Discolour discolored white laundry
I had a beautiful tablecloth with unfortunately blue discoloration on it. I did not know what caused these stains because the ceiling was a flea market find.
When all the previously read tips (from Geschirrspültabs to Entfärber for white laundry) brought nothing more, I came across by chance on a great decolorizing agent!
ATTENTION: it is only suitable for white laundry, colored laundry is bleached heavily!
From Sagrotan there is a spray, that is "mold-free", I sprayed on just before the wash and then immediately washed with detergent. Way were all the spots! I actually wanted to remove foxing from another piece of laundry, which was (unfortunately) colorful. Due to the strong bleaching effect that I unfortunately had to discover after the laundry, I thought that this could be the salvation of my old tablecloth - so it was!
Today I tried this again with a fencing suit, which had unfortunately gotten from the sword rust stains that did not go out on normal wash paths - again gone! That was the impulse for me to post this tip, as I had searched unsuccessfully in this forum.
Please do not forget: use only for white laundry! All other colors get clear traces of bleaching!
I wish you success!