Plastic cap is a common packaging form for bottles, cans and barrels, especially in the beverage, chemical and pharmaceutical fields. It can be divided into breathable plastic cap and impermeable plastic cap according to its use
definition
The plastic cover is generally made of polyolefin as the main raw material and processed by injection molding, hot pressing and other processes. The plastic anti-theft cover should not only be easy for consumers to open, but also avoid the leakage problem caused by poor sealing performance. How to reasonably control the sealing performance of bottle cap is the key point of online or offline detection of production units.