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Flexible blade coater

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  • 21/08/2018

Flexible blade coater In 1951, a British inventor, Ronald Trist, applied for a US patent for a drag coating device that applied a mixed emulsion of water and kerosene to pigment onto paper. The patent was granted in 1955, and then Rice-Barton began researching whether it would be suitable for traditional coating ratios. It was first tested by Frasr for bread wrap, then by Oxford Paper for high-grade cultural paper, and then by Ladrain in 1956 to make an off-coated No. 5 paper. The quality of t…

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Introduction of several coating machines

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  • 20/08/2018

Introduction of several coating machinesConsolidated-Massey coaterAccording to Kaulakis Es9, it took a total of 10 years (1928-1938) to improve the Massey in-machine coater to the prototype shown in Figure 59. The press concept uses a number of distribution rolls and a scraper system to meter the paint instead of a metering roll or a door roll. The roller diameter is larger than the other rollers.The Massey system requires rollers with different hardnesses set at different nip pressures. The uppe…

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Extrusion and transfer roll coater

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  • 17/08/2018

Extrusion and transfer roll coater There are many specific problems to be solved before applying for a patent, and there are more problems to be solved in order to commercialize the invention. For example, the printing industry has been making inks (lacquering cats and carbon blacks) for hundreds of years. The film is printed on paper. The idea of coated paper porcelain clay and gum cats also seems to be a matter of course. But the record shows that many people try…

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Coating equipment four systems

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  • 16/08/2018

Coating equipment four systems First, the gas supply systemThe gas supply system generally includes a centrifugal fan and motor, a cooler and a pop-up filter for photographic paper coating. The amount of air depends on the width of the coater, the opening of the slit, and the operating pressure. Table 34 shows the three types of lip opening to a pressure of 68. 9 kPa or less, the typical air volume per cm width. Typically, the operating pressure is 20. 7-34. 5kPa to reduce fog and noise.Second, t…

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Air knife coating machine

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  • 15/08/2018

Air knife coating machineThe air knife coating machine (also known as air squeegee or air brush) is the first of the three types of coating machines that revolutionized paper coating. The Terry patent was first awarded in 1938. This new coating machine will soon be available. Get adopted. The new concept of air knife increases the operating speed from 120m/min to 300m/min. Compared to the brush coater, not only is the speed increased, but the downtime (especially the rinsing time) is greatly shor…

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Historical coating machine and special coating machine

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  • 14/08/2018

Historical coating machine and special coating machine The change from manual coloring to the use of a mobile brush coater began in the 20th century, and with the participation of many people, once a basic concept was formed, it quickly improved.The historical process of development work is summarized below and will be discussed in chronological order:- Historical Xubu machine and special coating machine;- air knife coating machine;- squeeze roll and transfer roll coater;- a flexible blade coater…

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