mordant monday Archives - Page 3 of 6

MORDANT MONDAY: Scouring + Mordanting Cashmere

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 some lovely 100% cashmere yarn I’d like to dye before knitting and am scared of ruining it. Should I use the scouring instructions for wool? I’d like to use aluminum acetate as I’m dyeing with cutch and like the pinks this mordant pulls out of this dye. Is this mordant safe for cashmere? If not does aluminum triformate also bring out pinks in cutch? Any cashmere dyeing tips are most appreciated. Thank you! KATHY ANSWERED: … Read more

MORDANT MONDAY: How To Recharge Mordants & Assists

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 mind-bending questions about the mordants that can be refreshed like aluminum acetate, aluminum sulfate and aluminum triformate. Is it different with different mordants? And what happens with the assists like soda ash or cream of tartar, if I put them together with the mordant, do I also need to recharge it as well with 25/50%? KATHY ANSWERED: Typically aluminum sulfate, aluminum potassium sulfate and aluminum acetate are refreshed at 50% and aluminum triformate is refreshed at 10%. … Read more

Looking Back To Look Forward Botanical Colors 2023 Report

I can’t believe it’s the end of 2023. No really, how did we get here?? It seems a blur, a really exciting but challenging-paced year chock full of the ups and downs of a small business. And we are a small business! Many of you think we are a huge company, but did you know our incredible team is 8 employees strong? We pull off big things and work hard but there’s one thing we couldn’t do without. You. For our 2023 look back to look forward, we wanted to tell you how much we grew because of all of … Read more

MORDANT MONDAY: Mordant Making Linen Stiff

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected]. Today we look at linen! YOU ASKED: I am wondering why mordanting with alum might change the feel of the fabric? I dye linen a lot and I haven’t been able to figure out why this happens and how to restore it to its original softness! KATHY ANSWERED: If your fabric is feeling stiff after mordanting, you may be able to restore softness through a gentle tumble in a clothes dryer. If this doesn’t solve the problem, evaluate how … 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: 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: 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: Aluminum Sulfate For Cellulose?

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 realized I purchased aluminum sulfate instead of potassium aluminum sulfate. I am mostly looking to dye cellulose fabric yardage. Will aluminum sulfate work as a mordant for cellulose fibers? KATHY ANSWERED: Yes, it will work: aluminum sulfate and aluminum potassium sulfate are largely interchangeable. It used to be that aluminum sulfate could contain traces of iron, which would shift colors, but most modern day aluminum sulfate is pretty “clean” – at least I haven’t had an … Read more

MORDANT MONDAY: Mordanted Pieces Resist Wetting Out

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 love the fact that aluminum triformate works with cold water. When I let mordanted pieces dry until I’m ready to use them, I have a hard time wetting them out before submerging them in a natural dye bath. Do you have an explanation or any tips? KATHY ANSWERED: I’ve noticed that alum mordanted fibers and fabrics can sometimes resist rewetting, especially in cold water. I’ve had skeins that I put in a water bath to rehydrate … Read more

MORDANT MONDAY: Dissolving Aluminum Acetate + Re-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: My aluminum acetate often does not completely dissolve even with boiling water. Do you recommend putting the undissolved mordant in the vat with the fabric/textiles or would you strain? My assumption is that by excluding the undissolved mordant, one is reducing the amount used for the WOF. KATHY ANSWERED: Aluminum acetate is tricky to dissolve, but it should eventually dissolve. Sometimes I leave it overnight and it dissolves completely. I do not recommend putting lumps of undissolved … Read more