The quality control scope of zipper mainly includes: the specifications and models of zipper, the strength of zipper, the flatness of zipper, the color of zipper and zipper belt, the appearance of zipper... And so on several aspects. What are the main evaluation methods of zipper quality? What should we pay attention to when purchasing zippers?

The first is the specifications and models of the zipper. The specifications of the zipper refer to the width size and size range of the tooth chain after the two teeth are closed. The measurement unit is millimeter. The type of the zipper is an important reflection of the shape, structure and performance characteristics. The type of the zipper not only contains the specifications of the zipper chain, but also reflects the performance characteristics of the zipper chain, that is, the technical parameters and use functions of the zipper.