Combine soda ash and 3 gallons of warm water in a bucket, stirring until dissolved.
Soak Fabric in Soda Ash
Submerge fabric in soda ash mixture.
Do not overstuff; instead, soak only fabric that easily fits in bucket.
Allow fabric to soak in soda ash mixture for at least 30 minutes.
Mix Urea Powder
Combine urea powder and 1 cup warm water in a mixing cup.
Pour a few tablespoons of urea mixture into a plastic mixing container with fiber-reactive dye in bottom.
Clean Sides of Tub
Wipe the inside of dye tub to prevent unwanted dye marks on fabric.
Wring out fabric and attach binder clips.
Wring Fabric
With clean, gloved hands, remove fabric from dye.
Hold undyed end of fabric with one hand while wringing out excess dye with the other.
Set Fabric Aside
Place dyed fabric on a clean surface protected from the dyeing area.
For more than three levels of ombre, you’ll need to make more dye concentrate.
Use a spring clamp and stool or ladder to hold fabric while dyeing if desired.
Rinse Fabric
Rinse fabric with cold running water until water runs clear.
Wring fabric again, squeezing out as much excess water and dye as possible.
Wash Fabric
Wash fabric in hot water using professional textile detergent.
