4-bora-3a,4a-diaza-s-indacene Polymer Security Element
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Solution Overview
Problem
Current methods for securing and authenticating documents and high-value products are complex, costly, and time-consuming, and existing security solutions often require multiple components and sophisticated equipment for verification, lacking simplicity and ease of implementation while providing adequate security.
Innovation Solution
Incorporation of 4-bora-3a,4a-diaza-s-indacene fluorescent compounds into polymer matrices to create a single securing element that can be detected across three levels of security, using their unique absorption and emission properties to authenticate documents and products without altering the polymer's performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple security elements and components are used to provide high-level security, then security reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple security functions (fluorescence, phosphorescence, absorption, emission) into a single polymer matrix containing multiple compounds, eliminating the need for separate security layers and components while maintaining high security reliability
Solution Approach 2:
The polymer matrix serves multiple security functions simultaneously - it provides fluorescence, phosphorescence, absorption, and emission properties all in one element, making it a universal security solution that replaces multiple specialized components
2Reliability
If multiple security layers and components are assembled and perforated, then security reliability is improved, but manufacturing time and cost increase
Solution Approach 1:
Multiple security functions are merged into a single polymer matrix that can be applied in one step, eliminating the need for assembling and perforating multiple separate layers, thus dramatically improving manufacturing efficiency
Solution Approach 2:
The security compounds are pre-incorporated into the polymer matrix during manufacturing, so that when the matrix is applied to the document, all security functions are already integrated and ready for use, eliminating post-assembly steps
3Measurement precision
If sophisticated detection equipment is used for level 3 security elements, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The security system is segmented into multiple detection levels - simple visual inspection for basic verification, UV/visible light for fluorescence/phosphorescence detection, and sophisticated equipment only when needed for complex analysis, allowing users to choose the appropriate level
Solution Approach 2:
The compounds exhibit distinct color changes and optical properties (fluorescence, phosphorescence) that can be detected by simple visual inspection or basic UV lamps, eliminating the need for sophisticated equipment for routine verification
4Ease of manufacture
If a single security element is used to simplify implementation, then ease of manufacture is improved, but security reliability may deteriorate
Solution Approach 1:
The polymer matrix is a composite material containing multiple compounds with different security properties (fluorescent, phosphorescent, absorption, emission), providing high security reliability while maintaining ease of manufacture as a single integrated element
Solution Approach 2:
The single polymer matrix performs multiple security functions simultaneously, providing high security reliability without requiring multiple separate components, thus maintaining ease of manufacture and implementation
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 provides a simple, stable, and cost-effective means to authenticate products and documents across multiple security levels, ensuring high security with a single element that can be easily integrated into the manufacturing process or applied post-manufacture, using LED or UV light stimulation for activation/deactivation effects and waveguide properties for level 1 and 2 security, and spectrofluorometric detection for level 3 security.
Implementation Method 1
Thanks to the use of one or more compounds of the 4-bora-3a,4a-diaza-s-indacene family incorporated in a polymer... a securing element that can be detected on all of the levels is obtained
Implementation Method 2
Activation/deactivation effect (on/off): This effect corresponds to the viewing of a change in colour following a stimulation of the fluorescence of the fluorescent dyes in particular by a light source of the LED or UV type
Implementation Method 3
Waveguide effect: The presence of grooves in the layer or layer set, generates a discontinuity in the refractive index that stimulates the fluorescence of the secured layer
Data Source
AI summary
The invention relates to the use of one or more compounds of the 4-bora-3a,4a-diaza-s-indacene family for the preparation of a security element for a product, in particular a document, said security element comprising a polymer and said compound(s) being incorporated in said polymer, and to a method for ensuring the security of a product, in particular that of a document.