At the beginning, Yuntao had great ambitions to make all the people in the world wear dry shoes.

But after working for a long time, the physical, chemical and biological knowledge she learned in high school was not enough.

She began to secretly regret that she did not choose science in college.

Natural rubber is too soft and breaks easily when it hits hard objects. In other words, if it is punctured somewhere, it will not be waterproof at all.

When she wore shoes before, she felt that the shoes on her feet were ordinary and not as good-looking as those of her classmates.

I never thought that such an ordinary pair of shoes embodies a lot of technical skills.

It is the result of thousands of years of hard work by many people.

Nothing ordinary.

"It's okay, a rubber band will do, it'll be useful as a waistband," Yun Huachun said.

When they first wore them, they had to cut off a section of the elastic band inside the pants because the waistband was not elastic.

Yun Huachun encouraged his daughter and found that the rubber band was fine.

"Just heat press the natural rubber and it will have its own elasticity. I didn't make the elasticity." Yuntao sighed.

Then we started working on the problem of papermaking.

Yun Huachun took the opportunity to go to Nantong Mansion to inquire about the situation of the Yin family.

Before Qiu Mingfeng left, he introduced several old people from the prefecture to Yun Huachun, all of whom had resigned and returned home.

Although he is not a high-ranking official, he knows everything about Nantong Mansion.

Before leaving, Qiu Mingfeng told Yun Huachun that he could ask around if he had any unclear questions.

Yun Huachun went there this time just to find out about the Chonghai Bookstore owned by the Yin family.

"The Baron is asking the right person when he asks me." Zhang Meng put down his tea bowl and said.

Zhang Meng lived in a small courtyard in the city. The courtyard was close to the street, and a lot of excitement came from outside the courtyard walls.

"The Yin family is not an ordinary family. The Yin family is one of the centuries-old aristocratic families! Chonghai Bookstore is their family's main business." Zhang Meng said, his bright eyes widening a little.

"How does that compare with the Jiang family in Jiangxi Mansion?" Yun Huachun asked curiously.

"Of course it's incomparable! No matter how prominent the Yin family is, it only has a genealogy of two hundred years. The Jiang family has been passed down from the Shang Dynasty to the present. It is said that they are descendants of Taigong Jiang."

"In recent years, the Yin family has won a lot of good reputation among scholars by relying on the rule of copying books for free, and it has gradually become more prominent."

Yun Huachun nodded after hearing this. It turned out that he was from an aristocratic family. No wonder they didn't give him, the baron, any face.

Some aristocratic families are so arrogant that they don't even give them the emperor's face.

"But why did the baron ask about this?" Zhang Meng asked curiously.

Zhang Meng was extremely polite and respectful to Yun Huachun.

One is because Yun Huachun is a baron and his status is here.

The second reason is that Yun Huachun did a lot of good things, which made the government's tax revenue a lot higher. Zhang Meng's son was working as a catcher in the government office, and the county government tax revenue was high, and the rewards were also large, making life a little easier.

Such a person who lives and feeds like his parents is naturally more worthy of admiration than his title.

"It's not a big deal. Didn't I open an academy? The academy has a lot of paper demand. There was some rift between me and the Yin family, so they cut off the paper business."

"Oh, this happened!" Zhang Meng was surprised.

Even a person who is not a yamen official has heard how good-tempered Baron Yun is in front of him.

Every time the clerk went to the office, he would give them tea, and when it was time for dinner, he would invite others to eat with them.

Whether it was before becoming a baronet or after being granted a baronetcy, it has never changed.

What rift can there be between him and the Yin family?

Zhang Meng preliminarily thought that the Yin family was bullying others. After all, they were a big family.

"I heard that the Jiang family also has a bookstore in the city, but the paper sold in their bookstore is more expensive, with some kind of pattern and fragrance, and is specially used by nobles."

"Baron Yun, why not try to find the Jiang family?"

"Let them print less, and the price will probably be cheaper." Zhang Meng suggested.

Even the prefect here would not dare to provoke Nantong's aristocratic family easily.

"I have my own solution for this matter. Thank you Brother Zhang for taking the trouble for me." Yun Huachun said with a smile.

The two chatted for a while, and then Yun Huachun left the yard.

I walked to the bookstores of the Jiang family and the Yin family and took a few glances. The Yin family's bookstore is called Chonghai, and the Jiang family's bookstore is called Qingyun.

It was a quiet environment, and most of the people coming in and out were people in gorgeous clothes, or servants carrying boxes to buy things.

The other one was a shop close to the people. The shop was crowded with books, there was no decoration at all, and most of the people who came in and out were scholars in plain clothes.

The Yin family's business looks really good.

Yun Huachun took a few glances, then went to buy a leg of lamb, planning to take it back and cook a roast lamb meal for his daughter to reward her.

When the spring flowers in April faded, Yun Tao spread the paper she made on the table in her main room.

"Mom and dad, what do you think?" Yuntao asked.

It took her more than a month to make this paper.

It's not because the recipe is difficult. In fact, the first batch of paper clouds took a week to make, but they were not smooth enough and too rough.

Later, she continued to adjust the craftsmanship, and finally it was much smoother, and it smelled a bit like a defective product of modern technology.

Even if it is a defective product, it can be called excellent in this era.

"Yes, it's very good. It would be great if you can print books." Yun Huachun said.

"My daughter is so amazing." Wan Hongmei also praised her.

"It's just that the trees are too useless. A lot of trees need to be cut down to make paper. It's easier to cut down trees than to plant them." Yuntao sighed.

Nature is not inexhaustible; what is borrowed must be returned.

"Then take the children in the academy to plant trees another day..."

"Daughter, how are you doing with the papyrus I mentioned?"

"It's done, No, it's down there. This is easy." Yuntao said, pulling out a stack of straw-yellow rough paper from underneath.

Unlike the paper above which is white and translucent, it is so rough that the fibers are all on it.

"Okay, this will do." Yun Huachun smiled and touched his daughter's head.

"But Dad, why do you want to do this? This paper is not good for doing homework." Yuntao asked curiously.

"This is not for students in the academy, but for other people."

"who?"

"Dad will tell you in a few days." Yun Huachun said mysteriously.

Yuntao worried about making paper all day long, and also cared about Li'an's things. She was so busy that she didn't get to the bottom of it.

Yun Huachun went back to the study alone to write a letter, then took a book and some straw paper, wrapped them in a bag and had them sent out.

After doing all this, Yun Huachun asked his daughter something.

"Tao'er, are you willing to teach this recipe to others?" Yun Huachun asked.

Yuntao sat under the stone bench in the courtyard, touching Baozi Youtiao's head and looking up blankly, "This papermaking technique is not original to me? It can be taught, but I am too tired to teach it."
Chapter completed!