Introduction to the Blister Industry; The blister process has an extremely wide range of applications, mainly in the fields of packaging, lampshade production, acrylic light boxes, industrial plastic casings, and plastic parts production. At present, our company's business scope only involves the packaging industry and the blister forming field where the thickness is less than 1.5mm and the area is less than 660×1100mm. Blister packaging products are divided into two categories by function: One category is the transparent series for the purposes of displaying, protecting, and beautifying products. The packaged products are mostly small commodities, which are placed or hung on supermarket shelves. The materials used are mostly PET and PVC with good transparency. The products include: face masks, carded packaging, blister-card packaging, heat-sealed double blisters, folded double blisters, and transparent folding boxes; The other category is the tray and blister box series for the purposes of protecting, separating, shockproofing, and backing up products. The packaged products are mostly electronic products, IT products, industrial parts, and cosmetics. The materials used are mostly PS (colored, anti-static, laminated, etc.). The products include: blister trays, inner trays, blister boxes, flocked blisters, anti-static blisters, conductive blister trays, turnover trays, food blisters, etc. In recent years, the combination of these two types of blister packaging products has led to the emergence of new packaging types: bottom-top sets and sandwich packaging. Among them, the "top" of the bottom-top set is made of PET material with good transparency, and the "bottom" is made of PS material, which not only serves the protective function of a container but also achieves the intuitive effect of display.