Color Remover RIT

Rit Color Remover is a non-chlorine, reductive type of bleach that will not damage or deteriorate washable fabrics as chlorine bleach will. It is used primarily to remove or reduce color from fabric prior to dyeing, creating a blank canvas for dyeing to a true color. It works on cotton, linen, silk, wool, ramie and rayon. It may have a limited effect on polyester, depending upon how it was dyed commercially.
Pre-wash item in warm, soapy water.
Fill a stainless steel pot with enough water for the fabric to move freely. Cover pot and heat water on stove top to just below boiling (or around 90°C).
When water begins to simmer, add one packet of Color Remover. Mix well.
Keep temperature at a low simmer.
Wet the item you are going to be removing the color from and add it to the bath.
Stir occasionally. Some fabrics will lose their color in as fast as 10 minutes, others can take up to 20 minutes. Once your garment turns white or off-white, you can remove it from the bath.
Rinse in warm water and then gradually cool water until rinse water begins to run clear.
Wash in warm water with a mild detergent, rinse and dry.