Polyolefin shrink wrap film is a sort of shrink film which regarded as a sustainable plastic shrink wrap material,it is easy to degrade in the natural environment when preserving in a certain period.it is mainstream shrink film that is leading the package trend in the shrink film wrap industry now thanks to its super clarity,high heat shrinkage and non poison chemical property.

 

Now we take some comparison with PE/PVC to figure out why the Polyolefin shrink film(pof heat shrink film)can stand out from the other shrink wrap film materials.

 

 

Physical performance

POF

Thin and tough,Homogeneous thickness,Good moisture resistance,High tensile strength,Good tear resistance,Adjustable thermal shrinkage rate ,Good rub resistance due to LLDPE

 

PE

Thickness and tough,Homogeneous thickness,Good moisture resistance,High tensile strength,

Tear resistance is lower than POF but much higher than PVC

Bad adjustable thermal shrinkage rate,Lower Rub resistance

 

PVC

Thickness and tough,Inhomogeneous thickness,Bad moisture resistance,Low tensile strength,

Low Rub resistance

 

Cold resistance

POF

Excellent cold resistant ,No embrittlement happen even under condition of -50℃,being used in freeze food pack.The products that packed with pof shrink film suit for long time preservation in temperature range From -50℃ to 95℃ without any deformation Through the electrostatic and

anti-fog handling to prevent dust contamination for maintaining good product appearance.

 

PE

Excellent cold resistant ,No embrittlement happen even under freeze conditionNo breakage in the transportation process Through the electrostatic and anti-fog handling to prevent dust contamination for maintaining good product appearance.

 

PVC

Bad cold resistance ,Embrittlement happen even under freeze condition.Easy to be fracture in transportation process.The product packed by PVC can be gradually tightened as time going ,causing deformation problem.Easy to get contaminated

 

 

Process performance

POF

No moisture caused in Processing procedures ,no adhesive to the seal bar, easy maintenance work.Good toughness, smoothness, rub resistance suit for high speed packing production line

 

PE

No moisture caused in Processing procedures ,no adhesive to the seal bar, easy maintenance work.Good toughness, smoothness, rub resistance suit for high speed packing production line

 

PVC

No moisture caused in Processing procedures ,no adhesive to the seal bar, easy maintenance work.Good toughness, smoothness, rub resistance suit for high speed packing production line

 

Safety performance

POF

After shrink, the seal position appear to be quick soft won’t cause any incised wood accident

 

PE

After shrink, the seal position can be quick soft won’t cause any incised wood accident

 

PVC

After shrink ,seal position can be sharp and hard ,easy to cause the incised wood accident.

 

Environment protection

POF

Nontoxic ,no poison gas caused in process procedure ,complying with FDA and USDA standard

 

PE

Nontoxic ,no poison gas caused in process procedure ,complying with FDA and USDA standard

 

PVC

Toxic and smelly gas caused in process production.

 

Cost

POF

Density 0.92,Minimum thickness 0.012mm,low cost

 

PE

ensity 0.92,Minimum thickness 0.03mm,high cost

 

PVC

Density 0.92,Minimum thickness 0.03mm,high cost