Why the pof shrink film has the loose problem after shrinking process?

1.Freezing product wrapping

When we are packaging the product with extremely low temperature such like the seafood,ice cream ,the freeze production itself will absorb the much heat energy to unlock its freezing condition in the heat shrink tunnel ,which lead to the pof shrink wrap film got insufficient heat that required to wrap the product in a compact and tight way.

2.Metal box wrapping

It has the same work principle when packaging the metal box with pof shrink film that the metal box will snatch much heat from pof shrink film that covered outside when in shrinkage step,causing the loose problems.

So we need to select the correct POF shrink wrap film with wide operate temperature window that once it achieved less heat,it can sufficiently shrink and tightly wrap the products.Our shrink film can help clients to improve the loose problems and give perfect wrapping result.