Blow molding is a plastic processing technique whose basic principle involves heating a flat, rigid plastic sheet until it becomes pliable, then using vacuum suction to conform it to the surface of a mold; after cooling, the part takes its final shape. Blister packaging processing Widely used in industries such as plastic packaging, lighting fixtures, advertising, and decoration.

　　The primary advantages of blister packaging are its ability to conserve raw and auxiliary materials, its lightweight nature, convenient transportation, and excellent sealing performance, all of which align with the requirements of environmentally friendly, green packaging. It can accommodate products of any irregular shape, eliminating the need for additional cushioning materials during packing. Moreover, it allows the packaged product to be clearly visible, enhancing its aesthetic appeal and facilitating sales, while also being well-suited for mechanized and automated packaging, supporting modern management practices, reducing labor costs, and improving efficiency.

　　Blister packaging

　　Blister packaging products mainly include blister packs, trays, and blister boxes; synonyms also include vacuum covers and bubble wraps. Blister processing.

　　Blister pack

　　The blister‑forming process is used to mold transparent plastic sheets into specific raised shapes, which are then applied over the product’s surface to provide protection and enhance its appearance. It is also known as a blister pack, vacuum cover, or plastic face shield. Depending on the configuration of the blister cavity, it can be further classified into single‑cavity blisters, double‑cavity blisters, insert‑card blisters, and suction‑card blisters.

　　Blister box

　　It is a type of thermoformed product with a lid and a base. When the base and lid are joined, it is called a hinged thermoformed box; when they are separate, it is called a top-and-bottom thermoformed box. Thermoforming processing.

　　Blister tray

　　Also known as a plastic inner tray, it is produced by thermoforming a rigid plastic sheet into a custom‑shaped cavity. The product is placed within this cavity, providing protection and enhancing its visual appeal. Thermoforming process.

　　Flocked inner tray

　　It is a thermoformed tray made from a special material, with a layer of velvety fabric adhered to the surface of a standard rigid plastic sheet, giving the tray a soft, plush feel and enhancing the perceived quality of the packaged product.

　　Antistatic pallet

　　It is a blister tray made from a special material whose surface resistivity is less than 10¹¹ ohms. It is primarily used as a blister tray for electronic and IT products. Blister molding process.

　　Blister molding die

　　In thermoforming production, the molds used vary in cost: plaster molds are the least expensive, followed by electroplated copper molds, while aluminum molds are the most costly. The molds are drilled with small holes to facilitate vacuum suction of the heated sheet, thereby forming the final thermoformed product.