Production process of blister egg tray 1: First make eg […]
Production process of blister egg tray
1: First make egg molds for processing: According to requirements or sample specifications, first make egg molds. Under normal conditions, gypsum is used to make plastic packaging molds, but wood carving and metal carving products can also be used as molds. After the gypsum mold is made, let it dry completely or dry first, and then according to the specific conditions of the product surface, use 1-2 mm drills to drill many small holes in the low recesses that do not affect the product packaging shape. For products such as boxes, some small holes must be drilled on the four perimeters so that the air can be extracted during the production of plastic. After the mold is drilled, the gypsum mold must be hardened. The hardening method is to use concentrated alum. The saturated solution was soaked and air-dried.
2: After the egg tray mold is completely dried, put the egg tray mold into the upper iron plate of the vacuum chamber, and then load the plastic sheet into the appropriate size according to the size of the egg tray mold, and then place this sheet in the heating wooden cabinet. Inside, make it completely fixed, and then place the wooden cabinet together with the plastic sheet on a constant temperature furnace for softening treatment.
3: Put the softened plastic piece together with the wooden cabinet in the vacuum chamber, activate the suction switch, and suck the air in the vacuum chamber clean. After the plastic piece is cooled, you will get the same concave egg tray as the mold.
4: Blister egg tray finishing: The finished egg tray is trimmed and finished, then the finished egg tray is packaged and shipped in a carton.
Packaging characteristics and application scope of blister eggs; soil egg tray, duck egg tray, salted egg tray, preserved egg tray, quail egg tray, black egg tray.
