EP2393668A1 - Sicherheitsmerkmal für kunststoffbasierendes wert- oder sicherheitsdokument - Google Patents
Sicherheitsmerkmal für kunststoffbasierendes wert- oder sicherheitsdokumentInfo
- Publication number
- EP2393668A1 EP2393668A1 EP10704330A EP10704330A EP2393668A1 EP 2393668 A1 EP2393668 A1 EP 2393668A1 EP 10704330 A EP10704330 A EP 10704330A EP 10704330 A EP10704330 A EP 10704330A EP 2393668 A1 EP2393668 A1 EP 2393668A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- security feature
- lacquer layer
- layer
- lacquer
- structuring
- 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
- 229920003023 plastic Polymers 0.000 title description 6
- 239000004033 plastic Substances 0.000 title description 6
- 239000000463 material Substances 0.000 claims abstract description 94
- 238000000034 method Methods 0.000 claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 claims abstract description 35
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 7
- 239000004922 lacquer Substances 0.000 claims description 155
- -1 polyethylene terephthalate Polymers 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 11
- 238000004049 embossing Methods 0.000 claims description 10
- 238000007639 printing Methods 0.000 claims description 9
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 5
- 239000000123 paper Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004417 polycarbonate Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000059 patterning Methods 0.000 claims description 3
- 238000004382 potting Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- 238000004020 luminiscence type Methods 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003973 paint Substances 0.000 description 11
- 230000000007 visual effect Effects 0.000 description 9
- 238000007667 floating Methods 0.000 description 5
- 239000010408 film Substances 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 239000013039 cover film Substances 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007761 roller coating Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009210 therapy by ultrasound Methods 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
- B42D25/29—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
- B42D25/351—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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special 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
-
- 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
- B42D25/44—Marking by removal of material using mechanical means, e.g. engraving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/43—Marking by removal of material
- B42D25/445—Marking by removal of material using chemical means, e.g. etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
Definitions
- the invention relates to a method for producing a visually perceptible without technical aids security feature, a visually without technical aids visually perceptible security feature, a method for producing a document with such a security feature and a document with such a security feature.
- Value or security documents often consist of a plastic body, which is produced by means of joining, in particular by means of lamination, from a plurality of plastic layers. Such value or security documents have a long service life and are better protected against simple paper-based documents due to the more complex manufacturing techniques.
- security features are integrated in the document body or subsequently applied to it. In this case, it is particularly preferred if the security feature is located in the same position as the personalized or individualized data, since in case of manipulation or exchange of the personalized or individualized data, the security feature is damaged or destroyed and thus the manipulation is obvious.
- Personal data is here and below understood as personal data, for example name or date of birth of a document holder, and under individualized data document-specific data, for example a serial number.
- security features are often used which have a view dependent on the perspective. Such security features are difficult and not adjustable with commercially available copying systems. It is important here that with simple consideration of the value or security document, an untrained observer can determine the presence and authenticity of the security feature even without technical aids. For this purpose, for example, optically variable colors are used. However, these are only available in a limited number of variations and, in particular, can only be used to a limited extent for securing via personalized or individualized data. Therefore, diffraction patterns are often introduced or replaced in value or security documents the personalization of document blanks subsequently applied to this.
- the advantage of holographic security features is the introduction of complex information, for example a complex representation, such as coats of arms or logos.
- a spatial, diffraction-optically effective structure is known, which is produced by a provided with a reflection-enhancing coating surface of a paint or polymer layer.
- the thickness of such a security element is only about 3 to 10 microns in total.
- reflection-enhancing coatings metals, but also dielectric layers, for example TiO 2 , can be used.
- the dielectric layers must have a refractive index which is sufficiently different from the lacquer in order to have a reflection-enhancing effect.
- Such a security element Disadvantage of such a security element is that structures which are effective diffraction optics must be manufactured with a precision below the order of the wavelength, which is why correspondingly precise and complex procedures have to be used for the step of generating the spatial, diffraction-optically effective layer. Furthermore, suitable illumination from a specific orientation is necessary for viewing diffraction-optically effective structures, which makes the security feature more difficult to verify than, for example, an optically variable color.
- lens structures are often used to achieve tilt image effects.
- a laser-described tilting image is known.
- the advantage of such structures is the extremely simple verification, which does not require any special lighting conditions for the reconstruction.
- the lens structure and introduced information spatially must be very closely matched, so that manipulation is extremely difficult.
- WO 2008/098753 A1 discloses a high-index embossing lacquer which is suitable for producing microoptical arrangements as a security element in value documents.
- the embossing lacquer according to the invention has at least one organic compound which has at least one polarizable element, so that the refractive index is greater than 1.5.
- the refractive index of the embossing lacquer may be increased by the addition of nanoparticles.
- the embossing lacquer is used for the production of security elements, which are equipped in security features in the form of microstructures.
- an identification card which is composed of several plastic layers, wherein at least two adjoining plastic layers have a different transparency and at least one of these layers has recesses, which are at least partially filled by the material of the adjacent layer.
- the thicknesses of the different transparent layers vary, so that in reflected light a light-shadow effect results, which is reversed in transmitted light.
- the deforming layer may be provided with a print that plastically deforms in dependence on the depressions, whereby a spatial impression of the printed image can be obtained.
- the identification card can have a surface relief at the locations of the depressions through them, so that the pattern can be felt as a surface relief.
- Security features of the type described above can not be used with simple means at any point in the production and / or personalization process in order to protect valuable or security documents, in particular the personalized or individualized information incorporated in these documents, against counterfeiting and adulteration.
- This security feature should be able to be introduced at any point in the production and / or personalization process of the value or security document in a simple and cost-effective manner in the document, in particular for the protection of personalized or individualized information.
- the object is achieved by a security feature is created, which is visually perceptible without technical aids.
- the safety feature is formed from at least two material layers, the second material layer being a first lacquer layer.
- This first lacquer layer covers the first material layer at least in partial areas. This covering may extend over the entire surface over the first material layer, over a partial region of the first material layer or over at least two separate partial regions of the first material layer. The coverage may also be a dot pattern, for example.
- the first lacquer layer has a refractive index difference of at least 0.1 relative to the first material layer.
- the first lacquer layer has a structuring or represents a structuring.
- the structuring of the first lacquer layer is given by a variation of the thickness of the lacquer layer. If the first lacquer layer extends over a plurality of partial regions of the first material layer, then the spatial arrangement of the lacquer layer forms a structuring.
- the structuring is such that electromagnetic radiation which passes from the first material layer into the first lacquer layer is refracted.
- the structuring according to the invention has a structure size parallel to the surface (to the main plane of the first material layer) of at least 10 .mu.m.
- the spot size is at least 10 ⁇ m, whereby a point here means a coherent, two-dimensionally closed partial area of the first lacquer layer. Under the structure size parallel to the surface of the shortest occurring in a structure distance between two opposite edges of the structure is understood by their center of gravity. If the structuring is given by a variation of the thickness of the first lacquer layer, then regions with approximately the same thickness have a lateral extent of at least 10 ⁇ m.
- the structuring furthermore has, according to the invention, a structure size perpendicular to the surface of at least 5 ⁇ m, preferably between 5 ⁇ m and 10 ⁇ m.
- the dot height is at least 5 ⁇ m, preferably between 5 ⁇ m and 10 ⁇ m. If the structuring is given by a variation of the thickness of the first lacquer layer, regions with different thicknesses have a thickness difference of at least 5 ⁇ m, preferably between 5 ⁇ m and 10 ⁇ m.
- the advantages of the security feature according to the invention result from the simple production and the simple verification. Since the security feature according to the invention is visually perceptible due to refraction of electromagnetic radiation, no special lighting conditions are necessary for its observation, as are necessary, for example, in the observation of holograms, which are visually perceptible due to diffraction of electromagnetic radiation.
- the production of a security feature according to the invention is simpler and more flexible than that of the above-mentioned
- the security features since neither the high precision, which is required for a diffraction structure, nor the relative positioning accuracy, which is required for micro lens systems, is necessary.
- By producing the security feature by applying a lacquer layer integration of the security feature according to the invention is possible both in an inner layer of a document during production and on the surface of a finished document blank, in particular for securing personalization data.
- the security feature has a structuring parallel to the surface with a structure size of at least 100 ⁇ m.
- the security feature has a structuring parallel to the surface with a feature size of at least 1 mm.
- the security feature additionally has a second lacquer layer, which is arranged above the first lacquer layer.
- the advantage of this embodiment is the protection of the structuring of the first lacquer layer against mechanical stress, in particular protection against abrasion.
- the second lacquer layer may have a difference in refractive index of at least 0.1 relative to the first lacquer layer.
- the second lacquer layer has the same or a similar refractive index as the first material layer. Under similar, a refractive index difference of less than 0.02 is considered.
- the structuring of the first lacquer layer perpendicular to the surface of the security feature is at least partially, preferably completely, compensated by the second lacquer layer so that the security feature is hardly, preferably not, palpable.
- the second lacquer layer has a layer thickness which is less than the structure size of the first lacquer layer.
- the structuring of the first lacquer layer of the security feature remains palpable. This embodiment is preferred if even such a thin second lacquer layer significantly improves the performance properties of the security feature, in particular the abrasion resistance.
- the second lacquer layer has abrasion-resistant properties.
- the abrasion-resistant properties are preferably produced by the addition of ZnO and / or SiO 2 .
- the first material layer and the first lacquer layer are transparent.
- the first material layer and the first and second resist layers are transparent.
- the first lacquer layer is translucent and the second lacquer layer is transparent.
- the first material layer is opaque or translucent, the first lacquer layer and the second lacquer layer are transparent.
- the refractive index of the first lacquer layer is adjusted by the addition of at least one high-index additive by at least 0.1 higher than the refractive index of the first material layer.
- At least one of the high refractive index additives is selected from the group comprising glass, feldspar, TiO 2 , ZrO 2 and diamond.
- a high-index additive is present nokristallin, ie with a particle size less than 100 nm, more preferably with a particle size less than 25 nm.
- the first material layer consists of a material selected from the group comprising polycarbonate (PC), polyethylene terephthalate (PET) and its derivatives, polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), thermoplastic Elastomers (TPE), paper and glass and mixtures of these materials.
- the first material layer may have a thickness of at least 50 ⁇ m.
- the first material layer is a document blank.
- a document blank may be a multi-layer composite, for example a multi-layer laminate in which layers of identical or different materials may be present. If it is a document blank made of different materials, the refractive index of the first material layer is considered to be the refractive index of an uppermost transparent layer.
- the topmost transparent layer may be a lacquer layer.
- at least the first lacquer layer contains at least one substance which can be excited to luminesce.
- a document according to the invention has at least one security feature visually perceptible without technical aids according to the present invention. Furthermore, the document may have one or more other security features. Examples include guilloche printing, iris printing, optically variable color, laser engraving, luminescence color, hologram, electronic components, for example RF chip and / or display, as well as metameric colors.
- the document may be a value or security document, passport, identity card, birth certificate, visa, driver's license, credit card, bank card, company ID, membership card, vehicle registration document, banknote, check , a stock, a stamp or a tax symbol.
- the document may be composed of polycarbonate (PC), polyethylene terephthalate (PET) and its derivatives, polyvinylchloride (PVC), polypropylene (PP), polyethylenes (PE), thermoplastic elastomers (TPE), paper and blends of these materials ,
- PC polycarbonate
- PET polyethylene terephthalate
- PVC polyvinylchloride
- PP polypropylene
- PE polyethylenes
- TPE thermoplastic elastomers
- the security feature which can be visually perceived without technical aids is arranged on the surface of the document.
- the security feature is applied to a document blank, preferably after personalization.
- a further layer of material may be disposed over the security feature.
- the further material layer may be a film of a photopolymer into which a volume hologram is or may be imprinted, or an abrasion protection film.
- the security feature visually perceptible without technical aids is arranged in the interior of the document.
- the security feature can be applied to a layer, for example a film, which is connected to further layers, for example by means of lamination, to form a document.
- the advantage of this embodiment is that information provided by the security feature in the document, for example personalization data introduced by means of laser personalization, can be protected if, for example, the security feature is inserted between two laser-capable films.
- the method according to the invention for producing a security feature visually perceivable without technical aids comprises the following steps: a) provision of a first material layer b) application of a second material layer formed by a first lacquer layer at least in partial regions of the first material layer, the first lacquer layer having a refractive index, c) generating a structuring of the first lacquer layer, wherein the structuring has a structure size parallel to the surface of the security feature of at least 10 .mu.m and perpendicular to the surface of the security feature of at least 5 .mu.m and wherein the security feature so produced is visually perceptible due to refraction of electromagnetic radiation.
- the first material layer may be, for example, a plastic film having a thickness between 25 ⁇ m and 300 ⁇ m made of polycarbonate (PC), polyethylene terephthalate (PET) and its derivatives, polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), thermoplastic elastomers (TPE), paper, as well as mixtures of these materials or act around a document blank.
- PC polycarbonate
- PET polyethylene terephthalate
- PVC polyvinyl chloride
- PP polypropylene
- PE polyethylene
- TPE thermoplastic elastomers
- a lacquer is applied to the first material layer. Curing of the lacquer produces the first lacquer layer, which has a difference in refractive index of at least 0.1 relative to the first material layer.
- a structuring of the first lacquer layer is produced, which has a structure size parallel to the surface of the security feature of at least 10 ⁇ m and perpendicular to the surface of the security feature of at least 5 ⁇ m.
- This structuring can be carried out by applying the lacquer in method step b) in a structured manner, applying the lacquer unstructured in method step b) and patterning it in a subsequent step, or by forming the first material layer in a process between steps a) and b ), so that the first lacquer layer assumes the structuring of the first material layer during the application.
- the application of the first lacquer layer takes place in the method step b) by printing in high, flat, gravure, through or digital printing on the first material layer.
- the first lacquer layer is applied in method step b) by means of potting, spray coating or roller coating onto the first material layer.
- the printing-technical application of the first lacquer layer takes place with simultaneous production of the structuring according to method step c).
- Particularly suitable for the production of line patterns is intaglio printing.
- Particularly suitable for the production of individualized structuring is ink-jet printing.
- the first material layer provided in method step a) is first structured by means of reshaping.
- all methods of embossing and / or ultrasound treatment of the first material layer may be considered as the method of forming.
- the first lacquer layer is applied, which is structured by structuring the first material layer according to method step c).
- the first lacquer layer in method step b) can first be applied unstructured.
- the first lacquer layer is patterned by means of photolithographic techniques.
- a lacquer can be applied, which is cured by means of UV light. The curing can be carried out by means of targeted exposure to UV light.
- the uncured paint is removed, for example, washed off with a solvent.
- a varnish is first applied and cured. The resulting lacquer layer is exposed so that the lacquer can be decomposed and washed away at the exposed areas.
- the first lacquer layer is cured during method step c).
- a paint is applied unstructured.
- the structuring is carried out according to method step c), for example by impressing an embossing stamp. Since the paint is not cured, only a very low wear on the stamping tool occurs. For example, while the die is on the lacquer layer, it is thermally cured.
- a cover film can be applied to the first lacquer layer, which has a structured surface. The structuring of the lacquer layer is produced by molding the structured surface of the cover foil. After application of the cover film, the paint layer is cured and then removed the cover sheet.
- a second lacquer layer is applied to the first lacquer layer.
- Application of the second lacquer layer can be done by printing in high, flat, gravure, through or digital printing, by means of potting, spray coating or roller coating on the first coat of paint.
- the application of the two lacquer layers comprises the following method steps: u) applying a first lacquer used to form the first lacquer layer, v) partially curing the first lacquer, w) applying one to form the second lacquer layer used second varnish, x) simultaneous complete curing of both varnishes.
- the first coating has two curing steps, for example by polyaddition and by radical polymerization.
- the first hardening step causes the first lacquer to become sufficiently firm so that the introduced structure is no longer destroyed by the following steps.
- the second paint has a curing step that is identical to the second curing step of the first paint. This leads to a chemical reaction between the two paints in process step x), so that both paint coats are inseparably bonded together.
- a second lacquer layer is applied to the first lacquer layer before the first lacquer layer has hardened. Both layers of paint are then cured in a common curing step.
- Process step A) comprises process steps a), b) and c) for producing the security feature according to the invention.
- further material layers are provided from which the document is to be constructed. These can consist of the same material as the first material layer, but they can also consist of different materials.
- one of the further material layers may be an inlay made of a thermoplastic elastomer, in particular for embedding electronic components.
- the first and the further material layers are arranged one above the other according to the layer structure of the document in method step C).
- the first material layer is preferably arranged in such a way that the security feature produced in method step A) is arranged between two material layers.
- the layers are permanently connected to one another, for example by means of lamination.
- Fig. 1 a security feature in section in a schematic representation
- Fig. 2 another security feature in section in a schematic representation
- FIG. 3 shows a further security feature in section in a schematic illustration with a second lacquer layer
- FIG. 4 shows a further security feature in section in a schematic illustration with a first material layer having a structuring
- FIG. 5 shows a further security feature in section in a schematic representation with a second lacquer layer which only partially compensates for the structuring of the first lacquer layer
- 6 shows a further security feature in section in a schematic representation
- 7 shows a further security feature in section in a schematic illustration with a second lacquer layer which has a refractive index which is the same as the first material layer
- FIG 8 shows a further security feature in section in a schematic representation with a document blank as the first material layer.
- FIG. 1 shows a security feature 10, which is formed from a first material layer 11 and a first lacquer layer 12.
- the first lacquer layer 12 has a structuring which has a feature size parallel 15 and perpendicular 16 to the surface of the security feature 10, that is, to a plane that is coplanar with the surface of the first material layer.
- the structure size 15 parallel to the surface is at least 10 microns.
- the structure size 16 perpendicular to the surface is at least 5 microns.
- the first resist layer 12 forms a dot pattern and may be formed by, for example, ink jet printing. Due to the different refractive indices of the first material layer 11 and the first lacquer layer 12, the visual impression of floating drops on the first material layer 11 results.
- FIG. 2 shows a further security feature 10, in which a first lacquer layer 12 is arranged on the first material layer 11.
- the first lacquer layer 12 completely covers the first material layer 11 at least in the area shown.
- the first lacquer layer is structured on the surface and has a feature size parallel 15 and perpendicular 16 to the surface of the security feature 10, which are 5 microns perpendicular to the surface and 10 microns parallel to the surface.
- the lacquer layer can also be significantly thicker.
- Such a security feature can be produced, for example, by applying a uniform lacquer layer and embossing a structuring during the curing of the first lacquer layer. Due to the different refractive indices of the first material layer 11 and the first lacquer layer 12, the visual impression of floating drops on the first material layer 11 results.
- a further security feature 10 is shown, in which over the first
- Material layer 11 is a first resist layer 12 and over the first resist layer 12, a second resist layer 13 is arranged.
- the second lacquer layer 13 has abrasion-resistant properties and completely compensates for the structuring of the first lacquer layer 12, so that the security feature 10 on the surface of a document is particularly well protected against wear.
- a security feature 10 can also be integrated into the interior of a document without abrasion-resistant properties. In the case of lamination, the pressure due to the smooth surface would be uniform over the safety unit 10 so that the patterning of the first lacquer layer 12 would not be destroyed.
- the refractive index of the first resist layer 12 may, for example, be at least 0.1 greater than the refractive index of the first material layer 11 and at least 0.1 greater than the refractive index of the second resist layer 13. The visual impression of the substance floating in the volume results Drops.
- FIG. 4 shows a further security feature 10, in which structuring has been introduced into the first material layer 11, for example by means of embossing, milling or ultrasound.
- the first lacquer layer 12 can be applied uniformly, the structuring of the first lacquer layer 12 results from the structuring of the first material layer 11.
- the visual impression of the volume of the ink results due to the difference between the refractive indices of the first material layer 11 and the first lacquer layer 12 Materials floating drops.
- a further security feature 10 is shown, in which over the first
- Lacquer layer 12 a second lacquer layer 13 is arranged, which does not completely compensate for the structuring of the first lacquer layer 12. As a result, the structuring remains palpable. If the security feature 10 is arranged on the surface of a document, the structuring can not only be visually observed but also felt without technical aids. In addition to the visual impression, which is similar to that in Fig. 3, there is a tactile impression that is correlated with the visual impression. In places where an apparent drop can be perceived, a survey is noticeable.
- FIG. 6 shows a further security feature 10, in which the structuring of the first lacquer layer 12 has different structure sizes parallel and perpendicular to the surface of the security feature 10.
- the smallest structure size is at least 5 ⁇ m perpendicular to the surface.
- the largest structure size perpendicular to the surface is at most 10 ⁇ m.
- FIG. 7 shows a further security feature 10, in which a second lacquer layer 13 is arranged above the first lacquer layer 12, wherein the second lacquer layer 13 has the same refractive index as the first material layer 11.
- the refractive index of the first lacquer layer 12 differs from that of FIG Refractive index of the first material layer 11 and the second resist layer 13 by at least 0.1. This creates the visual impression that subregions of the first lacquer layer 12 float like drops in the volume of the security feature. For example, overlapping structures can be represented.
- FIG. 8 shows a document 20 in which, on a first material layer 11, which in this case represents a document blank, a first lacquer layer 12 and a second lacquer layer 13, in particular with abrasion-resistant properties, are arranged according to the invention.
- a first material layer 11 which in this case represents a document blank
- a first lacquer layer 12 and a second lacquer layer 13 in particular with abrasion-resistant properties, are arranged according to the invention.
- the refractive index difference between the first lacquer layer 12 and the first material layer 11 and the second lacquer layer 13 produces the visual impression of drops floating in the volume of the document.
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Abstract
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Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009007779.0A DE102009007779C5 (de) | 2009-02-04 | 2009-02-04 | Verfahren zur Herstellung eines ohne technische Hilfsmittel visuell wahrnehmbaren Sicherheitsmerkmals, Sicherheitsmerkmal für kunststoffbasierendes Wert- oder Sicherheitsdokument sowie Dokument mit wenigstens einem solchen Sicherheitsmerkmal |
PCT/EP2010/000954 WO2010089155A1 (de) | 2009-02-04 | 2010-02-03 | Sicherheitsmerkmal für kunststoffbasierendes wert- oder sicherheitsdokument |
Publications (2)
Publication Number | Publication Date |
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EP2393668A1 true EP2393668A1 (de) | 2011-12-14 |
EP2393668B1 EP2393668B1 (de) | 2015-06-24 |
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ID=42122788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10704330.9A Active EP2393668B1 (de) | 2009-02-04 | 2010-02-03 | Sicherheitsmerkmal für dokument und herstellungsverfahren dessen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2393668B1 (de) |
CN (1) | CN102271929B (de) |
DE (1) | DE102009007779C5 (de) |
WO (1) | WO2010089155A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009020846A1 (de) * | 2009-05-12 | 2010-11-25 | Giesecke & Devrient Gmbh | Farbannahmeschicht mit Aussparung |
DE102012215742A1 (de) | 2012-09-05 | 2014-03-06 | Bundesdruckerei Gmbh | Sicherheits- und/oder Wertprodukt |
DE102013200895B4 (de) | 2013-01-21 | 2017-05-11 | Bundesdruckerei Gmbh | Wert- oder Sicherheitsprodukt sowie Verfahren zur Herstellung eines Sicherheitsmerkmals auf oder in dem Wert- oder Sicherheitsprodukt |
WO2015085439A1 (en) * | 2013-12-09 | 2015-06-18 | Orell Füssli Sicherheitsdruck Ag | Security document with invisible marking |
DE102014013917A1 (de) * | 2014-09-18 | 2016-03-24 | Giesecke & Devrient Gmbh | Sicherheitsdokument mit Schutzschicht |
GB2566975B (en) | 2017-09-29 | 2020-03-25 | De La Rue Int Ltd | Security Device And Method Of Manufacture Thereof |
DE102018005308A1 (de) | 2018-07-04 | 2020-01-09 | Giesecke+Devrient Mobile Security Gmbh | Schichtanordnung mit Glaskörpern |
DE102019007885A1 (de) * | 2019-11-13 | 2021-05-20 | Mühlbauer Gmbh & Co. Kg | Wert-oder Sicherheitsprodukt und Verfahren zum Herstellen eines Wert- oder Sicherheitsprodukts |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3231460A1 (de) * | 1982-08-24 | 1984-03-01 | GAO Gesellschaft für Automation und Organisation mbH, 8000 München | Ausweiskarte mit im auf- und durchlicht pruefbaren merkmalen |
DE19915943A1 (de) * | 1999-04-09 | 2000-10-12 | Ovd Kinegram Ag Zug | Dekorationsfolie |
DE10013410B4 (de) * | 2000-03-17 | 2011-05-05 | Ovd Kinegram Ag | Laminat, insbesondere in Form von Karten, und Verfahren zu dessen Herstellung |
US7221512B2 (en) * | 2002-01-24 | 2007-05-22 | Nanoventions, Inc. | Light control material for displaying color information, and images |
DE10254500B4 (de) * | 2002-11-22 | 2006-03-16 | Ovd Kinegram Ag | Optisch variables Element und dessen Verwendung |
EP2474424A3 (de) * | 2003-11-21 | 2014-01-08 | Visual Physics, LLC | Mikrooptisches Sicherheits- und Bilddarstellungssystem |
DE102004016596B4 (de) | 2004-04-03 | 2006-07-27 | Ovd Kinegram Ag | Sicherheitselement in Form eines mehrschichtigen Folienkörpers und Verfahren zur Herstellung eines Sicherheitselements |
DE102004044458B4 (de) * | 2004-09-15 | 2010-01-07 | Ovd Kinegram Ag | Sicherheitsdokument |
DE202004019437U1 (de) * | 2004-12-16 | 2005-02-17 | Leonhard Kurz Gmbh & Co. Kg | Optisches Sicherungselement |
GB0504959D0 (en) * | 2005-03-10 | 2005-04-20 | Rue International De La Ltd | Security device based on customised microprism film |
US20070098959A1 (en) * | 2005-06-03 | 2007-05-03 | Daniel Lieberman | Substrates and articles having selective printed surface reliefs |
DE102005027380B4 (de) * | 2005-06-14 | 2009-04-30 | Ovd Kinegram Ag | Sicherheitsdokument |
FR2893424B1 (fr) * | 2005-11-16 | 2008-01-25 | Arjowiggins Soc Par Actions Si | Structure optique, notamment pour un document de securite et/ou de valeur. |
DE102006005000B4 (de) * | 2006-02-01 | 2016-05-04 | Ovd Kinegram Ag | Mehrschichtkörper mit Mikrolinsen-Anordnung |
DE102006032660A1 (de) | 2006-07-13 | 2008-01-17 | Ovd Kinegram Ag | Mehrschichtkörper mit Mikrooptik |
DE102007007914A1 (de) * | 2007-02-14 | 2008-08-21 | Giesecke & Devrient Gmbh | Prägelack für mikrooptische Sicherheitselemente |
-
2009
- 2009-02-04 DE DE102009007779.0A patent/DE102009007779C5/de active Active
-
2010
- 2010-02-03 CN CN201080004334.6A patent/CN102271929B/zh active Active
- 2010-02-03 EP EP10704330.9A patent/EP2393668B1/de active Active
- 2010-02-03 WO PCT/EP2010/000954 patent/WO2010089155A1/de active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2010089155A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2393668B1 (de) | 2015-06-24 |
CN102271929B (zh) | 2014-12-17 |
CN102271929A (zh) | 2011-12-07 |
WO2010089155A1 (de) | 2010-08-12 |
DE102009007779C5 (de) | 2017-07-27 |
DE102009007779B3 (de) | 2010-10-07 |
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