DE102016015378A1 - Method for producing a value document - Google Patents

Abstract

The invention relates to a method for producing a value document, such as a banknote or the like, wherein the document of value consists of a security paper with a front side and a back side, on at least one of these sides a protective layer is applied. According to the invention, between the protective layer and the side of the security paper to which this protective layer is applied, a coating is applied to the security paper, which is changed in a subsequent step by an electromagnetic radiation without contact through the protective layer, so that an individual information is inscribed in the coating.

Description

The invention relates to a method for producing a value document, such as a banknote or the like, wherein the document of value consists of a security paper with a front side and a back side, wherein a protective layer is applied to at least one of these pages.

Out DE 10243653 A9 is a security paper for the production of documents of value, such as banknotes or the like, with double-sided film lamination known in which all other printing steps (flat, gravure, gravure and high pressure, offset, screen printing, Intaglio and digitization) and / or other finishing steps (for example Laser application, film application, application of further security elements) are applied to the respective outer sides of the laminated films. However, it has proven to be disadvantageous that these imprints or security elements may be damaged or even lost in circulation due to environmental influences, mechanical abrasion and wear.

Out WO 2013/182692 A1 a banknote sheet is known, which is first printed completely finished, ie flat, gravure, gravure and high pressure, offset, screen printing, intaglio and numbering, and then laminated on both sides with a foil. A disadvantage is that in case of errors in the production of a banknote, which lead to the later rejection of the banknote in question, the numbering of the banknote series is no longer continuous because the banknote with the corresponding number is missing. However, a continuous numbering of a banknote series is required by many customers.

The numbering of banknotes is applied in the prior art with a mechanical mechanism by high pressure on one side of a bill. However, a complex individual code (e.g., bar code, QR code, etc.) different on each bill is not possible with this method.

Disadvantages of the prior art are thus in particular that the individualization of banknotes is either outboard and not circulating stable or internal, but leading to higher rejects and / or reduced tactility.

The invention is therefore the object of developing a generic security element such that the disadvantages of the prior art are eliminated.

This object is solved by the features of the independent claims. Further developments of the invention are the subject of the dependent claims.

According to the invention, a coating is applied to the security paper between the protective layer and the side of the security paper to which this protective layer is applied, which is changed in a subsequent step by an electromagnetic radiation without contact through the protective layer, so that an individual information in the coating is enrolled. In this case, the coating can be applied over the whole area to or on only a partial area of the surface of the security paper.

The coating or activatable layer or substance is preferably located directly in the substrate or in the protective layer (lamination, lacquer, etc.) on at least one of the two sides or is applied to the substrate over the entire surface or partially on at least one of the two sides of the substrate.

A particular advantage of the invention is thus that the internal individualization is protected by the protective layer against external influences in circulation. Furthermore, the individualization can be inscribed into the coating through the protective layer without destruction.

According to a preferred embodiment, the electromagnetic radiation is generated by a laser.

According to another preferred embodiment, the protective layer is a laminated, laminated or extruded film or varnish. Thus, either a film is applied as a protective layer on the front and / or back of the security or a coating in the form of a lacquer layer, which is printed by a printing process on the front and / or back of the security.

1. a) einen unsichtbaren Stoff, der nach Beaufschlagung mit elektromagnetischer Strahlung eine Färbung aufweist,
2. b) einen Stoff, der nach Beaufschlagung mit elektromagnetischer Strahlung sein Volumen irreversibel verändert, z. B. durch Aufschäumen,
3. c) einen opaken Stoff, der nach Beaufschlagung mit elektromagnetischer Strahlung durch Ablation und/ oder chemische Reaktion nicht mehr sichtbar ist; ein derartiger opaker Stoff ist beispielsweise eine Beschichtung aus Aluminium, Metall, einer Farbe mit optisch variablen Pigmenten (OVI), einer Farbe mit magnetisch ausrichtbaren optisch variablen Pigmenten oder eine aufgedampfte, mehrschichtige optisch variable Beschichtung.

According to a further preferred embodiment, the coating contains a substance which can be activated and / or changed by electromagnetic radiation, for example one of the following substances:

1. a) an invisible substance that has a color after being exposed to electromagnetic radiation,
2. b) a substance which irreversibly alters its volume upon exposure to electromagnetic radiation, e.g. B. by foaming,
3. c) an opaque substance that ceases to be exposed after exposure to electromagnetic radiation through ablation and / or chemical reaction is visible; such an opaque material is for example a coating of aluminum, metal, a color with optically variable pigments (OVI), a color with magnetically orientable optically variable pigments or a vapor-deposited, multilayer optically variable coating.

According to another preferred embodiment, the individual information is, for example, a digit, a barcode or a QR code or information about manufacturing data of the security paper or personalized data.

According to a further preferred embodiment, the coating after exposure to electromagnetic radiation is darker or lighter than the environment not exposed to electromagnetic radiation. Furthermore, the coating can be haptically detectable or tactile after exposure to electromagnetic radiation and form, for example, information for blind or visually impaired persons.

According to a further preferred embodiment, the individualization is machine-readable, for example with the camera of a smartphone or tablet (for example the recognition of a QR code or a pattern recognition), by means of special handheld devices or by means of banknote processing machines.

1. a) eine Laserätzung, d.h. eine Vertiefung durch Materialentfernung oder Verdichtung, gegebenenfalls kombiniert mit einer Verfärbung; die Vertiefung dient später gegebenenfalls auch als taktiles Sicherheitselement,
2. b) eine Verfärbung, ohne dass die Struktur verändert wird,
3. c) eine taktile Erhebung, die fühlbar ist, z.B. durch Laserung einer Erhebung mit einer Höhe über der Substratoberfläche von vorzugsweise zwischen 10 µm und 100 µm.

For example, the following variants can be generated with a laser:

1. a) a laser etching, ie a recess by material removal or compression, optionally combined with a discoloration; if necessary, the depression later also serves as a tactile security element,
2. b) a discoloration, without the structure being changed,
3. c) a tactile survey that can be felt, for example by lasering a survey with a height above the substrate surface of preferably between 10 .mu.m and 100 .mu.m.

The substance which can be activated by electromagnetic radiation may be located on the protective coating / under the protective coating / in the substrate on at least one of the two sides, completely or partially. The area in which the activatable substance is located is either more transparent or translucent than the surrounding area, so that the scattering of the activating electromagnetic radiation is minimal and the information can be read well later. Conversely, however, this area can also be deliberately matted in order to facilitate machine detection of the activated substance or to ensure error-free detection. Usually glossy or reflective surfaces interfere with an optical recognition.

In another embodiment, the substance of the coating which can be activated by electromagnetic radiation can also be applied to both sides of the security paper, the coating being arranged congruently or not congruent to one another on both sides.

The individualization may be written on both sides in two steps, or preferably in one step, i. to the (with respect to a laser) backside by trans-lasing, i. non-destructive through front foil and substrate to the laser active surface located on the back. In the area with the coating or the laser-active substance on the back side, the substrate of the security paper may have a dilution or perforation in this area.

• • Entfärben im „blauen Bereich“- Färben im „weißen Bereich“,
• • Demetallisieren in einem metallisierten Bereich,
• • Aufschäumen und gegebenenfalls Färben,
• • Demetallisieren und Aufschäumen,
• • Entfärben (teilweise Demetallisieren) einer optisch variablen Farbe (mit OVI-Pigmenten) oder einer aufgedampften, mehrschichtigen optisch variablen Beschichtung (OVI-Folie),
• • Kombinationen aus den oben angegebenen Varianten,
• • Laserung einer Beschichtung auf der Rückseite eines Substrats durch ein Wasserzeichen hindurch, wobei das Wasserzeichen aufgrund seiner Variation der Transluzenz des Substrats als Lasermaske dient, wie es beispielsweise aus WO 2013/124059 A1 bekannt ist,
• • passergenaue Demetallisierung und Färbung.

Examples of an individualisation or indexing:

• • discolouring in the "blue area" - coloring in the "white area",
• Demetalizing in a metallized area,
• Foaming and possibly coloring,
• • demetallizing and foaming,
• Decolorizing (partially demetallizing) an optically variable color (with OVI pigments) or a vapor-deposited, multilayer optically variable coating (OVI film),
• Combinations of the variants indicated above,
• • Laser coating of a coating on the back of a substrate through a watermark, the watermark serves as a laser mask due to its variation of the translucency of the substrate, as for example WO 2013/124059 A1 is known
• • accurate demetalization and coloration.

According to a further exemplary embodiment, a plurality of colors which can be activated by means of electromagnetic radiation are superimposed over and / or adjacent to one another in a running and / or adjacent manner, so that color effects occurring after the application of electromagnetic radiation can be recognized. The electromagnetic radiation, for example a laser, can be used to cut holes in the substrate, wherein the edge is colored. Another variant is the application for the individual introduction of a numbering.

• • Die Individualisierung kann in einem der letzten, bevorzugt im letzten Schritt erfolgen. Es wird somit eine innen liegende, umlaufstabile Individualisierung von Banknoten erreicht, die erst in einem der letzten Arbeitsschritte, gegebenenfalls sogar nach einer Folienkaschierung durchgeführt werden kann.
• • Die Individualisierung kann auf beiden Seiten erfolgen, bevorzugt in einem Schritt.
• • Die Individualisierung ist auch maschinenlesbar, z.B. mit einem Smartphone oder Banknotenbearbeitungsmaschinen.
• • Die Individualisierung kann auch komplex sein, z.B. Barcode, QR-Code etc.
• • Die maschinenlesbare Individualisierung kann auch in einem Design für das menschliche Auge nicht ersichtlich eingebracht bzw. versteckt werden.

The invention has the following advantages:

• • The customization can be done in one of the last, preferably in the last step. It is thus achieved an internal, circulation stable individualization of banknotes, which can be performed only in one of the last steps, possibly even after a Folienkaschierung.
• • The customization can be done on both sides, preferably in one step.
• • The customization is also machine-readable, eg with a smartphone or banknote processing machines.
• • The customization can also be complex, eg barcode, QR code etc.
• • The machine-readable customization can not be clearly inserted or hidden in a design for the human eye.

The security paper is particularly preferably made of paper from cotton fibers, as used for example for banknotes, or from other natural fibers or from synthetic fibers or a mixture of natural and synthetic fibers, or from at least one plastic film, for example a polymer film. Further preferably, the security paper consists of a combination of at least two superposed and interconnected different substrates, a so-called hybrid. For example, the security paper consists of a combination of plastic film-paper-plastic film, i. a paper substrate is covered on either side by a plastic film, or a combination of paper plastic film paper, i. a substrate made of a plastic film is covered on each side by paper.

Information on the weight of the substrate used in the security paper are, for example, in the document DE 102 43 653 A9 specified, the statements of which are fully incorporated in this application in this regard. The font DE 102 43 653 A9 in particular states that the paper layer usually has a weight of 50 g / m ² to 100 g / m ² , preferably from 80 g / m ² to 90 g / m ² . Of course, depending on the application, any other suitable weight can be used.

Documents of value in which such a substrate or security paper can be used are, in particular, banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other papers which are subject to counterfeiting, such as passports and other identity documents, as well as cards, such as credit cards. or debit cards whose card body has at least one layer of security paper and also product securing elements such as labels, seals, packaging and the like.

The simplified term value document includes all the above materials, documents and product safeguards.

As a register or register in the sense of this invention, the positional accuracy of printed images or other elements to each other on the front and / or back of a substrate is called. For example, in the case of parts of printed images which complement one another in a transcript to an overall printed image, even slight deviations of less than 0.1 mm between the respective printed images disturb the visual impression in transparency considerably. The DIN 16500-2: 1987-01 defines as Passer the accuracy in the printing technique, with which the intended reproduction quality of the reproduced details is achieved or maintained.

The terms "front" or "back" of the substrate or value document are relative terms, which may also be referred to as "the one" and "the opposite" sides, and which constitute the majority of the total surface area of the substrate or value document. Specifically, these terms do not include the side surfaces of a substrate or document of value that are negligibly small and usually not provided with security features or coatings for a thickness of a substrate or value document that is only about a millimeter in card bodies or fractions of a millimeter for banknotes be or can be. In particular, no see-through effects can be achieved with the side surfaces.

Information in the sense of this invention is a pattern-shaped and visually perceptible coating. This can for example form a graphic image, a picture, a number, a letter, a text or other characters. Particularly preferably, the information consists of positive or / and negative motives. In the case of a positive motif, in this case a motif element is itself applied to the substrate, whereas in the case of a negative motif the area surrounding the motif element is applied to the substrate. For example, a positive subject is a letter printed in dark color on the light substrate. A negative motif is, for example, a surface applied in a dark color to the substrate, which has an unprinted area in the form of a letter within the area.

It is understood that the above-mentioned and those to be explained below Characteristics can be used not only in the specified combinations, but also in other combinations, without departing from the scope of the present invention, insofar as this is covered by the scope of the claims.

Reference to the following embodiments and the additional figures, the advantages of the invention will be explained. The embodiments represent preferred embodiments, to which, however, the invention should not be limited in any way. Furthermore, the representations in the figures of better understanding are highly schematized and do not reflect the realities. In particular, the proportions shown in the figures do not correspond to the conditions present in reality and serve exclusively to improve the clarity. Furthermore, the embodiments described in the following exemplary embodiments are reduced to the essential core information for the sake of clarity. In the practical implementation much more complex patterns or images can be used.

• 1 vier verschiedene Varianten einer Beschichtung nach erfindungsgemäßer Beaufschlagung mit elektromagnetischer Strahlung,
• 2 eine Banknote mit einseitiger Beschichtung bei erfindungsgemäßer Beaufschlagung mit elektromagnetischer Strahlung,
• 3 eine Banknote mit zweiseitiger Beschichtung in einer ersten Ausführungsform,
• 4 eine Banknote mit zweiseitiger Beschichtung in einer zweiten Ausführungsform bei erfindungsgemäßer Beaufschlagung mit elektromagnetischer Strahlung.

In detail, show schematically:

• 1 four different variants of a coating according to the invention exposure to electromagnetic radiation,
• 2 a banknote with one-sided coating when subjected to electromagnetic radiation according to the invention,
• 3 a banknote with two-sided coating in a first embodiment,
• 4 a banknote with two-sided coating in a second embodiment when subjected to electromagnetic radiation according to the invention.

• • Variante a eine Laserätzung, d.h. eine Vertiefung durch Materialentfernung oder Verdichtung, gegebenenfalls kombiniert mit einer Verfärbung; die Vertiefung dient später gegebenenfalls auch als taktiles Sicherheitselement,
• • Variante b eine Verfärbung, ohne dass die Struktur des Substrats verändert wird,
• • Variante c eine Erhebung, die fühlbar ist, indem beispielsweise das Substrat durch Laserung aufgeschäumt wird,
• • Variante d eine Kombination aus einer Demetallisierung einer metallischen Schicht durch den Laser (die grau dargestellten Bereiche oben und unten) und einer fühlbaren Erhebung entsprechend der oben genannten Variante c.

1 shows four different variants of a coating according to the invention exposure to electromagnetic radiation and in this case in:

• Variant a laser etching, ie a recess by material removal or compression, optionally combined with a discoloration; if necessary, the depression later also serves as a tactile security element,
• Variant b a discoloration without changing the structure of the substrate,
• Variant c is an elevation that can be felt, for example by foaming the substrate by lasering,
• Variant d a combination of a demetallization of a metallic layer by the laser (the areas shown in gray at the top and bottom) and a tangible elevation corresponding to the above-mentioned variant c.

2 shows a banknote from a substrate 1 , on the front side of which a electromagnetic radiation changeable coating 2 is applied. In addition, there are more color layers 4 on the front and back of the substrate 1 imprinted here and in the following figures by black rectangles. Over the coating 2 and the color layers 4 located on the front and back of the substrate 1 one protective layer each 3 , Will now be the front of the bill with electromagnetic radiation 5 , For example, laser radiation, applied, is in the coating 2 an individual information inscribed. The protective layer 3 on the front of the bill is due to the electromagnetic radiation 5 not changed.

3 shows the banknote 2 , in addition, also on the back of the substrate 1 a coating 2 is applied. This coating on the back of the substrate 1 can according to 4 for example, in a depression or dilution 7 of the substrate 1 are arranged, which is formed for example by a watermark. In the area of the depression 7 is the permeability of the substrate 1 to electromagnetic radiation, for example, the light transmittance or transparency of the substrate 1 , increased, so that laser radiation 6 through the substrate 1 through to the coating arranged on the back 2 penetrates and inscribes individual information without influencing other parts of the value document.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10243653 A9 [0002, 0025]
• WO 2013/182692 A1 [0003]
• WO 2013/124059 A1 [0021]

Claims (6)

A method for producing a value document, such as a banknote or the like, wherein the document of value consists of a security paper with a front side and a back side, wherein a protective layer is applied to at least one of these pages, characterized in that between the protective layer and the side of the security paper to which this protective layer is applied, a coating is applied to the security paper, which is changed in a subsequent step by an electromagnetic radiation without contact through the protective layer, so that an individual information is inscribed in the coating. Method according to Claim 1 , characterized in that the electromagnetic radiation is generated by a laser. Method according to at least one of the preceding claims, characterized in that the protective layer is formed by a laminated, laminated or extruded film or a coating. Method according to at least one of the preceding claims, characterized in that the coating contains an activatable by electromagnetic radiation and / or variable material. Method according to at least one of the preceding claims, characterized in that the individual information is a numbering, a barcode, a QR code, manufacturing data of the security paper or personalized data. Method according to at least one of the preceding claims, characterized in that the coating after exposure to electromagnetic radiation is darker or lighter than the non-acted upon by electromagnetic radiation environment or haptically detectable.

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