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| Screen printing with Riso stencils | |
|---|---|
| Difficulty | Intermediate |
| Duration | 20 min. |
| Tools | Scissors Masking tape Medium mesh (~200 LPI) silkscreen (stretched on frame) Ink retardant Other screenprinting materials |
The stencils created by the Risograph can be used with a screenprinting setup to manually press ink through the stencil. This is an alternative way of making an image for silkscreening—rather than using an emulsion-based process or another form of stencil. It also allows non-Riso inks (such as opaque whites, metallics, and other additives) to be printed, as well as printing on fabrics or other strange stocks.[1]
This technique is dependent on three manipulations of the Risograph and the material properties of the stencil it creates:
The stencils created on the Risograph are usually inked immediately after the image on them is burned. The first print (the "proof print") is used to press them into the surface of the drum, which saturates them with ink.[2] For this process though, we need to generate clean/dry stencils—so the Riso has to be manipulated into making but not inking a stencil. Since the inking happens automatically, you will need to either "block" ink from inside the drum from reaching the stencil, or try to prevent the stencil from ever reaching the drum once it is burned.
In order for the machine to properly place stencils on drums (and detect when something has gone wrong) it has to be able to "see" if there is a stencil on the drum or not.
