Study on the techniques of wallpaper (“Biaohu”) in the Palace Museum:Case on Lodge of Bamboo Fragrance (Zhuxiang guan)

“ Biao Hu ” was one of the eight famous traditional crafts in the late Qing dynasty. It included decorating the interior of ancient buildings and making burial objects, including ceilings, walls and windows. It was popular in the structures of northern China in the early Qing dynasty. There was white and patterned wallpaper in the Forbidden City. The latter included traditional and rare patterns. Taking the wallpaper in Lodge of Bamboo Fragrance (Zhuxiang Guan) as an example, in this article, its structure and composition have been studied by morphological observation and spectroscopic analysis. The pigments and dye were analyzed by Raman spectroscopy and UPLC. Combined with an analysis of the patterned wallpaper in other buildings of the Forbidden City, traditional technology has been investigated.