23 Oct How is Paper Produced?
Paper is used in many applications, from napkins to construction materials, including writing, printing, wrapping and wrapping. In contemporary times, paper has become a basic tool found all over the world. Achieving the production of paper in large quantities paper machines Thanks to this, literacy has increased and education levels have increased all over the world.
paper productionThe basic process of s has not changed for 2000 years. The paper production process is based on the bonding of green cellulose fibers with each other during drying under tension. It consists of two main stages:
1) Dispersing and separating the raw material (containing cellulose fibers) in water in order to create dough mortar (the state of fibers in water). After whitening and grinding the pulp mortar, it is diluted by adding water, and if necessary, fillers such as calcium carbonate and kaolin are added. This mixture, consisting of of water and %1 of fiber and other additives, is delivered to the paper machine by a pump.
2) Dewatering, pressing and drying this pulp by spreading it on a porous sieve to form the paper layer. paper machineThe dough mixture is poured through a very narrow slit onto a very fine mesh strainer called a sieve. The sieve constantly presses and the solids in the water-fiber mixture remain on the sieve and the water is filtered with the sieve support. Thus, a wet paper layer consisting of approximately fiber and water is formed on the sieve.
This wet paper was then used again paper machineMore water is removed in the presses that are a part of the . This paper comes out of the presses with a dry content between % 42-48. The maximum amount of water that can be removed from wet paper by pressing is the limit. Therefore, the paper passes to the drying section and is dried by contacting the drying cylinders containing high-temperature mist.