Reclosable Package With Pleated Weakness Line
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Solution Overview
Problem
Flexible packages for absorbent articles often lack effective reclosable features, leading to potential tampering or contamination before use, and existing solutions add cost and complexity to manufacturing.
Innovation Solution
A flexible reclosable package design featuring a first and second panel with a pleated portion and a hooded portion, where a line of weakness is integrated within the pleated portion, allowing for easy conversion between closed and open configurations without visible external seams, ensuring the package remains sealed until opened.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hood is used as an integrated reclosable feature, then the package can be opened and closed easily, but the package cannot remain sealed at the time of purchasing because the hood provides the only access to the flexible package
Solution Approach 1:
The package is divided into two functional zones: a hooded portion that provides reclosable access and a pleated portion with a sealed line of weakness that maintains initial sealing. This segmentation allows the package to both remain sealed until purchase and be easily opened/reclosed afterward.
Solution Approach 2:
A line of weakness is introduced as an intermediary element within the pleated portion. This line of weakness acts as a controlled failure point that allows the package to be opened while maintaining the integrity of the hooded reclosable feature for subsequent use.
2Reliability
If additional reclosable features such as tape tab fastener, hook and loop fastener, snap, button, or latch are added, then the package can be sealed and reclosed, but the cost and complexity of manufacturing increases
Solution Approach 1:
The complex reclosable features (tape tabs, hooks, loops, snaps, buttons, latches) are extracted and replaced with a simpler hooded portion mechanism that achieves the same protective function through a single integrated structure.
Solution Approach 2:
The hooded portion structure is designed to be self-contained and self-operating, requiring no additional fastening components. The hood itself provides both the sealing and reclosing function through its movable configuration, eliminating the need for separate fastening systems.
3Ease of manufacture
If the first and second panels are integrally connected, then the package structure is simplified, but the hood provides the only access to the flexible package and cannot maintain sealing
Solution Approach 1:
Different regions of the package are given different functional qualities: the hooded portion is designed for reclosable access while the pleated portion is designed for maintained sealing. This local differentiation allows the package to have both integral panel connection and reliable sealing.
4Ease of operation
If the line of weakness is visible from the exterior, then the opening mechanism is easier to locate, but the aesthetic appearance of the package is compromised
Solution Approach 1:
The line of weakness is positioned within the pleated portion where it is hidden from external view, yet it still functions as an effective opening mechanism. The pleated structure itself serves as the visual indicator, replacing the need for a visible line of weakness while maintaining ease of operation.
Data Source
AI summary
A flexible reclosable package includes a first side panel and a second side panel. The first panel defines a right side edge portion, a left side edge portion, a bottom edge portion, and a pleated portion. The second panel defines a right side edge portion, a left side edge portion, a bottom edge portion, and a hooded portion. A first seam joins the right side edge portion of the first panel with the right side edge portion of the second panel. A second seam joins the left side edge portion of the first panel with the left side edge portion of the second panel. A third seam joins the bottom edge portion of the first panel with the bottom edge portion of the second panel. A first line of weakness is provided in the pleated portion.