21 Preservation Secrets in Bottle Caps!

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In supermarkets, bottled water is often labeled with “shelf life of 24 months”. The guardian behind this is not the preservative, but the seemingly ordinary thread on the bottle cap! These 21 threads are no decoration – each with a precise Angle of 55° to 60° can generate just the right radial pressure when tightened, forcing the elastic body inside the bottle cap to deform and form a continuous “invisible sealing band”, firmly locking the microorganisms outside the bottle.

The secret is also hidden in the bottle material: The five-layer composite PET structure makes the molecular gap astonishingly small, allowing less than 0.0001cc of oxygen to penetrate each day (about the size of half a sesame seed), effectively delaying the changes in water quality. The ultimate weapon of modern filling lines is the negative pressure capping technology: first, the residual air in the bottle is evacuated, then nitrogen is injected to isolate oxygen, and finally the cap is precisely screwed on under vacuum conditions. Swiss laboratory tests have proved that the number of colonies in water treated with this process is only 1/2000 of that in water with ordinary caps after three years.

This microbial defense system is moving from high-end water production lines to the general public. The next time you unscrew the bottle

cap, be sure to pay attention to those fine threads – they are precisely the time warriors that silently guard the water quality.

The Great wisdom in the small packaging bags: Exploring the Automatic Liquid Filling Machine

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  The bagged soy milk you drink for breakfast and the soy sauce and vinegar packets you use for lunch, these convenient and hygienic single-dose liquid packages all have a “versatile player” behind them –Water Sachet Filling Machine. It is like a skilled craftsman, capable of automatically completing the entire set of actions including bag making, sterilization, filling, date printing, sealing and cutting with just one roll of film.
  The core advantage of this machine lies in its precision and cleanliness. The food-grade 304 stainless steel body builds the first line of defense for hygiene, while the built-in ultraviolet rays silently disinfect every inch of packaging material. Even more ingenious is its “brain” : Once the parameters are set, the machine can fill liquids of different viscosities with an ultra-high precision of±0.5% (ranging from refreshing beverages to thick sauces), and achieve millisecond-level heat sealing through an intelligent temperature control system, completely bidding farewell to the trouble of leakage. All of this operates efficiently, generating hundreds of complete and aesthetically pleasing small packages every minute.

  This highly automated packaging technology has become the cornerstone for the modern food and beverage industry to enhance efficiency and safety. As an enterprise with profound technical accumulation in this field, Shine Dew is continuously committed to the research and development and optimization of such equipment, contributing to safer and more convenient packaging solutions. Please contact us if necessary.