POF heat shrinkable film has the advantages of high transparency, high shrinkage rate, high toughness, high heat-sealing performance, antistatic and cold resistance, and is a safe and reliable soft shrinkable film. What about the performance characteristics and production process of POF? Industry experts explain to you one by one.
POF is the heat-shrinkable film, the full name of the multi-layer coextruded polyolefin heat-shrinkable film, which uses linear low-density polyethylene as the middle layer (LLDPE), co-polypropylene (pp) as the inner and outer layers, and is molded by three extruders It is a new type of environmentally friendly shrink film that is widely used in the world and developed rapidly.

This product adopts the advanced bidirectional stretching three-layer melt co-extrusion special process to produce a flexible shrink film with high transparency, high shrinkage, high toughness, high heat-sealing performance, excellent antistatic, cold resistance, safety, and reliability.

Comparison of POF heat shrinkable film and PVC heat shrinkable film

  • 1. Cost: PVC is more important than POF, and the unit cost is high.

  • 2. Puncture resistance: POF is thin and tough, soft, high in tensile strength, thick and brittle in PVC, uneven in thickness, low in strength, and poor in puncture resistance.

  • 3. Cold resistance: POF has excellent cold resistance, and is not hard or brittle at -50 ℃, and is not easy to break. It can be used for frozen food packaging. After shrink packaging, the packaged objects are stored at -50 ℃ -95 ℃ for a long time, which is stable and unchanged. PVC is very brittle and easy to break at low temperatures.

  • 4. Processing performance: POF processing performance is also better than PVC.

  • 5. Safety performance: After POF shrink packaging, the four corners of the seal are soft and will not cut people’s hands, while the corners of PVC film are sharp and easy to cut.

  • 6. Environmental protection and hygienic performance: POF meets FDA standards, which is hygienic and safe. Harmful gases will be generated during PVC processing, which is not environmentally friendly.

Shrink film packaging for food
Shrink film for food packaging