The surface of PE materials is often smooth and has certain anti-adhesion properties, which may cause incomplete hot stamping during heat transfer. This may be due to the fact that the heat transfer temperature is not high enough or the time is not long enough, resulting in weak hot stamping. In addition, it is also possible that the heat transfer mold used is not flat enough or not suitable for the surface characteristics of the PE material, resulting in incomplete hot stamping of some patterns. Solutions include adjusting the heat transfer temperature and time, selecting a suitable heat transfer mold, or performing flame treatment on the surface of the PE material to increase heat transfer adhesion.