[pmoriarty]

Bleach will fade color clothes, though, won't it? I have a lot of black clothes and don't want them fading or having white spots from the bleach.

I've been trying to just use vinegar. Hope it helps.

[icebraining]

As far as I know, it not only fades (some) fabrics, but it can also weaken some fabric, even if it's white.

[mtgx]

That's true.

[mrob]

It will fade natural fibers, but with 100% synthetic fabrics the dye or pigment is usually mixed into the plastic before it's turned into fibers. In this case the bleach can only affect a very thin surface layer, which causes no visible color change.