Absorbent Article Waist Containment Member Segmentation
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Solution Overview
Problem
Absorbent articles face challenges in preventing leakage of body exudates, particularly in the waist regions, due to inadequate containment systems, leading to soiling and contamination, and existing designs often result in aesthetic issues and difficulty in application.
Innovation Solution
The absorbent article incorporates a waist containment member with a proximal portion and a distal portion, where the proximal portion is coupled to the chassis with elastic members for uniform tension and the distal portion is free to move, forming a pocket to enhance containment and absorption, especially in the rear waist region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waist containment member is provided to prevent exudate leakage, then containment effectiveness is improved, but the waist elastic tension becomes too high causing fasteners to be pulled in and making it difficult to lay the diaper flat for donning
Solution Approach 1:
The waist containment member is divided into a proximal portion and a distal portion. The proximal portion is coupled to the chassis with elastic members to provide containment, while the distal portion is free to move to form a pocket, reducing overall tension and improving donning ease.
Solution Approach 2:
Different portions of the waist containment member have different properties: the proximal portion is attached to provide elastic tension for containment, while the distal portion is free-moving to create a pocket, allowing each section to perform its specific function optimally.
2Reliability
If the waist region is made elastic to fit the user's body, then fit and containment are improved, but the back edge pulls away from the user's skin creating gaps and aesthetic faults
Solution Approach 1:
The waist containment member is segmented into proximal and distal portions with different attachment states. The proximal portion provides elastic fit, while the distal portion forms a pocket that maintains contact with the skin, preventing gaps and improving aesthetic appearance.
3Stability of the object's composition
If the distal portion of the waist containment member is fixed to the chassis, then structural stability is improved, but the void volume for holding exudates is reduced
Solution Approach 1:
The distal portion is extracted from the chassis attachment, allowing it to move freely and form a pocket. This creates void volume for exudate storage while maintaining structural stability through the proximal portion's attachment to the chassis.
Solution Approach 2:
The distal portion is designed to be dynamic (free to move) rather than static (fixed), allowing it to adapt to body contours and create a pocket for exudate storage while the proximal portion provides stable structural support.
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 leakage and improves the fit of absorbent articles, preventing soiling and enhancing user convenience by providing effective containment and absorption of body exudates while maintaining a secure and aesthetically pleasing fit.
Implementation Method 1
a proximal portion with a proximal edge and including a proximal portion elastic member with the proximal portion being coupled to the body facing surface of the chassis adjacent the front waist edge or the rear waist edge
Data Source
AI summary
An absorbent article can include a chassis including an absorbent body. The chassis can include a body facing surface. The absorbent article can also include a waist containment member. The waist containment member can include a proximal portion coupled to the body facing surface of the chassis and a distal portion that includes a distal edge. The proximal portion includes proximal portion elastic members and the distal portion can include distal portion elastic members. The distal portion can be free to move with respect to the chassis when the absorbent article is in a relaxed configuration.