| 摘要 |
PURPOSE:To make it possible to use as a container, the contents of which are strongly erosive and penetrative, by a method wherein two specified resin layers and an aluminum foil are used in combination. CONSTITUTION:The aluminum laminate concerned consists of an aluminum foil, a first resin layer, which is mainly made of one of ethylene-vinyl acetate copolymer, its acid modification, ethylene-acrylic acid copolymer and acid modified polyolefin and which comes into contact with the aluminum foil, and a second resin layer, which is made of one of polyolefin and modified polyolefin having melting point higher than that of the first resin layer and which comes into contact with the first resin layer. The thickness of the first resin layer is 10mum or more, that of the second resin layer is 5mum or more and the total thickness of the layers is 15-100mum. If the total thickness is below 15mum and the thickness of the first resin layer is below 10mum, not enough contents resistance results. If the total thickness exceeds 100mum, enough adhesion is not obtained. If the thickness of the second resin layer is below 5mum, the resin layer tends to stick to a lamination rollers, resulting in lowering workability. |
