Blue printed cloth printing and dyeing techniques are traditional techniques in Hunan and Zhejiang provinces, and are one of the national intangible cultural heritages. Blue printed cloth printing and dyeing techniques are divided into two categories: pure blue printed cloth printing and dyeing and colorful blue printed cloth printing and dyeing: pure blue printed cloth has a plain surface and no patterns, and is generally used to make clothes and headscarves; colorful blue printed cloth has complex patterns and is generally used to make quilt covers, mattress sheets, tent eaves, aprons, waists, door curtains, tablecloths, aprons, etc. Before printing and dyeing, it needs to go through the processes of mounting paper plates, tracing, engraving, oiling, seasoning, scraping, and dyeing. After dyeing, it also needs to go through the process of drying, washing, rolling, and grinding (also called "stepping on cloth"). Blue printed cloth originated from the Qin and Han Dynasties and flourished in the Tang and Song Dynasties when commerce was developed. Blue printed cloth was introduced to Tongxiang probably in the Yuan Dynasty. After the Ming and Qing Dynasties, the printing and dyeing of blue printed cloth was applied to the people. According to the "Shimen County Chronicles" during the Guangxu period of the Qing Dynasty, the government had set up a special weaving and dyeing bureau at that time, in which there were 19 registered dyeing craftsmen. According to the town records of Chongfu, Shimen, Wuzhen, Puyuan and other towns in Tongxiang, folk dyeing workshops that specialized in blue printed cloth were scattered all over these areas in the late Qing Dynasty and early Republic of China. Among them, the Fengtongyu Dyeing Workshop in Shimen and the Lanmaofeng Dyeing Workshop and Xieda Dyeing Workshop in Chongfu were the most influential and had a long history. The themes of Tongxiang blue printed cloth can be divided into four categories according to their meanings: symbolic meanings, such as phoenix wearing peony, pine and crane prolonging life, and longevity; homophonic meanings, such as surplus year after year, five blessings holding longevity, and joy on the eyebrows; metaphorical meanings, such as fish leaping over the dragon gate, pomegranate opening hundreds of seeds, and three more pictures; graphic meanings, such as auspiciousness and good luck, and endless years. Representative works include: traditional works "Hundred Children Picture", "Hundred Longevity Picture", "Futian Shoudi", "Fu Lu Shouxi", and "National Beauty"; modern works "Tiger Power", "Shepherding Picture", "Feng Zikai Cartoon", "Zheng Banqiao Calligraphy", "Wine Brewing Picture", "Wuzhen Caishen Bay", etc. Most of its patterns are drawn from traditional folk patterns, with a local flavor and national characteristics. On June 7, 2008, the blue printed cloth printing and dyeing techniques applied by Shaoyang County, Hunan Province and Fenghuang County, Hunan Province were approved by the State Council of the People's Republic of China to be included in the second batch of national intangible cultural heritage list, with heritage number -24. On July 16, 2014, the blue printed cloth printing and dyeing techniques applied by Tongxiang City, Zhejiang Province were approved by the State Council of the People's Republic of China to be included in the fourth batch of national intangible cultural heritage list, with heritage number -24. On May 24, 2018, it was selected into the first batch of national traditional craft revitalization catalog.