Centre for Fine Print Research University of the West of England Centre for Fine Print Research
  C. Parraman wallpaper design, Spiral Graph, 2011

Carinna Parraman

title of wallpaper: Spiral Graph
Description: Stereo printed surface pattern, showing the offsetting of the red and turquoise spiral forms. Using red-blue stereo glasses, the black shapes will appear to float above the picture plane.
keywords: Three-dimensional stereo printing, new materials, Guilloché, lenticular patterns, illumination.

With references to Spiro-graph games of the 1960s, I have been exploring the relationship of print, transmissive and emitting illumination. The printed intricate, complex repetitive, interlinking, looping lines are generated in Adobe Illustrator to create Guilloché patterns, which are similar to the fine lines that appear on banknotes. The looping shapes are generated in Illustrator by rotating a shape-line that is offset from its axis. This is repeated about 50 times to create a complete revolution.

The interweaving, spiral lines are assigned red, turquoise-blue and black. Each of the colours and shapes were assigned a separate layer so that each colour could be moved about the picture plane to obtain the desired composition. The red and blue layers are offset so that when looked at through stereo glasses, the black shapes will appear to float above or underneath the red-blue shapes.

Part of my research is the investigation of illuminated wallpaper and panels that reflect, increase, store and emit illumination. In addition to the stereo-printed surface, I incroporated a second layer, so that under low light levels the wallpaper might glow.

In order to make the paper to glow, I embedded a thin neon wire with an electroluminescent core (that emits light as a result of the passage of an electric current) into the reverse of the paper. This 1.2mm thin wire can be bent around the thickness of a pencil and can therefore be arranged into tight circular compositions. In order to embed the wire into the paper, I laser-etched a channel into the reverse of the paper. Using the capabilities of the laser machine meant that the paper was etched rather than cut, leaving a flat surface on the reverse (printed front) and a thin layer of paper through which the wire could emit light.  There is a range of neon colours, but in this instance, I chose to use white neon, resulting in a subtle emission of light.

Second Design:

title of wallpaper: Subsurface scatter

C. Parraman wallpaper design, Subsurface scatter, 2011

Working with hypotrochoid shapes, a series of layers are generated in Illustrator to create Fresnel lenses. Each shape is reduced in size, layer by layer, at either a fixed central point or an offset point. The first layer (which appears on the bottom) is printed as a coloured blend, the following ten layers are printed in gloss and printed at 2 passes per layer to a create high surface relief. The colours and gloss are printed onto a clear polypropylene. The translucency of the colour and gloss means that the light is diffused through the lenses to create soft patterns and scattering of colour onto any other surface underneath.

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