Maybe it was because the movement was too big, and the news that Du He was tinkering with papermaking reached Du Ruhui's ears, and he talked about it at the dinner table that day.

"Erlang, I heard that you've been running to the workshop lately, what are you tinkering with?" Du Ruhui was well-fed, sat on the seat, picked his teeth with the thorns on the hedgehog's body, and glanced at Du He.

This old man spoke, how dare Du He hide it, tell the story in such detail, and then tell Du Ruhui how great the prospect of this papermaking is, how much it benefits the country and the people.

Du Ruhui's mouth "chirped" for a while, and after Du He's mouth was dry, he asked, "Is it done?" ”

"Uh......" is really worthy of being a palace-level character, not so easy to fool, he lowered his head in frustration, but said in a hurry: "Not for the time being, but today's failure is tomorrow's success." A little problem, not worth mentioning! Du He is cheering himself up, and he has no bottom in his heart, because this invention is mysterious and mysterious, just this little bit of fault, may be able to stump others for a lifetime, make people addicted to it for a lifetime, unable to extricate themselves, unable to find a key, sometimes unintentionally moved, but it has become the key to solving the problem.

Peng Yiliang is precisely at this critical point, and no matter what efforts he makes, it will not be fruitful. It seems to have entered some kind of misunderstanding and needed real inspiration. But it was clear that his inspiration was delayed.

It is very likely that he will figure out the key to this in the future, and it is also possible that he will stay at this progress for the rest of his life and will not be able to break through this level.

Who could have predicted this future!

All Du He could do was to cooperate as much as possible, give him full support, and use the little inventory in his brain to help him.

"It's kind of interesting!" Du Ruhui nodded in surprise, "Gai Ming'er, I'll also go and take a look, see what you have spent so much manpower and material resources." ”

Du He was a little dumbfounded, although Peng Yiliang worked hard, the paper he made was still like that, with different colors, and some of them were difficult to see, so that Du Ruhui didn't know if he would say that he was a loser.

However, the things set by the old man can't be changed if he wants to, so he can only hope that Peng Yiliang can suddenly open his mind and figure out the key.

Maybe God heard his prayers, and the next morning, Du He was still eating, and Peng Yiliang sent someone to find him, and it seemed that there was a new progress.

Du He heard the news, and he didn't care about eating, so he hurriedly slipped two bites and rushed to the paper-making workshop.

Because the sewage discharged from the paper workshop is too harmful to the environment, it is located in the extremely remote and uninhabited downstream mountainous area, and it is no coincidence that there is a wide land with mountains and rivers and inaccessible people near Chang'an, and many workshops in Chang'an are gathered here, forming a small industrial area.

Duho galloped to an industrial area in the middle of nowhere. All the workshops are producing in the sky, and when he entered the papermaking workshop, he saw Peng Yiliang's eyes were red, his hair was unkempt, and he was anxiously walking around the courtyard.

"What's new!" Duho walked up.

Peng Yiliang's face was flushed, and he shouted excitedly: "It's done, it's done, Childe, I found the reason why the color is different." That's because the grass and trees lack stickiness, and when bleaching, it is successful, but when it is pulped, problems will appear, so the paper made is not only ugly in color, but also in different colors. As long as you add sticky surnames, all problems will be solved. He laughed, and it just so happened that their workshop was next door to a sugar factory, which specialized in sugar cane. The host is very good at being a person, and every time the sugar production is successful, there will be some miscellaneous sugar that cannot be sold. After the host family distributes the sugar to the employees, the rest is given to the workers in the neighborhood. They received one last night, looking at the miscellaneous sugar, Peng Yiliang had an idea, came up with the key to the problem, bought some syrup from next door and came back, mixed it into it, and increased the stickiness.

After listening to Peng Yiliang, Du He frowned and did not speak for the time being.

Now all the processes are completed, just waiting for the wet paper to dry.

Seeing that the hour was about the same, Peng Yiliang entered the workshop, and there was an exclamation in the workshop, and then Du He saw him happily holding a stack of white paper and striding out.

"It's done, it's done!" Peng Yiliang's excited red face was full of excitement, and his excitement was beyond words.

Du He took the paper, sure enough, one by one, flawless, white as jade, touched the smooth surface of the paper, pulled it, okay, fold it, there is no problem, slightly inferior to rice paper, but compared to hard yellow paper, bamboo paper is a lot better.

That's when it happened!

"What has it become?" Du Ruhui's voice came, and his figure also appeared at the door!

"Daddy!"

Du He was a little puzzled, although Du Ruhui said that he came today, he didn't expect to come so early, so he greeted him first.

Peng Yiliang saw that the person who came was actually the prime minister of the court, so he hurriedly stepped forward and saluted, and called out respectfully: "Master! ”

Du Ruhui knew Du He's thoughts, and said with a smile: "Today, there is nothing to do in the court. Turning to the workshop for a walk, it was done before, but it is said that papermaking is ...... Huh......" He had already seen the white paper in Peng Yiliang's hand, let out a sound of surprise, reached out to take it, tested the surname of the paper, his eyes suddenly widened, his face was incredulous, his face was like a cramp, and he trembled.

"This ...... This paper is comparable to rice paper, is it really made of bamboo, grass and trees? Even Du Ruhui was also moved at this moment, and he stammered a little when he spoke.

Peng Yiliang laughed: "Back to the master, that's exactly the case!" ”

Seeing that Peng Yiliang was happy and sad, Du He shook his head and said: "Don't be happy too early, it's not enough, it's far from enough." ”

Du Ruhui and Peng Yiliang were stunned.

Du He said: "Don't forget our original intention, this paper is not made for profit, but for the benefit of the people of the world, so that everyone in the world can use paper and read books." However, you add syrup to the process. The syrup is made from sugar cane and is not usually priced. This also greatly increases the cost of papermaking, which is not in line with our original concept. ”

Peng Yiliang smiled at all, lowered his head and groaned.

Du Ruhui said: "Erlang, your idea is good, but it's not too harsh. Although syrup is added, the cost of this kind of paper is far less than that of hard yellow paper, and it will definitely be popular in Datang. ”

"Daddy also said that it will replace hard yellow paper, so what's the use? Hard yellow paper is only popular among the upper nobles of the Tang Dynasty, and the common people can't afford it. The child doesn't think it's difficult, it's just that this is the goal in the beginning, and now the paper is successful, but the goal is still far away. Of course, Du He is also happy that Peng Yiliang has overcome difficulties, but this unsatisfactory place cannot be ignored.

"Therefore, we must find something that can replace the syrup, otherwise, even if it is sold at cost price, it will be difficult to spread in the world." Du He knows that the promotion of paper is a major event that is beneficial to the people of the world, and is the most important key to promoting the progress of cultural communication and science and technology.

Peng Yiliang said: "What the young master said is right, this is not a success, let me think again!" Immediately, he sat down on the ground and pondered.

Du He and Du Ruyan saw that Peng Yiliang had entered a state of self, and they did not bother, and immediately planned to leave.

When they left the workshop, they saw three people pushing a cart loaded with a large pile of white debris and walking in front of them.

Looking at the white debris, a thought flashed through his mind, a little vague, I don't know what it is, but I feel very important in my heart, seeing them go away, Du He hurriedly shouted: "A few friends, what are you transporting?" ”

When the three of them heard the call, they knew that Du He was not rich or expensive when they saw Du He's clothes, and they hurriedly said: "Back to Gongzi, it's bagasse!" ”

Duhe was shocked, his expression was clear, and he remembered that it was bagasse and papermaking! In his impression, there was such a link in the papermaking process in later generations: sugarcane was planted to extract sugar, and sugarcane was used to make paper. Although bagasse has been squeezed to extract sugar, there is still some remaining that cannot be squeezed out, and bagasse is used as one of the raw materials for papermaking, and the remaining sugar in it can naturally make up for the lack of stickiness.

Immediately ecstatic: "Can you sell me this bagasse, I bought it!" ”

The three of them laughed and looked at each other, and one of them said: "This was originally planned to be transported to a remote place and burned, since the son wants it, take it, and save us trouble." ”

Du Ruhui was surprised: "This grass can make paper, but this bagasse can't be made?" ”

Du He had already affirmed it, but he couldn't make sense, so he said: "If you don't try, how will you know." He told Peng Yiliang his idea.

Peng Yiliang knew that Du He had a lot of ideas, and some of the novel things he said in the past were incredible, but in the end they all succeeded, and they benefited a lot, and at this moment he planned to use bagasse as a raw material, there must be a reason for him.

So, without refusing, he poured the bagasse into the pulp pond with hope and let it ferment to make pulp water.

This pulping process takes half a month.

Half a month later, Duhol came to the paper workshop early.

Artisans are stirring rotten bamboo, rotten bagasse, and stinking pulp water, and the pungent air between the crops is unbearable. One by one, they were naked, wrapped their faces in towels, and only their eyes were exposed, stirring beside the boiling stinky pulp, which made people feel sad to see, and they couldn't imagine that the paper-making process was so arduous. How many readers know that the paper they use every day is made in such harsh conditions?

Peng Yiliang commanded the craftsmen to do this and that, step by step from dehydration, and then through compression, paper, copying, drying and other complicated steps.

Du He waited anxiously, according to the principle, there should be no problem, but as long as it is not done, everything is possible.

Finally in the afternoon, the paper was completed!

At the moment when the paper was made, "Oh! "Ahh A few strange screams came from the workshop, terrible and terrifying, as if they had seen a ghost.

"It's done!" Peng Yiliang howled, tears poured down, half a lifetime of paper-making efforts, and now he finally paid off, sent the white paper to Du He, and shouted: "Childe, your method is much better than my method of using syrup." This paper is almost made out of nothing! ”

(To be continued)