RFID Tag Isolation in Container Closure Assembly
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Solution Overview
Problem
Existing container closure assemblies face inefficiencies and increased costs due to complex manufacturing processes, tampering risks, and compatibility issues with RFID tags, especially when metallic liners are used, which can render RFID tags inoperative or reduce their operational radius.
Innovation Solution
Incorporating a radio frequency identification (RFID) tag into the closure assembly with a fold-over or fold-under isolation liner that maintains electromagnetic separation from the metallic foil, ensuring the RFID tag remains functional and providing a tamper-evident seal, while allowing for efficient manufacturing and reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metallic liner is used to protect against air and moisture migration, then protection against air and moisture is improved, but RFID tag functionality deteriorates because the metallic liner renders the RFID tag inoperative or reduces its operational radius
Solution Approach 1:
The closure assembly is divided into separate functional components: a metallic liner component for moisture protection and an RFID tag component for tracking. These components are positioned and configured independently, allowing the metallic liner to provide barrier protection while the RFID tag maintains its electromagnetic functionality through proper spacing and orientation.
Solution Approach 2:
The patent introduces an intermediary configuration between the metallic liner and RFID tag, where the RFID tag is positioned on the closure assembly in a manner that mediates the interaction between the metallic material and electromagnetic signals. This intermediary positioning allows both the metallic liner's barrier function and the RFID tag's signal transmission to coexist effectively.
2Adaptability or versatility
If multiple specialty manufacturers are used to fabricate closure components separately, then manufacturing flexibility and specialization are improved, but manufacturing complexity and cost increase due to numerous assembly steps and transportation
Solution Approach 1:
The patent combines multiple closure components (closure body, liner, and RFID tag) into a single integrated closure assembly that can be manufactured as one unit. This merging eliminates the need for separate assembly steps and transportation of individual components, reducing complexity while maintaining the specialized functions of each component.
Solution Approach 2:
The closure assembly is designed as a multi-functional unit that simultaneously provides sealing protection, RFID tracking capability, and structural closure functions. This universal design allows a single manufacturer to produce a complete assembly that replaces multiple specialized components, simplifying the supply chain while maintaining adaptability.
3Object-affected harmful factors
If tamper-proof seals are used to prevent unauthorized access, then security against tampering is improved, but reliability deteriorates because tampering agents can replace or recreate seals expertly making deception likely undiscovered
Solution Approach 1:
The RFID tag provides continuous feedback about the closure assembly's integrity and location throughout the supply chain. This electronic tracking system offers real-time verification that cannot be easily replicated or deceived, providing reliable feedback on whether the container has been accessed or tampered with, unlike physical seals that can be expertly recreated.
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 ensures the RFID tag remains fully functional throughout the container's lifecycle, enhances tamper protection, and reduces manufacturing complexities, providing a cost-effective and efficient tracking system for container contents.
Implementation Method 1
Radio frequency identification ('RFID') tags may be utilized to track containers and provide information concerning the products carried therein
Implementation Method 2
Incorporating a radio frequency identification (RFID) tag into the closure assembly with a fold-over or fold-under isolation liner that maintains electromagnetic separation from the metallic foil
Data Source
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Figure 5~6
AI summary
A container closure assembly (14) includes a closure (15), an inner seal (21), and a radio frequency identification tag (25). The inner seal includes a first surface for engaging a container sealing surface (20), and a second, opposed surface for engaging one of a backing liner, a facing liner, an induction seal liner, and a glued-in closure liner. The radio frequency identification tag includes a microprocessor (27) electrically coupleable with an antenna for receiving, storing, and transmitting digitized information. The inner seal can minimize migration of fluids between a container interior volume and an exterior of a container when the inner seal is engaged with a container sealing surface. The radio frequency identification tag can be included in the closure assembly within a container interior volume or external to a container, or can be incorporated into the inner seal, without the closure assembly electromagnetically interfering with the receiving, storing, or transmitting of the digitized information.