Example of test results - 実験結果例

Example of test results - 実験結果例

Top: 10% Paraloid B48N in toluene gave the uneven appearance typical of the six synthetic resins that were tested.


Bottom: 15% ita nikawa gave the even penetration and moderate colour saturation typical of several of the types of nikawa that were assessed. Although none of the materials tested was perfect, the best results were achieved with a type of nikawa known as tsubu nikawa.


Tests undertaken in 2005 had shown that the surface of the Mazarin Chest was water sensitive and subject to blanching if exposed to aqueous adhesives such as nikawa. Accordingly, the areas adjacent to the mother-of-pearl decoration were treated in advance with dilute lacquer (urushi-gatame treatment) to prevent damage occurring while re-adhering the shell.