METHOD OF PRODUCING GAS BARRIER FILM

摘要

PROBLEM TO BE SOLVED: To provide a method of producing a gas barrier film which has an even gas barrier property in a film width direction and high transparency.SOLUTION: A method of producing a gas barrier film includes a process of forming an inorganic layer on a base material travelling on a coating roll by a vacuum deposition method by using a vacuum deposition apparatus including the coating roll, two or more deposition sources for evaporating deposition material, and two or more gas introducing ports. The method of producing a gas barrier film is characterized by that the two or more deposition sources and two or more gas introducing ports are respectively arranged alternately one by one and oppositely to the coating roll in a width direction of the coating roll.