I bought a handmade saree (Indian wear) in a small Indian village in 2009. It is dark grey, bright pink & purple. I'd like to use it as a bed runner. But, how do I wash it without the colours running?? It's stiff/rigid because it's been sat folded up since it was made in late 2008, so it needs softening. Should I just chuck it in a bucket of cold water? It's so pretty.