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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: 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

FEEDBACK FRIDAY: This Week in Natural Dye Questions

This week: Is iron safe for babies, mordanting with tannins and getting a lighter hue and does liquid rhubarb like cotton?

FEEDBACK FRIDAY: This Week in Natural Dye Questions

Each week, we are emailed with questions from our natural dye community asking simple and complex questions that we thought might be worth sharing. Here are a handful from this week answered by natural dyer in chief, Kathy Hattori, Founder of Botanical Colors: Is there any way to remove iron from fabric to brighten it up? Iron is a reliably “permanent” mordant, which is why it is used to enhance light and “washfastness” with dyes that are weak in these categories. I have not seen a reversible method for removing iron. I keep getting mixed answers from people about dyeing … Read more

You Asked, Kathy Answered: Indigo Dark Spots + Hapazome Tips

We get lots of emails from customers about challenges with dyeing and needing Botanical Colors’ President Kathy Hattori’s help. Why not share the learning so we can all benefit? From our inboxes to you, it’s simple: You Asked, Kathy Answered. Email questions@botanicalcolors with your plea for help! YOU ASKED: I have been dyeing with indigo for a number of years and always end up with some inconsistency. I always get some spots that are darker than the whole piece. Similar to what an oil stain on clothing would look like. Any recommendations for solving this problem? Or lightening the dark … 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

FEEDBACK FRIDAY: This Week in Natural Dye Questions

This week: Looking at the longevity of black bean dyeing and using hide glue in an organic vat when dyeing silk and wool.

MORDANT MONDAY: Tannin Mordanting Cotton & Stiff Wool

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 getting ready to dye vintage cotton runners. I have aluminum acetate, which tannin powder would you recommend? Weight of fiber protocol?I have a bag of wool roving and also trying to figure out the best way to handle. Last time I ran it through a dye bath it dried dull and stiffish. What do I need to do next? KATHY ANSWERED: The choice of which tannin is really up to your preference. We like to use … Read more

‘Water and Earth’ on View at Gallery 51 in North Adams, MA

Gallery 51 manager Julia Morgan-Leamon and North Adams, Massachusetts artist Sarah Sutro, who has a studio in the Eclipse Mill, have curated a group show of 10 local, national and international artists, in “Water and Earth,” a call to protect fragile ecosystems. “Sutro brought the idea to the gallery. It has roots in a trip abroad, she said. She lived in Bangladesh for two years and in Thailand for four. Bangladesh is a burgeoning society, she said. It has come through rough conflict in 1971 and has begun to develop: Small businesses are coming back and are open to sharing … Read more

FEEDBACK FRIDAY: This Week in Natural Dye Questions

This week: It’s all about the dye inks we just released!