The special thinner for ink is a paint thinner. A paint thinner is also called a thinner. Its official name is called thinner or solvent oil. It is usually a colorless transparent liquid, volatile, and has a floral odor. It is commonly known as banana water. The big feature of thinner is that it is easy to volatilize and gasify. In industrial production, most industries have to deal with thinners, which are flammable and dangerous goods. In paint, thinners emit in the air to form the smell of paint.