The development of the gold-sprinkled paper technique

During the Northern Song Dynasty, there were already records of the appearance of the ruffled paper. Su Yijian described it in the "Four Compendium of the Study" as "with patterns like brocade and water, crisscrossing the text." During the Qing Dynasty, papermaking artisans improved traditional techniques, combining the gilding process with the ribbing paper-making technology to form a unique paper system exclusively for the imperial court. In the 54th year of the reign of Emperor Kangxi (1715), Wang Chengzhi, a craftsman from Hangzhou, invented the copper wire curtain weaving technique, increasing the density of the curtain patterns to 12-14 per centimeter and creating subcategories such as narrow curtain ribbed and wide curtain ribbed. During the Yongzheng period, this technique reached maturity, and the adhesion rate of the gold-sprinkled paper and gold foil produced remained stable at 8% to 12%