tannins

You Asked, Kathy Answered: Making Oak Tannin Powder

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 would like to use oak galls for a tannin bath, and we live in an oak forest so I have a large bag full! Can you explain how to go about making my own powdered oak tannin powder. I am hoping it could be as simple as just putting the … Read more

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

Video For FEEDBACK FRIDAY: Tannin Dyeing With Sari Monroy Solis

Last week we had a special presentation of FEEDBACK FRIDAY, this time with Sari Monroy Solis. Sari is a Mayan Kaqchikel backstrap weaver,natural dyer, and fiber enthusiast. Sari will be zooming in live from Guatemala and will be doing natural dyeing with local coffee fruits and other foraged tannins. She has been practicing tannin dyeing with foraged materials in Coastal California and is excited to share a little about the work she does with her elders in San Antonio Aguas Calientes, Guatemala. Watch the recording below. Sari’s Instagram @theblueweaver What is she excited about right now? “One, sharing my weaving … Read more

MORDANT MONDAY: Exhausted Mordant Baths + Sumac Tannin

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] YOU ASKED: After watching your video about aluminum triformate I decided to order it and started using it. I work with large quantities and large pieces, so I prepared a bucket with 50 liters of water and 500 grams of aluminum triformate. I used it to mordant approximately 5 kg of yarn/pieces. The water was white at the beginning, I suppose because I just mixed the powder, but after the first load, it was just like regular water. I … Read more

MORDANT MONDAY: Mixing Mordants

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 just trying out your new cold mordant aluminum triformate and have mordanted wool, bamboo and cotton After applying tannin to the cellulose I dropped it into the aluminum triformate together with the wool, and the water changed to green. I guess it’s due to the connection between tannin and aluminum? But am I doing something wrong and are the textiles fine for dyeing now? I want to save the mordant bath for further use but now … Read more

acorns and a spoon of tan powder on pale fabrics

MORDANT MONDAY: Which Plants Need Mordant?

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] I keep getting mixed answers from people about dyeing with plants from my yard and whether I need to mordant or not when using them. Advice? I think some of the confusion arises over what plant we’re talking about. Many plants contain high levels of tannins and these can be used to mordant and dye in one step, rather than using the traditional mordant method with aluminum sulfate or aluminum acetate. Traditional tannin mordants include: Common garden and kitchen … Read more

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