EP3521052A1 - Procédé de fabrication d'un matériau de transfert d'éléments de sécurité et matériau de transfert d'éléments de sécurité - Google Patents

Procédé de fabrication d'un matériau de transfert d'éléments de sécurité et matériau de transfert d'éléments de sécurité Download PDF

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Publication number
EP3521052A1
EP3521052A1 EP19000050.5A EP19000050A EP3521052A1 EP 3521052 A1 EP3521052 A1 EP 3521052A1 EP 19000050 A EP19000050 A EP 19000050A EP 3521052 A1 EP3521052 A1 EP 3521052A1
Authority
EP
European Patent Office
Prior art keywords
transfer
security element
layer
security
layer composite
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
EP19000050.5A
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German (de)
English (en)
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EP3521052B1 (fr
Inventor
Christian Fuhse
Josef Schinabeck
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
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Giesecke and Devrient Currency Technology GmbH
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Publication of EP3521052A1 publication Critical patent/EP3521052A1/fr
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Publication of EP3521052B1 publication Critical patent/EP3521052B1/fr
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    • 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
    • B42D25/30—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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • 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
    • B42D25/355—Security threads
    • 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
    • B42D25/364—Liquid crystals
    • 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
    • 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
    • B42D25/45—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 security element transfer material having a security element layer composite, which has a plurality of layers, and a temporary support, which is detachably connected to the security element layer composite, for transferring security elements to a valuable article, such as a security paper, a value document or a brand name, to authenticate the valuables.
  • the invention also relates to methods of making the security element transfer material.
  • Valuables such as branded goods or documents of value, in particular banknotes, are often provided with security elements which allow verification of the authenticity of the object of value and at the same time serve as protection against unauthorized reproduction.
  • the security elements used for this purpose are not provided individually but in the form of transfer belts with a plurality of security elements, each designed as a transfer element.
  • Characteristic of transfer belts is that the security elements are prepared on a carrier layer, wherein the order of the layers of the transfer elements must be reversed, as it should be present later on the object to be protected.
  • the carrier layer is typically removed from the layer structure of the security elements during transfer.
  • the transfer tapes On the opposite side of the carrier layer, the transfer tapes have an adhesive layer, usually of a heat-sealing adhesive, which melts during the transfer of the security elements and glued the security elements with the object to be secured.
  • the transfer tape is placed on the article with the heat seal adhesive layer and pressed by means of a heated transfer punch or a transfer roller and in the outline of the heated transfer punch transferred to the object.
  • Transfer elements, transfer belts and the transfer of transfer elements to target substrates are for example in EP 0 420 261 B1 and in the WO 2005/108108 A2 described.
  • the individual transfer elements can already be prefabricated in the desired outline shape on the transfer belt.
  • the prefabrication of separate individual security elements is particularly useful if the security elements have a layer structure which makes exact separation of the entire layer structure during the transfer process difficult. This is usually the case when the layer structure of the security element to be transmitted contains a carrier substrate, for example a plastic film.
  • Support substrates within the layer construction of security elements are required when the security elements have to be made particularly stable, for example when they have to be self-supporting, because they are to be used for closing a through opening in the object to be secured. Depending on the object and size of the opening to be closed, high demands can be placed on the stability of the security elements.
  • Banknotes for example, are exposed to high stresses during their orbit, are tapped, kinked and may be exposed to moisture.
  • the security elements must be able to withstand these stresses as well as the banknote paper itself, since otherwise there would be the danger that after a certain circulation time the through opening in the banknote would be exposed.
  • FIG. 5 illustrates that of the prior art WO 2010/031543 A1 Known procedure in which the patch forms or patch outlines 52 are punched in the transfer film composite designated by the reference number 51 with a punch. Thereafter, the step of weeding 56 takes place, ie the part of the transfer film composite which lies outside the patch outline 52 is peeled off. In this way, initially, as an intermediate product, a wide transfer belt 53 is obtained on which the individual transfer elements 54 are prefabricated in the desired outline shape.
  • the wide transfer belt 53 is subsequently cut into individual, narrow transfer belts, namely strips 55, wherein a patch 54 is arranged along the width of the strips 55.
  • the strips 55 can then be wound up on spools. Later, in the course of producing a value document, the individual transfer patches can be applied or applied to the respective value document substrates by the strips 55 wound on the coils.
  • the grid to be removed must have sufficient stability, ie a certain minimum width between the resulting transfer elements or transfer patches is required, so that the grid does not tear in the step of weeding.
  • the transfer elements are 15 mm wide, the result is a strip width of 18 mm, of which only 15 mm are actually used.
  • the object of the present invention is therefore to avoid the disadvantages of the prior art and to find a way to reduce costs in the provision of a security element transfer material in the form of a continuous material. In particular, should be obtained from the same amount of film ultimately a larger amount of transfer elements.
  • weeding also as “scarfing” because the excess security-element laminar material forms a continuous grid (with recesses in the form of the security elements remaining on the temporary carrier) which is analogous to a separation coil can be deducted from the temporary carrier or removed or removed.
  • the security element transfer material is typically a continuous material, usually a belt several hundred meters in length and a width of a few millimeters / centimeter to several meters.
  • the security element transfer material has a security element layer composite, ie the actual security element material, and a temporary carrier, ie the material on which the security elements are "stored".
  • the security element laminate has a plurality of layers, including, optionally, a permanent support substrate, typically a plastic film, a feature layer, and a peek layer.
  • a permanent support substrate typically a plastic film
  • a feature layer typically a plastic film
  • a peek layer typically a plastic film
  • the security element layer composite can also contain a plurality of optional permanent carrier substrates and / or multiple feature layers.
  • the security element layer network usually contains several feature layers.
  • a feature layer (or functional layer) is a layer that has visually detectable or machine detectable features.
  • Examples which may be mentioned are metal layers, layers of metallic effect paints, layers with color pigments or fluorescent pigments, liquid crystal layers, coatings with a color shift effect, layers with matt structures, as described, for example, in US Pat WO 2007/107235 A1 Colored printed motif layers, layer combinations such as a color-shaded layer with a color shift effect, layers with magnetic pigments, etc. are not disclosed.
  • the materials, layer sequences and types of application are not limited in any way and basically all materials and methods are applicable a person skilled in the field of security elements are known.
  • the term "permanent" carrier substrate expresses that this carrier substrate is not removed during the transfer of the security element on an object to be secured, but rather is part of the security element layer composite and is transferred to the object to be secured.
  • the security elements can be used, for example, to cover through openings, wherein the presence of an opening should remain recognizable, it is preferred to use transparent or translucent permanent carrier substrates.
  • films of polyester, such as polyethylene terephthalate, of polyethylene or polypropylene are suitable.
  • the viewing layer may be identical to a feature layer or the permanent carrier substrate.
  • the security element laminate is connected to a temporary support either directly or by means of a release layer.
  • the release layer is conventional and facilitates the detachment of the security elements from the temporary carrier during the transfer process to a valuable item.
  • the temporary support is located on the side of the security element layer composite facing an observer after the transmission of the security elements.
  • the temporary carrier may in particular consist of a carrier layer composite, as in the WO 2010 / 031543A1 is described.
  • the cutting of the outline shapes of the security elements is preferably carried out by means of a laser, as this allows the best precision to be achieved.
  • cutting generally means all methods known to a person skilled in the art for delimiting the individual security elements from the endless material, for example punching.
  • the resulting transfer elements or patches are provided with a heat seal adhesive and under pressure and at a temperature above 50 ° C, often above 90 ° C or even above 110 ° C on a value document substrate, such as a banknote substrate (For example, paper, a polymer substrate or a paper / foil / paper composite or foil / paper / foil composite) apply or apply.
  • a value document substrate such as a banknote substrate (For example, paper, a polymer substrate or a paper / foil / paper composite or foil / paper / foil composite) apply or apply.
  • the adhesive for bonding to the substrate may be UV-curing.
  • the application can be carried out as a sheet application or roll-to-roll.
  • the security element transfer material according to the invention is basically suitable for product security of goods of any kind, in particular for the authenticity assurance of security papers and value documents.
  • security paper is understood to mean a precursor that can not yet be processed to a value document, which besides the security element can have further authenticity features.
  • Security paper is usually available as a continuous material and will be processed at a later date.
  • Value documents are in particular banknotes, certificates, checks, identity documents, identity cards, credit cards and the like.
  • the security element transfer material according to the invention which has security elements which have a particular stability due to their optional permanent carrier substrate, is used to close through openings in value documents.
  • the permanent carrier substrate of the security elements is transparent, the functional layers (feature layers) can be designed such that a viewer can see through the security element at least in some areas.
  • Fig. 1 shows a security element transfer material of the prior art, shown in cross section along the line AA 'of Fig. 2 ,
  • the security element transfer material has a temporary carrier 16 and a security element layer composite 15 consisting of the feature layers 4, 5 and 2, the permanent carrier substrate 3, an adhesive layer 6, a primer layer 7 and a heat-seal adhesive layer 8.
  • the feature layer 4 is the Singh für, ie after the transfer of security elements or transfer items on valuables, it is facing the viewer.
  • the layer 4 here is a liquid crystal layer applied over part of the area, the areas 4 'being the liquid crystal areas.
  • Another feature layer is a metallized hologram, consisting of the embossing lacquer layer 5 and the vapor-deposited metal layer 2.
  • the metal layer 2 has recesses 2 ', which form a negative writing.
  • the metallization 2 is provided substantially only in the areas of the security element transfer material constituting the later security elements.
  • the security element layer composite 15 and the temporary carrier 16 are connected by means of a release layer 9.
  • the lines 20 and 20 indicate how the security element laminate is cut to pre-cut the security elements in their outline shapes. As can be seen, the cuts 20 and 20 'penetrate into the plastic film forming the temporary support 16. The plastic film is destabilized by the cuts and can easily tear at the points of incisions with slight strains, as they are practically unavoidable in the course of the transfer process of the security elements.
  • FIG. 2 In plan view, a security element transfer material in which the security elements are precut is shown.
  • This may be a prior art security element transfer material 1, as shown in FIG Fig. 1 shown as a cross section of a portion along the line AA ', or to another security element transfer material 1 of the prior art, as in FIGS. 4a to 4d , each represented as a cross section of a portion along the line AA 'act.
  • Fig. 3 is a plan view of a document of value, which has a security element 10 of a security element transfer material 1.
  • the FIGS. 2 and 3 will be explained later in more detail.
  • Fig. 4a shows a cross section through a portion of another security element transfer material 1 of the prior art along the line AA 'of Fig. 2 ,
  • the illustration corresponds to the representation of the security element transfer material of the prior art of Fig. 1
  • the structure of the security element laminate 15 is the same as that in FIG Fig. 1 illustrated security element transfer material of the prior art.
  • the security element layer composite 15 is connected to a temporary carrier 16 by means of a release layer 9.
  • this is not a single film, but a carrier layer composite of a first temporary carrier substrate 17 and a second temporary carrier substrate 18, which are non-detachably connected by means of an adhesive layer 19.
  • the two temporary carrier substrates are plastic films, for example films made of PET, and the adhesive layer 19 consists of a cationic radiation-curable adhesive, for example UVCS0002 from XSYS.
  • 2K PU systems are particularly suitable as adhesives.
  • the security element layer composite 15 has a total thickness of about 25 microns
  • the PET films 17 and 18 each have a thickness of about 12 microns
  • the adhesive layer 19 has a thickness of about 3 microns in the dry state.
  • FIGS. 4b to 4d each show the same view as Fig. 4a but in other processing states of the security element transfer material 1.
  • Fig. 4b shows the security element transfer material, after using a CO 2 laser (wavelength 10600 nm), the outline forms 21 (see Fig. 2 ) of the later security elements 10 were cut into the security element layer composite 15.
  • the cuts are shown as lines 20, 20 '.
  • the cut 20 cuts through not only the security element layer composite 15 but also the first temporary carrier substrate 17, and at the point 20 'the cut penetrates far into the adhesive layer 19.
  • the incision 20 'in the adhesive layer 19 is completely cured.
  • the cuts 20 and 20 'in the temporary carrier substrate 17 are still clearly visible, but if the cutting of the outline shapes occurs early enough, the adhesive of the layer 19 is still sufficiently fluid and reactive that it at least a little way into the cuts of the temporary carrier substrate 17 penetrates and glued the cuts.
  • Fig. 4d On both sides of the gap 22 are security elements or transfer elements 10.
  • the security elements or transfer elements 10 in Fig. 2 represented as their outlines 21, now represent "islands" on the temporary support 16. The islands are surrounded by areas 22 where there is no longer any security element laminar material.
  • Fig. 2 shows the security element transfer material 1 as an endless belt, in which there is only one security element in the direction of the width.
  • Fig. 3 shows a banknote 30, which has a through opening 31.
  • the through opening 31 is closed with a foil patch 10, which has a larger area than the through opening 31.
  • the foil patch 10 is a security element of a security element transfer material 1, as for example in the FIGS. 4a to 4d is shown.
  • the Banknote 30 still another security element, the security thread 40, on.
  • the security elements 10 must be prefabricated in the security element transfer material 1 in the appropriate sizes and distances.
  • a security element 10 Under elevated temperature and elevated pressure, a security element 10 is glued to a banknote 30 in each case.
  • the hatched area 4 represents the area of the security element 10 in which liquid crystal material is located.
  • the regions 2 ' are the recesses in the metallization 2, through which a viewer can essentially see through the security element 10.
  • FIG. 5 illustrates those in the prior art (see for example the WO 2010/031543 A1 ) known generation of an example in the FIG. 2 shown security element transfer material in the form of an endless belt 55, in which in the direction of the width in each case only one security element or transfer element (also referred to herein as transfer patch) 54 is located.
  • transfer patch also referred to herein as transfer patch
  • the endless belt 51 corresponds to the example in the FIG. 1 or in the Figure 4c shown, cut security element layer composite, in which the security elements are pre-cut in their outline shapes.
  • the step of derangement in which the material between the cuts 20 and 20 ', is removed, whereby gaps are formed in the security element laminate (this state is in Fig. 4d shown).
  • security elements or transfer elements 54 On both sides of the gap are security elements or transfer elements 54.
  • the security elements 54 now represent islands on the temporary support. The islands are surrounded by areas where there is no longer any security element laminar material.
  • the wide endless belt 53 namely the temporary carrier on which six rows of security elements or transfer elements 54 are arranged in parallel, is cut into individual, strip-shaped endless belts 55 (see the block arrow 57).
  • the strip-shaped endless belts 55 are then wound onto spools.
  • the transfer elements 54 arranged on the wound-up strips 55 can later be applied from the strips 55, for example, to banknote paper.
  • the weeding 56 is associated with a relatively high material loss.
  • the grid (namely that in the FIG. 1 or the Figure 4c shown, between the cuts 20 and 20 'to be removed material) must have sufficient stability and a certain minimum width between the security elements or transfer elements, so that it does not crack during Weeding 56.
  • FIG. 6 illustrates those in the prior art (see for example the WO 2010/031543 A1 ) known generation of an example in the FIG. 2 shown security element transfer material in the form of an endless belt 65, wherein in the direction of the width only one security element or transfer element (also referred to herein as transfer patch) 64 'is located.
  • the transfer element group 64 arranged on a temporary support 63.
  • the wide Endless belt 63 namely the temporary carrier on which at least two security elements or transfer elements 64 are arranged parallel in a non-cut, interconnected state, cut into individual, strip-shaped endless belts 65 (see the block arrow 67).
  • the strip-shaped endless belts 65 are then wound up on spools.
  • the transfer elements 64 'arranged on the wound-up strips 65 can later be applied, for example, to the banknote paper by the strips 65.
  • the weeding 66 is associated with a relatively small material loss.
  • the transfer patch film 65 obtainable by the method according to the invention is, in particular, such that the transfer elements or transfer patches 64 'are cut flush with the temporary carrier film in the transverse direction and the regions between the transfer elements 64' are de-meshed in the running direction of the endless film.
  • the transfer elements 64 ' preferably have at least one optically variable element.
  • the inventive transfer element production can largely according to the prior art, see for example the WO 2010/031543 A1 , known methods take place.
  • the security element layer composite arranged on the temporary support can in particular have optically variable security features, such as embossed holograms, volume holograms, metallic and / or color-changeable coatings, micromirror arrangements and / or sub-wavelength structures, in particular Subwavelength grating for the production of structural colors or moth eyes, have.
  • microlenses alone or in combination with associated microimages, for example for the production of a moire magnifier, on a transfer element according to the invention.
  • exemplary slide assemblies are eg from the WO 2017/035437 A1 known.
  • the transfer elements obtainable according to the invention do not necessarily have to be a permanent stabilizing film (see, for example, the permanent carrier substrate 3 in FIGS FIGS. 1 . 4a-4d ), ie the security element layer composite merely optionally includes a permanent carrier substrate.
  • a permanent stabilizing film may be advantageous, because it gives a certain degree of stability to tearing off a layer to be peeled off when weeding it out.
  • the remaining transfer elements however, such a permanent stabilizing film is associated with disadvantages.
  • the thickness of the transfer elements increases, which may be undesirable when used on banknotes, for example.
  • a security patch applied to a banknote in view of protection against manipulation and forgery, only a slight stability against tearing of the security patch in the event of a manipulative detachment from the banknote may be desired.
  • a separate, stabilizing film 71 is applied only in the areas which are later de-meshed in the step of weeding.
  • This procedure is based on the FIG. 7 explained in more detail:
  • endless belt 65 is based on the wider endless belt 61, in which the patch molds 62 of the later, juxtaposed and initially in non-incised state interconnected security elements or transfer elements are punched, namely in the form of an upper and a lower contour and two lateral Outlines, where the four outlines surround the transfer element group (the outlines are shown in dashed lines).
  • a separate, stabilizing film 71 which has recesses in the regions of the security element layer composite which are not to be removed, namely the transfer element regions to be produced.
  • the separate, stabilizing film 71 is then laminated register-accurate on the endless belt 61.
  • the lamination can be effected in particular by means of an adhesive layer located on the separate, stabilizing film 71.
  • the dimensions of the recesses of the separate film 71 are chosen to be slightly larger than the dimensions of the areas of the security element layer composite that are not to be removed, namely the transfer element areas to be produced, so that, when weeding out, remnants of the separate film (eg Adhesive residues) is avoided at the transfer elements to be generated.
  • the lamination composite 72 produced from the endless belt 61 and a separate stabilizing film 71 is shown, the dimensions of the recesses of the separate film 71 being slightly greater than the dimensions of the non-removable regions of the security element laminate, namely the transfer element regions to be produced, are selected.
  • the stabilizing film 71 When wecking in the FIG. 8 shown Kaschierverbunds 72, the stabilizing film 71 is peeled off and with it the underlying areas of the security element layer compound outside the desired patch shapes.
  • the transfer elements are, as it were, de-meshed in strips transversely to the running direction of the endless belt, wherein at least two of the later transfer elements remain connected to one another in a non-incised state in the transverse direction (see in FIGS FIG. 9 , left, the transfer element groups 64 arranged on the temporary support 63).
  • the wide endless belt 63 namely the temporary carrier on which at least two security elements or transfer elements are arranged in parallel in a non-cut, interconnected state 64, cut into individual, strip-shaped endless belts 65 (see the block arrow 67).
  • the strip-shaped endless belts 65 are then wound up on spools.
  • the transfer elements 64 'arranged on the wound-up strips 65 can later be applied, for example, to the banknote paper by the strips 65.
  • the recesses in the separate, stabilizing film 71 may be smaller than the later patches instead of larger. This results in the later patches a "frame" of the stabilizing film 71. Also, the stability of the later patches can be reduced and eg the protection against manipulation, in particular a detachment of a patch from a banknote and applying the detached patch to a counterfeit Banknote, increase.
  • FIGS. 10 to 12 Another method for weeding is based on the FIGS. 10 to 12 explained.
  • the step of weeding out in which the excess material of the security element layer composite outside the transfer element groups is removed, takes place by means of register-accurate lamination of a separate, full-surface, ie no recesses, film 81 on the security element layer composite, wherein the separate film 81 is provided with adhesive only in the areas to be removed of the security element layer composite.
  • the areas provided with adhesive are in the FIG. 10 simplified illustrated by the solid line 82.
  • the dimensions of the non-adhesive regions of the separate film 81 are chosen to be slightly larger than the dimensions of the non-removable regions of the security element layer composite, namely the transfer element regions to be created, so that the remaining material remains in the de-jitter separate film (eg adhesive residues) is avoided on the transfer elements to be generated.
  • the lamination composite 83 produced from the endless belt 61 and the separate, stabilizing film 81 is shown.
  • the separate film 81 is provided with adhesive only in the areas to be removed of the security element layer composite.
  • the stabilizing film 81 When wecking in the FIG. 11 shown laminated composite 83, the stabilizing film 81 is peeled off and with it the underlying areas of the security element layer compound outside the desired patch shapes.
  • the transfer elements are, as it were, de-meshed in strips transversely to the running direction of the endless belt, wherein at least two of the later transfer elements remain connected to one another in a non-incised state in the transverse direction (see in FIGS FIG. 12 , left, the transfer element groups 64 arranged on the temporary support 63).
  • the wide endless belt 63 namely the temporary carrier on which at least two security elements or transfer elements are arranged in parallel in a non-cut, interconnected state 64, cut into individual, strip-shaped endless belts 65 (see the block arrow 67).
  • the strip-shaped endless belts 65 are then wound up on spools.
  • the transfer elements 64 'arranged on the wound-up strips 65 can later be applied, for example, to the banknote paper by the strips 65.
  • the method shown initially starts from the wide endless belt 61, wherein no patch forms 62 are punched or cut.
  • the un-punched endless belt 61 is, as in the FIG. 10 shown, glued to the separate, provided with adhesive regions 82 film 81 to a laminated composite. Only then is the punching or cutting in of patch outlines (in the FIG. 11 shown with a dashed line). Above the resulting patches the non-bonded stabilizing film 81 is removed, for example by suction or by blowing away by means of compressed air. Then, the step of weeding and the further processing to individual transfer belts, as in the FIGS. 11 to 12 shown.
  • the bond between the transfer layers to be removed and the separate stabilizing film may be increased by e.g. is melted by heating a present on the transfer layers heat seal adhesive and provides for an additional bond between the transfer layers and the stabilizing, separate film.
  • the film 61 shown on the left can be relatively difficult to entangle, in particular because the grid, which is very narrow in the longitudinal direction or running direction of the endless belt 61, may tear easily in the separation winding.
  • the grid which is very narrow in the longitudinal direction or running direction of the endless belt 61, may tear easily in the separation winding.
  • a suitable angle ⁇ which is selected in particular in a range of 5 ° to 85 °, preferably in a range of 15 ° to 75 °, more preferably in a range of 30 ° to 60 ° and particularly preferably at 45 °.
  • FIG. 14 shows a film 93, which according to an alternative variant in the FIG. 6 (Middle) or in the FIG. 9 (left) or in the FIG. 12 , (left) can replace film 63 shown.
  • the wide endless belt 93 namely the temporary carrier, on the successive groups of three security elements or transfer elements 94th are arranged parallel in a non-cut, interconnected state, can be cut in a further step to individual, strip-shaped endless belts.
  • FIG. 15 shows a further foil 103, which according to an alternative variant in the FIG. 6 (Middle) or in the FIG. 9 (left) or in the FIG. 12 , (left) can replace film 63 shown.
  • the wide endless belt 103 namely the temporary carrier, on which successive groups of three security elements or transfer elements 104 are arranged parallel in a non-incised, interconnected state, can be cut in a further step to individual, strip-shaped endless belts.
  • the arrangement of the patches does not have to be exactly perpendicular to the running direction of the endless belt (as in the FIG. 6 (Center), FIG. 9 (Left), FIG. 12 (left), in the FIG. 14 and in the FIG. 15 shown), but adjacent patches can also be offset in the direction of travel, see for example the FIG. 16 ,
  • the FIG. 16 shows a wide endless belt 113, namely a temporary carrier, are arranged on the successive groups of three security elements or transfer elements 114 in parallel in a non-cut, interconnected state.
  • the endless belt 113 can be cut in a further step to individual, strip-shaped endless belts.
  • the transfer elements 114 are offset or inclined in the running direction of the endless belt 113. In this way, an even greater variety of patches can be created with respect to the patch outline.

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EP19000050.5A 2018-02-05 2019-01-29 Procédé de fabrication d'un matériau de transfert d'éléments de sécurité et matériau de transfert d'éléments de sécurité Active EP3521052B1 (fr)

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DE102018000920.4A DE102018000920A1 (de) 2018-02-05 2018-02-05 Verfahren zum Herstellen eines Sicherheitselement-Transfermaterials und Sicherheitselement-Transfermaterial

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Cited By (2)

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EP3828000A1 (fr) * 2019-11-29 2021-06-02 IDEMIA France Document sécurisé et procédé de fabrication d'un document, concernant un'image personnalisée formée à partir d'un hologramme métallique
RU2811489C1 (ru) * 2019-11-29 2024-01-12 ИДЕМИА Франс Защищенный документ с персонализированным изображением, выполненным при помощи металлической голограммы, и способ его изготовления

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DE102022001915A1 (de) 2022-06-01 2023-12-07 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement-Transfermaterial zur Übertragung von Sicherheitselementen mit mikrooptischem Echtheitsmerkmal und Verfahren zu seiner Herstellung

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WO2005108108A2 (fr) 2004-04-30 2005-11-17 Giesecke & Devrient Gmbh Element de securite et son procede de production
WO2007107235A1 (fr) 2006-03-17 2007-09-27 Giesecke & Devrient Gmbh Image tramée
EP1897700A2 (fr) * 2006-09-08 2008-03-12 De La Rue International Limited Procédé de fabrication d'un élément de sécurité
WO2010031543A1 (fr) 2008-09-17 2010-03-25 Giesecke & Devrient Gmbh Matériau de transfert d'élément de sécurité à support multicouche
WO2013190048A1 (fr) 2012-06-20 2013-12-27 Leonhard Kurz Stiftung & Co. Kg Procédé de transfert d'une partie décorative d'un film d'estampage
WO2015173753A1 (fr) * 2014-05-16 2015-11-19 Arjowiggins Security Procede de fabrication d' un element de securite
DE102015006854A1 (de) * 2015-05-27 2016-12-01 Giesecke & Devrient Gmbh Appliziervorrichtung
WO2017035437A1 (fr) 2015-08-27 2017-03-02 Crane Security Technologies, Inc. Procédé de transfert simple ou double pour préparer et transférer des éléments uniques définis nettement sur des objets à protéger

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EP0420261B1 (fr) 1989-09-28 1999-03-24 GAO Gesellschaft für Automation und Organisation mbH Support d'information avec élément optique variable et son procédé de fabrication
WO2005108108A2 (fr) 2004-04-30 2005-11-17 Giesecke & Devrient Gmbh Element de securite et son procede de production
WO2007107235A1 (fr) 2006-03-17 2007-09-27 Giesecke & Devrient Gmbh Image tramée
EP1897700A2 (fr) * 2006-09-08 2008-03-12 De La Rue International Limited Procédé de fabrication d'un élément de sécurité
WO2010031543A1 (fr) 2008-09-17 2010-03-25 Giesecke & Devrient Gmbh Matériau de transfert d'élément de sécurité à support multicouche
WO2013190048A1 (fr) 2012-06-20 2013-12-27 Leonhard Kurz Stiftung & Co. Kg Procédé de transfert d'une partie décorative d'un film d'estampage
WO2015173753A1 (fr) * 2014-05-16 2015-11-19 Arjowiggins Security Procede de fabrication d' un element de securite
DE102015006854A1 (de) * 2015-05-27 2016-12-01 Giesecke & Devrient Gmbh Appliziervorrichtung
WO2017035437A1 (fr) 2015-08-27 2017-03-02 Crane Security Technologies, Inc. Procédé de transfert simple ou double pour préparer et transférer des éléments uniques définis nettement sur des objets à protéger

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Publication number Priority date Publication date Assignee Title
EP3828000A1 (fr) * 2019-11-29 2021-06-02 IDEMIA France Document sécurisé et procédé de fabrication d'un document, concernant un'image personnalisée formée à partir d'un hologramme métallique
WO2021105582A1 (fr) * 2019-11-29 2021-06-03 Idemia France Un document sécurisé avec une image personnalisee formee a partir d'un hologramme metallique et son procede de fabrication
FR3103736A1 (fr) * 2019-11-29 2021-06-04 Idemia France Image personnalisée formée à partir d’un hologramme métallique
CN114728531A (zh) * 2019-11-29 2022-07-08 法国埃迪米亚公司 具有由金属全息图形成的个性化图像的安全文件及其产生方法
CN114728531B (zh) * 2019-11-29 2023-06-23 法国埃迪米亚公司 具有由金属全息图形成的个性化图像的安全文件及其产生方法
RU2811489C1 (ru) * 2019-11-29 2024-01-12 ИДЕМИА Франс Защищенный документ с персонализированным изображением, выполненным при помощи металлической голограммы, и способ его изготовления
JP7481443B2 (ja) 2019-11-29 2024-05-10 アイデミア フランス 金属ホログラムから形成される個人化画像を有するセキュリティ文書及びその製作方法

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