Soot Stains- Washable Fabrics
Treat stains as soon as possible after staining. The older the stain, the more difficult it is to remove.
All stain removal methods should be applied prior to laundering washable garments. Stains that have been laundered and dried are almost impossible to remove.
What you will need; a pretreatment laundry stain remover, heavy-duty liquid detergent, chlorine bleach or oxygen bleach, dry-cleaning solvent, and absorbent paper towels.
You’ll want to saturate the area with pretreatment laundry stain remover, first. For greasy stains, aerosols seem to work better. Wait one minute for the product to dig deep to draw out the stain.
For stubborn stains, knead the area with heavy-duty liquid detergent. Launder immediately afterward.
If it is safe for the type of fabric you’re cleaning, soak/wash in chlorine bleach, or oxygen bleach if the color stain remains.
For stains that persist, apply a dry-cleaning solvent to back of the stain over absorbent paper towels. Let it dry, rinse it, and restart the process from the beginning.