I have some silk yarn that I'm going to use for a friend's birthday gift. However, the dye job on it made it kind of crunchy. So I did some searching on the internet and found this product, Milsoft, and how to use it (about half-way down the tutorial, there are notes about softening silk).
So here we go:
And it's *much* softer, very worth the investment in the Milsoft.