Security Element Carrier Tape Application Device
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Solution Overview
Problem
Current methods for applying security elements to value documents are time and cost-intensive, and there is a need for a more efficient process to securely attach security elements to document substrates while minimizing material consumption.
Innovation Solution
A device comprising a value-document substrate transport system and a security-element transport system, where the security elements are applied with their adhesive surface to the document substrate web, utilizing a roll-to-roll process with conveyor rollers, application rollers, and a heated applicator wedge to ensure secure attachment and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional methods are used to apply security elements to document substrates, then the security elements can be securely attached, but the process is time and cost-intensive with higher material consumption
Solution Approach 1:
The patent implements a continuous roll-to-roll application process where document substrates and security element carrier tapes are continuously fed through the application device. The conveyor rollers and application rollers maintain continuous motion, enabling uninterrupted application of security elements at high speeds, thereby significantly reducing processing time compared to batch processing methods
Solution Approach 2:
The patent replaces traditional manual or semi-automatic application mechanisms with an automated roller-based transport and application system. The conveyor rollers and application rollers create a mechanized continuous process that eliminates time-consuming manual operations, enabling high-speed automated application of security elements
2Loss of substance
If traditional application devices are used, then security elements can be applied, but material consumption for the carrier tape is high
Solution Approach 1:
The patent employs a thin-film carrier tape structure that allows security elements to be mounted in a continuous array format. This thin-film approach minimizes the amount of carrier material required while maintaining the functionality of securing and transporting multiple security elements, thereby reducing overall material consumption compared to traditional rigid or thick carrier systems
Solution Approach 2:
The patent segments the carrier tape into discrete mounting positions for individual security elements, allowing precise placement and minimal waste. The segmented structure enables efficient use of carrier tape material by only using material where security elements are actually mounted, rather than requiring excess material for handling or alignment
3Productivity
If security elements are arranged closer on the carrier tape, then more elements can be applied, but safe transfer to document substrates becomes more difficult
Solution Approach 1:
The patent introduces application rollers as an intermediary mechanism between the carrier tape and document substrates. These rollers gently grasp and transfer security elements from the closely-spaced carrier tape positions to the document substrates, ensuring reliable transfer even when elements are densely arranged, thereby maintaining both high throughput and transfer safety
Solution Approach 2:
The patent utilizes controlled pressure and temperature parameters during the application process. The application rollers apply controlled pressure to secure elements during transfer, and heated rollers provide thermal energy to activate adhesives, ensuring reliable attachment even when security elements are closely spaced on the carrier tape, thus maintaining transfer safety at high speeds
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
Enables high-speed, secure application of security elements with reduced material consumption, improving the efficiency and cost-effectiveness of the process while maintaining the integrity of the security features.
Implementation Method 1
each security element has adhesive properties on its second main surface
Implementation Method 2
the application device has at least one heated application roller or at least one heated calender roller
Data Source
Figure 1a~1b
Figure 2~4
Figure 5~6
AI summary
The invention relates to a security element carrier tape with a plurality of security elements, wherein the security element carrier tape has a first and a second main surface (HF1T, HF2T) facing each other, each security element has a first and a second main surface (HF1S, HF2S) facing each other, each security element is arranged with its first main surface (HF1S) on the first main surface (HF1T) of the security element carrier tape, the second main surface (HF2S) of each security element has adhesive properties for application to the document substrate web, wherein the security element carrier tape has adhesive properties on its first main surface (HF1S), the security element carrier tape has discrete areas (308a) on its first main surface (HF1S) which have the adhesive properties, such that the adhesive properties are only present in the areas,which are covered by the security elements, and the discrete areas (308a) are smaller than the first principal area (HF1S) of each security element.