Functional fabric and method for producing functional fabric
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Solution Overview
Problem
Existing garments struggle to simultaneously provide windproof, waterproof, moisture permeability, and heat retention functions, particularly during physical exercise when sweat needs to be discharged efficiently to maintain body temperature.
Innovation Solution
A functional fabric is created by bonding a non-porous synthetic resin film made of 100% polyester mixed with carbon black fine particles to a fabric, with a thickness of 10 μm to 20 μm, which enhances windproof, waterproof, and heat retention properties while allowing moisture permeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a non-porous synthetic resin film is used to achieve windproof and waterproof functions, then windproof and waterproof performance is improved, but moisture permeability deteriorates
Solution Approach 1:
The patent applies porous synthetic resin film materials that have controlled porosity to allow moisture vapor transmission while maintaining windproof and waterproof barriers. The porous structure enables selective permeability where the pores are sized to block liquid water and wind but allow water vapor molecules to pass through, resolving the contradiction between waterproofness and moisture permeability.
Solution Approach 2:
The patent uses composite material structures combining synthetic resin films with specific pore structures and potentially multiple layers with different properties. This composite approach allows the fabric to simultaneously achieve windproof, waterproof, and moisture-permeable functions by integrating materials with complementary characteristics.
2Reliability
If multiple separate garments are worn to achieve multiple functions (cold protection, windproof, waterproof), then functional performance is improved, but device complexity and weight increase
Solution Approach 1:
The patent creates a single fabric that performs multiple functions simultaneously - cold protection through insulation, windproof through the resin film barrier, waterproof through the non-porous structure, and moisture permeability through controlled porosity. This multi-functional fabric eliminates the need for multiple separate garments, reducing complexity while maintaining all required protective functions.
Solution Approach 2:
The patent merges multiple protective functions into a single integrated fabric structure by bonding synthetic resin film to the fabric base. This combination consolidates what would traditionally require separate layers or garments into one unified material system, simplifying the overall clothing system while maintaining comprehensive protection.
3Reliability
If a thick synthetic resin film is used to improve windproof and waterproof performance, then protective function is improved, but breathability and comfort deteriorate
Solution Approach 1:
The patent optimizes the thickness parameter of the synthetic resin film to a specific range that balances protective function with breathability. By precisely controlling the film thickness, the fabric achieves sufficient windproof and waterproof protection while maintaining adequate moisture vapor transmission for comfort and breathability, avoiding the trade-off that would occur with arbitrarily thick films.
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 fabric effectively retains heat, prevents moisture loss, and maintains comfort during exercise by efficiently discharging sweat vapor, outperforming existing technologies in windproof and waterproof performance and heat retention.
Implementation Method 1
carbon black fine particles mixed in a synthetic resin film made of 100% polyester
Implementation Method 2
heat retention functions
Implementation Method 3
non-porous synthetic resin film... waterproof... moisture permeability
Data Source
AI summary
A functional fabric is formed by bonding a polyester synthetic resin film mixed with carbon black fine particles to a fabric, in which the synthetic resin film is non-porous and has a thickness of 10 μm to 20 μm. The functional fabric is produced by producing a polyester synthetic resin film mixed with carbon black fine particles and bonding the synthetic resin film to a fabric, and the produced functional fabric is entirely or partially bonded to an inner wear or an intermediate clothes to produce clothing.