Embossed Shaping Element for Dual-Layer Absorbent Article Fit
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Solution Overview
Problem
Existing absorbent articles for female users face challenges in providing a good fit, leakage security, discretion, and comfort while efficiently absorbing body liquids, particularly for heavier bladder leakage.
Innovation Solution
An absorbent article with a dual-layer core structure, where the second absorbent layer has a higher basis weight and density, and a central embossed shaping element, combined with side cuts and optional outer embossed shaping elements, to enhance flexibility and shaping to the body's contours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the second absorbent layer has higher basis weight and density to improve absorption capacity, then leakage security is improved, but the article becomes stiffer and less flexible to conform to the body
Solution Approach 1:
The absorbent core is divided into two distinct layers: a first absorbent layer with lower basis weight (below 200 gsm) and a second absorbent layer with higher basis weight (above 200 gsm). This segmentation allows each layer to perform its specific function - the first layer provides flexibility and comfort, while the second layer provides high-capacity absorption for leakage security.
Solution Approach 2:
Different regions of the absorbent core have different properties. The first absorbent layer has lower density and greater extension to provide flexibility and comfort in areas requiring conformability. The second absorbent layer has higher density and is strategically positioned to provide high-capacity absorption where leakage security is most critical, creating local quality variations that resolve the contradiction.
2Quantity of substance
If the absorbent core is made thicker to improve absorption capacity, then leakage security is improved, but the article becomes less discreet and less comfortable to wear
Solution Approach 1:
The absorbent core is segmented into two layers with different thicknesses and densities. The first absorbent layer has greater extension and lower basis weight, contributing less to overall thickness while providing flexibility. The second absorbent layer has higher basis weight but is configured to provide maximum absorption capacity without proportionally increasing overall thickness, thus maintaining comfort and discretion.
Solution Approach 2:
The absorbent core uses a composite structure combining two different absorbent layers with distinct properties. The first layer (lower basis weight below 200 gsm) and second layer (higher basis weight above 200 gsm) work together as a composite system, where the first layer provides comfort and flexibility while the second layer provides high-capacity absorption, achieving both comfort and leakage security without excessive thickness.
3Ease of operation
If the absorbent article is made thinner to improve discretion and comfort, then comfort and discretion are improved, but the article becomes less effective at absorbing body liquids
Solution Approach 1:
The absorbent core employs local quality by creating regions with different absorption capacities. The first absorbent layer with lower basis weight provides flexibility and comfort, while the second absorbent layer with higher basis weight (above 200 gsm) is strategically positioned to provide high-capacity absorption in critical areas, ensuring effective liquid absorption without requiring uniform thickness throughout the entire core.
Solution Approach 2:
The dual-layer composite structure allows the article to be thin overall while maintaining high absorption capacity. The first absorbent layer (below 200 gsm) and second absorbent layer (above 200 gsm) are combined such that the thinner first layer provides comfort and discretion, while the strategically configured second layer ensures sufficient absorption capacity for heavier bladder leakage.
4Quantity of substance
If the second absorbent layer has higher density to improve absorption efficiency, then absorption capacity is improved, but the core structure is perceived as less flexible and less prone to shape in response to user body
Solution Approach 1:
The absorbent core is segmented into two layers with different densities. The first absorbent layer has lower density and greater extension, providing flexibility and comfort in areas requiring conformability to the body. The second absorbent layer has higher density (between 120-500 kg/m3) and is configured to provide high-capacity absorption, creating a segmented structure where each layer's density is optimized for its specific function.
Solution Approach 2:
Different regions of the absorbent core have different density properties. The first absorbent layer has lower density to provide flexibility and comfort where conformability is needed. The second absorbent layer has higher density to provide high-capacity absorption in critical areas, creating local quality variations that allow the core to be both flexible and high-performance simultaneously.
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 provides improved fit, discretion, and comfort by allowing the article to conform to the body, reducing stiffness, and enhancing leakage security through predictable shaping and absorption.
Implementation Method 1
the central embossed shaping element enables an improved flexing and shaping of such pad
Implementation Method 2
the absorbent core must quickly acquire body liquids into the structure from the point of application and subsequently distribute the body liquids within and throughout the absorbent core
Data Source
AI summary
An absorbent article in the form of a sanitary napkin or incontinence pad includes a fluid permeable topsheet, a backsheet and an absorbent core including a first and a second absorbent layer, the first absorbent layer being located between the topsheet and the second absorbent layer, and the second absorbent layer being located between the first absorbent layer and the backsheet. The absorbent core has a front part, a rear part and an intermediate part located between the front and rear parts. The first absorbent layer has a greater extension than the second absorbent layer in the plane of the article. The second absorbent layer includes a central embossed shaping element extending in the longitudinal direction and the second absorbent layer has a basis weight above 200 gsm and the first absorbent layer has a basis weight below 200 gsm.