I've removed ink from all kinds of fabrics - including beige-colored satin - with Lava soap and a soft toothbrush. I just make a paste of Lava & cold water and gently rub it in with the toothbrush, rinsing w/cold water and repeating the process until the stain is gone.
I accidentally discovered that Lava is a GREAT stain pre-treater when my last baby had a poop explosion all over her white bloomers. I was rinsing them in the sink and decided to try rubbing some Lava on them - and it got all traces of the stain out. I've even been able to remove some old "set" stains with the stuff, and it has never damaged anything. Now I never use anything else!