mordant monday Archives - Page 3 of 6

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: 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: 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

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: 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: 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

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: Is Soy Binder In The Whole Plant?

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 growing soybeans to make soy milk to use as a binding agent and am wondering if it’s possible that the entire plant contains the necessary proteins, or if it’s solely in the beans? KATHY ANSWERED: If you do a search on soybean leaves and protein, a lot of information comes up. It appears as if the leaves contain protein but I don’t have the training to translate how much protein and what quality it is … Read more