It is worth noting that each type has its advantages, but when installing zippers with a sewing machine, resin zippers, and metal zippers need to be hand-operated to pass the needle through the machine
Nylon zippers, resin (plastic teeth) zippers, metal zippers.
It is worth noting that each type has its advantages, but when installing zippers with a sewing machine, resin zippers, and metal zippers need to be
The nose of the slider has a small self-locking stopper. Under the action of spring force, it can automatically embed between the chain elements to lock the slider. When opening and closing the zipper
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.
If high-tension zipping is required (tighten the middle zipper on both sides). Increase the safety factor during design and avoid using reverse zippers