How to spawn silk soft again after wash it? Here is what happen: I hold duvet made of silk that you're...

Here is what happen: I hold duvet made of silk that you're only supposed to dry-clean, not clean up like I did. After wash it the silk became scratchy and tremendously unpleasant to touch. Any ideas how to engineer it soft and "silky" again?
Thanks in credit.
Do you put aside wash up time by...
Answers:    Rewash the duvet with a bit of gooey fabric softener, after put it in the dryer on the "nouns dry" cycle. As long as absolutely no warmth is used, the silk will be fine.

I do this with adjectives my silk products, including my king-sized quilted silk bedspread.

Good luck!