Blank self-adhesive labels can be classified into two categories: paper and film according to the type of material: paper types include offset paper, coated paper, glass cardboard, laser paper, kraft paper, fluorescent paper, gold-plated paper, aluminum foil paper, and fragile ( Anti-counterfeiting) paper, silver-plated paper, textured paper, cloth label (Tyvek/nylon) paper, pearl paper, sandwich coated paper, variable information paper. Films include transparent polyvinyl chloride (PVC), polyester (PET), polypropylene (PP), polycarbonate (PC), synthetic paper, PS, PE, shape-memory anti-counterfeiting material (SMP), etc.