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EP1099024B1 - Antifalsification paper - Google Patents

Antifalsification paper Download PDF

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Publication number
EP1099024B1
EP1099024B1 EP99931205A EP99931205A EP1099024B1 EP 1099024 B1 EP1099024 B1 EP 1099024B1 EP 99931205 A EP99931205 A EP 99931205A EP 99931205 A EP99931205 A EP 99931205A EP 1099024 B1 EP1099024 B1 EP 1099024B1
Authority
EP
European Patent Office
Prior art keywords
coating
paper
security
security paper
composition
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.)
Revoked
Application number
EP99931205A
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German (de)
French (fr)
Other versions
EP1099024A1 (en
Inventor
Reinhard Plaschka
Theo Burchard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and Devrient GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Giesecke and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Priority to SI9930565T priority Critical patent/SI1099024T1/en
Priority to EP03017392A priority patent/EP1365069A3/en
Publication of EP1099024A1 publication Critical patent/EP1099024A1/en
Application granted granted Critical
Publication of EP1099024B1 publication Critical patent/EP1099024B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/445—Marking by removal of material using chemical means, e.g. etching
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Definitions

  • the invention relates to a security paper for the production of documents of value, such as banknotes, passports, ID cards or the like, that with is provided with a coating that ensures increased fitness for circulation and a method for producing such security paper.
  • Banknotes are usually made from so-called security papers, which consist of cotton fibers and special security features, like a security thread at least partially worked into the paper and have a watermark.
  • the period of circulation of a banknote depends depending on the stress. Certain denominations are preferred in trade used and therefore show due to the greater load Environmental influences a shorter orbital period.
  • AU-PS 488,652 has therefore already proposed banknotes in full to manufacture from a plastic substrate.
  • security elements such as portrait watermarks and window security thread are dispensed with, as well on the special properties, such as the sound and grip of the banknote paper.
  • WO 96/28610 describes a method for producing security paper known in which the paper was glued and then on at least one Page is coated with a paper properties like an improved resistance to dirt, gives good adhesive properties for printing ink, no significant influence on the "handle" of the Paper, resistance to absorption of optical brighteners, and good visibility of security features due to the transparency of the coating.
  • the coating is based on polyurethane. Extenders can be used in the polyurethane be included, for example polyacrylate, styrene-acrylic copolymers, acrylated Vinyl acetate, vinyl chloride-ethylene copolymers or vinyl acetate copolymers. It should be noted that such polymers alone are not are usable, but only as extenders in connection with polyurethane.
  • the Coating can also contain additives, for example fluorescent ones or iridescent pigments, but also numerous other additives, such as catalysts, emulsifiers, defoamers or thickeners.
  • the object of the invention is therefore a further improved security paper to provide, which is dirt-repellent and therefore has a long circulation period, and that in its other typical properties, such as printability, Sound, color, etc. remains unchanged.
  • the security paper is at least on one of its Surfaces provided with a coating that consists of a composition exists, which contains only a binder and no fillers.
  • Binders in the sense of the invention form all substances that are common Solvents form insoluble films or structures. It is essential that unlike conventional coating materials, the binder does not contain any Fillers, i.e. Contains pigments, such as titanium dioxide, in high concentrations. This composition wets the fibers in the surface area of the Paper and forms a closed surface film over the fiber. This minimizes dirt access to the fiber
  • the composition is applied in a layer thickness so that on the one hand a sufficiently smooth surface is created and there are as few possibilities for dirt accumulation as possible. On the other hand, the layer thickness is so small that the other properties of the paper, such as its grip and printability, are not impaired.
  • the weight per unit area of the coating is preferably about 1 to 6 g / m 2 , in particular 2 to 3 g / m 2 .
  • the transmission properties remain due to the low coating thicknesses of the paper unchanged so that the recognizability of possible Portrait watermark in security paper not affected becomes.
  • the coating also has the advantage that it is based on the usual sizing of the paper can be dispensed with. Also the type of security paper there are no conditions attached to it, so usual security papers from fibers of annual plants, in particular cotton fibers Can be used, but also security papers, at least partially made of plastic fibers, preferably polyamide fibers.
  • Acrylate systems have a number of advantages other, for example based on polyurethane binder systems on. So they have better printing properties and basically contain less solvent, so less processing Environmental pollution occurs.
  • the acrylate coatings also stand out by a higher surface hardness, so that the dirt-repellent Effect is improved.
  • the acrylate systems offer the advantage that they are significantly cheaper than other binder systems and can be mixed well with other polymers.
  • the binder composition is applied to the paper after it is made doctored or printed. This can be done immediately after the Paper production in the paper machine or in a separate operation, for example, directly before printing on the security paper. If necessary, the smoothness of the surface can then be adjusted accordingly Calendering can still be increased.
  • the coated according to the invention Paper offers an ideal printing surface for high print resolution and very good ink adhesion for physical and / or chemical Attack attempts.
  • the security paper according to the invention is then correspondingly printed on the security to be manufactured and possibly further processed.
  • the imprint with another Binder layer e.g. to cover a layer of lacquer.
  • the paint layer is preferably in its composition to the invention Undercoat layer matched to a good bond between the two Enable layers. Possibly the network can be supplemented by an Networking step can still be improved. This can be done by Exposure to heat or radiation (e.g. with UV radiation).
  • the binder composition of the invention according to the printing process used in addition to the low soiling also improves the adhesion of the printing inks to ensure on the substrate.
  • Another advantage of the invention can be seen in that on another Pretreatment of the security paper according to the invention can be dispensed with can, if optically variable security elements are provided on paper should be.
  • Optically variable elements or printing inks due to of light diffraction or interference a viewing angle dependent Show play of colors need one for good visibility of this effect as smooth a surface as possible.
  • Security elements of this type are, for example Holograms, kinegrams or other diffraction structures, but also printing inks, the interference layer or liquid crystal pigments or contain other effect pigments, such as shiny metallic effect color pigments.
  • liquid crystal pigments and interference layer pigments made only with titanium dioxide coated mica platelets are translucent, so that the color effect not only from the smoothness but also from the color of the Is influenced underground.
  • a black background absorbs that from light transmitted to the pigments and in this way increases the brilliance of the colors reflected by the pigments.
  • security elements which are made up of several thin layers and also show a play of colors based on interference effects. For this and similar Items, it may be necessary to have the security paper in the area of the security element to be applied with a further background layer to provide.
  • a security element machine or visually verifiable authenticity feature such as it is known from WO 97/35732.
  • the coating according to the invention also has an advantageous effect other security elements.
  • Embossed structures for example, are becoming more concise, because the embossing is more pronounced due to the smoother surface.
  • the embossments are also more durable, because not only the paper fibers be shaped.
  • the coating composition contains additionally at least one substance in low concentration with a visually and / or machine-detectable physical property.
  • the material can for example be magnetic, electrically conductive, light diffractive, have light polarizing or light interfering properties and can be evenly distributed over the entire coating are present or applied in the form of patterns.
  • the remaining sample is kept in register with the first sample Part of the surface of the paper with the same composition, which, however, does not contain the detectable additive.
  • additives can be luminescent substances, for example act that can be excited with UV light and in the visual spectral range emit. In the case of a machine check, however, the invisible spectral range, preferably emitting in the IR spectral range Luminescent substances are used. Likewise are photochromic or thermochromic additives conceivable.
  • ком ⁇ онент a component a color reaction system admixed with the binder composition and applied to the paper. Bring it to a later one The second component of the color reaction system, see above a colored area, pattern, lettering or the like visible. This can serve as an authenticity feature or as Revaluation indicator of a check, ticket or the like.
  • Concentration of one or more additives can very easily be any Codings, for example in the form of a barcode, on the security paper be generated.
  • This coding can, for example, be an independent one represent additional security feature or as a comparative feature for other data already provided on the security paper serve. In this way, visually visible information such as for example the denomination, the name of one shown in the portrait Person or the like encrypted and in the form of the invention Coding invisible to the eye on the paper.
  • the coding is read and decrypted during a machine check and checked for identity with the corresponding, visually visible information.
  • the coating according to the invention can also have recesses.
  • These recesses can be any Shape, e.g. Have stripe shape. They will be before or after Applying the coating according to the invention with an imprint, which has certain effect colors. With these effect colors it can are interference layer pigments, liquid crystal pigments or others Trade glossy pigments. This imprint can show the cutouts cover all or part of it.
  • the security paper according to the invention can also be advantageous, for example used for the production of ID cards and passports. Because it has increased tear resistance and dirt resistance, can under certain circumstances, the usual lamination with plastic films is dispensed with become. If lamination is nevertheless carried out, the invention provides Coating for a firm, inseparable bond between paper and cover layer.
  • a 100% cotton banknote paper with a filler content of 3.0% is used for the coating test.
  • the paper is through Use of commercially available melamine resin (e.g. Madurit MW167) on one Wet strength set at 50% relative to the dry strength.
  • Acronal 320D (BASF) - aqueous dispersion of an acrylic resin - 400 ml Softened water 600 ml.
  • the mixture is prepared by stirring and applied to the surface of the Paper applied. A rotating pair of rollers is used for this, the lower side in a bowl with the diluted Acronal dispersion dips. The excess of the suspension is pressed through the nip. The paper is then removed using a commercially available photo dryer dried.
  • the treatment gives the paper the following properties: characteristics before treatment after treatment Air permeability 25 ml / min 5 ml / min Water absorption 60 sec 50 g / m 2 20 g / m 2 Oil intake GFL 30 sec 150 sec
  • Neocryl-AC 72 (Zeneca) - aqueous dispersion of an acrylate - 900 ml water 80 ml CX 100 crosslinker (Zeneca) 20 ml
  • the paper can also be coated with the following binder composition: Primal I-545 (Rohm & Haas) - aqueous dispersion of an acrylate - 900 ml water 80 ml Zirconium carbonate (Auer Remy) 20 ml.
  • FIG. 1 shows a section of a security paper web according to the invention 1, as used for example for the production of banknotes becomes.
  • security paper is usually made of cotton fibers or other fibers made from annual plants. For some However, it may also be useful to use some of these natural applications Fibers through plastic fibers, especially polyamide fibers replace. But pure plastic fiber papers are also conceivable.
  • This security thread 2 becomes quasi woven into the paper so that it is in areas 3 directly to the surface of the paper occurs while it is in the dotted areas is completely embedded in the paper pulp.
  • This thread 2 can with any Security features, such as an electrically conductive, metallic Layer, a hologram or the like.
  • the invention Security paper 1 consists of the base paper 4, as is the paper machine usually leaves, and the binder coating according to the invention 5, which, according to the embodiment shown, covers an entire surface Surface of the security paper 1 was squeegee or printed. Alternatively, however, the coating 5 can also be applied to the security paper on both sides 1 are applied.
  • FIG. 3 and 4 show a further embodiment of the invention Security paper 1.
  • Fig. 4 is a section through this invention Security paper 1 along the dash-dotted line in FIG. 3 Line A - B shown.
  • the security paper 1 also consists of a conventional one Paper web 4 made according to the invention with a pure binder composition is provided without fillers.
  • the binder layer sets but from different areas 6, 9 together.
  • the binder composition is doped with an additive, which can be checked visually and / or by machine, while the remaining areas 9 contain no additive in the binder composition.
  • the also with the Areas 7 shown doped binder composition form a Coding 8 in the form of a bar code.
  • the additive can be, for example, one less than normal Illumination act as transparent luminescent substance when irradiated emitted with UV light in the visual spectral range and thus an intense one Hue shows.
  • the information is 6, 8 as in FIG. 3 shown, only visible under UV lighting.
  • the information 6 can be visualized with the aid of a Spectal region emitting luminescent substance are generated during the barcode 8 with the aid of a substance that can only be detected by machine, e.g. of a luminescent substance emitting in the IR spectral range becomes.
  • the characters 6 that are visually visible under UV illumination can be used for example represent an image, pattern or legible information.
  • the machine readable code 8 could be intended for the individual Information identifying the value document, possibly in encrypted form Represent form. This information could be the Paper material inherent properties, such as the transmission properties, Thickness distribution, etc. act or others for the respective document of value essential information, such as denomination or the like.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)
  • Credit Cards Or The Like (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Catching Or Destruction (AREA)
  • Control Of Combustion (AREA)
  • Glass Compositions (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

The security structure of paper (1), to prevent forgery, has a coating (5) on at least one side in a composition which contains simply a bonding agent without any filling materials. The composition gives a coating weight of 1-6 g/m2 and preferably 2-3 g/m2 on the paper. The bonding agent in the coating composition is an acrylate or a mixture of polymers or copolymers with a high acrylic content. The composition has at least one material, in a small concentration, with a visual and/or machine readable characteristic. The material can also be luminescent, magnetic, electrically conductive, light refractive or interfering or polarizing. The added material is present only partially in the coating, preferably as a pattern. The paper is of fibers from annual plants, and preferably cotton, and it can be at least partially of synthetic fibers and preferably of polyamide. The paper is not glued. The coating is applied only partially over the paper surface, and the uncoated zones are printed with effect ink pigments. The printing on the paper can also be covered by the applied coating. An Independent claim is included for a production process where the paper is produced on a papermaking machine, followed by surface coating with a number of layers in register. The paper can be glued before coating.

Description

Die Erfindung betrifft ein Sicherheitspapier zur Herstellung von Wertdokumenten, wie Banknoten, Pässen, Ausweiskarten oder dergleichen, das mit einer Beschichtung versehen ist, die eine erhöhte Umlauffähigkeit gewährleistet sowie ein Verfahren zur Herstellung eines derartigen Sicherheitspapiers.The invention relates to a security paper for the production of documents of value, such as banknotes, passports, ID cards or the like, that with is provided with a coating that ensures increased fitness for circulation and a method for producing such security paper.

Banknoten werden üblicherweise aus sogenannten Sicherheitspapieren gefertigt, die aus Bauwollfasern bestehen und besondere Sicherheitsmerkmale, wie einen zumindest teilweise in das Papier eingearbeiteten Sicherheitsfaden und ein Wasserzeichen aufweisen. Die Umlaufdauer einer Banknote hängt von der Beanspruchung ab. Bestimmte Stückelungen werden im Handel bevorzugt benutzt und weisen damit aufgrund der stärkeren Belastung durch Umwelteinflüsse eine geringere Umlaufzeit auf. Als Hauptursache für die eingeschränkte Umlaufzeit von Banknoten gilt die frühzeitige Verschmutzung. Da Banknotenpapier sehr porös ist, besitzt es eine große Oberfläche bzw. eine hohe Oberflächenrauigkeit. Auch wenn die hieraus resultierenden Vorsprünge und Hohlräume in Größenordnungen liegen, die vom menschlichen Auge nicht mehr aufgelöst werden können, so bieten sie doch im Vergleich zu einer glatten Oberfläche ideale Verhältnisse für Schmutzablagerungen.Banknotes are usually made from so-called security papers, which consist of cotton fibers and special security features, like a security thread at least partially worked into the paper and have a watermark. The period of circulation of a banknote depends depending on the stress. Certain denominations are preferred in trade used and therefore show due to the greater load Environmental influences a shorter orbital period. As the main cause of the limited circulation time of banknotes applies to early pollution. Since banknote paper is very porous, it has a large surface area or a high surface roughness. Even if the resulting ones Projections and cavities are on the order of magnitude from human Eye can no longer be resolved, so they offer in comparison ideal conditions for dirt deposits on a smooth surface.

In der AU-PS 488,652 wurde daher bereits vorgeschlagen, Banknoten vollständig aus einem Kunststoffsubstrat zu fertigen. Allerdings muss in diesem Fall auf die üblichen und bewährten Sicherheitselemente, wie Portrait-Wasserzeichen und Fenstersicherheitsfaden verzichtet werden, ebenso wie auf die besonderen Eigenschaften, wie Klang und Griffigkeit des Banknotenpapiers. Auch die im Banknotenbereich übliche Bedruckung im Stahltiefdruck, der aufgrund des durch den Farbauftrag entstehenden Reliefs als zusätzliches taktiles Echtheitskennzeichen dient, führt auf Kunststoffsubstraten lediglich zu einem flachen, kaum spürbaren Relief. AU-PS 488,652 has therefore already proposed banknotes in full to manufacture from a plastic substrate. However, in this Fall on the usual and proven security elements, such as portrait watermarks and window security thread are dispensed with, as well on the special properties, such as the sound and grip of the banknote paper. The printing in steel intaglio printing that is common in the the additional due to the relief created by the application of paint tactile authenticity mark, leads on plastic substrates just a flat, barely noticeable relief.

Aus der WO 96/28610 ist ein Verfahren zur Herstellung von Sicherheitspapier bekannt, bei dem das Papier beleimt und anschließend auf mindestens einer Seite mit einer Beschichtung versehen wird, die dem Papier Eigenschaften verleiht wie eine verbesserte Beständigkeit gegen Verschmutzen, gute Hafteigenschaften für Druckfarbe, keine wesentliche Beeinflussung des "Griffs" des Papiers, Beständigkeit gegen Aufnahme optischer Aufheller, und gute Sichtbarkeit von Sicherheitsmerkmalen wegen der Transparenz der Beschichtung. Die Beschichtung basiert auf Polyurethan. In dem Polyurethan können Extender enthalten sein, beispielsweise Polyacrylat Styrol-Acryl-Copolymere, acryliertes Vinylacetat, Vinylchlorid-Ethylen-Copolymere oder Vinylacetat-Copolymere. Es wird darauf hingewiesen, dass derartige Polymere alleine nicht brauchbar sind, sondern nur als Extender in Verbindung mit Polyurethan. Die Beschichtung kann außerdem Zusatzstoffe enthalten, beispielsweise fluoreszierende oder irisierende Pigmente, aber auch zahlreiche andere Zusatzstoffe, wie Katalysatoren, Emulgatoren, Entschäumer oder Verdickungsmittel. WO 96/28610 describes a method for producing security paper known in which the paper was glued and then on at least one Page is coated with a paper properties like an improved resistance to dirt, gives good adhesive properties for printing ink, no significant influence on the "handle" of the Paper, resistance to absorption of optical brighteners, and good visibility of security features due to the transparency of the coating. The coating is based on polyurethane. Extenders can be used in the polyurethane be included, for example polyacrylate, styrene-acrylic copolymers, acrylated Vinyl acetate, vinyl chloride-ethylene copolymers or vinyl acetate copolymers. It should be noted that such polymers alone are not are usable, but only as extenders in connection with polyurethane. The Coating can also contain additives, for example fluorescent ones or iridescent pigments, but also numerous other additives, such as catalysts, emulsifiers, defoamers or thickeners.

Die Aufgabe der Erfindung besteht daher darin, ein weiter verbessertes Sicherheitspapier bereitaustellen, das schmutzabweisend ist und daher eine hohe Umlaufdauer aufweist, und das in seinen übrigen typischen Eigenschaften, wie Bedruckbarkeit, Klang, Farbe etc. unverändert bleibt.The object of the invention is therefore a further improved security paper to provide, which is dirt-repellent and therefore has a long circulation period, and that in its other typical properties, such as printability, Sound, color, etc. remains unchanged.

Aufgabe der Erfinding ist es auch, ein Wertdokument bereitzustellen, das ein derartiges Sicherheitspapier aufweist, sowie ein Verfahren zur herstellung des Sicherheitspapiers bereitzustellen.It is also the task of the inventor to create a document of value to provide, which has such a security paper, and to provide a method for producing the security paper.

Die Lösung dieser Aufgaben ergibt sich aus den unabhängigen Ansprüchen 1, 11 und 13. Weiterbildungen sind Gegenstand von Unteransprüchen.The solution of these tasks results from the independent claims 1, 11 and 13. Further training is the subject of subclaims.

Gemäß der Erfindung wird das Sicherheitspapier zumindest auf einer seiner Oberflächen mit einer Beschichtung versehen, die aus einer Zusammensetzung besteht, die lediglich ein Bindemittel und keine Füllstoffe enthält. Ein Bindemittel im Sinne der Erfindung bilden dabei alle Stoffe, die in gängigen Lösungsmitteln unlösliche Filme oder Strukturen bilden. Wesentlich ist, dass das Bindemittel im Gegensatz zu üblichen Beschichtungsmaterialien keinerlei Füllstoffe, d.h. Pigmente, wie Titandioxid, in hohen Konzentrationen enthält. Diese Zusammensetzung benetzt die Fasern im Oberflächenbereich des Papiers und bildet einen geschlossenen Oberflächenfilm über der Faser. Damit wird der Schmutzzugang zur Faser minimiertAccording to the invention, the security paper is at least on one of its Surfaces provided with a coating that consists of a composition exists, which contains only a binder and no fillers. On Binders in the sense of the invention form all substances that are common Solvents form insoluble films or structures. It is essential that unlike conventional coating materials, the binder does not contain any Fillers, i.e. Contains pigments, such as titanium dioxide, in high concentrations. This composition wets the fibers in the surface area of the Paper and forms a closed surface film over the fiber. This minimizes dirt access to the fiber

Die Zusammensetzung wird hierbei in einer Schichtdicke aufgetragen, dass einerseits eine ausreichend glatte Oberfläche entsteht und so möglichst wenig Möglichkeiten für eine Schmutzanlagerung bestehen. Andererseits ist die Schichtdicke so gering, dass die übrigen Eigenschaften des Papiers, wie seine Griffigkeit und Bedruckbarkeit nicht beeinträchtigt werden. Das Flächengewicht der Beschichtung beträgt hierbei vorzugsweise ca. 1 bis 6 g/m2, insbesondere 2 bis 3 g/m2.The composition is applied in a layer thickness so that on the one hand a sufficiently smooth surface is created and there are as few possibilities for dirt accumulation as possible. On the other hand, the layer thickness is so small that the other properties of the paper, such as its grip and printability, are not impaired. The weight per unit area of the coating is preferably about 1 to 6 g / m 2 , in particular 2 to 3 g / m 2 .

Aufgrund der geringen Beschichtungsstärken bleiben die Transmissionseigenschaften des Papiers unverändert, so dass die Erkennbarkeit von eventuellen Portrait-Wasserzeichen im Sicherheitspapier nicht beeinträchtigt wird. Die Beschichtung hat zusätzlich den Vorteil, dass auf die übliche Leimung des Papiers verzichtet werden kann. Auch an die Art des Sicherheitspapiers sind keine Bedingungen geknüpft, so dass übliche Sicherheitspapiere aus Fasern von Einjahrespflanzen, insbesondere Baumwollfasern verwendet werden können, aber auch Sicherheitspapiere, die zumindest teilweise aus Kunststofftasern, vorzugsweise Polyamidfasern bestehen.The transmission properties remain due to the low coating thicknesses of the paper unchanged so that the recognizability of possible Portrait watermark in security paper not affected becomes. The coating also has the advantage that it is based on the usual sizing of the paper can be dispensed with. Also the type of security paper there are no conditions attached to it, so usual security papers from fibers of annual plants, in particular cotton fibers Can be used, but also security papers, at least partially made of plastic fibers, preferably polyamide fibers.

Als Bindemittel werden ausschließlich Acrylatsysteme verwendet.Only acrylate systems are used as binders.

Acrylatsysteme weisen eine Reihe von Vorteilen gegenüber anderen, beispielsweise auf Polyurethan basierenden Bindemittelsystemen auf. So weisen sie bessere Druckeigenschaften auf und enthalten grundsätzlich weniger Lösungsmittel, so dass bei der Verarbeitung eine geringere Umweltbelastung auftritt. Die Acrylatbeschichtungen zeichnen sich zudem durch eine höhere Oberflächenhärte aus, so dass der schmutzabweisende Effekt verbessert wird. Schließlich bieten die Acrylatsysteme noch den Vorteil, dass sie erheblich kostengünstiger sind als andere Bindemittelsysteme und sich mit anderen Polymeren gut mischen lassen.Acrylate systems have a number of advantages other, for example based on polyurethane binder systems on. So they have better printing properties and basically contain less solvent, so less processing Environmental pollution occurs. The acrylate coatings also stand out by a higher surface hardness, so that the dirt-repellent Effect is improved. Finally, the acrylate systems offer the advantage that they are significantly cheaper than other binder systems and can be mixed well with other polymers.

Die Bindemittelzusammensetzung wird auf das Papier nach seiner Herstellung aufgerakelt oder aufgedruckt. Dies kann direkt im Anschluss an die Papierherstellung in der Papiermaschine oder in einem separaten Arbeitsgang, beispielsweise direkt vor dem Bedrucken des Sicherheitspapiers erfolgen. Bei Bedarf kann die Glätte der Oberfläche anschließend über eine entsprechende Kalandrierung noch erhöht werden. Das erfindungsgemäß beschichtete Papier bietet eine ideale Druckoberfläche für hohe Druckauflösung und sehr gute Druckfarbenhaftung bei physikalischen und/ oder chemischen Angriffsversuchen.The binder composition is applied to the paper after it is made doctored or printed. This can be done immediately after the Paper production in the paper machine or in a separate operation, for example, directly before printing on the security paper. If necessary, the smoothness of the surface can then be adjusted accordingly Calendering can still be increased. The coated according to the invention Paper offers an ideal printing surface for high print resolution and very good ink adhesion for physical and / or chemical Attack attempts.

Anschließend wird das erfindungsgemäße Sicherheitspapier entsprechend dem herzustellenden Wertpapier bedruckt und eventuell weiterverarbeitet. Ein Aufdruck oder eine Prägung, insbesondere wenn er bzw. sie im Tiefdruckverfahren erzeugt wurde, führen zu einer erneut rauhen Oberfläche und begünstigen daher Schmutzablagerungen. Um auch dies auszuschließen, wird gemäß der Erfindung vorgeschlagen, den Aufdruck mit einer weiteren Bindemittelschicht, z.B. einer Lackschicht abzudecken. Die Lackschicht wird hierbei vorzugsweise in ihrer Zusammensetzung auf die erfindungsgemäße Untergrundschicht abgestimmt, um einen guten Verbund der beiden Schichten zu ermöglichen. Eventuell kann der Verbund durch einen zusätzlichen Vernetzungsschritt noch verbessert werden. Dies kann durch Wärmeeinwirkung oder Bestrahlung (z.B. mit UV-Strahlung) erfolgen. Da der Aufdruck mit einem beliebigen Druckverfahren, wie z.B. im Stahltiefdruck oder mit einem Laserdrucker erzeugt werden kann, ist es unter Umständen notwendig, die erfindungsgemäße Bindemittelzusammensetzung entsprechend dem verwendeten Druckverfahren anzupassen, um neben der geringen Verschmutzung auch eine verbesserte Haftung der Druckfarben auf dem Substrat zu gewährleisten.The security paper according to the invention is then correspondingly printed on the security to be manufactured and possibly further processed. An imprint or embossing, especially if he or she is gravure printing generated, lead to a new rough surface and therefore favor dirt deposits. To rule out this, is proposed according to the invention, the imprint with another Binder layer, e.g. to cover a layer of lacquer. The paint layer is preferably in its composition to the invention Undercoat layer matched to a good bond between the two Enable layers. Possibly the network can be supplemented by an Networking step can still be improved. This can be done by Exposure to heat or radiation (e.g. with UV radiation). There printing with any printing method, e.g. in steel intaglio printing or can be generated with a laser printer, it may be necessary, the binder composition of the invention according to the printing process used, in addition to the low soiling also improves the adhesion of the printing inks to ensure on the substrate.

Ein weiterer Vorteil der Erfindung ist darin zu sehen, dass auf eine weitere Vorbehandlung des erfindungsgemäßen Sicherheitspapiers verzichtet werden kann, wenn optisch variable Sicherheitselemente auf dem Papier vorgesehen werden sollen. Optisch variable Elemente bzw. Druckfarben, die aufgrund von Lichtbeugung oder -interferenz ein betrachtungswinkelabhängiges Farbspiel zeigen, benötigen für eine gute Sichtbarkeit dieses Effekts einen möglichst glatten Untergrund. Sicherheitselemente dieser Art sind beispielsweise Hologramme, Kinegramme oder andere Beugungsstrukturen, aber auch Druckfarben, die Interferenzschicht- oder Flüssigkristallpigmente oder andere Effektpigmente, wie glänzende Metalleffektfarbpigmente enthalten.Another advantage of the invention can be seen in that on another Pretreatment of the security paper according to the invention can be dispensed with can, if optically variable security elements are provided on paper should be. Optically variable elements or printing inks due to of light diffraction or interference a viewing angle dependent Show play of colors need one for good visibility of this effect as smooth a surface as possible. Security elements of this type are, for example Holograms, kinegrams or other diffraction structures, but also printing inks, the interference layer or liquid crystal pigments or contain other effect pigments, such as shiny metallic effect color pigments.

In besonderen Fällen kann es jedoch nach wie vor sinnvoll sein, im Bereich dieses Elements eine weitere Untergrundschicht vorzusehen. Flüssigkristallpigmente und Interferenzschichtpigmente, die lediglich aus mit Titandioxid beschichtete Glimmerplättchen bestehen, sind lichtdurchlässig, so dass der Farbeffekt nicht allein von der Glätte sondern auch von der Farbe des Untergrunds beeinflusst wird. Ein schwarzer Untergrund absorbiert das von den Pigmenten transmittierte Licht und erhöht auf diese Weise die Brillanz der von den Pigmenten reflektierten Farben. Das Gleiche gilt für Sicherheitselemente, die aus mehreren dünnen Schichten aufgebaut sind und ebenfalls ein auf Interferenzeffekten beruhendes Farbspiel zeigen. Für diese und ähnliche Elemente kann es daher notwendig sein, das Sicherheitspapier im Bereich des aufzubringenden Sicherheitselementes mit einer weiteren Untergrundschicht zu versehen.In special cases, however, it can still be useful in the area this element to provide a further underground layer. liquid crystal pigments and interference layer pigments made only with titanium dioxide coated mica platelets are translucent, so that the color effect not only from the smoothness but also from the color of the Is influenced underground. A black background absorbs that from light transmitted to the pigments and in this way increases the brilliance of the colors reflected by the pigments. The same applies to security elements, which are made up of several thin layers and also show a play of colors based on interference effects. For this and similar Items, it may be necessary to have the security paper in the area of the security element to be applied with a further background layer to provide.

Alternativ kann es auch zweckmäßig sein, das Sicherheitselement mit einem maschinell oder visuell nachweisbaren Echtheitsmerkmal, wie es beispielsweise aus der WO 97/35732 bekannt ist, zu unterlegen.Alternatively, it may also be appropriate to use a security element machine or visually verifiable authenticity feature, such as it is known from WO 97/35732.

Die erfindungsgemäße Beschichtung wirkt sich zudem auch vorteilhaft auf andere Sicherheitselemente aus. Prägestrukturen beispielweise werden prägnanter, da aufgrund des glatteren Untergrunds die Prägungen stärker hervortreten. Die Prägungen sind auch haltbarer, da nicht nur die Papierfasern geprägt werden.The coating according to the invention also has an advantageous effect other security elements. Embossed structures, for example, are becoming more concise, because the embossing is more pronounced due to the smoother surface. The embossments are also more durable, because not only the paper fibers be shaped.

Gemäß einer bevorzugten Ausführungsform enthält die Beschichtungszusammensetzung zusätzlich in geringer Konzentration wenigstens einen Stoff mit einer visuell und/oder maschinell nachweisbaren physikalischen Eigenschaft. Der Stoff kann beispielsweise magnetische, elektrisch leitfähige, lichtbeugende, lichtpolarisierende oder lichtinterferierende Eigenschaften aufweisen und kann vollflächig in der gesamten Beschichtung gleichmäßig verteilt vorliegen oder in Form von Mustern aufgebracht werden. Hierbei wird vorzugsweise in einem ersten Schritt eine Zusammensetzung in Form eines bestimmten Musters aufgedruckt, die in geringen Mengen in der Art einer Dotierung (< 1 Gew. %) zumindest einen Stoff mit wenigstens einer visuell und/ oder maschinell nachweisbaren physikalischen Eigenschaft enthält. Erst in einem zweiten Schritt wird registerhaltig zu dem ersten Muster der verbleibende Teil der Oberfläche des Papiers mit der gleichen Zusammensetzung, die allerdings den nachweisbaren Zusatzstoff nicht enthält, versehen.According to a preferred embodiment, the coating composition contains additionally at least one substance in low concentration with a visually and / or machine-detectable physical property. The material can for example be magnetic, electrically conductive, light diffractive, have light polarizing or light interfering properties and can be evenly distributed over the entire coating are present or applied in the form of patterns. Here will preferably in a first step a composition in the form of a certain patterns printed in small quantities in the manner of a Doping (<1% by weight) at least one substance with at least one visually and / or contains mechanically detectable physical property. First in a second step, the remaining sample is kept in register with the first sample Part of the surface of the paper with the same composition, which, however, does not contain the detectable additive.

Bei diesen Zusatzstoffen kann es sich beisielsweise um Lumineszenzstoffe handeln, die mit UV-Licht anregbar sind und im visuellen Spektralbereich emittieren. Im Falle einer maschinellen Überprüfung können jedoch auch im unsichtbaren Spektralbereich, vorzugsweise im IR-Spektralbereich emittierende Lumineszenzstoffe verwendet werden. Ebenso sind photochrome oder thermochrome Zusätze denkbar.These additives can be luminescent substances, for example act that can be excited with UV light and in the visual spectral range emit. In the case of a machine check, however, the invisible spectral range, preferably emitting in the IR spectral range Luminescent substances are used. Likewise are photochromic or thermochromic additives conceivable.

Statt physikalisch nachweisbaren Stoffen können allerdings auch chemisch reagierende Zusatzstoffe verwendet werden. Beispielsweise kann eine Komponente eines Farbreaktionssystems der Bindemittelzusammensetzung beigemischt und auf das Papier aufgebracht werden. Bringt man zu einem späteren Zeitpunkt die zweite Komponente des Farbreaktionssystems auf, so wird auf dem Sicherheitspapier ein farbiger Bereich, Muster, Schriftzug oder dergleichen sichtbar. Dies kann als Echtheitsmerkmal dienen oder auch als Entwertungskennzeichen eines Schecks, Tickets oder dergleichen.Instead of physically detectable substances, however, chemical ones can also be used reactive additives are used. For example, a component a color reaction system admixed with the binder composition and applied to the paper. Bring it to a later one The second component of the color reaction system, see above a colored area, pattern, lettering or the like visible. This can serve as an authenticity feature or as Revaluation indicator of a check, ticket or the like.

Durch die Verwendung mehrerer Zusatzstoffe und/oder eine Variation der Konzentration eines oder mehrerer Zusatzstoffe können sehr einfach beliebige Codierungen, beispielsweise in Form eines Barcodes, auf dem Sicherheitspapier erzeugt werden. Diese Codierung kann beispielsweise ein eigenständiges zusätzliches Sicherheitsmerkmal darstellen oder als Vergleichsmerkmal für andere bereits auf dem Sicherheitspapier vorgesehene Daten dienen. So können auf der Banknote visuell sichtbare Informationen, wie beispielsweise die Denomination, der Name einer im Portrait dargestellten Person oder dergleichen verschlüsselt und in Form der erfindungsgemäßen Codierung für das Auge unsichtbar auf dem Papier abgelegt werden. Bei einer maschinellen Überprüfung wird die Codierung gelesen, entschlüsselt und mit der entsprechenden, visuell sichtbaren Information auf Identität geprüft.By using several additives and / or a variation of the Concentration of one or more additives can very easily be any Codings, for example in the form of a barcode, on the security paper be generated. This coding can, for example, be an independent one represent additional security feature or as a comparative feature for other data already provided on the security paper serve. In this way, visually visible information such as for example the denomination, the name of one shown in the portrait Person or the like encrypted and in the form of the invention Coding invisible to the eye on the paper. at The coding is read and decrypted during a machine check and checked for identity with the corresponding, visually visible information.

Nach dem erfindungsgemäßen Prinzip können selbstverständlich auch mehrere unterschiedliche Codierungen erzeugt werden. Hierbei werden beispielsweise gleichzeitig oder nacheinander die den jeweiligen Zusatzstoff enthaltenden Bindemittelzusammensetzungen auf das Papier in Form der gewünschten Codierungen aufgebracht. Der verbleibende Teil der Papieroberfläche wird, wie bereits erläutert, mit der zusatzfreien Bindemittelzusammensetzung bedruckt oder beschichtet. Alternativ können die verschiedenen Codierungen auch auf unterschiedlichen Oberflächen des Sicherheitspapiers angeordnet werden. Eine beidseitige Beschichtung mit dem gleichen Zusatzstoff ist selbstverständlich ebenfalls möglich. According to the principle of the invention, several can of course also be used different encodings are generated. Here, for example the respective additive at the same time or in succession containing binder compositions on the paper in the form of desired coding applied. The remaining part of the paper surface is, as already explained, with the additive-free binder composition printed or coated. Alternatively, the different Coding also on different surfaces of the security paper to be ordered. A double-sided coating with the the same additive is of course also possible.

Gemäß einer weiteren Ausführungsform kann die erfindungsgemäße Beschichtung auch Aussparungen aufweisen. Diese Aussparungen können beliebige Form, z.B. Streifenform aufweisen. Sie werden vor oder nach dem Aufbringen der erfindungsgemäßen Beschichtung mit einem Aufdruck versehen, der bestimmte Effektfarben aufweist. Bei diesen Effektfarben kann es sich um Interferenzschichtpigmente, Flüssigkristallpigmente oder auch andere Glanzpigmente handeln. Dieser Aufdruck kann die Aussparungen hierbei vollflächig oder auch nur teilweise bedecken.According to a further embodiment, the coating according to the invention can also have recesses. These recesses can be any Shape, e.g. Have stripe shape. They will be before or after Applying the coating according to the invention with an imprint, which has certain effect colors. With these effect colors it can are interference layer pigments, liquid crystal pigments or others Trade glossy pigments. This imprint can show the cutouts cover all or part of it.

Das erfindungsgemäße Sicherheitspapier kann beispielsweise auch vorteilhaft für die Herstellung von Ausweiskarten und Pässen verwendet werden. Da es eine erhöhte Reißfestigkeit und Schmutzbeständigkeit aufweist, kann unter Umständen auf die übliche Laminierung mit Kunststofffolien verzichtet werden. Sofern dennoch eine Laminierung erfolgt, sorgt die erfindungsgemäße Beschichtung für einen festen, untrennbaren Verbund zwischen Papier und Abdeckschicht.The security paper according to the invention can also be advantageous, for example used for the production of ID cards and passports. Because it has increased tear resistance and dirt resistance, can under certain circumstances, the usual lamination with plastic films is dispensed with become. If lamination is nevertheless carried out, the invention provides Coating for a firm, inseparable bond between paper and cover layer.

Im Folgenden werden einige Beispiele werden einige Beispiele für die erfindungsgemäße Zusammensetzung erläutertBelow are some examples, some examples of the invention Composition explained

Beispiel 1example 1

Ein Banknotenpapier aus 100 % Baumwolle mit einem Füllstoffgehalt von 3,0 % wird für den Beschichtungsversuch eingesetzt. Das Papier ist durch Einsatz von handelsüblichem Melaminharz (z.B. Madurit MW167) auf eine Nassfestigkeit von 50 % relativ bezogen auf die Trockenfestigkeit eingestellt.A 100% cotton banknote paper with a filler content of 3.0% is used for the coating test. The paper is through Use of commercially available melamine resin (e.g. Madurit MW167) on one Wet strength set at 50% relative to the dry strength.

Als Beschichtung wird folgende Rezeptur eingesetzt: Acronal 320D (BASF)
- wässrige Dispersion eines Acrylharzes - 400 ml enthärtetes Wasser 600 ml. The following recipe is used as the coating: Acronal 320D (BASF)
- aqueous dispersion of an acrylic resin - 400 ml Softened water 600 ml.

Die Mischung wird durch Rühren aufbereitet und auf die Oberfläche des Papieres aufgebracht. Hierzu wird ein rotierendes Walzenpaar verwendet, dessen untere Seite in eine Schale mit der verdünnten Acronal-Dispersion eintaucht. Durch den Walzenspalt wird der Überschuss der Suspension abgepresst. Das Papier wird anschließend mit einem handelsüblichen Fototrockner getrocknet.The mixture is prepared by stirring and applied to the surface of the Paper applied. A rotating pair of rollers is used for this, the lower side in a bowl with the diluted Acronal dispersion dips. The excess of the suspension is pressed through the nip. The paper is then removed using a commercially available photo dryer dried.

Durch die Behandlung erhält das Papier folgende Eigenschaften: Eigenschaften vor der Behandlung nach der Behandlung Luftdurchlässigkeit 25 ml/min 5 ml/min Wasseraufnahme 60 sec 50 g/m2 20 g/m2 Ölaufnahme GFL 30 sec 150 sec The treatment gives the paper the following properties: characteristics before treatment after treatment Air permeability 25 ml / min 5 ml / min Water absorption 60 sec 50 g / m 2 20 g / m 2 Oil intake GFL 30 sec 150 sec

Beispiel 2Example 2

In gleicher Weise, wie in Beispiel 1 dargelegt, wird ein Papier beschichtet mit nachstehender Rezeptur: Neocryl-AC 72 (Zeneca)
- wässrige Dispersion eines Acrylats - 900 ml Wasser 80 ml Vernetzer CX 100 (Zeneca) 20 ml In the same way as set out in Example 1, a paper is coated with the following recipe: Neocryl-AC 72 (Zeneca)
- aqueous dispersion of an acrylate - 900 ml water 80 ml CX 100 crosslinker (Zeneca) 20 ml

Beispiel 3Example 3

Das Papier kann auch mit folgender Bindemittelzusammensetzung beschichtet werden: Primal I-545 (Rohm & Haas)
- wässrige Dispersion eines Acrylats - 900 ml Wasser 80 ml Zirkoniumcarbonat (Auer Remy) 20 ml. The paper can also be coated with the following binder composition: Primal I-545 (Rohm & Haas)
- aqueous dispersion of an acrylate - 900 ml water 80 ml Zirconium carbonate (Auer Remy) 20 ml.

Weitere Vorteile und Ausführungsformen werden anhand der Figuren näher erläutert. Es wird darauf hingewiesen, dass die Figuren lediglich schematisch den Schichtaufbau des erfindungsgemäßen Sicherheitspapiers darstellen. Dabei zeigt

Fig. 1
ein erfindungsgemäßes Sicherheitspapier in Aufsicht,
Fig. 2
einen Schnitt entlang A - B durch das erfindungsgemäße Sicherheitspapier gemäß Fig. 1,
Fig. 3
eine weitere Ausführungsform eines erfindungsgemäßen Sicherheitspapiers in Aufsicht,
Fig. 4
Querschnitt entlang A - B durch das erfindungsgemäße Sicherheitspapier gemäß Fig. 3.
Further advantages and embodiments are explained in more detail with the aid of the figures. It is pointed out that the figures only schematically illustrate the layer structure of the security paper according to the invention. It shows
Fig. 1
a security paper according to the invention in supervision,
Fig. 2
2 shows a section along A - B through the security paper according to the invention according to FIG. 1,
Fig. 3
another embodiment of a security paper according to the invention in supervision,
Fig. 4
Cross section along A - B through the security paper according to the invention according to FIG. 3.

Fig. 1 zeigt einen Ausschnitt aus einer erfindungsgemäßen Sicherheitspapierbahn 1, wie sie beispielsweise für die Herstellung von Banknoten verwendet wird. Derartiges Sicherheitspapier wird üblicherweise aus Baumwollfasern oder anderen Fasern von Einjahrespflanzen hergestellt. Für manche Anwendungen kann es jedoch auch sinnvoll sein, einen Teil dieser natürlichen Fasern durch Kunststofffasern, insbesondere Polyamidfasern zu ersetzen. Aber auch reine Kunststofffaserpapiere sind denkbar. Während der Herstellung der Papierbahn 1 werden bereits einzelne Sicherheitselemente in das Papier eingebettet, wie beispielsweise ein Portrait-Wasserzeichen oder der in Fig. 1 gezeigte Sicherheitsfaden 2. Dieser Sicherheitsfaden 2 wird quasi in das Papier eingewebt, so dass er in den Bereichen 3 direkt an die Oberfläche des Papiers tritt, während er in den strichliert gezeichneten Bereichen vollständig in die Papiermasse eingebettet ist. Dieser Faden 2 kann mit beliebigen Sicherheitsmerkmalen, wie einer elektrisch leitenden, metallischen Schicht, einem Hologramm oder dergleichen versehen sein.1 shows a section of a security paper web according to the invention 1, as used for example for the production of banknotes becomes. Such security paper is usually made of cotton fibers or other fibers made from annual plants. For some However, it may also be useful to use some of these natural applications Fibers through plastic fibers, especially polyamide fibers replace. But pure plastic fiber papers are also conceivable. During the Production of the paper web 1 is already in individual security elements embedded the paper, such as a portrait watermark or the security thread 2 shown in FIG. 1. This security thread 2 becomes quasi woven into the paper so that it is in areas 3 directly to the surface of the paper occurs while it is in the dotted areas is completely embedded in the paper pulp. This thread 2 can with any Security features, such as an electrically conductive, metallic Layer, a hologram or the like.

Fig. 2 zeigt einen Schnitt durch das erfindungsgemäße Sicherheitspapier 1 entlang der strichpunktierten Linie A - B in Fig.1. Das erfindungsgemäße Sicherheitspapier 1 besteht aus dem Rohpapier 4, wie es die Papiermaschine üblicherweise verlässt, und der erfindungsgemäßen Bindemittelbeschichtung 5, die gemäß der gezeigten Ausführungsform vollflächig auf eine Oberfläche des Sicherheitspapiers 1 aufgerakelt oder aufgedruckt wurde. Alternativ kann die Beschichtung 5 jedoch auch beidseitig auf das Sicherheitspapier 1 aufgebracht werden.2 shows a section through the security paper 1 according to the invention along the dash-dotted line A - B in Fig.1. The invention Security paper 1 consists of the base paper 4, as is the paper machine usually leaves, and the binder coating according to the invention 5, which, according to the embodiment shown, covers an entire surface Surface of the security paper 1 was squeegee or printed. Alternatively, however, the coating 5 can also be applied to the security paper on both sides 1 are applied.

Die Fig. 3 und 4 zeigen eine weitere Ausführungsform des erfindungsgemäßen Sicherheitspapiers 1. In Fig. 4 ist ein Schnitt durch dieses erfindungsgemäße Sicherheitspapier 1 entlang der in Fig. 3 strichpunktiert gezeichneten Linie A - B dargestellt.3 and 4 show a further embodiment of the invention Security paper 1. In Fig. 4 is a section through this invention Security paper 1 along the dash-dotted line in FIG. 3 Line A - B shown.

Wie in Fig. 4 gezeigt, besteht das Sicherheitspapier 1 ebenfalls aus einer üblichen Papierbahn 4, die gemäß der Erfindung mit einer reinen Bindemittelzusammensetzung ohne Füllstoffe versehen ist. Die Bindemittelschicht setzt sich allerdings aus unterschiedlichen Bereichen 6, 9 zusammen. In den Bereichen 6 ist die Bindemittelzusammensetzung mit einem Zusatzstoff dotiert, der visuell und/oder maschinell prüfbar ist, während die übrigen Bereiche 9 der Bindemittelzusammensetzung keinen Zusatzstoff enthalten. Wie aus Fig. 3 ersichtlich, bildet der mittels der dotierten Bindemittelzusammensetzung dargestellte Bereich 6 eine visuell lesbare Information. Die ebenfalls mit der dotierten Bindemittelzusammensetzung dargestellten Bereiche 7 bilden eine Codierung 8 in Form eines Barcodes. As shown in Fig. 4, the security paper 1 also consists of a conventional one Paper web 4 made according to the invention with a pure binder composition is provided without fillers. The binder layer sets but from different areas 6, 9 together. In the fields of 6 the binder composition is doped with an additive, which can be checked visually and / or by machine, while the remaining areas 9 contain no additive in the binder composition. As from Fig. 3, forms the by means of the doped binder composition shown area 6 a visually readable information. The also with the Areas 7 shown doped binder composition form a Coding 8 in the form of a bar code.

Bei dem Zusatzstoff kann es sich beispielsweise um einen unter normaler Beleuchtung transparenten Lumineszenzstoff handeln, der bei Bestrahlung mit UV-Licht im visuellen Spektralbereich emittiert und somit einen intensiven Farbton zeigt. In diesem Fall sind die Informationen 6, 8, wie in Fig. 3 dargestellt, lediglich unter UV-Beleuchtung sichtbar.The additive can be, for example, one less than normal Illumination act as transparent luminescent substance when irradiated emitted with UV light in the visual spectral range and thus an intense one Hue shows. In this case, the information is 6, 8 as in FIG. 3 shown, only visible under UV lighting.

Es können allerdings auch mehrere Zusatzstoffe vorgesehen werden, die einzeln nachweisbar sind. Hierbei kann über das Mischungsverhältnis der Zusatzstoffe eine zusätzliche Codierung erzeugt werden. Ebenso ist es denkbar, die Informationen 6, 8 mit unterschiedlichen Zusatzstoffen zu erzeugen. So kann die Information 6, wie bereits erläutert, mit Hilfe eines im visuellen Spektalbereichs emittierenden Lumineszenzstoffes erzeugt werden, während der Barcode 8 mit Hilfe eines lediglich maschinell nachweisbaren Stoffes, z.B. eines im IR-Spektralbereich emittierenden Lumineszenzstoffes, dargestellt wird. Die unter UV-Beleuchtung visuell sichtbaren Zeichen 6 können dabei beispielsweise ein Bild, Muster oder eine lesbare Information darstellen. Der maschinell lesbare Code 8 dagegen könnte bestimmte für das individuelle Wertdokument bezeichnende Informationen, gegebenenfalls in verschlüsselter Form repräsentieren. Es könnte sich bei diesen Informationen um dem Papiermaterial inhärente Eigenschaften, wie die Transmissionseigenschaften, Dickenverteilung etc. handeln oder um andere für das jeweilige Wertdokument wesentliche Information, wie die Denomination oder dergleichen.However, several additives can also be provided are individually detectable. Here, the mixing ratio of Additional coding can be generated. It is also conceivable to generate the information 6, 8 with different additives. Thus, as already explained, the information 6 can be visualized with the aid of a Spectal region emitting luminescent substance are generated during the barcode 8 with the aid of a substance that can only be detected by machine, e.g. of a luminescent substance emitting in the IR spectral range becomes. The characters 6 that are visually visible under UV illumination can be used for example represent an image, pattern or legible information. The machine readable code 8, however, could be intended for the individual Information identifying the value document, possibly in encrypted form Represent form. This information could be the Paper material inherent properties, such as the transmission properties, Thickness distribution, etc. act or others for the respective document of value essential information, such as denomination or the like.

Claims (17)

  1. A security paper for producing documents of value, such as bank notes, passports, ID cards or the like, which is provided at least partly with a coating ensuring longer fitness for circulation, the coating being provided at least on one of the surfaces of the security paper, characterized in that the coating consists of a composition containing an acrylate system as the sole binder and no fillers and optionally one or more visually or machine testable additives for security features and/or codings.
  2. A security paper according to claim 1, characterized in that the composition is present on the security paper in a coating weight of 1 to 6 g/m2, preferably 2 to 3 g/m2.
  3. A security paper according to claim 1 or 2, characterized in that the composition contains acrylates or a mixture of polymers or copolymers with a high acrylate content as a binder.
  4. A security paper according to at least one of claims 1 to 3, characterized in that the composition contains a low concentration of at least one substance with a visually and/or machine detectable property for security features and/or codings.
  5. A security paper according to claim 4, characterized in that the substance has luminescent, magnetic, electroconductive, diffractive, light-interfering or light-polarizing properties.
  6. A security paper according to claim 4 or 5, characterized in that the substance or substances are provided in the coating only partly, preferably in the form of a pattern.
  7. A security paper according to at least one of claims 1 to 6, characterized in that the security paper consists of fibers of annual plants, in particular cotton fibers.
  8. A security paper according to at least one of claims 1 to 7, characterized in that the security paper consists at least partly of plastic fibers, preferably polyamide fibers.
  9. A security paper according to at least one of claims 1 to 8, characterized in that the security paper is an unsized paper.
  10. A security paper according to at least one of claims 1 to 9, characterized in that the coating is applied to the security paper only in certain areas and the coating-free areas are printed with an ink containing special-effect pigments.
  11. A document of value, such as a bank note, check, ID card or the like, characterized in that the document of value has a security paper according to at least one of claims 1 to 10.
  12. A document of value according to claim 11, characterized in that the document of value has over the coating a print which is in turn covered by a coating, e.g. a lacquer layer.
  13. A method for producing a security paper according to at least one of claims 1 to 10, characterized in that a paper layer is produced in a paper machine and subsequently a coating applied at least partly to at least one of the surfaces of the paper, the coating consisting of a composition containing an acrylate system as the sole binder and no fillers and optionally one or more visually or machine testable additives for security features and/or codings.
  14. A method according to claim 13, characterized in that the paper is sized before application of the coating.
  15. A method according to claim 13 or 14, characterized in that the coating is printed on.
  16. A method according to at least one of claims 13 to 15, characterized in that the coating is applied in a plurality of steps.
  17. A method according to claim 16, characterized in that a composition containing small amounts of at least one substance with at least one visually and/or machine detectable physical property for security features and/or codings is applied in the form of a pattern in a first step, and the remaining part of the surface of the paper is provided with the same composition without the detectable substance in register with the pattern in a second step.
EP99931205A 1998-06-29 1999-06-28 Antifalsification paper Revoked EP1099024B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI9930565T SI1099024T1 (en) 1998-06-30 1999-06-28 Antifalsification paper
EP03017392A EP1365069A3 (en) 1998-06-29 1999-06-28 Security paper

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19829004 1998-06-29
DE19829004A DE19829004A1 (en) 1998-06-30 1998-06-30 Security paper
PCT/EP1999/004471 WO2000000697A1 (en) 1998-06-29 1999-06-28 Antifalsification paper

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP03017392A Division EP1365069A3 (en) 1998-06-29 1999-06-28 Security paper

Publications (2)

Publication Number Publication Date
EP1099024A1 EP1099024A1 (en) 2001-05-16
EP1099024B1 true EP1099024B1 (en) 2004-02-18

Family

ID=7872406

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99931205A Revoked EP1099024B1 (en) 1998-06-29 1999-06-28 Antifalsification paper
EP03017392A Withdrawn EP1365069A3 (en) 1998-06-29 1999-06-28 Security paper

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03017392A Withdrawn EP1365069A3 (en) 1998-06-29 1999-06-28 Security paper

Country Status (11)

Country Link
EP (2) EP1099024B1 (en)
KR (1) KR20010071507A (en)
CN (1) CN1238603C (en)
AT (1) ATE259916T1 (en)
AU (1) AU4779099A (en)
DE (2) DE19829004A1 (en)
DK (1) DK1099024T3 (en)
ES (1) ES2216529T3 (en)
ID (1) ID27465A (en)
PT (1) PT1099024E (en)
WO (1) WO2000000697A1 (en)

Cited By (2)

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EP1783273A1 (en) * 2005-11-04 2007-05-09 Giesecke & Devrient GmbH Resin impregnated security paper
DE102009024987A1 (en) 2009-06-16 2010-12-23 Giesecke & Devrient Gmbh Foil composite banknote

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WO2003044276A1 (en) * 2001-11-22 2003-05-30 Landqart Security paper and security articles
CN100432335C (en) * 2003-02-11 2008-11-12 德国捷德有限公司 Security paper and method for the production thereof
US7934752B2 (en) 2004-03-08 2011-05-03 Dai Nippon Printing Co., Ltd. Image forming method and recorded matter
DE102004014778A1 (en) 2004-03-26 2005-10-13 Leonard Kurz Gmbh & Co. Kg Security and / or value document
ATE335879T1 (en) * 2004-05-14 2006-09-15 Hueck Folien Gmbh COATING TO INCREASE THE ROTABILITY OF DATA CARRIERS
US20100193146A1 (en) * 2005-03-22 2010-08-05 Arrow Coated Products Ltd. High security paper and process of manufacture
PL3231938T3 (en) 2006-10-27 2022-01-03 Crane & Co., Inc. A soil and/or moisture resistant secure document
KR100974099B1 (en) * 2007-11-29 2010-08-05 양해완 Multipurpose Prefabricated Fitness Equipment
DE102009054406A1 (en) 2009-11-24 2011-05-26 Giesecke & Devrient Gmbh Value document with silicone resin coating and method for its production
DE102010019194A1 (en) † 2010-05-04 2011-11-10 Giesecke & Devrient Gmbh Value document with recess
JP5640702B2 (en) * 2010-12-02 2014-12-17 富士ゼロックス株式会社 Paper
DE102011120063A1 (en) 2011-12-02 2013-06-06 Giesecke & Devrient Gmbh Security paper and value document available therefrom
DE102011120850A1 (en) 2011-12-09 2013-06-13 Giesecke & Devrient Gmbh Security paper, value document obtainable therefrom and method for producing the same
DE202012010037U1 (en) 2012-10-19 2014-01-20 Hueck Folien Ges.M.B.H. Coating for securities, in particular for increasing the fitness for circulation
DE102013000333A1 (en) * 2013-01-11 2014-07-17 Carl Freudenberg Kg coating system
CN107460780B (en) * 2017-09-29 2020-07-17 温岭市华航电子科技有限公司 Polyurethane conductive paper and preparation method thereof
DE102022133075A1 (en) 2022-12-13 2024-06-13 Giesecke+Devrient Currency Technology Gmbh Security substrate, security paper and manufacturing process

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CA1043193A (en) * 1975-02-14 1978-11-28 Douglas C. Edwards Coating of paper
FR2605123B1 (en) * 1986-10-10 1989-07-07 Bric TRUST OR SECURITY OBJECT ALLOWING VISUAL OR OPTICAL AUTHENTICATION
FR2668507B1 (en) * 1990-02-09 1996-06-21 Arjomari Europ SHEET FOR SECURITY DOCUMENTS, HAVING A HIGH PRINTABILITY AT THE SAME TIME AS A RESISTANCE TO HIGH TRAFFIC.
US5182141A (en) * 1990-02-13 1993-01-26 Co-Ex-Tec Industries Bilaminate polymer coated metal strip and method for manufacture thereof
FR2670812B1 (en) * 1990-12-21 1996-06-21 Arjomari Europ PRINTABLE SHEET FOR MANUFACTURING SECURITY DOCUMENTS COMPRISING AN AGAINST COUNTERFEITING OR AUTHENTICATION.
GB2283026B (en) * 1993-09-30 1997-01-08 Portals Ltd Improvement in security features for paper
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ES2137805B1 (en) * 1996-04-12 2000-08-16 I D Tec S L PRODUCTION PROCEDURE OF A PRINTED SECURITY CORE FOR IDENTITY DOCUMENTS AND A PRINTED SECURITY CORE.

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Publication number Priority date Publication date Assignee Title
EP1783273A1 (en) * 2005-11-04 2007-05-09 Giesecke & Devrient GmbH Resin impregnated security paper
DE102009024987A1 (en) 2009-06-16 2010-12-23 Giesecke & Devrient Gmbh Foil composite banknote

Also Published As

Publication number Publication date
EP1365069A3 (en) 2004-06-09
DE19829004A1 (en) 2000-01-05
DK1099024T3 (en) 2004-06-21
WO2000000697A1 (en) 2000-01-06
ID27465A (en) 2001-04-12
CN1238603C (en) 2006-01-25
ES2216529T3 (en) 2004-10-16
PT1099024E (en) 2004-06-30
AU4779099A (en) 2000-01-17
EP1365069A2 (en) 2003-11-26
CN1307658A (en) 2001-08-08
ATE259916T1 (en) 2004-03-15
DE59908592D1 (en) 2004-03-25
KR20010071507A (en) 2001-07-28
EP1099024A1 (en) 2001-05-16

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