Paper plays an important role in the lives of the people. For example, writing paper, burning paper, toilet paper, and napkins are used in different situations and fields. The use of these papers is lacking. , But also affect the ordinary life of residents, so the status of the paper industry plays a decisive role, the use of paper machines is also indispensable.

　　Since the paper machine is indispensable for the use of paper, the papermaking process also needs to be mastered. What is the common papermaking process?

　　Papermaking process from the classification point of view, generally can be divided into two parts of pulp and papermaking, pulping, including pulping, refining and beating, adding, sizing, color, purification, screening and a series of processing procedures, and copy Paper is made into paper on a paper machine. Both processes are indispensable, and each step directly affects the quality of papermaking.

　　Moreover, the pulp directly from the workshop cannot be used for direct papermaking. It is necessary to pass the pulping directly to the necessary processing before it can be used for papermaking, and the necessary fillers for paper quality must be added to the papermaking to increase the paper usage and Availability.

　　Before the paper pulp is sent to the paper machine for papermaking, it must also be subjected to sand removal screening, degassing and other pre-treatments to remove metal or non-metallic impurities, fiber bundles and air mixed in the pulp, reduce paper dust, and improve paper quality. The pulp after desanding, screening and degassing is sent to the head box and evenly distributed on the paper machine net to dehydrate to form a wet paper sheet. Then the press section is used to perform mechanical press dehydration, and heat energy is then used to evaporate the wet paper in the drying section. The moisture, the final calendered, coiled, cut paper, paper or rewinding, packing and other finishing processes into a flat or roll of finished paper or cardboard.

　　In addition, in the papermaking step, a large amount of white water will flow out, which contains a lot of fiber material, which can be recycled, not directly discharged, and directly discharged will also pollute the environment, so it must be treated before discharge.

　　At present, new paper machines use fully-enclosed steam hoods, dry nets, and bag-type ventilation devices, and high-end paper machines adopt new methods such as air-cushion drying to improve the quality of papermaking and are more suitable for targeted papermaking work.

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