English (100 characters): PE shrink film from China provides reliable packaging, excellent shrinkage, and durable protection.

Introduction:
 The growth of high-speed beverage production has made collation shrinking a structural necessity rather than a secondary step. For beverage manufacturers, PE shrink film acts as the key structural element holding multi-pack units together during Heat Tunnel processing, lifting, and palletizing. Film failure during shrinking or lifting disrupts production, causes damaged packs, and increases logistics risks. A shrink film engineered specifically for beverage Heat Tunnel applications ensures uniform pack integrity from filling line to distribution.

Engineered for Stable Heat Shrink Performance
Beverage packs passing through a Heat Tunnel endure concentrated thermal energy and heavy bottle loads. Standard films can fail to achieve tight, uniform shrinkage, leading to skewing or tears. PE shrink film is designed for controlled Heat Shrink activation, delivering even contraction around collated units without distortion. Key technical parameters include COF 0.6–0.8 for smooth handling, film thickness 50–100 μm, and tensile strength MD ≥28 N/mm², TD ≥20 N/mm², ensuring dimensional stability throughout tunnel processing and cooling.

Controlled Shrink Ratio for Consistent Collation
Uneven Shrink Ratio is a primary cause of distorted packs and unstable stacks. Advanced PE shrink film features optimized molecular orientation to synchronize shrink behavior across the pack surface. Typical performance includes:

MD Shrink Ratio: 55–65%

TD Shrink Ratio: 60–70%
This control minimizes Bullseye formation at sleeve openings and maintains uniform pack geometry, supporting automated lifting, conveying, and palletizing operations.

High Holding Force for Heavy Beverage Loads
After Heat Tunnel processing, beverage packs must retain sufficient Holding Force. Inadequate force results in loose packs or sudden tearing when lifted. PE shrink film maintains residual tension after cooling, ensuring secure collation of bottles under dynamic load. Key performance parameters include Holding Force ≥15 N and puncture resistance ≥18 N (TD direction), preventing failures during lift-and-carry operations.

Mechanical Strength for Reliable Post-Tunnel Handling
Heavy beverage packs are prone to tearing when handled immediately after shrinking. PE shrink film incorporates enhanced puncture and tear resistance to withstand bottle edges and tray contact stress. This ensures reliable performance across the logistics chain, reducing rework and protecting product integrity.

Practical Specifications for Automated Heat Tunnel Lines
PE shrink film is compatible with high-speed Heat Tunnel lines. Controlled COF and uniform thickness ensure smooth feed through automated systems, minimizing jams and production downtime. Its consistent Heat Shrink performance and high Holding Force support stable line operation, even for heavy-duty collation scenarios.

Conclusion: In beverage production, collation shrinking is a structural requirement. Using inappropriate film can cause loose packs, uneven shrink, and failure during lifting. Investing in PE shrink film with controlled Shrink Ratio, reliable Heat Shrink behavior, sufficient Holding Force, and proven mechanical strength ensures consistent pack integrity from tunnel exit to palletizing. For optimal results, contact the Ruida technical team to obtain test samples compatible with automated packaging systems and experience a more reliable and efficient packaging solution.