| 摘要 |
<p>PURPOSE:To obtain a vessel having excellent scent-retaining property and strength as well as excellent gas barrier property without use of a metallic foil, by providing a barrier layer containing an ethylene-vinyl alcohol copolymer resin on the innermost side of a vessel, and laminating a base material for a packaging material so as to externally cover the barrier layer through an isocyanate adhesive layer therebetween. CONSTITUTION:A vessel has a barrier layer 2 containing an ethylene-vinyl alcohol copolymer resin, on its innermost side to be brought into direct contact with the contents of the vessel. A base material 4 for a packaging material is provided on the outer side (vessel exterior side) of the barrier layer 2, with an isocyanate adhesive layer 3 therebetween. The base material 4 is formed as a three-layer laminate having olefin resin layers 43 and 45 on both sides of a support 40, which may generally be a paper, a biaxially stretched polyester film, a biaxially stretched polypropylene film or the like. It is preferable to apply a corona discharge treatment to one side (the polyolefin resin layer 43) of the base material 4 which is brought into contact with the adhesive layer 3. This treatment produces a further increase in bond strength.</p> |
