Ring-peel-seal liner for packaging containers
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Solution Overview
Problem
Conventional packaging containers require an additional sealing liner after opening, increasing complexity and material consumption to achieve a satisfactory sealing effect.
Innovation Solution
A ring-peel-seal liner with a metal sealing layer, adhesive layer, and auxiliary tear lines, allowing for electromagnetic induction sealing and easy removal without completely destroying the liner, thus eliminating the need for an additional sealing liner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional sealing liner is added to enhance sealing effect after opening, then sealing reliability is improved, but device complexity and material consumption increase
Solution Approach 1:
The patent merges the sealing liner function with the lid structure by integrating a sealing ring directly onto the lid. This eliminates the need for separate additional sealing liners, reducing production complexity while maintaining reliable sealing through the integrated sealing ring that conforms to the container opening.
Solution Approach 2:
The lid is designed with multi-functionality by incorporating the sealing ring as an integral component. The lid simultaneously serves as the closure structure and the sealing element, eliminating the need for separate sealing liners and reducing overall device complexity while maintaining sealing reliability.
2Reliability
If an additional sealing liner is added to enhance sealing effect after opening, then sealing reliability is improved, but material consumption increases
Solution Approach 1:
By merging the sealing function into the lid structure through an integrated sealing ring, the patent eliminates the need for additional sealing liner materials. This reduces material consumption while maintaining reliable sealing through the single integrated component.
3Reliability
If a conventional sealing film is used, then sealing effect is achieved, but the sealing effect deteriorates after the sealing film is destructed
Solution Approach 1:
The sealing structure is segmented into a reusable lid with an integrated sealing ring and a removable central region. When opened, only the central region is removed while the sealing ring remains on the lid, allowing the sealing function to be maintained for subsequent closures. This extends the duration of effective sealing beyond the initial single-use film.
Solution Approach 2:
The patent applies discarding and recovering by allowing the central region of the sealing structure to be removed (discarded) while the sealing ring is retained (recovered) on the lid. This enables the sealing function to be reused for multiple closures, extending the duration of effective sealing compared to conventional single-use films.
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 ring-peel-seal liner provides a sealing effect similar to the original sealing film after opening, reducing material consumption and production complexity while maintaining structural integrity and ease of use.
Implementation Method 1
an adhesive layer, adhered on one surface of the metal sealing layer
Implementation Method 2
allowing for electromagnetic induction sealing
Data Source
AI summary
A ring-peel-seal liner is revealed, the ring-peel-seal liner includes a metal sealing layer and an adhesive layer. The metal sealing layer has a first annular tear line, and is defined into an annular region and a central region by the first annular tear line, wherein the annular region encircles the central region. The adhesive layer is adhered on one surface of the metal sealing layer. With the ring-peel-seal liner described above, the issue of needing an additional liner for enhancing a sealing effect after opening a conventional packaging container is resolved.