DE102007040865A1 - Security paper - Google Patents

Security paper

Info

Publication number
DE102007040865A1
DE102007040865A1 DE200710040865 DE102007040865A DE102007040865A1 DE 102007040865 A1 DE102007040865 A1 DE 102007040865A1 DE 200710040865 DE200710040865 DE 200710040865 DE 102007040865 A DE102007040865 A DE 102007040865A DE 102007040865 A1 DE102007040865 A1 DE 102007040865A1
Authority
DE
Germany
Prior art keywords
security paper
adhesive layer
characterized
area
film 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.)
Pending
Application number
DE200710040865
Other languages
German (de)
Inventor
Theodor Dr. Burchard
Manfred Dr. Heim
Reinhard Plaschka
Peter Schiffmann
Karin Winkler
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
Family has litigation
Priority to DE102007021391 priority Critical
Priority to DE102007021391.5 priority
Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Priority to DE200710040865 priority patent/DE102007040865A1/en
Publication of DE102007040865A1 publication Critical patent/DE102007040865A1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39809760&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE102007040865(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application status is Pending legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • 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
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29Securities; Bank notes
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42Ribbons or strips

Abstract

The invention relates to a security paper for the production of security documents or documents of value with an at least partially transparent film element (18) which is freely accessible through the security paper (14) at least in subregions (14). According to the invention, it is provided that the film element (18) is connected to the security paper (14) by means of a highly transparent and clearly formed adhesive layer (20) in the region of the freely accessible partial regions (16).

Description

  • The The invention relates to a security paper for the production of security or value documents with an at least partially transparent film element, at least in some areas at least one side of the security paper through the security paper through freely accessible. The invention further relates an associated manufacturing method for the Security paper, a document of value with such a security paper and a film element for such a security paper or value document.
  • Documents of value, such as banknotes, ID cards and the like, are often used for hedging provided with security elements that require a review allow the authenticity of the value documents and at the same time as protection to prevent unauthorized reproduction.
  • there increasingly gain visibility security features, such as see-through windows in banknotes, in attractiveness. For window production is one on one side over the entire surface with an adhesive layer provided film on a banknote applied to a previously introduced close through opening. typically, is the film with a security feature, such as a Hologram or an optically variable coating provided.
  • From that The present invention is based on the object, a security paper of the type mentioned in terms of visual appearance of its pane and at the same time the counterfeit protection of the security paper to increase.
  • These The object is achieved by the security paper having the features of the main claim solved. A value document, a film element and a manufacturing process for that the security paper is in the sibling Claims specified. Further developments of the invention are Subject of the dependent claims.
  • According to the Invention is in a generic security paper provided that the film element over one in the area the freely accessible subareas highly transparent and clearly formed adhesive layer connected to the security paper is. The freely accessible portions of the film element are often referred to as window areas within the scope of this description regardless of whether the film element inside or arranged on a surface of the security paper is. Is one on a surface of the security paper arranged film element in a partial area through the security paper freely accessible, it contains the security paper in this subarea a reaching to the film element through opening, where appropriate, often referred to explicitly becomes.
  • The Invention is based on the idea, the visual appearance the window area by an optimized design of the adhesive layer to improve with which the film element and the security paper are connected. The result is also the protection against counterfeiting of the security paper increases, as a visual or machine check the window area better and more reliable than in the state the technique can be performed. Due to the required specific properties in terms of durability, suitability for certain application procedures and the required Layer thickness, it is often difficult to apply an adhesive coating high transparency and low turbidity. Rather, the present inventors have realized that the adhesive coating often scatters or matts and thus the Transparency and clarity of the film element reduced. Known Review windows in banknotes appear as a result in review often with low transparency or with a cloudy visual Appearance, which ultimately reduces the protection against counterfeiting equals, because the visual or machine verification the see-through window or arranged in this area Security element is impaired.
  • In A preferred variant of the invention provides that the adhesive layer for at least one of the freely accessible subareas a substantially the region of the portion comprehensive recess having. Advantageously, the adhesive layer has a recess in Shape of the freely accessible sub-area, the 1 mm to 2 mm smaller or 1 mm to 2 mm larger than the Part area is formed. This measure will on the one hand, a secure connection of film element and security paper and on the other hand excellent transparency and clarity the window area ensured, since at most a narrow circumferential Adhesive edge remains in the region of the opening.
  • additionally can be provided that the adhesive layer in the area at least one of the freely accessible partial areas next to the recess a pattern region in which the adhesive layer in the form of Patterns, characters or a coding is applied. It can also a colored adhesive layer with one in the visible, Infrared and / or ultraviolet recognizable color used become. The adhesive layer can thereby in the window area as a decorative Design element, for displaying information and / or as a further security feature be used.
  • To another equally advantageous variant of the invention, the Adhesive layer in the area of at least one of the freely accessible Partial areas a thin area with reduced layer thickness, wherein the layer thickness in particular less than half the layer thickness is reduced outside the thin area is. Also by this measure the transparency and Clarity significantly increased in the window area.
  • The Adhesive layer and the recess or the thin area can merge into each other along a sharp border, or can make a smooth, continuous transition exhibit.
  • at Another advantageous variant of the invention is the adhesive layer formed from a low refractive index adhesive. A low refractive index within the meaning of the invention, if it is less than 1.5, especially preferably less than 1.4.
  • In In some embodiments, it is advisable to use the adhesive of the adhesive layer in the area of at least one of the freely accessible subareas to deactivate, so as to reduce the tack of the adhesive layer. Such deactivation can, for example, by a thermal Treatment or by UV irradiation.
  • To Another preferred variant of the invention is the adhesive the adhesive layer in the area of at least one of the freely accessible Smoothed sections. For this purpose, the adhesive, for example be treated thermally, in particular by exposure to Laser radiation, or the adhesive layer is in the window area calendered the application of the film element.
  • A Smoothing of the adhesive layer can also be by partial or full-surface application of a lacquer layer in the area at least one of the freely accessible subareas.
  • A Another advantageous variant of the invention is based on the use two different adhesives with different properties side by side. For this purpose, the adhesive layer is in a field of view, the at least one of the freely accessible subareas covered by a highly transparent adhesive and in an adhesive area outside the field of view by an adhesive higher Adhesive force formed. Because the two adhesives are optimized respectively their respective task can be selected creates an adhesive layer with excellent optical properties in the field of vision and excellent adhesive properties in the detention area.
  • To Yet another advantageous variant of the invention, the film element over an adhesive layer precisely matched to the through hole connected to the security paper. This is the adhesive layer preferably formed multi-layered, wherein a first adhesive layer an activatable adhesive, in particular a hotmelt adhesive, is applied to the security paper, and a second adhesive layer with at least one of the freely accessible subareas enclosing recess applied to the film element becomes. Preferably, the recess becomes about 1 mm to 2 mm larger formed as the subregion. After application of the film element the activatable adhesive is activated on the security paper and so the precisely matched, secure connection of foil element and security paper made. The continuous opening or The window area can be before or after the application of the activatable Glue layer are generated.
  • In an advantageous variant of the invention, the security paper a through opening extending from the film element is closed. The film element is over a highly transparent and clear in the area of the through opening trained adhesive layer connected to the security paper. The through opening can already be used in papermaking be generated and characteristic irregularities in the edge region exhibit. Alternatively, the through opening can also after papermaking with a sharp edge, e.g. B. by Punching or cutting, in particular laser beam cutting generated become. The film element may in particular be a patch applied to the security paper or an applied one Foil strips with a width of several millimeters up to to act on a width of about 30 mm.
  • In another likewise advantageous variant of the invention, the film element is at least partially embedded in the security paper and freely accessible in window areas on one or both sides of the security paper, wherein the film element is connected to the security paper via a highly transparent and clearly formed adhesive layer in the region of the window areas. In particular, the film element represents a narrow security strip or a wide security band with a width of up to about 30 mm. For example, the film element may be in the form of a window security element, such as a window security thread, which protrudes at certain window areas on one side of the security paper and There is freely accessible. The film element can also form a pendulum security element, such as a pendulum security thread, which alternately emerges at certain window areas on opposite sides of the security paper and is freely accessible there is.
  • In In an advantageous variant, the security paper is single-ply formed, wherein the film element at least partially in the a paper layer is embedded. After other likewise advantageous variants, the security paper is formed two or more layers and the Foil element is at least partially embedded in one of the paper layers. A Another advantageous possibility is the film element in a two- or multi-layered security paper at least partially embed between two of the paper layers.
  • The Foil element expediently has at least one Security feature on which preferably in one of the freely accessible Subareas is arranged. The security feature is particular from a diffractive structure, such as a hologram or a hologram-like diffraction structure, a matt structure, a metallization, a perforation, a lens or micromirror structure, a micro-optical system, in particular a micro-optical moiré magnification arrangement, a thin film element, a polarizing filter or formed a print, the at least one substance with optical variable, luminescent, electrically conductive or has magnetic properties.
  • The The invention also includes a value document, such as a banknote, a ID card and the like, with a security paper described Art as well as a foil element for a security paper or a value document of the type described.
  • The The invention further comprises a method for producing a security paper or value document of the type described, in which a through opening is inserted in the security paper or document of value at least partially transparent film element be provided and provided with an adhesive layer in the region of the through hole highly transparent and clear, and in which the through opening is closed with the film element.
  • Further The invention includes a method for producing a security paper or value document of the type described, in which an at least partially transparent film element is provided, the Foil element at least partially in a security paper or Value document is embedded so that it is in one pane or on both sides of the security paper through the security paper is freely accessible through, and wherein the film element is provided with an adhesive layer in the area of the window areas highly transparent and clear.
  • If, as described above, the adhesive layer is provided with a recess which essentially surrounds the region of the through opening or one of the window regions, the film element may be provided with a hydrophobic coating in the form of the desired recess before application of the adhesive layer to achieve local repulsion of the adhesive layer. The hydrophobic coating expediently has a surface tension of less than 30 × 10 -3 N / m.
  • Alternatively, a soluble wash paint in the form of the desired recess can be printed on the film element prior to the application of the adhesive layer, and the wash paint can be washed off with a solvent after application of the adhesive layer together with it. Further details of such a washing process can the document WO 99/13157 are removed, the disclosure of which is included in the present application in this respect.
  • The Adhesive layer can also only after the film application in the field the through opening or a window area removed be, for example by means of laser ablation. The adhesive layer can also already structured with the desired recess applied to the security paper or document of value, in particular be printed.
  • It may be appropriate, the adhesive layer in the area the continuous opening or a window area in a pattern area in the form of patterns, characters or an encoding applied.
  • Prefers is also a variant of the method, wherein the adhesive layer in Area of the continuous opening or a window area applied as a thin area with a reduced layer thickness becomes. In this case, the adhesive layer is either with a soft, continuous transition between adhesive layer and recess or thin area or with a sharp boundary between the adhesive layer and the recess or thin area applied.
  • To another variant of the method is the adhesive in the through opening or a window area deactivated, in particular by thermal treatment or UV irradiation.
  • alternative may be the adhesive of the adhesive layer in the area of the through opening or a window area are smoothed, in particular by thermal treatment or by calendering.
  • In Another preferred variant of the method is the adhesive layer in the area of the continuous opening or a window area partially or completely provided with a varnish layer.
  • Prefers is according to another variant, if in one Field of view, at least the continuous opening or a window area comprises a highly transparent adhesive the film element is applied and in an adhesion area outside the field of view, an adhesive of high adhesion to the film element is applied.
  • Also it is preferred if a first adhesive layer of an activatable Adhesive, in particular a hot melt adhesive, on the security paper or value document is applied, and a second adhesive layer with a through opening or a window area enclosing recess applied to the film element and the activatable adhesive after application or embedding of the film element on or in the security paper or document of value is activated. It is both conceivable, the through opening or the window area after the application of the activatable adhesive layer or vice versa, the activatable adhesive layer after Creating the through opening or the window area applied.
  • Next the already mentioned advantages in the visual appearance, the ultimately an increase in counterfeit protection can mean, by the design according to the invention also improved handling of security papers or documents of value be achieved. Especially with the embodiments with Recesses, thin spots or deactivated adhesive areas is the adhesion of dirt on the back of the window effectively suppressed and the risk of building up Adhesive on the counterpressure rollers of a printing machine in the window area, as well as the risk of blocking of substrates or cut Banknotes in parcels effectively countered.
  • Further Embodiments and advantages of the invention will be explained below with reference to the figures. For better Clarity is indicated in the figures on a scale and proportionally true representation omitted.
  • It demonstrate:
  • 1 a schematic representation of a banknote according to an embodiment of the invention,
  • 2 a cross section through the banknote of 1 along the line II-II,
  • 3 and 4 Cross-sections through banknotes according to further embodiments of the invention,
  • 5 in (a) a cross-section and in (b) a plan view of an embodiment with additional pattern area,
  • 6 a cross section of a banknote according to a further embodiment of the invention,
  • 7 in (a) a conventional banknote with an applied film element with rough adhesive layer and in (b) a banknote with an adhesive layer smoothed after the film application,
  • 8th an embodiment with a smoothed by a lacquer layer adhesive layer,
  • 9 an embodiment with an adhesive layer with two different adhesives with different specific properties,
  • 10 in (a) to (d) intermediate steps in the production of a banknote with an exact registration of adhesive layer and banknote opening, and
  • 11 in (a) to (e) various designs of security papers according to the invention with applied or embedded foil elements.
  • The invention will now be explained in more detail using the example of a banknote. Referring first to the 1 and 2 shows 1 a schematic plan view of a banknote according to the invention 10 and 2 a cross section through the banknote 10 along the line II-II of 1 ,
  • The banknote 10 contains a see-through window 12 that is from a banknote substrate 14 sweeping opening 16 and one the opening 16 closing and at least partially transparent film element 18 is formed.
  • In addition, the invention will be explained by way of example with reference to embodiments in which a film element 18 like in the 1 and 2 over a continuous opening 16 a banknote is arranged and this closes. The invention is of course not limited to such Ausfüh tion forms, but includes all designs in which a film element is freely accessible at least in some areas on one or both sides of a security paper through this. For illustration are in 11 shown some typical designs.
  • The representation corresponds to the 11 (a) the in 1 and 2 shown Gestal tion, in which a film element 114 over a continuous opening 112 a security paper 110 is arranged and closes this. In the film element 114 it can not just be a patch with a certain outline, like in 1 but also, for example, a wide film strip extending across the entire width or length of the security paper. The continuous opening 112 can, as in 2 shown having a sharp edge produced by cutting or punching, or also an edge region produced in papermaking 116 with characteristic irregularities, as in 11 (a) shown.
  • With reference to the representation of 11 (b) and (c) the film element 124 also partially in the security paper 120 be embedded and in window areas 122 on a ( 11 (c) ) or on both sides ( 11 (b) ) of the security paper 120 be freely accessible. For example, the film element may represent a window security thread that protrudes at certain window areas on one side of the security paper, or a pendulum security thread that alternately emerges at certain window areas on opposite sides of the security paper. The film element may also be a wider security tape having a width of up to about 30 millimeters. The window areas may have a sharp edge ( 11 (b) ) or a characteristically irregular border ( 11 (c) ) be formed.
  • In addition to the embedding in single-ply security paper, an embedding of the film element into two-ply or multi-ply security paper is also possible. In this case, a film element 134 between two paper layers 130-1 . 130-2 a security paper 130 be embedded, as in 11 (d) shown. In the illustrated embodiment, the film element 134 through an opening 132 in the first paper layer 130-1 freely accessible. In other places, the film element 134 also through openings in the second paper layer 130-2 from the opposite side of the security paper 130 be freely accessible.
  • In another design is, as in 11 (e) shown the foil element 144 in one of the paper layers 140-1 of the security paper 140 embedded and the paper layer 140-1 with the embedded foil element 144 is with another, for example, thinner paper layer 140-2 combined. Again, the foil element 144 through the opening 142 in the first paper layer 140-1 freely accessible.
  • For All described designs come as a substrate material each Type of paper, especially cotton vellum paper. Of course It is also possible to use paper which polymerizes a proportion x Material in the range of 0 <x <100 wt .-% contains.
  • Farther it is conceivable in principle, if present not preferred that the substrate material is a plastic film, z. B. a polyester film is. The film may also be monoaxial or biaxially stretched. The stretching of the film leads among other things, that it receives polarizing properties, which can be used as another security feature.
  • expedient it may also be when the substrate material of the security paper is a multilayer composite comprising at least one layer Paper or a paper-like material. Such a composite characterized by an extraordinarily large Stability, what the durability of the security paper or value document is of great advantage.
  • Conceivable But is also, as a substrate material, a multi-layered, paper-free Use composite material. These materials are also present not preferred but may be in certain climatic regions the earth can be used with advantage.
  • All Materials used as substrate material may include additives which serve as authenticity features. It is first Line of luminescent substances to think in the visible wavelength range are preferably transparent and in the non-visible wavelength range by a suitable tool, for. B. a UV or IR radiation emitting radiation source, can be excited to a visible or at least with aids detectable To produce luminescence. Also other security features can be used with advantage, provided they consider viewing the imprint not or only slightly affect.
  • The Film element may be considered as a partial surface of the substrate covering patch or as one over the entire length or width of the security paper or value document extending strip be educated. As materials for the film come primarily plastics, in particular PET (polyethylene terephthalate), PBT (polybutylene terephthalate), PEN (polyethylene naphthalate), PP (polypropene), PA (polyamide), PE (polyethylene), into consideration. The film can also monoaxially or biaxially stretched.
  • In some embodiments, the opening becomes 16 of the 2 already in the production of the for the banknote 10 used security paper and has a fibrous, irregular edge. Such an edge is characteristic of already produced during sheet formation openings and can not be created later. Details of the production of the fibrous, irregular edge can the WO 03/054297 A2 be removed. In that regard, the disclosure of the WO 03/054297 A2 included in the present application. In other embodiments, the opening becomes 16 only after paper production by punching or cutting, for example by laser beam cutting produced.
  • The foil element 18 is with one or more security features 26 provided, for example, with a diffractive structure, such as a hologram or a hologram-like diffraction structure, a matte structure, a metallization, a perforation, a lens or micromirror structure or the like. These security features are known as such and therefore not shown in the following figures.
  • To be in the banknote 10 a see-through window 12 with excellent transparency and high contrast for the security features 26 to ensure is the film element 18 over one in the area of the continuous opening 16 highly transparent and clearly formed adhesive layer 20 with the banknote substrate 14 connected.
  • According to the in the 1 and 2 In the embodiment shown, such an attractive visual appearance is achieved in that the adhesive layer 20 on the foil element 18 before the film application with a recess 22 is provided, which is essentially the area of the through opening 16 encloses. The recess 22 is in the form of the through hole 16 in the adhesive layer 20 introduced, but is smaller by 1 mm to 2 mm than the opening 16 designed to tolerate tolerances in the application of the film element 18 catch.
  • In this way, on the one hand, the film element 18 in the area of the opening 16 safely with the banknote substrate 14 glued, on the other hand, the essential part of the window area 12 excellent transparency and clarity, because of the adhesive layer 20 only a peripheral edge 24 a width of 1 mm to 2 mm in the region of the opening 16 remains. Due to the high transparency and clarity in the area of the opening is the visual and mechanical verification of the security feature 26 significantly improved compared to known film elements without recess of the adhesive and thus increases the protection against forgery of the value document.
  • As a further advantage of the design according to the invention, improved handling of the banknotes is achieved. Through the window area almost completely registering recess 22 The adhesion of dirt on the back of the window is effectively suppressed. Also, the risk of build-up of adhesive on the counter-pressure rollers of a printing machine in the window area, as well as the risk of blocking of substrates or cut banknotes in packs is effectively countered.
  • In the embodiment of the 3 became the glue layer 20 before the film application also with a substantially the area of the through opening 16 comprehensive recess 32 in the form of the through opening 16 Mistake. In contrast to the design of the 2 is the recess 32 but not smaller, but 1 mm to 2 mm larger than the opening 16 designed so that when taking into account the tolerances in the application of the film element 18 the area of the opening 16 completely free of adhesive. Because the foil element 18 only in a narrow border area 34 the opening does not interfere with the substrate 14 is glued, yet is a secure connection of foil element 18 and banknote substrate 14 guaranteed.
  • The transition between the adhesive layer 20 and the recess 22 respectively. 32 can run according to the invention with a sharp boundary, as in the 2 and 3 shown, or even with a smooth and continuous transition 40 as in the embodiment of 4 shown. The layer thickness of the adhesive layer 20 takes for example in a 3 mm wide transition area 42 from the maximum layer thickness continuously down to a layer thickness of zero.
  • 5 shows an embodiment in which the adhesive layer 20 as in the design of the 2 , for the most part 52 the window area is recessed, and in addition a pattern area 56 is provided in the region of the opening, in which the adhesive layer 20 is applied in the form of patterns, characters or a coding.
  • As best in the supervision on the window area of the 5 (b) can be seen forms the adhesive layer 20 in the area of the opening 16 next to the already at 2 described circumferential edge 54 a pattern of two concentric rings 56 due to the semitransparency of the adhesive layer 20 can be seen in review. The adhesive layer 20 can be so inside the opening 16 purposefully be used as a decorative design element, for displaying a further information and / or as a further security feature.
  • The area fraction of the pattern area 56 in the area of the opening 16 is kept so small that the disadvantages associated with a full-surface adhesive layer in the region of the opening in the Handling does not occur or at least greatly reduced. Alternatively, the adhesive may be in the pattern area 56 be deactivated thermally or by UV irradiation.
  • Regarding 6 is according to a further embodiment of the invention in the region of the through opening 16 not a recess with layer thickness zero in the adhesive layer 20 provided, but a thin area 62 with one opposite the detention area 64 in the overlap of film element 18 and substrate 14 reduced layer thickness. The layer thickness may, for example, be less than half or even less than one third of the layer thickness of the adhesive layer in the adhesion region 64 be reduced.
  • In the thin area 62 As a result, the film element has a significantly increased transparency and reduced scatter compared to a full-surface adhesive layer of normal thickness. The transition from the maximum layer thickness in the adhesion area 64 to the reduced layer thickness in the thin region 62 can be with a sharp border or, as in the illustration of 6 , with a smooth, continuous transition 66 respectively.
  • With the embodiment of 7 Another approach to increase the transparency and clarity of the adhesive layer is illustrated. 7 (a) first shows a banknote with an applied film element 18 , the one-sided with a full-surface adhesive layer 70 is coated. The roughness 72 the adhesive layer is exaggerated for clarity.
  • To improve the visual appearance in the window area, the adhesive layer becomes 70 According to the invention after the film application in the region of the through opening 16 smoothed, as in 7 (b) illustrated. Due to the lower roughness 74 a lower light scattering and thus a lower mattness and higher transparency of the smoothed adhesive layer and the window area is achieved in total.
  • Smoothing the adhesive layer 70 can be done in different ways. For example, the adhesive layer 70 be laser-treated in the region of the through opening, so that the viscosity of the adhesive is reduced, the adhesive flows away and forms a smoother surface. Alternatively, the adhesive layer 70 in the window area are subsequently calendered to obtain a smooth surface texture. Such a calendering step can, for example, with a Teflon-coated tool in the application machine during application of the film element 18 respectively.
  • At the further in 8th illustrated embodiment of the invention is not the adhesive layer 70 even smoothed, but the rough adhesive layer 70 becomes in the area of the continuous opening 16 with a partial or full varnish layer 80 and thereby the surface scattering of the combined layer structure of adhesive layer 70 and varnish layer 80 reduced.
  • 9 illustrates another approach of the invention based on the use of two different adhesives in the adhesive layer 90 each with different properties. This is the foil element 18 before application in a viewing area 92 that at least the area of the through opening 16 Includes, with a highly transparent adhesive 94 Although under sheds has a lower adhesive force or reduced resistance, but the transparency and clarity of the see-through window particularly little affected.
  • In a detention area 96 out of sight 92 is an adhesive 98 applied, the predominantly from the viewpoint of a high adhesive force for secure connection of film element 18 and banknote substrate 14 is selected and its transparency and scattering properties are not significant. The two adhesives 94 . 98 can therefore be chosen optimized for their particular task, an adhesive layer 90 which combines high adhesion with excellent transparency and clarity in the window area.
  • Analogous to the embodiments described above, the viewing area 92 to compensate for tolerances tolerances with advantage about a 1 mm to 2 mm greater extent than the opening to be closed, as in 9 illustrated.
  • A another possibility, impaired transparency and to avoid clarity in the window area is based on the use an activatable adhesive, with the help of the film element via an adhesive layer precisely matched to the through hole can be connected to the substrate.
  • Regarding 10 For example, such an exact registration can be achieved by first applying to a banknote substrate 14 at least in the edge region of the intended opening, a first adhesive layer 100 an activatable adhesive, such as a hot melt adhesive, is printed as in 10 (a) shown. Then the banknote substrate becomes 14 together with the not yet activated adhesive layer 100 with the desired opening 16 provided, as in 10 (b) shown. The remaining adhesive layer 100 is then exactly to the outline of the opening 16 gepassert.
  • At the same time, as in 10 (c) shown, a film element 18 provided and with a second layer of adhesive 102 and a recess 104 provided, which is slightly larger, in the exemplary embodiment, 2 mm larger than the banknote opening 16 is trained. Now the foil element becomes 18 on the substrate 14 applied. During or after the film application becomes the activatable adhesive 100 on the banknote substrate 14 activated so that the film element 18 finally, firmly with the substrate 14 is connected, as in 10 (d) shown. The activation can take place in the case of a hot-melt adhesive, for example by laser application, the necessary heating being produced by the radiation absorbed by the substrate or by the activatable adhesive itself.
  • In an alternative method variant is the activatable adhesive only after the hole generation in the edge region of the opening printed. Also, an adhesive layer is on the film element a recess that is slightly larger than the banknote opening is and the activatable adhesive is activated during or after the slide application.
  • In both variants, the combination of a passivated activatable adhesive layer 100 on the substrate 14 and an adhesive layer recessed further than the opening 102 on the foil element 18 achieved an exact registration of adhesive layer and opening. In both variants, in each case a complete strip-shaped region of activatable adhesive can also be applied to the substrate. It is essential only that the film strip to be applied over it is wider than the adhesive area on the substrate. In its edge region of the film strip is provided with a second adhesive layer to ensure the adhesion of the film strip over its entire width.
  • Around the tack of the adhesive layer in the area of the through opening 16 In all embodiments, the adhesive may be deactivated after film application, for example by a thermal treatment or by UV irradiation.
  • In the embodiments with a recessed adhesive layer, the transparency and clarity of the window region is substantially independent of the transparency of the adhesive, so that in these cases, colored adhesive layers can be used. In particular, colored adhesives may be advantageous in embodiments in which the adhesive layer, as in FIG 5 is additionally visible in the form of patterns, characters or a coding inside the window area. This also lends itself to the use of adhesives which are colored exclusively or additionally outside the visible spectral range and, for example, have IR-absorbing or UV-absorbing properties which can be evaluated, for example, in the context of a mechanical authentication test.
  • As already explained in more detail above, the adhesive recess in all embodiments before the film application by applying a partial hydrophobic precoating on the film element or by partial removal of the adhesive layer using a washing process done.
  • To the film application can the adhesive layer in the region of the through hole be removed for example by means of laser ablation. Also a direct one Printing a structured adhesive layer on the film element, for example by a gravure, flexo, screen, offset or transfer printing method, is concerned.
  • When Adhesives suitable for the invention are in particular Hot melt adhesives (hot melts), UV or electron beam curing Adhesives, solvent or water based systems, hybrid systems, and 1-component adhesives or 2-component adhesives in question.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited patent literature
    • WO 99/13157 [0026]
    • WO 03/054297 A2 [0061, 0061]

Claims (52)

  1. Security paper for the production of security or value documents with an at least partially transparent film element, at least in some areas at least one side of the security paper through the security paper through freely accessible, characterized in that the film element over a in the field of freely accessible Subareas highly transparent and clearly formed adhesive layer connected to the security paper.
  2. Security paper according to claim 1, characterized that the adhesive layer for at least one of the freely accessible Subareas essentially comprising the area of the subarea Recess has.
  3. Security paper according to claim 2, characterized that the adhesive layer has a recess in the form of the freely accessible Partial area which is 1 mm to 2 mm smaller or 1 mm to 2 mm larger than the partial area is formed.
  4. Security paper according to claim 2 or 3, characterized in that the adhesive layer is in the region of at least one the freely accessible sections in addition to the recess has a pattern area in which the adhesive layer is applied in the form of patterns, characters or a coding.
  5. Security paper according to claim 4, characterized that a colored adhesive layer with one in the visible, Infrared and / or ultraviolet recognizable color used is.
  6. Security paper according to claim 1, characterized that the adhesive layer in the area of at least one of the freely accessible Partial areas a thin area with reduced layer thickness, in particular, a layer thickness less than half the layer thickness is outside the thin range, having.
  7. Security paper according to at least one of the claims 2 to 6, characterized in that the adhesive layer and the Recess or the thin area along a sharp Border into each other.
  8. Security paper according to at least one of the claims 2 to 6, characterized in that the adhesive layer and the Recess or the thin area a soft, continuous transition exhibit.
  9. Security paper according to claim 1, characterized that the adhesive layer consists of a low refractive index adhesive, in particular with a refractive index less than 1.4.
  10. Security paper according to claim 1, characterized in that the adhesive of the adhesive layer is in the region of at least one the freely accessible sections is deactivated.
  11. Security paper according to claim 1, characterized in that the adhesive of the adhesive layer is in the region of at least one the freely accessible subareas has been smoothed, in particular by the action of heat or by calendering.
  12. Security paper according to claim 1, characterized in that the adhesive of the adhesive layer is in the region of at least one the freely accessible areas with a layer of varnish is provided.
  13. Security paper according to claim 1, characterized that the adhesive layer in a field of view, the at least one the freely accessible subareas, by a highly transparent adhesive is formed and in an adhesion area outside the field of view formed by an adhesive of high adhesion is.
  14. Security paper according to claim 1, characterized that the film element over a precise with at least one the freely accessible subregions passivated adhesive layer connected to the security paper.
  15. Security paper according to claim 14, characterized that the adhesive layer is multi-layered and a first directly on the security paper applied adhesive layer of an activated Adhesive, in particular an activated hot melt adhesive, and a second adhesive layer applied to the film element, one at least one of the freely accessible sections has enclosing recess.
  16. Security paper according to at least one of the claims 1 to 15, characterized in that the security paper a having through opening, that of the film element is closed, wherein the film element via a in Area of the through opening highly transparent and clear trained adhesive layer is connected to the security paper.
  17. Security paper according to claim 16, characterized that the through opening in papermaking is generated and has characteristic irregularities in the edge region.
  18. Security paper according to claim 16, since characterized in that the through-opening after paper production, in particular by punching or cutting, particularly preferably by laser beam cutting, is generated.
  19. Security paper according to at least one of the claims 16 to 18, characterized in that the film element on the security paper applied patch or an applied one wide film strip is.
  20. Security paper according to at least one of the claims 1 to 15, characterized in that the film element at least partially embedded in the security paper and in window areas freely accessible on one or both sides of the security paper is, wherein the film element over one in the region of the window areas highly transparent and clearly formed adhesive layer with the security paper connected is.
  21. Security paper according to claim 20, characterized that the film element a narrow security strip or a represents wide security band.
  22. Security paper according to claim 20 or 21, characterized in that the film element is a window security element is that at certain windows on one side of the security paper emerges and is freely accessible there.
  23. Security paper according to claim 20 or 21, characterized in that the film element is a pendulum security element This is done alternately at certain window areas on opposite sides Pages of the security paper emerges and there freely accessible is.
  24. Security paper according to at least one of the claims 20 to 23, characterized in that the security paper has a single layer is formed and the film element at least partially in the one Paper layer is embedded.
  25. Security paper according to at least one of the claims 20 to 23, characterized in that the security paper has two or multi-layered and the film element at least partially embedded in one of the paper layers.
  26. Security paper according to at least one of the claims 20 to 23, characterized in that the security paper has two or multi-layered and the film element at least partially embedded between two of the paper layers.
  27. Security paper according to at least one of the claims 1 to 26, characterized in that the film element at least has a security feature.
  28. Security paper according to at least one of the claims 1 to 27, characterized in that the security feature in one of the freely accessible portions is arranged.
  29. Security paper according to claim 27 or 28, characterized characterized in that the security feature consists of a diffractive Structure, such as a hologram or a hologram-like Diffraction structure, a matt structure, a metallization, a perforation, a lens or micromirror structure, a micro-optical system, in particular a micro-optical moiré magnification arrangement, a thin film element, a polarizing filter or a print consisting of at least one material with optically variable, luminescent, electrically conductive or magnetic Features.
  30. Value document, such as banknote, identity card and the like, with a security paper according to at least one of the claims 1 to 29.
  31. Foil element for a security paper or a value document according to one of claims 1 to 30, which is formed at least partially transparent and the in the area of freely accessible subareas with a provided highly transparent and clear adhesive layer is.
  32. Method for producing a security paper or value document according to any one of claims 1 to 30, at a through opening in the security paper or value document is introduced, at least in some areas transparent film element provided and with an adhesive layer is provided in the area of the through opening highly transparent and clear, and in which the through opening is closed with the film element.
  33. Method for producing a security paper or value document according to any one of claims 1 to 30, at provided an at least partially transparent film element at least partially, the film element in a security paper or value document is embedded, leaving it in window areas on one or both sides of the security paper through the Security paper is freely accessible through, and in the the film element is provided with an adhesive layer in the Area of the window areas highly transparent and clearly formed becomes.
  34. A method according to claim 32 or 33, characterized in that the adhesive layer having a substantially the area of the through opening or at least one of the window areas comprehensive recess is provided.
  35. A method according to claim 34, characterized that the recess in the form of the through opening or at least one of the window areas is generated, and 1 mm to 2 mm smaller or 1 mm to 2 mm larger than the through opening or the window area is formed.
  36. A method according to claim 34 or 35, characterized that the film element before applying the adhesive layer with a hydrophobic coating in the form of the desired Recess is provided.
  37. A method according to claim 34 or 35, characterized that on the film element prior to the application of the adhesive layer a soluble wash in the form of the desired Recess is printed, and that the wash color after application the adhesive layer together with this by a solvent is washed off.
  38. A method according to claim 34 or 35, characterized that the adhesive layer in the area of the through opening or a window area after the application or embedding of the film element on or in the security paper or document of value is removed, preferably removed by laser ablation.
  39. A method according to claim 34 or 35, characterized that the adhesive layer is structured with the desired Recess applied to the security paper or document of value, in particular is printed.
  40. Method according to at least one of the claims 34 to 39, characterized in that the adhesive layer in the area the continuous opening or a window area in a pattern area in the form of patterns, characters or an encoding is applied.
  41. A method according to claim 32 or 33, characterized that the adhesive layer in the area of the through opening or a window area as a thin area with reduced Layer thickness is applied.
  42. Method according to at least one of the claims 32 to 41, characterized in that the adhesive layer with a soft, continuous transition between adhesive layer and recess or thin area is applied.
  43. Method according to at least one of the claims 32 to 41, characterized in that the adhesive layer with a sharp boundary between the adhesive layer and recess or thin area applied becomes.
  44. Method according to at least one of the claims 32 to 43, characterized in that the adhesive of the adhesive layer in the area of the through opening or a window area is deactivated, in particular by thermal treatment or UV irradiation.
  45. A method according to claim 32 or 33, characterized that the adhesive of the adhesive layer in the area of the through opening or a window area is smoothed.
  46. Method according to claim 45, characterized in that that the adhesive is thermally treated for smoothing, in particular by exposure to laser radiation.
  47. Method according to claim 45, characterized in that that the adhesive for smoothing after application or Inserting the film element is calendered.
  48. A method according to claim 32 or 33, characterized that the adhesive layer partially or completely with a Paint layer is provided.
  49. A method according to claim 32 or 33, characterized that in a field of view, at least the through opening or a window area, a highly transparent adhesive is applied to the film element and in an adhesive area outside of the field of view, a high adhesion adhesive is applied to the film element.
  50. A method according to claim 32 or 33, characterized a first adhesive layer of an activatable adhesive, in particular a hot melt adhesive, on the security paper or Value document is applied, and a second adhesive layer with one the continuous Publ tion or a window area enclosing recess applied to the film element and that the activatable adhesive after application or Insertion of the film element is activated.
  51. Method according to claim 50, characterized in that that the through opening or a window area after the application of the activatable adhesive layer is generated.
  52. Method according to claim 50, characterized in that that the activatable adhesive layer after the production of the through opening or a window area is applied.
DE200710040865 2007-05-04 2007-08-29 Security paper Pending DE102007040865A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102007021391 2007-05-04
DE102007021391.5 2007-05-04
DE200710040865 DE102007040865A1 (en) 2007-05-04 2007-08-29 Security paper

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE200710040865 DE102007040865A1 (en) 2007-05-04 2007-08-29 Security paper
PCT/EP2008/003305 WO2008135174A1 (en) 2007-05-04 2008-04-24 Security paper
RU2009144392/12A RU2428536C1 (en) 2007-05-04 2008-04-24 Counterfeit-proof paper
AT08749104T AT491067T (en) 2007-05-04 2008-04-24 Security paper
DE200850001999 DE502008001999D1 (en) 2007-05-04 2008-04-24 Security paper
EP20080749104 EP2147156B1 (en) 2007-05-04 2008-04-24 Security paper

Publications (1)

Publication Number Publication Date
DE102007040865A1 true DE102007040865A1 (en) 2008-11-06

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DE200710040865 Pending DE102007040865A1 (en) 2007-05-04 2007-08-29 Security paper
DE200850001999 Active DE502008001999D1 (en) 2007-05-04 2008-04-24 Security paper

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DE200850001999 Active DE502008001999D1 (en) 2007-05-04 2008-04-24 Security paper

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EP (1) EP2147156B1 (en)
AT (1) AT491067T (en)
DE (2) DE102007040865A1 (en)
RU (1) RU2428536C1 (en)
WO (1) WO2008135174A1 (en)

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EP2760680B1 (en) 2011-09-26 2015-11-25 Crane Security Technologies, Inc. Method for producing a composite web and security devices prepared from the composite web
EP2550398A4 (en) * 2010-03-25 2017-01-25 UPM-Kymmene Corporation Safety paper and a method for manufacturing safety paper
US10087583B2 (en) 2007-10-23 2018-10-02 De La Rue International Limited Security elements

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IT1393584B1 (en) 2009-03-23 2012-04-27 Fabriano Securities Srl Document forgery proof, such as a banknote, a passport, an identity card or the like and method for its manufacture
ES2396940T3 (en) 2009-10-16 2013-03-01 Hueck Folien Ges.M.B.H. Value document
CN102465473B (en) * 2010-11-09 2014-12-24 中国人民银行印制科学技术研究所 Composite safety line
GB201301790D0 (en) 2013-02-01 2013-03-20 Rue De Int Ltd Security devices and methods of manufacture thereof
GB201301788D0 (en) 2013-02-01 2013-03-20 Rue De Int Ltd Security devices and methods of manufacture thereof
FR3047440B1 (en) 2016-02-10 2019-05-10 Oberthur Fiduciaire Sas Method for manufacturing security documents and corresponding documents

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US10087583B2 (en) 2007-10-23 2018-10-02 De La Rue International Limited Security elements
EP2550398A4 (en) * 2010-03-25 2017-01-25 UPM-Kymmene Corporation Safety paper and a method for manufacturing safety paper
EP2760680B1 (en) 2011-09-26 2015-11-25 Crane Security Technologies, Inc. Method for producing a composite web and security devices prepared from the composite web
US10195891B2 (en) 2011-09-26 2019-02-05 Crane Security Technologies, Inc. Method for producing a composite web and security devices prepared from the composite web

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DE502008001999D1 (en) 2011-01-20
RU2428536C1 (en) 2011-09-10
EP2147156B1 (en) 2010-12-08
RU2009144392A (en) 2011-06-10
EP2147156A1 (en) 2010-01-27
AT491067T (en) 2010-12-15
WO2008135174A1 (en) 2008-11-13

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