You searched for tannins - Page 2 of 15

MORDANT MONDAY: Will Mordant Wash Out Without 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: I have been contacting a well-published natural dyer and they say that the aluminum mordants will be washed out of the fiber without pre-treatment with tannin. Do you have any theory why the triformate is able to mordant without a tannin ? Have you got any data on the wash and light fastness of the triformate on cotton? KATHY ANSWERED: Alum on cellulose performs better with a tannin pre-treatment. However, we have not noticed that the mordant … Read more

MORDANT MONDAY: Tannin Mordanting Cotton & Stiff Wool

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 getting ready to dye vintage cotton runners. I have aluminum acetate, which tannin powder would you recommend? Weight of fiber protocol?I have a bag of wool roving and also trying to figure out the best way to handle. Last time I ran it through a dye bath it dried dull and stiffish. What do I need to do next? KATHY ANSWERED: The choice of which tannin is really up to your preference. We like to use … Read more

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

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: If It’s Tannin Rich Do You Need Mordant?

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’ve read that natural dye materials with a high tannin level don’t need a mordant to dye wool. I have a rain barrel that collects run-off from the roof. The roof is under a huge maple tree, which over the course of the seasons, drops flower clusters, seeds, leaves and sticks onto the roof. This turns the runoff water in the rain barrel a brownish color. I believe this is due to the tannin in these items? … Read more

Online Workshop RECORDING: BACK TO BLACK – Tannin Blacks with Cara Marie Piazza

Have you been interested in learning how to experiment with tannins to make tannin blacks and unlock the elusive secrets to make charcoal, deep black and silvery gray? How about learning the path to create the inkiest navy blues? These exciting colors are the unlikely combination of rather tame neutral shades called tannins that are found in many plants. On their own they make tan, beige, sometimes brown or other quiet hues, but when combined with other dyes like indigo or iron, they really show off! Calm, understated cream shades explode into purple and black with the simple addition of … Read more

MORDANT MONDAY: Do I Need To Mordant When Using Liquid 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: I am using your liquid tannin on cotton. Beyond scouring, I was wondering if it is sufficient to use liquid tannin (on cotton t-shirts) as a mordant before using the other liquid dyes? Or, do I need to mordant cottons at all when using these liquids? Do I need to alum them as well? I have aluminum triformate currently so was thinking to use this. KATHY ANSWERED: I hope I’m answering your question here. If you want to use Liquid … Read more

Tara Powder

Tara is the Quecha word for the shrubby tree Caesalpinia tinctoria, native to South America. Tara seeds are used as a food grade thickener and the pods have traditional medicinal uses. The pods are also the source of the dye. Tara powder is widely used as a light-colored tannin in the leather industry. It has a high gallic acid tannin content between 30 and 50% tannins, making it ideal for mordanting. Like many high tannin dyes, it has a pleasant, tea-like aroma. We like to use tara for gray and purple by adding iron to the dye pot. For more … Read more

FEEDBACK FRIDAY: This Week in Natural Dye Questions

This week: Interesting questions on pre and post-treatments for color and lightfastness

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