According to historical data, the book binding method in the early Tang Dynasty was mainly based on scrolls, and it developed to the middle of Tang Dynasty. At that time, people improved the scroll binding for the purpose of saving paper materials, protecting pages and facilitating review: with long paper as the base, the pages were staggered and pasted on the base paper according to a certain proportion, which means that when rolled up, they looked the same as scrolls from the outside, but after being unfolded, they "flew page by page, like a whirlwind, and the scales were in phase."
Due to historical reasons, Long Lin's binding technology has long been lost, and only one piece of the book "Filling the Gaps in Publications" is left in the collection of the Palace Museum. Long Lin's Collection of the Palace Museum was compiled by Wang Renyi in the Tang Dynasty and dictated by his wife Wu Cailuan. At the beginning of the volume, at the end of the bell, Song Xuanhe and the seal of Emperor Qianlong in Qing Dynasty, and at the end of the volume, there is Song Lian's postscript. This book has always been known as a rare treasure because of its exquisite binding and exquisite calligraphy, and its unique book has been handed down from generation to generation. It has been recorded in Song Dynasty's Xuanhe Book Spectrum, Zhongxing Pavilion's Storage of Paintings and Calligraphy, Qing Dynasty's Shiqu Baodi, and Chinese Rare Books Bibliography. After the completion of the book "Buque Bu Que Qiyun", the silent years passed by, and dynasties changed, and it was displaced between the court and the people. In the summer of 1947, it was purchased and collected by the Palace Museum. Compared with the descriptions of various books, except that Song Huizong's clay inscription was lost and only four of the seven seals of Xuanhe were preserved, it was still intact.
It is precisely because of the unique copy of Long Lin-made "Make Up the Errors and Cut the Rhyme" that its production technology has been lost for thousands of years, and the materials available for reference and research are scarce, which leads to many friends from all walks of life who like and study Long Lin's clothes asking "What is Long Lin's clothes?" "What is its specific system?" "Are Long Lin clothes, cyclone clothes and fish scale clothes the same thing?" There have been many doubts about such issues.