You can use a variety of ink stain removers, such as butter, cornstarch, milk, toothpaste, vinegar etc. Let's take butter for instance - If you get an ink stain on light colored vinyl like some book bags, totes or a purse, rub the stain with butter and sit it in a sunny place - preferably out of doors for a couple of days. The oil in the butter will soften the stain, then the combination of salt and sunlight works wonders on drawing the ink stain out. You might try this on other fabrics as well, such as cotton or denims. When you launder the material, work liquid detergent into the oil left by the butter.
Hope that helps!
