MORDANT MONDAY: Aluminum Acetate + Calcium Carbonate Before 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’m confused. Your directions for mordanting with aluminum acetate say to mordant, place fibers in dye pot, then . . . do the calcium carbonate bath then dye – what is the correct order? “Remove, rinse lightly and proceed to dyeing. Calcium carbonate can shift dye colors due to its higher pH, so we like to rinse it prior to use.” KATHY ANSWERED: You mordant with aluminum acetate, and when it is done, remove from the aluminum … Read more

MORDANT MONDAY: Color Bleeding + Pickling Vegetables With Aluminum Acetate?

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 new to dyeing and am hoping you can provide some knowledge. I have mordanted and dyed a cotton sheet with oak gall, cutch and ferrous sulfate. I sprinkled citric acid to remove some color while the fabric was  drying. If I now bathe the fabric in calcium carbonate will the color change? If so in what way? Currently the dye is coming off on my hands when I handle the fabric. Should I iron? Should … Read more

MORDANT MONDAY: Can A Cold Water Mordant Deepen Colors?

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 some aluminum triformate from you all.  I tried the aluminum triformate using it at 10% WOF hoping to get the strongest results possible. So far I have only the aluminum sulfate to compare it to.  It seems the aluminum sulfate samples are much darker, especially the reds, although I am not finished with all the colors.   I am wondering if this is typically the case? Is there anything you would suggest to coax … 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

MORDANT MONDAY: Do I Need To Re-Mordant To Eco Print?

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 scoured the internet trying to find an answer to this question, with no luck other than to ask you 🙂 I am dyeing my fabric (scoured and mordanted with tara tannin, aluminum acetate, chalk bath) and want to eco print flowers onto the fabric afterwards. Do I re-mordant or is the previous mordant still viable after the fabric has been dyed as the water reaches 180 degrees. I use your plant extracts to dye and … Read more

MORDANT MONDAY: How Is Gall Nut Extract Different Than Ground?

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] YOU ASKED: If I am using whole oak galls as a mordant, how is the gall nut extract used differently than the ground oak galls? Does the ground have to be heated for a certain amount of time or can it be added directly to hot water? KATHY ANSWERED: Gall nut extract, which we call gallo-tannin, is dissolved in near boiling hot water and then added to the dye pot or the mordant tub (it is a low -temperature mordant, … Read more

MORDANT MONDAY: How Do You Get That Really Red 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’m sending a picture of cotton yarn dyed in cochineal and an exhaust bath of madder. I mordanted this with aluminum triformate but have gotten the same bad results using tannin, then alum with a bit of soda ash. I scoured this yarn very carefully and for at least an hour (boiling). Is there some special trick to dying cotton with cochineal? I get beautiful results with wool. KATHY ANSWERED: From what I can see in the … 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

MORDANT MONDAY: Is Aluminum Acetate A Better Mordant Than Aluminum Sulfate?

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] YOU ASKED: For plant fibers I was taught to use aluminum acetate for the mordant and then rinse in calcium carbonate to neutralize the acetate. That extra step is minor, but I’m wondering whether aluminum acetate is a better mordant than aluminum sulfate. It sure is more expensive! KATHY ANSWERED: Yes, that is the mordant process that we use as well. I don’t think that aluminum acetate is necessarily a better mordant, but it does have some strengths over … 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