Lay a piece of a paper grocery bag on your ironing board. Then lay the shirt over the paper bag and lay another piece of paper bag on top of the shirt. The iron can be set on a fairly high temperature. Set it on the bag, that is over the spot you want to remove. The heat from the iron should warm up the butter and transfer it to the paper bag. You may need to move the paper bag several times to transfer the butter from the shirt to the paper bag. This also works quite well with removing wax from places you don't want it as well.
To remove stains from a white shirt, soak it in a mixture of water and white vinegar for a few hours, then wash it as usual with laundry detergent. For tougher stains, you can apply a paste of baking soda and water to the stained area before washing. Always check the care label on the shirt before attempting to remove stains.
Wash it with washing machine or wash it with your hand.
Apply Nail polish remover
To effectively remove tea stains from a white shirt, mix equal parts white vinegar and water, then dab the solution onto the stain. Let it sit for 15 minutes, then rinse with cold water and launder as usual. Repeat if necessary.
place some brown paper over the stain then go over it with an iron and the heat off the iron will bring out the fat in the butter soaking into the brown paper and then wash clothes as usual
No, bleaching a polyester shirt is not recommended as it can damage the fabric. It is best to use alternative stain removal methods that are safe for polyester.
Different stains require different methods of removal. Most stains, however, can be removed using a stain remover like Shout. You would need to spray the remover on the stain, rub it in a little, then launder according to the manufacturer's instructions located on the label of your custom t-shirt.
bleach the shirt
To remove color stains from a white shirt, you can try soaking the stained area in a mixture of water and oxygen-based bleach, or treating it with a stain remover specifically designed for colored stains. Make sure to follow the instructions on the product label and launder the shirt according to its care label after treating the stain.
To remove blue stains from a red t-shirt, mix white vinegar with water and gently dab the stained area with a cloth. Alternatively, you can try using a stain remover or pre-treating the area with a laundry detergent before washing the shirt as usual. Avoid using hot water as it can set the stain.
Soap alone may not effectively remove curry stains from your shirt. It is recommended to pretreat the stain with a stain remover or a mixture of water and vinegar before washing it with soap. This will help to break down the oils and spices in the curry and improve stain removal.
Unfortunately, you do not. The shirt is not stained, it is bleached. The only way to cover the light spots would be to re-dye the shirt. That is probably not a good idea, as it is difficult to do properly unless you've done it before.