J.IIC-CG VOLUME 4 (1978)
The Lightfastness of Felt-Tip Pens
Felt-tip pens have become increasingly popular with contemporary artists in recent years. Unfortunately, the stability of the colours from these pens varies depending on the type and colour of the pen. In order to evaluate the pens available, the lightfastness of 543 felt-tip pens was determined. The effect of filtering the ultraviolet radiation component from the light was evaluated as a possible method of preservation. A colour change acceptability evaluation test was developed to provide the reader with criteria for interpreting the results.
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