| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas barrier film, of which gass barrier property is not aggravated in the case of high temperature environment or flexure, having excellent adhesion to an undercoat, high transparency and high gass barrier property.SOLUTION: In a gass barrier film having a gass barrier layer containing a zinc compound and a silicon compound on at least one side of a polymer film base material, when values of a content ratio (Zn/Si) of zinc (Zn) atoms to silicon (Si) atoms obtained at 15 nm interval in a depth direction by the X-ray photoelectron spectroscopy (XPS) are a0, a1, a2, a3, ... , an (a0 is a value at a measurement point in the outermost surface side of the gass barrier layer, and an is a value at the measurement point in the nearest side of the gass barrier layer to an interface with the polymer film base material) in the gass barrier film, all points satisfy following formula: 0.8≥ai-a(i+1)>0, where i is an integer of 0 to n-1. |
