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| Structure | Introduction | Function | ||||
| Top Disc | This is the most important part of the bottle cap and is where we touch it when we unscrew it with our hands. | Provides grip (via vertical ridges on the sides or non-slip bumps) and serves as the primary structural foundation. | ||||
| Skirt | The cylindrical part that connects to the top and extends downward. | The vertical lines or patterns on the outside of the sidewall are used to increase friction and make unscrewing easier. Its inner part is the main part of the thread. | ||||
| Tamper-Evident Band /Safety Ring |
This is the most intricate part of the bottle cap, used to provide visual evidence of whether it has been opened. | It is connected to the lower edge of the main side wall by a series of very thin "bridges". The internal structure of the anti-theft ring is a circle of inward barbs (Ramp) or protrusions on the inner wall. | ||||
How it work
1.When a new cap is screwed onto a bottle, presses the ring downward, forcing it to slide over a raised locking bead below the bottle's threads.
2. Once it slides over, the barbs inside the anti-tamper ring are trapped by the locking bead, preventing further upward movement.
3. When you first unscrew the cap, the main sidewall moves upward, but the trapped anti-tamper ring prevents it from following.
4. This upward force instantly breaks the delicate "bridges" connecting the cap and the anti-tamper ring, completely separating the cap and the ring, confirming that the bottle has been opened for the first time.
Foshan Honsen Plastic Industry Co., Ltd. is a professional preform manufacturer with a reliable business scope. The company's main business scope is the production and development of PET preforms, PET plastic bottles, and packaging for drinking water and beverage products. We are Manufacturers and Custom Factory. Honsen is committed to technological innovation and product quality improvement, providing customers with innovative and environmentally sustainable packaging solutions. We use advanced production equipment and processes to ensure reliable product quality. Whether it is from raw material procurement to production process control, we take it seriously to follow industry regulations to ensure product safety and environmental performance. Whether you need a large number of standardized preforms or special customized products, we can meet your needs. If you are looking for a high-quality, safe and harmless food-grade plastic container, please feel free to contact our sales manager for more information.
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