Sealing Disc Perforated Handle Induction Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sealing disks for containers often require protruding handles or folds that are prone to damage and complicate the closing process, making them expensive and difficult to use effectively.
Innovation Solution
A sealing disk with a perforation line on the reinforcing layer, allowing the user to create a handle by piercing and pulling off the edge, which is self-explanatory and avoids the need for protruding tabs or folds, ensuring a clean and controlled opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a protruding handle or fold is added to the sealing disc for easy opening, then ease of operation is improved, but device complexity and susceptibility to damage increase
Solution Approach 1:
The sealing disc is segmented into multiple functional layers (sealing layer, induction layer, reinforcing layer) with the opening aid formed by perforations in the reinforcing layer. This segmentation allows each layer to perform its specific function while the perforated pattern creates the handle function without requiring protruding structures.
Solution Approach 2:
Instead of creating protruding handles that extend outward from the sealing disc surface, the invention uses a two-dimensional perforated pattern within the plane of the reinforcing layer. The perforations create a grid pattern that forms handles when the sealing disc is pulled, transforming the opening aid from a three-dimensional protrusion to a two-dimensional feature.
2Ease of operation
If a protruding handle is added to the sealing disc, then ease of operation is improved, but reliability decreases due to damage risk
Solution Approach 1:
The perforations are pre-formed in the reinforcing layer during manufacturing, creating predetermined weak points that will form handles when needed. This preliminary action ensures that when the user pulls the sealing disc, the handles form at the exact locations where perforations exist, avoiding random tearing and ensuring consistent, reliable behavior.
Solution Approach 2:
The reinforcing layer with its perforated pattern serves as a cushioning structure that controls the opening process. The perforations act as predetermined failure points that distribute stress evenly, preventing sudden unpredictable failure and providing a controlled, reliable opening mechanism that protects against damage.
3Ease of operation
If outwardly projecting tabs are used for opening, then ease of operation is improved, but they interfere with the closing process and screw cap installation
Solution Approach 1:
The opening aid is transformed from outwardly projecting tabs that extend beyond the sealing disc boundary to a two-dimensional perforated pattern within the sealing disc plane. This dimensional change eliminates interference with screw cap installation while maintaining the handle function, as the perforations only become visible and functional when the screw cap is removed and the user pulls the sealing disc.
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 user-friendly and damage-resistant way to open the container without leaving residues, maintaining a secure seal and optimizing the container mouth for access, with precise control over the opening size and behavior.
Implementation Method 1
the sealing disc has a metal foil. A very thin plastic film is applied to the underside of the metal foil... If eddy currents are induced in the metal foil from above, it is heated accordingly, as is the plastic foil underneath it, which melts as a result
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a sealing disc (10) for sealing openings of containers, comprising a film (20) for the inductive introduction of heat into the sealing disc (10). The sealing disc (10) has an edge region (11). On the side of the film (20) intended to face the inside of the container (5), a sealing layer (25) is provided in order to provide a tight seal at the edge region (11) of the sealing disc (10) on the opening of the container (5). There are one or more layers (30) on the side of the film (20) facing away from the sealing layer (25). In addition, a handle (35) is configured as part of the sealing disc (10) and is used to open the opening of the container (5) that is sealed with the sealing disc (10). The layer or layers (30) on the side facing away from the sealing layer (25) are provided with tear lines (36) to form an outline of the handle (35). The tear lines (36) extend into the edge region (11) of the sealing disc (10).