EP2788197B1 - Papier de sécurité, document de valeur obtenu à partir dudit papier et procédé de fabrication dudit papier et dudit document - Google Patents

Papier de sécurité, document de valeur obtenu à partir dudit papier et procédé de fabrication dudit papier et dudit document Download PDF

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Publication number
EP2788197B1
EP2788197B1 EP12797714.8A EP12797714A EP2788197B1 EP 2788197 B1 EP2788197 B1 EP 2788197B1 EP 12797714 A EP12797714 A EP 12797714A EP 2788197 B1 EP2788197 B1 EP 2788197B1
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EP
European Patent Office
Prior art keywords
lacquer
substrate
dirt
repellent
gloss
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.)
Active
Application number
EP12797714.8A
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German (de)
English (en)
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EP2788197A1 (fr
Inventor
Peter Schiffmann
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
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Giesecke and Devrient GmbH
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Publication of EP2788197A1 publication Critical patent/EP2788197A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • 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
    • 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
    • B42D25/355—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
    • 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
    • B42D25/405—Marking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0036—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers dried without curing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0045—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by mechanical wave energy, e.g. ultrasonics, cured by electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams, or cured by magnetic or electric fields, e.g. electric discharge, plasma
    • B42D2033/04—
    • B42D2033/18—
    • B42D2033/24—
    • B42D2033/30—
    • B42D2033/32—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes

Definitions

  • the invention relates to a security paper for the production of value documents, such as banknotes, passports, identity documents or the like, with a flat substrate, which is provided on at least one surface with at least one tamper-evident means, wherein the tamper-evident means to extend the life and fitness provided with a paint is.
  • the invention further relates to a value document with such a security paper and method for producing the security paper and the value document.
  • Security documents such as banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other forgery-prone papers, such as passports or other identity documents, are often provided with counterfeit securities for verification, which allow a verification of the authenticity of the value document and at the same time serve as protection against unauthorized reproduction.
  • the tamper-evident means may for example be in the form of a security thread completely or partially embedded in a banknote or in the form of a security strip or patch applied to the banknote.
  • EP 0 758 587 A1 discloses a method for producing a partially transparent security element having a visually recognizable surface pattern on optical diffractive optical markers (hologram) with non-coherent reflective layers and transparent adhesive bridges embedded in a plastic laminate.
  • hologram optical diffractive optical markers
  • a base film microscopically fine relief structures are molded, with such a structured lacquer layer of the base film over the entire surface with the Reflective layer is coated, an etchant is applied in a predetermined printed image of partial surfaces by printing on the reflective layers, the reflective layers removed by the etchant in the faces and the surface of the paint layer is exposed.
  • the lacquer layer in the partial areas and the remaining areas of the reflection layers are coated with at least one transparent protective layer, the transparent adhesive bridges forming in the partial areas from the direct connection of the lacquer layer to the protective layer.
  • DE 101 24 630 A1 discloses a security printed with indicia and having at least one security element, and at least one side of the security having a protective lacquer layer, wherein the protective lacquer layer is formed as a matt lacquer and is recessed in the area of the security element.
  • WO 2004/072378 A1 discloses a security paper for the production of documents of value, which is at least partially provided with a dirt-repellent protective layer to extend the life and fitness, wherein the protective layer comprises at least two layers of lacquer, wherein a first lower lacquer layer is formed by a physically drying lacquer layer applied to the substrate which makes contact with the underlying substrate and closes its pores, and wherein a second top coat protects the substrate from physical and chemical attack.
  • WO2005 / 106601 A2 discloses a carrier film with an anti-counterfeiting agent, wherein a surface of the carrier film has an optically variable security feature with microstructures and micro-imaging elements for enlarged illustration of the microstructures (Fig. 21, page 26, see also page 7), wherein the anti-counterfeiting means for Extension of the life and fitness for circulation with the visibility of the optically variable security feature substantially not influencing, dirt-repellent radiation-curing first coat ("protective coating / varnish 138") is provided.
  • the carrier film is glued to a security paper (adhesive 136, see also page 9). This document does not disclose that the varnish covers a partial surface of the substrate of the security paper surrounding the anti-counterfeiting agent and also gives no indication of the exact thickness of the varnish layer.
  • Optically variable security features give the viewer a different image impression under different viewing angles.
  • the security features may be in the form of diffraction-optically effective microstructures or nanostructures, such as in the case of conventional embossing holograms or others Hologram-like diffraction structures (see, for example, the publications EP 0 330 733 A1 or EP 0 064 067 A1 ).
  • lens systems it is also known to use lens systems as security features.
  • a security thread of a transparent material described on the surface of a grid of several parallel cylindrical lenses is imprinted.
  • the thickness of the security thread is chosen so that it corresponds approximately to the focal length of the cylindrical lenses.
  • the print image is designed taking into account the optical properties of the cylindrical lenses.
  • moiré magnification arrangements are used as security features.
  • Such a moire magnification arrangement is in the document WO 2006/087138 A1 or in the DE 10 2005 028 162 A1 disclosed.
  • That in the WO 2006/087138 A1 disclosed counterfeit protection means comprises at least a first and a second security feature.
  • the first authenticity feature comprises a first arrangement with a plurality of focusing elements, which are present in a first grid, and a second arrangement with a multiplicity of microscopic structures, which are present in a second grid.
  • the first and second arrays are arranged one another such that the microscopic structures of the second array are magnified as viewed through the focussing elements of the first array.
  • Such a magnification effect is also called moiré magnification.
  • moiré magnification thereafter refers to a phenomenon when looking at a raster of identical image objects through a lenticular of approximately the same Pitch occurs. As with any pair of similar rasters, this results in a moire pattern, in which case each of the moiré fringes appears in the form of an enlarged and rotated image of the repeated elements of the image raster.
  • Securities may be provided with a dirt-repellent protective coating to extend their service life and fitness.
  • a dirt-repellent protective coating to extend their service life and fitness.
  • a protective layer which contains cellulose ester or cellulose ether to a greater extent and micronized wax to a lesser extent and which is applied over the entire surface of the bills.
  • the micronized wax is thereby dispersed by kneading or mixing with oil, a colorant or a mixture thereof.
  • the sheets freshly printed with the protective layer can be easily stacked without discoloring black color from a sheet to the underlying sheet.
  • Optically variable counterfeit protection means in particular security elements with a microoptical representation arrangement with microstructures and microimage elements for enlarged imaging of the microstructures, for example microlens or micro hollow mirror arrays, can not be provided with a dirt-repellent protective layer as a result of a possible impairment of the optical effect.
  • the partial application of a soil-repellent protective layer to a bill equipped with an optically variable counterfeit security device The fact that the protective layer has a recess in the area of the anti-counterfeiting means leads to disturbing dirt spots in the region of the recess (in particular in the case of a window thread).
  • the object of the invention is to avoid the disadvantages of the prior art and, in particular, to provide a security paper which has improved soil repellency in the area of the optically variable counterfeiting device and at the same time ensures an attractive visual appearance of the counterfeiting device.
  • a first aspect of the invention relates to a security paper according to claim 1.
  • the first lacquer may contain an additional feature substance, in particular luminescent substance, which does not substantially influence the perceptibility of the optically variable security feature.
  • the luminescent substance e.g. nanoscale luminescent substances.
  • the luminescent substance may e.g. be detectable in the UV range.
  • the first lacquer provided with a luminescent substance may at least partially have a special design or pattern at least at its edges.
  • the tamper-evident means may in particular be in the form of a security strip, a security thread (for example a window thread) or a patch.
  • the radiation-curing first lacquer is preferably a UV-curable lacquer which is high-gloss after crosslinking, i. only a very small scattering and thus only a very slight matting.
  • a crosslinked UV varnish can be obtained from a UV-crosslinking varnish which contains no dulling agent and, due to its coating composition, has only a very slight scattering after drying and thus only a very slight dulling.
  • the substrate may be provided with a water-based primer layer on its surface lying outside of the counterfeiting protection means, said layers having said dirt-repellent properties which do not substantially affect the perceptibility of the optically variable security feature optionally partially overlaps radiation-curing first lacquer in the region of the partial surface of the substrate surrounding the anti-counterfeiting agent.
  • the primer layer may, according to an alternative, be arranged at a distance from the counterfeit protection means (so that there is no overlapping arrangement with respect to the first varnish). According to a further alternative, the primer layer can be present over the entire surface and the counterfeit protection means (for example a patch or a strip) can be arranged above the primer layer.
  • the primer layer can be provided with a UV-crosslinking lacquer forming a cover layer which protects the substrate from physical and chemical influences.
  • the substrate may be provided with a dirt-repellent second lacquer on its surface lying outside the anti-counterfeiting agent the mentioned, the perceptibility of the optically variable security feature substantially non-influencing, soil-repellent radiation-curing first lacquer in the region of the anti-counterfeiting surrounding partial surface of the substrate optionally partially overlaps, and either (a) based on a physically drying, water-based dispersion varnish, which may optionally contain crosslinking agent, and having a matt impression after drying, in particular a gloss of less than 20 gloss units, preferably less than 15 gloss units at 60 °, measured by means of gloss meters according to DIN 67530, or (b) are based on a UV-crosslinking lacquer which has a matt impression after crosslinking, in particular a gloss of less than 20 gloss units, preferably less than 15 gloss units at 60 °, measured by means of gloss meters according to DIN 67530.
  • the soil-repellent second paint is based on a physically drying, water-based dispersion paint which cures by removal of the dispersant and which is an aqueous dispersion of a polyacrylic resin and / or a polyurethane resin.
  • a second aspect of the invention relates to a document of value, such as a banknote, a passport, a document of identification or the like, with a security paper according to the first aspect of the invention, wherein the substrate is located on its surface outside the counterfeiting device, in particular in the case of the presence of the optionally existing dirt-repellent second paint or the optionally present water-based primer layer on the surface of the same or the same, is printed with signs or patterns.
  • the substrate is provided with a water-based primer layer on its surface lying outside the counterfeiting protection means, which comprises the said dirt-repellent radiation-curing first varnish, which does not substantially influence the perceptibility of the optically variable security feature, in the area surrounding the counterfeiting means
  • the substrate may be partially overlapped (or the primer layer is spaced from the first resist, or the primer layer is over the entire area and the counterfeit protection agent is disposed on the primer layer), wherein the primer layer is printed with indicia and the primer layer is coated with a UV- capping layer.
  • crosslinking third paint is provided, which protects the substrate from physical and chemical influences.
  • the UV-crosslinked third varnish may also contain characters or patterns are printed (eg a number can be printed).
  • a third aspect of the invention relates to a method according to claim 8.
  • the tamper-evident means be in the form of a security strip, a security thread or a patch.
  • the radiation-curing first lacquer is a UV-curing lacquer which is high-gloss after crosslinking.
  • the method preferably comprises the additional step of applying a water-based primer layer to the surface of the substrate external to the anti-counterfeiting agent in such a way that the said, the perceptibility of the optically variable security feature substantially not influencing, dirt-repellent radiation-curing first lacquer in the region of the anti-counterfeiting surrounding part surface of the substrate is optionally partially overlapped by the water-based primer layer.
  • the primer layer may, according to an alternative, be arranged spaced apart from the tamper-evident means (so that there is no overlapping arrangement with respect to the first lacquer).
  • the primer layer can be applied over the whole area in a first step and the counterfeit protection means (eg a patch or a strip) can be arranged in a second step above the primer layer.
  • the method may alternatively, according to another preferred embodiment, comprise the additional step of applying a soil-repellent second paint to the surface of the substrate lying outside the anti-counterfeiting agent, in such a way that the said, substantially not influencing the perceptibility of the optically variable security feature, Dirt-repellent radiation-curing first lacquer in the region of the counterfeiting agent surrounding partial surface of the substrate is optionally partially overlapped by the dirt-repellent second lacquer, wherein the dirt-repellent second lacquer either (a) based on a physically drying, water-based dispersion varnish, which may optionally contain crosslinking agent, and having a matt impression after drying, in particular a gloss of less than 20 gloss units, preferably less than 15 gloss units at 60 °, measured by means of gloss meters according to DIN 67530, or (b) it is based on a UV-crosslinking varnish which has a matt impression after crosslinking, in particular a gloss of less than 20 gloss units, preferably less than 15 gloss units at
  • the soil-repellent second paint is based on a physically drying, water-based dispersion paint which cures by removal of the dispersant and which is an aqueous dispersion of a polyacrylic resin and / or a polyurethane resin.
  • a fourth aspect of the invention relates to a method of manufacturing a value document, such as a banknote, a passport, a passport document or the like the provision of a security paper according to the first aspect of the invention, and the printing of the surface of the substrate lying outside the counterfeiting protection means, in particular in the case of the presence of the optionally present dirt-repelling second varnish or the possibly present water-based primer layer, the printing of the surface of the same or the same, with signs or patterns.
  • a value document such as a banknote, a passport, a passport document or the like the provision of a security paper according to the first aspect of the invention, and the printing of the surface of the substrate lying outside the counterfeiting protection means, in particular in the case of the presence of the optionally present dirt-repelling second varnish or the possibly present water-based primer layer, the printing of the surface of the same or the same, with signs or patterns.
  • the method preferably comprises providing the security paper with the water-based primer layer described above, printing the surface of the water-based primer layer with characters or patterns, and in a further step, providing the printed primer layer with a UV-crosslinking third lacquer forming a cover layer which protects the substrate from physical and chemical influences.
  • the invention is based on the finding that the resistance to fouling of an optically variable counterfeiting agent can be substantially improved by application of a radiation-curing, high-gloss lacquer after crosslinking in a small layer thickness of 0.7 to 2 ⁇ m, preferably 0.7 to 1.5 ⁇ m, without noticeably deteriorating the optical effect of the counterfeiting agent, in particular the light / dark contrast, the image sharpness and the magnification and movement effect.
  • a varnish can be obtained from a UV-crosslinking varnish which contains no matting agents and, as a result of its varnish composition, has only a very slight scattering after drying and thus only a very slight matting.
  • matting agent refers to " Römpp-Lexikon Lacke und Druckmaschine ", Georg Thieme Verlag, 1998 , Substances that affect the surface of a coating so that their gloss level decreases. Matting agents may be of inorganic or organic origin.
  • the former class includes, for example, amorphous preparations based on silicic acid or silicate, the latter including Al, Zn, Ca or Mg stearates and compounds of similar construction and finally products of a waxy type, eg micronized polypropylene waxes.
  • Inorganic matting agents usually have an average particle size of 0.5 to 20 microns.
  • Organic matting agents usually have a mean particle size of 0.04 to 10 microns.
  • the term "matting agent" Silicic or silicate-based amorphous preparations, Al, Zn, Ca or Mg stearates, wax-type products or similar inorganic or organic substances which the degree of gloss of the radiation-cured first varnish to the same extent as reduce the substances mentioned.
  • the measurement of the degree of gloss for example on the basis of devices of the reflectometer type, is known to the person skilled in the art (see, for example, the gloss measurement according to DIN 67530 at a measuring angle of 60 °).
  • the radiation-curing "first" lacquer may in particular be a UV-curing lacquer, which may be free-radically or cationically crosslinking UV lacquers.
  • the UV-crosslinking lacquer preferably has at least one monomeric acrylate (mono-, di-, tri- and / or tetrameric acrylate) and optionally additives or processing aids, such as defoamers, dispersing agents, UV curing accelerators, viscosity modifiers, leveling agents and stabilizers ,
  • the radiation-curing lacquer may consist of a lacquer based on an acrylate mixture, preference being given to an acrylate mixture obtained by reacting at least one intermediate molecular weight prepolymeric acrylate of e.g.
  • UV curing e.g. UV rays in a range of 200 to 400 nm.
  • the radiation-curing "first" coating may in particular be based on mixtures of mono- and / or difunctional monomeric acrylates, prepolymeric acrylates, and tri- and / or tetrafunctional monomeric acrylates.
  • prepolymeric acrylates for example, polyester acrylates, urethane acrylates, Acrylacrylacrylates and / or methacrylacrylates, oligoester acrylates, epoxy acrylates, and / or mixtures of two or more of these prepolymeric acrylates are used.
  • composition of the radiation-curing first coating is listed below:
  • Composition 1 is a composition of Composition 1:
  • polyester acrylate prepolymer (“Laromer PE 55 F” from BASF) 10% by weight of trimethylolpropane triacrylate (“Laromer TMPTA” from BASF) 20% by weight of hexanediol diacrylate (“Laromer HDDA from BASF) 5% by weight of photoinitiator (“Darocure 1173" from CIBA) 3% by weight of reactive amine additive for accelerating UV curing (“Ebecryl P 115”) 0.5% by weight defoamer (“coatosil”)
  • the radiation-curing first coating can be applied as a spot coating in the flexo, offset or high-pressure process.
  • the application can be made in the paper mill or in the printing house.
  • the viscosity of the radiation-curing lacquer in a range of 30 to 150 sec, in particular 30 to 80 sec, flow time according to DIN 4 CUP cup at 20 ° C.
  • the anti-fouling agent based on a carrier film can be in the form of a security strip, a security thread or in the form of a label or patch, for example.
  • the optically variable security feature with which the counterfeit security device is provided is based in particular on lens systems (see, for example, the publications EP 0 238 043 A2 and DE 36 09 090 A1 ) or microvoided mirror arrays (see eg DE 10 2009 035 361 A1 ).
  • the forgery-proofing means can be visually recognizable to the observer completely or only partially.
  • An example of an only partially visually recognizable counterfeit security device is a window security thread (eg a microlens thread), which emerges in window areas on the surface of a banknote, while it is embedded in the intervening web areas inside the banknote (see, eg Fig. 1 of the WO 2004/097112 A1 ).
  • the dirt-repellent radiation-curing first lacquer is not applied in register over the anti-counterfeiting agent, but the lacquer also covers a part of the security paper substrate which surrounds the anti-counterfeiting agent and forms, as it were, an edge region for the anti-counterfeiting means (the phrase "surrounding the anti-counterfeiting agent Part surface "used herein is representative of the peripheral area).
  • the anti-counterfeiting agent may be surrounded all around by the first varnish, such as in the case of a patch-shaped anti-counterfeiting agent.
  • the tamper-evident means is surrounded on two sides by the first lacquer, ie the tamper-evident means and two elongated partial surfaces of the substrate adjacent to the tamper-evident means are provided with the first lacquer ,
  • the partial surface of the substrate surrounding the anti-counterfeiting agent, ie the edge region can in particular have a width of 0.3 to 10 mm, preferably 1 to 5 mm, measured from the outer edge of the counterfeiting protection device to the outer edge of the adjacent partial surface of the substrate.
  • the security paper substrate on its surface lying outside the counterfeiting protection means with a conventional dirt-repellent second paint, which the dirt-repellent radiation-curing first paint in the partially overlaps the anti-counterfeiting agent surrounding partial surface of the substrate. In the absence of overlap, there is a risk of uncoated areas that lead to visible dirt edges in circulation.
  • the second varnish may be based on a physically drying, water-based dispersion varnish, which may optionally contain crosslinking agent and has a matt impression after drying, in particular a gloss of less than 20 gloss units, preferably less than 15 gloss units at 60 °, measured by means of gloss meters according to DIN 67530 , (see for example the publications WO 00/00697 . EP 0 815 321 B1 and EP 1338 430 A1 ), or on a UV-crosslinking paint, which has a matt impression after crosslinking, in particular a gloss of less than 20 gloss units, preferably less than 15 gloss units at 60 °, measured by means of gloss meters according to DIN 67530, having.
  • the paint may in particular contain matting agents. The presence of a matting agent improves the printability of the substrate.
  • the lacquer components described above with reference to the first lacquer are suitable.
  • aqueous dispersions based on a polyacrylic resin and / or a polyurethane resin are preferred.
  • the paint can be based in particular on a one-component polyurethane system or one-component polyacrylate system with pre-crosslinked polyurethane or polyacrylate. But it can also be used blocked polyurethane having chemically bonded to the polymer chains isocyanate groups. The isocyanate groups can be regenerated at elevated temperatures, which are generally used in the security printing process. Two-component polyurethane systems or polyacrylate systems crosslinkable by using multifunctional reagents such as melamine / formaldehyde precondensates may also be used.
  • the polyurethane may in particular be of the aliphatic polyester type and / or of the aliphatic polyether type. It is also possible to use aliphatic polycarbonate polyurethane.
  • the polyacrylate may generally be, for example, of the aromatic type, such as a styrene / acrylic copolymer. Mixtures of a polyurethane and a polyacrylate can be used, for example, in a weight ratio of 90:10 to 10:90, preferably 75:25 to 25:75.
  • the physically drying aqueous dispersions may contain additional ingredients such as catalysts, co-solvents, dispersing aids, defoamers, viscosity modifiers, extenders, fluorescent and / or iridescent additives and / or surfactants.
  • a typical physically drying aqueous dispersion comprises, for example, a polyurethane of the aliphatic polyester or aliphatic polyether type having a polyurethane content of from 2 to 70% by weight, preferably from 5 to 30% by weight.
  • the second lacquer may preferably be applied to the security paper by means of the flexographic printing process.
  • the coating layer is expediently applied in a coating amount of 1 to 8 g / m 2 .
  • Examples of physically drying compositions of the second paint are listed below, wherein matting agents are additionally present (for example in an amount of from 1 to 20% by weight, based on the aqueous dispersion):
  • Composition 2 is a composition of Composition 2:
  • Composition 3 is a composition of Composition 3:
  • Composition 4 is a composition having Composition 4:
  • the security paper in the course of producing a value document, is printed with characters or patterns on the surface of the substrate which is located outside the counterfeit security device.
  • a printed image can be printed on the second paint.
  • the security paper substrate may be provided according to a further, alternative preferred embodiment on its lying outside the counterfeit security agent surface with a water-based primer layer, the dirt-repellent radiation-curing first paint in the area If necessary, partially overlapping the partial surface of the substrate surrounding the anti-counterfeiting device.
  • the primer layer may, according to an alternative, be arranged at a distance from the counterfeit protection means (so that there is no overlapping arrangement with respect to the first varnish).
  • the primer layer can be present over the entire surface and the counterfeit protection means (for example a patch or a strip) can be arranged above the primer layer.
  • the primer layer serves as an adhesion promoter between the substrate and one or more layers or layers arranged above the primer layer.
  • the primer layer has a barrier to liquids.
  • the water-based primer layer can be provided with a UV-crosslinking lacquer (the "third" lacquer) forming a cover layer.
  • the water-based primer layer and / or the UV-crosslinked topcoat can be printed with a printed pattern in the form of characters and / or patterns.
  • Suitable water-based primer layers are known in the art (see for example the EP 1 595 029 B1 , under WO 2004/07 23 78 A1 released). It is in particular a physically drying lacquer layer which makes contact with the underlying substrate and closes its pores.
  • the primer layer can be formed, for example, by a water-based dispersion lacquer layer. It is expediently applied to the substrate in such a layer thickness that it forms a smooth and coherent layer on the substrate.
  • the lacquer layer is elastic, so that cracking in the lacquer layer by mechanical movements or sources of the fiber, eg by moisture absorption, are avoided. This has the advantage that the haptic typical for banknotes, ie the bending stiffness and the sound, is retained longer under stress.
  • the elastic paints comprise polyurethane systems which give the paint its elasticity.
  • polyurethane systems which give the paint its elasticity.
  • these are, for example, water-based dispersions of aliphatic polyester-polyurethanes, aliphatic polyether-polyurethanes or acrylic-styrene-polyurethanes.
  • the amount of coating required depends, inter alia, on the lacquer used, the substrate material used and its roughness and pore size and number of pores.
  • the primer layer is present in a coating weight of 1 to 8 g / m 2 , preferably 2 to 6 g / m 2 on the substrate (wet weight). In any case, the layer thicknesses must be sufficient to close the irregular depressions and pores of the sheet substrate.
  • the aqueous primer layer may optionally contain crosslinking agents, eg aziridine.
  • Suitable UV-crosslinking lacquer layers with high physical and chemical resistance are known in the art (see, for example, US Pat EP 1 595 029 B1 ).
  • the paint may contain, in particular matting agents (eg 10 to 15 wt .-%).
  • matting agents eg 10 to 15 wt .-%).
  • the paint components of the UV-crosslinking third paint for example, the paint components described above with respect to the first paint are suitable. It is preferred that the UV-crosslinking third lacquer has silicones and / or waxes for improving the dirt-repellent properties.
  • cationic crosslinking lacquer systems are also suitable.
  • the third lacquer may be present in particular on the substrate in a coating weight of 0.5 to 3 g / m 2 , preferably of 1 to 2 g / m 2 . This corresponds to about 1 to 2 g / m 2 of the preferred range in the uncrosslinked state because UV systems are so-called "100% systems" (ie, 100% solids).
  • UV crosslinking third varnish may be e.g. based on the above-described "Composition 1", wherein matting agents are mixed in a proportion of 10 to 15 wt .-%.
  • Partial application of the first lacquer in the area of the anti-counterfeiting agent in the paper machine in front of the cross cutter Applying the water-based primer layer in the areas outside the anti-counterfeiting agent, so that the primer layer partially overlaps the first paint.
  • a final spot coating with the third lacquer takes place as a dirt-repellent coating so that the third lacquer covers the water-based primer layer.
  • Banknote papers are typically made from fibers of annual plants, especially cotton fibers or pulp fibers, but papers which are at least partially made of plastic fibers, preferably polyamide fibers or polyester fibers, may also be used. More preferably, a cotton paper is used as a security paper substrate.
  • the basis weight of the substrate varies depending on the application form. Typical basis weights are in the range of 50 g / m 2 to 100 g / m 2 , preferably in the range of 60 g / m 2 to 90 g / m 2 , more preferably about 70 g / m 2 .
  • the individual paper layers may consist of the same or different types of paper.
  • a paper layer may be a pure cotton paper, while another paper layer may comprise plastic fibers.
  • multi-layered Paper / foil composites are used, such as a paper / foil / paper composite or a foil / paper / foil composite.
  • the production preferably takes place by means of a rotary screening machine.
  • Fig. 1 shows a schematic representation of a security paper 1, which is provided with an embedded window security thread 2 and a glued patch-shaped security element 3.
  • the security paper 1 also has the denomination "100" in the form of a watermark.
  • the window security thread 2 in the present case a microlens thread
  • the security element 3 in the present case, a micro-optical representation arrangement with microstructures and micro hollow mirror arrays for enlarged imaging of the microstructures
  • the windowed security thread 2 shown in dashed lines appears on the window areas 4 on the surface of the security paper 1, while it is embedded in the interior of the security paper 1 at the intervening web areas.
  • the patch-shaped security element 3 and the window security thread 2 are each provided with a perceptibility of the optically variable effect substantially not influencing, dirt-repellent radiation-curing first paint.
  • the first lacquer is a UV lacquer based on composition 1 described above and is applied to the security paper in flexographic printing or offset printing processes in areas 5 and II.
  • the first varnish is not applied register-exactly above the counterfeiting protection means 2 and 3, but the varnish also covers adjacent parts of the security-paper substrate which surround the counterfeit-protection means 2 and 3 and so to speak form edge regions for the counterfeit-protection means 2 and 3.
  • the layer thickness of the first coating is 1.5 ⁇ m in the present example.
  • the security paper 1 is at its outside of the counterfeiting protection means 2 and 3 lying surface over the entire surface with a dirt repellent second paint provided, which partially overlaps the first UV varnish in the area surrounding the anti-counterfeiting means 2 and 3 partial surfaces of the substrate.
  • the soil-repellent second paint is based on a preferably by flexographic printing, physically drying aqueous dispersion paint according to the composition 2 described above.
  • Fig. 2a shows the enlarged section II of Fig. 1 in plan view.
  • the window security thread 2 protrudes at the window areas 4 on the surface of the security paper while being embedded at the intermediate land areas inside the security paper.
  • the security thread is introduced into the paper during papermaking by means of the wobble technique known in the prior art.
  • wobble here denotes a periodic variation of the security thread when embedding in the paper of several millimeters perpendicular to the thread direction, so that certain wobble zones 6 are formed, within which the security thread comes to rest.
  • the window security thread 2 and the window security thread 2 surrounding part surface of the substrate are to extend the life and the fitness for circulation with the above-described, the perceptibility of the optically variable security feature substantially not influencing, dirt-repellent radiation-curing first lacquer 7 provided (see Fig. 2b ).
  • the security paper 1 has on its outside of the window security thread 2 lying surface on the above-described dirt-repellent second lacquer 8, which partially overlaps the first lacquer 7 in the area surrounding the window security thread 2 partial surface of the substrate.
  • the overlapping areas are designated by reference numeral 9 (see Fig. 2c ).

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Paper (AREA)

Claims (15)

  1. Papier de sécurité destiné à la fabrication de documents de valeur tels que billets de banque, passeports, documents d'identification ou objets similaires, comprenant un substrat étendu équipé, en au moins une surface, d'au moins un moyen de sécurisation contre la contrefaçon, cependant que
    le moyen de sécurisation contre la contrefaçon est basé sur une feuille support ayant une première et une deuxième surface principale se faisant face, et que la première surface principale de la feuille support reconnaissable visuellement au moins par endroits pour l'observateur, située en face du substrat, comporte une caractéristique de sécurité optiquement variable à microstructures ainsi que des microéléments formateurs d'image destinés à la représentation agrandie des microstructures, et que
    le moyen de sécurisation contre la contrefaçon et une surface partielle du substrat entourant le moyen de sécurisation contre la contrefaçon sont pourvus, pour la prolongation de la durée de vie et de l'aptitude à la circulation, d'un premier vernis, lequel n'influence essentiellement pas la perceptibilité de la caractéristique de sécurité optiquement variable, est résistant aux salissures et durcissable par rayonnement, et a une épaisseur de couche située entre 0,7 et 2 µm.
  2. Papier de sécurité selon la revendication 1, le moyen de sécurisation contre la contrefaçon se trouvant sous forme d'un ruban de sécurité, d'un fil de sécurité ou d'un patch et/ou le premier vernis durcissable par rayonnement étant un vernis réticulant aux UV qui est très brillant après la réticulation.
  3. Papier de sécurité selon une des revendications 1 ou 2, le substrat étant pourvu, en sa surface située à l'extérieur du moyen de sécurisation contre la contrefaçon, d'une couche d'apprêt à base d'eau qui, dans la zone de la surface partielle du substrat entourant le moyen de sécurisation contre la contrefaçon, chevauche éventuellement partiellement ledit premier vernis qui n'influence essentiellement pas la perceptibilité de la caractéristique de sécurité optiquement variable, est résistant aux salissures et durcissable par rayonnement, et la couche d'apprêt étant pourvue éventuellement d'un vernis qui réticule aux UV, forme une couche de recouvrement et protège le substrat contre des influences physiques et chimiques.
  4. Papier de sécurité selon une des revendications 1 ou 2, le substrat étant pourvu, en sa surface située à l'extérieur du moyen de sécurisation contre la contrefaçon, d'un deuxième vernis résistant aux salissures qui
    dans la zone de la surface partielle du substrat entourant le moyen de sécurisation contre la contrefaçon, chevauche éventuellement partiellement ledit premier vernis n'influençant essentiellement pas la perceptibilité de la caractéristique de sécurité optiquement variable et étant résistant aux salissures, et
    consiste soit (a) en un vernis de dispersion à séchage physique et à base d'eau qui peut éventuellement contenir des agents de réticulation, et présente, après le séchage, un aspect mat, en particulier une brillance inférieure à 20 unités de brillance, de préférence inférieure à 15 unités de brillance à 60°, mesurée au moyen de brillancemètres conformément à DIN 67530,
    soit (b) en un vernis réticulant aux UV qui, après la réticulation, présente un aspect mat, en particulier une brillance inférieure à 20 unités de brillance, de préférence inférieure à 15 unités de brillance à 60°, mesurée au moyen de brillancemètres conformément à DIN 67530.
  5. Papier de sécurité selon la revendication 4, le deuxième vernis résistant aux salissures consistant en un vernis de dispersion à séchage physique et à base d'eau, lequel est, par élimination de l'agent dispersant, durci, et qui est une dispersion aqueuse d'une résine polyacrylique et/ou d'une résine de polyuréthane.
  6. Document de valeur tel qu'un billet de banque, un passeport, un document d'identification ou objet similaire, comprenant un papier de sécurité selon une des revendications de 1 à 5, le substrat étant, en sa surface située à l'extérieur du moyen de sécurisation contre la contrefaçon, en particulier dans le cas de l'existence du deuxième vernis résistant aux salissures éventuellement existant ou de la couche d'apprêt à base d'eau éventuellement existante, imprimé en la surface de ce dernier ou de cette dernière avec des caractères ou des motifs.
  7. Document de valeur selon la revendication 6, le substrat étant, en sa surface située à l'extérieur du moyen de sécurisation contre la contrefaçon, pourvu d'une couche d'apprêt à base d'eau qui, dans la zone de la surface partielle du substrat entourant le moyen de sécurisation contre la contrefaçon, chevauche éventuellement partiellement ledit premier vernis résistant aux salissures et durcissable par rayonnement qui n'influençe essentiellement pas la perceptibilité de la caractéristique de sécurité optiquement variable, et étant imprimé avec des caractères ou des motifs, et la couche d'apprêt étant pourvue d'un troisième vernis réticulant aux UV, formant une couche de recouvrement et protégeant le substrat contre des influences physiques et chimiques.
  8. Procédé de fabrication d'un papier de sécurité, destiné en particulier à un document de valeur tel qu'un billet de banque, un passeport, un document d'identification ou objet similaire, comprenant
    mise à disposition d'un substrat étendu équipé, en au moins une surface, d'au moins un moyen de sécurisation contre la contrefaçon, cependant que le moyen de sécurisation contre la contrefaçon est basé sur une feuille support ayant une première et une deuxième surface principale se faisant face, et que la première surface principale de la feuille support reconnaissable visuellement au moins par endroits pour l'observateur, située en face du substrat, comporte une caractéristique de sécurité optiquement variable à microstructures ainsi que des microéléments formateurs d'image destinés à la représentation agrandie des microstructures, et
    application d'un premier vernis approprié à la prolongation de la durée de vie et de l'aptitude à la circulation, n'influençant essentiellement pas la perceptibilité de la caractéristique de sécurité optiquement variable, résistant aux salissures, durcissable par rayonnement et ayant une épaisseur de couche située entre 0,7 et 2 µm sur le moyen de sécurisation contre la contrefaçon et sur une surface partielle du substrat entourant le moyen de sécurisation contre la contrefaçon.
  9. Procédé selon la revendication 8, le moyen de sécurisation contre la contrefaçon se trouvant sous forme d'un ruban de sécurité, d'un fil de sécurité ou d'un patch.
  10. Procédé selon la revendication 8 ou 9, le premier vernis durcissable par rayonnement étant un vernis réticulant aux UV qui est très brillant après la réticulation.
  11. Procédé selon une des revendications de 8 à 9, comprenant l'étape supplémentaire de l'application d'une couche d'apprêt à base d'eau sur la surface du substrat située à l'extérieur du moyen de sécurisation contre la contrefaçon, de telle façon que ledit premier vernis résistant aux salissures et durcissable par rayonnement qui n'influence essentiellement pas la perceptibilité de la caractéristique de sécurité optiquement variable est, dans la zone de la surface partielle du substrat entourant le moyen de sécurisation contre la contrefaçon, éventuellement chevauché partiellement par la couche d'apprêt à base d'eau.
  12. Procédé selon une des revendication de 8 à 10, comprenant l'étape supplémentaire de l'application d'un deuxième vernis résistant aux salissures sur la surface du substrat située à l'extérieur du moyen de sécurisation contre la contrefaçon, de telle façon que ledit premier vernis résistant aux salissures et durcissable par rayonnement qui n'influence essentiellement pas la perceptibilité de la caractéristique de sécurité optiquement variable est, dans la zone de la surface partielle du substrat entourant le moyen de sécurisation contre la contrefaçon, éventuellement chevauché partiellement par le deuxième vernis résistant aux salissures, cependant que le deuxième vernis résistant aux salissures
    consiste soit (a) en un vernis de dispersion à séchage physique et à base d'eau qui peut éventuellement contenir des agents de réticulation, et présente, après le séchage, un aspect mat, en particulier une brillance inférieure à 20 unités de brillance, de préférence inférieure à 15 unités de brillance à 60°, mesurée au moyen de brillancemètres conformément à DIN 67530,
    soit (b) en un vernis réticulant aux UV qui, après la réticulation, présente un aspect mat, en particulier une brillance inférieure à 20 unités de brillance, de préférence inférieure à 15 unités de brillance à 60°, mesurée au moyen de brillancemètres conformément à DIN 67530.
  13. Procédé selon la revendication 12, le deuxième vernis résistant aux salissures consistant en un vernis de dispersion à séchage physique et à base d'eau, lequel est durci par élimination de l'agent dispersant et est une dispersion aqueuse d'une résine polyacrylique et/ou d'une résine de polyuréthane.
  14. Procédé de fabrication d'un document de valeur tel qu'un billet de banque, un passeport, un document d'identification ou objet similaire, comprenant
    mise à disposition d'un papier de sécurité selon une des revendications de 1 à 5, et
    impression de la surface du substrat située à l'extérieur du moyen de sécurisation contre la contrefaçon, en particulier dans le cas de l'existence du deuxième vernis résistant aux salissures éventuellement existant ou de la couche d'apprêt à base d'eau éventuellement existante, l'impression de la surface de ce dernier ou de cette dernière avec des caractères ou des motifs.
  15. Procédé selon la revendication 14 avec renvoi à la revendication 3, comprenant
    mise à disposition d'un papier de sécurité selon la revendication 3,
    impression de la surface de la couche d'apprêt à base d'eau avec des caractères ou des motifs, et
    opération consistant à pourvoir la couche d'apprêt imprimée, à une étape supplémentaire, d'un troisième vernis réticulant aux UV, formant une couche de recouvrement et protégeant le substrat contre des influences physiques et chimiques.
EP12797714.8A 2011-12-09 2012-11-29 Papier de sécurité, document de valeur obtenu à partir dudit papier et procédé de fabrication dudit papier et dudit document Active EP2788197B1 (fr)

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DE102011120850A DE102011120850A1 (de) 2011-12-09 2011-12-09 Sicherheitspapier, daraus erhältliches Wertdokument und Verfahren zum Herstellen derselben
PCT/EP2012/004938 WO2013083253A1 (fr) 2011-12-09 2012-11-29 Papier de sécurité, document de valeur obtenu à partir dudit papier et procédé de fabrication dudit papier et dudit document

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EP (1) EP2788197B1 (fr)
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CN106661843A (zh) * 2014-07-03 2017-05-10 巴斯夫欧洲公司 用于纸和纸板的水性表面涂层剂
TW201619917A (zh) 2014-09-09 2016-06-01 西克帕控股有限公司 具有相互關聯的特徵的鈔票
GB2535985B (en) 2015-02-24 2019-11-06 Portals De La Rue Ltd Improvements in security documents
DE102017004039B4 (de) * 2017-04-26 2019-06-06 Mühlbauer Gmbh & Co. Kg Sicherheitseinlage für ein Ausweisdokument und Verfahren zur Herstellung einer Sicherheitseinlage für ein Ausweisdokument
DE102017004037B4 (de) * 2017-04-26 2019-06-27 Mühlbauer Gmbh & Co. Kg Sicherheitseinlage mit einer Vertiefung für ein Ausweisdokument und Verfahren zur Herstellung einer Sicherheitseinlage mit einer Vertiefung für ein Ausweisdokument

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MX2014006708A (es) 2014-07-09
CL2014001476A1 (es) 2014-11-07
WO2013083253A1 (fr) 2013-06-13
EP2788197A1 (fr) 2014-10-15
US9827803B2 (en) 2017-11-28
MX337085B (es) 2016-02-11
DE102011120850A1 (de) 2013-06-13

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