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    • 41. 发明专利
    • CONTROLLING WETTING WATER IN PRINTING
    • JPS5591671A
    • 1980-07-11
    • JP15816979
    • 1979-12-07
    • NITSUKEI SHOJI KK
    • KAGAYA MINORU
    • B41F7/32
    • PURPOSE:To get a continuous clean and stable printing without using any chemicals for a long period of time by a method wherein mere water is used as wetting water having a constant pH value and temperature condition and to provide a stable supply of wetting water to the printing press. CONSTITUTION:Wetting water circulated from the printing press is passed through the circulation pipe 28 and fed into the filter 4 of the filter chamber 14, drawings and other inpurities are removed from the water, and then the water is fed into the adjusting tank 18. Water such as the tap water is supplied into the adjusting tank 18 in reference to a water level meter to keep the water level constant. Temperature of the wetting water is also kept constant by operating a cooling mechanism 7 or a heater in reference to an operation of a temperature measuring mechanism. The wetting water kept in the adjusting tank 18 having a constant water level is fed to the printing press by a pump.