SYNTHETIC RESIN CONTAINER WITH HIGH BARRIER CAPABILITY

摘要

There is provided, in a simple manner, a synthetic resin container which improves a vapor barrier property while maintaining a gas barrier property against oxygen or the like at a high level. The present invention is a PET bottle having a barrier film 2 formed on an inner surface of a wall portion 1 constituting a container body made of PET resin by a plasma CVD method with organic silicon compound gas and oxygen gas as raw materials, the barrier film containing silicon oxide in which a compositional ratio of oxygen among silicon, oxygen and carbon is not less than 50 atom% and a compositional ratio of carbon among silicon, oxygen and carbon is not less than 3 atom% and not more than 20 atom%. Preferably, compositional ratio of carbon in the barrier film 2 is not more than 8 atom%.