I've been doing a bit of fabric dying lately. I just love the colors.This past saturday, ASG Los Angeles had a silk dying workshop with Audry Durnan. Everyone had fun.
After the color is added, put your twisted and colored fabric into a zip lock bag and sprinkle with a bit of vinegar and water and let it set for about 5 mins. After your fabric is done "marinating" in the vinegar, take the bag with the fabric and pop it into a microwave oven. Make sure the bag is not completely sealed and it has about 3" of breathing room. Put the microwave on high for 3 mins. Be sure you use a "spare" microwave, and not one for using food. Not sure how safe the dye vapors are for food prep after you're done dying fabric. When the fabric is done "cooking", open the oven and give it a few mins to cool. Take the bag out, and open it all the way and let it cool a bit more. After it is cool enough to handle, take to the sink, cut the ties and bands off, untwist and rinse using cold/cool water.
After it is rinsed and open, wring it in a towel to get a bit more water out and then run an iron over it to set the color a bit more.
Then place it in the sun or someplace to dry. Silk chiffon will dry quick. You are now done and can admire your work and all the beautiful colors!