Experimental Study on Cleaning Mildew on the Surface of Heavy Colored Paper and Calligraphy Relics in Collections
This study took the collection of"Characters on paper"in Shaanxi History Museum as the research object to discuss the removal of mildew.On the basis of the analysis of the pigment components of this heavey color painting and calligraphy,the species of mildew on the surface of the painting and calligraphy were separated,purified and identified,and the simulated samples of mineral pigment and non-miner-al pigment mildew were made by using the successfully cultivated strains.Four cleaning solutions,75%alcohol cleaning solution,3%papa-in cleaning solution,3%papain and 0.05%ascorbic acid compound cleaning solution,and 3%papain and 5%betaine compound cleaning solution were used to clean mildew.The results showed that the cleaning solution combined with 3%papain and 5%betaine compound clean-ing solution had a good cleaning effect on the non-mineral pigment mold samples,and had less impact on the color difference,gloss,pH val-ue,and physical properties of mineral and non-mineral pigment heavy-colored paper samples.Therefore,it could be used for cleaning mold stains produced by Aspergillus glaucus.
heavy color paper painting and calligraphy relicsmildewcleaning solution