Vapor-deposited foamed body

Abstract

A vapor-deposited foamed body having a film 15 vapor-deposited on the surface of a foamed plastic formed body 10 containing foamed cells 1 therein, wherein in the surface X of the foamed plastic formed body 10 serving as the under-layer on where the film 15 is to be vapor-deposited, the porosity of the foamed cells 1 is suppressed to be not more than 30% in the surface layer portion 10 a to a depth of 50 μm from said surface. The vapor-deposited foamed body is obtained by vapor-depositing the film on the surface of the foamed plastic formed body such as a foamed container, the vapor-deposited film being uniformly formed and being effectively prevented from peeling off.

1 . A vapor-deposited foamed body having a film vapor-deposited on the surface of a foamed plastic formed body containing foamed cells therein, wherein in the surface of the foamed plastic formed body serving as the under-layer on where the film is to be vapor-deposited, the porosity of the foamed cells is suppressed to be not more than 30% in the surface layer portion to a depth of 50 μm from said surface. 
     
     
         2 . The vapor-deposited foamed body according to  claim 1 , wherein said vapor-deposited film is a metal oxide film or a hydrocarbon film formed by the plasma CVD method. 
     
     
         3 . The vapor-deposited foamed body according to  claim 1 , wherein said foamed plastic formed body has been stretch-formed. 
     
     
         4 . The vapor-deposited foamed body according to  claim 1 , wherein said foamed plastic formed body is a container. 
     
     
         5 . The vapor-deposited foamed body according to  claim 1 , wherein said foamed plastic formed body is a container, and said film has been vapor-deposited on the inner surface thereof that comes in contact with the content. 
     
     
         6 . The vapor-deposited foamed body according to  claim 1 , wherein said vapor-deposited film has a thickness in a range of 10 to 50 nm.