Ferrous sulfate, also known as iron sulfate, is a versatile mordant used in natural dyeing to alter and deepen colors. It creates beautiful, muted, earthy tones by darkening and shifting hues—transforming bright yellows to rich olive greens or soft grays. This makes it a perfect choice for achieving more complex, subtle shades in your dyeing projects.
In addition to modifying colors, ferrous sulfate also helps fix dyes to fibers, improving color fastness and ensuring long-lasting results. Its mild acidity can adjust the pH of the dye bath, affecting how different dyes interact with the fiber.
Ferrous sulfate can be used in combination with other mordants like alum to enhance or modify the final color. It's most effective on protein fibers like wool and silk, though it can also be used on other materials.
Usage: Typically used at 2-5% of the weight of fiber (WOF) for subtle color shifts, with higher concentrations for more intense effects.
Unlock unique, earthy tones in your natural dyeing with Ferrous Sulfate—a must-have for creating depth and complexity in your dyed textiles.