Do you know the history of papermaking machines?
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2025.03.20
As we all know, the invention of paper is one of China's four great inventions and has a long history in China. Even today, in some remote areas, traditional papermaking methods are still practiced and enjoyed by enthusiasts.
In 105 AD, Cai Lun summarized the use of hemp fiber papermaking since the Western Han Dynasty. He used materials such as tree bark, hemp head, rags, and old fishing nets, improving the papermaking process, marking the beginning of papermaking machines.
Around the 18th century, papermaking technology further developed in Europe, with improvements made successively by the Netherlands, France, and the United Kingdom, eventually forming the concept of papermaking machines familiar to us today—long-wire paper machines and round-wire paper machines.
After nearly two hundred years of development, by the beginning of the 20th century, the paper machine had become a large-scale, high-output industrial machine.
Since the 1950s, papermaking machinery has seen further development and innovation. For example, in pulping equipment, there have been vertical continuous digesters, displacement washers, hot rollers, new pressure screens, and de-stoners. In paper machines, new pulp chests, wire sections, composite machines, and polyester forming wires have appeared. The types of technology are numerous.
After the 1960s, controllable DC motor speed control systems began to be widely used in paper machines. Electronic technology was used to detect, control, and record papermaking process parameters, such as the speed, concentration, temperature, and flow rate of materials, drying, quantity, board thickness, etc. By the 1980s, large vertical continuous digesters could produce over one thousand tons of pulp per day. Paper width could reach 10 meters, speed exceeding 1000 meters/minute, with daily output exceeding 500 tons.
To date, paper machine technology has been further enhanced with technological advancements, with daily output nearing two thousand tons, representing a doubling of the year-on-year data.
However, with energy conservation, environmental protection, and the development of new technologies, the future development direction of paper machines will be towards large-scale, highly intelligent, and high-utilization development, with a pursuit of quality and efficiency that will further enhance the development of paper machinery.
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