Ice lolly packaging film

Ice lolly packaging requires multi-layer composite structures to ensure durability and barrier properties. The most common materials include BOPP/VMCPP (for metallic finish and moisture barrier) or PET/PE (for high transparency and seal strength). You must ensure the film has a thickness range of 30-50 microns to balance cost-efficiency with puncture resistance, especially for products with sharp edges or wooden sticks.

Since the film is in direct contact with food, it must comply with FDA (U.S. Food and Drug Administration) or EU Regulation No 10/2011 standards. Ensure the supplier provides a Declaration of Compliance (DoC) and SGS/TUV test reports verifying that the migration of chemicals (like phthalates or heavy metals) is within safe limits. For the printing layer, food-grade, solvent-free inks are mandatory to prevent odor transfer to the ice lolly.

The Coefficient of Friction (COF) is a critical technical parameter for high-speed Vertical Form Fill Seal (VFFS) machines. A COF that is too high causes dragging, while a COF that is too low causes slippage. You should request a COF between 0.2 and 0.3 for the outer layer to ensure smooth tracking and consistent bag lengths during high-speed production.

The film must possess excellent low-temperature resistance to prevent brittleness and cracking at temperatures as low as -18°C to -25°C. Additionally, a strong heat-seal strength (typically >15N/15mm) is required to prevent leakage during the expansion of the product when freezing or during rough handling in the cold chain.

Always request a pre-shipment sample from the specific production batch. For large orders, hire a third-party inspection service (like V-Trust or QIMA) to perform a rub test on the printing and a seal integrity test. Using Made-in-China.com's Secured Trading services can also provide a safety net for your payment until the quality is verified.

Negotiate based on Total Linear Meters rather than just weight, as film density can vary. Ask for tiered pricing based on the number of colors in your design, as copperplate (gravure) cylinder costs are a significant one-time investment. For long-term cooperation, negotiate for the supplier to absorb cylinder costs after a certain volume (e.g., 50,000 meters) is reached.

Packaging films are heavy and susceptible to core damage. Ensure the supplier uses heavy-duty plastic or wooden pallets with protective end-caps (plugs) in the paper cores to prevent collapsing. The rolls must be shrink-wrapped and moisture-proofed to prevent humidity from affecting the corona treatment of the film during sea freight.

Do not rely on digital proofs alone. Provide the supplier with specific Pantone Color Codes and request a physical color proof (press proof). Verify the printing registration (alignment of colors) to ensure there is no blurring, especially for small text like ingredients and barcodes.