再生纸的制作步骤Recycled paper: following the stages

The diagram illustrates a simplified method of producing recycled paper sheets from used paper. It presents a sequence of operations that prepares the collected material, turns it into pulp and then forms and finishes the paper before it is packed. Overall, there are eight stages, beginning with the collection of used paper and ending with the packing of the finished sheets. The sequence moves from preparation and pulp treatment to pressing, drying and finishing. No return loop is shown in the diagram. First, used paper is collected. It is then sorted, with plastic removed at this stage rather than carried forward with the paper. The sorted material is mixed with water in the third step. After this, the resulting pulp is screened, completing the first four stages shown across the top row. The wet pulp next proceeds to the pressing stage. In the following step, the sheet is dried and subsequently cut to size. Finally, the cut sheets are packed, which marks the end of the process shown. These last four operations appear along the lower row, proceeding from right to left in the order indicated by the arrows.