Jan, can you find a product called "Zout" in the laundry aisle. It's in a thick liquid form. I used this on a red and white block that bled while I was steam pressing. And yes it had been pre washed and dried. Apply it to the stained area and any other susceptible spots. Wash it, see how it looks, and then dry it. Best of luck.
Hope all's going okay for QNS.