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Block Out, Tusche, and Drawing Fluid/ Screen Filler Methods of Screen Printing |
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All three of the following methods can be used progressively for an infinite number of colors in one print using one screen. Start with large light areas, and work darker.
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Block-Out Method Think of this method as being the same as the hand-cut film method, except that you use a brush to paint liquid block-out directly on your screen in the areas that you don't want to print, leaving open the areas where you want ink to pass through. In other words, the block-out replaces the film. Use lacquer-based block-out for water-based inks; use water-based block-out for solvent-based inks. Be sure to properly prepare your screen by degreasing and abrading. Choose a screen mesh in a medium range - 12XX or 140 count. |
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Tusche Method Tusche is a black, waxy substance in liquid or solid crayon or pencil form that you use to paint or draw directly onto your prepared screen in appositive fashion. The areas you paint will be the areas that print. After the tusche is applied, coat the entire screen with a 50/50 mixture of LePage's hide glue and water or 50/50 gum arabic and water. Let that dry, rub out the tusche with turpentine, and you're ready to print. This method requires solvent-based inks. |
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Drawing Fluid/Screen Filler Method This Speedball product works like the tusche method, in that the drawing fluid is the "tusche" and the screen filler is the "glue." The benefit to this method is that the drawing fluid is washed out with cold water and the screen filler removed with hot water - turpentine is not needed. Any water-based ink can be used. This is an especially attactive method for the elementary classroom on up. |
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