| 摘要 |
PROBLEM TO BE SOLVED: To prepare a window film, capable of reducing the reflection of infrared rays and weakening the intensity of concentrated infrared rays even at the time of exposing the film surface to sunlight when applied to the inside of a curved glass window by forming a light reflecting layer and an infrared ray absorbing layer. SOLUTION: This window film is obtained by forming a light reflecting layer (layer A) such as an aluminum metal vapor deposited layer having 0.001-0.1μm thickness and an infrared ray absorbing layer (layer B) such as a film layer containing an infrared ray absorber (e.g. tin oxide, indium oxide, phthalocyanines or anthraquinones) incorporated in a transparent film or a coated layer or a printed layer containing the infrared ray absorber therein. The window film is concretely composed by forming, e.g. the layer B 2 on one surface side of the layer A 1 and forming an adhesive layer 4 through a transparent substrate film 3 on the other surface side of the layer A 1. |
