Jacquard Sodium Hydrosulfite

Jacquard Sodium Hydrosulfite (or "Hydro") is a universal reducing agent that is used for indigo dyeing. It is also used as a non-aggressive alternative to bleach for removing color from dyed fabrics and for whitening antique textiles.

Available in a 1lb bag.

Instructions:

For use with Jacquard Pre-Reduced Indigo Dye:
Use 1 part Jacquard Indigo Dye to 2 parts Jacquard Sodium Hydrosulfite to 4 parts Jacquard Soda Ash. (Use 1 gal / 3.79 L of water for every 0.18 / 5 g of dye.)

For use as a color remover:
Use in equal parts with Jacquard Soda Ash (1:1) at 3-5% by dry weight of fabric. Heat to 185°F / 85°C, add fabric and continue heating. Color removal works best at a rolling boil. Keep fabric moving for 10 to 20 minutes or until color has left as desired. Wash with mild detergent in cool water.

Please note: Not all dyes are fully susceptible to color removal, testing is recommended as results may vary.