The answer is no. The fading of braided line does not weaken its breaking strength. The actual fact why braided line loses its color is because it is made of tightly woven gel spun fibers and the color is then injected into the fibers. Because the gel spun fibers are so tightly woven, it is really difficult for the colored dye to penetrate the braid, which is why its color diminishes rapidly.
There are only two manufacturers of these gel-spun fibers (polyethylene) which are called Spectra and Dyneema. They are both the same. Spectra is made by Honeywell and Dyneema is made by a dutch company called DSM. Once spun, the yarns are white and have to be dyed. There are some variations in the process by which they are made, making small differences in performance, flexibility or the way the color is dyed in. Some of these processes make the penetration of dye very difficult, which means resistance of the material's color to fading out of the fibers.
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