The zipper is a connecting piece that relies on the continuous arrangement of chain teeth to make items merge or separate. It is now widely used in clothing, bags, tents, etc. Backpack zippers are divided according to different performances, mainly in the following five types:

What are the categories of backpack zippers?

1. Classification by material

Nylon zipper, resin zipper, metal zipper.

1. Nylon zippers: invisible zippers, through-heart zippers, adhesive waterproof zippers, non-through-heart zippers, double-bone zippers, woven zippers, etc.

2. Resin zippers: gold (silver) teeth zippers, transparent zippers, translucent zippers, luminescent zippers, laser zippers, and diamond zippers.

3. Metal zippers: aluminum zippers, copper zippers (brass, cupronickel, bronze, red copper, etc.), and black nickel zippers.

2. Classification by species

1. Closed-end zipper: double-open-end O-type, double-open-end O-type.

2. Open-end zipper (left and right insertion): double-open-end X-type, double-open-end X-type.

3. Double closed-end zipper (X or O).

4. Double open-end zipper (left and right insertion).

5. Double open-end zipper (X or O).

6. One-sided open tail (left and right insertion, limited to nylon and resin, common cap type).

3. Classification according to specifications

0#, 2#, 3#, 4#, 5#, 7#, 8#, 9#, 10#, 20#, 30#, the size of the model is proportional to the size of the zipper teeth, the larger the model, the larger the zipper teeth.

4. Classification by structure

1. Closed zipper. The backyard is fixed and can only be pulled away from the front yard ends. In the fully opened state of the zipper, the two chain belts are connected by the backyard and cannot be separated. Suitable for normal bags.

2. Open the zipper. There is no back code at the lower end of the tooth chain and a tight lock is set. When the locking part is locked, it is equivalent to a closed zipper, and the slider is pulled against the locking part to separate the locking parts, and the chain belt can be separated. Ideal for clothing or items that often need to be pulled apart.

3. Double zipper. There are two pulls that can be opened or closed from either end. Fully open by pulling both sliders against the latch to separate them. Ideal for large bags, bedding, tents, and more.

5. Classification by function

1. Self-locking zipper.

2. No lock zipper.

3. Semi-automatic locking zipper.

4. Invisible zipper.