| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a longitudinally drawn and vacuum-vapor coated package film having high gas barrier properties and exhibiting improved mechanical properties. SOLUTION: The longitudinally drawn and vacuum-vapor coated package film is a multilayer film having good barrier properties and oriented in a longitudinal direction. This film is manufactured by a step (a) of manufacturing a laminate of a structure of a first polyamide layer, an EVOH layer and a second polyamide layer by co-extruding, a step (b) of orienting the laminate in the longitudinal direction, and a step (c) of applying an inorganic layer to one of the surfaces of the drawn laminate by vacuum-vapor depositing.</p> |
