I have. Same technique I usually use: cold water, Dr Bronner's, don't let it soak. Iron with a warm iron when it dries. Excellent results.
I was just about to try hand washing my scarves with Dr. Bronner after having great results using it for silk blouses in the machine, but I have now noticed a ketchup stain on a scarf I haven't worn in 6 months.. It is my favourite scarf, and has many colourful and tiny details, but the area this concerns is black. I was hoping that applying a drop of Dr. Bronner directly on the spot would be good for getting it out, but I have absolutely no experience in removing stains from precious H scarfs. The scarf in question is a couple of decades old. Does anyone know how Dr. Bronner might be able to deal with the vinegar in this ketchup stain, without leaving white traces behind? I've been looking at other means of stain removal, but with a scarf of a certain age and this dark, I'm paranoid about things being too strong for the dye. Seeing as the stain has aged by now I'm off course very eager to find something effective too. Any advice is appreciated.