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Diazo Photo Emulsion

  • Screen printing is the traditional method of printing images onto fabric and paper. It is possible to duplicate an image many times using a simple stencil placed on the silk screen. An ink colour is poured onto the screen to one side of the stencil and then dragged across the stencil using a squeegee. The ink is pushed through the fine mesh of the

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  • A popular method of making stencils for screen printing is to use the Diazo Photo Emulsion. The screen is prepared with the photo emulsion and a negative printed on acetate is placed on the screen before it is exposed to a bright light source (find out more about Diazo Photo Emulsion). Here is a useful excerpt about emulsion exposure from Ruth Brow

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  • A screen is coated with photo sensitive emulsion and allowed to dry. The stencil is made by placing a "film positive" (i.e. your design printed onto a transparency, or hand drawn onto draftfilm/polydraw using plumtree opaque) on the treated screen, which is then exposed to UV light. Where the light is blocked, which will be your design, the emulsio

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  • Halftone prints can be used to create stencils for screen printing (see our previous post Screen Printing with Diazo Photo Emulsion). Halftone is a reprographic technique which simulates greyscale imagery. It does this by using black dots in different sizes set at varying distances to each other. A halftone image can be printed onto a clear aceta

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  • The Diazo Photo Emulsion method of preparing a stencil for screen printing offers a wide range of possibilities. The technique makes it possible to print fine line drawings, hand and commercial lettering, and photographic half-tone positives. You can choose from the Zoico Coat WRV Diazo Photo or Speedball Diazo Photo Emulsion system. (See Right) A

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