"Lead printed version?" Zhou Jingzhi was stunned and asked back, "Isn't it a Qingcheng version?"
Luo Tian replied with certainty: "No, although the two are very similar, they are just similar in appearance and form, and are completely different in technology."
Zhou Jingzhi shook his head helplessly and raised the information in his hand: "Look, the one registered here is a Qingzhi version. It seems that the collector himself has also gone."
"Lead printed books are ancient books printed using modern lead printing technology. In the 23rd year of Daoguang in the Qing Dynasty (1843 AD), Shanghai established the earliest lead printing publishing institution in my country - Mohai Library. In the seventh year of Xianfeng, the earliest Chinese lead printed version "Liuhe" was published. Cong Tan. Since then, many ancient books have also adopted the lead-printing method, and the late Qing Dynasty and the Republic of China have mostly been wired. "Luo Tian opened the cover of the book that was almost completely dispersed: "This is the earliest Chinese lead-printing version of "Liuhe Cong Tan", .”
"Okay, the appraisal work is completed. Now we need to clean up the work. There are insect spots and mold spots on it, and we need to repair it with a perfect combination." Zhou Jingzhi is worthy of being an expert, so he immediately pointed out the repair method.
"A perfect match?" Luo Tian heard such a strange statement for the first time.
"Yes, you don't know, the restoration of ancient books is also divided into divisions. This perfect combination is the unique skill of the Beijing School. Put the paper in a pot and mix it with natural alkaline solvents, add the color and boil it into porridge. There are no books that repair insect-eaten animals.
Any trace is perfect in the industry." Zhu Jingzhi took out Pinxuantang's paste: "This is the paste we specially use to repair paper."
The recipe Zhu Jingzhi was going to give Luo Tian just now was the recipe for this paste. This is the biggest secret to repairing the master. Generally speaking, he will never tell others.
"Although you are unwilling to accept this recipe, there are some things that can still be heard, such as the essential or commonly used ingredients in this paste. The first is alum. The function of alum is to prevent ink from smudges from staining some ancient books.
During printing, flour is added to the ink, and alum itself can prevent mold. The disadvantage is that alum can acidify and brittle the paper. The second is that honey is used to reduce the expansion coefficient of the paper, which is very effective for dot inserts and insect replenishment.
It also has the effect of preventing ink from smudge. The disadvantage is that it extends the air-drying time of the paste and is easy to attract insects."
Luo Tianzhen didn't expect honey to have this effect: "But the weather in the north and south is different, so you should also pay attention to pouring away when using these raw materials."
"Not bad, Luo Tian, I'll learn to learn something immediately." Zhu Jingzhi praised: "I did not read the wrong person. You kid has this talent."
"Then what other commonly used raw materials?" Luo Tian became more and more interested.
"Spinelling, cinnamon: The effect is to deworm, the disadvantage is that it is easy to change the color of the paper, so you must pay attention to the amount. The most commonly used one is Bletilla striata, which increases stickiness. The disadvantage is that it is not easy to unmount when someone repairs it in the future, and the weather in the north is dry.
It is easy to wrinkle after adding too much, and the ancient calligraphy and painting shops that are repaired in this way are uneven."
"I understand." Luo Tian pointed to his brain: "It's all here."
"Are you all here?" Zhu Jingzhi then realized that Luo Tian had not taken notes. He was a little surprised: "Did you not take notes?"
"Yes." Luo Tian said, re-explaining what Zhu Jingzhi said just now, not even a word. Zhu Jingzhi almost fell down when he heard it: "You... are so amazing, you are
It’s like you can never forget it, no, it’s like you can never forget it!”
"My memory has been good since I was a child." Luo Tian suddenly remembered something when he was a child. When he was eleven years old, he lived in a welfare yard. There was a row of trees in the yard, which looked almost the same, but Luo Tian could see that
The difference is that when he was sixteen years old, he went back to the welfare home and could still remember that the one he had slingshot was on the fourth one on the right. Paying attention to the details seemed to be a habit he had developed since childhood.
"No, good, okay, now I'll demonstrate how to stick and bind, you can watch it." Zhu Jing guessed that Luo Tian would not forget, and did not slow down the movements in his hands at all, and the ancient books scattered pages were scattered.
The pages of the book gathered together in his hands and became complete again, like magic.
"Okay, it's done!!" Zhu Jingzhi put the repaired "Liuhe Congtan" on Luo Tian's hand: "Look at it."
All the original insect eyes disappeared, and the pungent musty smell suddenly disappeared. Luo Tian exclaimed: "This is the so-called magical skill, right?"
"You kid really know how to praise people." Zhu Jingzhi suddenly asked him: "How long can you stay in Beijing?"
"At most, one week." It's been long enough.
"Okay, you will stay in Pinxuan Hall this week and don't go anywhere."
It seems that Zhu Jingzhi wants to teach everything he has in this week. Why is this scene so similar to that time in Lu Tai'an? I thought that Zhu Jingzhi had a prejudice against Lu Tai'an not long ago, and now he is doing it similar to Lu Tai'an.
Luo Tian felt funny when he was about to happen and couldn't help laughing out loud.
"What are you laughing at?" Zhu Jingzhi felt that Luo Tian's smile had a deeper meaning.
"No, nothing." Luo Tian felt that it would be impossible not to say it: "I was thinking that all my masters acted very similarly, with limited time professors and cramming education."
Zhu Jingzhi was not stupid: "You mean that Lu Tai'an taught you this way at that time?"
"right."
"I have never seen this Lu Tai'an before, but I heard that his jade-making methods are first-class. Many first-class appraisers have been deceived by him. It seems that they are outstanding, but I don't like to cheat by nature.
, I can't like it, but it's not as targeted as you think." Zhu Jingzhi mentioned Lu Tai'an's matter and quickly clarified it for himself, so as not to end up in an unwilling crime.
"I understand, Master." Luo Tian giggled in his heart, and indeed said that when he is old, he is just a child. This old man also wants to coax him as a child. It turns out that's true.
"Okay, I'll show it here first." Zhu Jingzhi moved out a stack of old books from the cabinet: "These are all a batch of ancient books I collected before, so you can use them for experiments."
Luo Tian roughly looked through it and chose a book: "You should save this book well. This is a song-engraved book with a page of gold. You have found a treasure!!"
"Song-engraved version?" Zhu Jingzhi held the ancient book in his hand in disbelief: "I remember this book was collected in the Liuli Factory, and it was collected in the store next to me. It turns out that I just found a vacant one!!
”
"That's not true, Master." Luo Tian said: "How many pages do you have in this book? The price of gold is its value."
Zhu Jingzhi never expected that he would take it back randomly for repair experiments and had such a treasure mixed in the book. He gave Luo Tian a thumbs up: "You are awesome!"