Shape memory film is made from shape memory polymer by Manborui Material Technology（http://www.china-mbr.com/）, Shape memory polymer(SMP) can store shape information in the form of embossing text and logo accurately, and release these information at 65 °C irreversibly; If heat Shape memory polymer by hot water or hot air like lighter, hair dryer, the overt embossing pattern will disappear（if it has）, while another covert pattern will be released, Application of SMP film can be security label
