Question: What are the types of backpack zipper? Answer: Zipper is a connecting piece that relies on continuously arranged chain teeth to merge or separate items. It is now widely used in clothing, bags, tents, etc. Backpack zippers are classified according to different properties, and there are mainly the following five types: 1. Classified by material nylon zippers, resin zippers, and metal zippers. 1. Nylon zipper: invisible zipper, through zipper, rubber waterproof zipper, non-through zipper, double bone zipper, woven zipper, etc. 2. Resin zipper: gold (silver) tooth zipper, transparent zipper, translucent zipper, animal energy luminous zipper, bud shot zipper, diamond zipper. 3. Metal zipper: aluminum zipper, copper zipper (brass, cupronickel, bronze, copper, etc.), black nickel zipper. 2. Classified according to species 1. Closed-end zipper: double-opening O-type, double-opening O-type. 2. Open zipper (left and right insertion): double open end X type, double open end X type. 3, double closed zipper (X or O). 4, double-opening zipper (left and right insertion). 5, double open end zipper (X or O). 6, single-sided open tail (left and right insertion, limited to nylon and resin, usually joint caps). 3. Classified by specifications 0#, 2#, 3#, 4#, 5#, 7#, 8#, 9#, 10#, 20#,,,,,,,,, 30#, model size and zipper The size of the teeth is directly proportional, the larger the model, the larger the zipper teeth. Four. Classified by structure 1. Closed zipper. The back code is fixed and can only be pulled apart from the front code end. When the zipper is fully opened, the two chain straps cannot be separated by the back yard connection. Suitable for ordinary bags. 2, open zipper. There is no back code at the lower end of the tooth chain and a locking piece is arranged. When the locking member is locked, it is equivalent to a closed zipper. Pull the slider against the locking member to separate the locking member, and the chain belt can be separated. Suitable for clothing or items that often need to be pulled apart. 3, double open zipper. There are two sliders, which can be opened or closed from either end. Pull the two sliders against the lock to separate them, and then they can be fully opened. Suitable for large bags, bedding, tents, etc. 5. Classified by function 1, self-locking zipper. 2, no lock zipper. 3, semi-automatic locking zipper. 4, invisible zipper. Backpack zipper is one of the important accessories of the backpack. The quality of the zipper is directly related to the life of the backpack. Therefore, whether it is to purchase or customize the backpack, the quality of the zipper is an important part that everyone cannot ignore. If you don’t know much about backpack zippers, you can consult the luggage manufacturer online or call the free consultation hotline for details.