Security Card Overlaying Inkjet Information on Visible Element
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Solution Overview
Problem
Existing security documents, such as ID cards, are vulnerable to forgery since individualizing information can be removed or exchanged, allowing counterfeit versions to be created, and existing authentication methods lack sufficient optical verification of authenticity.
Innovation Solution
The security element is partially or fully overlaid with two-dimensional word and/or image information, which is printed using inkjet technology, incorporating special optical effects and adhesion-promoting treatments, ensuring the security element is visibly intact and difficult to replicate if altered, and a clear lacquer layer provides additional protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the security element is overlaid with two-dimensional information, then the security against forgery is improved, but the complexity of the card structure increases
Solution Approach 1:
The patent combines the security element and two-dimensional information into a single integrated card structure. The information layer is merged with the security element layer, creating a unified design where both components work together to provide authentication. This merging approach increases security while managing structural complexity through integrated design rather than separate components.
Solution Approach 2:
The patent transitions from traditional two-dimensional card designs to a multi-layered three-dimensional structure. By adding the security element layer and information layer in different dimensions, the system achieves enhanced security without proportionally increasing visual complexity. The layered arrangement allows each element to serve its specific function while contributing to overall security.
2Manufacturing precision
If the information is printed using inkjet technology with special optical effects, then the manufacturing precision and security are improved, but the manufacturing cost increases
Solution Approach 1:
The patent replaces traditional mechanical printing methods with inkjet technology, which offers superior precision and security features. The inkjet printing process deposits information with high accuracy directly onto the card surface, eliminating the need for complex mechanical alignment systems. This substitution increases manufacturing precision while the automated nature of inkjet printing actually reduces overall manufacturing costs compared to traditional methods.
Solution Approach 2:
The patent utilizes special optical effects by changing the physical-chemical parameters of the ink and card surface interaction. By adjusting ink composition, curing conditions, and surface treatment parameters, the system achieves high precision information attachment with enhanced security features. These parameter optimizations allow cost-effective production while maintaining high manufacturing precision and security against forgery.
3Reliability
If the security element is made visible and intact through overlaying, then the optical authentication is improved, but the vulnerability to information removal increases
Solution Approach 1:
The patent applies preliminary anti-action by designing the card structure so that removing the two-dimensional information would damage the security element. The layered arrangement and adhesion mechanisms are configured such that extraction of information requires damaging the underlying security element. This preliminary design prevents the harmful effect of information removal while maintaining optical authentication capabilities.
Solution Approach 2:
The patent introduces an intermediary adhesion layer between the information and the security element. This intermediary layer serves as a mediator that firmly attaches the information to the card while protecting the security element from damage during information removal attempts. The intermediary structure enables optical authentication to remain effective while preventing the vulnerability exploited by information removal.
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
This approach enhances optical authentication and significantly increases security against forgery by making it obvious when the information is tampered with, while the combination of security elements and overlayed information creates a high level of protection against counterfeiting.
Implementation Method 1
the color is applied by inkjet printing, in particular in full color, with UV-curing inks
Implementation Method 2
the information printed on the card body is coated with a layer of clear lacquer
Implementation Method 3
the surface of the card body or of the security element is processed with the ink forming the information for better adhesion
Data Source
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AI summary
A security document, in particular, a card, for identification, preferably ID cards (for example, a personal identity card), comprising a card body, a security element, applied to the card body and planar information preferably in words and/or images, characterised in that the information is at least partly overlaid over or covered by the security element, wherein the security element is completely or at least partly visible.