Abstract: A screen printing apparatus includes a screen exposed to a light source. A conveyer is arranged for receiving the exposed screen. Another conveyer is disposed below the previous conveyer and extended distal to the light source for receiving and for moving the screen. A turning device is disposed between the conveyers for turning the screen up-side-down. A washing device may provide water for washing the screen. A drying device is disposed beside the washing device for drying the washed screen. The screen printing plate can be made automatically.

Abstract: A printing screen plate making process and the device therefor, the device comprising a box having a transparent film, a screen holder and a rubber pad contained therein. By drawing the desired pattern on said transparent film and covering a screen on said screen holder with a layer of photoresist, and then, exposing said box to the sun, a sprinting screen plate is obtained after washing out the photoresist which was not exposed to the sun.