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    • 8. 发明授权
    • Coating method employing ultrasonic waves
    • 使用超声波的涂布方法
    • US5336534A
    • 1994-08-09
    • US48257
    • 1993-04-16
    • Kenji NakajimaKimiaki Miyamoto
    • Kenji NakajimaKimiaki Miyamoto
    • B05C5/02B05C5/00B05C9/06B05D1/30B05D3/12B05D7/00G03C1/74
    • G03C1/74B05C5/008B05C9/06
    • A coating method by which the speed of coating can be improved remarkably regardless of the number of polar groups on the surface of a web and irrespective of the properties of material for the web. A coating solution flowing out of a liquid injector is applied to a web supported by a coating backup roller. A high frequency signal from a master oscillator is amplified and applied to a vibrator. Ultrasonic waves generated in the vibrator are guided by a horn to be radiated to the contact line between the coating solution and the web. With the invention it is possible to prevent a coating solution from being intermittently applied to a web, and it is also possible to increase the coating limit speed, for example, by 5 to 26%. In addition, lateral stair-stepped unevenness of thickness is not produced in the coating layer.
    • 无论网状物的表面的极性基团的数量如何,均可以显着提高涂布速度的涂布方法。 将从液体喷射器流出的涂布溶液施加到由涂覆支撑辊支撑的幅材上。 来自主振荡器的高频信号被放大并施加到振动器。 在振动器中产生的超声波由喇叭引导以辐射到涂布溶液和幅材之间的接触线上。 通过本发明,可以防止涂布液间歇地施加到卷筒纸上,并且也可以将涂布极限速度提高5%至26%。 此外,在涂层中不产生横向阶梯状的厚度不均匀性。