Paper Making Machine Working Process Explained
Paper Making Machine Working Process Explained...
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LearningTranscript
00:00The real genius who invented papermaking paper is mainly composed of plant fibers.
00:04Wood is rich in fiber and is the preferred raw material for papermaking.
00:09Pay attention.
00:10Do you know how the modern paper industry makes paper?
00:13First, the logs are washed with steam or hot water to remove dirt, sand, etc.
00:18Then the logs are trimmed to prevent them from getting stuck during the debarking process.
00:23Next, they enter the debarking drum to remove the outer bark.
00:27The debarked wood segments pass through a conveyor with a metal detector to remove metal fragments.
00:32The log segments are sent to a rotating disc with sharp cutting blades,
00:36where the wood is cut into small wood chips.
00:39These small wood chips are sent to a digester
00:42and boiled in an acid solution to dissolve and separate the lignin,
00:46thus obtaining a pulp containing cellulose.
00:48The fibers are then washed to remove the acid solution.
00:52So how is pulp converted into paper?
00:54The pulp is first bleached, then diluted with water.
00:58Calcium carbonate and fillers such as clay are added,
01:02along with fluorescent brighteners to improve the appearance.
01:05The pulp is squeezed through a series of rollers to remove moisture.
01:09After drying and stretching to smooth, it forms a continuous paper strip.
01:14The finished paper strip is rolled into large rolls
01:17and transported to a processing plant where it is processed into various products,
01:22including your favorite banknotes.
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