Absorbent Article Topsheet With Segmented Joining Strength
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Solution Overview
Problem
Conventional absorbent articles face challenges in effectively transferring skincare agents to excretion sections and peripheral areas, such as the anal and genital regions, due to the depressed nature of these areas, which hinders the contact and application of skincare agents from the topsheet.
Innovation Solution
The design incorporates a weakly-joined central region with a lower joining strength, positioned between leak-proof cuffs, to facilitate peeling and better contact with the skin, while the topsheet is treated with a skincare agent, including hamamelis extract, to enhance skin protection and healing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the topsheet is firmly joined to the absorbent member across the entire width, then structural integrity is maintained, but skincare agent transferability to excretion sections is reduced
Solution Approach 1:
The topsheet is divided into a central region and side regions with different joining strength characteristics. The central region has weakened joining strength to allow peeling and skincare agent transfer, while side regions maintain firm joining for structural integrity and leak prevention.
Solution Approach 2:
Different regions of the topsheet are given different local properties: the central region is designed with low joining strength for skincare agent transfer, while side regions maintain high joining strength for structural support and leak-proof functionality.
2Ease of operation
If the joining strength in the central region is reduced to improve skincare agent contact, then transferability to excretion sections is enhanced, but structural stability may be compromised
Solution Approach 1:
The absorbent article is segmented into central and side regions with differentiated joining characteristics, allowing the central region to peel for skin contact while side regions remain firmly joined for stability.
Solution Approach 2:
The central region is specifically designed with weakened joining strength to facilitate peeling and skin contact, while side regions maintain normal joining strength to preserve overall structural stability and prevent leakage.
3Area of stationary object
If skincare agent is applied uniformly across the entire topsheet, then coverage is maximized, but effectiveness in depressed excretion sections is reduced
Solution Approach 1:
The skincare agent application is segmented to concentrate the active ingredient region in the central area that peels off, ensuring the agent is positioned where it can effectively contact excretion sections when the diaper is worn.
Solution Approach 2:
The skincare agent is strategically positioned in the central region with weakened joining strength, creating a local concentration of therapeutic effect precisely where contact with depressed excretion sections is needed, rather than uniform distribution.
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
This configuration improves the transferability and effectiveness of skincare agents to excretion sections and peripheral areas, providing better skin protection and reducing skin troubles by ensuring adequate contact and retention of the skincare agent.
Implementation Method 1
the plant extract being present in a state where it can be transferred from the predetermined section onto the wearer's skin and adhere thereto
Data Source
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Figure 5
AI summary
In an absorbent article of the invention, a topsheet (12) is joined, on a non-skin-facing surface thereof, to a member in contact with the non-skin-facing surface. A region, within the non-skin-facing surface of the topsheet (12), that is joined includes: a weakly-joined central region (21) located in a central area, in a width direction, of the topsheet (12), and having a relatively low joining strength; and a pair of firmly-joined side regions (23) respectively located in side areas, in the width direction, of the topsheet (12) and adjacent to the weakly-joined central region (21), and having a relatively high joining strength. A skincare agent is provided to the topsheet (12).