Anyhow, this reminded me of the tshirt. You know how I got all these yellow stains on it? Well I let it soak in some stain removal product for a while before washing it. Unfortunately, I managed to put it in with the jeans instead of the less coloured stuff. Result: no yellow stains, but the whole shirt was kinda grey.
Yesterday, I then let it soak again before putting it in with another, less colourful, load. And voila, it looks white again! The writing faded slightly though. I know it wasn't solid black from the beginning, but I'm not sure what these chemicals have done to it either. But hey it's still there, and on a white shirt. So there! lol
