Introduction to the Production Process of Pulp Trays

What is the production process of pulp pallets? The following is an introduction about it.

1. The production process of pulp tray

It is very likely that a variety of quantitative analysis components will be added to the slurry tank based on the secret recipe, and the desizing and the addition of agents will be carried out. For example, sizing agents (such as turpentine, emulsifying wax) are used in impermeability grades of pulp moulded products. For non-sticky pulp, be sure to add rosin glue equivalent to 3% of dry chemical fiber; for sticky pulp, be sure to add 1.5%-2%.

Adding light calcium powder as a filler helps to improve the preservation rate. Some paper pulp tray manufacturers will continue to add small amounts of oil/water repellent coatings, wet strength agents or retention aids. If you need to make colorful egg boxes or cartons, add additives to the refiner.

2. The whole process of forming the pulp tray

Chemical fiber products need to be stacked symmetrically. In other words, no matter how complicated the appearance of the product, it must be symmetrical according to the regulations.

Forming is a key factor in the production of pulp pallets, and it plays a key role in the quality, bulk density, energy consumption and productivity of the product.

As a common method in the field of pulp molding, the blister molding machine is completed according to the vacuum filtration technology. Put the mold into about 1% concentrated pulp aqueous solution, and rely on the vacuum pump to ensure that the negative pressure is created in the cavity. The chemical fibers often contained in the pulp are evenly accumulated on the surface of the mesh of the mold, and a lot of water is discharged while the vacuum pump sucks fat.

When the product reaches the required thickness, it is migrated from the pulp molding die and extruded and dried until the moisture content of the wet product drops to 75% to 80%. Then the wet product will fall under the effect of air compression in the mold cavity.

In order to better improve the molding quality, not only have excellent original ecological pulp and effective molding methods, but also need an excellent pulp tray design plan to ensure the supply of pulp. The design plan and production processing of the mold should have excellent filtering characteristics and well-balanced drying characteristics.

Our company mainly focuses on high-density pulp molding packaging, machinery and molds. The disposable tray factory is well-equipped and advanced, with 8 plant fiber pulping systems. Therefore, our eco-friendly disposable tableware factory in Dongguan can flexibly choose the most suitable production system according to customer needs. Planting has also realized production automation and intelligence. With the advancement of Industry 4.0, Zhiben, as an environmentally friendly packaging company, fully implements ISO9001, ISO140001, and SA8000 international management systems in China. If you have any needs, please feel free to consult.