EP4353488A2 - Support de données avec substrat composite ayant une zone de transparence de grande surface - Google Patents

Support de données avec substrat composite ayant une zone de transparence de grande surface Download PDF

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Publication number
EP4353488A2
EP4353488A2 EP23020459.6A EP23020459A EP4353488A2 EP 4353488 A2 EP4353488 A2 EP 4353488A2 EP 23020459 A EP23020459 A EP 23020459A EP 4353488 A2 EP4353488 A2 EP 4353488A2
Authority
EP
European Patent Office
Prior art keywords
data carrier
recess
substrate layer
area
inner substrate
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.)
Pending
Application number
EP23020459.6A
Other languages
German (de)
English (en)
Other versions
EP4353488A3 (fr
Inventor
Patrick Renner
Thomas Mang
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 Currency Technology GmbH
Original Assignee
Giesecke and Devrient Currency Technology 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
Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Publication of EP4353488A2 publication Critical patent/EP4353488A2/fr
Publication of EP4353488A3 publication Critical patent/EP4353488A3/fr
Pending 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
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—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
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives

Definitions

  • the invention relates to a data carrier with a composite substrate with a large-area see-through area.
  • the composite substrate contains two outer substrate layers made of a film material and an inner substrate layer made of a fiber material arranged between the outer substrate layers.
  • the invention also relates to a method for producing such a data carrier.
  • Data storage devices such as valuables or identification documents, as well as other valuable items such as branded goods, are often provided with security elements to ensure security. These allow the authenticity of the data storage device to be verified and also serve as protection against unauthorized reproduction. See-through security features such as see-through windows in banknotes are becoming increasingly attractive, as they are easy to recognize even for a layperson, but difficult to counterfeit.
  • the invention is based on the object of specifying a data carrier of the type mentioned at the beginning with a large, high-quality transparent area.
  • the data carrier should have an attractive visual appearance and a high level of durability in circulation.
  • the invention should also provide a method for producing such a data carrier.
  • the invention provides a data carrier with a composite substrate with a large-area see-through area, in which the composite substrate contains two outer substrate layers made of a film material and an inner substrate layer made of a fiber material arranged between the outer substrate layers.
  • the inner substrate layer contains a recess and a window area is formed on each of the outer substrate layers, the recess and the window areas at least partially overlapping are arranged to form the large-area see-through area of the data carrier.
  • the recess of the inner substrate layer is at least partially covered by a film element piece that is transparent or at least partially provided with optical properties.
  • a large-area see-through area can take up 35% or more, preferably 40% or more, particularly preferably 45% or more and in particular about 50% of the usable area of the composite substrate of the data carrier.
  • a large-area see-through area can have a surface area of up to h x b, where the height h can be up to 2 cm and the width b can be up to 5 cm.
  • the inner substrate layer can of course also contain more than one recess.
  • recess we will always refer to the recess below, although it is understood that this also includes the case of several recesses.
  • film element piece used expresses that the film element piece only takes up a relatively small part of the composite substrate.
  • the film element piece therefore strengthens and stabilizes the area of the inner substrate layer that is weakened by the recess.
  • the film element piece also leads to increased winding pressure in the area of the recess during the subsequent lamination step, in which the outer substrate films are laminated onto the inner substrate layer, so that the laminated films are optimally fixed during the curing phase of the adhesive.
  • Lamination errors such as bubbles, cloudiness, orange peel or fish eyes, and poor or blurred edge reproduction This reliably prevents any damage to the recess edge and achieves an attractive visual appearance of the large viewing area.
  • the film element piece is advantageously a film patch or a film strip. It is preferably provided that the film element piece completely covers and seals the recess in the inner substrate layer. It has proven to be particularly advantageous if the film element piece has essentially the same shape as the recess and in particular has a surface area that is between 3% and 30%, in particular between 5% and 15% larger than the surface area of the recess. It has also proven to be useful if the film element piece projects beyond the recess all the way around at every point by at least 2 mm, advantageously even by at least 3 mm, in order to enable secure application.
  • the recess in the inner substrate layer is not only covered on one side, but on both sides with a film element piece that is at least partially transparent or at least partially equipped with optical properties.
  • the two film element pieces can have the same or different sizes and can be designed the same or differently.
  • one of the film element pieces can be provided with microlenses.
  • one of the two film element pieces is transparent and serves to create a greater thickness of the see-through area, while the other film element piece is equipped with optical properties and contributes not only to the thickness of the see-through area, but also to its visual appearance.
  • the two film element pieces can advantageously be coordinated with one another in order to create a visual effect together.
  • one of the film element pieces can be equipped with an arrangement of microlenses and the second film element piece with an arrangement of associated microimages.
  • the film element pieces can also each contain parts of an overall motif which, when viewed from a predetermined viewing direction, complement one another to form the overall motif.
  • one or both of the outer substrate layers and/or the inner substrate layer are provided with optical properties in the see-through area.
  • the substrate layers can be provided with optical properties on one side or both sides. It goes without saying that the substrate layers, in particular the outer substrate layers, can also be provided with optical properties outside the see-through area.
  • the optical properties of a film element piece or a substrate layer can be achieved by color printing, effect printing, for example fluorescent printing, IR-absorbing printing, phosphorescent printing, metallic printing or pearlescent printing, by embossing, by metallization and/or by micro-optical effects,
  • effect printing for example fluorescent printing, IR-absorbing printing, phosphorescent printing, metallic printing or pearlescent printing
  • embossing by metallization and/or by micro-optical effects
  • a hologram, a micromirror arrangement or a lens arrangement may be provided.
  • the optical properties of a film element piece or a substrate layer can be produced by an additional film element, by a printing process, in particular screen printing, gravure printing, flexographic printing, offset printing, intaglio printing or indirect letterpress printing, and/or by a PVD process.
  • a printing process in particular screen printing, gravure printing, flexographic printing, offset printing, intaglio printing or indirect letterpress printing, and/or by a PVD process.
  • the composite substrate is embossed in the area of the recesses and has a visually visible and at the same time haptically perceptible effect there.
  • the inner substrate layer is advantageously a paper or nonwoven layer with a grammage between 30 g/m 2 and 120 g/m 2 , in particular between 60 g/m 2 and 80 g/m 2 .
  • the outer substrate layers are advantageously thin films with a thickness between 3 ⁇ m and 25 ⁇ m, preferably between 4 ⁇ m and 8 ⁇ m.
  • the outer substrate layers are particularly advantageously connected to the inner substrate layer via a laminating adhesive layer, which is advantageously formed by a 2-component adhesive consisting of a polyol and an isocyanate component.
  • the recess in the inner substrate layer is created by laser cutting.
  • the film element piece is preferably applied to the inner substrate layer by a heat-sealing step. If film element pieces are provided on both sides of the inner substrate layer, both film element pieces are preferably applied by a heat-sealing step.
  • the outer substrate layers are advantageously laminated onto the inner substrate layer. They are preferably connected via a laminating adhesive layer, which is formed by a 2-component adhesive consisting of a polyol and an isocyanate component.
  • the adhesive is advantageously used in an application weight of between 1 g/m 2 and 10 g/m 2 , in particular between 1 g/m 2 and 4 g/m 2 per side.
  • Figure 1 shows a schematic representation of a foil/paper/foil composite banknote 10, which, in addition to a banknote print 12 and other conventional security elements, has a large, transparent see-through area 14.
  • the see-through area 14 can be equipped with any optical properties, for example a semi-transparent motif 16 that is visible when viewed from above and through can be arranged in the see-through area 14.
  • the special feature of the composite banknote 10 is that the see-through area 14 is large, but still has high transparency, edge sharpness and stability. As briefly described at the beginning, with conventional foil-paper-foil composite banknotes, the implementation of large transparent windows is only possible with low optical quality and low circulation stability quality.
  • Fig. 2 shows the composite banknote 10 schematically in an exploded view.
  • the composite banknote 10 comprises a composite substrate 20 made of two outer substrate layers 22, 24, each consisting of a film material, and an inner substrate layer 26 made of a fiber material.
  • the outer substrate layers 22, 24 are each formed by a 6 ⁇ m thick PET film and the inner substrate layer 26 by a paper layer with a grammage of 70 g/m 2 .
  • the outer substrate layers 22, 24 are each provided with a banknote print 32, 34 on their outside in order to produce the desired appearance of the banknote when viewed from the front and back.
  • the banknote prints 32, 34 can be equipped with several security features in a manner known per se.
  • the composite banknote 10 contains the large-area see-through area 14 with optical properties.
  • a large-area recess 28 was made in the inner paper layer 26 by laser cutting, and the banknote prints 32, 34 are overlapping on the outer substrate layers 22, 24. with the recess 28 to form window areas 36 and 38 respectively, which together with the recess 28 form the see-through area 14 of the composite banknote 10.
  • the optical properties of the see-through region 14 are provided by a semi-transparent print 40 on one of the films 22, 24.
  • the recess 28 of the inner paper layer 26 is sealed with a transparent film patch 50, which was applied to the paper layer 26 by means of a heat-sealing application before the substrate layers 22, 24, 26 were laminated together.
  • the film patch 50 has the same, for example elliptical, shape as the recess 28, but has an area that is approximately 20% larger than the recess in order to be able to cover it completely.
  • an adhesive 52 of the type of a fast-reacting 2-component polyurethane i.e. an adhesive 52 with an isocyanate and a polyol component that primarily react with each other.
  • the adhesive 52 can be applied in particular in an application weight of 1 g/m 2 to 2 g/m 2 .
  • the film patch 50 leads to a stabilization of the paper layer 26, which has been weakened by the recess 28, for the further processing.
  • the film patch 50 causes a local increase in the winding pressure in the window track of the laminated web when the substrate layers 22, 24, 26 are laminated together.
  • the films 22, 24 in the window track are 52 is optimally fixed. In combination with the appropriately selected adhesive 52, this reliably prevents laminating errors such as bubbles, cloudiness, orange peel or fish eyes as well as poor or blurred edge reproduction of the recess edge.
  • the internal foil patch 50 significantly increases the circulation stability of the composite banknote 10 compared to conventional designs without a foil patch.
  • the film patch 50 can be easily printed or otherwise provided with optical properties, thus also increasing the design variants for the design of the see-through area 14.
  • a composite banknote 60 according to a further embodiment of the invention is shown in Fig.3 , also shown in exploded view.
  • the recess 28 of the inner paper layer 26 is sealed on both sides with a foil patch 50 or 54.
  • the additional foil patch 54 can have optical properties and can in particular serve to further stabilize the laser-cut recess 28.
  • the visual appearance of the see-through area is determined by the design of the foil patches 50, 54, for example by a print on one or both foil patches.
  • the aim of using a second foil patch 54 can also be to further thicken the see-through area.
  • Micro-optical security features often have a defined minimum thickness that exceeds the thickness of just one foil patch.
  • the embodiment of the Fig.4 shows a modification of the design of the Fig.3 .
  • the composite banknote 70 of the Fig.4 the second foil patch 56 is not applied to the inner paper layer 26, but overlaps the recess 28 on the outer substrate foil 24.
  • the additional thickness of the substrate foil 24 thus creates an even greater distance between the two foil patches 50, 56, such as may be required for a micro-optical security feature.
  • the first foil patch 50 can be equipped with an arrangement of microlenses and the second foil patch 54 with an arrangement of microimages, which are arranged at a distance of a lens focal length from the plane of the first foil patch 50.
  • one or both of the outer substrate films 22, 24 and/or the inner paper layer 26 in the see-through area 14 can be provided with optical properties on one or both sides.
  • the film patch 50 and/or the film patch 54 or 56 can be printed or otherwise provided with optical properties.

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  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)
EP23020459.6A 2022-10-06 2023-10-05 Support de données avec substrat composite ayant une zone de transparence de grande surface Pending EP4353488A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022125863.7A DE102022125863A1 (de) 2022-10-06 2022-10-06 Datenträger mit Verbundsubstrat mit großflächigem Durchsichtsbereich

Publications (2)

Publication Number Publication Date
EP4353488A2 true EP4353488A2 (fr) 2024-04-17
EP4353488A3 EP4353488A3 (fr) 2024-05-01

Family

ID=88291319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23020459.6A Pending EP4353488A3 (fr) 2022-10-06 2023-10-05 Support de données avec substrat composite ayant une zone de transparence de grande surface

Country Status (2)

Country Link
EP (1) EP4353488A3 (fr)
DE (1) DE102022125863A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2663468C (fr) 2006-09-15 2016-06-28 Securency International Pty Ltd Dispositifs de securite a encre en relief sechable par rayonnement destines a des documents securises
DE102010019194A1 (de) * 2010-05-04 2011-11-10 Giesecke & Devrient Gmbh Wertdokument mit Ausnehmung
DE102011114211A1 (de) * 2011-09-23 2013-03-28 Giesecke & Devrient Gmbh Wertdokumentsubstrat, Folienverbund, Verfahren zum Herstellen derselben und Wertdokument
MA42901A (fr) 2015-07-10 2018-05-16 De La Rue Int Ltd Substrats de sécurité, dispositifs de sécurité et leurs procédés de fabrication
DE102015015908A1 (de) 2015-12-09 2017-06-14 Giesecke & Devrient Gmbh Folien-Verbundsubstrat mit taktil erfassbaren Element
DE102016109654A1 (de) 2016-05-25 2017-11-30 Ovd Kinegram Ag Bogen für ein Sicherheitsdokument, Verfahren zur Herstellung des Bogens und daraus hergestelltes Sicherheitsdokument
EP3401114A1 (fr) * 2017-05-12 2018-11-14 KBA-NotaSys SA Élément de sécurité ou document et son procédé de production

Also Published As

Publication number Publication date
DE102022125863A1 (de) 2024-04-11
EP4353488A3 (fr) 2024-05-01

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