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MORDANT MONDAY: Weighing Fabric For Mordanting

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 been weighing fabric before and after mordanting lately and noticed that the WOF changes slightly. For the recipes on the site, which weight is relevant for WOF? Post-scour, pre-mordant OR post-scour, post-mordant? KATHY ANSWERED: Our practice is to weigh the fabric prior to scouring and mordanting, so before we start any process on the fabrics. It is the first thing that we do so we can calculate the rest of our formulas during the dye process. YOU … Read more

Mordant Monday: Chestnut, Fustic, Iron and Indigo

This week’s Mordant Monday focuses on Chestnut. We used Chestnut extract in our gradation and absolutely loved the combination of Chestnut, Fustic and Iron with Indigo. This gradation is slightly different than our previous experiments. This time I did not overdye with a warm shade like Madder, to get corals and pinks. I wanted to focus on green and blue. Like previous examples, when a tannin is combined with other colors you can get exciting mixes and beautiful color blends that harmonize and are perfect for patchwork, creating gradations and stitching. If you are a yarn person, many of these … Read more

Mordant Monday: Ceriops Tagal (No Mordant Required!)

Today, we’re taking a look at Ceriops Tagal, a “red” tannin from Indonesia, and a color that is rich in history and traditional use. At Botanical Colors, we recognize that the mangrove species is threatened due to widespread clearing of mangrove forests for timber, fish farming and other coastal activities. Ceriops Tagal is a product derived from tree bark that would otherwise be discarded. It is harvested and produced under conservation guidelines from the Forest Stewardship Council and provides income for remote villages. Indonesia is home to some of the largest mangrove forests in the world, and the Indonesian government … Read more

Mordant Monday: R U Mordant Curious?

For Mordant Monday, we answer your Mordant Questions and dive into everyone’s favorite topic: MORDANTS. Are you Mordant Curious? I received a great question about the mordants we carry. Like, you have so many. What is the difference? Does it really matter? Having a variety of mordant choices allows you as an artist to consider your materials before you start creating. For example: if you are dyeing a cellulose fabric, you can use aluminum acetate, or you can use a tannin pre-mordant and then apply aluminum sulfate as the mordant. They will give you different results. We’ve created a table … Read more

Mordant Monday: Walnut, Madder, Iron and Indigo

Black Walnut Juglans nigra is one of our most interesting tannins and it’s a color that’s native to the North American continent. The entire tree contains color but it is in the green hulls that we find a strong concentration of dark tannins yield light beige to golden brown on cellulose. On wool, black walnut really shines and makes a rich brown shade. Walnut Hull Powder from black walnut (Juglans nigra) is a common source of brown dye throughout North America. The fleshy hulls are full of tannin, juglone and other pigments and are the primary source of the dye. … Read more

Mordant Monday: Tannins and Teal, Osage Edition

We have a new type of Mordant Monday for you today where we dive into the world of Tannins! We want to show you how to use our tannins to mordant, either in combination with aluminum sulfate, to get rich long lasting and substantive color, or to use as a base for color mixing. We will explore our tannins over the next few weeks. In the photo pictured above we dyed our hemp towel irregulars first in an Indigo Henna Vat. We then used a 15% WOF bath of our osage saw dust to get this beautiful hue. Osage orange … Read more

MORDANT MONDAY: A Plant-Based Option For Mordanting?

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 trying to make my natural dye practice completely plant-based, which also includes my mordant. I’ve used sumac and different nuts in the fall, tea and avocado pits, but do you sell a plant-based mordant? I still want to get great color and not all plant-based “mordants” are getting me to where I want to be. KATHY ANSWERED: We do! Symplocos is an exciting alternative that will give you the mordanting power as your base. We are … Read more

MORDANT MONDAY: Iron + Mordant=A “Weird Feeling”

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 bought iron from you guys to use to dye some wool fabric. I used it in a dye bath with coffee. I used your alum to mordant prior to dyeing in advance. I’m concerned I let the fabric sit too long in the coffee + iron bath because it now has a sort of weird feeling to it, almost a coating on it. Curious if there is a way to remedy this? KATHY ANSWERED: Sometimes too … Read more

MORDANT MONDAY: Scouring & Mordanting Raw Silk

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 was wondering what is the best way to scour or mordant raw silk? I know you have on your site that info for silk but just wanted to ask if that applied the same for raw silk as well. KATHY ANSWERED: Raw silk, also referred to as silk noil, is the carded short waste pieces from silk reeling that are carded and spun before weaving or knitting. The fiber is medium weight, textured, matte and can … Read more

MORDANT MONDAY: Will Mordant Affect Indigo Dyeing?

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 use aluminum triformate as my mordant for cellulose and silk. I am planning to dye linen with weld and was told that I didn’t need to use a tannin before dyeing if using potassium triformate.If I do need to use a tannin and have already mordanted the linen, do I go back and use tannin and remordant? KATHY ANSWERED: I have concentrated on using a tannin pretreat with aluminum sulfate and haven’t done so as frequently … Read more