MORDANT MONDAY: How Do You Get That Really Red Cochineal?

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] YOU ASKED: I’m sending a picture of cotton yarn dyed in cochineal and an exhaust bath of madder. I mordanted this with aluminum triformate but have gotten the same bad results using tannin, then alum with a bit of soda ash. I scoured this yarn very carefully and for at least an hour (boiling). Is there some special trick to dying cotton with cochineal? I get beautiful results with wool. KATHY ANSWERED: From what I can see in the … Read more