METHOD AND APPARATUS FOR THE APPLICATION OF POWDER MATERIAL TO SUBSTRATES

摘要

There is provided and apparatus and method for electrostatically applying a powder material to substrates. The apparatus includes a plurality of platens , each platen being arranged to hold a plurality of substrates, a conveyor for conveying the platens along a path and an applicator for applying the powder material to the substrates. The method includes the steps of placing the substrates on platens, each platen holding a plurality of substrates, conveying the platens in series along a path and electrostatically applying a powder material to the substrates held on the platens. There is also provide d a platen for holding a plurality of substrates to which powder material is t o be electrostatically applied, the platen comprising a platen base having a plurality of supports for supporting a plurality of substrates and an electrically conducting platen shield located on the platen base and having a plurality of holes arranged to align with the plurality of supports on the platen base.