Nowadays, also called self-adhesive label material, is a composite material made of paper, film or special material, coated with adhesive on the back, and coated with silicon protective paper as the base paper. Due to various coating techniques, it is easy to apply. The materials are formed in different grades. The current development direction is from the traditional roll coating and blade coating to the high pressure casting coating direction to ensure the uniformity of coating, avoid the generation of bubbles and needles, and ensure the coating. The quality of the cloth, while the spread cloth coating is not mature in domestic technology, the domestic main use is the traditional roll coating.