The production process for egg trays includes a pulp-making system, a pulp-molding system, a drying system, and finally the packing system. This is an overview of how egg trays are made from waste paper.
The Egg Tray Production Process
As mentioned above, egg-tray-making(maquina para hacer bandejas de huevos) processes include making the pulp, molding the pulp, drying the egg trays, and a packaging system. Here is what that looks like in a step-by-step process:
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Step One: Pulp Making
The first step of the process involves converting the waste paper into a pulp. Water and waste paper are pulverized together until the materials are changed into a pulp.
Step Two: Pulp Molding
The pulp molding system is a step in the process where the pulp is formed into trays to form expected shapes such as apple trays, shoe boxes, egg cartons, egg trays, etc.
Step Three: Drying
After demolding the trays(bestoneco), they contain around 30% water. This is when the trays need to undergo a drying process so that they can solidify. There are two methods used to dry egg trays. The first includes a natural drying process (putting the trays in a sunny area) or a bricking room is used to dry the trays.
Step Four: Packaging
After the egg trays are dry, they are ready for packaging so that they can be used or sold.
What Equipment Is Used In The Egg Tray Production Process?
• Pulp Making System
The primary equipment in the egg tray production process is a hydraulic pulper, a water pump, and a pulp refiner. The pulp-making system also includes pulp pools and the addition of water. In most cases, only one person is required to place the water and waste paper inside the hydraulic pulper. The typical ratio of the ingredients is 1:3. From here, the pulp is pumped into a refiner to reach a more even consistency.
At this stage, coloring agents can be added when required. This equipment runs off electricity. For those with limited space, there is the option to invest in an integrated-pulping system where the water pools, the pulp refiner, and the hydraulic pulper are put together.
• Pulp Molding System
The pulp-molding machine(https://www.bestoneco.com/maquina-para-fabricar-cubetas-de-huevos/) includes an air compressor, a vacuum pump, and a negative-pressure tank. Once the pulp reaches the desired consistency in the pulp refiner, it passes through a pump into the pulp-molding system. This part of the process is when the pulp is shaped by forming molds with the use of a vacuum pump. As the forming molds start to rotate to transfer the molds, the wet egg trays are moved with the use of an air compressor.
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Today, there are several reliable manufacturers that provide egg-tray production lines. There are also several configurations to choose from. The egg tray making machines(maquina moldeadora de pasta de papel) can also be used to produce many other products, since all that is needed is to change the molds.