Flame-Resistant Fabric Blends for Durable Protective Garments
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Solution Overview
Problem
Existing protective fabrics face a challenge in balancing flame resistance and durability, with durable materials like nylon often lacking flame resistance, necessitating a compromise that compromises protection.
Innovation Solution
Incorporating high percentages of flame-resistant nylon fibers into fiber blends with inherently flame-resistant fibers, such as aramid and modacrylic, while using different fiber blends for the body and face sides of the fabric to enhance durability and maintain flame resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If polyamide materials such as nylon are used to improve durability and strength, then the fabric exhibits high durability, but the fabric becomes prone to melt and burn when subjected to heat and flame
Solution Approach 1:
The patent applies composite materials by creating fiber blends that combine nylon (for durability) with inherently flame-resistant fibers such as aramid, modacrylic, or FR cotton. This composite approach allows the fabric to achieve both high durability from the nylon and flame resistance from the FR fibers, resolving the contradiction between these two properties.
2Object-affected harmful factors
If flame resistant fibers are used to maintain flame resistance, then the fabric exhibits good flame protection, but the durability and strength of the fabric are reduced
Solution Approach 1:
The patent uses composite materials by blending inherently flame-resistant fibers (aramid, modacrylic, or FR cotton) with nylon fibers. This allows the fabric to maintain flame resistance through the FR fibers while gaining durability from the nylon component, thus resolving the contradiction between flame resistance and durability.
3Strength
If high percentages of nylon are incorporated into fiber blends to improve durability, then the fabric strength increases, but the flame resistance of the fabric deteriorates
Solution Approach 1:
The patent applies composite materials by creating balanced fiber blends where nylon (providing strength) is combined with inherently flame-resistant fibers (providing flame protection). The synergistic effect of this composite structure allows the fabric to achieve both high breaking strength and adequate flame resistance, resolving the contradiction between these two properties.
Data Source
AI summary
Flame resistant fabrics formed with fiber blends that provide the requisite flame and thermal protection but that have improved durability. In some embodiments this is accomplished with the use of fiber blends that include relatively large percentages of FR nylon fibers in combination with cellulosic and inherently flame resistant fibers.