The zipper is composed of chain elements, sliders, upper and lower stops (front and rear codes), or locking parts. The chain elements are the key part, which directly determines the side pull strength of the zipper.
In 1891, Whitcomb Judson (1846 ~ 1909) in the United States invented the zipper to solve the inconvenience of the long boots. However, his invention at that time looked very different from the current zipper
Nowadays, various styles of zippers have become an important element of inspiration for designers. We are so familiar with how to use a zipper that it now seems as subconscious as walking.
Zippers are indispensable when playing with fabrics. As a "professional" craftsman who owns a sewing machine, who hasn't installed a few zippers? If you make your clothes, bags, bedding, or even if the zipper of a family member's skirt or trousers is broken