3678results about "Information cards" patented technology

A system and a method for verifying authenticity of a physical copy and a digital copy of a document are disclosed. The method comprises registering a document in a repository by storing details related to the document in a location of the repository. A symbology for the document is generated. The symbology is an identifier of the location of the repository comprising the document. The symbology is associated with either a physical or a digital copy of the document. The digital copy of the document is printed to generate a printed copy. The printed copy or the physical copy of the document is scanned to generate a scanned image. The document and the details related to the document present at the location of the repository are accessed. The scanned image is compared with the document stored in the repository to determine the authenticity of either the physical copy or the digital copy of the document.

The invention relates to a security element (100) comprising a motif layer (10) and an effect layer, particularly for documents (200) such as valuables, identity documents, security papers, or card-shaped data carriers. The effect layer (20) is arranged above the motif layer (10) and exhibits an optical effect when viewed under visible light. The effect layer (20) is transparent to infrared light, and the motif layer (10) is reflective or absorbent to infrared light, such that the motif layer (10) becomes visible through the effect layer (20) when viewed under infrared light. The motif layer (10) is configured to represent at least one first motif (30). The invention further relates to a document (200) with a corresponding security element (100) and a method (300) for producing such a document (100).

The invention discloses a preparation method and application of an all-inorganic vacancy ordered double-perovskite luminescent material, and belongs to the technical field of lead-free perovskite luminescent materials. The preparation method comprises the following steps: putting raw materials CsCl and ZrCl4 into a polytetrafluoroethylene lining, and mixing; then adding Sb2O3 and 8-Hydroxyquinine, adding hydrochloric acid as a solvent, and stirring for one hour so that the Sb2O3 and the 8-Hydroxyquinine are fully and uniformly mixed; and finally, putting the polytetrafluoroethylene lining into a cylinder sleeve of a reaction kettle, putting the polytetrafluoroethylene lining into a drying oven for reaction, slowly cooling the polytetrafluoroethylene lining to room temperature in the drying oven after the reaction is finished, cleaning the polytetrafluoroethylene lining with absolute ethyl alcohol, and drying the polytetrafluoroethylene lining to obtain the lead-free perovskite material. The prepared full-inorganic vacancy ordered double perovskite luminescent material can emit visible green light, yellow light and orange light under 365 nm excitation, and can be applied to triplet state luminescence regulation and thermal response information encryption.

In a general aspect, unique unclonable physical identifiers are applied and used. A method of applying the unique marker can include receiving an object having a surface feature and forming a unique marker on the surface feature of the object. The unique marker includes a distribution of elements and conforms with a morphology of the surface feature. The method further includes extracting orientation information from the unique marker. The orientation information can indicate relative spatial orientations of the respective elements. The method additionally includes generating a unique code for the object based on the orientation information. The surface feature can be facets, surface patterns, textures, or other indentations of the object. The surface feature can include a region of the object that is susceptible to tampering.

Devices configured to emit colored light when illuminated with ultraviolet light and color-shifting displays containing the same are disclosed.

Disclosed are devices with dynamic optical properties suitable for use as security or authentication devices, for example for documents or items of importance or value, in order to help prevent counterfeit of the same. Such devices, at least in selected embodiments, enable observation of dynamic changes or moving entities within the device by collective or enhanced imaging of the dynamic changes or moveable entities, the motion or position of which may otherwise be difficult to observe, or indiscernible to, the naked eye.

Provided is a layer structure, preferably a security form in a book cover, particularly preferably a security form in a book cover for identification or security documents, comprising at least a) a first radiation-engravable layer a) containing at least one polymeric material; and b) at least one further layer b) containing at least one polymeric material, preferably a thermoplastic elastomer, preferably a thermoplastic polyurethane with a hardness of ≥40 Shore A according to DIN ISO 7619-1-2012-2 to ≤95 Shore D according to DIN ISO 7619-1-2012-2; wherein the further layer b) overlies the first layer a) at least partly to form an overlapping region, and wherein a coherent engraving partly extends in the overlap region, preferably in the further layer b), and partly in the portion of layer a) that extends outside the overlap region, most preferably exclusively in the further layer b). The invention also relates to a method for producing this layer structure and to a laminate comprising such a layer structure and to the use of the layer structure in a security document.

A personalizable security document includes a combination of two secure features, namely, a laser-engravable material, and a hologram overlapping the laser-engravable material. The metallic properties of the laser-engravable material result in an enhancement of the holographic effect obtained from the hologram. Additionally, the hologram may extend to other portions of the security document in a continuous manner, for example, as a full-page hologram. This may connect the secondary image formed in the laser-engravable material with other features provided in different portions of the security document to further increase the security.

A security element for value documents or security documents comprises at least one security feature, wherein the security element comprises at least one recycled material, and / or at least one material made of renewable raw materials, and / or at least one biologically degradable and / or marine-degradable material. Polymer substrates, value documents, and security documents for such security elements are also disclosed.

A secure document including a first layer having a metal holographic structure forming an arrangement of pixels each including a plurality of sub-pixels of distinct colors and a second layer positioned facing the first layer, the second layer being opaque to at least the visible wavelength spectrum. The first layer includes perforations formed by a first laser beam, the first perforations locally revealing through the holographic structure a number of dark areas in the sub-pixels caused by underlying regions of the second opaque layer such as to form a personalized image starting from the arrangement of pixels combined with the dark areas.

The present invention provides a composite pigment, which comprises a first cholesteric liquid crystal pigment and a second cholesteric liquid crystal pigment. The above-mentioned first cholesteric liquid crystal pigment is a pigment having a center wavelength of a selective reflection band in the range of 400 nm or more and 800 nm or less and a selective reflection bandwidth of 150 nm or less. The above-mentioned second cholesteric liquid crystal pigment is a pigment having a selective reflection bandwidth of 200 nm or more in the range of 400 nm or more and 800 nm or less. At least a part of the selective reflection band of the above-mentioned first cholesteric liquid crystal pigment overlaps with the selective reflection band of the above-mentioned second cholesteric liquid crystal pigment. With respect to the total amount of the above-mentioned first cholesteric liquid crystal pigment and the above-mentioned second cholesteric liquid crystal pigment, the content of the above-mentioned first cholesteric liquid crystal pigment is more than 0% by weight and 30% by weight or less.

An article including at least one first metallic layer, at least one dielectric layer; and at least one second metallic layer is disclosed. The at least one dielectric layer can include at least one of (i) a photo-initiator, (ii) an oxygen inhibition mitigation composition, (iii) a leveling agent, and (iv) a defoamer.

Document (100) with a security feature, comprising: a first substrate layer (103) having a first substrate layer region (105), wherein the substrate layer region (105) is impregnated with a black fluid over the entire thickness of the first substrate layer (103), the black fluid having carbon particles; a second substrate layer (107) with a second substrate layer region (109), wherein the second substrate layer (107) is arranged above the first substrate layer (103), the second substrate layer region (109) having a light reflection characteristic which differs from a light reflection characteristic of the first substrate layer region (105), wherein the first substrate layer region (105) and the second substrate layer region (109) form a composite security feature.

A value document system, a method for identifying a value document of a value document system, and a luminescent substance set, wherein the value document system includes at least a first value document and a second value document. The first value document has a security feature composed of a combination of at least a first and a second luminescent substance of a first or a second substance class. The second value document has a security feature with at least a first luminescent substance of the first or second substance class. The security feature of the first value document has at least a different intensity ratio of the emission, a different decay time ratio and / or a different decay time sum in two adjacent spectral ranges compared with the security feature of the second value document.

The present disclosure relates to a method of manufacturing a security sheet (45) comprising a plastic substrate (20). The plastic substrate comprises opposing first and second outer surfaces (21, 22), a first concealing region (25) extending between the first and second outer surfaces and a laser markable region (29) at least partially located between the first concealing region and the second outer surface. Laser radiation (36) is directed from the first outer surface, through the first concealing region and onto the laser markable region to form at least one data element (40) in the laser markable region such that the at least one data element is hidden from view by the first concealing region when the first outer surface is viewed by the naked eye in reflected light.

The invention relates to the technical field of functional liquid crystal materials, and discloses a liquid crystal film with an intelligent information encryption function and a preparation method and application thereof. The liquid crystal thin film comprises two layers of transparent substrates arranged in parallel and a composite functional layer between the transparent substrates. The composite functional layer comprises a honeycomb polymer matrix and liquid crystals filled in holes of the polymer matrix, and a polymer network is arranged in the liquid crystals; the distribution densities of the polymer networks in different areas of the liquid crystal film are different, so that the liquid crystal film has reversible information patterns which disappear (or display) during power-on and display (or disappear) after power-off; or the reversible change information pattern disappears (or is displayed) at a low temperature and is displayed (or disappears) at a high temperature. The distribution densities of polymer networks in different areas of the liquid crystal film are different, multiple responses of an electric field, a temperature, a magnetic field and the like are achieved, the visual effect that information patterns exist from nothing, exist from existence to nothing or change colors can be achieved, and therefore the intelligent information encryption function is achieved.

The invention relates to an optically variable security element (12) for securing valuables (10), having a reflective surface area (14) containing a plurality of reflective pixel elements (20) which together produce an optically variable motif representation, the appearance of which changes when the security element is tilted along a first direction (16) in the plane of the reflective surface area.According to the invention, it is provided that the pixel elements (20) along the first direction (16) each have an inclination to the reflective surface region (14) which is constant except for any isolated discontinuities, that the pixel elements (20) along a second direction (18) perpendicular to the first direction in the plane of the reflective surface region each have an inclination to the reflective surface region (14), which inclination varies in the entire surface region (14) or in two or more partial surface regions (52, 54; 60, 62, 64) visible to the naked eye, in each case except for any isolated discontinuities, within a predetermined inclination range, whereby the optically variable motif representation appears with a substantially uniform brightness in the entire surface region or in the said partial surface regions when tilted along the second direction (18).

In a general aspect, orientation information is used to generate a unique code. In some aspects, orientation information is extracted from an object. The object includes multiple elements, and the orientation information indicates the relative spatial orientations of the respective elements. The orientation information can be extracted, for instance, by a scanner system that detects the elements. A unique code is generated for the object based on the orientation information. In some examples, the elements are diamond particles that each have one or more color centers, and the orientation information is extracted by detecting the color centers.

The disclosure includes a system and method for obtaining at least one image of a document under test, wherein valid instances of the document under test include at least one three-dimensional security feature; obtaining a first image snippet from the document under test, the first image snippet corresponding to at least a first portion of the three-dimensional security feature present in the valid instances of the document; deriving first dimensional data associated with the first image snippet; analyzing the first dimensional data to determine one or more of: whether the first dimensional data is consistent with a presence of the three-dimensional security feature, and whether the first dimensional data is consistent with second dimensional data; and modifying a likelihood that the document under test is accepted as valid, or rejected as invalid, based on the analysis of the first dimensional data.

The invention relates to the technical field of anti-counterfeiting, and discloses an anti-counterfeiting element, which comprises a dynamic pattern, the dynamic pattern comprises at least one bright line, and a region where the bright line moves is a feature region; the feature region comprises a plurality of curved surface structures, each curved surface structure has a plurality of light coordinates parallel to the surface of the feature region, each light coordinate comprises a first direction and a second direction, and each light coordinate is in one-to-one correspondence with line segments with different curvatures on the bright line; the curved surface structure is bent in the first direction, and the bending degree of the curved surface structure in the second direction is smaller than that of the curved surface structure in the first direction. The curved surface structure is bent along the first direction, so that the emergent light of the curved surface structure can be emitted in a fan-shaped direction range under the incident light in the preset direction, and the angle distribution of the emergent light is more uniform, that is, the single curved surface structure can obtain a combined effect equivalent to that of a plurality of reflective facets in the prior art; and the dynamic effect of bright line movement is clearer.

The invention provides an optical anti-counterfeiting film with a three-dimensional dynamic display effect, the minimum function structure of the optical anti-counterfeiting film comprises a first Moire image layer, a transparent optical refraction layer and a second Moire image layer which generates a Moire effect with the first Moire image layer, one of two coherent Moire images is processed on the front surface of the transparent optical film, and the other of the two coherent Moire images is processed on the rear surface of the transparent optical refraction layer. And the other one of the two coherent Moire images is processed at the corresponding position of the rear surface, and the period of the Moire image has a strict mathematical relationship with the refractive index n of the optical transparent material and the thickness h of the optical transparent material, so that a three-dimensional dynamic pattern effect capable of being observed by naked eyes is realized. According to different processing methods, the manufacturing method of the optical anti-counterfeiting film and the product of the optical anti-counterfeiting film can be realized from the cost of common printing to the cost of high-precision micro-nano processing such as electron beam lithography, the market requirements of various grades can be met, and the anti-counterfeiting difficulty grade can be changed according to different image design and processing methods.

The invention relates to the technical field of flexible packaging, in particular to a degradable holographic anti-counterfeiting laser packaging material and a preparation method thereof. The degradable holographic anti-counterfeiting laser packaging material comprises a surface coating, a first polylactic acid film layer, a first adhesive layer, a holographic laser layer, a vacuum aluminum-plated layer, a second adhesive layer and a second polylactic acid film layer, the surface coating, the first polylactic acid film layer, the first adhesive layer, the holographic laser layer, the vacuum aluminum-plated layer, the second adhesive layer and the second polylactic acid film layer are sequentially arranged from top to bottom. The packaging material provided by the invention has the characteristics of heat sealability, degradability and direct food contact, and also has a very good anti-counterfeiting effect and a beautiful appearance.

The present invention refers to a pre-laminated structure for a security document comprising: a core structure comprising one or more core layers; a first cover layer formed on one side of the core structure and having a see-through portion; a second cover layer formed on the opposite side of the core structure and having a cutout portion aligned with the see-through portion; and an inlay; wherein a third cutout portion is formed in at least one of the one or more core layers and the inlay is at least partially inserted in the third cutout portion, and wherein the third cutout portion is positioned so as to have at least one portion aligned with the see-through portion and the cutout portion. The present invention refers also to the security document comprising said pre-laminated structure and to the methods for forming the pre-laminated structure and the security document.

A printed fabric for assessing authenticity, the printed fabric having a fabric and a print layer located on the fabric, wherein: the smoothness of the fabric, as measured through the smoothness testing method disclosed in JIS P 8155:2010, is 0.5 seconds or greater, and a printed portion of the print layer contains an inorganic infrared-absorbing pigment in an amount ranging from 5 mg / m2 to 400 mg / m2 inclusive per unit area.

The invention relates to the technical field of anti-counterfeiting, and discloses an anti-counterfeiting element which comprises a base material, the surface of the base material is provided with a feature area, and the feature area comprises a plurality of curved surface structures; the curved surface structure has a first direction and a second direction which are parallel to the surface of the base material, the curved surface structure is bent in the first direction, and the bending degree of the curved surface structure in the second direction is smaller than that of the curved surface structure in the first direction. The plurality of curved surface structures are arranged in the characteristic area, and each curved surface structure is bent along the first direction, so that the emergent light of the curved surface structures can be emitted in a fan-shaped direction range under the incident light in the preset direction, the angle distribution of the emergent light is more uniform, and the light emitting efficiency is improved. Therefore, even if a single curved surface structure can obtain a combined effect equivalent to that of a plurality of reflective facets in the prior art, not only can a dynamic effect with higher resolution be realized, but also a finer and more stable appearance pattern can be realized, and the visual angle range is widened.

The invention relates to the technical field of biaxially oriented polypropylene films, in particular to a paper-plastic composite biaxially oriented polypropylene film and a preparation method and application thereof.The paper-plastic composite biaxially oriented polypropylene film comprises a coining surface layer, a core layer and a low-melting-point thermal composite layer which are sequentially arranged, and the coining surface layer comprises co-polypropylene and 15-25 wt% of ethylene-norbornene copolymer A; the low-melting-point thermal composite layer comprises 5-10wt% of an ethylene-norbornene copolymer B and an ethylene-vinyl acetate copolymer, and the core layer comprises polypropylene. The paper-plastic composite biaxially oriented polypropylene film disclosed by the invention can meet the requirements of a laser holographic imprinting process of an imprinting surface layer on the premise of not influencing the performance of a low-melting-point thermal compounding layer, can be directly thermally compounded with aluminum-plated card paper without an adhesive layer, is high in compounding strength, has the advantages of energy conservation and environmental protection, and is suitable for popularization and application. And the laser anti-counterfeiting card paper obtained after film covering and aluminum plating is good in barrier property, and the shelf life of packaged contents can be prolonged.

The present invention relates to the technical field of security features comprising taggants by means of Surface-Enhanced Raman Spectroscopy (SERS) and their detection. Furthermore, the present invention relates to the field of UV-Vis curable security inks comprising SERS tags for printing security features on substrates, in particular on security documents or articles, wherein said inks comprise i) one or more surface enhanced Raman spectroscopy (SERS) tags, ii) one or more vinyl ether containing compounds, iii) one or more cationically radiation curable compounds different from the one or more vinyl ether containing compounds of ii) and iv) one or more cationic photoinitiators being a salt of hexafluorophosphate.

An optical product can be configured, when illuminated, to reproduce an image that appears to be a 3D image of at least a part of a 3D object. The optical product can include a surface comprising a plurality of portions. Each portion can correspond to a point on a surface of the 3D object. One or more non-holographic features can be disposed within each portion configured to produce at least part of the image without relying on diffraction. An interference optical structure can be disposed on one or more features. A gradient in the features can correlate to a surface normal of the surface of the 3D object at the corresponding point. An orientation of the features can correlate to an orientation of the surface of the 3D object at the corresponding point.