Topcoat: It is made of BOPP crystal film and oily glue. It is often used to protect and affix the trademark of printing adhesive. Play a long-term use of the trademark and increase its luster and beauty.

Glazing film is often used in the production of various sticker labels. Generally, sticker labels are made of copperplate paper, copperplate paper, writing paper and other materials, which are easy to tear. More often, we need to prevent the breakage of sticker labels, requiring that sticker materials have certain waterproof and other properties. Synthetic paper sticker materials have higher cost than paper sticker materials. In order to save material, it is often used to attach a layer of light film or dumb film to the surface of the non-drying adhesive label.