Because of the different proportion of raw materials, rice paper is divided into special leather (extra clean leather), clean leather and cotton material.
The difference between the three:
Special approval is based on freehand brushwork; Pure leather is used for small freehand brushwork such as flowers and birds; Cotton is generally used for calligraphy.
Generally speaking, cotton material refers to paper whose raw material is about 40% sandalwood skin, which is thinner and lighter; Peeling means that the content of sandalwood bark reaches more than 60%; The content of sandalwood skin, the raw material of special leather, is above 80%.
The heavier the leather composition, the greater the tension that the paper can bear and the better the quality; The corresponding use effect is: the higher the proportion of sandalwood, the richer the ink layers, the better the ink moistening effect, and the more able to withstand repeated rubbing with pen power without damaging the paper surface.
Extended data:
Related development of Xuan paper;
During the Tianbao period of the Tang Dynasty, there were "paper and pens" on the boats of Xuancheng County among the tributes shipped to Chang 'an, the capital of China. It can be seen that there were already papers and pens produced in Xuancheng County at that time.
After the Song and Yuan Dynasties, a group of Cao Shi moved to Xiaoling, Jingxian County, Anhui Province, and began the process of making "Xuan Paper" with green sandalwood bark as raw material.
During the Xuande period of the Ming Dynasty (1426- 1435), the production of "Xuan Paper" was supervised by the royal family.
Baidu Encyclopedia-Xuan Paper