One-Piece Chassis Absorbent Article Reducing Seams
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Solution Overview
Problem
The complexity of personal care absorbent articles has led to increased costs and discomfort due to seams, joints, and connection points, which can cause chafing and leakage issues, making them unaffordable for many consumers while compromising on desired attributes like leakage protection, conformance, and dry feel.
Innovation Solution
A one-piece absorbent article with a chassis material that forms integral side portions through a manufacturing process, reducing seams and connection points, utilizing a laminate construction with a liquid permeable outer layer and impermeable inner layer, and incorporating a fold to enhance material utilization and reduce waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple pieces are attached together to form a complete absorbent article, then the desired attributes of leakage protection and conformance are improved, but the device complexity increases and manufacturing costs rise
Solution Approach 1:
The patent merges multiple separate pieces into a single integrated chassis structure. The chassis is formed as one continuous piece of material that includes front waist region, back waist region, crotch region, and side portions all connected without separate attachment points, thereby reducing complexity while maintaining leakage protection through the integrated design.
Solution Approach 2:
The chassis is segmented into functional regions (front waist, back waist, crotch, side portions) that are all part of a single continuous structure. This segmentation allows each region to serve its specific function while avoiding the need for multiple separate components that would require attachment.
2Reliability
If multiple pieces are attached together to form a complete absorbent article, then the desired attributes of leakage protection and conformance are improved, but the manufacturing costs increase
Solution Approach 1:
The patent combines multiple separate components into a single-chassis construction that can be manufactured as one continuous piece. This merging eliminates the need for separate attachment operations, reduces material waste from cutting and joining, and simplifies the manufacturing process, thereby reducing costs while maintaining leakage protection.
3Reliability
If seams and connection points are present in the absorbent article, then the desired attributes of conformance and leakage protection are achieved, but the object-affected harmful factors increase due to skin irritation from rubbing materials
Solution Approach 1:
The patent merges multiple pieces into a single continuous chassis structure that eliminates seams, joints, and connection points where materials would rub against the wearer's skin. The integrated construction provides a smooth surface that reduces chafing and skin irritation while maintaining leakage protection through the continuous material structure.
4Ease of manufacture
If attempts are made to provide an absorbent article at a lower cost, then the manufacturing cost is reduced, but the leakage protection and conformance attributes deteriorate
Solution Approach 1:
The patent achieves cost reduction through a single-chassis design that simplifies manufacturing and reduces material waste, while simultaneously maintaining leakage protection through the integrated structure. The continuous material construction provides reliable leakage protection without requiring multiple expensive attachment operations or additional components.
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 solution decreases material waste, provides a more integral appearance, minimizes skin irritation, and maintains leakage protection and conformance at a lower cost, making the absorbent article more affordable and comfortable.
Implementation Method 1
a first layer of material is a liquid permeable material and a second layer of material is a liquid impermeable material
Data Source
AI summary
An absorbent article which has a one-piece chassis and integral side portions. The one-piece chassis can be a bi-laminate material and can have a liquid permeable layer and a liquid impermeable layer bonded together. The side portions can be integrally formed from the one-piece chassis.