Extensible Absorbent Core Positioning in Disposable Garments
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Solution Overview
Problem
Conventional absorbent garments often fail to maintain close physical contact with the wearer's body, leading to discomfort and uncertainty about the garment's proper positioning, especially during physical activity, which can result in leakage and reduced confidence in the garment's ability to absorb waste products effectively.
Innovation Solution
The introduction of an extensible and retractable absorbent panel assembly with elastic features that can draw the absorbent core upward into the crotch region, providing a secure and confident fit by ensuring the absorbent core is precisely located near the body's insult areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional absorbent garments are used, then the garment structure is simple and easy to manufacture, but the garment fails to maintain close physical contact with the wearer's body during physical activity
Solution Approach 1:
The patent introduces dynamic elastic components (elastic waistband, elastic leg cuffs, and drawstring mechanisms) that allow the garment to actively adjust and maintain contact with the wearer's body during physical activity. These dynamic elements enable the garment to respond to body movements and maintain reliability without requiring a completely complex structure.
Solution Approach 2:
The patent utilizes elastic materials and adjustable fastening mechanisms that change the physical parameters of the garment (circumference, tension, positioning) to maintain optimal contact. The elastic components allow the garment to stretch and retract, while the drawstring mechanism enables parameter adjustment to maintain close contact during various physical activities.
2Reliability
If the absorbent core is positioned higher in the crotch region, then absorption effectiveness is improved, but the garment may shift or move during physical activity
Solution Approach 1:
The patent employs elastic components that provide counteracting forces to hold the absorbent core in the desired higher position. The elastic waistband and leg cuffs create upward and inward forces that counteract the downward and outward movement that would occur during physical activity, thereby maintaining both absorption effectiveness and positioning stability.
Solution Approach 2:
The patent combines different materials with complementary properties: absorbent materials for the core, elastic materials for the waistband and leg cuffs, and potentially adhesive or friction-enhancing materials at contact points. This composite approach allows the garment to achieve both high positioning of the absorbent core and stability during movement.
3Reliability
If elastic components are added to maintain close contact, then contact maintenance is improved, but the garment complexity and manufacturing difficulty increase
Solution Approach 1:
The patent divides the garment into distinct functional segments: an absorbent core portion, an elastic waistband portion, and elastic leg cuff portions. This segmentation allows each component to be manufactured separately using optimized processes, then assembled together. The modular approach maintains reliability through specialized elastic components while simplifying overall manufacturing compared to a fully integrated complex structure.
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 solution enhances the effectiveness of the absorbent core's positioning, reducing the likelihood of leakage and improving the wearer's confidence in the garment's ability to absorb bodily excretions, while also allowing for a more comfortable and secure fit during various activities.
Implementation Method 1
elastic portions that, when worn, are extensible and retractable in a direction substantially parallel to the wearer's longitudinal (height) axis
Data Source
AI summary
A disposable absorbent garment can include a waistband assembly that is configured to be worn about a waist of a subject, and an absorbent panel assembly having first and second ends that are coupled to the waistband assembly. The absorbent panel assembly can include a liquid-pervious body-side layer, a liquid impervious external layer, and an absorbent core positioned between the body-side and external layers. At least one of the absorbent panel assembly or the waistband assembly includes a contraction region, such as near the absorbent core, that is configured to be extensible and retractable along a longitudinal axis of the absorbent core. The longitudinal axis can be substantially parallel to a vertical or height axis of a wearer when the absorbent garment is worn by an upright or standing individual.