Breathable Garment Fluid Drainage Layer
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Solution Overview
Problem
Garments face a tradeoff between strikethrough resistance and breathability, particularly at high-pressure areas, due to soil impingement from body oils and exudates affecting membrane performance, and existing solutions compromise comfort and longevity.
Innovation Solution
A breathable composite fabric comprising two nanofiber web layers with a porous fluid drainage layer in between, which reduces fluid pressure and facilitates quick drainage, maintaining breathability while enhancing strikethrough resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a waterproof membrane is incorporated into the garment to prevent fluid strikethrough, then strikethrough resistance is improved, but breathability deteriorates due to pore blockage by soil impingement
Solution Approach 1:
The garment is divided into multiple functional layers: an outer shell layer, a breathable membrane layer, and a fluid drainage layer. This segmentation allows each layer to perform its specific function - the membrane provides breathability while the drainage layer handles fluid management, resolving the contradiction between strikethrough resistance and breathability
Solution Approach 2:
A fluid drainage layer is introduced as an intermediary component between the outer shell and the breathable membrane. This intermediate layer captures and redirects fluids before they reach the membrane, preventing pore blockage while maintaining the membrane's breathability function
2Duration of action of stationary object
If a polymer coating is applied to the membrane to protect against soil impingement, then durability is improved, but breathability deteriorates due to reduced pore passage
Solution Approach 1:
The fluid management function is extracted from the breathable membrane and assigned to a separate fluid drainage layer. This allows the membrane to maintain its original breathable structure without protective coatings that would block pores, while the drainage layer provides the necessary protection against soil impingement
Solution Approach 2:
The fluid drainage layer serves as a protective intermediary that absorbs the impact of soil impingement and bodily fluids, preventing direct contact with the breathable membrane. This extends the membrane's lifetime without compromising its breathability
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 composite fabric effectively reduces fluid strikethrough at high-pressure areas without compromising breathability, ensuring improved comfort and longevity of garments.
Implementation Method 1
reduces fluid pressure and facilitates quick drainage
Implementation Method 2
breathable composite fabric comprising two nanofiber web layers
Data Source
AI summary
A garment includes a breathable composite fabric between outer and inner fabric layers. The breathable composite fabric comprises two nanofiber web layers and a porous fluid drainage layer disposed therebetween.