1. Mold making and processing: according to the requirements or sample specifications, first make the blister mold. Generally, gypsum is used to make the blister packaging mold, but wood carving and metal carving products are also used as the mold. After the gypsum mold is made, let it dry completely or dry naturally first, and then use 1-2mm drill flowers in the shadow according to the specific situation of convex and concave surface of the product A lot of small holes are drilled in the low concave part of the product packaging pattern. If it is a package box or other products, some small holes must be drilled around the four sides so that the air can be extracted during the blister production. After the mold is drilled, the gypsum mold must be hardened. The hardening treatment method is to soak it in the concentrated alum saturated solution and then dry it. Dongguan Chang'an plastic factory

2. After the mould is completely dried, the mould shall be installed on the upper iron plate of the vacuum chamber, and then the plastic sheet shall be loaded into the applicable specification size according to the mould size, and then the sheet shall be put into the heating wood cabinet to make it completely fixed, and then the wood cabinet and the plastic sheet shall be placed on the constant temperature furnace for softening treatment.

3. Place the softened plastic sheet and the wooden cabinet in the vacuum chamber, turn on the suction switch, and suck out the air in the vacuum chamber. After the plastic sheet is cooled, the same concave packaging or process mould as the mould can be obtained. Dongguan Chang'an plastic factory

4. Blister packaging and finishing, trimming and finishing the produced products are finished products, which can be sold after packaging.