Pvoh coated polyester barrier films

摘要

Polyvinyl alcohol (PVOH) coated polyester films are excellent barrier films for packaging applications at low to moderate humidity conditions.They are a viable,non-chlorine containing alternative for PVDC coated films in many applications.When metallised with aluminum,this film exhibits oxygen barrier at least 5 times better than conventional metallised uncoated polyesterl; with improvements also in metal adhesion and flex crack resistance.