I have a perfectly white cotton flat sheet that has several small stains ranging from dark orange to light grey. The dark orange ones may even be small burn marks or rust stains.
I have tried everything to remove those stains yet nothing has worked, including Dry Cleaner Solvent. They've fully set in.
When I realized the stains weren't going to come off, I decided to just try to turn the stains white and make them invisible, but I have been completely unsuccessful.
I've tried pure bleach, hydrogen peroxide (3%), lemon juice and salt, you name it. I even tried mixing bleach with the hydrogen peroxide, and ammonia with hydrogen peroxide, but nothing is working (don't worry, I haven't mixed bleach with ammonia). I even soaked the stains for a 36 hours in (initially) boiling water with plenty of Oxygen Bleach and nothing.
So what is the absolute most effective way of removing all color from a stain?
There has to be a way and I'm willing to try anything!
P.S. If nothing works, I will actually try dabbing white paint into the small stains to make them invisible.