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Figure 10 | Heritage Science

Figure 10

From: Investigation of the stabilization of verdigris-containing rag paper by wet chemical treatments

Figure 10

Images of copper-migration test with BTA-impregnated Whatman no. 1 paper and Whatman no. 1 control samples without BTA. From the left, untreated Whatman no. 1 paper, Whatman no. 1 paper treated with a co-solvent without BTA, and Whatman no. 1 paper impregnated with BTA. A remarkable reduction of the migration of verdigris horizontally and vertically is observed in the BTA-impregnated paper. The pictures on the right figure were all taken from the verso.

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