The only process that appears to be similar to what you want is
called "silk-screening". If this is what you are looking for, part of
the solution is Macintosh-based, and part of it is based on traditional
silk-screening techniques. Here is how silk-screening works:
Silk-screening is a photographic process. A light-sensitive emulsion is
layered onto silk. This emulsion is exposed through an image on a film
positive, much like creating an image on photographic print paper. Once
exposed and processed with photographic-type chemicals, the silk lets ink to
pass through unexposed areas and blocks the passage of the ink exposed
areas. Any material placed under this processed silk screen receives the ink
that passes through. This leaves an image on the material under the silk
screen. This is the portion of the process that is based on traditional
silk-screening methods. A graphics supply house should be able to provide all
the tools and materials required for this phase of the operation.
The Macintosh can be used to create the film positive, which replaces the usual
photographic film positive. Any software that prints to the
LaserWriter can be used to create this image, including graphics and CAD
software. Once the image is created, printing an image on transparencies
provides the equivalent of the film positive. You will, however, be limited to
the size of transparencies that fit into the LaserWriter.
To create multiple colors, use one transparency for each color. This requires
some type of color separation capability: either direct color separation in
the application, or an application that provides several layers of images--one
layer for each separate color.