Security Element With Embossed Structure And Parallel Lines
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Solution Overview
Problem
Current security elements for valuable and security documents, such as banknotes, require complex production processes and specialized knowledge to create multicolored hidden pictures with high contrast, making them labor-intensive and expensive to produce.
Innovation Solution
A security element comprising a background layer with sequences of parallel lines of different colors and an embossed structure with geometric shapes shifted relative to the background lines, allowing for the creation of multicolored hidden pictures with clear color division and simple, cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex production processes with multiple embossed lines and rasters are used to create multicolored hidden pictures, then the security element achieves high contrast and difficulty to counterfeit, but the production becomes labor-intensive and expensive
Solution Approach 1:
The background layer is segmented into multiple color zones (first color zone, second color zone, third color zone) with parallel lines of different colors. The embossed structure is segmented into multiple parts (first part, second part, third part), each corresponding to different color zones. This segmentation allows each part to be embossed and colored independently, simplifying the overall production process while maintaining security properties.
Solution Approach 2:
Different parts of the embossed structure have different local qualities - different heights, different color applications, and different geometric shapes. The first part has first color, the second part has second color, and the third part has third color. This local differentiation creates the multicolored hidden picture effect without requiring complex global processing.
2Ease of operation
If multiple embossed lines with triangular cross-section profiles are used to create security patterns, then the security element provides tactile and visual identification, but the production process becomes more complex and costly
Solution Approach 1:
The invention uses a simplified embossed structure that copies the essential security function of complex multi-line patterns. Instead of creating multiple separate embossed lines with triangular profiles, the invention uses a single embossed structure with varying heights and geometric shapes that produces the same security effect through color differentiation and tactile variation.
Solution Approach 2:
The embossed structure uses variable parameters - different heights (first height, second height, third height), different geometric shapes, and different color applications - to create visual and tactile identification. This parameter variation achieves the security function with a simpler single-structure approach rather than multiple complex lines.
3Manufacturing precision
If rasters of different colours are created on a substrate with appropriate embossing to reveal hidden pictures, then high contrast is achieved, but the manufacture process requires high specialised knowledge and expensive equipment
Solution Approach 1:
The background layer with multiple color zones is prepared in advance before the embossing process. The parallel lines of different colors are printed first, creating a pre-prepared color matrix. Then the embossed structure is applied on top, which simply needs to follow the pre-established color zones. This preliminary preparation separates the complex coloring step from the embossing step, reducing the need for specialized knowledge and expensive equipment during the embossing process.
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 enables the production of multicolored hidden pictures with clear color division, making them difficult to counterfeit while being easy to verify, and simplifies the production process, reducing costs and complexity.
Implementation Method 1
one obtains various colour effects for individual parts of the picture constituting the security element
Implementation Method 2
some colourful effects are produced due to the moiré effect. This effect is an interference visual phenomenon resulting from superimposing (crossing) at least two regular raster grids of irregular lines
Data Source
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AI summary
The invention relates to a security element with a hidden picture, a security document consisting of the security element, and a method for producing such security element, wherein the security element consists of a background layer in a form of sequences of first parallel lines, and an embossed structure having such parameters that one obtains different colouristic effects for individual parts of the picture constituting the security element.