| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas barrier film that suppresses adhesion and gas barrier performance from deteriorating even in a high-temperature, high-humidity environment.SOLUTION: A gas barrier film (1) according to the present invention is characterized in that a carbon distribution curve among distribution curves of constituent elements based upon depth-directional element distribution measurement by X-ray photoelectron spectroscopy of a gas barrier layer (3) has at least six maximal values, wherein a linear function expression of y=ax+b has a gradient "a" of 0.03-0.70, the linear function expression being derived in a least square method from each of carbon atomic ratios (y) at two arbitrary maximal values present in a region on the opposite side from a base material (2) from a surface of the gas barrier layer (3) to 1/3 of a layer thickness of the bas barrier layer (3), at two arbitrary maximal values present in a region from 1/3 to 2/3, and at two arbitrary maximal values present in a region from 2/3 to the base material (2), and a distance (x) from the surface. |
