SYSTEM ZUR VERABREICHUNG VON SOWOHL AUF WASSER BASIERENDEN ALS AUCH AUF ORGANISCHEN LÖSEMITTELN BASIERENDEN BESCHICHTUNGEN.

摘要

PCT No. PCT/US89/02444 Sec. 371 Date Oct. 9, 1990 Sec. 102(e) Date Oct. 9, 1990 PCT Filed Jun. 5, 1989.An electrode (60) for electrically charging dispensed coating material is electrically substantially isolated from the coating material dispensing device (16). Sources provide first (30-36) and second (70-76) coating materials, the first (30-36) of which is electrically substantially more conductive and the second (70-76) of which is electrically substantially less conductive. The first (30-36) or the second (70-76) coating material is alternately supplied to the coating material dispensing device (16). A high-magnitude electrostatic potential supply (58) provides electrostatic high potential to the electrode (60) and selectively to the coating material dispensing device (16). The high-magnitude electrostatic potential supply (58) is coupled (62) to the coating material dispensing device (16) when the second coating material (70-76) is supplied to the coating material dispensing device (16) and is uncoupled (62) from the coating material dispensing device (16) when the first coating material (30-36) is supplied to the coating material dispensing device (16).