UV-Resistant Flame-Resistant Fabrics for Strength and Color Retention
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Solution Overview
Problem
Protective garments made from high-strength, flame-resistant fabrics experience significant strength loss and color fading due to ultraviolet (UV) exposure, compromising their protective capabilities and increasing replacement costs.
Innovation Solution
Incorporating UV-resistant additives such as UV light absorbers and hindered amine light stabilizers into the fibers of the fabrics during the dyeing process, which can be blended with inherently flame-resistant fibers like aramid, polybenzoxazole, or polybenzimidazole, to enhance resistance to UV radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-strength inherently flame resistant fabrics are used, then protective capability is improved, but UV resistance deteriorates
Solution Approach 1:
The patent applies composite materials by combining inherently flame-resistant fibers (such as aramid, polybenzoxazole, or polybenzimidazole) with UV-resistant additives to create a fabric that possesses both flame resistance and UV resistance. This composite structure allows the fabric to maintain protective capability while gaining resistance to ultraviolet radiation, thereby resolving the contradiction between protective capability and UV resistance.
2Object-affected harmful factors
If UV-resistant additives are incorporated into fibers, then UV resistance is improved, but fabric strength may deteriorate
Solution Approach 1:
The patent applies parameter changes by carefully controlling the concentration and type of UV-resistant additives incorporated into the fibers during the dyeing process. By optimizing these parameters, the fabric achieves sufficient UV resistance while maintaining its inherent strength properties. The process involves adjusting additive concentrations and processing conditions to balance UV protection with strength retention.
3Reliability
If protective garments are worn outdoors for extended periods, then protective function is maintained, but fabric strength deteriorates
Solution Approach 1:
The patent applies preliminary action by incorporating UV-resistant additives into the fabric during the manufacturing and dyeing processes, before the garment is put into service. This preemptive measure ensures that the fabric is pre-protected against UV degradation, allowing it to maintain its strength and protective function even after extended outdoor wear. The protective properties are built-in from the outset rather than added later.
4Reliability
If UV exposure continues over time, then protective capability is maintained, but colorfastness deteriorates
Solution Approach 1:
The patent applies the intermediary principle by using UV-resistant additives as mediators that absorb or block ultraviolet radiation before it can reach and degrade the fabric dyes and colorants. These additives act as a protective intermediary layer within the fiber structure, shielding the color-bearing components from UV damage while allowing the fabric to maintain its protective function and color appearance over time.
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 incorporation of UV-resistant additives significantly improves fabric strength retention and colorfastness, reducing the adverse effects of UV exposure and maintaining the garments' protective and aesthetic qualities.
Implementation Method 1
Incorporating UV-resistant additives such as UV light absorbers and hindered amine light stabilizers into the fibers of the fabrics
Implementation Method 2
the strength of these fabrics can be compromised through exposure to ultraviolet (UV) rays
Data Source
Figure 1~2
AI summary
Embodiments of the invention can provide a protective fabric includes a plurality of inherently flame resistant fibers, and at least one ultraviolet-resistant additive incorporated into the inherently flame resistant fibers through a dye process using a carrier, wherein the ultraviolet-resistant additive significantly increases at least one of the strength retention and the colorfastness of the fabric when exposed to ultraviolet radiation.