Zippers are very common and common in the application of bags. The zipper is a belt-shaped opening and closing piece commonly used in bags. It is widely used and convenient for the fastening of luggage. It has different specifications of length, closed-end type, open-end type, hidden type and so on. Laptop backpack zippers can be divided into metal zippers, plastic zippers and nylon zippers according to the material and shape of the zipper teeth. The zippers are generally expressed by numbers. The larger the number, the thicker the teeth and the greater the fastening force. Let's talk about it briefly.

Zippers of different models and materials have different performances. When customizing bags, you should pay attention to the zipper points. It should be selected according to the purpose of the bag, the way of use and maintenance, the thickness, performance and color of the fabric, and the part where the zipper is used. For thin and light bags, small zippers should be used. The shrinkage, softness, and color of the zipper base fabric should be coordinated with the fabric. In addition, because zippers have different adaptability in different environments, such as daily backpacks and mountaineering bags, the external zipper strength of mountaineering bags is higher than that of backpacks.

There are many kinds of zippers, which can be divided into two categories: closed end and open end. The closed-end zipper is divided into single-end and double-end. When the closed-end zipper is opened, the tooth chain belts on both sides cannot be completely separated. A single-end closed-end zipper refers to a closed-end zipper with one puller. Double-ended closed-end zipper refers to a closed-end zipper with two sliders, and the two sliders can be opened and closed facing away from each other.

The zipper is arranged on the bag, and it is necessary to pay attention to the aesthetic feeling of coordination. Today, the use of luggage zippers is no longer a single zipper and a double zipper.