The comprehensive introduction of beer cap (crown cap) and its advantages
3、 Advantages of Crown Cap
Why has it been able to dominate the market for over 130 years?
Excellent sealing performance: able to reliably withstand internal pressures up to 6-8 atmospheres.
Extremely high production efficiency: can be perfectly matched with high-speed filling lines (tens of thousands of bottles per hour), and the capping process is completed instantly.
Durable and sturdy: easy to transport and stack, not easily damaged.
Easy to open: Only one bottle opener is needed, with simple operation and a sense of ceremony.
High cost-effectiveness: The cost of large-scale production is extremely low.
Strong brand recognition: The top cover is an excellent printing area for displaying brand logos, slogans, or marketing messages.
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4、 Production process and usage flow
1. Cover making: Stamping the rolled tinplate into a cover blank, printing, installing or coating sealing gaskets.
2. Filling: Beer is poured into the bottle at low temperature and immediately enters the capping machine.
3. Capping: The magnetic head of the capping machine aligns the bottle cap with the bottle mouth, and uses mechanical pressure to press * * 21 folds * * inward, tightly gripping the flange below the thread of the bottle mouth. At the same time, the gasket is flattened and fills all micro unevenness at the bottle mouth, forming a seal.
4. Opening the lid: The lever of the bottle opener lifts the wrinkles, breaks the seal, and releases pressure.
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5、 Development Trends and Innovation
1. Material environmental protection:
Remove PVC from gaskets: switch to PE, PET, and coated gaskets.
Lightweight shell: reduce steel usage.
Recyclability: Optimize materials for easy separation and recycling from glass bottles.
2. High end functionality:
Oxygen absorbing caps have become an important technology for extending the shelf life of beer.
Flavor preservation covers (such as specially coated gaskets) are used for craft beers that are extremely sensitive to oxygen (such as IPA, Imperial Sento).
3. Design and Experience Innovation:
Pull ring crown cap: No need for bottle opener, convenient for outdoor drinking.
Colorful metal, full top printing, relief effect, etc. enhance visual effects.
Smart cover: Integrated NFC chip or QR code for anti-counterfeiting, traceability, and interactive marketing.
6、 Cultural symbolism
The "bo" of the crown lid and the accompanying foam have become the universal sensory signals to open the happy time. It is not only an industrial component, but also an important icon of beer culture.
In summary, the crown cover is an engineering model that perfectly combines simplicity, reliability, efficiency, and economy. From its initial invention to preserve carbonated beverages, to today's integration of cutting-edge materials science to protect the most exquisite flavors, it has always been an indispensable bridge connecting winemakers' ingenuity and consumer experience.
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