Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
  • B42D25/373—Metallic materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/351—Translucent or partly translucent parts, e.g. windows
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials

Definitions

• the invention relates to a security element made of an interference-capable, multi-layered construction which consists of at least one reflective layer, at least one partially transparent layer and at least one dielectric layer arranged between the reflective layer and the partially transparent layer.
• a security element is known, for example, from WO 2009/149831 A2.
• This security element additionally has in a first region a plurality of recesses in the reflective layer and in a second region at least one recess or a plurality of recesses in the partially transparent layer.
• the second area is arranged at least partially within the first area, and the total area of the second area, which is arranged at least partially within the first area, is smaller than the total area of the first area.
• the security element has a different appearance in plan view than in phantom.
• the invention has the object of developing a generic security element such that the protection against counterfeiting is further increased. This object is solved by the features of the independent claims. Further developments of the invention are the subject of the dependent claims.
• the at least one reflective layer is translucent, while For example, by being designed in the form of a grid or partially reflecting, wherein at least in the first region on the reflective layer, a semitransparent, preferably opaque coating is applied, which is formed in the form of information.
• the security element shows, viewed from the partially permeable layer, a different appearance in supervision than in review.
• the interference-capable, multilayer structure is particularly preferably a thin-layer Colorshift system, consisting of a three-layer structure of absorber, dielectric and reflector.
• the reflector consists for example of Al, Cu, gold-colored, metallic or translucent colors
• the dielectric consists for example of SiOx, MgF, nitrocellulose or polymer
• the absorber consists for example of Cr.
• the semitransparent, preferably opaque, coating consists, for example, of an opaque or metallic color containing, for example, gold, silver, copper or OVI pigments, although it is also possible to use a plurality of colors comprising multicolor, tonal, multitonal grayscale or true colors Picture result.
• the screening consists of a dot, line or character grid with hidden information, nano-writing or micro-writing.
• the semitransparent, preferably opaque coating has a combination with other functions, such as fluorescent substances or machine-readable substances, such as IR, UV or magnetically readable feature substances.
• the security element according to the invention is combined with further effects, in particular with holograms, micro-optically variable systems such as, for example, micromirrors, microlenses or microfine lenses.
• the information or motifs of back and reflector raster image complement one another to form an entire image or complement one another with other motifs which have been produced by means of imaging methods, such as printing or lasering.
• the security element according to the invention is applied to a banknote, wherein the information or motif of the semi-transparent, preferably opaque coating and / or the entire see-through information on the banknote is additionally present, for example, in the watermark and / or print motifs and / or slide motifs.
• an individual marking such as, for example, parts of a numbering or the entire citation can be applied or applied, for example by means of laser ablation on only one or both sides or completely as a see-through element.
• the interference-capable, multi-layered structure can either be vapor-deposited or applied by means of a printing process.
• the interference-capable, multilayer structure may preferably have a metallic luster, in particular a gold-colored.
• the gold color or the corresponding golden pigments can also be magnetic, as known, for example, from EP 2445972 A1. Also known from EP 2417207 Bl known magnetic pigments can be used. These are magnetic pigments, which are covered in opaque color, so that you get yellow, blue, red pigments.
• gold-colored magnetic core pigments are used which are magnetically detectable and IR-transparent.
• the example gold-colored portrait can be magnetic and possibly even additionally a machine-readable magnetic coding or marking be present elsewhere, which is not visible or partially visible or completely visible.
• Translucency in the sense of this invention means that an object, such as the substrate or the plastic film, allows light to pass incident light in a certain proportion. If light strikes one side of the object, a certain portion of the light is transmitted to the other side of the object and exits there again. The greater the percentage of transmitted light relative to the incident light, the more translucent the object is. If the percentage is at least 90%, ie if the object allows the incident light to pass through almost unimpaired, as in the case of a window, the object is called transparent.
• an object which transmits less than 10% and preferably about 0% of the incident light ie in which the amount of transmitted light is small or near or equal to zero with respect to the incident light, is said to be opaque or non-translucent
• Review is when the illumination of the substrate is from one side and viewing from the other side.
• Supervision is when the illumination and viewing is from the same side of the substrate.
• the substrate to which a security element according to the invention can be applied 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 of polymer such as PET, BOPP, PP or PA.
• the substrate consists of a combination of at least two superimposed and interconnected different substrates, a so-called hybrid.
• the substrate consists, for example, of a combination of plastic film-paper
• Plastic film i. a substrate of paper 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.
• 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 .
• any other suitable weight can be used.
• Security documents 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 forgery such as passports and other identity documents, as well as cards such as, for example Credit or debit cards whose card body has at least one layer of security paper and also product security elements such as labels, seals, packaging and the like.
• the simplified term value document includes all the above materials, documents and product safeguards.
• front side or back side of the substrate or value document are relative terms, which may also be referred to as "the one" and “the opposite” side and which constitute the overwhelming portion of the overall surface 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 typically 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.
• the information can for example form a graphic image, a picture, a number, a letter, a text or other characters.
• the information consists of positive or / and negative motives.
• a positive motive is In this case, a motif element itself applied to the substrate, whereas in a negative motif of the area surrounding the motif element is applied to the substrate.
• 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.
• FIG. 1 shows a known from the prior art interference capable, multilayer structure in the form of a thin-film Colorshift- system on a support substrate
• FIG. 1 shows a known from the prior art interference capable, multi-layered structure in the form of a thin-film Colorshift system 100 on a support substrate 4, consisting of a metallic reflector layer 3 with recesses 6, a spacer layer or a dielectric 2 and an absorber layer. 1 with recesses 5.
• an angle-dependent Colorshift impression In supervision of the Front 10 results in the areas without recesses 5 and 6, for example in the area 101, an angle-dependent Colorshift impression.
• the regions with recesses 5 in the absorber layer 1 for example the region 104, there is no angle-dependent color shift impression, but a silver-gray region independent of the viewing angle.
• the back 11 results everywhere a silver-gray color impression.
• the silver-gray-appearing region 103 here also adjoins regions which appear gray, in contrast to the region 104 which is surrounded by regions which form a region have angle-dependent color shift.
• the area 106 appears to be colorless and transparent in transparency due to the absence of a reflector and absorber.
• Fig. 2 shows a first embodiment of the invention.
• the thin-film Colorshift system 100 is applied to a carrier substrate 4.
• a transparency information from a semi-transparent, but preferably opaque color 7 is applied in some areas, the recesses 8 has.
• the reflector layer 3 is configured as a full-surface, thin semitransparent metal vapor deposition, so that the complete transparency information can be seen on the rear side from the rear side. Due to the recesses 8 is from both sides in review information, consisting of the areas 7 to see.
• the layer 1 with the recesses 5 results in no or negligible information in review and therefore does not interfere with the information to be seen in the area 7 with the recesses 8.
• FIG. 3 shows a second embodiment of the invention.
• the complete see-through information is not arranged on the other side 11 of the carrier substrate 4 relative to the thin-film Colorshift system 100, but on the same side of the film 10 as the thin-film Colorshift system 100 this layer is lying inside and particularly preferably protected against manipulation and abrasion.
• Fig. 4 shows a third embodiment of the invention.
• the semitransparent reflector layer 3 is formed by a full-surface screening of the reflector layer 3 through small recesses 9.
• Fig. 5 shows a fourth embodiment of the invention.
• the complete view information is not arranged on the other side 11 of the carrier substrate relative to the thin-film Colorshift system 100, but on the same side of the film 10 as the Thin-film Colorshift system 100.
• this layer is lying inside and particularly preferably protected against manipulation and abrasion.
• Fig. 6 shows a fifth embodiment of the invention.
• a see-through information results in contrast to the previous embodiments from the areas of the reflector metal 3 and the corresponding recesses 6 in combination with the opaque backprint 7 and the corresponding recesses 8. Both information 3 and 7 together form an image.
• the two pieces of information lie on different sides of the carrier substrate 4, ie, the area-wise demetallised reflector layer 3 on the side 10 of the thin-film system and the printed opaque layer 7 on the opposite side 11.
• Fig. 7 shows a sixth embodiment of the invention.
• the two information are on the same side 10 of the carrier substrate 4, i. the partially demetallized reflector layer 3 and the printed opaque layer 7 are arranged on the same side.
• Fig. 8 shows an embodiment for the first to fourth embodiments, wherein the entire see-through information C is generated by a reverse side printing B with recesses 8.
• Thin-film Colorshift system is semi-transparent or micro-rasterized.
• the portrait may have a different visible color than the surrounding pattern, for example honeycomb pattern.
• 9 shows an embodiment for the fifth to sixth embodiments, wherein the see-through information C is generated by a back side print B with recesses 8 in combination with the partially demetallized reflector surface 3.
• the portrait 7 may have a different visible color than the surrounding pattern, for example honeycomb pattern.
• the partial image A has a micro-grid in the reflector region 3 in the central area and another visible pattern, a nested honeycomb pattern in the same reflector layer 3, in the surrounding area. The fine micro-grid in the central area of A does not disturb the information B in the resulting see-through information C, and the honeycomb patterns of A are also seen in C.
• Fig. 10 shows an embodiment for different rasters of the backside imprint.
• Both the back pressure B and 7 and the demetallized reflector metal A and 3 can have any screening with respect to shape and density, so that a coarse or a fine resolution can be achieved.
• With the rasterization or hatching also a certain three-dimensionality or a 3D spatial effect / plasticity and / or multi-tonality can be achieved.
• the raster elements can have any desired shapes including alphanumeric characters or symbols, preferably circle, ellipse, square, diamond or line.
• the resolutions are in the range of 10 ⁇ to 1000 ⁇ , preferably between 25 ⁇ and 500 ⁇ .

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• Credit Cards Or The Like (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=60201998

Family Applications (1)

Country Status (4)

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Family Cites Families (11)

• 2016
  • 2016-11-07 DE DE102016013242.6A patent/DE102016013242A1/de not_active Withdrawn
• 2017
  • 2017-10-27 CN CN201780065473.1A patent/CN109863036B/zh active Active
  • 2017-10-27 EP EP17793569.9A patent/EP3535135A1/de not_active Withdrawn
  • 2017-10-27 WO PCT/EP2017/001264 patent/WO2018082806A1/de unknown

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