EP3418067A1 - Personnalisation fluorescente à l'aide du laser - Google Patents

Personnalisation fluorescente à l'aide du laser Download PDF

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Publication number
EP3418067A1
EP3418067A1 EP18000518.3A EP18000518A EP3418067A1 EP 3418067 A1 EP3418067 A1 EP 3418067A1 EP 18000518 A EP18000518 A EP 18000518A EP 3418067 A1 EP3418067 A1 EP 3418067A1
Authority
EP
European Patent Office
Prior art keywords
layer
feature
personalization
region
electromagnetic radiation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18000518.3A
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German (de)
English (en)
Other versions
EP3418067B1 (fr
Inventor
Josef Riedl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient Mobile Security GmbH
Original Assignee
Giesecke and Devrient Mobile Security GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Giesecke and Devrient Mobile Security GmbH filed Critical Giesecke and Devrient Mobile Security GmbH
Publication of EP3418067A1 publication Critical patent/EP3418067A1/fr
Application granted granted Critical
Publication of EP3418067B1 publication Critical patent/EP3418067B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/346—Perforations
    • 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
    • B42D13/00—Loose leaves modified for binding; Inserts
    • 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
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • 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
    • B42D25/41—Marking using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/455—Associating two or more layers using heat
    • 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
    • B42D25/45—Associating two or more layers
    • B42D25/46—Associating two or more layers using pressure
    • 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
    • B42D25/48—Controlling the manufacturing process
    • B42D25/485—Controlling the manufacturing process by electronic processing means

Definitions

  • the present invention is directed to a layer assembly for producing a value document having both a personalization feature and a security feature, which are preferably fluorescent.
  • the present invention is further directed to a value document, comprising the layer arrangement and to a method for producing a value document or the proposed layer arrangement.
  • a correspondingly configured device is proposed as well as a computer program product with control commands which operate the proposed device or execute the proposed method.
  • WO 2013/183 000 A1 shows an arrangement which is marked by means of a laser.
  • US 7,187,396 B2 shows a method for laser marking an article having an additive with respect to the introduction of the laser marking.
  • security features of value documents are known from the state of the art which have a fluorescent feature which, for example, exhibits a certain optical behavior under a test device or a test lamp.
  • a fluorescent feature which, for example, exhibits a certain optical behavior under a test device or a test lamp.
  • certain layer models are known, which are used for example for producing a banknote, a passport page or a smartcard.
  • UV blockers are used, ie plastic layers, which are not permeable to a certain range of wavelength, so mainly ultraviolet light.
  • a layered model which has a fluorescent plastic layer which is covered with a UV blocker or a UV-inhibiting layer.
  • the present object is further directed to the provision of a value document comprising the proposed layer arrangement.
  • a method for producing the layer arrangement is to be proposed or an appropriately equipped device.
  • a computer program product is to be created, with control commands which execute the proposed method or operate the proposed device.
  • a layer arrangement for producing a value document, having both a personalization feature and a security feature, which are optically excitable from outside the value document, comprising at least a first layer for receiving the personalization feature, which has a first region which is relative to a wavelength range of an electromagnetic Radiation permeable, and a second region which is permeable to the wavelength range of the electromagnetic radiation, and a second layer which is coated by the at least one first layer, wherein at the permeable region of the at least one first layer, a security feature in the second layer is arranged, which is excitable in the wavelength range of the electromagnetic radiation.
  • the electromagnetic radiation is preferably ultraviolet radiation.
  • Exciting a personalization feature and a security feature involves exposing the underlying material that forms the personalization feature or security feature. Then a light is emitted, which is perceptible, for example, by a human eye.
  • UV radiation or a fluorescent material is always assumed, although the person skilled in the art also knows other wave ranges in which the features according to the invention can be used with particular preference.
  • a wavelength range of electromagnetic radiation is to be understood as a wavelength range of ultraviolet radiation.
  • the person skilled in the art recognizes corresponding types of UV blockers, which also make it possible for a corresponding layer to be made impermeable to such radiation. Examples of such UV blockers are organic UV absorbers and inorganic UV absorbers.
  • the proposed layer arrangement can be produced in such a way that a first layer and a second layer or various further layers are stacked on one another and then laminated.
  • coating involves hot lamination or hot pressing of various layers such that the layer arrangement according to the invention is formed.
  • it may also be possible to coextrude the corresponding layers and to connect them in such a way that a layer arrangement arises which has layers which are inseparably fused together.
  • a value document it may be a smart card, a passport page or a smart card Banknote.
  • the person skilled in the art recognizes that other formats can be present, such as any type of authorization means.
  • the present invention is used in a smart card which has a layer arrangement which alone forms the card body or forms the card body by laminating further layers.
  • an overlay layer typically has a fluorescent plastic layer for the laser personalization in the interior and on its outer side each having a plastic layer with UV blockers.
  • fluorescent security features arranged underneath the overlay layer are not visible from the outside because the UV blockers do not transmit UV light.
  • a plastic layer is proposed which does not have a UV blocker in a first region and a fluorescent plastic layer for laser personalization in a second region inside and in each case has plastic layers with UV blocks on its outer sides.
  • a so-called UV laser is a laser that is capable of removing the layer with the UV blocker.
  • the ultraviolet radiation used to stimulate the security features or personalization features can generally be used.
  • At least one first layer for receiving the personalization feature is provided, which has a first region which is permeable to ultraviolet radiation.
  • a second layer below this first layer or at this first layer, which likewise has a feature, for example a security feature, without the first layer concealing the second layer.
  • the second layer can be arranged under or on a second region of the first layer, wherein this second layer is not arranged at the location where the first layer is impermeable, no security feature.
  • this second layer is not arranged at the location where the first layer is impermeable, no security feature.
  • a second layer can be arranged, wherein the first layer, by means of its permeable region, allows a view window on the security feature of the second layer, so to speak.
  • that portion of the second Layer, in which the security feature is arranged not covered by the first layer, for example by UV blocker of the first layer.
  • a layered structure which provides that both in the first layer a personalization feature can be created, which is fluorescent, and in the second layer also a security feature can be arranged, which is fluorescent. Due to the clever arrangement of the transmissive regions and the impermeable regions, it is thus possible to detect both the feature of the first layer and the feature of the second layer in an excited state plan view. Thus, the viewer thus looks at the first layer and perceives the fluorescent personalization feature and can also recognize the security feature of the second layer by means of the transmissive region. Thus, therefore, the same wavelength range of the electromagnetic radiation is applied to the value document or the layer arrangement, and thus both features, namely the personalization feature and the security feature, can be recognized simultaneously.
  • the disadvantage is overcome that a UV blocker of the at least one first layer disturbs the security feature of the second layer.
  • the personalization feature and the security feature should each be interpreted in such a way that a feature is created from a fluorescent material.
  • the personalization feature can therefore be described as a personalization feature, as it is introduced into the first layer, for example by means of a laser, such that a layer arrangement of the first layer is modified such that a UV blocker on a fluorescent layer is removed. Thus, so the personalization feature lasered into the first layer.
  • the security feature of the second layer may, for example, schematically represent a photo of a cardholder and generally serve for verification.
  • a security feature is always an individual feature and thus can be understood as a personalization feature.
  • Both features have in common that they are created by means of a fluorescent material which is excitable by means of an ultraviolet radiation source. Thus, therefore, two features are created, which are arranged offset in different layers. Thus, in a plan view, each of the two features can be seen, and it overcomes the disadvantage that one feature could cover the other feature. This would generally be feared that corresponding fluorescent features are implemented using UV blockers.
  • a UV blocker may for example be used for an impermeable area, but for the other feature a transparent area or permeable area remains.
  • the second layer may be referred to as a core layer having the security feature.
  • a first layer but for example two layers of the first type, namely such that a first layer of the first type is disposed above the second layer and a second layer of the first type is disposed below the second layer.
  • the second layer is embedded in two layers of the respective first type.
  • a plurality of first layers can be arranged, the transmissive areas are arranged in the register so that a transparent viewing window is formed such that the security feature of the second layer always excitable and thus remains visible.
  • the at least one first layer has a partial layer which can be excited in the wavelength range of the electromagnetic radiation.
  • a fluorescent feature for example a personalization feature
  • a partial layer is provided which makes it possible for this partial layer to be inserted into the first layer in a restricted manner along its longitudinal axis, or else that further partial layers can be arranged underneath or above it.
  • a sub-layer may cooperate with further sub-layers such that the first layer is provided.
  • the sub-layer in a cross-section through the layer arrangement would be the same length as the first layer.
  • the sub-layer does not extend over the entire region of the first layer, but thus covers only a part of the first layer.
  • a partial layer can be limited both in thickness and in width.
  • the at least one first layer has a further impermeable layer.
  • the above-described partial layer can be formed from a fluorescent material and an impermeable layer can be arranged thereon.
  • the impermeable layer may be present as a UV blocker covering the sub-layer from both sides.
  • a pattern can then be engraved, such that below the engraving, the fluorescent sub-layer comes to light. In this way, the personalization feature can be created particularly advantageous.
  • the further impermeable layer is printed on the at least one first layer.
  • the impermeable layer can be provided particularly easily and can be applied to the layer of fluorescent material.
  • a technical effect arises that the corresponding printed layer can be present by means of an external pressure with respect to the value document.
  • screen printing is suitable.
  • the design of the impermeable layer, so the UV blocker cover additionally variable in terms of personalization.
  • the printed layer can be printed in any pattern and be personalized in retrospect by means of a laser.
  • the at least one layer and the further impermeable layer provide a substantially planar layer.
  • This has the advantage that is not the disadvantage of printed layer results in that the layer is uneven and thus can be abraded, but rather the first layer and the impermeable layer can be arranged flat, ie, substantially smooth and uniform.
  • the person skilled in the art recognizes that production-specific deviations may occur and that the resulting layer is essentially flat.
  • the feature "essentially” is optional and only relates to possible manufacturing tolerances. For example, a plane layer can be regarded as even if the user of the value document haptically detects no unevenness.
  • the at least one layer has the personalization feature in the form of a laser engraving.
  • the first layer can be adapted so that a personalization feature arises from the fact that a laser engraving is introduced into the first layer such that the second layer and thus spares the security feature of the laser engraving becomes.
  • a personalization feature is created without compromising the appropriate security feature.
  • the laser engraving removes the at least one first layer such that an excitable material underneath it is exposed in the form of a laser engraved pattern.
  • This has the advantage that, for example, a UV blocker of the first layer can be removed in a pattern, so that the fluorescent first layer shines through and thus the pattern becomes recognizable.
  • the feature of a stimulable material located underneath is to be understood such that the first layer is arranged on the second layer, ie represents a coating which is removed in such a way that in a plan view of the first layer, the underlying second layer is at least partially visible.
  • the electromagnetic radiation is in the form of ultraviolet radiation.
  • This has the advantage that the personalization feature is not immediately recognizable, but rather requires only an ultraviolet radiation source, which stimulates the corresponding features, ie the personalization feature and the security feature, so that optically a luminaire arises in such a way that the two features recognizable become.
  • both the personalization feature and the security feature are formed by means of a fluorescent material. This has the advantage that both features can be excited by means of a single ultraviolet radiation source and at the same time both features are verifiable without both features would interfere with each other.
  • the first and / or the second layer is present as a plastic layer.
  • This has the advantage that a simple layer structure is proposed which, for example, can first be laminated together or coextruded and then personalized by means of a laser.
  • the at least one first layer is made transparent. This has the advantage that further optical security features can be introduced into the layer arrangement or into the value document.
  • the first layer can thus also act as a protective layer.
  • a value document comprising a layer arrangement, as has already been described.
  • a value document can have the layer arrangement in that the layer arrangement itself represents the value document, but also that further layers are provided which are inseparably connected to the layer arrangement.
  • the value document may be a chip card, a smart card, an authorization document, a passport page and a banknote.
  • the person skilled in the art will recognize further value documents which can be provided by means of a layer arrangement.
  • the object is also achieved by a method for producing a value document or a method for producing a layer arrangement for a value document.
  • the object is also achieved by a correspondingly configured device which provides the layer arrangement or the document of value or operates the method and is accordingly configured analogously.
  • the object is also solved by a computer program product with control commands which carry out the proposed method when executed on a computer or which operate the proposed device.
  • the structural features of the layer arrangement are included in the proposed value document.
  • the method is suitable for producing the layer arrangement or producing the value document.
  • the device suitable to produce the layer arrangement or the document of value.
  • the method thus implements structural features of the layer arrangement or the value document and is suitable for operating the device.
  • the device is in turn suitable for carrying out the proposed method and for providing the layer arrangement or the value document.
  • the computer program product contains control commands that simulate the proposed method steps and also drive or operate the structural units of the proposed device.
  • Fig. 1 shows above a first layer, which can also be referred to as an overlay.
  • the first layer at the top consists of three partial layers, the uppermost layer being a plastic layer with UV blocker, below that is a fluorescent plastic layer for the laser personalization and underneath a plastic layer with UV blocker.
  • the disadvantage is to be overcome that a combination of a fluorescent security feature with a fluorescent personalization is difficult or is feasible only with great technical effort.
  • a UV personalization by means of a laser would be possible here, whereby the additional fluorescent security feature would not be visible since the UV blocker does not transmit UV radiation.
  • Fig. 1 shows the second layer, which has an overlay and a standard overlay at the top and bottom, and has a core layer in the middle.
  • the core layer is the second layer.
  • An additional fluorescent security feature is located on the left side in the second layer.
  • Fig. 1 Thus, an application example, wherein now the task is that in the upper, first layer, the fluorescent plastic layer 3 is to be exposed so that a personalization feature arises.
  • the UV blocker 2 is removed, for example by means of a laser.
  • the first layer for example an overlay layer, which is shown at the top, has UV blockers.
  • the additional fluorescent security feature disposed in the lower, second layer eg a core layer, would be covered.
  • the invention provides that the upper, first layer 2 has a region which is provided without UV blocker.
  • the first layer 2 is shown according to the invention and the second layer according to the invention is shown below.
  • the upper layer is thus an enlargement of the lower overlay layer.
  • an area is provided which is permeable to ultraviolet light, that is to say an area without a UV blocker.
  • an area of UV blocker On the right side of the plastic layer is an area of UV blocker, an area that is impermeable to ultraviolet light.
  • a fluorescent plastic layer 3 is provided, which is intended for laser personalization. Underneath is the further part of the plastic layer with UV blocker.
  • this upper layer is arranged on the second layer above and below, as it is in the lower part of the Fig. 2 is drawn, so it is particularly advantageous that the plastic layer 1 is arranged without UV blocker on the left above the fluorescent security feature 4.
  • the personalization feature is arranged on the right side and has an environment provided with a UV blocker.
  • the layer structure in the lower region of Fig. 2 is formed such that the two first layers, ie the overlay layer at the top and bottom on the left side have a transmissive region, so that therefore the additional fluorescent security feature 4 in the inner layer can be excited on the left.
  • the personalization feature is formed on the right by means of the fluorescent plastic layer such that the plastic layer with UV blocker above and below the fluorescent plastic layer is removed.
  • both the personalization feature and the security feature can be stimulated and recognized.
  • an ultraviolet radiation source can be provided, which applies radiation to both.
  • a radiation is applied to the first layer and the second layer from above, such that the additional fluorescent security feature in the second, that is to say the middle layer, shines through and, on the right side, in the first layer, ie the overlay layer, the personalization feature can be seen is.
  • both features are recognizable.
  • Fig. 3 shows a further advantageous film structure or a layer arrangement, wherein in turn at the top an overlay layer is displayed in enlargement, which in the lower part of Fig. 3 is arranged above and below the middle core layer.
  • the left side of the first layer, so above, is again designed without UV blocker and the right side is designed with UV blocker.
  • a fluorescent plastic layer which is entered in the upper right of the present figure.
  • the plastic layer is applied with the UV blocker on top of the first layer, so that the first layer comprises an area that is UV-opaque.
  • the fluorescent plastic layer which is partially exposed in the present figure from above by means of a laser. This partial exposure creates a pattern, a personalization feature.
  • this layer as listed above, applied to the core layer, as in the present Fig. 3 is entered below.
  • the printed layer has a minimum thickness of 10 microns.
  • Fig. 4 shows above the first layer, wherein on the right side a partial layer is incorporated.
  • the sub-layer on the right side is arranged such that below and above a plastic layer with UV blocker is arranged.
  • the sub-layer itself is present as a fluorescent plastic layer.
  • On the left side there is no UV blocker in the upper layer so that an underlying security feature is also excitable.
  • both a security feature and a personalization feature can be created, both of which are excitable by ultraviolet light.
  • the right-hand marked element may be a security feature, which is arranged under a permeable region.
  • the personalization feature can be seen, which is laser engraved into an opaque layer to reveal the underlying fluorescent material.
  • a radiation can be introduced, so that both the security feature is excited below the transmissive region, as well as on the right side of the personalization element on the right side in the first layer.
  • a map surface is shown, which may also be a page of a passbook.
  • Fig. 5 shows in the upper part on the left side a part A and on the right side a part B, ie a permeable area on the left side and on the right side an impermeable area.
  • the area using UV blocker On the right side of the impermeable area, so the area using UV blocker, be removed by means of a laser, so that a personalization feature sets such that the fluorescent plastic layer shines through.
  • the transparent plastic layers can give a transparent, flat or even film.
  • Part A of the film may consist of one or more layers.
  • Part B of the film consists of at least two layers, at least one outer layer containing the UV blocker and the other the fluorescent plastic.
  • the layers are not to be understood here conclusively with regard to their enumeration, so that further layers can be arranged here.
  • the overlay can have a total thickness of 30 ⁇ m to 800 ⁇ m.
  • the corresponding layers should have a thickness that reliably prevents penetration of UV radiation ⁇ 400 nm, but at the same time enables laser destruction, in personalization. Layer thicknesses of 10-30 ⁇ m are best suited here. Thinner or thicker layers are also possible by reducing or increasing the concentration of the UV blocker.
  • a first layer is shown, wherein on the left side of a plastic layer without UV blocker, so a permeable sub-layer or an area is displayed, and on the right side of the fluorescent plastic layer.
  • a permeable sub-layer or an area is displayed, and on the right side of the fluorescent plastic layer.
  • the fluorescent part z. B. can be printed by screen printing with a UV-blocking ink.
  • the overlay can have a total thickness of 30 ⁇ m to 800 ⁇ m.
  • Fig. 6 shows an apparatus for providing the layer model or the value document.
  • a coextruder is shown, which provides three feeds in the upper area, wherein on the left side the permeable area and on the right side of the impermeable area can be provided by coextrusion. This can be done, for example, by melting a granulate, which is then pressed through the nozzle.
  • an overlay in cross section As again a plastic layer without UV blocker is shown on the left, and on the right side a sequence of a plastic layer with UV blocker, a fluorescent plastic layer and a plastic layer with UV blocker drawn.
  • the corresponding layer model is provided by means of coextrusion.
  • FIG. 3 shows a schematic flow diagram of a method for producing a value document or a layer arrangement with both a personalization feature and a security feature, which can be optically excited from outside the value document, comprising providing 100 at least one first layer for receiving the personalization feature, which has a first area transparent to a wavelength range of electromagnetic radiation and a second range opaque to the wavelength range of the electromagnetic radiation, and providing 101 a second layer coated by the at least one first layer 102, wherein at the transmissive region At least one first layer of a security feature is arranged in the second layer 103, which can be excited in the wavelength range of the electromagnetic radiation.
  • the person skilled in the art recognizes that the individual method steps are carried out iteratively and / or in a different order can be. In some cases, sub-steps are to be provided as well.
  • the device is configured analogously to the method.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Optics & Photonics (AREA)
  • Credit Cards Or The Like (AREA)
EP18000518.3A 2017-06-19 2018-06-14 Personnalisation fluorescente à l'aide du laser Active EP3418067B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017005778.8A DE102017005778A1 (de) 2017-06-19 2017-06-19 Fluoreszierende Personalisierung mittels Laser

Publications (2)

Publication Number Publication Date
EP3418067A1 true EP3418067A1 (fr) 2018-12-26
EP3418067B1 EP3418067B1 (fr) 2022-08-10

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EP18000518.3A Active EP3418067B1 (fr) 2017-06-19 2018-06-14 Personnalisation fluorescente à l'aide du laser

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EP (1) EP3418067B1 (fr)
DE (1) DE102017005778A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3915778A1 (fr) * 2020-05-27 2021-12-01 Giesecke+Devrient Mobile Security GmbH Feuille fluorescente coextrudée

Citations (5)

* Cited by examiner, † Cited by third party
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