Application of PET sheet machine in plastic packaging

Haitao Machinery's APET, PETG, CPET single-layer and multi-layer co-extrusion sheet production lines are currently one of the domestic sheet production lines with stable technology, mature processes and stable equipment. Compared with similar domestic equipment, the overall efficiency is more than 30% higher. This production line can also be used to produce PS, PP, PE and other sheet products. PETG, commonly known as low-temperature PET, is a new environmentally friendly packaging material with high gloss, high transparency, excellent barrier properties and self-adhesiveness. Can be used for glue bonding and high frequency processing. CPET is a modified PET with high temperature resistance and is usually used in microwave oven baking sheets, etc.

PET three-dimensional grating films are widely used in three-dimensional anti-counterfeiting outer packaging such as cosmetics, medicines, tobacco and alcohol packaging and general commodities, as well as stationery, pendants, advertisements, posters, various cards, elevators and other fields. Polylactic acid (PLA) is a degradable resin that can be used for rigid packaging of fruits, vegetables, eggs, deli and baked goods, as well as for packaging of goods such as sandwiches, biscuits and flowers. Plastic snack boxes are usually produced by injection molding. The specific process is as follows:

Raw material preparation: The raw materials of plastic snack boxes are usually food-grade plastics such as polypropylene (PP) or polystyrene (PS). These raw materials are supplied in the form of pellets or pellets.

Plastic melting: The raw material is heated so that it melts into a liquid state. This is usually done with a plastic extruder, where the plastic pellets are fed into a heated barrel, which is then heated and pushed into the mold by the rotation of a screw.

Injection Molding: Molten plastic is injected into a mold, the shape of which determines the shape of the final product. The mold is composed of two parts, which are called the syringe and the mold plate. The plastic cools and solidifies in the mold, forming the desired shape.

Mold opening: Once the plastic has completely cooled, the mold is separated and the formed product is removed. This process may include automated mechanical systems or may require manual operation.

Trimming and Packaging: Product may require further trimming to remove excess plastic or saw off irregular edges. The snack boxes are then packaged and ready for sale.

The process is relatively efficient and large-scale, allowing plastic snack boxes to be produced in large quantities to meet market demand. Dongguan Haitao Machinery Co., Ltd. is a plastic extrusion complete equipment manufacturer specializing in the research and development, manufacturing, sales and service of sheet machines, TPU cast machines, cast film extruders, etc. Contact number: +86-13827271518 Mr. Zhang.