Paint thinner is a generic term given to the paint solvent, mineral spirits. Although it is used to thin certain types of oil-based paints, it's also an effective cleaning agent, and many people use it to remove paint stains from flooring and fabric. However, because paint thinner is petroleum-based, it leaves behind an unpleasant odor even after it has dried. If you want to remove this smell from fabric, you will need to use a solvent that is not petroleum-based, or you will just be replacing one smell with another.
Put rubber gloves on to protect your hands and place the fabric inside the bucket.
Pour in enough turpentine to saturate the fabric. Allow the fabric to soak in the turpentine for five minutes.
Place a clean fabric drop cloth on top of a cement surface.
Remove the fabric and place it on the clean fabric drop cloth. Allow the turpentine to evaporate.
Wash the fabric with laundry detergent.