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    • 28. 发明公开
    • Multiple coating of fibers
    • Mehrfachbeschichtung von Fasern
    • EP0114346A1
    • 1984-08-01
    • EP83112846.7
    • 1983-12-20
    • Western Electric Company, Incorporated
    • Taylor, Carl Raymond
    • C03C25/02B29C41/32
    • C03C25/18B29C47/0014B29C47/128B29K2105/20B29L2031/3462
    • This invention relates to an improved method for forming two or more coating layers on a fiber. A first coating liquid is applied by an applicator having a die (e.g. 101) that provides for the formation of a gap (e.g. 103) between the die and the first coated layer. A second die (e.g. 104) is located at the exit of the first die, with the second coating liquid flowing onto the fiber through a relatively narrow clearance (e.g. 106) between the first and second dies. The clearance is formed by die surfaces perpendicular to the fiber axis. This second die also provides for a gap, (e.g. 110) so that the second layer is applied at a "free surface" at the point of contact with the first coated layer. This approach eliminates turbulence and coating nonuniformities associated with prior art multiple coating techniques.
    • 本发明涉及在纤维上形成两层或多层涂层的改进方法。 通过具有模具(例如101)的施加器施加第一涂覆液体,该模具提供在模具和第一涂层之间形成间隙(例如103)。 第二模具(例如104)位于第一模具的出口处,其中第二涂覆液体通过第一和第二模具之间相对较窄的间隙(例如106)流动到纤维上。 间隙由垂直于纤维轴的模具表面形成。 该第二管芯还提供间隙(例如110),使得第二层在与第一涂层的接触点处以“自由表面”施加。 这种方法消除了与现有技术的多重涂覆技术相关的湍流和涂层不均匀性。