The old things I repaired have become fine

Chapter 315 Qingdeng is great! But why do you still have to rely on me in the end?

"Pour water."

"Don't be in a hurry. Pour it slowly in a circle and try to pour it as evenly as possible."

"Okay, now you can start kneading the dough - hey, slowly, stir it clockwise over and over again, don't rush!"

Kneading noodles.

Knead the dough.

Add flour.

Pour more water.

Knead the dough again...

Even though there was a young lady with a beautiful smile, fragrant breath, and who had been guiding him for an hour without any impatience and correcting him closely, Shen Le still felt like he was about to explode.

It is useless to have a physique that has been strengthened N times by copper plates, it is useless to have strong enough mental strength, and it is useless to activate talismans and strengthen one's control to the limit.

The dough under your hands is either wet and sticky, or dry and falls all over the floor.

After much trouble, the dry dough Shen Le made on her own was not even as good as that of an experienced housewife.

"...How about I help you knead some dough first?"

The sun moved slowly, and finally, it was time for Tianxianglou to start working and prepare food for business. Xiaoyu looked at the sky outside and felt a little anxious:
"Knead a few with different dryness and wetness, why don't you try using them first? If you need more, I can help you later."

Shen Le had no choice but to let her go. He took out the tattered ancient painting he bought last time, grabbed a few pieces of dough, and rolled over one by one.

Roll it around, pick it up and look at it carefully, then put the cleaned painting under a microscope;
Change the dough, roll it again, and observe again...

"It seems that it is not very useful..."

First, it is very difficult to control the strength. If you roll too lightly, the dust will not be removed. If you roll too hard, the fragile paper or silk will be torn on the spot.

Second, no matter how well the dough is kneaded, no matter how dry and wet it is, no matter how soft and sticky it is, there is still no way to ensure that it will not crumb - or, the degree of crumbing cannot be compared with industrial products.

It is not visible to the naked eye, but it is very clear under a microscope:

Clean the surface with obvious flour residue;
There are also obvious fabric fiber residues on the surface of the dough.

Compared with the microfiber rag used by Shen Le, the amount of residue is even larger and it is completely unusable.

Shen Le sighed, turned on the computer, and according to Teacher Zhang's instructions, he used "Thangka" and "restoration" as keywords to search for information again.

I just downloaded a few papers, and a message from Professor Zhang came again:
"How's the kneading going?"

Shen Le sent a tearful expression.

Teacher Zhang replied with a series of laughing emojis. After laughing, he paused for a long time and sent a long and serious message:
"The practice of using dough to clean thangkas came from the snowy land. They use 'Bachi', which is tsampa kneaded into a tsampa ball with appropriate dryness and wetness with clean water, to wipe off dust and dirt.

If you can’t handle the dough, you don’t have to do it. You don’t have tsampa anyway…”

Shen Le: “…”

So what was the purpose of all that trouble I had before?
Even so, he couldn't give up the dough plan for the time being. Shen Leping calmed down, selected a heavy-colored silk painting that was closest to the Buddha shrine, and began to experiment:

Six test blocks of 20X20 cm were selected on the screen and divided into six areas.

Among them, three areas use three different doughs with different water contents, carefully knead them along the longitude and latitude lines, and slowly remove the dirt;

For the fourth area, use a museum-grade vacuum cleaner with a soft-bristle brush;
In area 5, use a chemical sponge to press lightly along the warp and weft. When the contact part becomes dirty, you can cut off the dirty part and continue to use the new part.

This cleaning method is said to be less likely to leave residue, and is often used in cleaning cultural relics in Europe.

In area No. 6, use a recently patented dust removal cloth, a microfiber towel, to gently wipe the fabric surface directly.

After the experiment, we observed each one under a microscope. As expected, traditional technology still cannot compare with modern technology. The dough residue left behind is the most among all the solutions.
Then there is the microfiber towel. When using a handheld UV lamp to shine on the surface of the painting silk, obvious residue can be found. In other words, this thing will fall off as you wipe it.
Chemical sponges also clean well, but microscopic examination of used sponges revealed a certain amount of fabric fibers clinging to the sponges…

"So, we still have to use a vacuum cleaner in the end..."

Shen Le sighed helplessly. It is very troublesome to use a vacuum cleaner with a soft brush. You have to hold the soft brush in one hand and slowly sweep along the warp and weft of the fabric.
In the other hand, he held a special museum-grade vacuum cleaner with the smallest nozzle and the air volume set to minimum, slightly suspended above the fabric.

Move your hands parallel to each other, and the dust swept up by the soft brush will be sucked away by the vacuum cleaner. If you move closer, the bristles will be sucked away together, but if you move farther away, you won't be able to suck up all the dust...

In short, it was very tiring. Not to mention the museum-grade vacuum cleaner, the smallest nozzle was very small, and it took only a day to clean the paintings on the Buddha shrine, which was smaller than a nail.

【I'll do it! 】

The little oil lamp couldn't wait to interrupt again. Not only did it interrupt, it also condensed a cherry-sized ball of light, which hung vaguely on the painting silk and rolled quickly.

The ball of light rolled past, and a cloud of dust flew up and stuck to the area around it. Shen Le almost shouted:

"Wait!" He quickly handed over a piece of white paper and placed it under the light ball. He lowered his voice and instructed almost in a whisper:
"Put it down...put the dust down...put it on the paper..."

The light ball turned a circle, and the dust fell off, revealing a clean, bright and crystal light ball. Shen Le didn't have time to praise the small oil lamp, and quickly jumped to the microscope:
"Let me take a look at the dust first! Don't move! - Don't move!!!"

He carefully observed the dust under a high-power microscope, and then used a handheld microscope to observe the surface of the silk painting. After a round of observation, he waved and called Xiao Oil Lamp over:

"Qingdeng, I am really grateful for your help. But you see, the dust you sucked up with static electricity is not as much as the paint powder you sucked up... this..."

[Let me think about it…]

The ball of light flickered again and again in the air, as if it was thinking. After a long while, it jumped up:

[I understand! The magnetic field cannot be too strong! Many of these pigment powders are minerals and are easily attracted by the magnetic field! ]

Shen Le: “…”

No, little oil lamp, when did you master the relationship between electromagnetic conversion?
Can you control static electricity while preventing yourself from generating a magnetic field?

You are much better than me in this area!
The silver-white ball of light spun on the silk screen once, twice, and three times.

This time, Shen Le continued to observe under the microscope and found that the control ability of the small oil lamp had improved significantly:
The percentage of pigment powder sucked up has dropped from more than 50% last time to no more than 20%;

The dirt removal ability has been significantly improved. When observed under a handheld microscope, at least 60% of the dust particles between the fibers have disappeared!

"It would be better if it could be cleaner..."

Shen Le sighed softly. The silver-white light ball flickered a few times, and suddenly began to split, from the size of a cherry to seven or eight soybean-sized light balls, and then from soybean-sized to mung bean-sized.

Then, the light balls formed a uniform grid array and slowly sank above the painting silk, less than half a centimeter away from the painting silk, pushing it parallel to the painting silk...

“It looks really good!”

Shen Le gave the little guy a thumbs up. The silver ball of light jumped up and down happily, performing a "Brownian motion of tert-butyl lithium" in the studio for a while, and finally started to work.

They move forward along the longitude and latitude of the painting silk, releasing dust, and then move forward again, releasing dust...

Over and over again, seven or eight times, a job that would take Shen Le a whole day to complete, the little guy only took half an hour to clean it up!

"Qingdeng, great job!"

After Shen Le verified the cleaning effect under a microscope, he praised him profusely:
"You're amazing! You've helped a lot! When I'm done with this, I'll earn some points and take you to the artificial lightning test site to eat lightning!"

[Great~~~]

The little oil lamp danced happily. In the whole room, except for the indicator lights of the instruments, all the lights flickered with its movement.

The cameras above the heads, those specially used to record the repair process, even started to hum, and the flashlights flashed one after another...

"Okay, Qingdeng, help with the dust removal." Shen Le smiled and looked up. After the small oil lamp had vented its excitement and joy, he smiled and patted its body:
"Don't be in a hurry, take your time!"

[Okay!!!]

The lights in the room suddenly brightened. Then, the silver ball of light turned into a light bead, fell on the surface of the shrine, and began to move slowly...

【pain!】

[It hurts! ]

[It hurts, it hurts, it hurts—]

The sharp cry of pain immediately pierced the eardrum. Shen Le was stunned for a moment, and quickly called for a stop:

"Qingdeng, wait a moment! It seems it can't stand it——"

[It's okay, just bear with it! It will be fine soon!] The silver light ball retreated slightly, but did not leave, repeatedly persuading:
[Look, even using a vacuum cleaner or a sponge will hurt you! I'm being the gentlest!]

[It hurts! It hurts! It hurts, it hurts—]

The shrine ignored it, or perhaps the spirit had just risen up and was unable to understand what it meant, so it just kept shouting.

Shen Le's heart moved, and he took a half step forward, activating the talisman representing "healing" and "growth":

The spiritual power fell onto the surface of the shrine like drizzle, and soon the cry of pain from the shrine weakened and gradually disappeared.

However, the spiritual light on the shrine was still huddled up in fear, refusing to open. Shen Le had no choice but to pat the small oil lamp:
"Qingdeng, please step back first. Your electricity contains a strong thunder tribulation force, and the newly born weapon spirit may not be able to withstand it. Come, let me think of another way..."

Alas, among the four new talismans given by the copper piece, one seems to have a cleaning function. However, he has only had this talisman for a few days and is not familiar with it!

　Ask for a guaranteed monthly ticket!

　　Ask for a guaranteed monthly ticket!
　　The cat makes the small oil lamp dance for you to see~~~
　　
　
(End of this chapter)