High-transparency low-rainbow stripe scratch-proof optical curved screen protection film and preparation method thereof

The invention discloses a high-transparency low-rainbow stripe scratch-proof optical curved screen protection film and a preparation method thereof in the technical field of screen protection films. The screen protection film comprises a substrate layer and a functional layer, wherein the substrate layer is a release base film layer; the functional layer sequentially comprises a pressure-sensitivesilicone layer, a base film layer, a scratch-resistant coating and a protective layer in a direction far away from the substrate layer. The preparation method comprises the following steps: coating the scratch-resistant coating on one side of the base film layer, coating the pressure-sensitive silicone layer on the other side of the base film layer, laminating the release base film layer onto thepressure-sensitive silicone layer, laminating the protective layer onto the scratch-resistant coating, and forming a protection film structure; performing slice cutting, hot pressing and punch forming on the protection film s