The zipper is one of the very important accessories of the backpack, which can be directly related to the service life of the backpack. Backpack zippers are divided into different types according to different properties. According to the material classification, they can be divided into three types: resin zippers, nylon zippers, and metal zippers.

Resin zipper

Features: Resin zippers are tough, wear-resistant, corrosion-resistant, colorful and suitable for a wide temperature range. In addition, because of the large area of the upper and lower planes of the chain teeth, it is beneficial to inlay diamonds or gemstones on the planes, which makes the zipper more beautiful and luxurious, doubles its value, and becomes a practical craft decoration.

Disadvantages: Due to the large particles of the chain teeth, it has a rough feeling, and the smoothness of the zipper is slightly worse than that of other types of zippers of the same model (nylon zipper, metal zipper).

Nylon zipper

Features: Nylon zipper is soft, smooth surface, bright and colorful. The most prominent features are light weight, thin chain teeth, and wind ability. Among them, the waterproof zipper is also a branch of the nylon zipper, which is a nylon zipper that has undergone some special treatments: sticking PVC film, sticking TPU film, soaking in waterproof agent, coating waterproof zipper and so on.

Disadvantages: Polyester monofilament is easy to age, and has a narrow range of application to high and low temperatures.

Metal zipper

Features: Durable, soft, elegant and solemn.

Disadvantages: The fastener elements are easier to fall off and shift than other types of zippers. Due to the high price of raw materials, they are more expensive than other types of zippers. Among them, the aluminum zipper has a weaker strength than the copper zipper of the same type. However, after surface treatment, it has the decorative properties of imitation copper and multi-color. Because the price is lower than that of copper, its sales price has a certain competitive advantage.

The quality of the backpack zipper is not only related to the quality of the backpack. The matching of the appropriate zipper with the backpack style has the finishing touch. A small zipper can make a big difference. Therefore, whether you are buying or customizing a backpack, everyone should pay attention not to ignore the choice of zipper.