Electrostatic spraying device

摘要

PCT No. PCT/GB95/02108 Sec. 371 Date May 5, 1997 Sec. 102(e) Date May 5, 1997 PCT Filed Sep. 6, 1995 PCT Pub. No. WO96/07484 PCT Pub. Date Mar. 14, 1996An electrostatic spraying device for spraying liquids comprises a hollow capillary structure having a convoluted inner surface, one end of which contacts a reservoir of an electrostatically sprayable liquid preferably having a viscosity from 1 to 20x10-6 m2/s and a volume resistivity from 2.5x106 to 5x108 ohm cm, the other end of which terminates in an atomization tip, and means for applying high voltage to the liquid in order to cause the liquid at the atomization tip to break up into a plurality of electrostatically charged droplets. Cartridges for use in the electrostatic spraying device are also described.