| abstract |
(57) [Abstract] [Purpose] As a film for transparent retort packaging having excellent barrier properties, a SiOx layer 2 having excellent spreadability and flexibility is formed on a vapor deposition film 1, and the film is processed, bag-formed, filled, Provided is a film which follows expansion and contraction during retort treatment and does not deteriorate in barrier properties. A transparent barrier layer provided on at least one surface of the substrate film 1 by a plasma chemical vapor deposition method is a compound composed of silicon oxide and one or more elements selected from carbon, hydrogen, silicon and oxygen. A continuous layer containing (S The iOx layer 2) and the heat seal resin layer 6 are laminated via the reaction-curable adhesive layer 4. |