Ok the next day, squeeze the water from the skeins/roving. It stinks !!
Next lay your supply's out on plastic wrap, itprotects the workspace and helps you to wrap it up but I'll get to that in a bit. Never mind my grungy workstation.
now to the fun part. Paint your roving/yarn. Don't soak it, just wet it enough that it goes through all the layers.
Now put this in a microwave safe bowl. Wrap completely in the plastic wrap, microwave for 5 minutes. If the dye isn't all exhausted don't freak out. wrap it up again toss it in for 3 minutes more.