Electrostatic spray coating apparatus and method

摘要: A liquid coating is formed on a substrate by electrostatically spraying drops of the onto liquid-wetted conductive transfer surface (14) and transferring portion thus-applied from to (16). Optionally , one or more nip rolls (26) force against surface, thereby decreasing time required for spread coalesce into coating. Preferably, passed through an improvement station comprising two pick-and-place devices (39) that improve uniformity The can be transferred second thence substrate. Insulative substrates such as plastic films coated without requiring pre-charging post-coating neutralization. Porous woven nonwoven webs substantial penetration pores.