Method and apparatus for securing uniformity and solidity in liquid jet electrostatis applicators using random droplet formation processes

Abstract From the Canadian patent

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 …