Fresh paint stains can be removed with solvents like turpentine, banana water, or carbon tetrachloride.
For older, dried stains, soak the affected area in a 10%-20% ammonia or borax solution to dissolve and remove the paint.
Alternatively, soak the stain in a 1:1 mixture of ether and turpentine to soften it, then wipe with gasoline for effective results.
How to Remove Ink Stains
Soak or wipe with gasoline, turpentine, or carbon tetrachloride, then rinse with water to remove.
For old soy sauce stains, soak in detergent solution with a suitable amount of ammonia water, or wash with a 2% borax solution. Avoid this method on silk or wool fabrics to prevent damage. Alternatively, rub with white radish juice, sugar water, or alcohol to remove.
How to Remove Tea Stains
Fresh tea stains can be rubbed with hot water at 70–80°C.
For old stains, soak in concentrated saltwater or scrub with a 1:10 ammonia-glycerin mixture.
How to Remove Coffee Stains
Wipe with a solution of glycerin and egg yolk. Once slightly dry, rinse thoroughly with clean water.
Alternatively, clean with 3% hydrogen peroxide, concentrated saltwater, or glycerin solution.
How to remove cigarette stains
Rub repeatedly with a 1-2% potassium permanganate solution, then repeatedly dab with 3% hydrogen peroxide.
Alternatively, prepare a solution of 1 part hydrochloric acid, 12 parts potassium sulfate, and 25 parts water, then rub repeatedly.
Fruit juice: For fresh stains, wipe the affected area with concentrated saltwater or immediately sprinkle salt on the stain, gently rub with your hands, then wash in detergent solution. For old stains, soak in 5% ammonia solution first, then wash with detergent and rinse thoroughly with clean water.