After doing a good job of what Zhang Yuan explained, this time Wei Qing can also stay in Zhang's Mansion quietly for a few days to celebrate his birthday.

In order to entertain Wei Qing, Chef Wang cooks every day, although it is not as good as Zhang Yuan's craftsmanship, it can also be said to be delicious.

The process of papermaking has almost completed one-third of the process from cutting bamboo, cutting green, copying white, falling into the pond, cutting the material, and then dipping the billet.

Dahan has a cooking utensil similar to Ding, but there is no Dingzu called a wok, which is closer to the big pot of later generations.

In order to make paper, Zhang Yuan sent people directly to Lantian County to buy 80 large woks, all of which were made of iron, and the copper ones were not only not good for thermal conductivity, but also expensive.

After soaking in lime liquid, the white blank is left empty for a day or two to dry, and then it can be put into a large wok.

Originally, the system required that hundreds of bundles of woks could be placed, but Zhang Yuan couldn't find such a big one for a while, and it was too late for him to let the craftsmen at home do it, so he could only buy the largest woks on the market.

Seven or eight bundles of white blanks can be placed in a wok.

After putting all the white blanks into the wok, add water to completely cover the white blanks and cap them.

Then start burning directly at the bottom of the wok, and cook the white blank in the wok.

Because the fire below could not be extinguished, Zhang Yuan sent more than a dozen people to take turns to take care of the firewood day and night.

These 80 piles of firewood formed 80 bundles of smoke, which gathered together and could be seen from more than ten miles away.

The palace guards of Dinghu Yanshou Palace on the other side of Lantian Mountain thought that Lantian Mountain was on fire, and sent someone to take a look, but they were sent back by their old boss Wei Qing.

After all the white blanks in the wok were cooked and taken out, Wei Qing also left Zhangfu because he had to go back to Chang'an.

After Wei Qing left, Zhang Yuan began to study papermaking more calmly, and then started to work as a supervisor.

After the cooked bamboo material is taken out of the wok, it is immediately put into the clear water pond to keep it moist, and the bamboo materials that were originally put into the clear water pond need to be constantly rinsed to remove the rot, but because the rich and noble pond they built is connected to the stream, only need to put batches of bamboo in turn to put it at the water inlet.

This process lasted for half a month, and Zhang Yuanyuan saw that the bamboo material was not rotten, so he asked the rinsed bamboo material to be taken out and tied together again.

After the bundle is completed, put the bamboo materials into a stone mortar, and beat the bamboo materials to make them fine.

Then take out the fine material and break it evenly, and finally put it into the paper trough.

The paper trough is actually a pool, but it is made of loess instead of being dug into the ground.

When washing the bamboo, Lao Zhao took the men, women and children in the house to make paper curtains together, raised silkworms at home and woven gauze by themselves, and then used wood to nail the gauze to fix it, and it became a paper curtain.

Many servant women didn't know what Zhang Yuan was going to do, and they all talked about it in private, saying that it was a waste to make paper curtains with these gauze.

Zhang Yuan just smiled and didn't say anything when he heard it, as long as the people below did what they said, their mouths would be broken.

Originally, paper-making was to remove coarse tendons and make the final bamboo paper smoother and more beautiful, but Zhang Yuan did not let the people below do this in order to be able to make paper smoothly.

There are thick tendons, which can make those fine materials that have turned into slurry adhere to the surroundings, in fact, it is easier to produce paper, but the quality is not good.

But now is not the time to care about quality at all, as long as paper is made in this era, it is considered a cow break.

At this time, Zhang Yuan did not let the people below interfere, but let them all watch from the side.

Zhang Yuan took the paper curtain by himself, put it into the paper trough, attached the slurry to the paper curtain, and then slowly shook it to make the slurry on the paper curtain even.

Then the paper curtain is tilted forward to make the excess slurry and residual fibers flow out, and finally the paper curtain precipitates a layer of pulp mold, and finally the paper curtain is taken out of the paper tank and the pulp mold attached to it is buckled on the paper rack to dry.

After the complete action demonstration, Zhang Yuan began to let them get started one by one.

Then guide on the side, and if there are irregularities in the action, directly bring it up on the spot, and then let them improve.

In the end, everyone in the dozens of people present learned how to make pulp molds from paper curtains.

When it gets dark, the paper rack is already full of pulp molds, and the next thing is to wait quietly for these pulp molds to dry and form paper.

Because Zhang Yuan thought about making bamboo paper from the beginning instead of taking hemp and bark and coarse cloth to make hemp paper, he saved a lot of manpower.

After three days, the pulp molds on the paper rack have been dried to become bamboo paper.

Zhang Yuan went to Houyuan alone, took off a piece of bamboo paper, touched it and found that the back of the paper was plush, and the surface of the paper could also see the tendons, which was rough to the touch.

But after shaking a few times, it didn't crack, and Zhang Yuan smiled on his face.

Rough is fine, thick is fine, as long as it is tough and not fragile, and it can be written and easy to preserve, it has achieved the purpose of the previous hope.

"Zongxing."

Zhang Yuan shouted loudly, and Zong Xing immediately ran to the backyard after hearing it.

"The head of the house."

"Have people take all the paper off, cut it into a half-foot square, find a box, and seal it so that no one can touch it."

Zong Xing heard the seriousness of this matter from Zhang Yuan's words, and immediately agreed to find a trustworthy person to handle this matter.

Zhang Yuan himself took off ten sheets of paper that looked of the best quality, cut it by himself, polished all the raw edges, rolled them into a roll and put them in a wooden box, and then filled them with wool.

"Lao Zhao, prepare a horse, I'm going to Chang'an City.

Before I returned, the gate was closed, and no one was allowed to enter or leave. ”

Zhang Yuan had never faced a matter so seriously, because he knew that as long as the news was revealed, before Liu Che could speak, the hungry wolves hidden in the shadows would jump out one by one, hoping to bite off a piece of meat on Zhang Yuan's body.

In fact, the paper has appeared at this time, but it will be broken when you pinch it, and if you write vigorously on it, it will be broken, not to mention the revision of the book.

Cai Lun's ability to make paper is based on the countless failures of his predecessors, and he summarizes various methods to be successful.

As soon as Lao Zhao heard this, he immediately became serious, and said to Zhang Yuan.

"The head of the family, you can rest assured that you can go to Chang'an City, no matter who the villain is during this time, there will be no mercy until you return safely from Chang'an City."

At the critical moment, Lao Zhao is still very effective, and he will not drop the chain, which is the main reason why Zhang Yuan asked him to take care of the house.

After explaining, Zhang Yuan rode a wooden box on horseback and galloped towards Chang'an in the north.