alum acetate Archives - Botanical Colors

The Dogwood Dyer: Dyeing with Thanksgiving Leftovers!

The Dogwood Dyer knows food waste and is a master at turning what most would throw away, into things of beauty. We asked Liz Spencer, the driving force behind The Dogwood Dyer, if she could put together a how-to for us using onion skins. She came back to us with this Dyeing with Thanksgiving Leftovers: An Artful Approach to Onion Skins tutorial.If you follow Liz, you know she offers an amazing subscription called A Year In Natural Dyes. This month it’s all about food waste and what you see below is just the tip of the iceberg! Sign up to … Read more

MORDANT MONDAY: Using Alum Sulfate For Plant & Protein Fibers?

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 confused about the different types of aluminum mordants. I want to do some dyeing of fabric (silk, cotton) and also some wool. Do I need to use different aluminum mordants for these different fibers? I was told that I needed aluminum acetate for plant fibers and aluminum sulfate for protein fibers. Is that true? I have alum sulfate and would love to use it for both if that is workable. KATHY ANSWERED: Mordanting provides lots of … Read more

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: Post-Mordanting With Iron + Preferred Method For Protein

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 recently purchased Ceriops Tagal Liquid Dye and have used it once already, I love it!! I am looking at your site and it says post-mordanting with iron to alter the color but I can’t seem to find what color it will produce. Does it result in a darker almost black shade like walnut would? KATHY ANSWERED: Ceriops creates a very dark chocolate shade when immersed in an iron rich mud solution (check out this link from Threads of … Read more

Q & A: Round Up of Scouring + Mordanting 101

Mordanting and scouring should be at the top of your things-to-do list before natural dyeing. Botanical Colors Founder Kathy Hattori recently took on as many questions as was humanly possible to clarify the processes. Before reading, also please see our How-To Scour and How-To Mordant pages. Scouring Questions If I use untreated and unbleached fabric, is it a must to scour the fabric or is washing it enough? If you mean by “untreated” that it has never been scoured, then you should scour. If untreated and unbleached means it is also prepared for dyeing (PFD or RFD), then you can … Read more

How To Dye With Marigold Flowers

Ever wondered how to dye with marigold flowers? The humble marigold makes a beautiful and easy color that captures summer even when the weather is cold and gray. They brighten flower borders and are a companion plant in organic gardening. Marigold (Tagetes erecta) is native to Central America. Shop organically grown marigold flowers here. The Aztecs used it as a flavoring ingredient for cacao. In Mexico, marigolds are also referred to as “Flor de Muertos” (Flowers of the Dead) and used in the Dia de los Muertos festivals and ceremonies. The deeply scented and brightly colored flower is believed to … Read more