Abrégé

The present invention relates to a security marker; a method of preparing same; the use of said security marker; a security article, document, or element comprising said marker; the use of said security article, document, or element; an object of value comprising said marker; a method of preparing said security article, document, or element or said object of value; a method for determining the authenticity of said security article, document, or element or said object of value; and a system for determining the authenticity of said security article, document, or element or said object of value.

Classes IPC  ?

• A61L 15/42 - Utilisation de matériaux caractérisés par leur fonction ou leurs propriétés physiques
• C04B 28/00 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p.ex. contenant des ciments de polycarboxylates
• C04B 41/00 - Post-traitement des mortiers, du béton, de la pierre artificielle ou des céramiques; Traitement de la pierre naturelle
• G01N 21/65 - Diffusion de Raman
• G07D 7/1205 - Test des propriétés spectrales
• B82Y 30/00 - Nanotechnologie pour matériaux ou science des surfaces, p.ex. nanocomposites

Abrégé

The present invention relates to a nanostructured phosphorescent pigment comprising an Al2O3 substrate; MAl2O4:X nanocrystals, where M is a cation selected from Ca2+, Sr2+, Ba2+, Mg2+, Zn2+ and combinations thereof and where X is a cation selected from Eu2+, Dy3+, Nd3+, Er3+, La3+, Lu3+, Ce3+, Y3+, Sm3+, Gd3+, Tb3+, Tm3+, Yb3+ and combinations thereof, disposed on the Al2O3 substrate; and nanocrystals of molten salt disposed on the MAl2O4:X nanocrystals. Additionally, the invention relates to a method for preparing the nanostructured phosphorescent pigment of the invention comprising the steps of i) mixing starting materials comprising a cation M precursor, a cation X precursor, Al2O3 and a molten salt; ii) heating the mixture resulting from step (i) in reducing atmosphere. The invention also relates to the use of the nanostructured phosphorescent pigment of the invention for signaling, illumination, decoration or authentication and to a security article comprising the nanostructured phosphorescent pigment of the invention.

Classes IPC  ?

• C09K 11/02 - Emploi de substances particulières comme liants, revêtements de particules ou milieux de suspension
• C09K 11/77 - Substances luminescentes, p.ex. électroluminescentes, chimiluminescentes contenant des substances inorganiques luminescentes contenant des métaux des terres rares
• C09D 5/22 - Peintures lumineuses

Abrégé

Method of providing a security document with a security feature, comprising the step of providing a conductive layer (22), and the step of removing part of said conductive layer (22) so as to convert at least a portion of said conductive layer into a metamaterial (31, 32) selected to provide for authentication of the security document. The invention also relates to a security document obtained with this method, and to a method of authenticating such a security document.

Classes IPC  ?

• B42D 25/00 - Cartes ou structures de type feuille portant des informations caractérisées par leurs éléments d’identification ou de sécurité; Leur fabrication
• B42D 25/346 - Perforations
• B42D 25/435 - Marquage par enlèvement de matière par rayonnement électromagnétique, p.ex. laser
• B42D 25/44 - Marquage par enlèvement de matière en utilisant des moyens mécaniques, p.ex. la gravure
• B42D 25/445 - Marquage par enlèvement de matière en utilisant des moyens chimiques, p.ex. l’eau-forte

Abrégé

A security document (1) comprises a paper document substrate (11) and a security element (2) embedded in said document substrate (11). The security element comprises an element substrate (21) and a material (22) sensitive to laser light. The method comprises the step of directing laser light (41 ) onto the document substrate (11) so as to alter said material (22), so as to provide said security element (2) with a detectable marking (3).

Classes IPC  ?

• D21H 21/40 - Agents facilitant un test d'authenticité ou empêchant une modification frauduleuse, p.ex. pour papier de sûreté
• B41M 3/14 - Impression de papiers-valeurs
• B24D 15/00 - Outils à main ou autres dispositifs pour meuler, polir ou affûter, sans mouvement rotatif
• D21H 21/42 - Rubans ou bandes
• D21H 21/48 - Eléments adaptés à une vérification physique, p.ex. par irradiation
• B41M 5/24 - Enregistrement par ablation, p.ex. par brûlage de marques; Enregistrement par étincelle

Abrégé

The present invention relates to the use of nanocompounds as non deactivable security markers comprising a charge-transfer complex of at least two different size metal atomic quantum clusters (AQCs). These nanocompounds are luminescent, particularly fluorescent after external excitation. The invention also relates to security documents, articles or elements incorporating these markers as well as to a method and a system for detecting the same.

Classes IPC  ?

• C09K 11/58 - Substances luminescentes, p.ex. électroluminescentes, chimiluminescentes contenant des substances inorganiques luminescentes contenant du cuivre, de l'argent ou de l'or
• C09K 11/02 - Emploi de substances particulières comme liants, revêtements de particules ou milieux de suspension
• B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs

Abrégé

The present invention relates to an object comprising a region of its surface suitable for showing a plurality of images. Each of these images is observable from a different direction such that upon observing one of the images the other images stop being observable and do not interfere in the viewing of the observed image. The configuration which allows generating the region of surfaces suitable for showing the plurality of images allows for mass production by means of stamping or minting techniques and complicates the reproduction by unauthorized manufacturers. A method which allows obtaining the object having a region suitable for showing a plurality of images is also an object of the present invention.

Classes IPC  ?

• A44C 21/00 - Pièces de monnaie; Jetons; Pièces ou jetons à usage privé ou de jeu, ou similaires
• B21C 51/00 - Dispositifs de mesure, de calibrage, d'indication, de comptage ou de marquage, spécialement conçus pour être utilisés dans la production ou la manipulation des matériaux concernés par les sous-classes
• B23P 15/00 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe

Abrégé

The present invention relates to the use of nanosystems as non deactivable security markers comprising metal atomic quantum clusters (AQCs) of at least two different size distributions encapsulated in a cavity with an inner diameter less than or equal to approximately 10 nm. These nanosystems are luminescence, particularly fluorescence after external excitation. The invention also relates to security documents, articles or elements incorporating these markers as well as to a method and a system for detecting the same.

Classes IPC  ?

• G01N 33/58 - Analyse chimique de matériau biologique, p.ex. de sang ou d'urine; Test par des méthodes faisant intervenir la formation de liaisons biospécifiques par ligands; Test immunologique faisant intervenir des substances marquées
• B41M 3/14 - Impression de papiers-valeurs
• B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
• C09D 5/22 - Peintures lumineuses
• D21H 21/48 - Eléments adaptés à une vérification physique, p.ex. par irradiation
• G06K 19/14 - Supports d'enregistrement pour utilisation avec des machines et avec au moins une partie prévue pour supporter des marques numériques caractérisés par le genre de marque numérique, p.ex. forme, nature, code utilisant des marquages de différentes sortes sur le même support d'enregistrement, p.ex. un marquage étant lu optiquement et l'autre par des moyens magnétiques au moins une sorte de marquage étant utilisée pour l'authentification, p.ex. de cartes de crédit ou de cartes d'identité le marquage étant lu par irradiation
• G07D 7/12 - Lumière visible, rayonnement infrarouge ou ultraviolet
• B82Y 15/00 - Nanotechnologie pour l’interaction, la détection ou l'actionnement, p.ex. points quantiques comme marqueurs en dosages protéiques ou moteurs moléculaires

Abrégé

The present invention relates to the use of non deactivable security markers comprising the combination of at least two types of nanoparticles of materials presenting Raman effect, wherein said nanoparticles are in a dispersed state or is forming agglomerates of between 2 and 500 nanoparticles. The invention also relates to security documents, articles or elements incorporating these markers, as well as to a method and system for the detection thereof.

Classes IPC  ?

• B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
• G07D 7/12 - Lumière visible, rayonnement infrarouge ou ultraviolet

Abrégé

The present invention relates to the use of non-deactivatable security compositions comprising the combination of at least two types of particles of oxide materials, where said particles have a different size and/or morphology, and where the inorganic oxide materials have at least one transition metal or one lanthanide element, and radiofrequency wave absorption properties. The invention also relates to security articles, documents or elements incorporating these compositions, as well as to a method and to a system for detection thereof.

Classes IPC  ?

• C09D 7/12 - Autres adjuvants
• B41M 3/14 - Impression de papiers-valeurs
• B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
• G07D 7/06 - Vérification spécialement adaptée à la détermination de l’identité ou de l’authenticité de papiers de valeur ou pour discriminer ceux qui sont inacceptables, p.ex. qui ne correspondent pas à une monnaie à l'aide d'un rayonnement ondulatoire ou corpusculaire

Abrégé

The present invention relates to a new family of luminescent pigments consisting of a salt of two ruthenium(II) complex ions of opposite sign charges comprising N- chelating heterocyclic ligands and to their use in security applications to prevent counterfeiting. The invention also refers to ink compositions and to the security documents or secured goods comprising said luminescent pigments.

Classes IPC  ?

• C09K 11/06 - Substances luminescentes, p.ex. électroluminescentes, chimiluminescentes contenant des substances organiques luminescentes

Abrégé

The invention relates to security paper, to a security document produced from said paper and to the method for producing same, combining window thread security elements and high-contrast single-tone watermark technology. For this purpose, high-contrast single-tone or electro-type watermarks are inserted into the recesses created in order to cover the thread in the areas in which it is visible, which areas contain more fibres and, as such, form dark areas in the end paper.

Classes IPC  ?

• D21H 21/42 - Rubans ou bandes
• D21F 1/44 - Dispositifs pour filigraner

Abrégé

The invention relates to: a method for conditioning inorganic materials such as safety additives, the resulting conditioned material, safety paper having a composition containing said conditioned inorganic material and the use of the conditioned inorganic material for the production of safety paper.

Classes IPC  ?

• G07D 7/00 - Vérification spécialement adaptée à la détermination de l’identité ou de l’authenticité de papiers de valeur ou pour discriminer ceux qui sont inacceptables, p.ex. qui ne correspondent pas à une monnaie
• C09K 11/78 - Substances luminescentes, p.ex. électroluminescentes, chimiluminescentes contenant des substances inorganiques luminescentes contenant des métaux des terres rares contenant de l'oxygène
• B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs

Abrégé

Security paper or special paper with pigments incorporated into the body of the synthetic element during the manufacture thereof, whereby the properties of the pigment are imparted to the synthetic element and the pigments as well as the actual synthetic element itself are protected from attack by physical and chemical agents.

Classes IPC  ?

• B44F 1/12 - Valeurs ou billets de banque dans la mesure où le dessin ou la prévention de la contrefaçon sont importants
• D21H 21/44 - Eléments de sécurité latents, c. à d. pouvant être détectés ou devenant apparents uniquement par utilisation de méthodes ou de dispositifs particuliers de vérification ou d'altération
• C08J 3/20 - Formation de mélanges de polymères avec des additifs, p.ex. coloration

Abrégé

A security strip (1) consisting of sectors in which the background is non-continuous so that it is more difficult to duplicate by optical means than a continuous background, thereby making the strip harder to counterfeit. The non-continuous background consists of a dot pattern (2) printed using conventional printing techniques on an area (3) in which the repeated absence of dots defines a symbol (4), wherein the dots (2) of the pattern are geometrically and dimensionally distributed in such a way that they cannot be seen by the naked eye because the gap (3) between the dots cannot be discerned and the background appears to be continuous.

Classes IPC  ?

• B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
• B41M 3/14 - Impression de papiers-valeurs

Abrégé

The invention relates to special or security paper comprising internal touch recognition elements, which is suitable for use as legal tender or for any other type of document requiring means for facilitating touch recognition or preventing counterfeiting. The invention comprises a sheet of paper (1) containing inserted expanding agents (2) which may be centred in relation to the thickness of the sheet of paper or positioned close to the upper face and/or lower face of the sheet (1), such as to form a figure or legend. According to the invention, pressure and heat are applied to the aforementioned expanding agents, either as the paper is being produced or during subsequent processes, thereby causing the sheet (1) to expand and forming a curved, continuous relief (3) on the surface of the document.

Classes IPC  ?

• D21H 27/40 - Papier particulier non prévu ailleurs, p.ex. obtenu par des procédés multi-étapes à plusieurs jets au moins une des feuilles n'étant pas plane, p.ex. crêpée
• B41M 3/16 - Impression en Braille

Abrégé

The invention relates to a security strip (1) and security paper (8) which are used to produce security documents, such as legal tender notes (9), cheques or identification documents, comprising a cellulose support band (2) which is fully embedded in a substrate (3) of paper pulp. Both the substrate (3) and the support band (2) are made from vegetable fibres (4) and, as such, a series of physicochemical bonds are made between the fibres (4) of both elements, such that the support (2) band is perfectly integrated in the paper pulp. Occasionally, the cellulose support band (2) comprises a series of security elements, such as pigments (5), synthetic elements (6) and/or security fibres (7) of the type normally used for said purpose.

Classes IPC  ?

• B42D 15/00 - Cartes ou imprimés d'un format ou d'un type particulier non prévu ailleurs
• D21H 21/42 - Rubans ou bandes
• D21H 21/48 - Eléments adaptés à une vérification physique, p.ex. par irradiation