How to wash the black circle around the collar?

The first thing to do is to remove the grease so that the stains under the grease can be dealt with. There are many ways to remove grease, and you can choose one based on your preferences and the supplies at hand. Try: Soak the shirt in the dishwasher. Apply regular dishwashing liquid to the stain on the collar until it is covered. Let it soak for 1 hour (or longer), then rinse off. Chances are you’ll need to get your shirt wet before the dishwashing liquid can actually seep in.

Use a similar degreaser to spray on the oil stain, soak for 5 minutes, then rinse. Be careful with this very strong product as it can irritate the skin. Use shampoo to wash away the stains left by greasy hair. Use the shampoo in a similar way to the dish soap above, and you’ll get unexpected results. Add grease. If there is no effective method, some people think that adding more grease to the shirt collar can effectively remove it. In theory, the new fat molecules will bind to the old ones and help extract them. You can use products purchased at the drugstore or auto store, such as lanolin hand cream.

After using a stain remover to remove the grease, only real stains remain on the collar. Without the grease, stains are easier to remove. There are many ways to remove stains. Use a laundry detergent. Many stores sell this common stain removal basic product. Spray on the stain, let it sit, then wash the shirt as usual. Use an oxygenated detergent. This is also a common cleaning product. If you don’t have oxygen lean meat, you can make one yourself. Basically a mixture of baking soda and hydrogen peroxide. You need to apply to the stain and then work a little harder to get the stain off the clothes. Grab the collars on both sides of the stain and rub them against each other.

Stir the stain. While collars shouldn’t be washed too often, doing so can lead to better stain removal. When the stain is covered with degreaser or stain remover, dab the stain with an old toothbrush. As long as this is done infrequently and with extra care to prevent stains from forming, the shirt should still be in good condition. After using a degreaser and stain remover, you can wash your shirts as usual. Do not dry the shirt until the stain is washed off, the dryer will cure the stain and leave it to a professional. If the stain cannot be removed, take the shirt to a professional dry cleaner. They probably have a better way to remove the stain, and it doesn’t cost much to wash the shirts.