Studies on the washing of paper: Part 2: A comparison of different washing techniques used on an artificially discoloured, sized paper

Seven different conservation washing techniques have been used for cleaning artificially discoloured Arches paper. The new paper was much more hydrophobic than the discoloured filter paper used by the authors in previous work. Washing was much slower and some techniques appeared to redistribute and concentrate discolouration on one surface of the paper, making it more discoloured than at the start of the process. The Chinese method produced the most efficient washing probably due to the higher temperatures used.