Introduction:
As the the most important part of garments and bags, Zipper can be one of the most important inventions in the world for more than 100 years. Udson (American) invented the first zipper, it experienced the World War II period of popularization and the subsequent development and improvement stage. Zipper in the World War II is used to improve the speed of dressing for the soldiers. In 1953, the first Plastic Zipper invented in Germany, it is the beginning of a non-metallic zipper. After that, the more economic material nylon thread was used in zipper production. This zipper called Nylon Zipper. It is cheaper and easier to produce than Metal Zipper and plastic zipper. The nylon zipper accelerated the popularity of Zippers.
Even today, these three kinds of zippers are still the most basic zippers in the field of zippers.
The below is the classification of zipper which classify by the material of teeth:
| Type of zipper | Nickname | Material | Sec-classification |
| Metal Zipper | Metallic Zipper | Brass, Aluminum, Zinc | Brass Zipper, Aluminum Zipper, Cast Zinc Zipper |
| Plastic Zipper | Delrin Zipper, Resin Zipper, Vislon Zipper | POM, PP, PE, ABS, PS | Plastic Zipper, Intensified Zipper(Material: Nylon 66) |
| Nylon Zipper | Polyester Zipper, Coil Zipper | Nylon Tread | Nylon Zipper, Invisible Zipper, Double-bone Zipper, Woven Zipper |
