Mostly in fabric painting instructions I've seen advice not to use handpainted fabric for quilts that will be used (and washed).
Now I'm aware paint isn't dye and kind of 'sits on top of the fibre', so I'm assuming it won't stay on for hundreds of washings and centuries and centuries... But I'm kind of thinking in lifetime terms, not heirlooms and museums and all that.
So I'm wondering - for those of you who paint, have you used your fabric in lap or bed quilts? How did it hold up to use, how did it age if you washed it occasionally?