Whenever we go to a quilt show or shop, we are looking for new (or new to us) products to try. One thing we bought last fall at the Sewing and Quilt Expo was a resist product made by Jacquard. According to their website, "Resist is used to draw the edge of an image on silk, stopping the flow of dye at the resist lines. Jacquard Products manufactures 3 lines of resists." We purchased a colorless, water-based resist, not with intention of using it on silk, but to try on the cottons we most frequently work with.
leaf images (available in the Etsy shop) on the fabric and allowed it to dry.
Dye-Na-Flow paint in burnt umber and red and hung it on the line to dry.