Multilayered Armpit Shield for Perspiration Control
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Solution Overview
Problem
Existing fabrics fail to effectively control and prevent perspiration from bleeding through clothing, leading to social stigmas and odor issues in occupational and social settings.
Innovation Solution
Multilayered fabrics comprising a first layer to wick moisture, a second layer to absorb it, and a third layer that does not absorb moisture, with optional antimicrobial agents to reduce microbial growth and odor, are designed to manage perspiration and prevent it from reaching the outer fabric surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-layer fabric is used, then the garment is simple and comfortable, but perspiration bleeds through to the outer surface causing social stigma and odor
Solution Approach 1:
The fabric is divided into multiple functional layers: a wicking layer to transport moisture away from the skin, an absorbing layer to hold the moisture, and an outer layer to prevent it from reaching the visible surface. This segmentation resolves the contradiction by containing perspiration within specific zones rather than allowing it to penetrate the entire fabric structure.
Solution Approach 2:
The solution moves from a single-layer two-dimensional fabric to a multi-layer three-dimensional structure. By adding depth through multiple layers with different functional properties, the fabric can manage perspiration through vertical transport and containment, preventing it from reaching the outer surface while maintaining comfort against the skin.
2Quantity of substance
If moisture-absorbing materials are used throughout the fabric, then perspiration is absorbed well, but the fabric becomes too absorbent and moisture returns to the skin
Solution Approach 1:
Different regions of the fabric have different absorbent properties tailored to their specific functions. The inner wicking layer has moderate absorbency to transport moisture, the middle absorbing layer has high absorbency to hold moisture, and the outer layer has low absorbency to prevent moisture return to skin. This local differentiation resolves the contradiction by optimizing absorbency for each specific zone rather than using uniform absorbency throughout.
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 multilayered fabric system effectively wicks and absorbs perspiration, preventing it from reaching the outer surface, thereby reducing odor and social stigma concerns while maintaining antimicrobial properties and durability through multiple wash cycles.
Implementation Method 1
a first fabric layer configured to wick moisture away from a person's body
Implementation Method 2
a second fabric layer configured to absorb the moisture
Data Source
AI summary
Described herein are shields adapted for permanent attachment or removable attachment in the armpit area of a shirt. The shields are multi-layered fabrics that absorb perspiration, and in certain aspects, are used to control, reduce, or prevent perspiration from bleeding through and being shown on the outer surface of a garment. For example, these garments can include, but are not limited to, a multilayered fabric having at least a first fabric layer configured to wick moisture away from a person's body, at least a second fabric layer configured to absorb the moisture, and at least a third fabric layer that does not absorb moisture. As further described herein, various antimicrobial agents can be included in at least one fabric layer. These antimicrobial agents can be used to reduce or prevent the growth of microbes in and/or on the fabric, and these antimicrobial agents can be used to reduce or prevent odors derived from odor producing microbes.