Aprons are worn to prevent dirt on clothes during work. There are various types of aprons for various purposes. The most commonly used apron is a denim bib apron, which is mainly used in a wide range of work such as light work and transportation in stores and factories. Food processing sites use waterproof aprons that comply with the Food Sanitation Act of Japan, and medical and nursing care sites use highly waterproof disposable plastic aprons. Also, it is important to select a solvent-resistant apron when working with chemicals, and a heat-resistant apron when working in front of a furnace or at a welding site. There are various shapes of aprons such as a café apron that covers under the waist only and an apron with sleeves, as well as a bib apron. Therefore, it is necessary to select the optimal apron according to the purpose and application.