Packaging Seal Structure for Moisture-Resistant Tamper Evidence
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Solution Overview
Problem
Existing containers for solid products, particularly oral products like tobacco, face issues with moisture ingress that can degrade the product, and there is a need for effective sealing to prevent tampering while maintaining product integrity.
Innovation Solution
A sealing member, such as a tearable tape, is adhered to the container periphery, forming a joint with the container body and cover, which limits moisture transfer to less than 2 mg/day and includes a pull tab for easy opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a sealing member is applied to the container joint, then moisture transfer is reduced to less than 2 mg/day, but the device complexity increases due to additional components
Solution Approach 1:
The sealing member is divided into distinct functional segments: a first portion that adheres to the container body, a second portion that adheres to the container cover, and an optional third portion that bridges between them. This segmentation allows each portion to be optimized for its specific function while collectively achieving the moisture barrier goal.
Solution Approach 2:
The sealing member acts as an intermediary element positioned at the container joint to prevent moisture ingress. By introducing this intermediate sealing component, the patent resolves the contradiction between maintaining simple container construction and achieving effective moisture protection.
2Reliability
If a tearable tape sealing member is used, then product integrity is maintained through tampering prevention, but the ease of operation is reduced due to requiring perforation or tearing for opening
Solution Approach 1:
The sealing member is pre-configured with perforations or tear lines during manufacturing, enabling users to easily open the container without requiring excessive force or specialized tools. This preliminary preparation of the sealing structure maintains security during storage while facilitating convenient opening during use.
3Object-affected harmful factors
If the sealing member is adhered to both container body and cover, then moisture transfer is effectively limited, but the manufacturing precision requirements increase for proper alignment
Solution Approach 1:
The adhesive portions of the sealing member are designed with specific dimensional parameters and adhesive properties that enable effective sealing without requiring extremely tight manufacturing tolerances. By optimizing the adhesive layer thickness, width, and bonding strength, the patent achieves reliable moisture protection while maintaining practical manufacturing feasibility.
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 sealing member effectively reduces moisture transfer, ensuring product integrity and preventing tampering, while maintaining a convenient and secure packaging solution.
Implementation Method 1
the sealing member being a tearable tape that is at least partially adhered to both the container body and the container cover
Data Source
AI summary
The present disclosure provides components of packaging that is adapted for storing a product including a container having a body and a cover. The body and the cover define an internal storage compartment adapted for storage of a product. The body is configured to interact with the cover so as to form a joint when engaged. A sealing member is configured to substantially cover the joint, wherein the material of the sealing member is continuous and uninterrupted, thus limiting moisture loss from a product within the internal storage compartment. The sealing member is further configured to tear in a direction that is substantially parallel to the joint of the container.