EP2550166A1 - Security element and production method therefor - Google Patents

Security element and production method therefor

Info

Publication number
EP2550166A1
EP2550166A1 EP11709644A EP11709644A EP2550166A1 EP 2550166 A1 EP2550166 A1 EP 2550166A1 EP 11709644 A EP11709644 A EP 11709644A EP 11709644 A EP11709644 A EP 11709644A EP 2550166 A1 EP2550166 A1 EP 2550166A1
Authority
EP
European Patent Office
Prior art keywords
optical
optical structure
security element
window
element
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
EP11709644A
Other languages
German (de)
French (fr)
Other versions
EP2550166B1 (en
Inventor
Andreas Rauch
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 GmbH
Original Assignee
Giesecke and Devrient 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
Publication date
Priority to DE102010012495A priority Critical patent/DE102010012495A1/en
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Priority to PCT/EP2011/001329 priority patent/WO2011116903A1/en
Publication of EP2550166A1 publication Critical patent/EP2550166A1/en
Application granted granted Critical
Publication of EP2550166B1 publication Critical patent/EP2550166B1/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/351Translucent or partly translucent parts, e.g. windows
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/328Diffraction gratings; Holograms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/342Moiré effects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/355Security threads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D2033/00Structure or construction of identity, credit, cheque or like information-bearing cards
    • B42D2033/06Translucent material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D2035/00Nature or shape of the markings provided on identity, credit, cheque or like information-bearing cards
    • B42D2035/34Markings visible under particular conditions or containing coded information
    • B42D2035/36Markings visible under particular conditions or containing coded information visible in transmitted light, e.g. in a window region

Abstract

In a security element for security papers, documents of value or the like, having a carrier (7) which has a front side (2) and a rear side (5), a lamination (13a, 12a) which is applied to the carrier (7), and an optical structure (8) which comprises an upper side (15), an underside (14) and an optical element (9), and produces a motif (3) which can be perceived visually from the upper side (15), it is provided that the carrier (7) has at least one window (4), the optical structure (9) is laid with its upper side (15) on the rear side (5) of the carrier (7) over the window (4), with the result that the motif (3) can be perceived visually through the window (4) from the front side (2), and the lamination (13a, 12a) is attached on the rear side (5) and covers the underside (14) of the optical structure (8).

Description

 Security element and

 Manufacturing process for it

The invention relates to a security element for security papers, documents of value or the like, having a carrier having a front and a back, a lamination applied to the carrier and an optical structure comprising a top side, a bottom side and an optical element, and one of creates a visually perceptible motif on top.

The invention further relates to a document of value with such a security element. The invention further relates to a manufacturing method for a security element for security papers, documents of value or the like, in which a front and a back having carrier is provided, an optical structure is provided which comprises a top, a bottom and an optical element, and creates a visually perceptible feature from the top, and a lamination is applied to the carrier.

Items to be protected are often provided with a security element that allows verification of the authenticity of the item and at the same time serves as protection against unauthorized reproduction.

Items to be protected include, for example, security papers, identity and value documents (such as bank notes, chip cards, passports, identification cards, identity cards, stocks, bonds, certificates, vouchers, Checks, tickets, credit cards, health cards, ...) as well as product security elements such as labels, seals, packaging.

The security against forgery of a security element is particularly great when the security element shows perceptible motifs that are generated by an optical effect that can not be reproduced with a copied motif.

A combination of microstructure elements with overlying microlenses has proven to be particularly tamper-proof which magnifies the microstructure elements. Here, the so-called Moire effect can be used. Such security elements are therefore also referred to as "modulo mapping" or "Moire Magnifier". An exemplary description of such a security element can be found in WO 2008/031170 AI, according to which the microlenses and the microstructures are produced by using an embossable lacquer. Such optical structures can not be reproduced with conventional copying processes, since the optical imaging can be designed in particular as dependent on the viewing angle. For example, this is known. an orthoparallactic effect.

For this security against counterfeiting, however, an optical image is required, which is why optical elements, for example in the form of said microlens, are necessary. As a rule, their imaging effect requires that the optical elements, eg the microlenses, have an uneven surface. The front of the optical structure is therefore usually not plan. Unwanted reproduction of the optical elements by molding the surface can therefore not be ruled out. The invention is therefore the object of developing a security element of the type mentioned so that the security against counterfeiting is increased. This object is achieved by a security element for security papers, documents of value or the like, having a carrier having a front side and a rear side, a lamination applied to the carrier and an optical structure comprising an optical element having a lower and an upper side, and produces a visually perceptible from the top motif, wherein the carrier has at least one window, the optical structure is placed on the back of the carrier over the window, with its top to the front, so that the subject from the front through the window Visible visually, and the lamination is attached to the back, and covers the optical structure on the underside.

The object is further achieved by a value document with such a security element. The object is also achieved by a manufacturing method for a security element for security papers, documents of value or the like, in which a front and a back having carrier is provided, an optical structure is provided comprising a microstructure and an optical element and a top and a Underside has, and creates a visually perceptible from this top motif, and on the carrier a lamination is applied, wherein the provided carrier has at least one window or is provided with at least one window, the optical structure on the back of the carrier on the Window is placed, with the optical structure with its top to Front is indicative, so that the motif from the front through the window is visually perceptible, and the lamination on the back of the carrier and the optical structure is attached to the underside overlapping.

In the following description of the invention and in the above definition of the invention, the different sides of the carrier and the optical structure are distinguished by different terms. The carrier has a front and a back, the optical structure has a top and a bottom. This choice of terminology serves the conceptual distinction of the top surfaces of the support and optical structure and is otherwise not intended to represent a technical limitation.

The invention thus provides that the optical structure which generates the particularly forgery-proof motif is applied to the back of the security element so that its upper side and thus the motif generated by the optical structure through a window in the security element when viewed from the front of the security element are visible. At the same time, the optical element is covered by the lamination from the rear side of the carrier. This construction makes it possible to embed the optical element (for example comprising a moire magnifier or a modulo mapper or other optically active structures) in a security element. The underside of the optical structure is covered, allowing access for unauthorized reproduction, e.g. B. by impression, difficult. The underside of the optical structure is further protected against mechanical influence and chemical influence.

The same applies to the top of the optical structure. This is located in the window and can therefore be molded only very difficult. At the same time they or the like against contamination protected, which in particular provided at the top optical elements that protrude spatially, z. B.

in microlens elements, is advantageous. The optical structure has optical elements on its upper side. These optical elements may particularly preferably be a microlens array, which cooperates with microstructures underlying the upper side. In this way, a Moir0 magnifier or a modulo-mapping element, as known from WO 2009/000528, can be realized in the optical structure. According to experience, such elements are particularly tamper-proof. However, the optical element of the optical structure may also be, for example, a Fresnel structure or a hologram. With regard to the 3D structure, in particular the structure disclosed in DE 10 2009 056 934 can be used. The disclosure of the two writings mentioned in this paragraph is fully incorporated here.

For increased security against counterfeiting, it is possible to colorize or colorize microstructures that are embedded on the underside of the optical structure by the lamination. This can be done by color filling, as described in WO 2005/052650, microtip printing, as described in DE 102006 029852, or by filling with nanoparticles or nanostructures. The publications mentioned herein are to be considered as fully incorporated into this description. It is also possible to provide microstructures with a transparent or semitransparent metallization or with a layer system which effects viewing-angle-dependent color properties (so-called color shift). It is also possible to embed the microstructures with a lacquer system which is located between the microstructures and the embedment has a refractive index difference of at least 0.3.

The optical structure can be particularly preferably provided in the form of a separately produced strip, which is then applied to the carrier. For further protection against counterfeiting, it is advantageous to provide a further security element in this strip in addition to the optical structure at other locations, e.g. an additional hologram. This is only visible from the back, as it is not over the window.

Of course, a strip may be used which has a plurality of optical structures, if appropriate in the carrier correspondingly more windows are formed.

The overlapping of the optical structure according to the invention on the back side of the carrier has, as a further advantage, that such a strip can be printed well, since a uniform pressure-accepting layer is available. The security element can be designed, in particular, as a security thread, tear-open thread, security strip, security strip, patch or as a label for application to a security paper, value document or the like. The term security paper is understood here in particular as the precursor that can not yet be processed to form a value document which, in addition to the security element according to the invention, may also have further authenticity features (such as, for example, luminescent substances provided in the volume). Under value documents are here on the one hand from security understood documents. On the other hand, value documents can also be other documents and objects which can be provided with the security feature according to the invention, so that the value documents have non-copyable authenticity features, whereby an authenticity check is possible and at the same time unwanted copies are prevented.

The manufacturing method according to the invention can be developed so that the described preferred embodiments and embodiments of the security element are produced.

It is understood that the features mentioned above and those yet to be explained below can be used not only in the specified combinations but also in other combinations or alone, without departing from the scope of the present invention.

The invention will be explained in more detail by way of example with reference to the accompanying drawings, which also disclose features essential to the invention. Show it:

1 is a plan view of a banknote with a security element 1 from the front,

2 is a plan view from the back,

Fig. 3 is a section along the line A-A of Fig. 2 and

4 shows a section along the line BB of Fig. 2nd The figures are not shown to scale for ease of illustration. Furthermore, partial hatching is not shown in order to be able to present the structure of the corresponding security element in a clearer manner. Incidentally, elements which in different embodiments functionally and / or structurally resemble or correspond bear the same reference numbers in all figures in order to avoid description repetitions. In the description, one side is referred to as the front side, the other side as the back side. For distinction, one side of an optical structure is referred to as bottom side, the other as top side. This convention is merely for ease of understanding and is not intended to be limiting as to the construction and / or application of the security element.

Fig. 1 shows in plan view a banknote 1, as seen from the front side 2 thereof. On the front side 2 of the banknote 1, a motif 3 can be seen, which is located in a window 4 of the banknote 1.

Fig. 2 shows the banknote 1 from the back 5. On this back 5, a strip 6 is applied, which covers, inter alia, the window 4. This strip 6 comprises an optical structure, which is explained below with reference to the sectional view of FIG. 3, which shows a section along the line A-A of FIG. 2. The position of the optical structure and thus of the window 4 is shown in dashed lines in the figure.

The banknote 1 is constructed on a carrier 7, into which the window 4 is introduced (eg by punching), preferably after a foil has been laminated onto the front side 2. However, this lamination is only required if a corresponding film is desired on the front. The structure of the front side 2 is otherwise irrelevant to the security element described here. Then, at the back 5 of the carrier. 7 the strip 6 is applied in such a way that the optical structure 8 comes to lie above the window 4.

The optical element 8 of the strip 6 is constructed as follows. It has on its upper side 15 microlenses 9, which were produced for example by embossing a suitable plastic layer. The microlenses 9 are located above a spacer material 10, which is optically transparent and, for example, also realized by a plastic film. Microstructure elements 11 are located on the rear side of underside 14 of optical element 8 opposite top side 15. The geometric arrangement or the design of microstructure elements 11 and the pattern in which microlenses 9 are arranged are matched to one another in such a way that they are viewed from the top gives a perceptible motif. The optical element 8 can thus realize, for example, a known moiré magnifier.

After the strip 6 is placed on the back 5 of the carrier 7 so that the optical structure 8 with its upper side 15, i. the side with the microlenses 9, is placed over the window, a lamination on the back 5 by means of a laminating paint 12a and a film 13a is provided. This lamination is applied to the back 5 so that the bottom 14 of the optical structure 8 is covered, so this is not exposed. The lamination by means of laminating lacquer 12a and foil 13a can correspond to the lamination by means of laminating lacquer 12b and foil 13b on the front side 2 of the banknote 1.

FIG. 4 shows a sectional view similar to FIG. 3, but along the line BB of FIG. 2, ie in a sectional plane which does not pass through the optical structure 8. As shown in FIG. 4, the strip 6 is in these areas in Essentially exclusively from the film, which serves as a spacer 10 in the field of optical structure. In addition, a hologram structure 16 is formed on the film, which is visible from the back 5 of the banknote 1 with suitable transparency of the lamination (layers 12a and 13a). In this way, the strip 6 not only effects a motif visible on the front side, which is produced by the optical structure 8, but at the same time also a motif provided on the rear side by the hologram structure 16.

Claims

Patent claims
1. Security element for security papers, documents of value or the like, with
a carrier (7) having a front side (2) and a rear side (5),
 a lamination (13a, 12a) applied to the support (7) and an optical structure (8) comprising a top side (15) and a bottom side (14) and an optical element (9) located at the top, and one of the Top (15) visually perceptible motif (3) generated, characterized in that
 the carrier (7) has at least one window (4),
 the optical structure (9) on the back (5) of the carrier (7) with its
Top (15) is placed over the window (4), so that the motif (3) from the front (2) through the window (4) is visually perceptible, and the lamination (13a, 12a) on the back (5) is attached and the underside (14) of the optical structure (8) covered.
2. Security element according to claim 1, characterized in that the optical structure (8) has a view from the top (15) under the optical element (9) lying microstructure (11) which together with the optical element (9) the motif ( 3) generated.
3. The security element according to claim 2, wherein the optical element comprises microlenses (9), which are adapted in a manner adapted to the microstructure (11)
Patterns are arranged.
4. Security element according to claim 3, wherein the optical structure (8) comprises a moire magnifier.
5. Security element according to one of the above claims, wherein the optical structure (8) comprises an optical element and / or additionally a hologram (16).
6. The security element according to one of the above claims, wherein the optical element comprises a 3D or a Fresnel structure.
7. Security element according to one of the above claims, wherein the optical structure (8) is part of a strip (6) which runs over the back (5) of the security element (1).
8. document of value with a security element according to one of Ansprü che 1 to 7.
9. A manufacturing method for a security element for security papers, documents of value or the like, in which
 a support (7) having a front side (2) and a back side (5) is provided,
 an optical structure (8) is provided which has an upper side (15) and a lower side (14) and an upper side (15) lying optical
Element (9), and generates a visual from the top (15) visually recognizable motif (3),
 on the carrier (7) a lamination (13a, 12a) is applied, characterized in that
the provided support (7) has at least one window (4) or is provided with at least one window (4),
the optical structure (9) on the back (5) of the carrier (7) is placed with its upper side (15) over the window (4), so that the motif (3) from the front (2) through the window (4) is visually perceptible, and
 the lamination (13a, 12a) on the back (5) and the bottom (14) of the optical structure (9) is mounted overlapping.
10. A manufacturing method according to claim 9, characterized in that the optical structure (8) is provided with a viewed from the top (15) ago, below the optional element (9) lying microstructure (11), which together with the optical element (9 ) generates the motif (3).
A manufacturing method according to claim 10, wherein the optical structure is provided with an optical element comprising microlenses (9) arranged in a pattern adapted to the microstructure (11).
12. Production method according to claim 11, wherein the optical structure (8) is designed as Moir6 magnifier.
13. The manufacturing method according to claim 9, wherein the optical structure is provided with an optical element and / or additionally with a hologram.
14. The manufacturing method according to any one of claims 9 to 13, wherein the optical element comprises a 3D or a Fresnel structure.
15. Manufacturing method according to one of claims 9 to 14, wherein the optical structure (8) in a strip (6) is formed, which is placed over the back (5) of the security element (1).
EP11709644.6A 2010-03-24 2011-03-17 Security paper, security document or similar and production method therefor Expired - Fee Related EP2550166B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102010012495A DE102010012495A1 (en) 2010-03-24 2010-03-24 Security element and manufacturing method therefor
PCT/EP2011/001329 WO2011116903A1 (en) 2010-03-24 2011-03-17 Security element and production method therefor

Publications (2)

Publication Number Publication Date
EP2550166A1 true EP2550166A1 (en) 2013-01-30
EP2550166B1 EP2550166B1 (en) 2014-05-07

Family

ID=44123472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11709644.6A Expired - Fee Related EP2550166B1 (en) 2010-03-24 2011-03-17 Security paper, security document or similar and production method therefor

Country Status (7)

Country Link
EP (1) EP2550166B1 (en)
CN (1) CN102905910B (en)
DE (1) DE102010012495A1 (en)
ES (1) ES2471074T3 (en)
HK (1) HK1176333A1 (en)
RU (1) RU2560298C2 (en)
WO (1) WO2011116903A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU192370U1 (en) * 2019-03-01 2019-09-13 Николай Григорьевич Ляпко Reflexology applicator

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4334847A1 (en) * 1993-10-13 1995-04-20 Kurz Leonhard Fa Value document with window
EP2284016A3 (en) 2003-11-21 2011-06-22 Visual Physics, LLC Micro-optic and image presentation system
DE102004014778A1 (en) * 2004-03-26 2005-10-13 Leonard Kurz Gmbh & Co. Kg Security and / or value document
DE102004041828A1 (en) * 2004-08-27 2006-03-23 Bundesdruckerei Gmbh Security feature for a value and security document and corresponding document
DE102006029852A1 (en) 2006-06-27 2008-01-03 Giesecke & Devrient Gmbh Method of applying a microstructure, mold and microstructured article
CN101557945B (en) 2006-09-15 2011-11-16 证券票据国际私人有限公司 Radiation curable embossed ink security devices for security documents
DE102007023560B4 (en) * 2007-05-21 2009-02-05 Ovd Kinegram Ag Multi-layer body
DE102007029203A1 (en) 2007-06-25 2009-01-08 Giesecke & Devrient Gmbh Security element
DE102008029638A1 (en) * 2008-06-23 2009-12-24 Giesecke & Devrient Gmbh Security element
DE102009056934A1 (en) 2009-12-04 2011-06-09 Giesecke & Devrient Gmbh Security element, value document with such a security element and manufacturing method of a security element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011116903A1 *

Also Published As

Publication number Publication date
RU2560298C2 (en) 2015-08-20
CN102905910B (en) 2016-02-17
EP2550166B1 (en) 2014-05-07
CN102905910A (en) 2013-01-30
HK1176333A1 (en) 2017-04-21
WO2011116903A1 (en) 2011-09-29
ES2471074T3 (en) 2014-06-25
RU2012145009A (en) 2014-04-27
DE102010012495A1 (en) 2011-09-29

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