Fading of Silk Fabric Dyed with Phellodendron

Commercial silk habotai was dyed with phellodendron according to Chinese traditional dyeing method. After dyeing, the samples were quickly aged under ultraviolet lights in order to simulate the light fastness ageing of silk cultural relics during exhibition in museum. The results showed that discontinuous aging and continuous ageing resulted in different effects on the samples. High Performance Liquid Chromatography (HPLC) was used to analyze the changes happened under different aging treatments and to explain the reason of the poor light fastness of the silk fabrics dyed with phellodendron.