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    • 3. 发明授权
    • Method and apparatus for securing uniformity and solidity in liquid jet
electrostatic applicators using random droplet formation processes
    • 使用随机液滴形成方法确保液体喷射静电涂布器的均匀性和固化性的方法和装置
    • US4650694A
    • 1987-03-17
    • US729412
    • 1985-05-01
    • John L. DresslerBobby L. McConnellMichael I. GlennJoseph P. Holder
    • John L. DresslerBobby L. McConnellMichael I. GlennJoseph P. Holder
    • B05D1/04B05B5/025B05B5/08B05B5/14B05B5/16D06B11/00
    • D06B11/0059
    • Uniform application of a controlled relatively small liquid volume per unit area to a moving fabric substrate is obtained even though application is made using a liquid jet electrostatic applicator which employs random drop formation processes. Repetitive print times during which randomly formed droplets are passed onto the substrate along a linear orifice array are controlled so as to have a minimum duration sufficiently large as to average out expected random variation in droplet formation processes occurring along the orifice array. At the same time, the center-to-center spacing of each printed pixel (during which randomly formed droplets are intercepted so as not to fall onto the substrate) is controlled so as to maintain a desired relatively small controlled liquid volume per unit area within the fabric substrate section to be printed. In one exemplary embodiment, the print times are maintained in excess of approximately 200 microseconds and/or so as to insure that the expected standard deviation of liquid volume printed onto the substrate during each print time is less than approximately 0.2.
    • 即使使用采用随机液滴形成方法的液体喷射静电涂布器进行应用,也可以获得将每单位面积受控的相对小的液体体积均匀地应用到移动的织物基底。 控制随机形成的液滴沿着线性孔阵列传递到基底上的重复打印时间,以具有足够大的最小持续时间,以平均沿着孔阵列发生的液滴形成过程中的预期随机变化。 同时,控制每个印刷像素的中心到中心的间隔(在其间随机形成的液滴被截取以便不落在基底上),以便在每个单位面积内保持所需的相对小的受控液体体积 要印刷的织物基材部分。 在一个示例性实施例中,打印时间保持超过约200微秒和/或等等,以确保在每个打印时间期间印刷到基板上的液体体积的预期标准偏差小于约0.2。
    • 8. 发明授权
    • Fluid jet applicator for uniform applications by electrostatic droplet
and pressure regulation control
    • 流体喷射器,用于通过静电液滴和压力调节控制均匀应用
    • US4797686A
    • 1989-01-10
    • US21358
    • 1987-03-03
    • Joseph P. Holder
    • Joseph P. Holder
    • D06B11/00G01D15/18B05B5/00B05C11/00
    • D06B11/0059
    • A hybrid fluid jet apparatus is disclosed which is particularly useful in uniformly applying liquid dye to a fabric substrate. The applicator is controlled in an electrostatic control mode while operating below the practical limit of speed for electrostatic operation to achieve uniform fabric coverage. When fluid is being supplied to the substrate at its maximum flow rate in the electrostatic control mode, the applicator senses that the "full flow" condition has been reached. The applicator is then controlled to operate in a non-electrostatic control mode to control the fluid flow rate by modulating the fluid pressure received at the orifice array in accordance with the required fluid flow rate needed to achieve a uniform application of fluid to the substrate.
    • 公开了一种混合流体喷射装置,其特别可用于将液体染料均匀地施加到织物基底上。 施加器被控制在静电控制模式中,同时操作低于用于静电操作的实际速度极限,以实现均匀的织物覆盖。 当在静电控制模式中以最大流量向衬底供给流体时,涂抹器感测到已达到“满流”状态。 然后控制施加器以在非静电控制模式下操作,以根据实现流体均匀地施加到衬底所需的所需流体流速来调节在孔阵列处接收的流体压力来控制流体流速。