The process flow of corrugated board mainly includes the following steps: raw material preparation, corrugated paper core production, face paper preparation, bonding, cutting, forming and packaging.
Raw material preparation: The main raw materials of corrugated board include waste paper, starch adhesive and dye. After being cleaned, removed from impurities, crushed and other treatments, the waste paper becomes the raw material of corrugated board. Starch adhesive is used to bond the corrugated paper core and face paper, and dye is used to color the corrugated board.
Corrugated paper core production: The processed waste paper is fed into the corrugated paper core production machine, and the corrugated paper core is made through heating, pressurization, forming and other processes. The corrugated shape of the corrugated paper core can be adjusted as needed to meet the requirements of different uses.
Facial paper preparation: The flat cardboard is fed into the facial paper preparation machine, and the facial paper is made through coating, drying, calendering and other processes. The quality and thickness of the facial paper can be adjusted according to demand.
Bonding: The corrugated paper core and the face paper are fed into the bonding machine, and the corrugated paper core and the face paper are bonded together through processes such as coating starch adhesive and hot pressing. The quality and uniformity of bonding have an important impact on the quality of the corrugated board.
Cutting: The bonded corrugated board is cut into corrugated boards of different sizes according to needs through the cutting process of the cutting machine.
Molding: The cut corrugated board is fed into the molding machine, and after heating, pressing and other processes, it is molded into the final corrugated board product. The molding process has an important impact on the flatness and strength of the corrugated board.
Packaging: The molded corrugated board products are packaged after quality inspection. The packaging method can be customized according to customer needs, and is usually packaged in cartons, pallets, etc.
The entire production process needs to undergo strict quality control to ensure the stable quality of corrugated board products. At the same time, attention should be paid to saving energy, reducing waste, and achieving green and environmentally friendly production during the production process.
