Plastic Press Cap is a common packaging form for bottles, cans, and barrels, especially in the fields of beverages, chemicals, and medicine. It can be divided into breathable plastic caps and airtight plastic caps according to their uses.

1. Performance characteristics
(1) There is an annular leak-proof ring on the top inner wall of the general plastic cover; there are also ordinary plastic bucket covers that need to match the inner cover, so there is no need to design a leak-proof ring;
(2) The lower end of the plastic cover is connected to an anti-theft ring through a tensile rib;
(3) At the same time, a number of sheet-like gyratory tension wings are evenly distributed on the inner wall of the anti-theft ring; the plastic bucket lid designed in this way has firm sealing, good leak-proof and anti-theft performance, safe and convenient use, and can effectively prevent liquid in the container. Free from external pollution, it can ensure that the packaging of various liquid products meets the national safety standards and other characteristics.

2. Bottle cap detection
So how to reasonably control the sealing performance of plastic caps is the focus of online or offline testing of production units. For plastic anti-theft bottle caps, because of the need to test the degree of sealing, a positive pressure sealing tester is used, but the positive pressure sealing tester in the market is The tester directly injects compressed air into the sealed container so that it will inevitably explode when the container is defective. According to expert calculations, if a 2.5-liter Coke bottle explodes at 1.2MPa, its destructiveness is quite high. At 100-150 grams of explosives.