Tampon Absorbent with Segmented Expansion Zones
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current tampon designs often experience premature leakage due to inadequate fit and fluid handling, discomfort during use, and inefficient absorbent capacity, particularly due to issues with expansion shapes and material construction, which can lead to inadequate customized fit and fluid interception.
Innovation Solution
A tampon absorbent with distinct absorbent material portions for the insertion and withdrawal ends, where the second absorbent material portion is partially wrapped around the first at a bonding region, allowing for different expansion capacities and providing a hinge for comfort and conformability, thereby enhancing leakage protection and user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single uniform absorbent material is used throughout the tampon, then manufacturing is simple, but the tampon cannot provide customized fit and efficient fluid handling for different regions
Solution Approach 1:
The absorbent material is divided into multiple distinct portions (first absorbent material portion and second absorbent material portion) with different properties. The first portion has higher expansion capacity for fluid interception, while the second portion has lower expansion capacity for comfort and fit, allowing each region to perform its specific function optimally
Solution Approach 2:
Different regions of the tampon are assigned different material properties tailored to their specific functions. The insertion end uses material with higher expansion capacity to maximize fluid interception, while the withdrawal end uses material with lower expansion capacity to maintain comfort and facilitate removal, creating local optimization throughout the structure
2Adaptability or versatility
If the tampon absorbent expands uniformly in all directions, then absorbent capacity is maximized, but the tampon cannot accommodate non-cylindrical vaginal canal shapes
Solution Approach 1:
The absorbent structure is segmented into regions with different expansion characteristics. The first absorbent material portion is designed to expand more freely to conform to the vaginal canal's non-cylindrical shape, while the second portion maintains more controlled expansion to preserve absorbent capacity and prevent leakage
Solution Approach 2:
The tampon absorbent is designed with dynamic expansion properties where different portions expand at different rates and to different degrees. This allows the tampon to adapt its shape dynamically to match the vaginal canal's geometry while maintaining sufficient absorbent capacity in the appropriate regions
3Quantity of substance
If the tampon is designed for complete saturation absorption, then total absorbent capacity is maximized, but premature leakage occurs before complete saturation
Solution Approach 1:
The absorbent material is segmented into a first portion optimized for initial fluid interception and a second portion optimized for sustained absorption. This segmentation allows the tampon to provide reliable leakage protection during the absorption process while maintaining high total absorbent capacity
Solution Approach 2:
The first absorbent material portion is positioned to intercept fluid flow first, creating a preliminary barrier that prevents premature leakage. This preliminary action allows the second portion to gradually absorb fluid, ensuring reliable protection throughout the entire absorption process until complete saturation
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 tampon absorbent effectively reduces premature leakage by accommodating non-cylindrical vaginal canal shapes, providing comfortable insertion and removal, and optimizing absorbent capacity without extraneous chemistry or blocking agents.
Implementation Method 1
a first absorbent material portion at the insertion end for capturing body fluid and demonstrating a first expansion capacity
Implementation Method 2
a second absorbent material portion at the withdrawal end for storing body fluid and demonstrating a second expansion capacity
Data Source
AI summary
A tampon absorbent for insertion into a vaginal cavity is provided. The tampon absorbent includes a longitudinal direction and has an insertion end and a withdrawal end. The tampon absorbent includes a first absorbent material portion at the insertion end for capturing body fluid and demonstrating a first expansion capacity, and a second absorbent material portion at the withdrawal end for storing body fluid and demonstrating a second expansion capacity. The second absorbent material portion is partially wrapped around the first absorbent material portion in a direction transverse (perpendicular) to the longitudinal direction, at a bonding region, whereby the first absorbent material portion is bonded to the second absorbent material portion at the bonding region.