Flush immediately with cold water then work in liquid detergent from the back of the stain. rinse with cold water and remove any residue by treating with lemon juice and rinsing with household ammonia. Rinse thoroughly and was in the usual way. Unwashables Ink, once dried requires an acid to remove. For white fabrics wet thoroughly with cold water then sponge with a solution of oxalic acid and warm water. Rinse well then wash in the usual way.