In the development of plastic box technology for many years, many new technologies have been widely used. At present, the two most popular technologies are film mulching and bronzing. After the plastic box is wrapped, it can cover a transparent film on the surface of the box. It can make the surface of the box more beautiful and smooth, and increase the effect of a layer of surface protection box. The bronzing process is usually applied to Logo or some patterns, which can highlight Logo or patterns, printed on the box like gold sequins.