1: mold making and processing: according to the requirements or sample specifications, first make a good plastic mold, under general conditions, are using plaster to make plastic packaging mold, but also useful for wood carving and metal engraving products for mold, plaster mold made well After that, allow it to dry completely or dry, and then use the 1-2 mm drill to drill many small holes in the low-concave position that will not affect the appearance of the product according to the specific conditions of the surface of the product. If it is a product like a box , Drilled holes in the periphery to allow the air to be pumped out during the production of the plastic mold. After the mold has drilled the holes, the plaster molds have to be hardened. The hardened method is to use the thick alum saturated liquid to soak. After drying.

2: After the mold is completely dried, the mold is placed on the upper iron plate of the vacuum chamber. Then, according to the size of the mold, the plastic sheet is loaded into a suitable size, and then the sheet is placed in a heating wood cabinet to completely fix it. Then, the wood cabinet is softened with the plastic sheet set on a constant temperature furnace.

3: The softened and processed plastic piece is placed in a vacuum chamber together with a wooden cabinet. The suction switch is actuated, and the vacuum indoor air is suctioned and cleaned. After the plastic piece is cooled, the same concave package or process mold is obtained.

4: Blister packaging and finishing; the products will be trimmed and finished as finished products, which can be sold after packaging.