Absorbent Article Emboss Pattern for Fluid Diffusion and Stability
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Solution Overview
Problem
Existing absorbent articles face issues with fluid diffusion being suppressed by embosses, leading to inaccurate absorption visualization and discomfort due to stickiness, and emboss floating caused by uneven compression forces.
Innovation Solution
The design includes a pair of embosses on the liquid permeable topsheet with body fluid expelling part embosses, longitudinal direction embosses, and inclined embosses that guide fluid diffusion without suppression, allowing accurate visualization and reducing stickiness by spacing apart the inclined embosses and connecting them to form a continuous line for improved stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If embosses are provided at the surface of the liquid receiving part to visualize absorption, then the degree of absorption can be recognized, but the body fluid diffusion is suppressed leading to inaccurate visualization and stickiness
Solution Approach 1:
The emboss pattern is segmented into multiple independent linear embosses arranged in parallel rather than a continuous border. This segmentation allows fluid to diffuse through the spaces between embosses while still providing visualization marks, resolving the contradiction between visualization and diffusion suppression.
Solution Approach 2:
Instead of providing a complete continuous border emboss that fully encloses the liquid receiving part, only partial linear embosses are provided. This partial action allows sufficient fluid diffusion while maintaining enough emboss structure to provide accurate absorption visualization through the visible emboss patterns.
2Loss of information
If a continuous border emboss surrounds the liquid receiving part, then absorption degree can be visualized, but body fluid is trapped causing stickiness and discomfort
Solution Approach 1:
The continuous border emboss is divided into multiple separate linear embosses with spaces between them. This segmentation creates diffusion pathways for body fluid to escape, preventing trapping and stickiness while the linear embosses still provide visual indication of absorption levels.
Solution Approach 2:
Instead of using a continuous enclosing border that traps fluid, the invention uses open linear embosses that extend inward from the edges. This inverted approach provides visualization without enclosure, allowing fluid to diffuse freely while still creating visible absorption patterns.
3Device complexity
If embosses are formed by pressing from the surface side, then the structure is simple, but floating of the emboss occurs due to uneven compression forces
Solution Approach 1:
The single large emboss is segmented into multiple smaller linear embosses distributed across the liquid receiving part. This segmentation reduces the compression force required for each individual emboss and distributes the forces more evenly, preventing floating while maintaining structural stability.
Solution Approach 2:
Different regions of the liquid receiving part have different emboss characteristics - linear embosses are provided at specific locations where visualization is needed, while other areas maintain their original structure. This local differentiation allows stable emboss formation without requiring uniform compression across the entire 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 design enables accurate visualization of fluid diffusion and prevents discomfort from stickiness while maintaining emboss stability, ensuring proper fluid distribution and absorption without side leakage.
Implementation Method 1
it is necessary to cause diffusion of the body fluid that is penetrated in the absorbent body
Implementation Method 2
as the emboss formed from the surface side of the liquid permeable topsheet is integrally compressing the liquid permeable topsheet, the absorbent body
Implementation Method 3
there is a case that floating of the emboss occurs by which a surface material is floated from the absorbent body due to the force generated by returning of the surface material
Data Source
AI summary
An absorbent article includes an absorbent body provided between a liquid permeable topsheet and a backsheet; and embosses formed at both sides of the liquid permeable topsheet, wherein each of the embosses includes a body fluid expelling part emboss formed at an area corresponding to a body fluid expelling part along a longitudinal direction of the absorbent article, and is constituted of a shaped line protruding outward in a width direction of the absorbent article, longitudinal direction embosses formed at front and rear of the body fluid expelling part emboss along the longitudinal direction of the absorbent article, respectively, and inclined embosses extending from outer end portions of the longitudinal direction embosses, respectively, and being inclined toward a center side in the width direction of the absorbent article, and wherein end portions of the right and left inclined embosses are spaced apart from each other in the width direction.