Preparation method of color function layer of window film, window film comprising color function layer and preparation method of window film

The invention provides a preparation method of a color function layer of a window film, the window film comprising the color function layer and a preparation method of the window film and relates to the technical field of functional films. Firstly, color paste is dispersed in a glue system, a color function layer mixed material is obtained, and the color function layer mixed material is cured andapplied to a substrate layer. The color function layer prepared with the method has the advantages of bright color light, light fastness and good uniformity, and a process is simple and suitable for large-scale production. The window film comprising the color function layer also comprises a UV blocking function layer and an anti-scratch function layer. The window film is not prone to fading when exposed under the action of air, sunlight, heat, water vapor and the like, particularly under UV irradiation. The window film is prepared through combination of the color function layer, the UV blocking function layer, the ant