Cooked Xuan is coated with alum when it is processed, so the paper is harder than raw Xuan, and its water absorption capacity is weak, and the ink color will not spread when it is used. Because of this feature, cooked propaganda is suitable for meticulous painting rather than ink painting. Its disadvantage is that it will appear "alum leakage" or brittle crack when stored for a long time.
Cooked Xuan can be reprocessed. Coral, mica paper, cold gold, wine gold, glutinous golden flower tendon and peach tiger skin are all reprocessed colored papers.
Protection of rice paper
First of all, rice paper should be moisture-proof. Wrap it tightly with moisture-proof paper and put it in a higher place in the study or room. Open doors, windows and bookcases on sunny days, so that the moisture absorbed by rice paper in the bookcase can be naturally emitted.
Secondly, rice paper should be insect-proof. Xuan paper is called Millennium paper, but it is not absolute; To be safe, you can put one or two mothballs.
When collecting rice paper, it is better to be white and delicate, with clear texture and softness.