Security element for secure documents and secure document comprising such a security element
By designing a multi-layered security element, utilizing a plasmonic ink layer and an embossed microstructure layer, the optical effects of the security element are expanded and identification is simplified, solving the problems of limited optical effects and complex manufacturing in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- OBERTHUR FIDUCIAIRE SAS
- Filing Date
- 2024-12-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing security elements have limited optical performance, are complex to manufacture, and it is difficult to improve their design feasibility and ease of identification without increasing complexity.
It employs a multi-layer structure, including a translucent color-developing ink layer, a transparent or translucent substrate layer, an embossed microstructure layer, and a layer containing plasmon particles. The color change under variable reflected and transmitted light is achieved through the plasmon ink layer, and the optical effect is enhanced by combining an opaque ink layer and a protective layer.
It broadens the range of colors available for optical effects, improves the ease and security of identification, and simplifies the manufacturing process.
Smart Images
Figure CN122422154A_ABST
Abstract
Citation Information
Patent Citations
Valuable document and method for producing a valuable document
EP4091830A1
SECURITY ELEMENT FOR A VALUABLE DOCUMENT, ITS MANUFACTURING PROCESS, AND THE VALUABLE DOCUMENT THAT CONTAINS IT
FR3087386A1