Vinegar. White vinegar is a great stain remover and is also how to get ink stains out of jeans.
How do you remove a tattoo from a shirt?
Moisten a cotton swab or cotton ball with hairspray and dab the stain with it. Rub the moistened fabric together gently. Apply a prewash stain remover to the ink stain. Rub the fabric together again and let it sit for 20 minutes.
How do you get old ink stains out of clothes?
Place a paper towel under the stain and sponge it with rubbing alcohol. Use an eyedropper to apply alcohol directly onto the stain or, for a larger spot, pour the alcohol into a small dish, immerse the stained area and soak for 15 minutes. The ink should begin to dissolve almost immediately.