The screens i use for printmaking are essentially a stencil made with a photo sensitive emulsion in the darkroom conditions.
Artwork is printed on a transparent film which is then transferred onto the screen using ultra violet light. The excess emulsion is then washed off. This creates a high - resolution printable stencil which you can see an example of below.
More dark room shots below showing the exposure process.
Film from the Flow 23 Duo Tone edition.
↑ Above - Film from the Orbs CMYK edition.
↓ Below - Films from the spot colour Altered States edition.