The production process of large blister is from the mold making and processing, first according to user requirements or sample specifications to make good blister mold. Under general conditions, here are the use of gypsum to make blister packaging molds, but also wood carving and metal carving products as molds.

After making the gypsum mold used in the large suction molding process, let it dry completely or dry first, and then, according to the specific conditions of the product surface, use 1-2 mm drill flower to drill many holes in the low concavity that does not affect the packaging appearance of the product.

If the products such as packaging boxes need to drill some holes on the sides so that the air can be drawn out during the plastic suction production. After the mold has drilled the holes, the gypsum mold has to be hard treated.

When the large blister mold is completely dry, the mold is put on the upper plate of the vacuum chamber. Then according to the mold size, the plastic sheet is loaded into applicable specifications and dimensions; Put the sheet into a heated wood cabinet to make it completely fixed, and then place the wood cabinet and plastic sheet on the thermostatic furnace for softening treatment.

In the production of thick film blister, it is necessary to put the softened plastic sheet together with the wooden cabinet in the vacuum chamber. After the plastic sheet is cooled, the same concave packaging or process mold can be obtained.

With the rapid development of the transportation network, the demand for passenger cars is increasing, and the requirements for safety and comfort of passenger cars are also improving. The appearance of interior decoration, luxury has become one of the important signs of high-end luxury passenger cars.

Blister packaging manufacturers according to the process can be divided into two plastic sheet and soft skin. The material used for thick sheet is mainly acrylonitrile-butadiene-styrene (ABS) plates, and some parts are made of plexiglass (PMMA) plates. ABS plate is used in the inner board, top inner board, rear inner board, cover board of some electrical box and other cover board of the cab of passenger car. Now there is also a trend to use the composite ABS sheet instead of the general ABS sheet, the composite ABS sheet is to add a layer of foam polypropylene or polyvinyl chloride on the sheet, and roll them together to form the sheet with skin or feel like leather. The acoustical cover board of the instrument platform that asks transparent, the air that asks to prevent ageing car body outside is grid, what use commonly is organic glass is formed. Soft epidermal thick sheet suction process is mainly used on the bus instrument platform. Generally, the substrate is FRP, and the pores are opened to absorb the epidermis. The epidermal materials are mainly PVC/PPF composites.