You Asked, Kathy Answered: Going Grassroots With Tannins

We get lots of emails from customers about challenges with dyeing and needing Botanical Colors’ President Kathy Hattori’s help. Why not share the learning so we can all benefit? From our inboxes to you, it’s simple: You Asked, Kathy Answered. Email questions@botanicalcolors with your plea for help! YOU ASKED: I want to create gray on cellulose by using an oak gall tannin followed by an iron modifier; my question is should I rinse the tannin before modifying? KATHY ANSWERED: According to Catharine Ellis, the tannin treatment is not super strongly bonded to the fiber until the alum is added, so … Read more