I've got this 100% woolen scarf you can see in the picture. I'm sorry for the bad quality picture. My bf washed it in the washing machine while I was away. He used the hand washing program and with cold water 20C and the black got mixed with orange, not everywhere, but in some spots around the lining as you can see in the second picture I've uploaded. Also the colours all over the scarf lost their vibrancy from mixing with the black. So I took it to the dry cleaner and now it seems that it's mostly recovered everywhere. The colours are vibrant again, but the orange lining although it is better than before, it still has black spots. Is there anything I can do to fix this? I've heard about colour dyeing do you think that might work?
Try to get your hands on some Carbona Color Run Remover! It works for this.
Rit has a dye remover
Seeing how much effort you are doing to find a good solution I know you must really like this scarf. The fabric being wool and 2 really vibrant colors really narrows the solutions as I am sure you have found already.
I don't think so. Just make sure to use very cold water. Test a small area, first.