The newly bought woolen coat smells of engine oil, but it still smells of engine oil after washing. How to remove the smell of engine oil?

Because engine oil is a polymer organic substance, it is insoluble in water, but soluble in alcohol or gasoline, and alcohol can be cleaned with polar cleaner. So you can spray your coat with alcohol first, then wash it with neutral detergent once, and then do the following treatment:

Method 1: first hang the coat on the hanger, then spray some water on the quilt with a sprayer, leave it for a while, dry the water with a dry towel, and then air it for a while. You can add a few drops of lemon juice to the water here, and the smell will be better.

Method 2: first spread the coat flat, spread a towel soaked in water and wring it out, and then iron all the coats flat. When the whole coat is ironed by a towel, the odor on the coat will disappear and transfer to the towel.

Method 3: You can also hang the smelly coat in the bathroom after a hot bath 10 minutes, and then take it out and put it in a ventilated place to dry. If you have a humidifier at home, you can hang your coat on the humidifier for 20 minutes, and then hang it in a ventilated place. The principle of this method is very simple, because water vapor will take away the odor molecules on the fiber during evaporation, thus eliminating the odor.