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After Chu Chen assigned the task, everyone started to act separately.

Although it is an assigned task, the starting point of the work is to collect the paint from Ji Junguo.

Ji Junguo took out a small set of standard equipment, saying that the standard equipment is actually similar to the cleaning tools commonly used at home.

They are a small bucket and a small brush, which are similar in shape to the broom and dustpan used at home, but the scale has been reduced by dozens of times. They can be easily held in the hand and look like children's toys.

He squatted on the ground cautiously, and gently swept the colored soil against the wall into the bucket.

These colored soils are the shell paints peeled off from the murals.

Then put the soil into a sealed bag, and Ma Wei reached out to take the sealed bag, and then numbered it with a red marker.

This is the first copy, and nine points will be randomly selected from these soils to reduce the probability of chance as much as possible to ensure that the extracted pigments belong to the murals.

Awei took the colored soil and went to a special microscope laboratory to dissolve, filter, and dry the colored soil to distinguish the soil from the pigment.

Afterwards, the extracted pure fuel was observed under a microscope and compared with the literature to determine what the raw material of the pigment was.

This is not only a cumbersome process, but also a special test of a person's knowledge reserve.

After all, in the eyes of ordinary people, the ores may be exactly the same, but in the eyes of scientific researchers, they are two completely different things.

It is possible that the colors of the two ores are basically the same, but the transparency and purity are slightly different, which are two completely different things.

Not to mention, what Ma Wei looks at is the pigment powder that has been ground into a powder that cannot be broken any more. This kind of difficulty is undoubtedly huge.

There are also some pigments that are water-soluble, so the above method cannot be used.

A water-soluble fuel like this can only be separated with oil, so as to ensure that all the pigments will not be missed.

Therefore, the ten samples are only a corresponding method. To really identify the pigments contained in this small handful of colored soil, the engineering materials will be huge.

However, as cultural relic restoration personnel, the last thing they are afraid of is cumbersomeness. As long as they find the right direction, no matter how complicated the process is, they will be happy.

As for Song Chaochao and Li Jiale, they were responsible for numbering and registering the origin and status of the raw materials. They had to wait for Ma Wei's work to be completed before they could carry out such work.

The two of them had nothing to do, so they went to help Ma Wei look up the information together, so they could do it faster.

As for Su Yuanyuan's work, let alone mention it, it will have to wait after Ma Chao's work is completed.

However, she won't let herself be idle, stay next to Ji Junguo, and practically help Ji Junguo collect some things that he didn't notice.

Seeing everyone's work going on in an orderly manner, Chu Chen fell into deep thought as he looked at the hollow problem on the mural.

Hollowing refers to the separation of the ground layer and the support due to the loss or weakening of the bonding performance between the ground layer and the support of the mural.

To put it bluntly, it is due to the age and the loss of adhesiveness of the adhesive used at the beginning.

Once there is an empty drum, it will generally cause the surface of the mural to crack and bulge.

If it is more serious, due to the influence of the mural's own gravity, it may cause the mural to fall off.

As far as the colored soil or powder collected on the ground by Ji Junguo just now was part of the murals fell off and fell to the ground due to hollowing out.

How to solve this problem?
Standing there and thinking about it, I can't think of a solution for a long time.

Chu Chen decided to go back and look up relevant classics to see how the ancients made murals, and whether they now have the ability to recreate the adhesives at that time.

Immediately, Chu Chen went to the library dedicated to storing cultural relics and restoring classics.

This library is a library specially established by the country for the restoration of cultural relics, which includes all the classics that can be found on the market.

Not only that, but there are also some people who are already lonely outside, remember to click, you can also find them here.

Of course, access to such a library requires very high permissions.

And Chu Chen is a staff member who has reached this level of authority.

Not only that, but he also has the right to bring an assistant in to browse with him.This can also be regarded as a little privilege for national cultural relic restorers.

Xiao Yu followed Chu Chen into the museum, looked at the towering bookshelves in front of him, typed the books on them, and even sat on a ladder.

His eyes widened in shock, he didn't expect that the collection of books in the museum would be so rich.

After a rough scan, I found a large number of out-of-print books that were no longer available outside.

Chu Chen gently ordered: "You can find the books you are interested in and read by yourself, and come here to find me when it is time for lunch."

Xiaoyu had long been eager to move about some books in the library. Hearing what Chu Chen said, she couldn't wait to say goodbye to Chu Chen, and went straight to the bookshelf she had just fancy.

The library where Chu Chen was located mainly contained books on adhesives.

Even so, it is not easy to find mural adhesives that match the characteristics of the Tang Dynasty when there is a whole room full of books.

It stands to reason that the adhesives produced by chemical products are much better and stronger than the ancient adhesives.

If you think about it this way, the adhesive produced by modern technology is the most suitable choice.

However, in the restoration of cultural relics, what should be considered is not to restore the murals to make them look better.

It is actually wrong to hold this idea. It is more important to face the history, face the history squarely, and respect the things invented by the ancients under the difficult conditions at that time.

It is used to restore the handed down works that the ancients have preserved to this day.

This is what a cultural relic restorer should do most, not just to restore the cultural relic to a new one, or to make it more beautiful in modern aesthetics.

It was because of this that Chu Chen decided to seek the adhesive used by the ancients to restore the murals in the tomb.

Chu Chen took out all the adhesives and books that might be related to the murals of the Tang Dynasty, flipped through a few pages of each book, and then understood the general content.

Among them, all the books related to the murals of the Tang Dynasty were kept. Chu Chen put these books aside for other items, such as the repair adhesive for painting paper.

This method of flipping through the classics made Chu Chen's efficiency particularly high.