Intermeshing Wing Flaps for Absorbent Article Stability
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Solution Overview
Problem
Conventional absorbent personal care articles with foldable wings often bunch or twist during use, leading to reduced effectiveness in fluid absorption and increased leakage due to improper placement and deformation.
Innovation Solution
The design features left and right flaps with specific peak and furrow configurations that intermesh or form discrete areas of overlap when folded, ensuring proper positioning and attachment to the undergarment, with fasteners positioned to secure the wings across the longitudinal centerline.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional wings are used to secure the absorbent article, then the article can be attached to undergarments, but the article tends to bunch or twist during use
Solution Approach 1:
The wing is divided into multiple peaks (first peak, second peak) and furrows that create segmented folding sections. This segmentation allows each section to independently conform to the undergarment shape while maintaining overall wing integrity, preventing bunching and twisting during wear.
Solution Approach 2:
The peaks and furrows are designed to nest together when folded, with the second peak fitting into the furrow formed by the first peak. This nested configuration creates a compact, stable structure that maintains the article's shape while securing it to the undergarment.
2Reliability
If wings are made to fit securely around the undergarment, then attachment is improved, but proper placement becomes difficult
Solution Approach 1:
The wing is pre-formed with peaks and furrows in specific configurations during manufacturing. This preliminary structuring guides the wearer through the placement process, as the peaks naturally find their positions in the furrows, making proper attachment intuitive and easy to achieve.
Solution Approach 2:
The peak-furrow design creates a self-aligning mechanism where the wing automatically positions itself correctly on the undergarment without requiring precise manual placement. The geometric interlocking of peaks and furrows provides self-guided attachment, reducing placement difficulty.
3Ease of manufacture
If the article is twisted or bunched, then the wings can be fastened, but fluid absorption effectiveness is reduced
Solution Approach 1:
The wing design incorporates flexible peaks and furrows that can dynamically adapt to the contours of the undergarment while maintaining the article in a flat, untwisted state. This dynamic flexibility allows secure fastening without compromising the article's ability to absorb fluids efficiently.
Solution Approach 2:
Different regions of the wing have specialized properties - the peaks provide structural support and positioning, while the furrows create folding channels that guide the wing's shape. This local differentiation ensures the wing maintains the article in an optimal flat state for absorption while still achieving secure attachment.
Data Source
AI summary
An absorbent personal care article, such as a sanitary napkin or incontinence pad, having a longitudinal centerline and a transverse centerline and including a pair of opposed first and second wings extending along the longitudinal sides of the article. The first wing includes two or more peaks with furrows there between and the second wing includes one or more peaks. The peaks of the first and second wings are sized and positioned on the article such that when folded under the article and around the wearer's undergarments, the peak of the second wing extends across the longitudinal centerline of the article and into the furrow of the first wing. The inter-meshing wings help wearer's properly don the articles, improve the attachment of the article to the wearer's garment and/or reduce unwanted twisting or bunching of the article during use.