TRANSFUSION FLUID PACKING MATERIAL HAVING BARRIER PROPERTIES

摘要

PURPOSE:To improve barrier properties by arranging an ethylene/vinyl alcohol copolymer to a central part and arranging an ethylene/vinyl acetate copolymer on both sides thereof. CONSTITUTION:A packing material consists of a base material and the polyethylene layer and ethylene/vinyl acetate copolymer layer successively extruded and laminated to both surfaces of the base material and the base material is composed of a co-extrusion film constituted of an ethylene/vinyl alcohol copolymer layer and the polyethylene layers arranged to both surfaces of the ethylene/vinyl alcohol copolymer layer. Since oxygen permeability is reduced by this constitution, this packing material is excellent in barrier properties and good in the preservability of a transfusion and generates no chlorine gas at the time of incineration to show excellent preservation of environment.