The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2023
Filed:
May. 18, 2020
Sicpa Holding SA, Prilly, CH;
Thibaut Martini, Nyon, CH;
Gebhard Ritter, Lausanne, CH;
Jean Garnier, Corcelles-le-Jorat, CH;
Riccardo Ruggerone, Echallens, CH;
Patrick Veya, Aclens, CH;
SICPA HOLDING SA, Prilly, CH;
Abstract
The present invention relates to the technical field of security documents comprising a security feature, such as a windowed security thread, a security foil, a security patch, a hologram or an ink printed security feature, and a protective coating, and methods of manufacturing of said security documents. The security feature has a security feature thickness tof at least about 5 μm (micrometers) and a security feature surface facing away from the substrate consisting of a first region adjacent to the edges of the security feature and a second region non-adjacent to the edges of the security feature. The protective coating covers the security feature surface facing away from the substrate, a first substrate surface adjacent to the edges of the security feature, and a second substrate surface, which is different from the substrate surface covered by the security feature and the first substrate surface. The protective coating covering the security feature surface facing away from the substrate and the first substrate surface is transparent, the protective coating covering the first region has a thickness t, the protective coating covering the second region has a thickness t, the protective coating covering the first substrate surface has a thickness t, and the protective coating covering the second substrate surface has a thickness t. The thickness tis larger than the thickness t, which is larger than the thickness t; the thickness tis larger than the thickness t; and either the thickness tis larger than the thickness t, which is larger than or equal to the thickness t; or the thickness tis equal to the thickness t, which is larger than the thickness t. The variable protective coating thickness on the surface of the security document provides the inventive security document with an increased resistance against physical and chemical attacks from the environment, while maintaining the mechanical resistance properties required for such security documents.