Crystal sticker is a kind of decoration that uses glue, white ink, varnish, etc. to print patterns, trademarks, etc. layer by layer on special PP release paper, then covers it with transfer film, and then uses the transfer film to lift the pattern and attach it to the surface of the object. Craftsmanship. It can realize printing in one piece without plate making, which greatly saves all kinds of tedious operating steps and processes, whether it is a LOGO trademark or a gradient pattern, “matte mode”, “glossy mode”, “matte mode”, etc. Various modes of effects can be achieved.