EP3468811A1 - Élément de sécurité, substrat de document de valeur, document de valeur équipé de ce dernier et procédé de fabrication - Google Patents
Élément de sécurité, substrat de document de valeur, document de valeur équipé de ce dernier et procédé de fabricationInfo
- Publication number
- EP3468811A1 EP3468811A1 EP17728445.2A EP17728445A EP3468811A1 EP 3468811 A1 EP3468811 A1 EP 3468811A1 EP 17728445 A EP17728445 A EP 17728445A EP 3468811 A1 EP3468811 A1 EP 3468811A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate
- embossing
- region
- security element
- banknote
- 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
- 239000000758 substrate Substances 0.000 title claims abstract description 195
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000004049 embossing Methods 0.000 claims abstract description 105
- 239000000049 pigment Substances 0.000 claims abstract description 81
- 238000007639 printing Methods 0.000 claims abstract description 47
- 230000000694 effects Effects 0.000 claims abstract description 21
- 239000004922 lacquer Substances 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 23
- 239000002131 composite material Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 49
- 239000000976 ink Substances 0.000 description 20
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 229920001169 thermoplastic Polymers 0.000 description 10
- 239000004416 thermosoftening plastic Substances 0.000 description 10
- 239000011888 foil Substances 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 239000003973 paint Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000003086 colorant Substances 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004040 coloring Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- -1 alkyl phosphonic acids Chemical class 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- UIERETOOQGIECD-ARJAWSKDSA-N angelic acid group Chemical group C(\C(\C)=C/C)(=O)O UIERETOOQGIECD-ARJAWSKDSA-N 0.000 description 1
- 239000013011 aqueous formulation Substances 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003098 cholesteric effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N ***e 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
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910001254 electrum Inorganic materials 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000010940 green gold Substances 0.000 description 1
- 239000004920 heat-sealing lacquer Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000002082 metal nanoparticle Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- B42D25/24—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
- B42D25/351—Translucent or partly translucent parts, e.g. windows
-
- 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
- B42D25/355—Security threads
-
- 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
Definitions
- the invention relates to a method for producing a
- the invention further relates to a security element obtainable by the method as well as value document substrate and, moreover, to a security document comprising the security element or value document substrate.
- Value documents such as banknotes, branded goods or
- Identification documents are often provided with security elements for the purpose of security, which allow verification of the authenticity of the value documents and at the same time serve as protection against unauthorized reproduction.
- Security elements with viewing-angle-dependent effects play a special role in the authentication of authenticity since they can not be reproduced even with the most modern copiers.
- the security elements are equipped with optically variable elements, which are the
- Color Shifting Effect due to such thin-film elements
- Spacer layer which determines the distance between a semi-transparent absorber layer and a reflective layer, and varies
- Path difference in the order of the wavelength of the visible light is due to extinction and amplification of certain wavelengths, an angle-dependent color impression for the viewer.
- a suitable choice of material and thickness of the dielectric spacer layer a variety of different color shift effects can be designed.
- the invention is based on the object
- Another task is to provide a simplified method for producing a value document substrate as well as a security element with a high counterfeit security and an attractive visual appearance which is suitable for securing a value document. Another task is to provide a
- Value document substrate or a security element suitable for securing value documents comprising a) providing a substrate;
- Substrate area and the printing of the substrate with effect pigments which assume a different color depending on the viewing angle, in a second substrate region;
- Microscale arrangement forms, or (ii) the substrate in the first substrate region has a relief structure which forms a micromirror arrangement, and the substrate in the second substrate region has a relief structure which forms a diffractive structure.
- the dimensions of the structural elements of the diffractive structure are preferably in the order of magnitude of the wavelength of light, more preferably in a range greater than 100 nm and less than .mu.m, with a range of greater than 300 nm and less than .mu.m being particularly preferred.
- the dimensions of the structural elements of the micromirror arrangement are preferably in a range which is greater than ⁇ and less than 40 ⁇ , with a range greater than ⁇ ⁇ and less than 30 ⁇ is particularly preferred.
- Micromirror arrangement for example, have a height of up to 15 ⁇ m and a lateral extent of up to 30 ⁇ m.
- additional tactile substrate embossments may be generated, e.g. in intaglio printing.
- both the tactile substrate embossings and the relief structures forming a micromirror arrangement or a diffractive structure are arranged in one
- Structural relief structures in a single embossing tool, e.g. an intaglio printing plate or a (engraving) printing cylinder or
- step b1) is carried out before the step b1), wherein in step b1) both the platelet-shaped metal pigments suitable for the formation of a reflection layer in the first substrate region, as well as those depending on
- Viewing angles adjust another color-accepting effect pigments in the second substrate region to the relief structure of the substrate in the respective substrate region.
- step b1) is carried out before step b1), wherein in step b1) both the platelet-shaped metal pigments suitable for the formation of a reflection layer in the first substrate region and also those depending on
- Viewing angles adjust effect pigments in the second substrate region adopting a different hue to the relief structure of the substrate in the respective substrate region.
- a value document substrate for producing a value document such as a banknote, in particular a paper banknote, polymer banknote or
- Folienverbundbanknote or a badge is suitable. 9. (Second aspect of the invention) value document substrate or
- value document according to paragraph 10, wherein the value document a banknote, in particular a paper banknote, a Polymer banknote or a composite foil banknote, or a badge is.
- a value document substrate or a security element suitable for securing value documents wherein the value document substrate or the security element comprises both tactile substrate stampings and
- microoptical structures the method comprising:
- microoptical structures are produced, wherein the step of embossing the first substrate region and the step of embossing the second substrate region are carried out in one operation.
- micro-optical structures are based on a micro-mirror arrangement forming a relief structure and / or based on a diffractive structure forming relief structure.
- the value document mentioned in the present description may be a banknote, in particular a paper banknote, a
- an identification card such as a credit card, a bank card, a cash card, an authorization card, an identity card or a pass personalization page.
- Substrate area and the printing of the substrate with effect pigments which assume a different color depending on the viewing angle, in a second substrate region;
- Microscale arrangement forms, or (ii) the substrate in the first substrate region has a relief structure which forms a micromirror arrangement, and the substrate in the second substrate region has a relief structure which forms a diffractive structure.
- step b1) can take place before step b2), or vice versa.
- the pigments used are so small that they are the
- Relief structures adapt very well, the implementation of the step of embossing b2) before the step of printing the substrate with the Pigments bl) are preferred. In the case of using larger pigments, it is preferable to carry out the step of printing the substrate with the pigments b1) before the embossing step b2).
- the relief structure forming a diffractive structure is in particular a hologram structure.
- diffractive structure are preferably of the order of magnitude
- Light wavelength more preferably in a range which is greater than lOOnm and less than ⁇ , with a range greater than 300nm and less than ⁇ is particularly preferred.
- the relief structure forming a micromirror arrangement is also referred to herein as a micro-optical relief structure.
- micro-optic relief structure is known in the art (see, for example, WO 201/060089 A2).
- Micro-mirror arrangement are preferably in a range which is greater than ⁇ and less than 40 ⁇ , with a range greater than ⁇ and less than 30 ⁇ : ⁇ is particularly preferred.
- ⁇ is particularly preferred.
- structural elements of the micromirror arrangement have a height up to and a lateral extent up to 30 ⁇ on. Both the height and the lateral extent of the
- Structural elements of the micromirror arrangement preferably greater than ⁇ .
- WO 2010/069823 AI WO 2005/051675 A2 (see therein eg the description on page 11, line 10, to page 12, penultimate paragraph) and WO 2011/064162 A2 known.
- the platelet-shaped metal pigments described therein have the advantage that they form a Substrate with relief structure, in particular a relief with
- Microstructures and / or nanostructures adapt so well that the difference to a conventional, available by vapor deposition metallization is almost unrecognizable.
- the simple, printing-technical production of the reflection layer makes it possible to dispense with complex process steps, such as printing the carrier with a soluble wash in the form of a desired recess within the reflection layer to be produced, generating a metallization by vapor deposition and washing the washing paint together with the above the washing paint applied metallization.
- the ink which can be used according to the invention and is based on platelet-shaped metal pigments for producing a reflection layer available by printing is preferably based on the metal pigment described in WO 2005/051675 A2 (see, for example, the description on page 11, line 10, to page 12, penultimate paragraph).
- the pigments are based on a metal, preferably from the
- the metal is particularly preferably aluminum, the average particle diameter preferably being in a range from 2 to 50 ⁇ m, more preferably in a range from 5 to 15 ⁇ m, measured with a Coulter LS130 laser diffraction granulometer.
- Ink allows the provision of a "silver" mirror layer
- the metal pigment compositions e.g., yellow
- the metal pigment compositions may be colored.
- Viewing angles have a different hue, in particular have an interference layer structure, which typically has a reflection layer, a partially transparent layer or absorber layer and one or more intervening dielectric spacer layers.
- an interference layer structure typically has a reflection layer, a partially transparent layer or absorber layer and one or more intervening dielectric spacer layers.
- Dielectric spacer layers 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.
- OVI ® variable ink optically
- SICPA variable ink optically
- a special case is magnetically orientable OVI pigments, which are aligned during or after the printing of the substrate by means of a magnetic field in a preferred direction.
- Subgroup of interference layers or interference layer pigments are cholesteric or other liquid crystals which may also be used. These are, for example, as liquid-crystalline
- Viewing angles take on a different hue may further be based on the effect pigment compositions described in WO 2011/064162 A2 with color shift effect.
- 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.
- Transition metal is preferably Ag.
- the aspect ratio i.e.
- Ratio of the longest dimension from end-to-end with respect to Thickness is preferably at least 1.5, in particular in a range from 1.5 to 300.
- the ratio of the binder to metal pigment is
- Pigment / binder ratio the color in reflection of the print layer in transmission and the color when viewed in reflection (eg blue in transmission and silver, gold, bronze, copper or violet in reflection, beyond violet, magenta, pink, Green or brown in transmission and different colors in reflection, depending on the choice of pigment / binder ratio). Colors with
- 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
- Example 8 a color with silver / opaque color change.
- additional tactile substrate embossments may be generated, e.g. in intaglio printing.
- both the tactile substrate embossings and the relief structures forming a micromirror arrangement or a diffractive structure can be arranged in one
- the invention (i.e., the fourth aspect in the above summary of the invention) discloses a method of manufacturing a value document substrate or a document of value security
- the method comprising:
- microoptical structures are produced, wherein the step of embossing the first substrate region and the step of embossing the second substrate region are carried out in one operation.
- micro-optical the micro-optical
- a micro-optical structure e.g. a
- An embossing lacquer is applied to the substrate at the location of the later microoptical structure (for example of the later hologram).
- the embossing lacquer may e.g. be thermoplastic and / or UV-curable and continue to be already pigmented. Preferably, they are 100% systems, i. solvent-free and non-aqueous formulations.
- Oil-based systems are particularly possible with paper substrates.
- security elements in particular security films
- the embossing lacquer should preferably
- embossing lacquer does not necessarily have to be colorless.
- any Suitable printing method Curing takes place directly in the course of embossing, preferably through the substrate. With sufficiently high viscosity, as well as in a thermoplastic system, the curing can also take place immediately after embossing. Thereafter, at least the micro-optic region is overprinted with an effect-pigmented ink in which the pigments cause mirror reflection and conform to the holographic structures.
- an effect-pigmented ink in which the pigments cause mirror reflection and conform to the holographic structures.
- the intaglio printing plate already carries the micro-optical information and is applied in these areas with the embossing lacquer.
- the embossing lacquer may also be an oil-based system.
- the embossing lacquer should be transparent, but not necessarily colorless. It is conceivable in this case, a
- Effect-pigmented printing ink in which the pigments ideally cause a specular reflection.
- These may be silver, copper, nanoparticles or thin aluminum plates.
- Leafing pigments as well as non-leafing pigments and orientation enforced by the embossment create the micro-optic feature.
- the curing can be carried out directly in the course of embossing, preferably through the substrate or at sufficiently high viscosity, as well as in a thermoplastic system also immediately after embossing. If necessary, in
- effect-pigmented printing ink in which the pigments have a Mirror reflection and adapt to the holographic structures, overprinted.
- the intaglio printing plate may preferably carry further colored colors, i. be colored, wherein the areas that are to reflect the holographic structures are not coloring. An overlap is due to the higher counterfeit security through the perfect
- a preferred steel printing cylinder according to a variant A comprises one or more regions with a micro-optical embossing and one or more regions for tactile substrate embossings (which are coloring and / or non-fluorescent).
- the area with a micro-optical embossing is particularly suitable for the production of lens structures,
- the substrate has an embossing lacquer, for example a thermoplastic, which may be present partially or optionally over the entire surface.
- the embossing lacquer is a transparent, UV-curable system, which is cured at the moment of embossing or immediately after embossing. An exposure can take place through the substrate.
- the embossing lacquer may already be provided with metal pigments or subsequently overprinted with a metal-pigmented printing ink.
- a leafing UV-curable system should be particularly advantageous in the case of a lacquer already provided with metal pigments, since the leafing pigments float above and the embossing can thus be optimally shaped into the pigments.
- Providing the substrate with a primer layer, optionally with a UV primer is optional.
- Preferred Variant A with Leafing Ink is optional.
- a preferred steel printing cylinder according to a variant A with leafing ink comprises one or more areas with a micro-optical embossing and one or more areas for tactile substrate embossings (which are giving and / or non-imparting).
- the area with a microoptical imprint is particularly for the production of
- the substrate has an embossing lacquer, for example a thermoplastic, which may be present partially or optionally over the entire surface, and has leafing pigments.
- embossing lacquer for example a thermoplastic, which may be present partially or optionally over the entire surface, and has leafing pigments.
- a leafing UV-curable system should be particularly advantageous in the case of a lacquer already provided with metal pigments, since the leafing pigments float on top and the embossing can thus be optimally shaped into the flexible pigments.
- the paint is not yet cured. An exposure is preferably carried out
- a preferred steel impression cylinder according to a variant B comprises one or more regions with a microoptical embossing and one or more regions for tactile substrate embossings (which are coloring and / or non-fluorescent).
- the area with a micro-optical embossing is particularly suitable for the production of lens structures,
- Microoptical imprinted areas have an embossing lacquer, e.g. a thermoplastic, on.
- the embossing lacquer may optionally additionally be present in the areas formed in the steel pressure cylinder for tactile substrate embossing.
- the embossing lacquer is a transparent, UV-curable system, which is cured at the moment of embossing or immediately after embossing.
- the embossing lacquer may furthermore be oil-based or dual-cure.
- the embossing lacquer is steel-pressure-processable. An exposure can take place through the substrate.
- the embossing lacquer may already be provided with metal pigments or subsequently with a metal-pigmented printing ink to be overprinted. Providing the substrate with a primer layer, optionally with a UV primer, is optional.
- a preferred steel printing cylinder according to a variant "A + B" comprises one or more areas with a micro-optical embossing and one or more areas for tactile substrate embossings (which are coloring and / or non-eminating.)
- the area with a micro-optical embossing is in particular for the generation of lens structures,
- the substrate has an embossing lacquer, e.g. a thermoplastic, which may be present partially or optionally over the entire surface.
- embossing lacquer e.g. a thermoplastic
- Steel printing cylinder present areas with micro-optical embossing an embossing lacquer, e.g. a thermoplastic, on.
- the embossing lacquer may optionally additionally be present in the areas formed in the steel pressure cylinder for tactile substrate embossing.
- the embossing lacquer present on the substrate, e.g. one
- Thermoplastic may be present pre-gelatinized and optionally with
- the substrate is partially preimpregnated in the area of the microoptical structures and higher layer thicknesses can be realized.
- the embossing lacquer is a transparent, UV-curable system, which is cured at the moment of embossing or immediately after embossing. An exposure can in this case through the substrate respectively.
- the embossing lacquer may already be provided with metal pigments or subsequently overprinted with a metal-pigmented printing ink. It would be particularly advantageous to use a leafing UV-curable system in the case of a lacquer already provided with metal pigments, since the leafing pigments float on top and the embossing can thus be optimally shaped into the pigments.
- Providing the substrate with a primer layer, optionally with a UV primer is optional.
- the "A + B” variant corresponds to a two-layer embossing lacquer system
- the first lacquer layer is optimized for the substrate, is applied to the substrate and can already be hardened at the moment of embossing or
- Preimpregnated structures for the following lacquer layer Preimpregnated structures for the following lacquer layer.
- the paint on the embossing tool in particular the intaglio printing plate, can now be processed in the so-called casting process. He can not beat away now and anchors perfectly with the first paint.
- the variant "A + B" allows higher line speeds due to the higher optical quality (in particular a lower bubble formation) Furthermore, deeper micro-optical structures can be realized.
- Suitable non-leafing pigments are, for example, PVD aluminum platelets whose surface is untreated or polar.
- the polar or oxidized pigment surface is reversed with long-chain alkyl phosphonic acids or mono- / diphosphoric esters and long-chain alkoxysilanes, ie made non-polar (somewhat comparable to the action of surfactants, the polar part anchored on the pigment surface either covalently or via acid -Base interaction). Due to the perfect platelet structure, the pigments can optimally orient (ie align the mirrors).
- Leafing pigments are preferred as thin as possible, non-leafing pigments are preferably rather thicker to choose. In general, the pigments have a D50 of 10 ⁇ , the thickness is in the nanometer range.
- the micro-optical embossing can be overprinted after application with a solvent-based ink preferably with non-leafing pigments
- a solvent-based ink preferably with non-leafing pigments
- non-leafing pigments it is preferred to use non-leafing pigments if the embossing lacquer itself Since the mobility in the embossing lacquer is insufficient or scarcely possible after application, direct pigmentation makes it advisable to resort to metal nanoparticles.
- the embossing lacquer component already applied to the substrate can be finished with perfect non-leafing pigments or perfect leafing pigments.
- Embossing tool with a very high pigmented embossing lacquer especially non-leafing
- ie lacquer with a very high pigment content so that virtually no-leafing and leafing can be distinguished.
- Figures 1 to 3 an example of the production of a
- Figure 8 is a schematic representation of a banknote with a security element according to the invention.
- FIG. 9 is a schematic representation of another banknote with a security element according to the invention.
- FIG. 8 shows a schematic representation of a banknote 14 with a transparent one
- Window region 16 (shown in dashed lines), which is provided with a security element 15 according to the invention in the form of a patch or label.
- the banknote 14 may for example be based on a (eg transparent) plastic substrate, wherein the banknote in the area 16 is neither on the front nor on the back has a printing ink, so that the area 16 is visible to the viewer as a transparent window area.
- the banknote 14 may alternatively be based on a foil / paper / foil composite substrate, the central paper layer having a recess (in particular filled with transparent adhesive or filler) in the region 16.
- Foil / paper / foil composite substrates are known from WO 2004/028825 A2.
- the banknote 14 is based on a
- Paper / film / paper composite substrate with the outer paper layers each having a recess in region 16.
- the banknote 14 is based on a
- Paper substrate which has a continuous recess in the area 16.
- the continuous recess is on at least one side of the
- Paper substrate covered by a transparent film see, for example, WO 2011/015622 AI.
- the security element 15 shown in FIG. 8 contains a central, surface-tilting motif 17 formed by a micromirror arrangement, which is surrounded by a motif 16 formed by a hologram.
- Figure 9 shows a schematic representation of another, on a
- the strip 19 has in the present example a width of 8 mm and has a farbkippendes by a Micromirror arrangement formed motif 21 and formed by a hologram motif 20.
- FIG. 7 shows the security element 19 shown in FIG. 9 in a cross-sectional view along the dashed line A-A '.
- a carrier 6 is in the form of a (e.g., transparent) plastic film, e.g. a PET film, provided with an embossable lacquer 7.
- the embossable lacquer 7 is e.g. a UV-curing lacquer or a
- thermoplastic paint According to FIG. 5, the surface of the embossable lacquer 7 is provided by embossing in the partial area 8 with a relief structure formed by a microstructure and in the partial area 9 with a relief structure formed by a nanostructure. According to FIG. 6, the embossing lacquer 7 in the subregion 9 is printed with the printing ink known from WO 2005/051675 A2.
- the printing ink is based on platelet-shaped metal pigments (in particular Al pigments) and leads to the production of a reflection layer 11, in the present case a "silver" mirror layer.
- embossing lacquer 7 in subarea 8 is printed with effect pigments which assume a different color shade depending on the viewing angle, in the present example OVI® ink.
- the printing color layer 10 is obtained with color shift effect.
- the layer structure obtained with a eg.
- FIGS. 4 to 7 The production of a security element according to the invention in the form of a strip has been described in FIGS. 4 to 7 (see FIGS.
- Security strip 19 has a farbkippendes by a
- Micromirror arrangement formed motif 21 and formed by a hologram motif 20 The motif 21 formed by a micromirror arrangement in this case corresponds to the region designated by the reference numeral 10 in FIG.
- the motif 20 formed by a hologram corresponds to the area denoted by the reference numeral 11 in FIG.
- the security element shown in Figure 7 may be in the form of a patch (see, for example, the patch indicated in Figure 8 with reference numeral 15).
- the embossing step takes place first, after which the embossed regions are printed with pigments (see FIG. 6).
- the step of printing with pigments takes place first, followed by the embossing step.
- Figures 1 to 3 describe an example of the production of a
- a security paper suitable for the production of banknotes in this case a security paper suitable for the production of banknotes.
- the provision of a paper substrate 1 takes place in a first step.
- the embossed paper substrate 1 in the partial area 3 is printed with the printing ink known from WO 2005/051675 A2.
- Printing ink is based on platelet-shaped metal pigments (in particular Al pigments) and leads to the production of a reflection layer 5, in the present case a "silver" mirror layer.
- the color-shifting layer 4 is obtained by printing technology
- the step of embossing the paper substrate takes place (see Figure 2), then the embossed Areas of the paper substrate printed with pigments (see Figure 3.)
- the first step is the printing of the Paper substrate with pigments and then the step of embossing paper substrate.
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- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Methods (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016007064.1A DE102016007064A1 (de) | 2016-06-08 | 2016-06-08 | Sicherheitselement, Wertdokumentsubstrat, mit demselben ausgestattetes Wertdokument und Herstellungsverfahren |
PCT/EP2017/000652 WO2017211450A1 (fr) | 2016-06-08 | 2017-06-06 | Élément de sécurité, substrat de document de valeur, document de valeur équipé de ce dernier et procédé de fabrication |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3468811A1 true EP3468811A1 (fr) | 2019-04-17 |
EP3468811B1 EP3468811B1 (fr) | 2022-10-12 |
Family
ID=59021447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17728445.2A Active EP3468811B1 (fr) | 2016-06-08 | 2017-06-06 | Élément de sécurité, substrat de document de valeur, document de valeur équipé de ce dernier et procédé de fabrication |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3468811B1 (fr) |
AU (1) | AU2017276507B9 (fr) |
DE (1) | DE102016007064A1 (fr) |
WO (1) | WO2017211450A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2020228711A1 (en) | 2019-02-28 | 2021-10-21 | Sicpa Holding Sa | Method for authenticating a magnetically induced mark with a portable device |
CN111746171B (zh) * | 2019-03-29 | 2021-06-15 | 中钞特种防伪科技有限公司 | 光学防伪元件及其制作方法 |
EP3766702A1 (fr) * | 2019-07-15 | 2021-01-20 | Giesecke+Devrient Currency Technology GmbH | Élément de sécurité et son procédé de fabrication |
DE102020007028A1 (de) | 2020-11-17 | 2022-05-19 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement, mit demselben ausgestattetes Wertdokument und Herstellungsverfahren |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10243653A1 (de) | 2002-09-19 | 2004-04-01 | Giesecke & Devrient Gmbh | Sicherheitspapier |
GB0326576D0 (en) | 2003-11-14 | 2003-12-17 | Printetch Ltd | Printing composition |
EP2153988B1 (fr) | 2004-12-23 | 2012-04-18 | Landqart | Montage de plusieurs couches comme substrat d'impression et son procédé de fabrication |
BRPI0719110A2 (pt) * | 2006-11-21 | 2013-12-10 | Ciba Holding Inc | Aparelho e método para fabricação de um produto de segurança |
DE102007061828A1 (de) | 2007-12-20 | 2009-06-25 | Giesecke & Devrient Gmbh | Sicherheitselement und Verfahren zu seiner Herstellung |
JP5705129B2 (ja) | 2008-12-19 | 2015-04-22 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 薄アルミニウムフレーク |
DE102009036314A1 (de) | 2009-08-06 | 2011-02-10 | Giesecke & Devrient Gmbh | Verfahren zur Herstellung eines Sicherheitselements und nach dem Verfahren erhältliches Sicherheitselement |
EP2504400B1 (fr) | 2009-11-27 | 2017-09-27 | Basf Se | Compositions de revêtement |
DE102009056934A1 (de) * | 2009-12-04 | 2011-06-09 | Giesecke & Devrient Gmbh | Sicherheitselement, Wertdokument mit einem solchen Sicherheitselement sowie Herstellungsverfahren eines Sicherheitselementes |
FR2953965B1 (fr) * | 2009-12-14 | 2011-11-25 | Arjowiggins Security | Element de securite comportant une structure optique |
KR20150027205A (ko) | 2012-06-14 | 2015-03-11 | 바스프 에스이 | 보안 요소 및 홀로그램의 제조 방법 |
DE102012020257A1 (de) | 2012-10-16 | 2014-04-17 | Giesecke & Devrient Gmbh | Optisch variables Flächenmuster |
-
2016
- 2016-06-08 DE DE102016007064.1A patent/DE102016007064A1/de not_active Withdrawn
-
2017
- 2017-06-06 WO PCT/EP2017/000652 patent/WO2017211450A1/fr unknown
- 2017-06-06 AU AU2017276507A patent/AU2017276507B9/en active Active
- 2017-06-06 EP EP17728445.2A patent/EP3468811B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
EP3468811B1 (fr) | 2022-10-12 |
DE102016007064A1 (de) | 2017-12-14 |
AU2017276507A1 (en) | 2019-01-17 |
WO2017211450A1 (fr) | 2017-12-14 |
AU2017276507B9 (en) | 2022-02-24 |
AU2017276507B2 (en) | 2021-10-14 |
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