Substrate for manufacturing value paper or security paper

Abstract

The invention relates to a substrate (1) for the production of value paper or security paper, and to a value paper or security paper comprising said substrate. The substrate (1) comprises a carrier layer (2) and at least one security element (3), wherein the security element (3) is applied on and / or in the carrier layer (2), and wherein a primer (4) is at least partially applied on a first substrate side (5) and / or a second substrate side (6) of the substrate (1). The primer (4) is at least partially arranged between the carrier layer (2) and the security element (3), and / or at least partially covers the security element (3) and / or the carrier layer (2), wherein a region of the security element (3) covered by the primer (4) is less visible compared to a region of the security element (3) not covered by the primer (4) and / or a region of the carrier layer (2) not covered by the primer (4). The security element (3) is configured with a partially reflective and imaging layer.

Description

[0001] This invention relates to a substrate for manufacturing valuable paper or anti-counterfeiting paper, and valuable paper or anti-counterfeiting paper.

[0002] Substrates, and especially polymer substrates, as well as the types of paper or security paper described at the beginning, are commonly used to enhance the security of paper or security paper (such as banknotes, certificates, credit cards, ATM cards, tickets, etc.).

[0003] According to existing technology, attempts are made to achieve anti-counterfeiting features using shadow images or watermarks. For example, an optical anti-counterfeiting feature recorded on a polymer substrate in a banknote is known from DE112018003095T5. Here, the image contained in the turbidity layer of the polymer substrate of the polymer-based banknote is more clearly visible in transmission than in reflection. However, known implementations have coverage errors, which limit the complexity of the shadow image and thus limit its anti-counterfeiting capabilities. Therefore, high-quality shadow images or watermarks cannot be achieved.

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a means by which valuable paper or anti-counterfeiting paper, especially polymer valuable paper or polymer anti-counterfeiting paper, with one or more highly anti-counterfeiting elements can be manufactured or constructed.

[0005] This objective is achieved by using the substrate as claimed in the claims, particularly a polymer substrate, and a valuable or anti-counterfeiting paper.

[0006] This invention relates to a substrate for manufacturing valuable paper or anti-counterfeiting paper, wherein the substrate comprises a carrier layer, particularly a polymer carrier layer, and at least one anti-counterfeiting element, wherein the anti-counterfeiting element is applied on and / or in the carrier layer. Here, a primer is at least partially applied to a first substrate side and / or a second substrate side of the substrate. Here, the primer is at least partially disposed between the carrier layer and the anti-counterfeiting element, and / or the primer at least partially covers the anti-counterfeiting element and / or the carrier layer, wherein the primer-covered area of ​​the anti-counterfeiting element is less visible compared to the area of ​​the anti-counterfeiting element not covered by the primer and / or the area of ​​the carrier layer not covered by the primer. According to the invention, the anti-counterfeiting element is configured to have a partially reflective and imaging layer.

[0007] The term "primer" can describe not only a single layer but also a composite or stack of multiple layers. This can include, for example, multiple layers or stacks of the same type, or multiple different layers or stacks. It should be noted that the statement "a layer is applied to something" should be understood as meaning that a layer can be applied directly, or that one or more intermediate layers can exist between the applied layer and the layer to which it was applied. It should also be noted that one or more intermediate layers can be arranged between the layers described herein. Therefore, it is not absolutely necessary for the layers to be in contact with each other. Furthermore, it should be noted that the term "layer" herein should be understood to mean that a layer can also consist of multiple sublayers. The term "image" can be any type of character, letter, pattern, theme, geometric shape, guilloche, and line.

[0008] It should also be noted that the term "particularly / especially" in this document should be understood as possibly referring to a more specific form or more detailed specification of the object, but not necessarily to show its mandatory preferred implementation or mandatory working steps.

[0009] The substrate according to the invention enables the manufacture of valuable paper or security paper with one or more highly secure anti-counterfeiting elements. In particular, when the substrate is a polymer substrate, this provides banknote manufacturers with a raw material that can, in principle, be further processed in the same way as or similar to the paper used for paper banknotes. Therefore, banknote manufacturers can, for example, manufacture paper banknotes and polymer banknotes using the same machines or process steps, or also with slight modifications. This benefits the economics of the entire production chain while resulting in higher product quality.

[0010] The anti-counterfeiting properties are further ensured by the one or more anti-counterfeiting elements constructed in or on the substrate, because the applied primer reduces the visibility of the one or more anti-counterfeiting elements. According to the invention, those areas on or in which the primer-covered anti-counterfeiting elements are constructed on or in the first substrate side and / or the second substrate side can be perceived less clearly or less obviously compared to those areas having and / or not having a carrier layer covered with primer. According to the invention, the primer for covering the one or more anti-counterfeiting elements is applied at least partially to the one or more anti-counterfeiting elements and / or the carrier layer, and the primer can also allow the substrate to be subsequently printed separately by the banknote manufacturer, such that at least selected areas are covered and are visible with less contrast or less obviousness or less noticeability. When an observer observes the substrate side on which the primer is applied, the observer can particularly identify or perceive the effect that the area covered by the primer is less visible than the area not covered by the primer. Of course, the substrate can also have primer on both sides. In these embodiments, the effect of lower visibility of the covered areas on both substrate sides can be seen. Alternatively, the one or more anti-counterfeiting elements may be arranged on or within the two outer surfaces of the carrier layer.

[0011] Anti-counterfeiting elements can be constructed, for example, as anti-counterfeiting lines, anti-counterfeiting strips, and the like, while other advantageous types or constructions known to those skilled in the art may also be considered.

[0012] According to a favorable improvement, the image formed by the partially reflective layer can be constructed as a mosaic image. For example, the construction of an anti-counterfeiting element having a partially reflective layer forming a mosaic image is known from EP1674286A1. Therefore, images with very realistic, high-resolution, and high-quality or detailed effects can be displayed, especially raster images composed of, for example, metallized dots or grating dots, where areas with different optical densities can also be achieved. If the corresponding anti-counterfeiting element is applied to or onto the substrate, for example as a line, strip, or transfer foil, and overprinted accordingly entirely or partially with a primer, the image or anti-counterfeiting element becomes, to some extent, a shadow image or watermark, or is perceived by the observer as a shadow image or watermark. Here, the primer acts as an opacifying layer. Multi-level watermarks can be achieved by sometimes realizing different optical densities in different image areas.

[0013] Furthermore, it is desirable that the area of ​​the security element covered by the primer is invisible when viewed from above but visible in perspective, or that the area of ​​the security element covered by the primer is more easily seen in perspective than when viewed from above. This advantageous construction allows users to easily verify the authenticity of a banknote by holding it against the light or observing it in perspective. Thus, it can further contribute to the security of the banknote. It is also possible that, when viewed in perspective, the area of ​​the security element covered by the primer is not entirely visible, but only those parts or areas of the image layer that are partially reflected by the construction of the element are visible. Therefore, only the partial metallization or the partial HRI layer—that is, the layer with a high refractive index (HRI)—or the image formed therefrom, especially mosaic, is visible under transmitted light. In the partial metallization or the partial HRI layer, the layer—to name just a few examples—can contain blank spaces in the form of characters, letters, patterns, themes, geometric shapes, guillochés, and lines.

[0014] The substrate can be either a polymer substrate or a paper substrate. In this document, the term "substrate" or "polymer substrate" is used specifically, where a paper substrate may be used instead of a polymer substrate if necessary, as is appropriate. A polymer substrate includes a polymer carrier layer, while a paper substrate includes a paper carrier layer, or the paper substrate is made of cellulose fiber-based pulp.

[0015] In particular, if the primer is at least partially disposed between the carrier layer and the security element, it may be advantageous that the security element and / or the carrier layer and / or the primer are at least partially covered by the overlay. In this case, the area covered by the overlay of the security element may be less visible compared to the area of ​​the security element not covered by the overlay and / or the area of ​​the carrier layer not covered by the overlay and / or the area of ​​the primer not covered by the overlay. Therefore, optical effects can be achieved by overprinting selected areas—for example, also during banknote printing—and a visible contrast can be generated, particularly between the areas with and without the overlay. This improvement is particularly advantageous when using polymer substrates.

[0016] Furthermore, it can be specified that the primer is applied using printing techniques. This allows for the economical achievement of a uniform and flat primer or base coat. This is particularly advantageous during subsequent substrate processing in the banknote printing process and contributes to achieving high product quality. Besides printing methods, applying the primer by painting, dipping, spraying, or roller coating is also conceivable and advantageous when necessary. Applying the primer using vacuum-based coating methods, such as plasma coating or PVD and CVD coating, can also be considered.

[0017] Furthermore, it can be specified that the primer structure is printable. Good printability is often important during banknote printing, especially in further processing of the substrate, and can sometimes lead to satisfactory or high final quality of the banknote paper or security paper, particularly polymer-based banknote paper or polymer-based security paper. In addition, good printability of the primer or substrate can have a beneficial effect on the banknote's durability or resistance. For example, good printability can be achieved through a flat primer, or through a structure or primer material that absorbs printing pigments well.

[0018] Another advantageous implementation specifies that the primer completely covers the carrier layer and / or the security features. For reasons of banknote security, it may sometimes be advantageous if the one or more security features are completely covered and therefore not visible from above, or only difficult to see or not clearly visible.

[0019] One possible improvement is that the primer partially covers the carrier layer and / or the security features. This area of ​​one or more security features not covered by the primer and therefore visible in a top view is commonly referred to in the industry as a window. Linear security features constructed in this way are often called window lines. Such windows can be constructed not only as so-called half-windows but also as full windows. Here, a half-window refers to a gap in the primer only on one side of the substrate, or a gap on one side of the primer. If the primer is applied to both sides of the substrate, and the gaps are positioned opposite or at least partially opposite or overlapping in the double-sided primer, this is called a full window in technical terms. These windows allow users to easily and quickly check the authenticity of banknotes. Furthermore, partially covering one or more security features can improve security, as the precise positioning of the window significantly increases the difficulty of counterfeiting or forging banknotes.

[0020] Advantageously, the anti-counterfeiting element can be constructed as an anti-counterfeiting line with a partially reflective and imaging layer, wherein the image can be constructed multiple times or repeatedly on the line. Especially when the primer is applied or printed partially and with precise registration onto the anti-counterfeiting line, it is possible that the repeated image is visible in the window and appears as a watermark in the area where it is registered or primed. Thus, two anti-counterfeiting effects can be achieved simultaneously using a single anti-counterfeiting element or line. Optionally or additionally, it may be advantageous for continuous or single images or subjects to be covered by primer in certain areas. For example, a portion of an image, such as a portion of a portrait, can be located in the window, i.e., not covered by primer. Another portion of the portrait can be located in the bridge area, i.e., the area covered by primer. In particular, if the anti-counterfeiting feature or a partially reflective and imaging layer is created during the working or manufacturing process and subsequently partially covered by primer, a very high-quality substrate that prevents highly counterfeiting can be produced. Here, the achievable consistency between two portions of a continuous image or portrait is not affected by registration fluctuations.

[0021] Furthermore, to achieve this purpose, the primer is configured to diffuse, specifically producing a white color impression under sunlight. This configuration has a particularly positive effect on banknotes that can be manufactured from the substrate, as the white primer layer or surface allows for particularly high-quality subsequent printing or the application of themes, numerals, etc. This layer or primer is also referred to as an opaque layer, or in English, an "opacifying layer." The ink used herein is also referred to herein as opaque ink.

[0022] Furthermore, particularly when disposed within a polymer substrate, the carrier layer can be made of plastic, especially a light-transmitting plastic, wherein the carrier layer preferably comprises at least one material selected from the following: polyimide (PI), polypropylene (PP), uniaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone (PEEK), polyetherketone (PEK), polyvinylimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystal polymer (LCP), polyester, and polyterephthalate. The material is made of butylene formate (PBT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), polyolefin copolymer (COC), polymethyl aldehyde (POM), acrylonitrile-butadiene-styrene (ABS), polyvinyl chloride (PVC), ethylene-tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF), and ethylene-tetrafluoroethylene-hexafluoropropylene fluorinated terpolymer (EFEP) and / or mixtures and / or copolymers and / or composites of these materials, or is made from at least one of these materials.

[0023] Furthermore, it can be specified that the carrier layer has a thickness of 5 μm to 700 μm, preferably 30 μm to 150 μm, particularly preferably 50 μm to 125 μm, and especially 65 μm to 90 μm.

[0024] According to a particular embodiment, the primer may have a thickness of 1 μm to 60 μm, preferably 5 μm to 50 μm, particularly preferably 7 μm to 45 μm, and especially 10 μm to 40 μm. In this respect, a thinner primer layer is advantageous because it helps to form a thin substrate. The final products, such as paper banknotes and polymer banknotes, should also have a thinner thickness so that they can be easily printed and can be stacked simply and space-savingly. For this purpose, forming a thin, but still covering, primer provides an advantageous foundation.

[0025] According to an advantageous improvement, at least one anti-counterfeiting element or at least one additional anti-counterfeiting element may be formed with optically variable features, optically identifiable features in transmission or reflection, machine-readable features, and / or by a substance or feature that absorbs and / or re-emits electromagnetic waves. Here, for example, it may be a printed layer, a fluorescent layer, a printed layer, a magnetic code, and / or an optically variable feature, especially a hologram and / or a color-changing base layer, such as a base layer having at least one color-changing thin layer element. Therefore, the user can choose from a large number of combinations and various possibilities of combinations of anti-counterfeiting features, thereby achieving a high degree of anti-counterfeiting. Machine-readable features specifically refer to magnetic codes, conductive layers, or substances that absorb and / or re-emit electromagnetic waves.

[0026] Particularly advantageous is that the reflective and imaging layer comprises at least one metallic material, particularly selected from silver, copper, aluminum, gold, platinum, niobium, tin, or selected from nickel, titanium, vanadium, chromium, cobalt, and palladium, or alloys of these materials, especially cobalt-nickel alloys, and / or comprises at least one dielectric material with a high refractive index (refractive index greater than 1.65), particularly selected from zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide (In2O3), indium tin oxide, etc. ITO, tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide (Y2O3), europium oxide (Eu2O3), iron oxides (e.g., iron (II, III) oxides (Fe3O4) and iron (III) oxides (Fe2O3)), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O3), praseodymium oxide (Pr6O) 11Samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (SiC), silicon nitride (Si3N4), silicon monoxide (SiO), selenium trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high-refractive organic monomers and / or high-refractive organic polymers or metal oxide layers, such as non-stoichiometric aluminum oxide, copper oxide or chromium oxide; and / or at least one metallic material composed of printing pigments or paints containing metallic pigments, particularly selected from aluminum, silver, copper, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, particularly cobalt-nickel alloys.

[0027] It is conceivable and advantageous to implement, for example, an anti-counterfeiting element constructed with a partially reflective and imaging layer, wherein the layer has an area comprising a metallic material and another area comprising an HRI material. Here, the primer can cover the area comprising the metallic material and leave the area comprising the HRI material unused. This can sometimes be achieved without perceptible movement to the observer, or with very good optical consistency with the area boundaries or transition areas, provided that registration is applied precisely. When this arrangement is observed in reflection, the image is perceptible to the observer in the window, i.e., in the unused area comprising the HRI material, and invisible in the bridge area, i.e., in the covered area comprising the metallic material. When the arrangement is observed in transmitted light, the opposite optical effect is achieved. Here, the image is invisible to the observer in the unused area comprising the HRI material, while the image is identifiable as a watermark in the bridge area, i.e., in the covered area comprising the metallic material. Here, the image can be a continuous subject composed of multiple areas constructed in different types, or the image can be formed by multiple subjects, symbols, or the like, wherein each subject or symbol can be formed by an independent area.

[0028] According to an advantageous improvement, the carrier layer and the primer can comprise the same material, particularly the same cellulose fiber-based material. Particularly advantageous is that the substrate is a paper substrate. Here, the paper substrate can be manufactured from pulp, i.e., from a pulp material containing an aqueous suspension, in a preferred continuous process step. Here, the carrier layer can be manufactured in which a security element, such as a security thread, can be introduced or blown in, and a primer formed from the same pulp is simultaneously applied to the security element on a partial or entire surface. Subsequently, the primer, which can be formed from paper like the carrier layer, can be printed during the banknote printing process.

[0029] Furthermore, the image formed by the partially reflective layer can be configured to be formed from image elements of different sizes and shapes, one of which is formed by a continuous surface of the partially reflective and imaging layer, wherein the partially reflective and imaging layer is interrupted between two image elements. An image element refers to, to some extent, a single grating dot or a single grating surface. In particular, it is advantageous here that the image formed by the partially reflective layer is constructed as a mosaic image.

[0030] Furthermore, it can be specified that image elements of different sizes correspond to different mosaics of the mosaic image.

[0031] Another advantageous implementation involves removing partially reflective areas where the imaging layer is interrupted, particularly through demetallization. This removal can be performed, for example, during washing or etching. Specifically, when the image layer is partially reflective and metallic, the removal can be achieved through demetallization. This allows for the creation of both positive and negative images. In a positive image, the image is formed by the metallic regions of the layer, while in a negative image, the image is formed by the demetallized regions of the layer. A positive image appears as a dark image against a bright background when viewed under transmitted light, while a negative image appears as a bright image against a dark background.

[0032] According to one improvement, partial reflection is possible, and the thickness of the imaging layer is the same in all non-blank regions of the layer. Furthermore, it is desirable that partial reflection occurs, and the thickness of the imaging layer differs in at least two non-blank regions of the layer. This allows for the creation of images with varying optical densities or multiple layers of shadow.

[0033] Furthermore, it may be specified that the anti-counterfeiting element has one or more additional layers, which in particular include protective varnish, heat-sealing varnish, adhesive, primer and / or foil.

[0034] According to the present invention, a valuable paper or anti-counterfeiting paper, particularly a polymer valuable paper or polymer anti-counterfeiting paper, is also provided, having a substrate comprising at least one anti-counterfeiting element, wherein the substrate is formed according to any one of the claims.

[0035] By means of the present invention, it is possible to manufacture paper or security paper having one or more highly secure security elements. If the substrate is a polymer substrate, this provides banknote manufacturers with a raw material that can, in principle, be further processed in the same way as or similar to the paper used for paper banknotes. Therefore, banknote manufacturers can, for example, manufacture paper banknotes and polymer banknotes using the same machines or process steps, or also with slight modifications. This benefits the economics of the entire production chain while resulting in higher product quality.

[0036] The anti-counterfeiting properties are further ensured by the one or more anti-counterfeiting elements constructed in or on the substrate, because the applied primer reduces the visibility of the one or more anti-counterfeiting elements. According to the invention, those areas on or in which the primer-covered anti-counterfeiting elements are constructed on or in the first substrate side and / or on the second substrate side can be perceived less noticeably or less obviously than those areas having and / or not having a carrier layer covered with primer. According to the invention, the primer for covering the one or more anti-counterfeiting elements is applied at least partially to the one or more anti-counterfeiting elements and / or the carrier layer, and the primer can also allow the substrate to be subsequently printed separately by the banknote manufacturer, such that at least selected areas are covered and are visible with less contrast or less noticeably or to a lesser degree. When an observer observes the substrate side on which the primer is applied, the observer can particularly identify or perceive the effect that the area covered by the primer is less visible than the area not covered by the primer. Of course, the substrate can also have primer on both sides. In these embodiments, the effect of lower visibility of the covered areas on both substrate sides can be seen. Alternatively, the one or more anti-counterfeiting elements may be arranged on or within the two outer surfaces of the carrier layer.

[0037] Anti-counterfeiting elements can be constructed, for example, as anti-counterfeiting lines, anti-counterfeiting strips, and the like, while other advantageous types or constructions known to those skilled in the art may also be considered.

[0038] According to a favorable improvement, the image formed by the partially reflective layer can be constructed as a mosaic image. For example, the construction of an anti-counterfeiting element having a partially reflective layer forming a mosaic image is known from EP1674286A1. Therefore, highly realistic, high-resolution, and high-quality or detailed images can be displayed from metallized dots or raster dots, where areas with different optical densities can also be achieved. If the corresponding anti-counterfeiting element is applied to or onto the substrate, for example as a line, strip, or transfer foil, and overprinted accordingly entirely or partially with a primer, the image or anti-counterfeiting element becomes, to a certain extent, a shadow image or watermark, or is perceived as a shadow image or watermark by the observer. Here, the primer acts as an opacifying layer. Multi-level watermarking can be achieved by sometimes realizing different optical densities in different image areas.

[0039] To better understand this invention, the following figures will be used to explain it in detail.

[0040] The diagrams are shown in very simplified form:

[0041] Figure 1 A top view showing one embodiment of the substrate is provided.

[0042] Figure 2A top view showing another embodiment of the substrate,

[0043] Figures 3A-3D Show Figure 2 The four cross sections of the substrate.

[0044] Firstly, it is stipulated that in different described embodiments, the same reference numerals or the same component names are used to represent the same parts, wherein the disclosure contained throughout the specification can be applied semantically to the same parts having the same reference numerals or the same component names. Location descriptions selected in the specification, such as upper, lower, bottom, side, etc., relate to the directly described and illustrated figures, and these location descriptions are applied semantically to the new location when the location changes.

[0045] Figure 1 A substrate 1 for manufacturing premium paper or anti-counterfeiting paper is shown. The substrate 1 comprises a carrier layer 2 and at least one anti-counterfeiting element 3, wherein the anti-counterfeiting element 3 is applied to and / or into the carrier layer 2, and wherein a primer 4 is at least partially applied to a first substrate side 5 and / or a second substrate side 6 of the substrate 1. Here, the primer 4 at least partially covers the anti-counterfeiting element 3 and / or the carrier layer 2, wherein the area of ​​the anti-counterfeiting element 3 covered by the primer 4 is less visible compared to the area of ​​the anti-counterfeiting element 3 not covered by the primer 4 and / or the area of ​​the carrier layer 2 not covered by the primer 4. Furthermore, the anti-counterfeiting element 3 is configured to have a partially reflective and imaging layer 7. Alternatively, the image formed by the partially reflective and imaging layer 7 may be configured as a mosaic image.

[0046] Here, the area of ​​the anti-counterfeiting element 3 covered by the primer 4 is not visible in the top view but is visible in the perspective view, or the area of ​​the anti-counterfeiting element 3 covered by the primer 4 is more visible in the perspective view than in the top view. The primer 4 can be applied using printing techniques. Furthermore, the primer 4 can be configured to be printable.

[0047] In particular, Figure 1The diagram shows a top view of a partial or arc-shaped area of ​​substrate 1, which can be a polymer substrate or a paper substrate. Here, substrate 1 or its arc-shaped area is divided into multiple zones by fine dotted lines, representing areas for the production of valuable paper or security paper from substrate 1 or from substrate 1 undergoing further processing. Here, security element 3, constructed as a security thread, is shown in two columns. Primer 4 can partially cover carrier layer 2 and / or security element 3. This partial coverage of security element 3, constructed as a security thread, is shown in the first column. The security thread, on which the numeral "10" is repeatedly reproduced by partial reflection and imaging layer 7, is alternately covered or uncovered by primer 4. In the covered areas, the numeral "10" is perceived as a shadow image or watermark, and in the uncovered areas, it is perceived as a "normal" or regular image, a mosaic image, or a raster image. Therefore, two security effects can be achieved by means of the same security element 3. Areas or sections not covered by the primer 4 are perceived by a user viewing the substrate 1 from above in a top view as so-called windows 12. If these windows 12 are located only on one side of the substrate 1, they are also called half-windows. If the areas not covered by the primer 4 are opposite each other, the resulting windows 12 are called full windows. However, the primer 4 may also cover the entire or complete surface of the carrier layer 2 and / or the anti-counterfeiting element 3. Figure 1 The second column shows this complete coverage of the anti-counterfeiting element 3, which is constructed as a security thread. Here, the security thread also reproduces the digit "10" by means of partial reflection and the imaging layer 7, where the entire security thread can be perceived by the observer as a shadow image or watermark. The primer 4 can also be constructed to diffuse. In particular, the primer 4 can produce a white color impression under sunlight.

[0048] The carrier layer 2 can be made of plastic, particularly of a light-transmitting plastic, wherein the carrier layer 2 preferably comprises at least one material selected from the following: polyimide (PI), polypropylene (PP), uniaxially oriented polypropylene (MOPP), biaxially oriented polypropylene (BOPP), polyethylene (PE), polyphenylene sulfide (PPS), polyetheretherketone (PEEK), polyetherketone (PEK), polyvinylimide (PEI), polysulfone (PSU), polyaryletherketone (PAEK), polyethylene naphthalate (PEN), liquid crystal polymer (LCP), polyester, polybutylene terephthalate (PET) BT), polyethylene terephthalate (PET), polyamide (PA), polycarbonate (PC), polyolefin copolymer (COC), polymethyl aldehyde (POM), acrylonitrile-butadiene-styrene (ABS), polyvinyl chloride (PVC), ethylene-tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl fluoride (PVF), polyvinylidene fluoride (PVDF), and ethylene-tetrafluoroethylene-hexafluoropropylene fluorinated terpolymer (EFEP) and / or mixtures and / or copolymers and / or composites of these materials, or made from at least one of these materials.

[0049] At least one anti-counterfeiting element 3 or at least one additional anti-counterfeiting element 3 can be formed with optically variable features, optically identifiable features in transmission or reflection, machine-readable features and / or by a substance or feature that absorbs and / or re-emits electromagnetic waves.

[0050] Partial reflection and imaging layer 7 may be at least one metallic material, particularly selected from silver, copper, aluminum, gold, platinum, niobium, tin, or selected from nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, especially cobalt-nickel alloys, and / or include at least one dielectric material with a high refractive index (refractive index greater than 1.65), particularly selected from zinc sulfide (ZnS), zinc oxide (ZnO), titanium dioxide (TiO2), carbon (C), indium oxide (In2O3), indium tin oxide (I 0.05 tantalum pentoxide (Ta2O5), cerium oxide (CeO2), yttrium oxide (Y2O3), europium oxide (Eu2O3), iron oxides (e.g., iron (II, III) oxides (Fe3O4) and iron (III) oxides (Fe2O3)), hafnium nitride (HfN), hafnium carbide (HfC), hafnium oxide (HfO2), lanthanum oxide (La2O3), magnesium oxide (MgO), neodymium oxide (Nd2O3), praseodymium oxide (Pr6O) 11Samarium oxide (Sm2O3), antimony trioxide (Sb2O3), silicon carbide (SiC), silicon nitride (Si3N4), silicon monoxide (SiO), selenium trioxide (Se2O3), tin oxide (SnO2), tungsten trioxide (WO3), high-refractive organic monomers and / or high-refractive organic polymers or metal oxide layers, such as non-stoichiometric aluminum oxide, copper oxide or chromium oxide; and / or at least one metallic material composed of printing pigments or paints containing metallic pigments, particularly selected from aluminum, silver, copper, gold, platinum, niobium, tin, or nickel, titanium, vanadium, chromium, cobalt and palladium or alloys of these materials, particularly cobalt-nickel alloys.

[0051] It is conceivable and advantageous to implement, for example, the anti-counterfeiting element 3 in which a partially reflective and imaging layer 7 is constructed, wherein the layer 7 has an area comprising a metallic material and another area comprising an HRI material. Here, a primer 4 can cover the area comprising the metallic material and leave the area comprising the HRI material uncovered. This can sometimes be achieved without movement perceptible to the observer, or with very good optical consistency with the area boundaries or transition areas, provided that the registration is applied precisely. When this arrangement is observed in reflection, the image is perceptible to the observer in the window 12, i.e., in the uncovered area comprising the HRI material, and invisible in the bridge area, i.e., in the covered area comprising the metallic material. When the arrangement is observed in transmitted light, the opposite optical effect is achieved. Here, the image is invisible to the observer in the uncovered area comprising the HRI material, and the image can be identified as a watermark in the bridge area, i.e., in the covered area comprising the metallic material. Here, an image can be a continuous subject composed of multiple regions constructed in different types, or an image can be formed by multiple subjects, symbols, or similar objects, where each pattern or symbol can be formed by independent regions.

[0052] The carrier layer 2 and the primer 4 can comprise the same material, particularly the same cellulose fiber-based material. It is particularly advantageous that the substrate 1 is a paper substrate. Here, the paper substrate can be manufactured from pulp, i.e., from a pulp material containing an aqueous suspension, in a preferred continuous process step. Here, the carrier layer 2 can be manufactured in which a security element 3, such as a security thread, can be introduced or blown in, and a primer 4 formed from the same pulp can be simultaneously applied to the security element on a partial or entire surface. Subsequently, the primer 4, which can be formed from paper and is the same as that of the carrier layer 2, can be printed during the banknote printing process.

[0053] exist Figure 1In the example, the image of the digit "10" repeatedly reproduced by the partially reflective layer can be formed by image elements 10 of different sizes and shapes, one of which can be formed by a continuous surface of the partially reflective imaging layer 7, and wherein the partially reflective imaging layer 7 is interrupted between two image elements 10. In particular, it is advantageous here that the image formed by the partially reflective layer 7 is constructed as a mosaic image. Image elements 10 of different sizes can also correspond to different mosaics of the mosaic image. The region interrupting the partially reflective imaging layer 7 can be formed by removing the layer 7, particularly by demetallization.

[0054] The anti-counterfeiting element 3 may have one or more additional layers, which in particular may include protective varnish, heat-sealing varnish, adhesive, primer, and / or foil. As is known to those skilled in the art, the substrate 1 may also have one or more additional layers. Therefore, the anti-counterfeiting element 3 and / or the carrier layer 2 and / or the primer 4 may also be at least partially covered by a covering layer, wherein the covered areas of the anti-counterfeiting element 3 may be less visible compared to areas of the anti-counterfeiting element 3 not covered by the covering layer and / or areas of the carrier layer 2 not covered by the covering layer and / or areas of the primer 4 not covered by the covering layer. This is especially true when the primer 4 is at least partially disposed between the carrier layer 2 and the anti-counterfeiting element 3.

[0055] According to Figure 1 The substrate 1 in the embodiments described herein can be used to manufacture valuable paper or anti-counterfeiting paper, having a substrate 1 including at least one anti-counterfeiting element 3, wherein the substrate 1 is constructed according to any one of the claims.

[0056] exist Figure 2 China and in Figures 3A to 3D Another embodiment of substrate 1, which is independent of it if necessary, is shown, wherein the same components are used as described above. Figure 1 The same reference numerals are used in the accompanying drawings. Specifically, substrate 1 can be a polymer substrate or a paper substrate. To avoid unnecessary repetition, these are indicated or referenced herein. Figure 1 The detailed description is in the text.

[0057] exist Figure 2 The diagram shows a top view of another embodiment of the substrate 1, particularly the area indicated by dashed lines for the saleable or anti-counterfeiting paper that can be mass-produced from the substrate 1. An anti-counterfeiting element 3 in the form of a security thread is applied to the substrate 1, the anti-counterfeiting element 3 repeatedly reproducing a temple-like theme. For this purpose, the anti-counterfeiting element 3 is constructed with a partially reflective and imaging layer 7. A primer 4 completely covers the carrier layer 2 and partially covers the anti-counterfeiting element 3. Where the anti-counterfeiting element 3 is partially covered by the primer 4, the theme or illustrated temple appears as a watermark or shaded image.

[0058] exist Figures 3A to 3D It shows Figure 2 The four cross-sections of the substrate 1, wherein the corresponding positions are indicated by arrows and letters. Figure 2 The corresponding cross-sectional position in the figure. According to the example, the primer 4 is only applied to the first substrate side 5. Of course, it is also conceivable, and if necessary and appropriate, that the primer 4 is also applied at least partially to the second substrate side 6. It is also conceivable that the anti-counterfeiting element 3 has one or more additional layers, which in particular may include protective varnish, heat-sealing varnish, adhesive, primer and / or foil. For simplicity and because the construction of such layers and their technical advantages are well known in the art, the description of these layers and their possible arrangements are omitted in the figures.

[0059] exist Figures 3A to 3D As shown, the image formed by the partially reflective imaging layer 7 can be formed from image elements 10 of different sizes and shapes, wherein the image elements 10 can be formed from continuous surfaces of the partially reflective imaging layer 7, and wherein the partially reflective imaging layer 7 can be interrupted between two image elements 10. In particular, it is also advantageous here that the image formed by the partially reflective imaging layer 7 is constructed as a mosaic image. Image elements 10 of different sizes can also correspond to different mosaics of the mosaic image. The regions that interrupt the partially reflective imaging layer 7 can be formed by removing the layer 7, particularly by demetallization.

[0060] Figure 3A A longitudinal section is shown passing through the anti-counterfeiting element 3, which is constructed as an anti-counterfeiting line. The areas not covered by the primer 4 are constructed here as windows 12. Figure 3C The diagram shows a longitudinal section through the substrate 1 in an area where the anti-counterfeiting element 3 is not constructed, wherein the primer 4 completely covers the carrier layer 2. Figure 3B The diagram shows a cross-sectional view of the temple theme passing through the anti-counterfeiting element 3, where the primer 4 does not cover the anti-counterfeiting element 3 and thus forms window 12. The temple theme is visible as a raster image in that window 12. Figure 3D The image shows a cross-sectional view of the temple theme passing through the anti-counterfeiting element 3, where the primer 4 completely covers the anti-counterfeiting element 3. The temple theme is visible here as a high-resolution shadow or watermark.

[0061] The carrier layer 2 may have a thickness 8 of 5 μm to 700 μm, preferably 30 μm to 150 μm, particularly preferably 50 μm to 125 μm, and especially 65 μm to 90 μm. The primer 4 may have a thickness 9 of 1 μm to 60 μm, preferably 5 μm to 50 μm, particularly preferably 7 μm to 45 μm, and especially 10 μm to 40 μm.

[0062] like Figure 3A , Figure 3B and Figure 3DAs exemplarily shown, partial reflection and the thickness 11 of the imaging layer 7 can be the same in all non-empty regions of layer 7. However, partial reflection and the thickness 11 of the imaging layer 7 can also be different in at least two non-empty regions of layer 7, wherein this conceivable embodiment is not shown in the figures.

[0063] Various embodiments are shown, and it should be noted that the invention is not limited to the same embodiments specifically shown, but different combinations of the various embodiments are also possible, and those skilled in the art are able to conceive of the possibilities of these variations based on the teachings of the specific invention on the technical process.

[0064] The scope of protection is defined by the claims. However, the claims should be interpreted with reference to the description and drawings. Individual features or combinations of features from the different embodiments shown and described can each demonstrate an independent inventive solution. Objectives based on independent inventive solutions can be derived from the description.

[0065] All descriptions of numerical ranges in this specification should be understood as including both any and all of the partial ranges. For example, the description of 1 to 10 should be understood as including all partial ranges based on a lower limit of 1 and an upper limit of 10, that is, all partial ranges that begin with a lower limit of 1 or greater and end with an upper limit of 10 or less, such as 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

[0066] As required, it must be noted at the end that, for better understanding of the construction, some components are shown out of proportion and / or enlarged and / or reduced.

[0067] Figure Labels

[0068] 1 Substrate

[0069] 2 Carrier Layer

[0070] 3 anti-counterfeiting elements

[0071] 4 Primer

[0072] 5 First substrate side

[0073] 6 Second substrate side

[0074] 7th floor

[0075] 8mm thickness

[0076] 9mm thickness

[0077] 10 image elements

[0078] 11mm thickness

[0079] 12 windows

Claims

1. A substrate (1) for the manufacture of value or security paper, characterized in that, The substrate (1) includes a carrier layer (2) and at least one anti-counterfeiting element (3), wherein the anti-counterfeiting element (3) is applied to and / or in the carrier layer (2) and wherein a primer (4) is at least partially applied to a first substrate side (5) and / or a second substrate side (6) of the substrate (1). The primer (4) is at least partially disposed between the carrier layer (2) and the anti-counterfeiting element (3). And / or the primer (4) at least partially covers the anti-counterfeiting element (3) and / or the carrier layer (2), wherein the area of ​​the anti-counterfeiting element (3) covered by the primer (4) is not easily visible compared to the area of ​​the anti-counterfeiting element (3) not covered by the primer (4) and / or the area of ​​the carrier layer (2) not covered by the primer (4). Furthermore, the anti-counterfeiting element (3) is constructed with a partially reflective and imaging layer (7), the primer (4) is constructed to be diffuse, the primer (4) produces a white color impression under sunlight, and the area of ​​the anti-counterfeiting element (3) covered by the primer (4) is invisible in top view but visible in perspective, or the area of ​​the anti-counterfeiting element (3) covered by the primer (4) is more visible in perspective than in top view.

2. The substrate (1) according to claim 1, characterized in that, The image formed by the reflection of the portion and the imaging layer (7) is a mosaic image.

3. The substrate (1) according to claim 1 or 2, characterized in that The substrate (1) is a polymer substrate or a paper substrate.

4. The substrate (1) according to claim 1 or 2, characterized in that The anti-counterfeiting element (3) and / or the carrier layer (2) and / or the primer (4) are at least partially covered by a cover layer, wherein the area covered by the cover layer of the anti-counterfeiting element (3) is less visible than the area of ​​the anti-counterfeiting element (3) not covered by the cover layer and / or the area of ​​the carrier layer (2) not covered by the cover layer and / or the area of ​​the primer (4) not covered by the cover layer.

5. The substrate (1) according to claim 1 or 2, characterized in that The primer (4) is applied by means of a printing technique.

6. The substrate (1) according to claim 1 or 2, characterized in that The primer (4) is configured to be printable.

7. The substrate (1) according to claim 1 or 2, characterized in that The primer (4) fully covers the carrier layer (2) and / or the anti-counterfeiting element (3).

8. The substrate (1) according to claim 1 or 2, characterized in that The primer (4) partially covers the carrier layer (2) and / or the anti-counterfeiting element (3).

9. The substrate (1) according to claim 1 or 2, characterized in that, The carrier layer (2) is made of plastic.

10. The substrate (1) according to claim 1 or 2, characterized in that The carrier layer (2) has a thickness (8) of 5 μm to 700 μm.

11. The substrate (1) according to claim 1 or 2, characterized in that The primer (4) has a thickness (9) of 1 μm to 60 μm.

12. The substrate (1) according to claim 1 or 2, characterized in that The at least one anti-counterfeiting element (3) or at least one other anti-counterfeiting element (3) is formed by optically variable features, optically identifiable features in transmission or reflection, machine-readable features and / or by a substance or feature that absorbs and / or re-emits electromagnetic waves.

13. The substrate (1) according to claim 1 or 2, characterized in that The reflective and imaging layer (7) of the portion comprises at least one metallic material and / or at least one dielectric material with a high refractive index greater than 1.

65.

14. The substrate (1) according to claim 1 or 2, characterized in that The image formed by the partial reflective and imaging layer (7) consists of image elements (10) of different sizes and shapes, wherein the image elements (10) are formed by continuous surfaces of the partial reflective and imaging layer (7), and wherein the partial reflective and imaging layer (7) is interrupted between two image elements (10).

15. The substrate (1) according to claim 14, characterized in that Image elements of different sizes (10) correspond to different mosaics of the mosaic image.

16. The substrate (1) according to claim 1 or 2, characterized in that The region where the reflection of the portion is interrupted and the imaging layer (7) is formed by removing the imaging layer (7).

17. The substrate (1) according to claim 1 or 2, characterized in that The reflection of the portion and the thickness (11) of the imaging layer (7) are the same in all non-blank areas of the imaging layer (7).

18. The substrate (1) according to claim 1 or 2, characterized in that The reflection of the portion and the thickness (11) of the imaging layer (7) are different in at least two non-blank regions of the imaging layer (7).

19. The substrate (1) according to claim 1 or 2, characterized in that The anti-counterfeiting element (3) has one or more additional layers, the additional layers including protective paint, heat-sealing paint, adhesive, primer and / or foil.

20. The substrate (1) according to claim 1 or 2, characterized in that, The carrier layer (2) and the primer (4) contain the same material.

21. Value or security paper comprising a substrate (1) having at least one security element (3), characterized in that The substrate (1) is formed according to any one of claims 1 to 20.

Images