Intermediate layer for laminated glass and laminated glass

Abstract

An intermediate laminated glass film is provided that is capable of suppressing blurriness in appearance caused by light and double images. Thus, a laminated glass interlayer (11) equipped with a first layer (1) containing a thermoplastic resin and a plasticizer, and a second layer (2) containing a thermoplastic resin and a plasticizer, wherein the minimum thickness of the first layer (1) is 20 μm or greater, and given that the ratio between the thickness of the first layer (1) at one end (11a) of the interlayer and the thickness of the interlayer itself at that end (11a) is ratio A, and the ratio between the thickness of the first layer (1) at the other end (11b) of the interlayer and the thickness of the interlayer itself at that other end (11b) is ratio B, then ratio B is not less than 1.1 times and not greater than 1.7 times ratio A when the wedge angle is from 0.1 to 0.5 mrad, inclusive,The ratio B is not less than 0.8 times and not greater than 1.1 times the ratio A when the wedge angle exceeds 0.5 mrad, and the plasticizer content of the first layer (1) is greater than the plasticizer content of the second layer (2).

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