Disposable Garment Breathable Side Barriers via Elastic Flaps
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Solution Overview
Problem
The high cost of manufacturing disposable absorbent articles with discrete barrier leg cuff members increases the overall cost of these products, making them unaffordable for many potential purchasers.
Innovation Solution
A disposable pant-like garment with breathable side barriers is designed, featuring longitudinally extending side flaps attached to the absorbent assembly with elastic gathering members that contract to form a barrier, eliminating the need for discrete leg cuff members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If discrete barrier leg cuff members are attached to the absorbent article, then side barrier protection is provided, but manufacturing costs increase
Solution Approach 1:
The side barrier flaps are integrated directly into the absorbent assembly as an integral part, eliminating the need for separate discrete barrier leg cuff members. The flaps are formed from the same materials layers (acquisition layer, core, and coverstock) as the rest of the absorbent article, combining multiple functions into a unified structure that reduces part count and manufacturing complexity.
Solution Approach 2:
The side barrier flaps serve multiple functions: they provide side barrier protection to prevent leakage, maintain structural integrity of the absorbent assembly, and work with the elastic gathering members to create a functional barrier system. This multi-functionality eliminates the need for dedicated discrete barrier components.
2Reliability
If discrete barrier leg cuff members are attached to the absorbent article, then side barrier protection is provided, but device complexity increases
Solution Approach 1:
The side barrier flaps are formed as an integral extension of the absorbent assembly's existing layers, merging the barrier function with the structural components already present in the article. This integration reduces the number of separate parts and simplifies the overall device structure.
Solution Approach 2:
The side barrier flaps are created by segmenting and extending specific layers (acquisition layer, core, and coverstock) laterally beyond the main body of the absorbent article. This segmentation approach allows the barrier function to be distributed across existing structural elements rather than requiring a separate complex component.
3Reliability
If elastic gathering members are used to raise side flaps, then breathable side barriers are formed, but manufacturing complexity increases
Solution Approach 1:
The elastic gathering members are attached to the side barrier flaps in a manner that allows them to automatically contract and raise the flaps when the absorbent article is worn. This self-activating mechanism eliminates the need for complex manual assembly or additional actuation systems, as the elastic members perform the barrier-raising function automatically through their inherent elastic recovery.
Solution Approach 2:
The elastic gathering members utilize changes in elastic parameter (contraction force) in response to wear conditions to automatically adjust the position of the side barriers. This parameter-based control simplifies the manufacturing process by eliminating the need for complex mechanical or electronic control systems.
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 design reduces manufacturing costs by integrating side barrier protection into the garment itself, making it more affordable while maintaining effective leakage protection.
Implementation Method 1
Each side flap has a longitudinally extending elastic gathering member attached adjacent to its proximal edge such that, when allowed to relax, the elastic gathering member contracts and lifts the proximal edge away from the interior surface of the absorbent assembly
Data Source
AI summary
A simple disposable pant-like garment includes an absorbent assembly attached to a chassis. The absorbent assembly includes an absorbent core that may contain superabsorbent particles, which may be contained inside pockets. The absorbent assembly is folded laterally inward at both of its side edges to form laterally opposing side flaps. Each side flap is attached to an interior surface of the absorbent assembly adjacent to its end edges. A longitudinally extending elastic gathering member is attached to each side flap adjacent to its proximal edge. When the article is worn, the elastic gathering members contract and raise the side flaps to form breathable side barriers. The chassis includes a water-impermeable sheet and may be extensible. The absorbent assembly may be attached in a cruciform pattern such that portions of the chassis that lie outside the attachment pattern are not restrained by attachment to the absorbent assembly and therefore remain extensible.