We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email questions@botanicalcolors.com 2 light indigo dips on mordanted silk before immersing in exhaust dye baths to make pastels YOU ASKED: My question involves the processes of indigo dyeing when combined with other plant dyes that have been mordanted with aluminum acetate. My understanding is that citric acid discharges the mordant and also neutralizes the alkalinity of ind...| Botanical Colors