The correct way is to use natural batter mixed with musk and pepper, which can achieve the dual effects of repair and insect prevention. If the collector can't meet the above conditions for a while, he would rather not repair it for the time being and wait for experts to repair it. Don't rush to repair it.
Extended information Many rubbings, copybooks and paper-ink rubbings of the Republic of China are excellent, but the yellow spots on the layout are more embarrassing. This is because some calligraphers' workshops in the Republic of China, eager to save material costs, adopted a kind of paper called "glossy paper" (a cheap western-style industrial paper popular at that time) as the base paper of copybooks.
Due to the improper pH of western-style paper, it has a certain corrosive force, which leads to many old posts in the Republic of China suffering from "yellow spots". This regret has also taught today's ancient book collectors a lesson, that is, China's ancient books must stay away from all western-style papers, and the best policy is isolation.
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