|I know some of you like to use the dritz fabric markers. There is a blue one and a two sided one (with disappearing ink and the blue water soluble) Well, I found out that the blue marker does not like red dyes. There is a chemical reaction with the ink and dye. This is why the mark just won't go away from some fabrics no matter what you do. I had an issue with some broadcloth. I'm sure you have a red or pink garment with just a tiny hint of blue hidden strategically. :-) What do you do? Well a little fabric softener in a spray bottle with water works to get marks out without laundering (and they donít reappear) but I'm not sure about reds, or pinks so, just don't use it when making reds and pinks! I use my white chalk, a pencil or some dried out old soap. I save the blue marker for other colored fabrics.