Component analysis of unearthed concreted silk products and simulated protection of cultural relics using uncovering agent

In order to verify the effect of the uncovering agent specifically developed for the silk unearthed in Bao′en Temple of Nanjing,uncovering effect experiment was carried out by spraying the uncovering agent on the artificially solidified silk product.The bonding force of the artificially solidified silk product before and after spraying the uncovering agent was tested.The results showed when the sample after the spraying was placed for 10 minutes at the temperature of 30 ℃ and relative humidity of 70% when compared with the sample without the spraying.and 10 min after spraying the uncovering agent.However,the breaking strength,elongation at break,chromatic aberration,thermal behavior and amino-acid content of the sample before and after spraying the uncovering agent exhibited little change.This means that the newly developed uncovering agent is suitable for unearthed concreted silk products.