Degradable PE films

   

 

These films are oxo-degradable. They will degrade faster than normal plastic films. In certain conditions, it seems this process can be accelerate. However, oxo-degradable films do not fullfill the condition of the European Directive and its norm EN 13432.

This standard specifies the biodegradation must reach 90% in six months in a compost.

Oxo degradation will improve the biodegradation regarding normal plastic film by breaking the polyolefin carbon chain..

 
  • LFT : Lay Flat Tube. This is the basic product obtained by blown extrusion, a tubular film. At the end of the process, the plastic film is winded on a core and flattened.
 

How does it works :

The strength of the polyolefine films (polyethylene, polypropylene) is mainly due to chains of carbon. Carbon molecules develop very strong bridges between them which are difficult to break.

By introduction of an additive between the carbon molecules, the chain will be easier to break.

A stabilizer is also introduce to aviod degradation during a period of time.

All polyethylene films :

All polyethylene films can be transform in oxo degradable.
  • CFS : Centre fold sheet. It is a lay flat tube cut (or opened) on one side.

 

  • SWS : Single wound sheet. This film is obtained when both edges of a lay flat tube (or tubular film) are cut. Each film is then winded on a core.