FUSTIC DYE ~ Yellow

FUSTIC HARDWOOD ~ Dyer's Mulberry, Old Fustic or Yellowwood
Dye Colour: Yellow and Green | Country of Collection: Unknown (Typically sourced from tropical regions) | Maclura tinctoria or Chlorophora tinctoria 

Fustic, introduced to Europe in the 16th century, is a classic natural dye that produces vibrant yellow tones and clear greens when overdyed with indigo. Sourced from the hardwood of the Chlorophora or Morus tinctoria tree, a member of the Mulberry family, Fustic is known for its strength, requiring only 50% of the dye by weight of fibre (W.D.F.). The wood chips used for dyeing are reusable, allowing for multiple dye baths.

Colour Fastness: Poor to Medium

Colour Outcomes by WOF Ratio:

• 50% WOF Dye (Fustic): Produces a bright, clear yellow hue.
• Overdye with Indigo: Results in a clear, vibrant green.
• With 3% Iron: Transforms the dye into an olive green tone.

Basic Recipe for Dyeing:

• Ingredients: 50% Fustic cut, 10% Alum
• Instructions:
  1. Mordant the yarn by dissolving Alum in hot water and adding the yarn. Let it steep overnight.
  2. Steep the Fustic woodchips in hot water overnight.
  3. The next day, rinse the mordanted yarn.
  4. Strain the Fustic dye and let it dry for an additional day.
  5. Add the mordanted yarn to the dye bath and heat to 85°C for 1 hour.
  6. Rinse and dry the yarn.
  7. Reusing Dye: If using the dye again, boil it for 45 minutes to deepen the yellow colour.

Unlock the potential of this traditional dye, whether you're looking for a rich yellow, earthy green, or vibrant hues when combined with other dyes like Indigo.

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