As far as robustness is concerned, nylon is generally considered to be stronger than ordinary plastics. Nylon was developed by the outstanding American scientist carothers and his research team. It is the first synthetic fiber in the world. Nylon is the general name of polyamide fiber (nylon), which can be made into long fiber or short fiber. Its appearance makes the appearance of textiles look brand-new. Its synthesis is a major breakthrough in synthetic fiber industry and a very important milestone in polymer chemistry. Because of its structural characteristics, nylon is usually superior to ordinary plastic materials in strength and wear resistance.