mordant monday Archives - Page 5 of 6

MORDANT MONDAY: Does Alum Acetate Have a Shelf Life?

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 alumimum acetate mordant that is 18 months old. It is kept in a plastic container inside a freezer plastic bag. I heard it has a short life. How do I know when it is not worth using? KATHY ANSWERED: I have also heard that aluminum acetate has a short shelf life but I asked our supplier and they were unaware of this issue and have never provided us with a “best by” usage date. … 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: Does Alum Triformate Shift 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 have just recently tried Alum triformate, first time using it. Have you had reports that it shifts the colors? We used Sequoia extract that was purchased from Maiwa, and it should have a dusty brownish purple, and it did on the regular alum mordanted bits I had in there- but it made a greenish grey on the triformate. Just wondering if you had info on this? I’m going to do a test with 2 skeins in … Read more

MORDANT MONDAY: Fresh Rhubarb For Mordanting 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 use fresh rhubarb leaf for pre-mordanting wool, and I’m wondering if it can be used dried, and if so, what is the ratio of dried leaf to WOF? KATHY ANSWERED: Since you are already using the fresh leaves, do you have a percentage or weight that you are using? If so, I would use about half as much with dried leaves and see if you like the results! YOU ASKED: Kakishibu Japanese persimmon dye is used with … Read more

MORDANT MONDAY: Symplocos Mordant + Prepping Paper

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 looked over the symplocos mordanting instructions that you have on the Botanical Colors website and I see that there is an “Oiling the Fabric” step for cellulose fabrics that we did not use in the workshop. I am wondering how important that step is in creating a fairly lightfast and colorfast final fabric? I really love some of the colors we got in class on cotton using symplocos mordant and sappanwood and would like to use … Read more

MORDANT MONDAY: Will Mordant Wash Out Without 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 have been contacting a well-published natural dyer and they say that the aluminum mordants will be washed out of the fiber without pre-treatment with tannin. Do you have any theory why the triformate is able to mordant without a tannin ? Have you got any data on the wash and light fastness of the triformate on cotton? KATHY ANSWERED: Alum on cellulose performs better with a tannin pre-treatment. However, we have not noticed that the mordant … Read more

MORDANT MONDAY: Mordanting For Mixed Fibers + Blotchy Linen

We get mordant questions all the time at Botanical Colors so why not create Mordant Monday??? Got mordanting questions? Email [email protected] This week on MORDANT MONDAY… YOU ASKED: I tried the oak gall tannin and then symplocos method on linen and for the life of me I can’t get an even dye. The mordant looks blotchy. Not sure what to do. I get consistently blotchy pieces with linen. KATHY ANSWERED: Hmm. Unevenness in mordanting and dyeing can come from a number of bedeviling sources. The first thing that comes to mind is the cleanliness of the fabric. If the linen isn’t evenly … Read more

MORDANT MONDAY: Alum + Tannin & Line Fade

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 live in India and where I live there is a lot of rust in the water. When I have tried to do a tannin-alum procedure before dyeing I noticed as soon as I put my fabric in the alum after the oak gall soak my fabric turns grey!!! The alum I have is alum sulfate for cotton because I don’t have alum acetate. I am trying symplocos now. Any suggestions how to avoid staining all material grey?? KATHY … Read more

MORDANT MONDAY: What’s The Most Lightfast 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: My mordant steps for cellulose fabrics after scouring are:1. Tannin powder solution overnight2. Aluminum acetate overnight3. Calcium carbonate 15-30 minutesIf I am using alum acetate instead of alum sulfate, do I still need the tannin pre-soak step? I always thought alum acetate was the recommended alum for cellulose and alum sulfate for animal fibers.Do they work equally well or is alum acetate still the best cellulose mordant? KATHY ANSWERED: Tannin is always a great bonus to any … Read more

MORDANT MONDAY: Penny Circles + Mordanting 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 am looking for something to dye 100% wool. I mostly eco dye and not familiar with dyeing wool. I’d like to do several colors to make penny circles. I have a whole bolt of the wool. Can you recommend something for color and mordant? (My wool has been scoured.) KATHY ANSWERED: Since penny circles are fairly small, you have a lot of options to make some lovely color combinations. A small amount of fabric – something … Read more