3D lens film also named cat-eye film is an international trendy decorative material that achieves a stereoscopic visual effect through the imaging technology of an optical lens array. Its core feature is that through the wide-angle effect of the lenses, several reduced-sized mirror images are formed on the surface of the observed object, creating a dynamic light and shadow effect similar to that of a cat’s eye [1-2]. This material is mainly based on colorless transparent pvc/pp and can be enhanced in terms of decoration by aluminizing or coloring. It supports various printing processes such as offset printing, intaglio printing, flexographic printing, special printing, and hot stamping.
