In this era, there was no concept of printing at all, and all books were copied by hand, but in this era, there were very few people who could read and write, and as long as they could read and write, they would have a good life. Therefore, there are very few people who make a living by copying books and selling them, so there are very few wooden books that can be used for sale, and the vast majority of people's books are borrowed and copied first, and they keep them after copying them, and they will never sell them.

Most of the wooden books sold as commodities in the market were collected by scribes, because they were circulated through various means, such as illegal raids, or family paths, and so on. But there are not many sources of such books, there are very few books that can be sold as commodities, and the price is naturally extremely high, a book costs at least 1,000 copper coins, a complete book is worth more than 10,000 copper coins, and some rare books will even be as high as a few catties of gold, and there is no market, even if you take the money, you may not be able to buy books. Therefore, as long as he is a businessman who runs a book business, he is a man who is extremely rich.

Although Li Yinghong has never done business, he also knows that he can make a fortune by selling books, so if he really says that a book can make hundreds of paper books, whether it is sold there, it is very sought-after, and of course it can be sold for a large price.

Gao Yuan smiled and said, "Go and invite Mrs. Wen Qing, it's useless for us to say well, it depends on what Mrs. Wen Qing says." ”

Li Yinghong immediately said: "You're right, I'll go to Sister Wenqing right away and see what she says." With that, he jumped out of the study.

After a while, Li Yinghong pulled Lin Wenqing to come, and the two were still outside the door, so they listened to Lin Wenqing say: "Is it really as good as you say?" You can make hundreds of copies of [Sun Tzu's Art of War] at once, and if it is true, it can sell hundreds of catties of gold. ”

Li Yinghong smiled: "Don't ask me, anyway, I can't say anything, let Gao Yuan explain it to you, in short, you just wait to make money." ”

With that, the two walked into the study, and Lin Wenqing saluted Gao Yuan and said, "See the lord." ”

Gao Yuan smiled: "Mrs. Wenqing, you don't have to be so polite in private, you can come and see this." As he spoke, he picked up a piece of paper from his desk and handed it to Lin Wenqing.

Lin Wenqing took the paper, flipped it over and looked at it, and his eyes also showed a look of surprise.

At this time, Li Yinghong said: "Sister Wenqing, you can write a few words." As he spoke, he handed Lin Wenqing a brush.

Lin Wenqing took the brush, wrote a few words on the paper, and his face became very happy, and said: "Great, it's really a good thing, it's really much easier to use than wooden and bamboo slips." He put down his pen and looked up at the plateau, and said, "My lord, if this kind of paper can really be made in large quantities, it will definitely be able to become a very good commodity, and this is unique to our Daijun, which is really great, I am worried that there is no commodity that can be sold in our Daijun?" After having such paper, there is. ”

Gao Yuan also simply explained the process of papermaking to Lin Wenqing.

After Lin Wenchun heard this, he couldn't help but show a glint of admiration, and said: "I can't imagine that the lord still knows these technologies, but although this kind of paper can be manufactured in large quantities, and the value of raw materials is not high, how much can we produce now, and what is the cost?" It is still necessary to figure out that it will be sold to other countries in the future, and it will be better to set a price. ”

Gao Yuan also nodded, and sure enough, he was worthy of being a businessman, so he asked the point, and said, "Mrs. Wenqing, I have asked the craftsmen to start mass production, and after a month, we can roughly calculate it." ”

Li Yinghong said: "Just leave the papermaking matter to Sister Wenqing, let her personally watch it, and you can know anything you want." ”

Lin Wenqing hurriedly said: "Then how can it be done, this is the papermaking technology that the lord came up with." ”

Gao Yuan smiled: "What's not to do, although the papermaking matter is now in charge of Uncle Zhong, he is not a businessman after all, and he has a lot of things, so it is impossible to take care of this bunch of things, so I always have to find someone to manage it, I think Mrs. Wenqing is very suitable." ”

Lin Wenqing saw that Gao Yuan said this, so it was not easy to refuse, and she was a businessman, so she naturally knew the commercial value of paper, and she did make some leaps and bounds, so she also said: "Okay, then I'll give it a try." ”

Gao Yuan said: "Now that the checkpoint of Yan has been opened, we can also send a caravan to Yan and Qi, or we can try the effect of paper, and wait for a month later, after the first batch of paper is manufactured, we can set off." ”

Lin Wenqing also nodded and said, "Okay, I'll prepare the caravan right away." After a pause, he asked again: "And what Yinghong said just now is that hundreds of [Sun Xiao's Art of War] can be made from this kind of paper, what is going on, is this true?" ”

Gao Yuan said: "Yes, there is nothing wrong at all. As he spoke, he explained the simple principles of printing to Lin Wenqing again.

The emergence of printing technology, in fact, predates papermaking, such as the ancient printing technology, can be regarded as the oldest printing technology, but this printing technology does not have much practical value. However, with the progress of papermaking, printing has also made great progress, and it has only begun to be practical.

Papermaking and printing have played a very important role in the development of Chinese culture, although China is listed as one of the four ancient civilizations, with a cultural history of 5,000 years, but before the Qin and Han dynasties, China's civilization development level has always lagged behind the three ancient civilizations, and China surpasses other ancient civilizations, leading the world, it is from the Qin and Han dynasties, and then has been leading the world for more than 2,000 years.

Many historians believe that the development of papermaking and printing is an important factor, and it is the development of papermaking and printing that has made the dissemination of cultural knowledge in ancient China more convenient and fast, so it has been promoting the development of ancient China, and even throwing the world farther and farther away. It was not until around the 10th century that papermaking technology spread to Europe, where sheepskin had been used as the main writing carrier, and there was no paper, so naturally there was no printing.

Printing is divided into two kinds of engraving printing and movable type printing, the former is beautifully printed, and the latter is convenient and simple, printing in ancient China is mainly engraving printing, although in the Northern Song Dynasty there was a living printing, but living printing has not been able to become the mainstream of Chinese printing, generally only used to print some low-cost books. On the contrary, in the thirteenth and fourteenth centuries, after the introduction of living printing to Europe, it quickly became popular, because the European script was alphabetized, which was more suitable for movable type printing than square Chinese characters. Moreover, at this time, the cultural development of Europe also entered a rapid period, and after three or four hundred years of catching up, it finally surpassed China.

Because the cost of engraving printing is obviously higher than that of movable type printing, Takahara intends to use movable type printing directly. The type mold of movable type printing is generally divided into three types: wood mold, clay mold and metal mold, but the most ideal material for movable type printing is copper mold and lead mold, and ink should be used for printing. But there are not many of these two minerals in China, and China uses ink, which is one of the reasons why movable type printing is not popular in China.

The advantage of using wood mold is that ink can be used, and the disadvantage is that it is precisely ink, because the use of ink is too much, the wood will expand and deform due to water absorption, which affects the printing effect, generally a wood engraving plate can only be printed 200 to 300 times, of course, if ink is used, the number of uses can be increased to about 500 times.

In fact, ink is not difficult to do, simply put, is to add oil to the ink, after cooking, the oil and ink are fully melted to increase the viscosity of the ink, so that it is not easy to produce ink seepage, which can improve the printing quality and also improve the number of times the word mold is used. Of course, not all oil can be added to the ink, what oil is suitable for the body, you can experiment slowly, and it will always come out, and before the ink is made, it is okay to use ink first.

Because for the plateau, even if there is no ink, it is enough, after all, it has already advanced China's papermaking and printing technology by hundreds of years, and there is nothing to be dissatisfied with.

After listening to Gao Yuan's explanation of the techniques and principles of printing, Lin Wenqing and Li Yinghong stared at Gao Yuan for a long time speechless as if they didn't know Gao Yuan. Although none of them had ever seen printing, when they heard Gao Yuan say this, both of them understood that according to Gao Yuan, no matter what kind of book it is, it is indeed possible to make hundreds of paper books very lightly, after all, both of them understand the truth of seals.

With the unique sensitivity of a businessman, Lin Wenchun immediately thought of what a huge business opportunity there was in printing, which was far greater than that of papermaking alone. So when she looked at the few pieces of paper on the plateau table, it was as if she had seen gold leaf.

It was Li Yinghong who reacted first and said, "How do you know so many things, is it because you had these things in the place before." ”

Gao Yuan smiled bitterly and said, "Even if it's it." ”

Li Yinghong couldn't help but laugh and said, "Even if it's called." ”

Gao Yuan didn't know how to explain to Li Yinghong for a while, and after thinking for a while, he said: "Let's put it this way, these techniques were used in my past world, but now they are no longer used, because we have good methods, but these good methods cannot be used at this time, so I have to use these old technologies, I can only explain it like this." ”

Li Yinghong was dizzy when she heard it, and said: "Forget it, you better don't explain, the more you explain, the more messy my head will be, anyway, I don't want to know." ”

At this time, Lin Wenqing remembered that the plateau was still a star. It's just that Gao Yuan usually gets along with everyone very well, and he doesn't have the frame of the star coming to the world at all, so many people unconsciously ignore that there is such a layer of godhead on Gao Yuan's body. Lin Wenqing felt at this time that he had never discovered it before, and it turned out that there were indeed some very strange places on the plateau.