Same was washing, NEVER hot. Rayon is never supposed to go in the dryer. In additional to shrinking, it will also wrinkle the material even more than normal. If you can't hang dry somewhere outdoors or in the house, then use the tumble dry with NO HEAT. Again, I mean absolutely no heat. The low setting does not count, it is still too hot. If using a machine to dry, it's going to take a while and quite a bit of electricity.