The starting position of a screen printerĪs shown in the figure, the screen is positioned just above the board, and the medium (ink) lies in front of a flexible squeegee. The emulsion is usually applied on both sides of the mesh, and a defined thickness is built upon the underside (the side that contacts the board). A stencil of the required image is created by applying a photosensitive emulsion to the mesh. The screen printing process involves a screen formed by stretching a mesh of fine polyester or stainless steel wires over a rigid frame to serve as an image carrier.
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