The old things I repaired have become fine

Chapter 276: Weaving two inches of brocade satin a day, how many holes should be cut in it?
Despite all the complaints, students have needs and teachers have to find ways to meet them.

Teacher Zhang sighed, complained, and complained while calling friends in the circle.

It is not difficult to restore that piece of embroidered satin. As mentioned before, our old friends at the Palace Museum have already developed the technical path.

Unfortunately, the plaque with the words "Long Live the Emperor" embroidered by Emperor Kangxi that they restored is only a second-class national cultural relic. There is a first-class cultural relic above it, and the first-class cultural relics are further divided into Grade A and Grade B.

Among the first-class cultural relics, there is also a list of "cultural relics prohibited from leaving the country", which are the rarest of treasures and the national treasures among national treasures.

It is only a second-level cultural relic (?), and it was only under the banner of "solving the problem of replica weaving with supplementary materials" that we applied for funds and did this project:

Analyze fabrics, analyze raw materials, draw weaving diagrams, and weave on the machine——

Yes, just for this purpose, a large flower loom was specially built to weave brocade satin!
But the predecessors have set a path, so it will be much easier for the later generations to do it. Teacher Zhang made a few phone calls to his friends in Beijing, put down the phone, and waved to Shen Le:

"how?"

Shen Lefei rushed over and looked up. Teacher Zhang shook his head helplessly:

"They said that we don't need to go to the capital, we can go directly to Jinling. Jinling Yunjin Factory - show them the satin you want to mend, pay them the money, and ask them to make the same one. It's not a problem."

In fact, if people outside the circle just have money and walk to the door of Yunjin Institute with money, they may not necessarily weave for you.

what?
Want makeup satin?
Turn left to the Yunjin Museum next door. The lobby on the first floor of the museum is the Yunjin sales and clothing performance exhibition area. You can buy whatever you like.

If you are too lazy to run around, there are online stores now. Just click your finger and the goods will be delivered to your door.

Of course, if someone is really rich, they can always find someone to introduce them. If they want to make a dragon robe for themselves or a wedding dress for their children, it is not a problem as long as they are willing to spend money.

However, for someone like Shen Le, who had a piece of old satin with holes in it and wanted to request to weave an identical piece, he would have to make extra efforts.

After all, he wasn't making clothes, he was just cutting some holes...

As long as someone in the industry brings them in and they are willing to spend money, their attitude is still very good. After all, like all research institutions, Yunjin Institute’s research funding is never too much...

"Teacher, I have already taken the photo of the zhuanghuaduan. Is it okay to take a photo with a microscope of 1:100? Do I need to spray gold and then put it on the electron microscope?"

"Teacher, I have also measured the colors of each part of the pattern with a colorimeter. Is there anything else you want to measure?"

"I have also measured the diameter of the silk..."

Shen Le quickly brought out a bunch of data. Teacher Zhang looked at him and shook his head helplessly:

"You still want to go with nothing but a bunch of data? Show more respect to the teachers at Yunjin Institute. When you ask someone to do something, you should behave like you're asking someone to do it..."

Shen Le had no choice but to be obedient, holding the satin, and followed his teacher to Yunjin Institute.

In fact, it is not far, only one and a half hours by high-speed rail. However, it took a longer time to get from Zhuxi Town to Binhai High-speed Railway Station and then from Jinling High-speed Railway Station to Yunjin Institute.

When they got there, someone came out to greet them. When they talked about Shen Le's needs, the other party's attitude was also very good:
"Make a replica? No problem, we can do it. It's for repairing calligraphy and painting, right? You want it to be exactly the same as the original? Don't worry, leave it to us. By the way, do you want to see the process?"

Shen Le was really curious about the process. If it was just plain silk, he might have just done it by force - the warp and weft, pulling them horizontally and vertically, and just using his super powers to patch them up.

The pattern of the brocade satin is too complicated and I can't do it. Maybe the silkworm demon can do it?
However, Shen Le really didn't want to ask the silkworm demon for help. Experience showed that the paper made from the camphor tree carried the evil spirit of the camphor tree, and the brocade satin made by the silkworm demon must also carry the evil spirit of the silkworm demon.

Such a strong demonic energy will suppress the aura of the ancient painting itself and affect its spiritual growth!

Shen Le respectfully held up the embroidery satin to be repaired. A thin, gentle-looking female teacher took the satin, looked at it carefully, and smiled:

"Well, we don't have this agarwood crane and cloud pattern brocade satin. Mr. Shen, are you interested in cooperating with us on a project to repair this brocade satin?
When you publish the paper, you can be the co-first author..."

Shen Le had no objection. Anyway, whether the paper was published or not, he would have to pay for it. As for the paper, although he didn't rely on it for a living now, it wouldn't hurt to publish one more.

It would be great if you could take a look at the entire restoration, or replication process, to broaden your horizons and learn more.

He handed over a USB flash drive. The teacher who received him glanced at the information inside and smiled more vividly:
"A lot of work has been done, that's great. Well, this satin is a five-piece three-fly warp satin pattern..."

When colleagues meet, they use the same instruments and the same techniques, and everyone can understand the products they produce at a glance.

The three-dimensional video microscope was used to observe the fabric fibers, and the electronic silk ruler software was used to analyze the fabric structure. After watching it once, the female teacher knew what was going on: no need to redo it herself.

“The warp is agarwood color, strongly twisted in the Z direction, double-stranded, 0.5mm in diameter, and 16.12 strands/cm in density;

The weft is agarwood color, 4 strands are used, each strand is weakly twisted, diameter is 0.17mm, density is 4.28 strands/cm.

The texture is multi-colored and untwisted, with a diameter of 0.46mm and a density of 2.15/cm..."

The photos were taken and the color was measured. When the teacher gave the order, the interns ran to call up the software and imported the color measurement results for comparison:
"Open the database we made! Just compare it directly! If it doesn't match, take out the color cards!" "Ah, teacher, we still need special color cards after we have a database?"

Shen Le asked curiously. The female teacher smiled and waved her hand, leading them to a special room.

On the walls and shelves, huge thick books were spread out, filled with dyed silk wrapped around cardboard, with hundreds of different names marked on them:
Water red, silver red, moon white, willow green...

"Come and have a look. This wall is the color sample card of Yunjin velvet silk thread, 2010 edition. This side is the color spectrum commonly used in Jinling Yunjin."

The female teacher introduced them with pride:
"In the past few years, we invited a number of authoritative experts in Yunjin to select 27 commonly used colors as the first batch of research objects, and evaluated and corrected the accuracy of the colors and corresponding names in the sample cards.

Finally, we came up with a set of 27-color color cards that were screened, and then sent them for color measurement to get the corresponding LAB values of the 27 colors. As long as they match, there is no need to spend time to check them. "

Color selection and color measurement is a huge project. After the selection, you will have a foundation for the work and it will be easy.

The female teacher led them through the color card library and walked to her office. Most of the color test results had already come out. She sat directly in front of the computer and opened the software:

"Teacher, what are you doing——"

"Painting artist's drawing." The female teacher said calmly without turning her head:

"It is the basis for weaving brocade satin. In the past, it was all hand-painted, but now it is much better. Based on the pattern scans, we have summarized the algorithm of the design drawing--"

Her hands flew across the keyboard, opening page after page that Shen Le could not understand, and importing the detailed pictures of the damask that Shen Le had scanned.

Plane scanning, 3D video microscope photography, import pictures one by one, and the software automatically displays a progress bar:

"1%...2%...5%..."

"It's pretty fast." Although Shen Le couldn't understand it, he wanted to stick it on the computer screen. The female teacher smiled faintly:

"It's OK. But the accuracy is not high yet, and there are still many places that need manual correction. Well, let's go have a meal first, and the results should be out after the meal!"

After dinner, the calculation results did come out. The female teacher looked at it and compared it with the detailed picture of the embroidery satin, and was not very satisfied:

"We still need to continue to adjust. Alas, this algorithm is still not good enough. Training AI is too difficult!"

Don’t use my money to train AI...it’s a bottomless pit!
Shen Le's hair stood on end. Fortunately, the female teacher had already opened the CAD software skillfully and started to adjust the picture.

Shen Le looked at it left and right, and felt that this picture was a bit like cross-stitch, but it was much more delicate than cross-stitch, and the small grids were so dense that it hurt his eyes.

The female teacher painted very quickly and skillfully, and was completely absorbed in it. She didn't even look back or smile, and she didn't even move her body.

His hands flew quickly on the keyboard, and he moved the mouse from time to time to quickly fix the parts of the design that had incorrect algorithms.

Finally, she hit the Enter key with satisfaction, saved the result, and imported it into another software:
"Through the design, we can calculate the loom pattern, and then we can weave. Unfortunately, your pattern is too complicated and must be woven by hand. If you change it to a simpler one, it can now be woven on the machine!"

Shen Le leaned forward to take a look at the computer screen displayed by the software, and felt dizzy.

There were grids of different sizes, each with a different mark, black or white, a circle or a cross. He tried to read it once, then compared it with the original drawing, and after several rounds, he still couldn't understand it:

"What exactly is this?"

"Oh, look, this is the threading diagram, this is the threading diagram, this is the threading diagram..."

The female teacher was very patient with him, smiling and pointing out the things one by one. Shen Le looked at them for a long time, and became more and more dizzy. He raised his hands in surrender:
"Okay, I admit that I can't understand it and can't memorize it... Can I get on the plane now?"

"That depends on whether there is any vacant brothel..."

The pattern of brocade satin is carved out in sections and colored. Dozens of colors can be woven on a piece of fabric, so that the colors of the same pattern are not repeated from top to bottom and left to right.

This kind of weaving technology cannot be achieved by modern looms and can only rely on traditional huge flower tower looms.

A flower building requires close cooperation between two masters:
Weavers use their hands and feet to take charge of operations such as throwing the shuttle, scraping the pattern knife, passing the velvet tube, and beating the weft. They are mainly responsible for weaving the base of the brocade satin.
The flower puller sits on the flower tower and is responsible for operating on the flower book and carrying out the jacquard process.

Shen Le stood by and watched patiently for a long time, but did not see the embroidery silk extend one centimeter forward until he was dragged away by the teacher:

"Let's go! - Two masters can only weave a few inches of this brocade satin a day. You must be patient enough!"

　It's so hard to make up the satin... so hard... so hard...

　　The cat is so poor. The cat can’t afford to buy makeup satin. Woo woo woo woo…

　　
　
(End of this chapter)