Breathable Clothing Insert Using Stack Effect Ventilation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing breathable clothing technologies face challenges in effectively exchanging air and preventing water infiltration while maintaining thermal insulation and perspiration management, often requiring complex systems and additional layers that complicate manufacturing and styling.
Innovation Solution
A breathable clothing insert comprising a preassembled structure with a water-repellent external covering, a vapor-permeable internal layer, and spacer means that utilizes the 'stack effect' for ventilation, allowing perspiration vapor to escape while preventing external water infiltration, and can be easily integrated into various clothing types without the need for additional interlinings or complex stitching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple layers of clothing are used for thermal insulation, then protection against cold is improved, but the ability to allow perspiration vapor to escape deteriorates
Solution Approach 1:
The clothing system is divided into multiple functional layers: an outer shell for insulation, a breathable membrane layer for vapor transmission, and an inner lining. This segmentation allows each layer to perform its specific function - thermal insulation while simultaneously allowing perspiration vapor to escape through the breathable membrane.
Solution Approach 2:
The patent employs composite material construction combining different fabric types with distinct properties - waterproof outer layers, breathable membranes with specific permeability characteristics, and moisture-wicking inner layers. This composite structure achieves both thermal insulation and vapor permeability by leveraging the complementary properties of each material.
2Ease of operation
If openings are added to clothing for ventilation, then air exchange is improved, but water infiltration protection deteriorates
Solution Approach 1:
The breathable membrane is strategically positioned at specific locations where vapor escape is most needed, such as underarm regions and back areas, rather than uniformly throughout the garment. This localized application maintains water protection in areas where openings would be problematic while enabling ventilation where it provides maximum benefit.
Solution Approach 2:
The breathable membrane acts as an intermediary element between the interior microclimate and exterior environment. It selectively transmits water vapor molecules while blocking liquid water and wind, enabling air exchange functionality without compromising the protective barrier against water infiltration.
3Reliability
If complex systems with multiple layers are used for breathability, then perspiration management is improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple functional properties into integrated components - the breathable membrane simultaneously provides vapor permeability, wind resistance, and water protection in a single layer. The outer shell fabric integrates durability, water repellency, and breathability characteristics, reducing the need for separate functional layers and simplifying the overall manufacturing process.
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 provides effective air exchange and prevents water infiltration, enhancing thermal regulation and comfort while simplifying manufacturing and styling, reducing production complexity and waste, and allowing for flexible application across different clothing types.
Implementation Method 1
which utilizes the 'stack effect' for ventilation, allowing perspiration vapor to escape while preventing external water infiltration
Implementation Method 2
a water-repellent external covering
Implementation Method 3
a vapor-permeable internal layer
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A breathable item of clothing (50, 500) and a breathable insert (10) for items of clothing (50, 500), the item of clothing (50, 500) comprising: – an external enclosure (51, 510), the surface of which has at least one opening for evacuating perspiration in the vapor phase in an upper region of the item of clothing (50, 500), – a breathable external covering (11) which comprises means (12, 12) for the external retention of water, impurities or others, – an internal layer (13) to be directed toward the body of the user of the item of clothing (50, 500), forming an interspace by virtue of means (16, 16, 216) for spacing the external covering (11) from the body of the user, for the passage of perspiration in the vapor phase, produced by the body and channeled within the interspace, to the external covering (11). The external covering (11), the means (12, 112) for external retention of water, impurities or others, and the internal layer (13) are placed in a breathable preassembled insert (10), which is arranged at the opening and is adapted to form for it a protection and a support both during assembly and during operation.