PVDC description & application
  More and more attention is payed to packing materials,specially for food,Cigarette and medicines in the world.Because of behindhand packaging technology,bad packing method,quite a bit food is lost every year.People are paying more attention to outside packing,and packaging material means quality of product and show image of enterprise and the.PVDC coated film is a kind of "green" plasic packing material.
  Besides property of common plastic,PVDC is high-obstructive,well-keep fragrant,oil resistance,friction-proof,damp & mildew proof,easily printed and heat-sealed.Its great advantages compared with other materials.

Item	BOPP		BOPET		BOPA
	Non-coated	Coated	Non-coated	Coated	Non-coated	Coated
WVTR	4.7-7.0	4.7-6.2	35	4.5	372-403	11
OTR	2000	12.4-7.8	110	5	40.3	5

  From the list.It's obvious to find obstructive capacity of PVDC is several times,even hundreds of times to common packing materinls.When PVDC is used to pack food,it can keep food color,fragrant and taste as before,so it can prolong storage time and decrease loss of food.
  It does not need special request for equipment and ink to print PVDC coated film,so efficiency of production can be raised,and cost can be reduced.PVDC is nonpoisonous and reliable,so it is used widely in packing food,cigarette,chemical industry,cosmetics,medicine and hardwares as "green" packing material.
  Complex packing with PVDC will spend less materials than other packing with PE-film,paper and aluminium.