Plastic caps are currently commonly used packaging forms for bottles, cans, and barrels, and are especially widely used in beverage, chemical, and pharmaceutical fields. According to their uses, they can be divided into breathable plastic caps and air-impermeable plastic caps. Plastic caps are generally made of polyolefin as the main raw material and are processed by injection molding, hot pressing, and other processes. The plastic anti-theft cover is required to be easy for consumers to open, but also to avoid leakage problems caused by poor sealing performance. How to reasonably control the sealing performance of the bottle cap is the focus of the online or offline inspection of the production unit.
Cosmetic Pump Factory introduces the performance characteristics of plastic caps:

1. There is a ring-shaped leak-proof ring on the inner wall of the top end of the general plastic cover; there are also ordinary plastic bucket covers that need to be matched with the inner cover, so there is no need to design a leak-proof ring;

2. The lower end of the plastic cover is connected with an anti-theft ring through a tension stiffener;

3. At the same time, there are several flaky gyrating pull wings evenly distributed on the inner wall of the anti-theft ring;

Cream Pumps Manufacturers introduced that the plastic pail lid designed in this way has strong sealing, leak-proof and anti-theft performance, safe and convenient to use, can effectively prevent the liquid in the container from external pollution and can ensure that the packaging of various liquid products meets national safety standards, etc. Features.

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