L.K.
The best way to take ink stains out of clothing, believe it or not, is to use hair spray! Have a paper towel handy and spray the spot with hair spray and blot with the paper towel. As the ink starts to "thin out" it may spread a little, but keep spraying and blotting as much as you can, then put it in the washing machine. This works best on cotton and cotton and polyester -- it would depend on the fabric as to how it responds. I wouldn't recommend doing this on acrylic or silk, for instance, as it makes the fabric stiff and would take the shine off.