| 摘要 |
The present invention relates to a laminated film and, more specifically, to a laminated film including a material layer including a polyurethane film and a barrier layer formed on one side of the material layer. The laminated film of the present invention is elongated toward one or two axes, and has more than 150MPa of tensile strength, more than 90% of tensile elongation, below 1.00 of friction coefficient, and a thickness of 10 to 50μm. The material layer additionally includes a polyurethane film and a laminated polyester film. The barrier layer is made of an aluminum thin film, and additionally includes a chemically conversion-treated layer formed on one or both sides. The barrier layer and the material layer is attached by a polyurethane adhesive, and on top of the barrier layer is a heat seal layer additionally formed. |
