Valuable Document Internal Metallized Embossed Security
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Solution Overview
Problem
Current secure documents face challenges in balancing security against forgery with ecological sustainability, as they often require high energy consumption, use of rare materials, and have external security elements that are prone to manipulation and wear.
Innovation Solution
A document of value with internal metallized embossed structures and machine-readable security elements, protected by transparent films, which eliminates the need for external printing and security features, reducing energy use and material consumption while enhancing security against forgery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external printing and security features are used in conventional documents, then visual appearance and security features are achieved, but the document is prone to manipulation, wear, and requires high energy consumption
Solution Approach 1:
The patent inverts the conventional approach by moving security features from the external surface to the internal structure. The metallized embossed structures are embedded within the transparent film rather than printed on the surface, making them inaccessible to external manipulation while maintaining their visual and security functions.
Solution Approach 2:
The security features are nested within the transparent film structure. The metallized embossed structures are embedded inside the film, creating a layered configuration where the security elements are protected by the film itself, similar to nested dolls where inner elements are protected by outer layers.
2Shape
If conventional printing processes are used, then visual appearance is achieved, but energy consumption and material usage increase
Solution Approach 1:
The patent replaces the chemical printing process with a physical embossing and vapor deposition process. Instead of using pigments and printing inks that require drying and curing energy, the security features are created through mechanical embossing followed by vapor deposition of metallized layers, significantly reducing energy consumption.
Solution Approach 2:
The patent changes the fundamental parameter of how visual appearance is created - from chemical pigment deposition to physical light interaction with metallized embossed structures. This parameter change eliminates the need for organic solvents and high-temperature drying processes inherent in conventional printing.
3Reliability
If external security elements are used, then security features are visible, but they are exposed to chemical and physical stress
Solution Approach 1:
The patent inverts the position of security features from external to internal. By embedding the metallized embossed structures within the transparent film, they are protected from the chemical and physical stress that affects surface elements, while still maintaining their visibility and security functions.
Solution Approach 2:
The transparent film acts as a protective shell that encloses and protects the metallized embossed structures. This thin film barrier shields the security features from environmental degradation, chemical exposure, and physical wear, significantly extending their durability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution increases security against forgery and ecological sustainability by protecting internal security features from external stress, reducing material usage, and extending the document's lifespan, while allowing for efficient production and recycling.
Implementation Method 1
a first, metallized embossed structure which is arranged on the inside of the first transparent film... the representation visible from the front is created by a first, metallized embossed structure
Implementation Method 2
A complete visual appearance, including all optical security features, is created in a single embossing process followed by vapor deposition of the front and back
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5B
AI summary
A security document, such as a banknote, check, credit or other payment card, identification card, or the like, which has a front and a back. The security document, viewed from the front, displays a representation recognizable to the naked eye and has specific dimensions (L, W) in this view. The security document (1) comprises a substrate body (2), which, viewed from the front, has the specified dimensions (L, W) and is connected to a first transparent film (18), which has an inner and an outer surface, such that the substrate body (2) rests against the inner surface of the first transparent film (18), so that the substrate body (2) faces the back and the outer surface of the first transparent film (18) faces the front.The first transparent film (18) also has the specified dimensions (L, W) in plan view, and the representation visible from the front is created by a first metallized embossed structure (20) located on the inside of the first transparent film (18). Furthermore, a first machine-readable security element is located on the inside of the first transparent film (18).