Fig. 6From: Gellan residues on paper: quantification and implication for paper conservationHistorical rag paper after the application of several water droplets to the untreated (outside the red line) and treated (within red line) areas. The papers were photographed immediately after the application of all water droplets, starting on the non-treated area. Please note that the images are not colour-corrected. The blue line corresponds to 1 cmBack to article page