Zipper was selected as one of the great ten innovations in the 20s century. In 1893, American engineer Whitcomb L. Judson designs a quick sliding open-close system taking advantage of concave and convex tooth cross joint principle. That is early zipper, which has been changed over the centuries of traditional connection concept. In 1912, Swede Gideon Sundback improves the invention who designs a set of zipper teeth, which make zipper strong, reliable and beautiful. New things are not easy accepted by people, zipper is well known through military uniform. After 1931, zipper is widely accepted around the world, and it is gradually applied to other industries. Now each year’s world zipper total length is over 400,000 kilometers.

Safety and Monitoring of Zipper Machinery