Well made indigo dyed cloth. [Photo/Xinhua]

Nantong indigo-dyed cloth From the time of the Ming (1368-1644) and Qing (1644-1911) dynasties, Nantong in Jiangsu province has been the major supplier of indigo dyed cloth. In May 2006, the blue dye technique was approved as a national intangible cultural heritage by the State Council. In Nantong, the entire process is finished by hand.