Traditional paper processing technology is an inseparable part of the history of papermaking development in my country. It played an extremely important role in ancient times and also played a certain role in the history of papermaking development in the world. Even in modern times, it is still an important carrier of calligraphy and painting, and undertakes the glorious mission of promoting Chinese culture. Traditional processed paper is to make the original hand-copied paper (raw paper) into processed paper through multiple processes such as dyeing, sizing, filling powder, waxing, mounting, sprinkling gold, leveling, watermarking, and drawing. The purpose is to make it more suitable for writing, printing or for calligraphy and painting, increase the artistry and appreciation, and improve the cultural connotation. The craft products of traditional processed paper mainly include: hand-painted gold-painted wax paper, gold and silver printed paper, mud gold paper, wood-panel color watermark paper, silk paper, calendered paper, etc. In recent years, Chaohu Deyingxuan has been committed to the restoration research and production of some traditional processed paper names that have been lost for many years and still have practical value today. In 1999, the production of the traditional processed paper name hand-painted gold-painted wax paper that has been lost for many years was successfully restored. Rongbaozhai commented on the hand-painted gold-painted wax paper: "It is finely crafted and made of exquisite materials. Its production process is innovative on the basis of tradition, and it is the best among similar products at present." In 2002, its production process was included in the "Complete Collection of Chinese Traditional Crafts" and "Papermaking and Printing", major scientific research projects of the "Ninth Five-Year Plan" of the Chinese Academy of Sciences. In 2000, Chaohu Deyingxuan established a cooperative relationship with the "Department of History of Science and Technology and Archaeology of Science and Technology" of the University of Science and Technology of China. Through cooperation with the relevant research group of the department, it successfully reproduced the "Gold and Silver Printed Paper" of the Ming Dynasty and jointly published a paper "Gold and Silver Printed Paper" in "China Printing". CCTV-10's "Approaching Science" column recorded, interviewed and reported on this processing process, and its production process was also included in the book "Papermaking and Printing" edited by the Chinese Academy of Sciences.