Intermittent Side Seams for Absorbent Articles
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Solution Overview
Problem
Existing disposable absorbent articles, such as training pants, require effort to separate and reattach releasable side seams, which can become undone during use if not properly fastened, posing a challenge for easy inspection and secure wear.
Innovation Solution
The absorbent article features a loopless fastening system with hook elements on the fastening components, including active and non-active portions, allowing for easy separation and reattachment of side seams, ensuring secure fitting and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If releasable side seams are used to allow easy inspection, then ease of operation is improved, but reliability deteriorates because the seams may become undone during use
Solution Approach 1:
The side seam is segmented into multiple discrete fastening components distributed along the seam length. Each fastening component includes a fastening element on one panel and a corresponding receptacle on the other panel, allowing the seam to be separated and reattached in sections rather than as a single unit, improving both ease of inspection and reliability
Solution Approach 2:
The fastening components are pre-positioned and pre-aligned during manufacturing so that when the absorbent article is opened, the fastening elements and receptacles are already in corresponding positions ready for reattachment. This preliminary arrangement eliminates the need for complex alignment maneuvers by the user and ensures reliable reattachment
2Ease of operation
If releasable side seams are used to allow easy separation, then ease of operation is improved, but device complexity increases due to additional fastening components
Solution Approach 1:
The fastening components are designed to be self-aligning and self-attaching. The fastening elements and receptacles are configured so that when the article is opened and brought back together, the components automatically find their corresponding positions and attach without requiring complex user manipulation or alignment procedures, thereby reducing operational complexity despite the presence of multiple fastening components
Solution Approach 2:
Multiple fastening components use the same or similar fastening mechanism design throughout the side seam. This uniformity in fastening component design simplifies manufacturing and reduces the complexity of having to manage multiple different fastening systems, while still providing ease of separation and reattachment
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 intermittent side seams enable effortless inspection and reattachment, providing a secure and convenient wear experience by balancing ease of separation with secure attachment, preventing unintended opening during use.
Implementation Method 1
a first fastening component disposed at the first side front panel and a second fastening component disposed at the second side front panel for respective attachment to the first side back panel and the second side back panel to fasten the absorbent article around the waist of the wearer, the first and second front fastening components each having at least one active fastening portion and at least one non-active fastening portion. The first and second front fastening components comprise hook elements
Data Source
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AI summary
An absorbent article has an inside surface that faces a wearer's body when the absorbent article is worn, and an outside surface opposite the inside surface. The absorbent article includes a liquid pervious topsheet and a backsheet, at least a portion of the backsheet being liquid impervious. A front waist portion includes a first side front panel and a second side front panel. A back waist portion includes a first side back panel and a second side back panel. A crotch portion longitudinally extends between the front waist portion and the back waist portion. An absorbent assembly is disposed between the topsheet and the backsheet. A first fastening component is disposed at the first side front panel and a second fastening component is disposed at the second side front panel for respective attachment to the first side back panel and the second side back panel.