Polyester is a durable fabric that is resilient and easy to clean. But what about a greasy butter stain on a polyester shirt? There is no need to throw out the shirt simply because of a butter stain. Although butter is an oily substance, it can be effectively removed from polyester. Removing the butter stain requires the proper products and methods to prevent the stain from further spreading or setting into the fabric.
Blot up as much of the butter from the shirt as possible with paper towels. Avoid rubbing or the butter may spread to unaffected areas of the shirt.
Sprinkle baking soda onto the stained area of the shirt. Rub the baking soda in gently with your fingers.
Allow the baking soda to set on the shirt for a few minutes, then rinse the baking soda from the shirt using warm water.
Apply some liquid dish soap to a clean, dry cloth. Dab the dish soap onto the butter stained area. Choose a dish soap with grease-cutting properties for best results.
Wash the shirt as usual. Inspect the shirt for any trace of the butter stain as soon as washing is complete. Do not dry the shirt unless you are sure the butter stain has completely lifted, because the heat from the dryer will set in the stain.
Blot the butter stain with a clean cloth and ammonia if the stain persists. Test the ammonia on an inconspicuous area of the shirt first to make sure it doesn't lighten the fabric.
Apply a few drops of clear shampoo to the stained area for pretreatment. Wash the shirt as usual, inspecting it after the wash cycle. Repeat the process, if necessary, until the stain has lifted. Some stains will be tougher to remove than others and may require more than one treatment.