Or fold them in thirds and hang them from a padded coat hanger. Ironing drives wax into the fibers. Use an ice cube to harden, then scrape with a dull knife. If the dye leaves a stain, place between paper towels and press with a warm iron, then treat with prewash and launder. Try a detergent or prewash with enzymes.
Heat sets stains, so soak in cold water first, particularly if the stain has blood.
For red wine, blot, sprinkle with white wine, blot, then launder. Remember this When polishing silver, forget that trick about putting it in a pan with foil. Those metal treatments are harsh. They remove the patina and can cause pitting.