thickness is simultaneously applied in a demetallization region in step, the demetallization region is metallized in step M), and that in step A) in the demetallization region the wash color of normal layer thickness together with the overlying Metallization removed and the Demetallmaschines Kunststoff is thereby demetallinstrument.
  • the security element on the support can also contain a conventional, large-area metallized subarea in which there are no relief structures.
  • the washing ink is advantageously applied in a solvent atmosphere.
  • the metallization in step M) is advantageously formed by a single metal layer, preferably with a thickness between 5 nm and 100 nm, or by one or more individual metal layers in a multi-layer structure.
  • a single metal layer for example, an aluminum, chromium or copper layer can be applied.
  • the metal layer and possible further layers of the multilayer structure are preferably vapor-deposited (by means of CVD or PVD methods).
  • Multilayer structures can be produced, for example, in the form of a color-shifting thin-film element with a metallic absorber layer, a dielectric spacer layer and a metallic reflector layer. With the metal layer of the metallization optionally also non-metallic layers can be removed at the same time.
  • the invention also includes a security element for securing valuables, which can be produced by a method of the type mentioned.
  • the security element contains a carrier with a metallized relief structure with elevations and depressions and a narrow demetallised flat area without elevations and depressions which has been adapted to the relief structure.
  • the flat region separates at least two partial regions of the relief region from one another and has a width of less than 1000 ⁇ m, preferably a width of between 10 ⁇ m and 500 ⁇ m, in particular between 10 ⁇ m and 250 ⁇ m.
  • the relief structure advantageously consists of structural elements with pointed elevations, in particular in the form of prisms or of pyramids of three, four or more sides.
  • the elevations and depressions of the relief structure form advantageous structural elements with a height of more than 0.5 microns, preferably more than 1 micron or more than 2 microns, in particular of about 4 microns.
  • the height of the structures is-in each case-preferably less than 8 ⁇ m, that is to say in particular between 0.5 and 8 ⁇ m, preferably between 2 and 8 ⁇ m or particularly preferably between 3 and 5 ⁇ m.
  • the lateral extent of the structural elements is preferably less than 100 ⁇ m and, for example, 10 ⁇ m to 30 ⁇ m.
  • FIG. 1 shows a schematic representation of a banknote 10, which is provided with a security element according to the invention in the form of a film patch 12.
  • the invention is not limited to the transfer element shown in the illustration for banknotes, but can also be used, for example, in security threads, wide security strips or cover foils which are arranged above an opaque area, a window area or a through opening of any desired data carrier.
  • the foil patch 12 shows a metallized, for the viewer out of the x-y plane of the security element Unewölbendes, three-dimensional relief motif 14, which may be formed for example in the form of a portrait, an architectural or technical motif or a nature motif.
  • the relief motif 14 contains not only metallized subregions but also demetallized subregions which, on the one hand, have a creative function within the image motif, but on the other hand can also assume the information-carrying function and can, for example, represent a negative typeface.
  • the demetallized subregions are conventionally produced by the imprint of wash ink and a washout step after the metallization, only relatively large-area subregions with the smallest dimension of 1 mm or a line thickness of 100 ⁇ m or more can be introduced.
  • FIGS. 2 and 3 a detail 16 of the relief motif 14, wherein Fig. 2 a supervision and Fig. 3 a cross section along the line III-III of Fig. 2 represents.
  • the detail could be a button, an epaulette or, for example, an eye (elsewhere in the subject).
  • the detail 16 of the relief motif 14 contains a metallized relief region 20 with partial regions 22, 24, a large demetallized region 26 and a narrow, demetallized strip 28, which separates the two metallized partial regions 22, 24 of the relief region 20 from one another.
  • the relief structure of the partial regions 22, 24 on a plurality of inclined, small micromirror 30, which reflect due to their metallization incident light efficiently in a predetermined direction. Due to their orientation, the micromirrors 30 give the viewer the impression of a predetermined three-dimensional relief motif 14, for example the portrait of the person Fig. 1 ,
  • the demetallized strip 28 separating the two subregions 22, 24 is very delicate and, in the exemplary embodiment, has a width of only 50 ⁇ m.
  • the demetallized flat area 38 is arranged in perfect register with the metallized relief areas 22, 24.
  • conventional printing of wash paint does not produce such narrow demetallized structures.
  • the method according to the invention is based on the surprising finding of the inventors that the toning film, which is unavoidable in terms of process technology, can be used and utilized in a simple and reliable manner to produce filigree, precisely matched demetallised structures 28 within metallized relief structures 22, 24.
  • FIG. 4 (a) An embossing lacquer layer 42 is applied to a carrier film 40 and the desired relief structure with the arrangement of micromirrors 30 is embossed into the embossing lacquer layer 42.
  • the relief structure is provided in a relief area with two partial areas 32, 34 whose shape and size are precisely the shape and size of the areas to be metallized 22, 24 (FIG. Fig. 2 ) corresponds.
  • the micromirrors 30 thereby form elevations and depressions in the embossing lacquer layer 42, which in the exemplary embodiment have a structure width of approximately 10 ⁇ m and, depending on the angle of inclination of the micromirrors 30, a structure height of up to approximately 8 ⁇ m.
  • the two partial areas 32, 34 are separated from each other by a narrow flat area 38, in which there are no micromirrors or other elevations or depressions. Outside the subregions 32, 34, a large-area demetallization region 36 is provided in which likewise no metallization should be present in the finished security element 12.
  • the large-area demetallization area 36 has a smallest dimension of more than 1 mm and can therefore be demetallized by the imprint of wash ink and a subsequent wash step in a conventional manner, this is not possible for the narrow flat area 38 because wash color is not so low line width still with the required accuracy relative to the height-structured portions 32, 34 can be applied.
  • wash ink is printed by gravure printing only on the demetalization regions 36 and other large-area demetallization regions of the carrier 40, 42 and thereby deliberately exploited the normally unwanted toning.
  • the inventors have surprisingly found that the in the nominally unprinted surface areas 32, 34, 38 unavoidable Tonungsfilm in the flat areas 38 and in the height-structured areas 32, 34 has different effects on the subsequent demetallization: During the thin Tonungsfilm the wash color in the narrow Flat areas 38 leads to a substantial or even complete Demetallmaschine finds in the height-structured areas 32, 34 despite the Tonung no demetallization instead.
  • this phenomenon is currently understood as follows: With reference to Fig. 4 (b)
  • the wash ink 44 is printed in the large-area demetallization regions 36 in a layer thickness d sufficient for a safer demetallization.
  • a thin toning film 46, 48 is produced by the toning which is unavoidable in gravure printing.
  • This thin toning film 48 now forms a substantially continuous thin wash-ink layer in the flat areas 38.
  • the elevations and depressions of the micromirrors 30 act as small spacers for the color-guiding gravure cylinder, so that the latter only comes into contact with the tips of the micromirrors 30 comes and transfers only to this wash 46.
  • the surface density of the transferred Tonungsfilms 46 can be influenced on the one hand by the shape of the surveys, on the other hand, but also by the properties of the wash and the process conditions during the printing process.
  • the contact surface of the height-structured regions can be kept very small with the gravure cylinder by pointed elevations.
  • the toning of the wash color can be influenced by the pigmentation of the wash color, the choice of the binder or by the electrostatics during the printing process.
  • the carrier 40, 42 provided with wash ink 44, 46, 48 is provided in the usual manner over its entire area with a metal layer 50 which covers both the demetallization areas 36 and the flat areas 38 and the height-structured micromirror areas 32, 34, as in FIG Fig. 4 (c) shown.
  • Simple metallizations made of Al, Cr, Cu and the like, as well as multi-layer structures with one or more metal layers may be considered as the metal layer 50.
  • the metallized support is subjected to a washing-out step with a solvent, for example water, in which the washing color 44 with the metallization 50 in the demetallization regions 36 is completely or completely removed in the flat regions 38.
  • a solvent for example water
  • the metallization in the height-structured regions 32, 34 is retained and forms the desired metallized regions 22, 24, since the surface density and the cohesion of the wash-dye layer 46 are not there for demetallization suffice.
  • the desired register-accurate filigree demetallization of the flat area 38 is also created.
  • the toning can be deliberately increased to the extent that the demetallization in the flat area 38 is promoted, but without producing undesired demetallization in the height-structured regions 32, 34.
  • demetallization in the flat area 38 is preferably complete, this is not absolutely necessary for many applications, since small metal residues hardly appear in the narrow flat areas 38 between the reflective areas 22, 24.
  • the separating effect of the strips 28 already occurs when the metallization of the flat areas is largely, ie, for example, 70% or more removed.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
EP18000456.6A 2017-05-18 2018-05-14 Procédé de fabrication d'un élément de sécurité pourvu d'une zone en relief métallisée Active EP3403844B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017004784.7A DE102017004784A1 (de) 2017-05-18 2017-05-18 Verfahren zum Herstellen eines Sicherheitselements mit einem metallisierten Reliefbereich und zugehöriges Sicherheitselement

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EP3403844A1 true EP3403844A1 (fr) 2018-11-21
EP3403844B1 EP3403844B1 (fr) 2021-08-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020216466A1 (fr) * 2019-04-26 2020-10-29 Giesecke+Devrient Currency Technology Gmbh Procédé de fabrication d'un élément de sécurité et élément de sécurité

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1972462A2 (fr) * 2007-01-05 2008-09-24 Giesecke & Devrient GmbH Procédé de fabrication de feuilles de sécurité
WO2009083146A2 (fr) * 2007-12-21 2009-07-09 Giesecke & Devrient Gmbh Procédé de réalisation d'une microstructure
WO2009100869A2 (fr) * 2008-02-12 2009-08-20 Giesecke & Devrient Gmbh Élément de sécurité et procédé pour le produire
WO2017028950A1 (fr) * 2015-08-17 2017-02-23 Giesecke & Devrient Gmbh Élément de sécurité, procédé de production de ce dernier et support de données équipé de l'élément de sécurité

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0537439B2 (fr) * 1991-10-14 2003-07-09 OVD Kinegram AG Elément de sécurité
DE19739193B4 (de) * 1997-09-08 2006-08-03 Giesecke & Devrient Gmbh Verfahren zur Herstellung von Sicherheitsfolien für Wertpapiere
DE102005034671A1 (de) * 2005-07-25 2007-02-01 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
DE102006037431A1 (de) * 2006-08-09 2008-04-17 Ovd Kinegram Ag Verfahren zur Herstellung eines Mehrschichtkörpers sowie Mehrschichtkörper
DE102015106800B4 (de) * 2015-04-30 2021-12-30 Leonhard Kurz Stiftung & Co. Kg Verfahren zum Herstellen eines Mehrschichtkörpers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1972462A2 (fr) * 2007-01-05 2008-09-24 Giesecke & Devrient GmbH Procédé de fabrication de feuilles de sécurité
WO2009083146A2 (fr) * 2007-12-21 2009-07-09 Giesecke & Devrient Gmbh Procédé de réalisation d'une microstructure
WO2009100869A2 (fr) * 2008-02-12 2009-08-20 Giesecke & Devrient Gmbh Élément de sécurité et procédé pour le produire
WO2017028950A1 (fr) * 2015-08-17 2017-02-23 Giesecke & Devrient Gmbh Élément de sécurité, procédé de production de ce dernier et support de données équipé de l'élément de sécurité

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020216466A1 (fr) * 2019-04-26 2020-10-29 Giesecke+Devrient Currency Technology Gmbh Procédé de fabrication d'un élément de sécurité et élément de sécurité

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