Introduction to Yunjin Tianyi: Yunjin refers to the general name for various jacquard silk fabrics, mainly brocade, produced in Nanjing. From the time when Kublai Khan established the government-run East-West Weaving and Dyeing Bureau in Nanjing in the 17th year of the Yuan Dynasty (AD 1280), until the 30th year of Guangxu in the Qing Dynasty (AD 1904), when Jiangning Weaving was abolished for more than 600 years, Nanjing has always been It is the center of the national silk weaving industry. The prosperity of the government-run weaving and folk brocade industries has also driven the development of the city.