The article presents an integrated analytical study of crayons from the original art materials collection at the MUNCH museum in Oslo. The research focuses on characterising the constituent materials of crayon samples using micro-destructive techniques like µ-FTIR and Py-GC-MS.
The study aims to classify different brands of crayons based on their organic binding medium, with a particular emphasis on identifying natural waxes like beeswax and carnauba wax. By analysing 100 crayon samples grouped by colours, the study seeks to determine if variations in composition exist among different brands and if the identified organic materials allow for categorization.
The research, conducted under the framework of “THE SCREAM Project,” aims to enhance knowledge about the wax-based drawing materials in Edvard Munch’s collection. The study’s novelty lies in its attempt to classify crayon-type materials based on advanced analytical approaches, providing valuable insights into the organic and inorganic components of these drawing materials.
Through detailed analyses and collaboration between the HERCULES Laboratory and the Munch Museum in Oslo, the study contributes to the understanding of Edvard Munch’s legacy and the composition of crayons in his collection, shedding light on the historical context and evolution of wax-based drawing materials in art conservation and research.