BIAXIALLY STRETCHED POLYAMIDE RESIN FILM HAVING GAS BARRIER PROPERTIES AND PROCESS FOR PRODUCING THE BIAXIALLY STRETCHED POLYAMIDE RESIN FILM

摘要

A gas-barrier biaxially oriented polyamide resin film and a method for producing the same. The film has a gas barrier coating layer formed on at least one surface of a biaxially oriented polyamide resin film, a thickness of 0.5 to 5 占 퐉, and a monomer extraction amount of the polyamide resin film of 0.1 mass% or less. The manufacturing method includes a monomer removing process, a biaxial stretching process, a laminating process of an anchor coating layer and a laminating process of a gas barrier coating layer, which are carried out as necessary, of an unstretched polyamide resin film in this order.