What are the outstanding silk reeling works in the Northern Song Dynasty?

The famous silk producing area in the Northern Song Dynasty was Dingzhou, Hebei Province. The techniques and colors of the pattern have maintained the fine tradition since the Sui and Tang Dynasties, and the pattern structure is both symmetrical and changeable. Excellent works include Zi Luan Que Pu, Zi Tianlu and Zi Tang Lotus collected by the Palace Museum, among which Zi Luan Que Pu is the most representative. Peacocks, cranes, golden pheasants, geese and orioles have a deep purple background, and their colors are ochre, yellow, pink blue and dark green.