| abstract |
[PROBLEMS] To provide a transparent barrier film having excellent transparency and excellent gas barrier properties against oxygen gas, water vapor, etc. even when a biaxially stretched polypropylene film is used as a base film. It is. SOLUTION: The transparent barrier film is characterized in that a thin film of silicon oxide is provided on one surface of a biaxially stretched polypropylene film by a plasma enhanced chemical vapor deposition method. , At least an oxygen gas, an inert gas, and a mixed gas composition for vapor deposition containing a vaporized monomer gas, in which the amount of oxygen gas is in the range of 65% or more in the composition of the mixed gas composition for vapor deposition. The present invention relates to a transparent barrier film, comprising a continuous thin film of silicon oxide supplied by plasma enhanced chemical vapor deposition. |