Multi-Layer Perspiration Barrier for Evaporative Cooling
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Solution Overview
Problem
Existing undergarments with perspiration shields often cause increased perspiration and discomfort due to their design, which acts as a barrier to airflow and lacks effective evaporative cooling, failing to provide adequate relief for individuals with axillary hyperhidrosis.
Innovation Solution
A garment with integrated multi-layer perspiration barriers, comprising four layers with a two-piece panel construction, where the first layer is cotton for comfort, the second is loosely woven terry-cloth for airflow, the third is a hydrophilic breathable film for vapor transmission, and the fourth is cotton for aesthetics, configured to promote evaporative cooling and moisture vapor transmission by allowing air to flow through and reducing skin irritation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof layer is placed proximate the wearer's skin in the underarm area to protect outer clothing from perspiration, then clothing protection is improved, but perspiration increases and wearer comfort deteriorates due to the shield acting as a barrier to air flow
Solution Approach 1:
The perspiration barrier is divided into multiple functional layers: an outer waterproof layer for clothing protection, intermediate wicking layers for moisture transport, and an inner comfort layer for skin contact. This segmentation allows each layer to perform its specific function without compromising overall breathability.
Solution Approach 2:
Intermediate wicking layers are introduced between the waterproof outer layer and the skin to facilitate moisture vapor transmission and air flow. These intermediary layers act as mediators that transport perspiration away from the skin while maintaining the protective function of the outer waterproof layer.
2Reliability
If a perspiration shield is placed in the underarm area to protect outer clothing, then clothing protection is improved, but evaporative cooling is reduced and wearer comfort deteriorates
Solution Approach 1:
The perspiration barrier incorporates porous and breathable materials that allow water vapor to pass through while maintaining the protective function. The porous structure enables evaporative cooling by permitting moisture vapor transmission and air circulation, preventing the suffocating effect of solid waterproof barriers.
Solution Approach 2:
The barrier is constructed as a composite structure combining materials with different properties: waterproof materials for protection, hydrophilic materials for moisture wicking, and breathable materials for vapor transmission. This composite approach allows simultaneous achievement of clothing protection and evaporative cooling.
3Quantity of substance
If high concentration antiperspirant solutions are used to treat axillary hyperhidrosis, then perspiration reduction is improved, but skin irritation increases
Solution Approach 1:
The active antiperspirant ingredients are extracted from high-concentration solutions and replaced with a passive physical barrier approach. The perspiration barrier garment provides protection through its multi-layer construction without requiring irritating chemical agents, thereby reducing perspiration management through mechanical rather than chemical means.
4Object-affected harmful factors
If a multi-layer perspiration barrier is integrated into the garment to provide evaporative cooling and moisture vapor transmission, then wearer comfort is improved, but device complexity increases
Solution Approach 1:
Multiple functional layers are merged into a single integrated garment structure. The waterproof outer layer, wicking intermediate layers, and breathable inner layer are combined and sewn together as one cohesive unit, eliminating the need for separate components and simplifying usage while maintaining complex functionality.
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 effectively absorbs and evaporates perspiration, reducing body temperature and discomfort, while maintaining aesthetic consistency and user comfort by enhancing airflow and vapor transmission, thus providing superior perspiration management for individuals with axillary hyperhidrosis.
Implementation Method 1
the second is loosely woven terry-cloth for airflow
Implementation Method 2
the third is a hydrophilic breathable film for vapor transmission
Implementation Method 3
the third is a hydrophilic breathable film for vapor transmission
Implementation Method 4
uniquely configured to provide high levels of evaporative cooling and moisture vapor transmission
Implementation Method 5
high levels of evaporative cooling and moisture vapor transmission
Data Source
AI summary
In accordance with the present invention, there is provided a garment or undergarment (e.g., a T-shirt) which is provided with integrated multi-layer perspiration barriers uniquely configured to provide high levels of evaporative cooling and moisture vapor transmission. The perspiration barriers are integrated into the sleeve and torso portions of the garment such that such perspiration barriers actually define the underarm portions thereof. Each of the perspiration barriers is preferably comprised of four layers, each of which is formed from two separate panel pieces. The various layers included in each of the perspiration barriers, the manner in which such layers are stacked upon and attached to each other, and the manner in which the layers forming each perspiration barrier are integrated into the garment are specifically adapted to collectively promote evaporative cooling and a vapor transmission effect which provides superior perspiration absorption and evaporation, in addition to enhanced user comfort.