| 摘要 |
PURPOSE: An environment-friendly multi-layer barrier film is provided to improve barrier ability against gas and moisture more, by controlling the thickness of a PVOH layer. CONSTITUTION: An environment-friendly multi-layer barrier film comprises a first resin layer, and a second resin layer. The first resin layer consists of polyvinylalcohol of which melting temperature is 170°C - 220°C, and the thickness is 100nm - 100um. The second resin layer consists of polyethylene terephthalate of which melting temperature is 205 °C or lower. The outermost layer of the both side is a second resin layer. One side or both side of the outermost layer, a hydrophobic polymer film is coated. The hydrophobic polymer film consists of an acryl based, polyethylene based, or polypropylene based polymer. |
