How Traditional Bottle Caps Are Transitioning to Tethered Caps

Tethered cap packaging ensures that the bottle cap remains firmly attached to the bottle throughout its entire use cycle. Consumers can no longer remove or discard the cap independently; instead, the cap is recycled together with the bottle as a single unit. After sorting and specialized processing, the cap and bottle enter a new plastic recycling loop.
This significantly increases the recovery rate of bottle caps, reduces environmental impact, and creates considerable economic benefits.

Today, a growing number of European plastic beverage container manufacturers are accelerating technological innovation to meet this emerging opportunity and challenge. They are developing a broader range of tethered-cap solutions, many of which feature creative and sophisticated designs. As the industry shifts from traditional caps to tethered caps, new engineering solutions have already emerged to address the challenges ahead.

Tethered Cap Solutions: New Designs for a New Era

1. Screw-Type Tethered Cap Solution

The screw-type tethered cap solution enables producers of carbonated soft drinks, bottled water, and sensitive beverages to retain their existing bottle neck finishes. With Sidel’s tethering technology, the cap structure can be upgraded without changing the bottle mouth design.
This solution maintains excellent tightness and sealing performance while enhancing production efficiency across beverage lines.

2. Snap-Type Tethered Cap Solution

The snap-type tethered cap solution is tailored specifically for bottled water producers.
Consumers can close the cap simply by pressing down on the top, and the inner locking structure ensures a secure seal between the cap and the bottle neck.
This design performs exceptionally well even on high-speed production lines. It is highly flexible in terms of engineering configuration and offers strong sustainability benefits along with improved consumer convenience.

3. “Hybrid Design” Tethered Cap Solution

The “hybrid design” solution combines the sealing reliability of screw caps with the easy-open convenience of snap caps.
It ensures excellent product protection while maintaining user-friendly operation, making it ideal for premium or specialized packaging applications.