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MORDANT MONDAY: To Mordant Or Not To Mordant + Disposing Of Mordant Baths

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] What is Mordanting? Mordanting is the most important process of preparing fibers to accept color. Using a mordant helps to ensure the most durable and long-lasting colors. With the exception of indigo (as a vat dye, it does not require a mordant), this is not an optional step. However, there are many different mordants you can use. Deciding which mordant to use comes down to the types of fibers you want to dye and how much time or energy … Read more

Mordanted Hemp-Cotton Towel Eco-Print Kit

We mordanted some very vintage hemp-cotton towels so you can get right to the fun part: dyeing! These towels were mordanted with oak gall tannin and aluminum sulfate and are ready for bundle dyeing. We supply marigold, logwood and onion skins with the towels. Sprinkle, roll, wrap and steam and you are done! Follow our easy instructions below and make a hostess gift or brighten your kitchen. The towels are a silvery taupe shade. Some have subtle marks and stains as the fabric is unused but over 50 years old and these will blend right in once the towel is … 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

MORDANT MONDAY: Whey As A 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 started reading India Flint’s book Eco Colour. She mentioned that whey could be used as a mordant but didn’t say how. I do make cheese on occasion and am always looking for something to do with the whey. Have you ever used it? If so, how? KATHY ANSWERED: Whey is usually acidic and contains protein and minerals. It might be considered one of those ingredients that helps dye molecules attract to fibers, like casein (milk protein), … Read more

MORDANT MONDAY: Is It The Mordant Or The Cochineal?

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 a junior Fashion Design student. I am currently working on a project where I am trying to dye cotton yarn with cochineal. I have followed the cochineal instructions on trying to achieve a bright red color however when I take out the yarn from the dye water it begins to turn black. What should I do in order to keep the bright red color on the yarn? KATHY ANSWERED: Can you take a picture of … Read more

MORDANT MONDAY: Mordanting To Make Green

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 just ordered both logwood and weld and want to get purple and green on wool yarn based on this information on your site. Do I need to do some pre-mordanting with alum? The website has the intriguing recommendation to use a bit of soda ash with neutral water, to get a better purple. Does this mean an acid pre-mordant would not be advised? It’s hand spun wool for warp so would be better slightly acidic rather than … Read more

MORDANT MONDAY: Post-Mordant Scouring?

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] YOU ASKED: Can you store and then reuse symplocos mordant, the way you can alum mordants? If it can be stored, do you need refrigerate it or add cloves to keep it from going off, as you must with plant based dyes? KATHY ANSWERED: Symplocos baths may be reused several times but it does contain plant matter and will probably start to ferment if left for long periods of time, like over 2 weeks in a warm environment. You … Read more

MORDANT MONDAY: Is Soy Milk a 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 am working with earth pigments specifically clay. I am trying to wrap my head around the use of soy as a binder/mordant. Is a coating of soy necessary as an initial application? Then using pigment. Mixed with soy as design than a coating of soy over the whole dried material? Or what?? KATHY ANSWERED: Soy is used as a binder, a “glue” really, to attach clay and earth pigments to a fabric surface. It is not … Read more

MORDANT MONDAY: Post-Mordanting Cotton

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] I recently used Logwood and cochineal on old cotton sheets as blankets to put over watercolor paper when eco printing books. The cotton blankets came out so amazing I decided to sew them together and make a kimono. I had no intention of making a garment or I would have taken more pre-care with the fabric. Since these were very old sheets, I didn’t scour as I’ve laundered them for literally years. I did not mordant either. Anyway, here’s … Read more

MORDANT MONDAY: What Mordant For Viscose?

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 received some organic bamboo pillowcases that I would like to bundle dye. Per their website they are crafted from 100% viscose from organically-grown bamboo. Does viscose take color? If so, what is the best mordant to use to get the most vibrant and long-lasting bundle dyeing color? KATHY ANSWERED: Natural dyes work well with viscose, which is the name typically used for fibers extruded from cellulose material, such as bamboo and wood products using a chemical process. It’s … Read more