Showing posts with label cotton mordants. Show all posts
Showing posts with label cotton mordants. Show all posts

Friday, March 25, 2016

Eco Printing from the Shoreline

A significant portion of my childhood was spent on this beach at Ft. DeSoto Park near St. Petersburg, Florida. Each winter when visiting my mom, we spend some time there. It's always a highlight of my stay.
This year, the mysteries of printing with plant pigments is always on my mind. And I had read recently that sea water makes a good mordant for printing on cotton. The photo above indicates it might be a good mordant for sand as well. Do you see the brown pigment bleeding from the mangrove leaf?
My shoreline walk that windy, cool day yielded lots of mangrove leaves washed up on the beach, along with some seaweeds. I used them as I found them - with a salty, sandy coating straight form the sea.
The seaweed (Sargassum, I believe) printed beautifully on seawater-soaked watercolor paper that was steamed in a packet, along with the mangrove leaves. I love the experiments!

Monday, August 17, 2015

Those Pesky Plant Fibers

I need some help!!! Lots of fun last week with our mushroom dye experiments. I'm buying more raw silk - I love its texture and it took the dyes beautifully.

BUT. As you can see from this photo, the cottons (top left and bottom right) did not. And I thought I had prepared them (as well as some linen) by soaking overnight in a soda ash solution then drying them before the dye process.  Even in the colorful lobster mushroom dye with added soda ash, the plant fibers didn't color much.

Yep, I know the plant fibers need to be mordanted with various substances. And I've spent a couple of days reading about how to do that. I think I understand the chemistry.

But I guess the how-tos of mordanting are so basic that most articles don't discuss the actual step by step process. Or the processes conflict with something else I read.

Can any of you talented Dye Queens (or Kings) tell me exactly how to mordant my cottons and linens for natural dying? Do I boil the fabric in the mordant solution? Dry them before dying? Soak and dry 3 times? Use alum acetate? Wave a dried indigo stalk over the dye pot while chanting a specific incantation?

I'd love to hear about the specifics of your method, and I'll compile them in a post to share. Thanks a bunch!