EP2886356A2 - Procédé de fabrication d'un document de valeur et d'un élément de sécurité, document de valeur et élément de sécurité ainsi obtenus et dispositif d'exécution du procédé - Google Patents
Procédé de fabrication d'un document de valeur et d'un élément de sécurité, document de valeur et élément de sécurité ainsi obtenus et dispositif d'exécution du procédé Download PDFInfo
- Publication number
- EP2886356A2 EP2886356A2 EP14003880.3A EP14003880A EP2886356A2 EP 2886356 A2 EP2886356 A2 EP 2886356A2 EP 14003880 A EP14003880 A EP 14003880A EP 2886356 A2 EP2886356 A2 EP 2886356A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- effect pigments
- substrate
- crosslinkable
- layer
- pigments
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 49
- 239000000049 pigment Substances 0.000 claims abstract description 101
- 239000000758 substrate Substances 0.000 claims abstract description 76
- 230000000694 effects Effects 0.000 claims abstract description 67
- 238000007650 screen-printing Methods 0.000 claims abstract description 34
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000004132 cross linking Methods 0.000 claims abstract description 13
- 230000009969 flowable effect Effects 0.000 claims abstract description 12
- 238000004049 embossing Methods 0.000 claims description 85
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 22
- 238000007639 printing Methods 0.000 claims description 18
- 229910052737 gold Inorganic materials 0.000 claims description 13
- 239000010931 gold Substances 0.000 claims description 13
- 229910052759 nickel Inorganic materials 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- 229910052723 transition metal Inorganic materials 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 150000003624 transition metals Chemical class 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052793 cadmium Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052741 iridium Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910001120 nichrome Inorganic materials 0.000 claims description 4
- 229910052762 osmium Inorganic materials 0.000 claims description 4
- BWOROQSFKKODDR-UHFFFAOYSA-N oxobismuth;hydrochloride Chemical compound Cl.[Bi]=O BWOROQSFKKODDR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 229910052703 rhodium Inorganic materials 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- 239000010944 silver (metal) Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 111
- 239000000976 ink Substances 0.000 description 41
- 239000010408 film Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 239000004922 lacquer Substances 0.000 description 9
- 239000004033 plastic Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 5
- 229920000106 Liquid crystal polymer Polymers 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000010147 laser engraving Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- NLDDQRVTQQXDTH-UHFFFAOYSA-K Cl[Bi](Cl)(Cl)=O Chemical compound Cl[Bi](Cl)(Cl)=O NLDDQRVTQQXDTH-UHFFFAOYSA-K 0.000 description 1
- -1 Edelstahl Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 229940068603 bismuth chloride oxide Drugs 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000003098 cholesteric effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 229910001254 electrum Inorganic materials 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000010940 green gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000307 polymer substrate Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
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- 125000006850 spacer group Chemical group 0.000 description 1
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- 239000012780 transparent material Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
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
- B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
-
- 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
- B42D25/364—Liquid crystals
-
- 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
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
-
- 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
- B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
Definitions
- the invention relates to a method for producing a value document, in particular a banknote, and to a method for producing a security element.
- the invention further relates to a value document, in particular a banknote, and a security element obtainable by the method and to an apparatus for carrying out the method.
- Value documents within the meaning of the invention include, among others, banknotes, stocks, bonds, certificates, vouchers, checks, air tickets, high-quality admission tickets, labels for product security, credit or debit cards, but also other documents that are subject to counterfeiting, such as passports, identity cards or other identity documents.
- the embossing of printed layers based on effect pigments is known in securities printing.
- intaglio printing applied to a value document substrate, already through-hardened, OVI® pigments or similar pigments containing color layers can be blind embossed in a subsequent step. Due to the high pressure, the surface of the value document substrate adapts to the engraved surface of the printing form (in particular a intaglio printing plate) used for the blind embossing.
- the disadvantage of such a method is, inter alia, that the pigments are almost fixed with respect to their spatial orientation within the printing layer, so that a reorientation of the pigments is only possible to a limited extent.
- the WO 2012/084169 A1 describes an optically variable element, in particular a security element, with three-dimensional appearing structures (reference number 5 in the therein contained FIG. 2 ) and tactile embossed structures (reference number 4), which are formed by blind embossing of a reflective substrate by means of a (puncture) pressure plate.
- the structures of the gravure printing plate can be produced in particular by laser engraving.
- the DE 102010029423 A1 in claim 1 defines a method for producing a structured layer on a sheet material (6) in a processing machine, comprising means (A) for coating the sheet material (6) with a lacquer layer, and subsequently a device (B) deforming the surface of the lacquer layer wherein from one of the sheet material (6) in the conveying direction (3) leading impression cylinder (2) and a further cylinder (1, 30) a press nip (10) is formed, through which the sheet material (6) is guided with the overlying lacquer layer, and wherein the surface of the sheet material (6) opposite a structural layer (7) is arranged, wherein in the press nip (10) the structural layer (7) by means of a force on the lacquer layer coated sheet material (6) is pressed, characterized in that exclusively in the press nip (10) a surface-related force is generated on the sheet material (6) with lacquer layer and the structural layer (7), that, following the press nip (10), the structural layer (7) and on
- the WO 2012/079674 A1 in claim 1 defines a method for producing three-dimensional patterns in coatings, wherein a flowable coating composition is applied to a substrate to form a first layer and the first layer in a non-solidified state with a tool having a surface with protrusions in contact bringing the protrusions of the tool into recesses in the first layer, removing the tool, and optionally coating the first well-containing layer with a second coating composition to form a second layer, wherein at least one of the coating compositions contains platelet-shaped effect pigments Tool is a printing plate for a high-pressure process, the recesses in the first layer are not deeper than 10 microns and the layer (s) is (are) solidified.
- the present invention has for its object to provide a method for producing a value document and a security element, which is improved over the manufacturing process known in the art.
- the security against counterfeiting of the value documents and security elements obtainable by the method should be increased.
- an apparatus for carrying out the manufacturing process is to be provided.
- the invention is based on the idea to use the second screen printing of a screen printing machine as embossing instead of as usual as a printing unit.
- first UV drying device By means of a arranged between the first screen printing unit and the second screen printing unit UV drying device (hereinafter also referred to as “first UV drying device” or as “UV intermediate dryer”), the viscosity of the first screen printing on the (value document) Substrate applied, UV-crosslinkable ink layer controlled specifically on the UV power.
- the second screen printing unit no printing takes place, but a precise or register-accurate embossing of the ink layer applied by means of the first screen printing unit.
- a metal embossing plate in particular a nickel embossing plate, instead of a screen printing stencil customary in screen printing.
- a structured (plastic) film can be used as a stamping tool. The adhesion of paint to the embossing tool can be avoided by a suitable adjustment of the degree of cure of the ink layer when passing through the UV intermediate dryer.
- UV drying device which is also referred to below as “second UV drying device” or as “UV end drier”
- the production process according to the invention makes it possible to provide strong embossings (which are also referred to below as “macroscopic structure” or “macroscopic embossing”) within the UV-crosslinkable Color layer, wherein the recesses have a depth in a range of 13 microns to 30 microns.
- the depressions are in particular in a range of 13 microns to 25 microns, preferably in a range of 15 microns to 25 microns.
- the ink layer applied to the substrate by means of the screen printing unit preferably has a layer thickness in a range of 13 ⁇ m to 40 ⁇ m.
- the depressions of the macroscopic embossing structure can have a certain depth, which is identical to the layer thickness of the color layer applied to the substrate. In this way, an embossed relief can be produced whose embossing depth extends at least partially down to the level of the substrate.
- the depressions of the macroscopic embossing structure (or at least one or a part of the depressions) according to a preferred embodiment to a certain depth, which is smaller than the layer thickness of the applied to the substrate ink layer.
- the macroscopic embossment described above can additionally be superimposed by a fine structure, in particular a mesoscopic or nanoscopic structure (hereinafter referred to as "fine embossing structure").
- the fine embossing structure superimposed on the macroscopic embossing structure preferably has depressions with a depth in a range of 0.1 ⁇ m to 10 ⁇ m, more preferably 0.5 ⁇ m to 10 ⁇ m.
- the fine embossed structure can, for example, form a diffraction structure which spectrally splits the incident electromagnetic radiation.
- the structured surface of the fine embossed structure may be formed periodically or else stochastically in one or two spatial directions.
- the macroscopic embossed structure may e.g. have a series of repeating macroscopic pits.
- a macroscopic embossing structure may comprise planar surface sections at two different height levels, or the macroscopic embossing structure may be formed as a multilevel structure, the multilevel structure preferably comprising planar surface sections at n different height levels, where n is at least 3 and at most 16.
- the macroscopic embossed structure may e.g. have a series of repeating macroscopic pits such that the macroscopic embossing pattern contains planar surface portions at two different elevation levels, namely at a lower level and at an upper level.
- the flat surface portions on the lower and / or the upper level may be (completely or partially) provided with a fine embossed structure.
- the macroscopic embossing structure may or may not necessarily have a series of repeating macroscopic depressions. Also conceivable are macroscopic embossed structures with raised and recessed areas, the raised areas each having a different shape. In addition, the distance between the raised areas may vary. Also, the individual recessed areas may each have a different depth and / or the individual raised areas may each have a different height. Furthermore, it is not absolutely necessary for flat surface sections to be present within the macroscopic embossed structure, but for the macroscopic embossing structure to be formed exclusively from curved or round structural elements, for example.
- the fine embossed structure can furthermore form a microwriting.
- mesoscopic structures can be regularly shaped (so-called sawtooth) or irregularly arranged micromirrors.
- optical effects e.g. vaulted representations, flip-pictures, run-effects, or so-called “rolling-bar” effects (i.e., an effect whereby the viewer perceives moving bars).
- embossments of microlenses in the UV-crosslinkable ink layer can also be provided.
- nanoscopic structures e.g. diffractive structures are generated in the UV-crosslinkable ink layer.
- optically variable security features in the form of diffraction-optically active microstructures or nanostructures is known in the prior art in connection with embossed holograms or other hologram-like diffraction structures (see, for example, the publications EP 0 330 733 A1 or EP 0 064 067 A1 ).
- the use of (micro) lens systems as a security feature is for example from the publications EP 0 238 043 A2 and DE 36 09 090 A1 in which the impressing of a grid of a plurality of parallel cylindrical lenses is described in the surface of a security thread of a transparent material.
- the UV-crosslinkable printing ink to be applied by means of the first screen printing unit to the (value-document) substrate is preferably applied in the kiss-print method.
- the term "kiss print” here is to be understood as the smallest possible contact between the application form and the substrate to be provided with the ink.
- the kiss-print method is known in the art with regard to the coating or coloring of printing substrates (see, for example, " Handbuch der Printmedien "by H.
- the UV-crosslinkable ink layer used in the process according to the invention is based on an effect pigment / binder combination.
- Interference pigments typically have a thin film structure that includes a reflective layer, a partially transparent layer, and one or more intervening dielectric spacer layers. These are based, for example, on mica, on SiO 2 or on Al 2 O 3 . Such interference layers are referred to as one or more layers according to the number of dielectric layers. Inks with pigments such thin film interference layers, for example, under the name Iriodin ® (single layer) or Colorcrypt ® (multi-layer) marketed by Merck KGaA. Printing inks with multilayered interference-layer pigments are also sold under the name OVI ® by the company SICPA.
- a subgroup of the interference layer pigments are cholesteric or other liquid crystals which may also be used. These are, for example, as liquid-crystalline silicone polymers before or as pigments in so-called STEP ® Colors ( "Shimmery Twin Effect Protection"). Pigments based on liquid-crystalline polymers are known, for example, from US Pat WO 2008/000755 A1 known.
- the ink used in the invention can also on the in the WO 2011/064162 A2 Color effect effect pigment compositions described are based.
- the pigments have a longest dimension of edge length from end-to-end in a range of 15 nm to 1000 nm and are based on a transition metal selected from the group consisting of Cu, Ag, Au, Zn , Cd, Ti, Cr, Mn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir and Pt.
- the transition metal is preferably Ag.
- the aspect ratio ie the ratio of the longest end-to-end dimension in terms of thickness
- the ratio of the binder to metal pigment is below 10: 1, especially below 5: 1.
- the color can be seen in transmission and the color when viewed in reflection (eg, blue in Transmission and silver, gold, bronze, copper or violet in reflection, in addition also violet, magenta, pink, green or brown in transmission and different colors in reflection, which depend on the choice of pigment / binder ratio).
- Colors with Gold / blue color change between reflection and transmission are, for example, in Examples 1, 2 and 3 in Table 1 of FIG WO 2011/064162 A2 called.
- Example 4 shows a color with gold / violet color change, Example 5 a color with green-gold / magenta color change, Example 7 a color with violet / green color change and Example 8 a color with silver / opaque color change.
- the ink used in the invention can also on the in the WO 2005/051675 A2 (See in particular the description on page 11, line 10, to page 12, penultimate paragraph) based metal pigment compositions.
- the pigments are based on a metal, which is preferably selected from the group consisting of aluminum, stainless steel, nichrome, gold, silver, platinum and copper.
- the metal is particularly preferably aluminum, wherein the average particle diameter is preferably in a range of 8 to 15 ⁇ m, more preferably in a range of 9 to 10 ⁇ m, measured with a Coulter LS130 laser diffraction granulometer.
- Such ink allows the provision of a "silver" mirror layer.
- the metal pigment compositions (eg, yellow) may be colored.
- the color layer may also be based on transparent primer UV systems, which may be highly refractive.
- transparent primer UV systems which may be highly refractive.
- embossing a transparent UV varnish the same can be overprinted to improve the visibility of the three-dimensional effect with a "metallic" acting, in particular reflective or reflection-enhancing, color.
- the color used for the overprinting can have (metal) effect pigments.
- the ink layer can furthermore be based on colored, high-gloss, UV-drying screen printing ink systems, which preferably have a small particle size (preferably ⁇ 2 ⁇ m).
- the second screen printing unit no printing takes place, but a precise or register-accurate embossing of the ink layer applied by means of the first screen printing unit.
- a metal embossing plate in particular a nickel embossing plate, as an embossing mold instead of a screen printing stencil customary in screen printing.
- the stamping mold may e.g. by laser engraving, by using a laserwriter, or by photochemical exposure (e.g., "Nylograv's method"). This is followed by the galvanic production of a work original, which in turn is converted by galvanic molding into a nickel embossing sheet. The nickel embossing sheet is then stretched to the full extent on the sieve mounting rings.
- embossing strips or structured (plastic) films as embossing tool is possible.
- the printing is done as in the classic screen printing by the provision of the squeegee.
- a flexible pressure body can be introduced into the interior of the "sieve". If it is supplied with air or another gas, the embossing shim (i.e., the nickel embossing sheet) can be additionally stabilized from the back side. Dents and bumps can be avoided in this way. For further stabilization stiffening structures can also be applied on the nickel embossing plate on the back.
- the nickel embossing plate may conveniently additionally cooled from the back, for example by air or heated by means of resistance heating, so that the embossing effects can be additionally influenced.Auch the release or detachment behavior of the ink from the embossing mold can be optimized in this way.
- the value document substrate which is provided with UV-crosslinkable ink according to the method according to the invention can be in particular a security paper.
- a security paper is understood to be a value document that can not yet be processed.
- the term security paper also includes paper-like substrates, for example plastic or polymer substrates, or paper / plastic multilayer substrates, such as a plastic / paper / plastic substrate or a paper / plastic / paper substrate.
- Under a plastic / paper / plastic substrate is a substrate with a paper center layer to understand, which is provided on both sides with a plastic layer or foil (see the WO 2004/028825 A2 ).
- a paper / plastic / paper substrate is out of the WO 2006/066431 A1 known.
- a security element is usually provided with a functional layer having a security feature, for example an optically variable coating. It is particularly useful if the security element is adhered by means of an adhesive, for example by means of a heat seal lacquer, on the valuables or the security paper. Such a security element is eg a patch.
- the security element is usually provided together with further security elements on a carrier (or carrier substrate) serving, strip-shaped continuous foil and transmitted from there to the surface of a security paper or a valuable item.
- a strip-shaped endless film is provided as a roll product, that is to say wound up as an endless belt on a roll, wherein the endless film is of course not endless and thus infinitely long, but in particular has a length in the range of kilometers.
- Machines for applying security elements to the surface of a security paper or a valuable item are commercially available, eg OptiNota H® from König & Bauer AG. Such a device allows the exact fit or register accurate application of security elements in the form of film strips on paper sheets.
- the method according to the invention is also suitable for providing security documents, in particular banknotes, which are provided with a see-through security feature, such as a see-through window.
- FIG. 1 shows a cross-sectional view of a document of value, in the present case a banknote, with a (paper) substrate 1 and according to the invention applied UV-crosslinked, effect pigments containing color layer 2.
- the color layer 2 has a macroscopic embossing pattern in the form of repeating macroscopic Depressions on.
- the macroscopic embossing structure contains planar surface sections at two different height levels, ie on a lower level and on an upper level.
- the macroscopic embossed structure is superimposed by a fine embossed structure in the areas of the planar surface sections formed on the upper level.
- FIG. 2 shows a cross-sectional view of another document of value, in the present case a banknote, with a (paper) substrate 1 and a UV-crosslinked, effect pigments containing color layer 2 applied according to the method of the invention.
- the color layer 2 has a macroscopic embossing structure in the form of repeating macroscopic depressions.
- the macroscopic embossing structure contains planar surface sections at two different height levels, ie on a lower level and on an upper level.
- the macroscopic embossed structure is superimposed by a fine embossed structure in the areas of the flat surface sections formed on the lower level.
- FIG. 3 shows a cross-sectional view of a document of value, in the present case a banknote, with a (paper) substrate 1 and according to the invention applied UV-crosslinked, effect pigments containing color layer 2.
- the color layer 2 has a macroscopic embossing pattern in the form of repeating macroscopic Depressions on.
- the macroscopic embossing structure contains planar surface sections at two different height levels, ie on a lower level and on an upper level.
- the macroscopic embossed structure is superimposed by a fine embossed structure in the areas of the planar, on the upper and on the lower level formed surface sections.
- FIG. 4 shows a cross-sectional view of a document of value, in the present case a banknote, with a (paper) substrate 1 and a UV-crosslinked, effect pigments containing color layer 2 applied according to the method of the invention FIGS. 1 to 3
- the ink layer 2 contains the FIG. 4 no macroscopic embossing structure with regularly repeating structural units.
- the macroscopic embossing pattern includes raised areas, each differing in shape and spaced differently.
- the macroscopic embossing structure contains planar surface sections at two different height levels, ie on a lower level and on an upper level.
- the macroscopic embossing structure is partially overlaid by a fine embossed structure in the areas of the planar surface sections formed on the lower level.
- the fine embossing structure is different from macroscopic depression to macroscopic depression.
- FIG. 5 shows a cross-sectional view of a document of value, in this case a banknote, with a (paper) substrate 1 and a UV-crosslinked effect pigments applied according to the method of the invention
- the color layer 2 has a macroscopic embossed structure with non-repeating macroscopic depressions.
- the macroscopic embossing structure contains a planar surface section formed only at one height level, in which the macroscopic embossing structure is superimposed by a fine embossing structure.
- FIG. 6 shows the detail of a top view of a document of value, in the present case a banknote, with a according to the process of the invention applied UV-crosslinked, effect pigments containing color layer.
- the color layer contains an embossed structure with the recognizable and tactile perceptible characters "A" and "B". The two characters are created by tangible bulges in the color layer.
- FIG. 7 shows cross-sectional views along in the FIG. 6 shown line AA '(see the left side of FIG. 7 ) and along in the FIG. 6 shown line BB '(see the right side of FIG. 7 ).
- the tactile curvature corresponds to the dashed line, the fine embossing structure or microstructure always deflects incident light in the region of the character "A” to the right and always in the region of the character "B” to the left. In the case of vertical light, a viewer sees the sign "A" from the right and the sign "B” lights up brightly from the left.
- the fine embossed structure or microstructure may only be present in regions in the macrostructure, for example in the form of a pattern or a microprint.
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DE102013019585.3A DE102013019585A1 (de) | 2013-11-21 | 2013-11-21 | Verfahren zum Herstellen eines Wertdokuments und eines Sicherheitselements, daraus erhältliches Wertdokument und Sicherheitselement und Vorrichtung zur Durchführung des Verfahrens |
Publications (3)
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EP2886356A2 true EP2886356A2 (fr) | 2015-06-24 |
EP2886356A3 EP2886356A3 (fr) | 2015-08-19 |
EP2886356B1 EP2886356B1 (fr) | 2017-03-08 |
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EP14003880.3A Active EP2886356B1 (fr) | 2013-11-21 | 2014-11-18 | Procédé de fabrication d'un document de valeur et d'un élément de sécurité et dispositif d'exécution du procédé |
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EP3124285A1 (fr) * | 2015-07-27 | 2017-02-01 | Giesecke & Devrient GmbH | Outil d'estampage destine a fabriquer un element de securite ayant une structure optique variable |
EP3124284A1 (fr) * | 2015-07-31 | 2017-02-01 | Giesecke & Devrient GmbH | Structures tactiles sur des objets de valeur |
EP3135495A1 (fr) * | 2015-08-07 | 2017-03-01 | Giesecke & Devrient GmbH | Élément de sécurité imprimé |
CN107167858A (zh) * | 2017-06-07 | 2017-09-15 | 苏州苏大维格光电科技股份有限公司 | 安全薄膜及其制作方法 |
US10252563B2 (en) | 2015-07-13 | 2019-04-09 | Wavefront Technology, Inc. | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products |
EP3511177A1 (fr) * | 2018-01-12 | 2019-07-17 | Giesecke+Devrient Currency Technology GmbH | Élément de sécurité doté d'une structure estampée optiquement variable |
EP3511176A1 (fr) | 2018-01-15 | 2019-07-17 | Giesecke+Devrient Currency Technology GmbH | Élément de sécurité doté d'une structure optique variable dans une cavité |
WO2020083794A1 (fr) | 2018-10-25 | 2020-04-30 | Basf Se | Compositions comprenant des nanoplaquettes d'argent |
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US10859851B2 (en) | 2014-10-24 | 2020-12-08 | Wavefront Technology, Inc. | Optical products, masters for fabricating optical products, and methods for manufacturing masters and optical products |
EP3391102B1 (fr) | 2015-12-18 | 2021-01-27 | Visual Physics, LLC | Film de projection d'image monocouche |
US11113919B2 (en) | 2017-10-20 | 2021-09-07 | Wavefront Technology, Inc. | Optical switch devices |
US11221448B2 (en) | 2019-04-19 | 2022-01-11 | Wavefront Technology, Inc. | Animated optical security feature |
WO2022053827A3 (fr) * | 2020-09-11 | 2022-04-21 | De La Rue International Limited | Dispositifs de sécurité et leurs procédés de fabrication |
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WO2020152021A1 (fr) | 2019-01-21 | 2020-07-30 | Basf Se | Élément de sécurité |
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WO2023072740A1 (fr) | 2021-10-26 | 2023-05-04 | Basf Se | Procédé pour la production d'éléments d'interférence |
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EP3124285A1 (fr) * | 2015-07-27 | 2017-02-01 | Giesecke & Devrient GmbH | Outil d'estampage destine a fabriquer un element de securite ayant une structure optique variable |
EP3124285B1 (fr) | 2015-07-27 | 2020-06-17 | Giesecke+Devrient Currency Technology GmbH | Outil d'estampage destine a fabriquer un element de securite ayant une structure optique variable |
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EP3135495A1 (fr) * | 2015-08-07 | 2017-03-01 | Giesecke & Devrient GmbH | Élément de sécurité imprimé |
EP3391102B1 (fr) | 2015-12-18 | 2021-01-27 | Visual Physics, LLC | Film de projection d'image monocouche |
EP3391102B2 (fr) † | 2015-12-18 | 2023-11-01 | Visual Physics, LLC | Film de projection d'image monocouche |
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US10850550B2 (en) | 2016-04-22 | 2020-12-01 | Wavefront Technology, Inc. | Optical switch devices |
CN107167858A (zh) * | 2017-06-07 | 2017-09-15 | 苏州苏大维格光电科技股份有限公司 | 安全薄膜及其制作方法 |
US11861966B2 (en) | 2017-10-20 | 2024-01-02 | Wavefront Technology, Inc. | Optical switch devices |
US11113919B2 (en) | 2017-10-20 | 2021-09-07 | Wavefront Technology, Inc. | Optical switch devices |
EP3511177A1 (fr) * | 2018-01-12 | 2019-07-17 | Giesecke+Devrient Currency Technology GmbH | Élément de sécurité doté d'une structure estampée optiquement variable |
DE102018000243A1 (de) | 2018-01-15 | 2019-07-18 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement mit einer optisch variablen Struktur in einer Vertiefung |
EP3511176A1 (fr) | 2018-01-15 | 2019-07-17 | Giesecke+Devrient Currency Technology GmbH | Élément de sécurité doté d'une structure optique variable dans une cavité |
WO2020083794A1 (fr) | 2018-10-25 | 2020-04-30 | Basf Se | Compositions comprenant des nanoplaquettes d'argent |
US11221448B2 (en) | 2019-04-19 | 2022-01-11 | Wavefront Technology, Inc. | Animated optical security feature |
WO2022053827A3 (fr) * | 2020-09-11 | 2022-04-21 | De La Rue International Limited | Dispositifs de sécurité et leurs procédés de fabrication |
Also Published As
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EP2886356A3 (fr) | 2015-08-19 |
EP2886356B1 (fr) | 2017-03-08 |
DE102013019585A1 (de) | 2015-05-21 |
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