Tamper-Evident Sealed Bag Assembly With Pull Tab and Note Tab
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Solution Overview
Problem
Conventional handled bags used in food delivery lack tamper-evidence and a means to securely attach order information, raising concerns about food tampering and the need for easy access to delivery details.
Innovation Solution
A tamper-evident bag assembly with integrally formed upper lateral portions and adhesive sections, featuring a pull tab and protective strip, allowing secure sealing and visible signs of tampering, along with a note tab for attaching order information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional handled bags are used for food delivery, then ease of operation is improved, but reliability is worsened due to lack of tamper evidence
Solution Approach 1:
The bag is divided into a sealed portion with tamper-evident sealing portions and an unsealed portion for access. The sealing portions are integrated into the bag structure but can be independently activated, allowing the bag to maintain both ease of operation and reliability through functional segmentation.
Solution Approach 2:
The tamper-evident sealing portions are pre-configured with adhesive layers and structural features that automatically indicate tampering when the bag is opened. The sealing mechanism is prepared in advance with visible indicators that show whether the seal has been broken, providing reliability without complicating the opening process.
2Reliability
If tamper-evident sealing is added to handled bags, then reliability is improved, but device complexity is worsened
Solution Approach 1:
The tamper-evident sealing mechanism is merged with the existing bag structure. The sealing portions are formed as integral parts of the bag panels, with adhesive layers and structural features combined into the bag material itself, rather than adding separate complex sealing devices.
Solution Approach 2:
The tamper-evident sealing portions use simple, inexpensive adhesive layers and paper-based structural elements that are designed for single-use. The sealing mechanism relies on basic adhesive bonding and visible tear features rather than complex mechanical or electronic components.
3Reliability
If adhesive is applied to seal the bag, then reliability is improved, but ease of operation is worsened due to difficulty in opening
Solution Approach 1:
The adhesive sealing is segmented into discrete sealing portions with defined boundaries. Each sealing portion has predetermined tear lines that guide the opening process, allowing the adhesive to provide strong sealing while the segmented structure enables easy, controlled opening without requiring excessive force.
Solution Approach 2:
The adhesive layer acts as an intermediary between the sealing surfaces, providing strong bonding that can be cleanly separated along predetermined lines. The adhesive creates a reliable seal during transport but allows for controlled separation during opening, mediating between seal integrity and ease of opening.
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
Ensures the integrity of food contents by providing a tamper-evident seal and easy access to order information, reducing the risk of tampering and enhancing customer assurance.
Implementation Method 1
An adhesive is disposed on an interior surface of a distal portion of the upper lateral portion
Data Source
AI summary
A tamper-evident bag assembly that can be sealed to enclose contents within the bag assembly in a tamper-evident manner. The bag assembly is provided with closure tabs that can be folded over the top edges of the bag assembly and sealed to a side panel of the bag. Strategic portions of the bag assembly can be scored to indicate tampering if unsealing of the adhesive takes place. The bag assembly is also provided with a pull tab designed facilitate opening of the sealed bag assembly to reveal the contents contained therein. When the pull tab is used to open the sealed bag, the bag cannot be re-sealed.