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1. WO2020193992 - SECURITY DEVICE AND METHOD OF MANUFACTURE THEREOF

Publication Number WO/2020/193992
Publication Date 01.10.2020
International Application No. PCT/GB2020/050836
International Filing Date 27.03.2020
IPC
B42D 25/342 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
342Moiré effects
B42D 25/373 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
36comprising special materials
373Metallic materials
B42D 25/387 2014.01
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
36comprising special materials
378Special inks
387absorbing or reflecting ultra-violet light
CPC
B42D 25/342
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
342Moiré effects
B42D 25/373
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
36comprising special materials
373Metallic materials
B42D 25/387
BPERFORMING OPERATIONS; TRANSPORTING
42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
DBOOKS; 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
25Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
30Identification or security features, e.g. for preventing forgery
36comprising special materials
378Special inks
387absorbing or reflecting ultra-violet light
Applicants
  • DE LA RUE INTERNATIONAL LIMITED [GB]/[GB]
Inventors
  • GODFREY, John
Agents
  • GILL JENNINGS & EVERY LLP
Priority Data
1904333.028.03.2019GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SECURITY DEVICE AND METHOD OF MANUFACTURE THEREOF
(FR) DISPOSITIF DE SÉCURITÉ ET SON PROCÉDÉ DE FABRICATION
Abstract
(EN)
A security device is provided. The security device comprises a decorative layer comprising a luminescent material arranged in a first region, wherein the luminescent material luminesces in response to irradiation at least one excitation wavelength such that the first region exhibits a luminescent visible colour when illuminated by said at least one excitation wavelength; an array of viewing elements; and, a masking layer comprising masking material positioned between the decorative layer and the array of viewing elements, the masking layer arranged as an array of pattern elements at least partially overlapping with said first region, and comprising first pattern elements defined by the presence of the masking material, and second pattern elements defined by the absence of the masking material such that the decorative layer is visible through the second pattern elements, wherein; the masking material is non-luminescing in response to the at least one excitation wavelength and is such that, when the security device is illuminated in the absence of the at least one excitation wavelength, at least where the array of pattern elements overlaps with the first region the first and second pattern elements have substantially the same visual appearance, and when the security device is illuminated by said at least one excitation wavelength, where the array of pattern elements overlaps with the first region, the second pattern elements exhibit the luminescent visible colour, and the first pattern elements exhibit a visual appearance that is different to the luminescent visible colour; and wherein, the array of pattern elements cooperates with the array of viewing elements such that when the security device is illuminated with the at least one excitation wavelength, the security device exhibits an optically variable effect. A method of manufacturing a security device, and a security arrangement, are also disclosed.
(FR)
La présente invention concerne un dispositif de sécurité. Le dispositif de sécurité comprend une couche décorative comprenant un matériau luminescent disposé dans une première région, le matériau luminescent étant luminescent en réponse à l'irradiation d'au moins une longueur d'onde d'excitation de telle sorte que la première région présente une couleur visible luminescente lorsqu'elle est éclairée par ladite ou lesdites longueurs d'onde d'excitation ; un réseau d'éléments de visualisation ; et une couche de masquage comprenant un matériau de masquage positionné entre la couche décorative et le réseau d'éléments de visualisation, la couche de masquage étant agencée en tant que réseau d'éléments de motif chevauchant au moins partiellement ladite première région, et comprenant des premiers éléments de motif délimités par la présence du matériau de masquage, et des seconds éléments de motif délimités par l'absence du matériau de masquage de telle sorte que la couche décorative est visible à travers les seconds éléments de motif ; le matériau de masquage est non luminescent en réponse à la ou aux longueurs d'onde d'excitation et est tel que, lorsque le dispositif de sécurité est éclairé en l'absence de la ou des longueurs d'onde d'excitation, au moins là où le réseau d'éléments de motif chevauche la première région, les premiers et seconds éléments de motif ayant sensiblement le même aspect visuel, et lorsque le dispositif de sécurité est éclairé par ladite ou lesdites longueurs d'onde d'excitation, le réseau d'éléments de motif chevauche la première région, les seconds éléments de motif présentent la couleur visible luminescente, et les premiers éléments de motif présentent un aspect visuel qui est différent de la couleur visible luminescente ; et le réseau d'éléments de motif coopérant avec le réseau d'éléments de visualisation de telle sorte que lorsque le dispositif de sécurité est éclairé avec la ou les longueurs d'onde d'excitation, le dispositif de sécurité présente un effet optiquement variable. L'invention concerne également un procédé de fabrication d'un dispositif de sécurité, et un agencement de sécurité.
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