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: Cloudy Mordant & Eco Printing Fabric

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 think I purchased the wrong mordant, according to the chart on your website.  I have a cotton tea towel and I purchased aluminum potassium sulfate. I plan on eco printing some flowers on it, do I need to purchase a different mordant? Also, this is my first time! KATHY ANSWERED: You can also use aluminum potassium sulfate on cellulose fibers for eco printing.  The best technique is to try to traditional tannin-alum mordant which uses aluminum … Read more

wheat bran mordant assist

MORDANT MONDAY: Fixatives & Funky Water

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 used your cold water Aluminum Triformate mordant. I dissolved it in cold water and poured it into the cold water tub. It was really cloudy when I added the fabric. Now the mordant has settled on the bottom of the pot. Is that right? If not, is there a way to rectify it. KATHY ANSWERED: If there are a few grains of mordant at the bottom, it’s not a problem.  If there’s a layer of mordant, … Read more

MORDANT MONDAY: Tips On Temps For Mordanting 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: Does your wool gauze need to be scoured before I mordant it? KATHY ANSWERED: I do not scour the wool gauze as it’s so sheer and fine and it seems pretty clean. It takes the dyes exceptionally well with a mordant only. YOU ASKED: Which type of mordanting do you think ensures color fastness? KATHY ANSWERED: Color fastness is a function of the dyestuff and the mordant, not the mordant alone. If you dye a mordanted fabric … Read more

MORDANT MONDAY: Non-Toxic Mordants + Brightening Color

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 sure you have received this question a bunch but I am curious, is the new cold water mordant Aluminum Triformate you are selling considered to be just as good as Aluminum Potassium Sulfate?  Is it also considered to be just as “non toxic” as far as natural mordants go? KATHY ANSWERED: Aluminum triformate seems to work as reliably and well as Aluminum Potassium Sulfate. It is more acidic than APS, so we always rinse after … Read more

mordant monday logwood

MORDANT MONDAY: Moody Hues In Black & Blue

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 pleased to see the color range of your sappanwood extract on your blog since those blue-violet to gray hues are what I’m trying to achieve. You compare the color fastness to logwood, and I know that logwood doesn’t take well to cotton. Will sappanwood work on a 85% cotton 15% cashmere blend yarn and what should I mordant with? KATHY ANSWERED: You can mordant with tannin and aluminum sulfate or aluminum triformate and symplocos to … 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: Silk, Cashmere + Heat

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 several cashmere sweaters that are the most boring colors ever and I’d love to try over-dyeing. I have Orvis paste to scour with but wanted to check that the 180 degree hold for 30 minutes would also work for cashmere – I see sheep and goats on the website answer about scouring so I am assuming yes, but there is this little question in the back of my head – email to the experts it … Read more

MORDANT MONDAY: Alum Sulfate & Acid-Loving Ornamentals?

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

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