EP1003646B1 - Wert- und sicherheitserzeugnis mit lumineszenzelement - Google Patents

Wert- und sicherheitserzeugnis mit lumineszenzelement Download PDF

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Publication number
EP1003646B1
EP1003646B1 EP98943829A EP98943829A EP1003646B1 EP 1003646 B1 EP1003646 B1 EP 1003646B1 EP 98943829 A EP98943829 A EP 98943829A EP 98943829 A EP98943829 A EP 98943829A EP 1003646 B1 EP1003646 B1 EP 1003646B1
Authority
EP
European Patent Office
Prior art keywords
value
security product
product according
layer
electrodes
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.)
Expired - Lifetime
Application number
EP98943829A
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German (de)
English (en)
French (fr)
Other versions
EP1003646A1 (de
Inventor
Benedikt Ahlers
Roland Gutmann
Arnim Franz-Burgholz
Frank Kappe
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.)
Bundesdruckerei GmbH
Original Assignee
Bundesdruckerei 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
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Application filed by Bundesdruckerei GmbH filed Critical Bundesdruckerei GmbH
Priority to EP02007941.4A priority Critical patent/EP1236584B2/de
Publication of EP1003646A1 publication Critical patent/EP1003646A1/de
Application granted granted Critical
Publication of EP1003646B1 publication Critical patent/EP1003646B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B42D15/00—Printed matter of special format or style not otherwise provided for
    • 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
    • B42D25/305—Associated digital information
    • 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
    • B42D25/373—Metallic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light

Definitions

  • the present invention relates to a valuable and security product with a luminescent element according to the preamble of patent claim 1.
  • electroluminescent films consist of inorganic, electroluminescent (s) and thermoplastic Plastic can be produced by means of extrusion or coextrusion. in principle would be the extrusion or coextrusion of such a system Security papers conceivable, but the graphical ones appear Design options to be limited by process logistics and the entire manufacturing process for the production of a security document and the necessary arrangements for authenticity checking very expensive become.
  • DE 43 15 244 A1 describes a method for producing a electroluminescent film using the sputtering technique described. This method would also be basically for the production of Security documents imaginable, but such a manufacturing process represents an extremely high effort in terms of the required for this technology Vacuum chambers and is also very difficult in a possible Manufacturing process can be integrated and also generates film layers using additional special coatings for the high mechanical requirements should be equipped with security documents.
  • DE 41 26 051 A1 in turn includes a security document embedded areal security element (security thread) presented, which is multilayered and has electroluminescent properties having.
  • security thread security document embedded areal security element
  • the disadvantage of this arrangement is that a relatively high surface area in Purchase must be made because of the excitation of the electroluminescent substances required electrodes are arranged one above the other.
  • DE-A 41 23 051 already describes a full-surface structure of electrodes, which are arranged above and below a full-surface electroluminescent layer.
  • WO - A are also from the prior art, in accordance with Article 54 (3) EPC 98/39163 and WO - A 98/47321.
  • WO-A 98/39163 describes a value and security product with luminescent Security elements and a method for producing the same and a Arrangement for visual and machine authenticity checking.
  • the WO - A 98/47321 describes an electroluminescent element and method its manufacture. In this document, the electroluminescent Arrangement, however, built on a board. The focus is on Reaching the brightest possible area. For this purpose, in sandwich-like structure described at least two electrode layers, the so exert a reinforcing effect on the luminescent layer to a to produce the best possible illuminated area.
  • the invention is therefore based on the object of improved luminance to be achieved with a minimal overall height.
  • a layer designed as an authenticity element self-illuminating arrangement provided in the form of a luminescent element, which is lit up by an electric field.
  • This Luminescent element serves as backlight for the above intended authenticity element.
  • this backlit layer is as Electroluminescent layer formed. It becomes an electroluminescent system used, in which preferably an electric field laterally, i. H. area, is built, so that an advantage of this arrangement is that the only slightly applies the entire structure to the carrier material.
  • the electric field to excite the Electroluminescent layer consists of flat electrodes, one above the other are arranged, the electroluminescent layer then between the Electrodes is arranged.
  • a transparent, electrically conductive layer is required, which is achieved by means of so-called ITO pastes (indium tin oxides).
  • ITO pastes indium tin oxides
  • pre-coated transparent films or glasses typically, biaxially oriented and thermally stabilized polyester films are coated with vapor-conductive or sputter-coated, electrically conductive tin oxide, indium tin oxide (ITO), or, in general, transparent, electrically conductive, metallized surfaces with surface resistance values in the range of a few ohms / square for glass substrates and typically 20 ohms / square up to 300 ohms / square and above.
  • High quality electroluminescence systems require a uniform Luminance and maximum luminous efficiency.
  • Glass substrates offer due to the high thermal resilience in coating processes i.a. a higher quality solution with higher light transmission in the visible Wavelength range with better surface conductivity.
  • the main advantage of ITO pastes printing technology lies in the relative simple application and almost any graphic Design options, especially with regard to more complex systems the electrical connections can be advantageous.
  • bus bars are electrically conductive borders used. This will uniform electrical fields achieved and thus a uniform Luminance.
  • This technology can also be used to connect the ITO electrode functionally favorable and ultimately the ITO electrode thickness can be in favor of greater transparency in thickness to a minimum be reduced.
  • bus bars are used in printing technology Silver, carbon, copper, etc. pastes printed, or a combination of these Elements and thereby surface resistance values in the range of a few 10 milli-ohms / square mm values reached.
  • the value and security product exhibits in one embodiment Security elements based on so-called micro-encapsulated, inorganic Group II and VI compounds of the periodic table (e.g., ZnS, CdS) which doped or activated with metals such as Cu, Mn, Ag and for printing Design using gravure are suitable. It can too electroluminescent security elements based on organic polymers being constructed.
  • the electrodes are lateral (i.e. flat) using conductive gravure inks lying next to each other), whereby in the resulting field gap between the electrodes alternating electromagnetic field is generated, whose field lines at least partly the printed image generated by the electroluminescent substances penetrate and thereby the electroluminescent security elements to Bring lights and thus visually and mechanically to the authenticity check can be used.
  • An electrically conductive gravure ink is based on carbon and / or silver or a mixture of both silver-plated and / or gold-plated metallic pigments or mica pigments in combination with suitable ones
  • Binders based on polyurethanes and / or aliphatic polyester and Appropriate diluents are used, in particular the two Electrode connections made in a non-oxidizing surface shape are.
  • aqueous layer is preferred as the dielectric and insulation layer Polyurethane layer on the unprepared surface of the Security document - e.g. a bill - before the actual one graphic design applied and then the phosphor paste is printed so a good and elastic adhesive bond with excellent To achieve surface resistance.
  • the luminescent security feature is preferably composed of individual ones Dots and lines designed graphically.
  • the electroluminescent layer described above used as a backlight for an authenticity element.
  • a thing Authenticity element is e.g. B. a laserable polycarbonate film, which is also in hereinafter referred to as PC overlay film.
  • Such a film can e.g. B. provided with authenticity features in the manner by a laser treatment be controlled and intentional cloudiness in the thick area of this film and / or discoloration can be applied, which then the below backlight arranged in this film these different zones of the authenticity element shines through differently accordingly.
  • Authenticity feature can be visible, such as B. a passport photo, a logo, a coat of arms, a personalized signature or the like.
  • the layer of the laserable overlay film Bores or recesses are introduced, which are also preferred generated by laser treatment.
  • the invention is not based on this limited; recesses of this type can also be produced by etching processes, Punching processes, embossing processes, through the action of electrode beams, Water jet treatment and the like.
  • Authenticity features can not only be introduced by laser treatment or by the other physical methods previously described and Treatment methods, but it can also put pressure on them Slide.
  • printing processes such as B. Offset printing, screen printing, thermal sublimation printing, gravure printing, as well as all non-contact printing process.
  • the Authenticity element can be changed within relatively large limits and different authenticity elements can be provided and that a backlight is assigned to this authenticity element.
  • planar Electrode arrangement consists of interdigitated electrodes, which form a field gap between them, in which field gap the electrical alternating field is generated, which the above or stimulates the electroluminescent layer in between and makes it glow.
  • the electroluminescent layer can be applied directly to the electrodes and in another embodiment, the Electroluminescent layer through a between the bottom of the Electroluminescent layer and the top of the electrode surface arranged Insulation layer to be separated.
  • the dielectric constant of this electroluminescent layer is chosen as high as possible. This has the advantage that the field lines, which are form as a leakage flux between the electrodes, with high efficiency in the Penetrate electroluminescent layer and make it light up.
  • a capacitive coupling provided.
  • This capacitive coupling takes place preferably by at least two spaced and which are insulated from each other on the security document which form one side of a plate capacitor.
  • the other, opposite Side of the plate capacitor is made up of assigned electrode areas Readout device formed.
  • the advantage of this arrangement is that the coupling of the electromagnetic Alternating field is contactless.
  • the manufacture of the luminescent element very simple because the electrodes together with the field-generating Electrode arrangement (for field excitation of the electroluminescent layer) in can be printed or applied in a single operation.
  • the reader which is used for the registration of the electromagnetic Alternating fields are responsible for the electrode area, especially just be set up. It is sufficient here that the reader with a appropriate battery to provide an inverter / oscillator that then with its connection arrangement on an assigned electrode arrangement goes, which electrode arrangement in turn the previously mentioned one side of the Plate capacitor is, the other side of which is arranged on the card Is electrode arrangement.
  • the authenticity element (the one before mentioned polycarbonate film) other features can also be assigned can, e.g. B. in the form that in the laser-treated film, in which corresponding recesses are arranged, additional microlenses on the Recesses are placed.
  • Such microlenses can of course, not just in a subsequent step on the previous one manufactured recesses are applied, but they can already through the first laser treatment of the overlay film appropriate treatment steps are applied.
  • Such microlenses improve the readability of the Authenticity feature because the solid angle of readability is increased and an angle dependency when viewed is reduced. Otherwise done also a general enlargement of the authenticity feature by the Lens effect.
  • microlenses are preferred by a high melt lamination process in the laser-treated film is introduced.
  • Corresponding polymers can also be used can be applied to the film by photopolymerization.
  • the overlay slide can also be formed as a holographically modulated photorefractive polymer layer his.
  • Electroluminescent layers are frequency range in the range of about 1-10 kHz and voltages in the range of about 100-1500 V are preferred.
  • a value document is generally designated by reference number 1 in FIG. 1, which is made of a plastic substrate, a paper substrate or another Carrier material consists. It does not matter whether the document of value 1 is on or off is built up in multiple layers.
  • an electrode arrangement 2 which consists of a plurality of interdigitated electrodes 2a, 2b, which form between them a meandering field gap 3 in which the electromagnetic alternating field is effective.
  • an electroluminescent layer 13 is applied or introduced, which at least is partially penetrated by the alternating electrical field, which in the Field gap 3 is generated.
  • the contacting of the electrode arrangement 2 is carried out by assigned Feeders 4,5, which are applied to the document of value 1, which Electrically conductive feeds with assigned electrode surfaces 6, 7 are connected.
  • the electromagnetic alternating field is applied to these electrode surfaces 6, 7 capacitively coupled in via an electrode arrangement 9 of a Readout device 8, which lies opposite the electrode surfaces 6, 7 Has electrode surfaces, which form the entire electrode arrangement 9 ( Figure 2).
  • one or more power supplies for. B. Batteries 10 are arranged, which are connected to an inverter / oscillator 11, the in turn via a connection arrangement 12 with the electrode arrangement 9 of the Readout device 8 is connected.
  • FIG. 2 shows further details of the invention. It is can first be seen in FIG. 2 that above the electroluminescent layer 13 an overlay film 14 is arranged, which is made of different materials can exist. Although a polycarbonate film is preferred, it can however any other materials are used, namely those which are suitable for a corresponding authenticity feature in or on themselves wear or train in themselves, with secondary coupling mechanisms can be used.
  • the layer mentioned can even consist of a conductive metal foil accordingly carries the authenticity feature.
  • Such an authenticity feature can e.g. B. by attaching appropriate structures on / in such Overlay film 14 can be achieved.
  • Such structures are - according to the general description section - as cloudiness or discoloration in the structure the overlay film 14 z. B. by laser treatment, X-ray treatment or Electrode beam treatment introduced.
  • Recesses 16 are made, as in Figure 3 is shown.
  • Such recesses 16 would not necessarily have to be through holes, but it can also be blind holes or irregularly shaped openings, e.g. B. diamond-shaped, square or rectangular openings.
  • lettering can of course be made directly from such recesses be formed.
  • a digitized signature can be used as lettering are formed by such recesses.
  • FIG 3 shows another embodiment.
  • the overlay film 14 is provided with recesses 16, wherein in addition on the recesses 16 Lenses 22 are applied.
  • the function and manufacture of these lenses were explained in detail in the general description section.
  • Electrode surface 6.7 used as a transponder coil or an additional Transponder coil inserts to an inductive, contactless coupling of the to allow electromagnetic alternating field.
  • electroluminescent layer not only as to apply a separate layer to the value document 1, but it is in the sense DE 43 10 082 A1 also possible to use this electroluminescent layer as Form electroluminescent film, being extruded or co-extruded A corresponding electroluminescence-active pigment fraction is introduced becomes.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Electroluminescent Light Sources (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Luminescent Compositions (AREA)
  • Laminated Bodies (AREA)
  • Printing Methods (AREA)
  • Adornments (AREA)
  • Materials For Medical Uses (AREA)
EP98943829A 1997-08-14 1998-08-04 Wert- und sicherheitserzeugnis mit lumineszenzelement Expired - Lifetime EP1003646B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02007941.4A EP1236584B2 (de) 1997-08-14 1998-08-04 Wert- und Sicherheitserzeugnis mit Lumineszenzelement

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19735293 1997-08-14
DE19735293A DE19735293C2 (de) 1997-08-14 1997-08-14 Wert- und Sicherheitserzeugnis mit Lumineszenzelement
PCT/EP1998/004837 WO1999008881A1 (de) 1997-08-14 1998-08-04 Wert- und sicherheitserzeugnis mit lumineszenzelement

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP02007941.4A Division EP1236584B2 (de) 1997-08-14 1998-08-04 Wert- und Sicherheitserzeugnis mit Lumineszenzelement
EP02007941.4 Division-Into 2002-04-09

Publications (2)

Publication Number Publication Date
EP1003646A1 EP1003646A1 (de) 2000-05-31
EP1003646B1 true EP1003646B1 (de) 2003-10-15

Family

ID=7838994

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02007941.4A Expired - Lifetime EP1236584B2 (de) 1997-08-14 1998-08-04 Wert- und Sicherheitserzeugnis mit Lumineszenzelement
EP98943829A Expired - Lifetime EP1003646B1 (de) 1997-08-14 1998-08-04 Wert- und sicherheitserzeugnis mit lumineszenzelement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP02007941.4A Expired - Lifetime EP1236584B2 (de) 1997-08-14 1998-08-04 Wert- und Sicherheitserzeugnis mit Lumineszenzelement

Country Status (17)

Country Link
EP (2) EP1236584B2 (pt)
JP (1) JP4554070B2 (pt)
KR (1) KR20010022914A (pt)
CN (1) CN1105654C (pt)
AT (2) ATE251998T1 (pt)
CA (1) CA2300971A1 (pt)
CO (1) CO4790195A1 (pt)
CZ (1) CZ295125B6 (pt)
DE (3) DE19735293C2 (pt)
DK (2) DK1003646T3 (pt)
ES (2) ES2209202T3 (pt)
HU (1) HUP0003606A3 (pt)
IL (1) IL134414A0 (pt)
PE (1) PE104099A1 (pt)
PL (1) PL193977B1 (pt)
PT (2) PT1236584E (pt)
WO (1) WO1999008881A1 (pt)

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DE102004022752B4 (de) 2004-05-07 2018-03-08 Bundesdruckerei Gmbh Vorrichtung zur Echtheitsprüfung eines Wert- oder Sicherheitsdokuments
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CN102114743B (zh) * 2009-12-31 2014-11-05 中国人民银行印制科学技术研究所 有价文件和鉴定该有价文件的方法
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DE102013207998A1 (de) * 2013-05-02 2014-11-06 Bundesdruckerei Gmbh Sicherheits- oder Wertprodukt mit elektrolumineszierendem Sicherheitselement und Verfahren zur Herstellung desselben
KR102416559B1 (ko) * 2017-07-07 2022-07-04 한국조폐공사 비가시 보안코드와 무접점 전력공급을 이용한 보안문서 및 이의 인증 방법
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CO4790195A1 (es) 1999-05-31
EP1236584B1 (de) 2008-07-09
JP2001514986A (ja) 2001-09-18
EP1003646A1 (de) 2000-05-31
EP1236584B2 (de) 2019-06-19
CZ2000520A3 (cs) 2000-12-13
ES2209202T3 (es) 2004-06-16
PE104099A1 (es) 1999-11-05
DE59809934D1 (de) 2003-11-20
DK1236584T3 (da) 2008-11-03
DE19735293A1 (de) 1999-02-18
ES2309121T3 (es) 2008-12-16
PT1003646E (pt) 2004-03-31
HUP0003606A2 (hu) 2001-02-28
EP1236584A3 (de) 2004-01-07
JP4554070B2 (ja) 2010-09-29
DE19735293C2 (de) 2003-06-12
PL339308A1 (en) 2000-12-04
ATE400446T1 (de) 2008-07-15
PL193977B1 (pl) 2007-04-30
KR20010022914A (ko) 2001-03-26
WO1999008881A1 (de) 1999-02-25
HUP0003606A3 (en) 2002-12-28
PT1236584E (pt) 2008-09-03
ATE251998T1 (de) 2003-11-15
CN1271310A (zh) 2000-10-25
IL134414A0 (en) 2001-04-30
DK1003646T3 (da) 2004-02-16
CN1105654C (zh) 2003-04-16
EP1236584A2 (de) 2002-09-04
DE59814253D1 (de) 2008-08-21
CZ295125B6 (cs) 2005-05-18
CA2300971A1 (en) 1999-02-25

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