WO2014076049A1 - Caractéristique de sécurité pour un produit de valeur et/ou de sécurité, ce produit de valeur et/ou de sécurité, et procédé de réalisation de la caractéristique de sécurité - Google Patents

Caractéristique de sécurité pour un produit de valeur et/ou de sécurité, ce produit de valeur et/ou de sécurité, et procédé de réalisation de la caractéristique de sécurité Download PDF

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Publication number
WO2014076049A1
WO2014076049A1 PCT/EP2013/073550 EP2013073550W WO2014076049A1 WO 2014076049 A1 WO2014076049 A1 WO 2014076049A1 EP 2013073550 W EP2013073550 W EP 2013073550W WO 2014076049 A1 WO2014076049 A1 WO 2014076049A1
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WO
WIPO (PCT)
Prior art keywords
type
fibers
color
security
substrate surface
Prior art date
Application number
PCT/EP2013/073550
Other languages
German (de)
English (en)
Inventor
Uwe Seidel
Per KRÜGER
Michael Knebel
Stephan WÖLKI
Rainer Seidel
Original Assignee
Bundesdruckerei Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bundesdruckerei Gmbh filed Critical Bundesdruckerei Gmbh
Priority to EP13796015.9A priority Critical patent/EP2920002B1/fr
Publication of WO2014076049A1 publication Critical patent/WO2014076049A1/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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—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
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • 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

Definitions

  • Security feature for a value and / or security product the security and / or security product and method for producing the security feature
  • the present invention relates to a security feature for a value and / or security product, for example a security and / or security document or a security element, and a method for producing such a security feature.
  • a security and / or security document may, for example, be a personal document, in particular a personal ID card, or a means of payment, in particular a banknote.
  • Such documents are typically produced in standardized formats, for example in the ID 1, ID 2 or ID 3 format according to ISO 7810.
  • the documents can basically consist of or contain an organic polymer or a ceramic material, paper, cardboard or metal. Cards and card-shaped components of book-type documents may preferably be made of laminated polymer films.
  • the security features used in the value and / or security products can only serve to prove the authenticity of the products regardless of their nature or by their user.
  • Such security features are, for example, guilloches, watermarks, embossing prints, tipping pictures, holograms, the special paper of banknotes and the like.
  • Personalizing, for example, personalizing, security features also contain in coded form or in plain text information about the type of document, about the user of this document and / or about an object to which the document is uniquely assigned. Such information may be a facial image (photograph) of the user, his or her personal data such as name, date of birth, place of birth, signature or a personal identifier such as a membership number.
  • Another security feature that individualizes the document can be, for example, a serial number of the document or the chassis number of a motor vehicle to which the document is assigned.
  • DE 10 2007 059 747 A1 One of the aforementioned various types of security features is the iris print produced by the high-pressure or offset printing process (DE 10 2007 059 747 A1).
  • DE 10 2006 050 120 A1 describes a method for individual identification of a printed product for securing its authenticity.
  • a multiple printing units having printing machine for printing sheets with multiple sub-images, wherein a plate or forme cylinder has a controllable drive in at least one printing unit of the printing press.
  • the iris pressure is executed.
  • At least two different inks are used side by side in a single printing unit. These inks are separated from each other in a paint box by so-called color box separators, but they mix in the inking unit.
  • DE 10 2008 012 423 A1 specifies a polymer layer composite comprising a plurality of polymer layers with a colored security feature, wherein information is broken down into a plurality of print separations, which each comprise partial information of the information and which are printed in a coordinated manner on different substrate layer surfaces.
  • color transitions can be integrated, such as an iris print.
  • the pixels of a first color in a printout and the pixels of a second color can be printed in a further printout.
  • DE 102 04 870 A1 discloses the attachment of a security feature by introducing fibers into a value carrier, for example a banknote or a passport. These fibers can be made detectable by irradiation with light of a certain wavelength. The introduction of such fibers is known when scooping the paper of a banknote. The fibers form a security feature with randomly distributed features.
  • DE 10 2010 063 015 A1 discloses a device suitable for this purpose with a grit holder whose inner surface is at least partially uneven and which has at least one slot-shaped scattering opening.
  • the security feature may also be located in at least one counterfeiting and / or falsification and / or copy secure inner product level.
  • the present invention has the essential further object of providing a cost-effective, simple and quickly realizable security feature.
  • the security feature is intended to increase the security level compared to conventional value and / or security documents or security elements.
  • value and / or security product which may be a value and / or security document or a security element in particular, is used in the description and in the claims of the present application, this includes, for example, a passport, identity card, Driver's license or other ID card or access card, vehicle registration document, vehicle registration document, visa, check, means of payment, in particular a banknote, check, bank, credit or cash card, customer card, health card, chip card, company ID, proof of eligibility, membership card , Gift or shopping voucher, bill of lading or other proof of entitlement, tax stamp, postage stamp, ticket, token, token, adhesive label (for example for product security) or any other ID document.
  • a product according to the invention is also a security element which has the security feature according to the invention and which can be permanently connected to the document, for example a sticker, label or the like.
  • the product may be, for example, a smart card.
  • the security and / or value document may be in ID 1, ID 2, ID 3, or any other normalized or non-normalized format, such as in a booklet form, such as a passport-like item.
  • a security and / or valuable product is generally a laminate of a plurality of document layers, which have been connected in register under the influence of heat and under increased pressure. These products should meet the standardized requirements, for example ISO 10373, ISO / IEC 7810, ISO 14443.
  • the product layers consist, for example, of a carrier material which is suitable for lamination.
  • a feature is to be understood which causes an optical impression which acts on a viewer and which is represented by a colored, in particular luminescent, pattern of In a relative arrangement of mutually adjacent particles of grit, in particular of fibers, most preferably of mottled fibers, is produced.
  • the security feature can occupy the entire area of the document or only part of it.
  • the grit is characterized by its property of being scattered. They may be particles of any shape, such as platelet, rod, spherical, or irregularly shaped particles, and also fibers, i. elongated structures characterized by a large ratio of their length to their diameter, and the like.
  • the particles typically have a size (diameter of the granules or the fibers) of 10 to 500 ⁇ m, preferably of 30 to 150 ⁇ m, and very particularly preferably of 40 to 100 ⁇ m.
  • a filament of 25 dtex according to ISO 1 144 can be used, which is cut into filament pieces.
  • the grit is present in several types, which differ at least by their recognizable with the human eye color.
  • the color is based on the color impression, which is caused by the hue and / or brightness of the color when illuminating the grit with electromagnetic radiation, not only single or multi-colored visual impressions but also
  • the object underlying the present invention is achieved by the security feature according to the invention for a value and / or security product.
  • the security feature is formed by a spreading material fixed on at least one surface of at least one substrate, preferably of fibers, most preferably of mottling fibers. It is at least grit of a first type and grit of a second type. Accordingly, the particles of the spreading material of the first type are different from the particles of the spreading material of the second type. This does not exclude that in addition other types of grit may be present, namely grit of a third type, grit of a fourth type, etc., wherein the grit of these other types also on the at least one surface of the at least one substrate is fixed.
  • the grit of the first type appears to the human eye in a first color, ie its particles emit or reflect electromagnetic radiation in the visible part of the electromagnetic spectrum.
  • the grit of the second type appears to the human eye in a second color, which differs from the first color of the grit of the first type. If, in addition, there are other types of spreading material, this appears to the human eye in still different colors, which differ from each other and from the first and the second color.
  • the spreading material of the first type and the spreading material of the second type and optionally the spreading material of further types form on the at least one substrate surface in the manner according to the invention a color gradient structure, for example an iris, of colors running into one another.
  • the object underlying the present invention is also achieved by a value and / or security product having at least one security feature according to the invention.
  • the security feature is located on at least one exterior of the security and / or security product, i. on the outside of a document or security element, or it is located in at least one interior level in the security and / or security product.
  • the security feature is preferably detectable visually or at least mechanically by means of optical methods from the outside.
  • the object underlying the present invention is also achieved by a method for producing the security feature according to the invention for the value and / or security product.
  • This production process comprises the following process steps:
  • At least one substrate is provided, each with at least one substrate surface.
  • grit of at least a first type and a second type is provided, wherein the grit of the first type to the human eye in a first color and the grit of the second type appear in a second color and optionally with other types of human eye other colors is provided.
  • the grit of the first type and the grit of the second type are applied to the at least one substrate surface, preferably scattered, so that the grit of the first type and the grit of the second type on the least at least one substrate surface form a color gradient structure of mutually extending colors.
  • the grit is preferably formed by fibers, most preferably by mottled fibers.
  • the fibers thus form a colored surface in that a more or less dense surface is formed with free regions of different sizes between the fibers.
  • the resulting free areas between the fibers are small and vice versa. Due to the fiber coating on the at least one surface, therefore, a color impression is produced which can be detected indirectly by the human eye or else indirectly by means of a device suitable for this purpose.
  • the color surface varies between at least two colors, whereby a (continuous) transition takes place between the colors by color mixing.
  • the color mixture may be additive (eg corresponding to the RGB color space) or subtractive (eg corresponding to the CMYK color space).
  • red and blue fibers may be applied to the at least one substrate surface, wherein the fibers of one type, for example the red fibers, in a first color field and the fibers of the other type, for example the blue fibers, are applied in a second color field.
  • the fibers of one type for example the red fibers
  • the fibers of the other type for example the blue fibers
  • a second color field In a mixed-color region in which a transition from the purely red to the purely blue color takes place, ie in the border region between the first and the second color field, thus mixed colors between red and blue color, in this case for example violet color tones, are formed .
  • the transition between the colors preferably takes place continuously, ie without noticeable color jump, which would be characterized by a boundary between two color areas with different colors. For the continuous color transition, the color changes along a single color progression or alternatively in several color gradients.
  • At least fibers of a first type substantially in a first color field and fibers of a second type are applied to the substrate surface substantially in a second color field.
  • the border area between the Both color fields form a transition zone in which the color gradient structure is formed.
  • Their width can be adjusted individually.
  • the two color fields do not overlap but are arranged side by side on the substrate surface and thus spatially separated from each other. Uniform colored areas in the color fields can be omitted, in which case only the transition zone is present, ie the color gradient structure.
  • a color gradient structure by means of fibers creates a novel feature which can serve as an authenticity feature and / or as a coding feature for the value and / or security product. It is easy to manufacture and therefore inexpensive. By the fibers form a defined color structure on the value and / or security product and thus are also easily localized, a better detectability of the fibers is ensured.
  • the fibers on the at least one substrate surface i. in the color patches and in the transition zone of the gradient structure, random, i. stochastic, distributed. It is therefore very particularly preferred no preferred direction and no regular arrangement of the fibers to each other. Their distances from each other, their position and their spatial orientation on the at least one surface are therefore also stochastic.
  • the inherent color of each of the fibers can be generated by any excitation. It is sufficient if it is perceptible by the human eye, ie in the visible spectral range.
  • the security feature when illuminated with light in the visible spectral range, the first color and / or the second color are perceived by the human eye. This is the case when the fibers absorb spectrally unevenly in the visible spectral radiated electromagnetic radiation, so that only individual color components are remittiert.
  • Fibers of the first type, fibers of the second type and optionally fibers of other types therefore absorb different color components of the visible spectral range, so that different color components of this spectral range are remitted by fibers of different types and are thus perceivable by the human eye.
  • the fibers of one type are each uniformly colored, ie they reflect light at all their surface locations essentially the same electromagnetic spectrum. Fibers of one type are also dyed uniformly from one fiber to another. In principle, it is of course also possible to use fibers which have different fiber regions whose remitted electromagnetic radiation produces different color impressions.
  • the fibers of each type are formed only from one material each, which causes a uniform color impression.
  • At least one dye and / or at least one pigment are added to the fiber material, and / or the fibers are coated with at least one dye and / or at least one pigment.
  • dyes and pigments it is possible to use all commercially available materials which are compatible with the fiber material and which survive the processing conditions for the production of the fibers and their introduction into and / or application to the fibers.
  • the first color and / or the second color and / or optionally further colors when the security feature is illuminated with an excitation radiation for example with electromagnetic radiation in the ultraviolet (UV) spectral range, in particular with UV-A Radiation (380 to 315 nm) and / or UV-B radiation (315 to 280 nm), very particularly preferably UV-A radiation, for example at 365 nm, and / or optionally also with UV-C radiation (280 up to 200 nm), for example up to 200 nm, in particular 254 nm, perceived by the human eye.
  • an excitation radiation for example with electromagnetic radiation in the ultraviolet (UV) spectral range, in particular with UV-A Radiation (380 to 315 nm) and / or UV-B radiation (315 to 280 nm), very particularly preferably UV-A radiation, for example at 365 nm, and / or optionally also with UV-C radiation (280 up to 200 nm), for example up to 200 nm, in particular 254 nm,
  • luminescence preferably photoluminescence, which can be emitted in the form of fluorescence or phosphorescence with both Stokes and anti-Stokes shift.
  • the excitation radiation can also be in another spectral range, for example in the visible or infrared (IR) range.
  • Luminescence is produced when the fibers absorb the electromagnetic excitation radiation irradiated, for example, in the UV spectral range, and then emit electromagnetic radiation in the spectral range visible to the human eye.
  • Fibers of the first type, fibers of the second type and fibers of other types thus absorb the excitation radiation and luminesce spectrally different in the visible spectral range, so that different colors of fibers of different types are emitted.
  • the fibers of one type luminesce uniformly, ie they emit light at all locations with substantially the same electromagnetic spectrum.
  • fibers which are formed from different parts so that different luminescence emanates from the different parts and therefore these different chen parts produce different color impressions.
  • the fibers of each type are formed only from one material each, which causes a uniform color impression.
  • fibers of the first type are excitable with UV-A radiation, but not with UV-B radiation
  • fibers of the second type are excitable with UV-B radiation, but not with UV-A radiation.
  • the one area with the fibers of the first type is visible under UV-A excitation, the other area under excitation with UV-B radiation.
  • both fiber types can be seen simultaneously, so that the color gradient structure is visible.
  • fibers of the first type can be excited with UV-A radiation and UV-B radiation and fibers of the second type can be excited with UV-B radiation, but not with UV-A radiation.
  • the color gradient under UV-B radiation is directly visible, under UV-A excitation, however, only the fibers of the first type are visible.
  • At least one luminescent substance is added to the fiber material, and / or the fibers are coated with at least one luminescent substance.
  • luminescent substances it is possible to use all commercially available materials which are compatible with the fiber material and which survive the processing conditions for producing the fibers and their introduction into and / or application to the fibers, namely both organic and inorganic luminescent substances, for example rhodamine 6G , Fluorescein and rare earth (luminophore) doped materials forming a host lattice for the luminophores, in particular substances doped with terbium, gadolinium, dysprosium, holmium, erbium, thulium, cerium and / or europium, for example oxides, oxinates, Sulfides, oxysulfides, oxynitrides, phosphates or vanadates.
  • the pigments preferably have a particle size of less than 10 ⁇ , preferably less
  • the fibers can either luminesce exclusively and, when illuminated in the visible spectral range, be colorless or nearly colorless to the human eye or appear colored to the human eye only when illuminated in the visible spectral range when illuminated with electromagnetic radiation outside the visible spectral range but have no luminescence, or they can both appear colored to the human eye when illuminated in the visible spectral range and additionally luminesce.
  • the fibers of the first type and of the second type and optionally further types are formed at least partially by an adhesive.
  • the adhesive should be at least partially exposed on the outside of the fibers, so that the fibers are fixed there when they hit the at least one substrate.
  • the glue can form a fiber part.
  • the fibers may be formed of a plurality of coaxial strands, at least one of which is formed by the adhesive.
  • the adhesive may therefore be adjacent to strands of another material on the outside of the fibers, or it may completely surround a fiber core, such as a sheath type.
  • the adhesive material may contain at least one of the substances responsible for the color of the fibers when illuminated in the visible spectral range and / or for the luminescence of the fiber.
  • the fibers can be fixed on the at least one substrate surface, so that the color gradient structure is preserved during the manufacturing process for the value and / or security document.
  • the adhesive is a hot melt adhesive, ie an adhesive which melts when heated.
  • the adhesive may also be a reactive adhesive, for example an acrylate adhesive.
  • the hotmelt adhesive has, for example, a softening temperature of 50 to 200 ° C., preferably of 80 to 120 ° C.
  • the adhesive is preferably not tacky at room temperature.
  • the hotmelt adhesive can be formed, for example, from polyamide or from a polyamide copolymer.
  • the adhesive may be formed of PA12, PA6 or PA6.6.
  • the adhesive is formed of PA6 or a copolymer of polyamide.
  • This glue can encase a core of the fibers. This core can be formed, for example, from PA6.6.
  • polyamide polyethylene, polyethylene terephthalate, polyvinyl chloride, cellulose or their derivatives, such as viscose or cellophane into consideration. Polyamide is preferred.
  • the at least one substrate surface in a further preferred development of the present invention can also be provided with an adhesive, for example with a hot-melt adhesive or with a reactive adhesive.
  • the fibers are applied to the provided with the adhesive surfaces of the substrate and fixed there, for example by heating.
  • the fibers in particular mottled fibers, can be designed differently with regard to their shape and geometry.
  • For a characterization serve the length, the diameter and the cross-sectional shape.
  • a typical length is in a range of 2 to 25 mm, preferably about 6 mm.
  • the diameter is, for example, in a range of 20 to 150 ⁇ , preferably 50 to 60 ⁇ .
  • the cross-sectional shape is preferably circular or oval, but may also be formed, for example, star-shaped or otherwise. Examples of this are given in DE 103 24 630 A1, the disclosure content of which, at least with regard to these cross-sectional shapes and the production of such fibers, is incorporated by reference into the present application.
  • the valuable and / or security product may be formed from a polymer selected from a group comprising polycarbonate (PC), in particular bisphenol A polycarbonate, polyethylene terephthalate (PET), derivatives thereof, such as glycol modified PET (PETG), Polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl butyral (PVB), polymethylmethacrylate (PMMA), polyimide (PI), polyvinyl alcohol (PVA), polystyrene (PS), polyvinylphenol (PVP), polypropylene (PP), polyethylene (PE ), thermoplastic elastomers (TPE), in particular thermoplastic polyurethane (TPU), acrylonitrile-butadiene-styrene copolymer (ABS) and their derivatives, and / or paper.
  • PC polycarbonate
  • PET polyethylene terephthalate
  • PEN glycol modified PET
  • PEN Polyethylene naphthalate
  • PVC polyvinyl chloride
  • the product can also be made from several of these materials. It preferably consists of PC or PC / TPU / PC.
  • the polymers may be either unfilled or filled. In the latter case they are preferably transparent or translucent. If the polymers are filled, they are opaque.
  • the above information relates both to films to be bonded together and to liquid formulations applied to a precursor, such as a resist.
  • the product is preferably prepared from 3 to 12, preferably 4 to 10, films.
  • a laminate formed in this way can finally be coated on one or both sides with a protective lacquer. Overlay layers formed in this way protect a security feature arranged underneath and / or give the document the required abrasion resistance.
  • the security feature is preferably formed on at least one of the inner layers.
  • the at least one substrate, on whose at least one surface the fibers are applied, is thus formed in each case by a product layer or by the product itself.
  • a precursor for the value and / or security product for example a blank that does not yet have all the product layers, but most of the security features, can be used as a substrate on one or both surfaces of which the fibers are applied.
  • the fibers of the first type are in a first color region (in a first color field) on the at least one substrate surface
  • the fibers of the second type are in a second color region (in a second color field) on the at least one substrate surface.
  • the two color areas are adjacent to each other but do not overlap.
  • the color progression structure can consist in particular in that a part of the fibers of the first type is also applied (partially) in the second (adjacent) color region (overlapping with this color region).
  • the color gradient structure can also consist in that a part of the fibers of the second type is also applied (partially) in the first (adjacent) color region (overlapping this color region).
  • the fibers of the first type can first be applied to the at least one substrate surface, in particular scattered, whereby the fibers of the first type are additionally applied to the at least one surface, in particular scattered, overlapping in the second color region of the second fiber type.
  • the fibers of the second type can subsequently or simultaneously be applied to the at least one substrate surface, in particular scattered, wherein the fibers of the second type are additionally applied to the at least one surface, in particular also overlapping in the first color region of the first fiber type be sprinkled.
  • both types of fibers are applied in each case overlapping, so that the color gradient structure is formed in the overlapping region.
  • overlapping strips can be produced with the respective fiber types.
  • an application device with at least one applicator can be used, which in each case has at least one scattering housing.
  • the at least one scattering housing is in each case at least one scattering housing interior, in each of which fibers of one type are included.
  • the litter housing interior is closed at the bottom by a bottom in which discharge openings are, through which the fibers emerge from the application device.
  • the at least one applicator can be arranged such that the fibers are applied from the interior spaces in different areas to the at least one substrate surface.
  • the scattering housings are preferably arranged at a defined distance above the substrate surface and each have at least one discharge opening, from which the fibers can emerge from the interior spaces and fall onto the substrate surface.
  • the housing interiors are separated from each other.
  • the housing interior can be located in a commissioned work or in several commissioned works. In the case of, for example, two housing interiors for two fiber types, either two application units, each with an interior space or a commissioned unit with two interiors, are provided. When applying more than two fiber types correspondingly more housing interior spaces are provided. In the event that the interiors are in a commissioned work - preferably adjacent to each other or even spaced apart - the fibers of all types are preferably applied simultaneously to the substrate surface.
  • fibers of two types from the commissioned work which has two housing interior spaces arranged next to one another, can be sprinkled into different color fields on the at least one substrate surface.
  • the commissioned works are spaced from each other or are arranged one after the other over the substrate surface, so that the fibers are sequentially applied to the substrate surface.
  • the fibers can, for example, from two application units, each having a housing interior, be sequentially sprinkled into different color fields on the at least one substrate surface.
  • the fibers of different types can also at least partially mix with one another before they leave the applicator and thus form the color gradient structure during application.
  • the fibers can be introduced next to one another into a common interior of the housing, initially unmixed, so that they can partially mix even before the application in a boundary region.
  • a demarcating partition between adjacent the fiber types respectively receiving interiors of the commissioned work can be provided, however, the interiors only over a part of the entire contact surface separates from each other. This partition already ends above the discharge openings, so that the fibers of different types in this lower area of the interior partially mix with each other before they emerge from the commissioned work.
  • the application device and a substrate surface for applying the fibers to the substrate surface are movable relative to one another.
  • the substrate having the substrate surface is movable, and the application device is stationary (unmoved) arranged.
  • the substrate can be moved by means of a transport device, in particular by the substrate resting on a conveyor belt.
  • the substrate may also be a belt that is moved past the application device.
  • the application device can also be movable and the substrate surface can be stationary.
  • the fibers can exit the application device from a slot-shaped opening or from a slot-like opening, for example in the form of openings, for example in a straight row. In these cases, the fibers are applied in strips to the substrate surface.
  • the application device and the substrate are not moved relative to one another in a second embodiment during the application process.
  • the application device for this purpose have discharge openings, which are arranged in the form of the pattern to be generated.
  • concentric circular surfaces formed with fibers, which have color gradient structures can be formed.
  • the substrate surface is arranged below the application device so that fibers emerging from it can fall on the surface (be scattered). If the substrate surface is arranged in a different relative position to the application device, for example laterally to the latter, the fibers can be conveyed to the surface, for example by means of an air flow. In this case, it is necessary that the fibers are fixed on the substrate surface immediately upon impact. This succeeds by a sticky surface or by heating the surface so that fibers equipped with an adhesive adhere to it upon impact.
  • the formation of the color gradient structure during overlapping deposition is decisively influenced by the distance between the application device and the substrate surface.
  • This distance can be, for example, 10 to 50 mm.
  • this distance can also be greater, for example up to 200 mm or up to 300 mm, or even smaller, for example at least 5 mm.
  • overlapping scattering of the fiber types into the other color field may also be achieved by relatively moving the applicator device relative to the substrate surface during application in a direction perpendicular to the transition between the two
  • Color fields can be achieved.
  • the application device can be moved back and forth shaking during the application process.
  • the color-gradient structure can be produced by applying the fibers in a transition region between adjacent color fields, in which different types of fibers are applied to the at least one substrate surface, not sharply delimited to the respective color field, so that a part of the fibers also on the adjacent color field arrives. If this is realized both for the fibers of the first type applied to one of the two color patches and for the fibers of the second type applied to the other of the two color patches, a very smooth transition between the two fiber types can be achieved and thus be achieved between the two colors. Of course, in principle, an application not limited to the respective color field is sufficient for one type of fiber.
  • the color gradient structure can be produced as an alternative to the above formation method in that the at least one substrate surface has a positionally variable surface property which imparts a fixation of the fibers on the latter and which, moreover, determines the color gradient structure on the at least one NEN substrate surface in their local formation maps variable position. In this case, it is not necessary to use fibers that are self-adhesive.
  • the positionally variable surface property can be formed, for example, by the substrate surface not covering the entire surface adhesive structures.
  • These adhesive structures may consist, for example, of a structured layer of a hotmelt adhesive.
  • the adhesive structures may be formed by adhesive surfaces which are preferably spaced apart from one another and whose surface portion varies as a function of the distance from the boundary line between the first and the second color field on the substrate surface. For example, their number and / or size per unit area of the substrate surface may vary along a given direction, i. become larger or smaller along a gradient direction.
  • the number of fibers fixed in the surface region in which the color-gradient structure is formed can vary in the direction of the color-progression direction.
  • the fibers of one type are applied to the surface and fixed in the color field in which the adhesive surfaces are located. Unfixed fibers are subsequently removed again.
  • adhesive surfaces may be located in a color field on the at least one substrate surface whose size, starting from an edge of this field, decreases with the distance to this edge. This results in a gradient of the adhesive surface density within the field.
  • Fibers of one type can then be applied to these adhesive surfaces in a preferably uniform density and thereby or subsequently fixed. After removal of unfixed fibers, a gradient of the surface density of the fibers results parallel to the color progression direction of the color gradient structure formed.
  • fibers of a second type may additionally be formed on further adhesive structures having such a surface density gradient, preferably parallel to the color progression direction for the fibers of the first type.
  • the fibers of the second type are applied in a color field on the at least one substrate surface, which is preferably adjacent to the color field and adjacent to this, in which the fibers of the first type are applied.
  • the fibers of both types are preferably applied successively to the at least one substrate surface.
  • the adhesive surfaces of the first type and the adhesive surfaces of the second type are applied successively by the adhesive surfaces for the fibers of the second type are preferably produced only after the fibers of the first type applied, fixed and the unfixed fibers of the first type have been removed again. Only then can the fibers of the second type be applied to the adhesive surfaces provided for them and fixed there, and the unfixed fibers can be removed again.
  • the adhesive structures can, for example, be applied to the at least one substrate surface by means of a printing process or with a dispenser.
  • the adhesive for the adhesive structures may be a hot melt adhesive or a reactive adhesive.
  • the same adhesives as for the finishing of the fibers can be used.
  • the spreading material of the first type and the spreading material of the second type can be sprinkled onto the at least one substrate surface at the same time, for example when using the first embodiment described for producing the color gradient structure (scattering of the fibers onto the respective other color field), or successively, for instance also through Scattering the fibers onto the respective other color field or by forming the color gradient structure by means of a position-variable surface property of the at least one substrate surface (in accordance with the last-explained embodiment for generating the color gradient structure).
  • the scattered fibers are fixed after application.
  • hot-melt-fixable fibers they are fixed by introducing heat and, in the case of fibers fixable by means of a reactive adhesive, by irradiation of electromagnetic radiation, for example UV radiation.
  • fixable by means of a hot melt adhesive fibers these can be fixed for example by means of a hot press roll on the surface. If fibers have come onto the surface between individual adhesive structures in the second embodiment variant, which fibers are not fixed, they can subsequently be removed again from the surface, for example by means of a blower or an extraction system.
  • the application device for the fibers may in particular be elongated and extend across the substrate surface. So that fibers can be discharged uniformly from the interior of the housing, the device preferably has a housing in whose housing interior there is, for example, a rotor with blades, which conducts the fibers through a lower slot or through lower slot-like openings. For this purpose, elongated rotor blades pivot at a short distance over the slot and convey the fibers through it. In principle, however, any other structure can also be used for such an application device.
  • At least one substrate surface covered with the fibers is located in the value and / or security product
  • at least those parts of the product which are located between the at least one substrate surface and the fibers by the viewer are preferably transparent or at least translucent and more preferred colorless or possibly only slightly colored in order to recognize the color gradient structure.
  • product material located beyond the at least one substrate surface on which the color gradient structure is formed can also be opaque and optionally colored. Of course, the latter may alternatively also be transparent or translucent and colorless.
  • the color gradient structure formed by the fibers can itself serve as an authenticity feature for the value and / or security product. If different fiber types are used for different product types, for example banknotes with different values, different color combinations can be formed for different color progression structures, so that the security feature according to the invention can also be used as a feature that encodes the value of the product. Therefore, the gradient structure can also encode information.
  • product coding there are also other possibilities for product coding.
  • a value can be coded in each case by means of the different colors and the color transitions between them, so that a complex coding can be achieved by juxtaposing several such colors and color transitions as in a barcode, for example the name of the owner of the product, for example a ID card, or the serial number of a banknote.
  • a plurality of narrow color fields arranged parallel to one another for fibers of a color type with transitions between adjacent color fields can be provided, in which the fibers in the color fields are applied overlapping onto the surface.
  • the gradient structure is preferably formed in a single plane on or in the security and / or security product.
  • the fibers of a first type may be distributed in a first plane and the fibers of a second type in a second plane spaced from the first plane.
  • the optical color impression varies in particular in the transition region between the two color fields depending on the viewing angle to the surface normal, since the two planes spaced from each other are.
  • the fibers of the first and the second type can be applied to the two surfaces of a film, wherein the color fields of both fiber types are arranged in register with each other.
  • the security feature according to the invention can either occupy the entire area of a security and / or security document or only a part thereof.
  • the substrate on whose at least one surface the fibers are applied and fixed there, can be gathered together with further substrates, for example further polymer films or other film-like materials, such as paper, as layers to form a stack, so that the fibers provided / n surface / n outside and / or arranged inside.
  • further substrates for example further polymer films or other film-like materials, such as paper
  • the stack is welded by introducing heat and pressing pressure into a monolithic laminate, preferably the fibers also merge with the surrounding material, so that delamination becomes even more difficult.
  • the security feature is on the outside of the laminate after lamination, it can be protected against tampering by subsequent coating with a protective varnish or with a protective film.
  • this protective lacquer or protective film serves to protect the product against mechanical damage (scratches) during use.
  • the substrate and other substrate layers are formed of polycarbonate, the lamination typically in a hot / cold laminating press in a first step at 170 to 200 ° C and a pressure of 50 to 600 N / cm 2 and in a second step with cooling carried out at about room temperature and under the same pressure.
  • the lamination takes place at a higher temperature, for example at 220 ' ⁇ .
  • the polymer films typically have a thickness of from 25 to 150 ⁇ m, preferably from 50 to 100 ⁇ m.
  • the laminates produced can, for example, represent card-shaped objects or be singulated into card-shaped individual uses. In principle, the laminate can also be a structure for a multi-ply banknote.
  • FIG. 1 shows an inventive value and / or security product in the form of an identity card (ID card) with the security feature according to the invention;
  • ID card identity card
  • FIG. 1 shows an inventive value and / or security product in the form of an identity card (ID card) with the security feature according to the invention;
  • A schematic perspective view when illuminated with visible light;
  • B schematic perspective view when illuminated with UV light;
  • C detailed view of the security feature according to the invention with the color gradient structure;
  • Fig. 2 shows a device for applying and fixing fibers on a belt-shaped substrate in a schematic side view
  • Fig. 3 shows a belt-shaped substrate and an application device for spreading fibers of two types onto the surface of the substrate; (A) schematic plan view; (B) schematic front view;
  • Fig. 4 shows a belt-shaped substrate and an application device for spreading fibers of two types on the surface of the substrate, wherein the application device has two applicators for the two types of fibers;
  • A schematic plan view;
  • B schematic sectional views of the first and the second applicator;
  • B1 section along B1;
  • B2 section along B2;
  • FIG. 5 shows a belt-shaped substrate and application devices for spreading fibers of two types and for applying adhesive structures to the surface of the substrate in a schematic plan view
  • FIG. 6 shows a section through a mottled fiber core and sheath.
  • Fig. 7 shows a commissioned work in section from above to form a star-shaped gradient structure
  • FIG. 8 shows a color gradient structure in the form of a star-shaped area in a different-colored color field.
  • the ID card 100 has a front side 101 and a rear side (not shown) (FIGS. 1A, 1B).
  • the front side has a plurality of personal information fields 102, 103, 104 (such as the face image, name, date of birth of the card holder and a personal number) identifying the card holder.
  • This data is generated on the inside of a surface in the card, ie, for example under a protective coating, in order to prevent manipulation of this card and also to avoid mechanical damage to the card.
  • this card 100 has a security feature 200 according to the invention. This feature is shown in detail in FIG. 1C. It has two partial fields 201, 202, in which mottled fibers of different types 210, 220 are located.
  • the mottled fibers have a diameter of 40 ⁇ m and a length of 5 mm.
  • the two types are distinguished by luminescent substances contained therein, which can be made visible by illuminating the security feature with UV radiation, for example at 365 nm.
  • the mottling fibers result within the subfields in each case a color impression, which is caused by the different luminescence colors of the two fiber types.
  • first-type mica fibers 210 and second-type mica fibers 220 there are both first-type mica fibers 210 and second-type mica fibers 220.
  • FIG which is primarily the second-type mica fibers 220, and vice versa, results in a color impression characterized by a color gradient from the luminescent color of the mica fibers of the first type to the luminescent color of the mica fibers of the second type.
  • the color gradient structure 208 formed in this way which is formed by the transition region 205, runs parallel to the delimiting edge 209, via which both subfields 201, 202 adjoin one another, namely from one subfield to the other subfield.
  • a color transition structure 208 is interposed a green area 206 in the first subfield 201 and a red area 207 in the second subfield 202.
  • the color gradient structure 208 is formed, in which mixed colors of both types of mica fiber result. Since the two colors are formed by luminescence, an additive color mixture, for example according to the RGB color space, arises.
  • the security feature 200 is therefore barely visible under pure illumination with light in the visible spectral range (VIS), possibly by scattering of the light by the fibers 210, 220 or by their intrinsic coloration (FIG. 1A). Only when illuminated with UV radiation (UV) does the inventive color progression structure 208 appear (FIG. 1B).
  • VIS visible spectral range
  • UV UV radiation
  • a device 300 for applying mottled fibers 210, 220 to the top 401 of a belt-shaped substrate 400 and fixing the mottled fibers thereon is shown.
  • the Tape is, for example, an 80 ⁇ thick transparent and colorless polycarbonate film.
  • This tape is first wound on a first roller 31 1, is unwound from this for sprinkling with the mottled fibers and rewound after sprinkling and fixing on a second roller 312 (reel-to-reel). Between both rollers, the belt runs on a horizontal path and is held and guided by guides (not shown) (for example rollers) for this purpose.
  • an application device (a commissioned work) 500 for spreading the mottled fibers and a fixing device 600, which serves to fix the scattered fibers on the surface of the tape.
  • the strip is preferably fed to the application device preheated (not shown).
  • the mottled fibers 210, 220 are again formed from materials which, depending on the type, for example, luminesce green or red.
  • the mottled fibers are at least partially formed from a hot-melt adhesive.
  • the fibers may be made by extruding a plurality of polymers, such as polyamide, and chopping the strand obtained.
  • the mottled fibers are formed by a core 21 1 and a sheath 212 surrounding the core (FIG. 6). This coat is made by the hotmelt adhesive. It consists of PA6, for example.
  • the jacket also contains the luminescent substances which produce the green or red luminescence color.
  • the applicator 500 is formed by a housing 510 with a plurality of juxtaposed housing interior 520.
  • the housing extends perpendicular to the plane of the figure.
  • mordant fibers are of one of two types 210, 220.
  • the mottling fibers of a first type 210 that luminesce with green luminescent color, seen in the transport direction T are on the left side and the mordant fibers of a second type 220, the luminescent with red luminescent color, seen in the transport direction, on the right side.
  • the mottled fibers are circulated in the housing interior spaces by means of a rotor 540 having blades 541 and are transported out of the interior spaces through a slot 550, 550 'located in the bottom wall of the housing. This forms a curtain of falling out of the commissioned mica fibers that fall at a distance a on the top 401 of the belt 400 and remain there.
  • Preheating the band fixes the mottling fibers on the band.
  • the area of the strip coated with the fibers is then transported under a fixing device 600, melted by means of the hotmelt adhesive of the fiber mantle 212 of the mottled fibers and pressed onto the surface of the strip.
  • a hot press roll is used as a fixing device. After passing through the fixing device, the mottling fibers firmly adhere to the top of the belt. After the tape has cooled, it can be wound up on the second roll 312.
  • FIG. 3 a device 300 for spreading the mottled fibers of the first type 210 and of the second type 220 from a coater 500 is shown partially in detail to form a security feature 200 according to the invention.
  • the mica fibers of the first type 210 luminesce green upon UV excitation and the mica fibers of the second type 220 luminesce red.
  • Fig. 3A shows the tape 400 in a plan view with the two color patches 201, 202 in which the mottled fibers are scattered onto the surface 401 of the tape. On the right next to the two color fields, an edge region 402 is also arranged, onto which no mottled fibers are sprinkled.
  • the application device 500 having the applicator extends transversely to the direction of tape transport T and exclusively over the area of the two color fields in which mottled fibers are scattered onto the belt.
  • the housing 510 of the commissioned work has the two by a partition 530 separated from each other interior spaces 520, 520 '.
  • Melierfasern each one of the two types are housed in one of the two interiors.
  • mordant fibers of the first type 210 and in the right interior 520 'there are mottled fibers of the second type 220.
  • a distance a is set between the lintels 550, 550' of the commissioned work and the belt surface 401.
  • the mottled fibers do not fall down exactly vertically but partly also laterally in the direction of the respectively adjacent color field for the other mica fiber type (FIG. 3B)
  • the melior fibers of both types are also scattered into the other color field, so that the scattering ranges of the two types overlap in a transition region 205.
  • the spread density of the mica fibers of the one type further decreases, the farther a land for the mottled fibers from the edge 209 delimiting the two color patches is, the lower the density of mordant fibers of one type scattered into the patches of the other type.
  • FIG. 4 shows a further apparatus 300 for spreading mordant fibers of two types 210, 220 on the upper side 401 of a band-shaped film 400 in order to form a security feature 200 according to the invention.
  • two commissioned work 500, 500' are provided, of which the first commissioned work 500 a housing interior 520 with two stray wires 550 for the First type mordanting fibers 210 and second applicator 500 'have a housing interior 520' with a lintel 550 'for the second type mottle fibers 220.
  • Mica fibers of the first type luminesce green upon UV excitation and mica fibers of the second type red.
  • the applicators are arranged spaced apart in the direction of transport T of the tape, so that the film successively passes these two commissioned works. First, the film passes through the first coater 500, the side sectional view of which is shown in Fig. 4B1.
  • the mottled fibers 210 are sprinkled on two outer strip-shaped fields 201, 201 'of the film 400, wherein a portion of the fibers on the strip-shaped center panel 202 of Foal falls. From the second coater 500 ', the mottled fibers of the second type 220 fall out centrally through a slot-shaped opening 550', so that they are sprinkled in particular into the stripe-shaped midfield 202 on the film 400, but also partially into the edge regions of the strip-shaped edge fields 201, 201 '. fall.
  • the scattering of the mottled fibers on the edge region 402 of the film is prevented by means of the diaphragms 560, 560 '.
  • FIG. 5 further shows how mottled fibers of two types 210, 220 can be used to produce a color gradient structure 208 by a variable positional variation of the surface property of the upper side 401 of the belt 400.
  • the strip is in turn a polycarbonate film which can be, for example, 80 ⁇ m thick.
  • the mottled fibers consist in the core of PA 6.6.
  • the jacket 212 has hot melt adhesive properties.
  • the jacket also contains in each case a luminescent substance, namely mottled fibers of a first type 210 a green lumi-
  • the nescent and mottled fibers of a second type 220 have a red luminescent substance.
  • the mottled fibers of the first type are located in the housing interior 520 of a first applicator 500, and the mottling fibers of the second type 220 are located in the housing interior 520 'of a second applicator 500'.
  • the belt 400 is conveyed in the transporting direction T. It has a region of two color fields 201, 202 which adjoin one another and which adjoin one another via the delimiting edge 209 and which extend in the longitudinal direction of the strip. In the area of the color fields 201, 202, the security feature 200 according to the invention is formed.
  • the belt also has a free edge region 402, which is located on the left side of the belt in the transport direction and in which no mottled fibers are applied.
  • the belt 400 first reaches a first printing device 700 for applying an adhesive into the color fields 201, 202 to be spread with the mottled fibers.
  • adhesive 810 is applied over the whole area.
  • first adhesive structures in the form of, for example, circular surfaces 820 of varying density, in this case of different size, are applied to the surface of the belt.
  • the adhesive is made of PA6, for example.
  • the circular adhesive structures are applied to the tape surface 401 in an area near a line 209 separating the left and right color patches 201 and 201 in the left color field.
  • the areal density of the adhesive within the left color field decreases with the distance from this line to the left and drops to zero within a distance of about 40% of the way to the left edge of the left color field.
  • the Klebe phytogradient is thus generated by a varying size of the adhesive surfaces. Alternatively or additionally, the distance between adjacent adhesive surfaces could also be varied.
  • mottling fibers of the first type 210 are scattered by means of the first application unit 500 onto both color fields 201, 202.
  • the band By preheating the band, however, only the fibers falling on the upper side 401 of the band 400 remain adhered to the adhesive 810 applied over the entire area in the right color field 201 and to the adhesive structures 820 in the left color field 202.
  • the surface density of the adhesive structures drops from the dividing line 209 to the left edge of the left color patch, the number of adherent fibers per unit area drops from this dividing line to the opposite edge, with the density of mottled fibers already dropping to zero within the left color patch.
  • a first device is also integrated with which fibers not adhering to the left color field 202 are again removed from the surface, for example by blowing off or suction (not shown separately).
  • the mottled fibers 210 are then bonded to the adhesive by means of a first hot press roll 600 on the surface.
  • this fixing unit is located in the first commissioned unit having unit.
  • second PA6 adhesive over the entire surface 810' applied.
  • second PA6 adhesive structures in the form of, for example, circular areas 820 'are applied to the surface 401 of the tape 400 in varying density.
  • the circular adhesive structures are applied to the tape surface in an area near the line 209 separating the right color patch 201 and the left color patch 202 in the right color patch.
  • the area density of the adhesive structures decreases within the right color field with the distance from the dividing line and falls within a distance of about 40% of the way to the opposite edge of the right color field to zero.
  • the adhesive surface gradient is generated by a varying size of the adhesive surfaces. Again, alternatively or additionally, the distance between adjacent adhesive surfaces can be varied to produce a density gradient.
  • mottled fibers of a second type 220 are scattered by means of a second applicator 500 'onto the left color field 202 and onto the right color field 201.
  • the fibers falling on the adhesive surface remain adhered to the adhesive 810 'applied over the entire surface and to the adhesive structures 820'. Since the surface density of the adhesive structures drops from the dividing line 209 between the two color fields to the right edge of the right color field 201, the number of adhering fibers per unit area also drops from this dividing line to the opposite edge, the density of mottled fibers already falling inside the right Color field drops to zero.
  • a second device is also integrated with which fibers not adhering to the right color field 201 in particular are removed again from the surface, for example by blowing off or sucking off (not shown separately).
  • the mottled fibers 220 In order to firmly bond the mottled fibers 220 to the belt surface 401, they are then bonded to the adhesive by a second hot press roll 600 'on the surface.
  • This fixing unit is located in the second commissioned unit having unit.
  • mottled fibers of one type each namely mottled fibers of the first type 210 in the transport direction T, right color field 201 and mottling fibers of the second type 220 in, as seen in the transport direction, left Color field 202.
  • mica fibers of each other type are located near the parting line 209 in the adjacent color field, with their fiber density decreasing from the parting line 209 between both color fields toward the respective field center. This results in a color gradient structure 208 in a transition region 205 in which the fiber gradients are adjusted.
  • the band 400 under excitation radiation for luminescence in the case of the aforementioned rare earth doped host lattices with radiation in the UV spectral range, the luminescence produced by the mottled fibers appears to form the color gradient structure.
  • the color gradient structure 208 that can be produced with the device shown in FIG. 5 can also be produced by the following procedure:
  • mulching fibers of the first and the second colorant 202 are also respectively applied used second type, which are additionally equipped with a hot melt adhesive. These are sprinkled with exact area in the respective color fields on the strip surface 401 and then fixed there.
  • the device of FIG. 3 be used. This approach is advantageous because, apart from the isolated circular adhesive structures, no additional adhesive layers are applied to the substrate surface, which could weaken the adhesive bond of a laminate containing this substrate.
  • the strip material produced with the devices of FIGS. 3, 4 and 5 and sprinkled with mottling fibers 210, 220 is cut in a further method step, for example, into multiple uses, then combined with further films in a corresponding format to form a stack.
  • the stack is finally laminated in a hot / cold laminating press. The resulting laminates are then singulated for single use.
  • a device 300 can be used in which the substrate 400 is not moved relative to the application device 500 of the application device (FIG. 7).
  • the commissioned work has two housing internal spaces 520, 520 'for the two types of mica fibers 210, 220, which are separated from one another by a star-shaped partition 530 in the form of the boundary line of the two color patches 201, 202 on the substrate surface 401 (FIG. 8).
  • a star-shaped partition 530 in the form of the boundary line of the two color patches 201, 202 on the substrate surface 401.

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  • Manufacturing & Machinery (AREA)
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Abstract

L'invention concerne une caractéristique de sécurité (200) nouvelle pour un produit de valeur et/ou de sécurité (100), formée par une substance épandue d'au moins un premier type (210) et d'un deuxième type (220) fixée sur au moins une surface (401) d'au moins un substrat (400). La substance épandue du premier type (210) apparaît à l'œil humain dans une première couleur, la substance épandue du deuxième type (220) dans une deuxième couleur. La substance épandue du premier type (210) et la substance épandue du deuxième type (220) forment sur la ou les surfaces (401) du ou des substrats (400) une structure (208) ayant un motif de couleurs qui se fondent les unes dans les autres.
PCT/EP2013/073550 2012-11-13 2013-11-12 Caractéristique de sécurité pour un produit de valeur et/ou de sécurité, ce produit de valeur et/ou de sécurité, et procédé de réalisation de la caractéristique de sécurité WO2014076049A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13796015.9A EP2920002B1 (fr) 2012-11-13 2013-11-12 Element de securite pour un document de securite, un document de securite et un procede de fabrication d'un element de securite.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012220701.5A DE102012220701A1 (de) 2012-11-13 2012-11-13 Sicherheitsmerkmal für ein Wert- und/oder Sicherheitsprodukt, das Wert- und/oder Sicherheitsprodukt und Verfahren zum Herstellen des Sicherheitsmerkmals
DE102012220701.5 2012-11-13

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WO2014076049A1 true WO2014076049A1 (fr) 2014-05-22

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EP (1) EP2920002B1 (fr)
DE (1) DE102012220701A1 (fr)
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WO2017102723A1 (fr) * 2015-12-17 2017-06-22 Sicpa Holding Sa Élément de sécurité composé d'au moins deux matériaux présents dans des zones de chevauchement partiel ou total, articles comportant l'élément de sécurité, et procédés d'authentification
WO2017102722A1 (fr) * 2015-12-17 2017-06-22 Sicpa Holding Sa Élément de sécurité constitué d'au moins deux encres appliquées dans des motifs superposés, articles comportant l'élément de sécurité, et procédés d'authentification
CN107148357A (zh) * 2015-01-09 2017-09-08 大日本印刷株式会社 发光介质及发光介质的读取方法
US11241828B2 (en) 2016-04-28 2022-02-08 Hewlett-Packard Development Company, L.P. 3-dimensional printing
US11427725B2 (en) 2016-04-28 2022-08-30 Hewlett-Packard Development Company, L.P. Photoluminescent material sets
US11465341B2 (en) 2016-04-28 2022-10-11 Hewlett-Packard Development Company, L.P. 3-dimensional printed parts

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DE102016011170B4 (de) 2016-09-16 2018-04-26 Mobo Etiketten Gmbh Verfahren zur Sicherung einer Vielzahl von Produkten mit jeweils einer einmaligen und eindeutigen Farbmarkierung

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