PACKAGING MATERIAL POSSESSING PROPERTY SUPERIOR IN GOOD SMELL RETAINING PERFORMANCE

摘要

PURPOSE:To improve good-smell retaining capacity of various packaging body, and enable moreover easy molding of the packaging body, by a method wherein the title packaging material is constituted of a base material for the packaging material and a laminated resin layer stuck to one surface of the base material for the packaging material. CONSTITUTION:A laminated resin layer to be laminated to a base material for a packaging material is comprised of a first resin layer with ethylene-vinyl alcohol copolymer, a second resin layer with adhesive polyolefin resin laminated to the first resin layer and a third resin layer with the ethylene-vinyl alcohol copolymer laminated to the second resin layer, in a packaging material. The first resin layer is laminated to the base material for the packaging material through an adhesive agent layer so that the first resin layer becomes the outermost layer. When ethylene content is less than 40mol%, a temperature required for heat sealing becomes high and when the same exceeds 60mol%, adsorbing tendency of a perfuming ingredient in an inner filling material, in the ethylene-vinyl alcohol copolymer constituting the first resin layer superior in good smell retaining performance. Therefore, an ethylene-vinyl alcohol copolymer whose ethylene content is 40-60mol% is preferable.