Semisolid Core Sanitary Napkin for Leak Prevention
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Solution Overview
Problem
Current sanitary napkins lack a supportive structure to securely adhere to the body, leading to difficulties in maintaining a protective barrier against leaks due to gravity and movement.
Innovation Solution
Incorporation of a flexible semisolid core structure affixed to the base, combined with an absorbent sheet layer, providing structural integrity and a secure fit by contouring to the body and enhancing absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flat surface design is used, then manufacturing is simple, but the ability to adhere to the body and prevent leaks deteriorates
Solution Approach 1:
The sanitary napkin is divided into distinct functional zones: a flat base layer for manufacturing simplicity and a contoured semisolid core structure for improved adhesion and leak prevention. This segmentation allows each part to serve its specific function optimally.
Solution Approach 2:
A semisolid core structure with curved, contoured surfaces is introduced to replace the entirely flat design. This curvature enables the napkin to conform to the body's natural contours, improving adhesion and preventing leaks while maintaining manufacturing feasibility through the layered construction approach.
2Device complexity
If a flat surface design is used, then device complexity is low, but the secure fit and contact with body deteriorates
Solution Approach 1:
The napkin structure is segmented into a simple flat base and a contoured core, maintaining overall structural simplicity while adding localized complexity only where needed for body contact and secure fit.
Solution Approach 2:
The contoured semisolid core provides localized structural complexity and body-conforming quality only in the areas where direct contact and secure fit are needed, while the base layer remains simple and flat for ease of manufacture and wear.
3Reliability
If direct absorption areas are excluded, then leak prevention is improved, but absorption capacity deteriorates
Solution Approach 1:
The semisolid core creates localized direct contact zones with the body where absorption occurs most effectively, while the surrounding flat base layer provides broader protection and containment, optimizing both leak prevention and absorption capacity in their respective zones.
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 significantly reduces leaks and ensures a more secure fit by maintaining structural integrity and adapting to body shape, improving absorbency and comfort.
Implementation Method 1
The absorbent layer, 1, surrounding the semisolid core, 2, provide both additional structural integrity of the semisolid core, 2, and comfort of the sanitary napkin itself
Data Source
AI summary
The sanitary napkin has a semisolid (flexible) structure affixed along the center base of it. The semisolid flexible structure is an elongated form of matter that goes along the base of the sanitary napkin. Surrounding the affixed center base semisolid structure is material that is not semisolid or solid, but soft and consistent with the rest of the sanitary napkin.