https://acrobat.adobe.com/id/urn:aaid:sc:US:b55943c8-34c8-4356-8cf1-e8a276ff4d46
https://botanicalcolors.com/botanical-colors-how-tos/
titanium oxalate
Mordant Definition: A mordant is defined as a naturally occurring water soluble metallic salt which creates a bond between the dye and the fiber.
The word “mordant” means “to bite” in french. So, if we think of the fiber as a surface, we can picture the mordanting process as a way to allow the fiber to open up in order for the dye to be able to bite into the fiber.
In order to create colors that are colorfast (meaning that will last) it’s very important that you use a mordant to prepare your fabric for dyeing and receiving the color from the dye.
The function of a mordant is therefore to create a bond between the fiber and the dye. There are many types of mordants.
Alum sulphate is the go to mordant when it comes to dyeing and printing with protein fibers such as silk and wool
Alum acetate is the go to mordant for cellulose fibers such as cotton, linen and paper.
use tannin mordants in combination with iron blankets
use ferrous sulphate (or iron powder) as a mordant to create darker prints
combine alum and an iron solution in the mordant bath to create a particular effect.
Riverview Arts 