Flow-wrap pack peelable fin seal for wipes
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Solution Overview
Problem
Existing flow-wrap packs for wipes and tissues require complex removal systems involving additional parts like resealable labels or plastic closures, which are inconvenient and complicate the packaging process, often resulting in mismatched printing and increased labor.
Innovation Solution
A flow-wrap pack design featuring a fin seal with peelable and resealable longitudinal sealing strips that form a handle for easy opening and reclosing, eliminating the need for die cuts and additional labels, and utilizing a multilayer film with different polymers for enhanced sealing and print integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a die cut opening with resealable label or plastic closure is introduced to enable removal and reclosing of the flow-wrap pack, then the pack can be opened and reclosed, but the structure becomes more complex and the packaging process becomes more laborious
Solution Approach 1:
The invention removes the unnecessary die cut opening and separate resealable label or plastic closure components. Instead, it uses the existing fin seal structure with a tear line that allows direct opening and reclosing of the flow-wrap pack without additional parts, thereby simplifying the packaging structure while maintaining ease of operation
Solution Approach 2:
The invention combines the opening and reclosing functions into the existing fin seal structure itself. The tear line is integrated into the fin seal, allowing the seal to be broken for opening and then resealed without requiring separate removal systems or additional components, thus reducing structural complexity
2Ease of operation
If a resealable label is applied over the die cut opening to enable reclosing, then the pack can be reclosed, but the printing may not match due to different printing processes
Solution Approach 1:
The invention eliminates the separate resealable label that causes printing mismatch issues. By removing this additional component and using the fin seal's inherent reclosing capability instead, the printing consistency is maintained as no separate printing process is required for a label
Solution Approach 2:
The fin seal structure serves multiple functions: it provides the seal, contains the tear line for opening, and enables reclosing. This multi-functionality eliminates the need for a separate resealable label, thereby avoiding printing consistency issues while maintaining reclosing capability
3Ease of operation
If additional parts like resealable labels or plastic closures are integrated into the flow-wrap pack, then removal and reclosing is enabled, but the packaging process requires additional steps rendering it more laborious and complicated
Solution Approach 1:
The invention removes additional parts like resealable labels or plastic closures from the packaging structure. By using only the fin seal with an integrated tear line, the packaging process is simplified and becomes more efficient without requiring additional steps for applying or managing separate components
Solution Approach 2:
The invention merges the removal system functionality directly into the fin seal structure through the tear line. This integration eliminates the need for separate additional parts and reduces the number of packaging process steps, thereby improving productivity while maintaining ease of operation
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 simplifies the removal and reclosing process, increases packaging speed, and maintains print quality by integrating the sealing mechanism within the film, reducing the complexity and additional steps in the packaging process.
Implementation Method 1
The two longitudinal sealing strips extend parallel to the side edges of the film adjacent to a non-sealing end region arranged on the same side of the film
Implementation Method 2
the sealing strips are peelable and resealable
Implementation Method 3
After removing the item the sealing strips are pressed to one another and folded back down against the back wall in order to reseal the flow-wrap pack
Data Source
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AI summary
The present invention relates to a flow-wrap pack (1) for wipes and tissues having a film (3) defining a front wall (5) and a back wall (7), a longitudinal sealed seam in the form of a fin seal (9) and two transverse sealed seams (11) defining a product space. The fin seal (9) is formed by two longitudinal sealing strips (15) arranged on a side of the film (3) facing the product space and extending parallel to the side edges (17) of the film (3) adjacent to a non-sealing end region (13) arranged on the same side of the film (3). The sealing strips (15) are peelable and resealable.