Zipper is a common device used to close an opening or connect two objects. Because of its convenience and practicality, simple operation and firm structure, zipper is widely used in clothing, bags, shoes, tents and many other fields. Different materials will affect the use of zippers. The following will introduce the common materials, advantages and disadvantages and scope of application of zippers.

1. Nylon zipper

Nylon zipper is one of the more common zippers. The material of the chain teeth is mainly polyester slices. The nylon monofilament made from it will be made into the chain teeth of nylon zipper by heating, tooth beating and winding the center line of the zipper forming machine. After the cloth tape and chain teeth are sewn together by a zipper sewing machine, a nylon zipper with smooth pulling feeling and stable quality is finally produced by using a pre-finishing machine to iron out and remove oil in advance.

Nylon zipper has the characteristics of light weight, good flexibility, heat resistance and no corrosion. The chain teeth of nylon zipper are continuous spiral, so there is no single tooth displacement strength in its physical properties, so it is suitable for light items and items that often need to change, such as clothing, bags, shoes and boots, tents, household items for regular purposes and outdoor products. Such as have higher requirements.

2. Resin zipper

Resin zippers are also called plastic steel zippers, rubber tooth zippers and plastic zippers. They are usually made of polyester material particles (POM formaldehyde copolymer). After melting at high temperature, the microphone teeth are injected onto the cloth tape through an injection molding machine to become zippers. It has the advantages of light weight, flexibility, durability and easy cleaning.

In addition, the shape and color of the chain teeth of the resin zipper are very diverse, and the chain teeth of different shapes can be made according to different needs, making the zipper more artistic, beautiful and creative.

Compared with traditional nylon and metal zippers, plastic zippers are significantly inferior to the first two in terms of heavy weight and multiple use. However, due to the characteristics of changeable styles, clothes, jackets, brand handbags, stationery, children's clothing, etc. all like to use resin zippers.

3. Metal zipper

Metal zippers include copper, zinc alloy, aluminum alloy, stainless steel and other materials, which are no less than other materials in terms of texture and durability. Metal zippers are suitable for heavy goods, such as leather bags, leather boots, Denim clothing, etc.

In addition, due to the anti-corrosion properties of metal, metal zippers can withstand many years of use without oxidation or corrosion. However, metal zippers also have disadvantages such as being heavy, being easily damaged, generating noise, etc. At the same time, metal zippers are easy to rust and require frequent maintenance. Due to the material characteristics, the metal zipper chain tooth surface is hard, feel is not soft, so it is not suitable for use in the corner of the product.

In summary, the material of the zipper will affect the performance and scope of application of the product. You can choose the zipper product that suits you according to actual needs.