In late November of 258 AD, after friendly and sincere negotiations between the two sides, Ma Guo signed a package agreement on behalf of the Fuxing Society and the Bu Association on behalf of the Xiling Bu family.

The two sides agreed that the Fuxing Society and the Bujia would form an alliance. Fuxing Society provides tung oil production and purification methods to Bujia's shops, and separately provides two products: toothbrushes and toothpaste. The obligation of the Bu family is: as long as the Bu family still controls Xiling, it is necessary to ensure the safety and unimpeded flow of the Mi family's caravan.

Among the several fist commodities of the Fuxing Society, the production of tung oil is the least difficult, and it is only a matter of time before the mystery is discovered. So Guan Yi simply threw it out as a favor. Moreover, taking advantage of this great victory of the Han Dynasty, Mengzihei on the southern border of Fuling County was severely damaged, and Guan Yi extended the Line of Actual Control of his side to Wuling County in Eastern Wu for at least 30 miles, which has completely encompassed Xiushan County, Chongqing City, the largest tung tree planting base in China in later generations. Therefore, even if the production technology of tung oil is completely disclosed, Fuxing Society has an absolute advantage in terms of raw materials.

Compared with tung oil, Bu Xie, who is also good at business, suddenly lit up when he saw a toothbrush - this is a bulk of goods that everyone needs. And he's still a consumable - he'll have to get a new one in a few months!

In the toothbrush of this era, Guan Yi could only perforate one end of the wooden strip and then insert a more delicate bristle. In general, it's just a matter of thinking. But how could a dignified traveler make such a trickle of business so easy for others to fake? The bristles of the toothbrushes he sells are all bleached.

In this day and age, to make bleach, it is quite a troublesome and dangerous thing. But there is no way, on the one hand, we have to come up with new products to make more profits in order to feed more people. On the other hand, in order to ensure that their trade routes remain smooth, they must have enough interests to firmly bind the Bujia.

To make bleach in this era, you first need to have manganese oxide and hydrochloric acid. Hydrochloric acid has been mentioned above and can be obtained by dissolving it in water from the brine mass. Manganese oxide is a natural ore - it is also found in the land of Fuling County.

Hydrochloric acid and manganese oxide react to produce chlorine gas, which is the most dangerous and troublesome - this is a toxic gas. Therefore, Guan Yi's choice is not to let the chlorine gas be released alone, but directly from the sheep intestine to the clean water on the other side - chlorine gas and water will form hypochlorous acid. This is the active ingredient in bleach.

This is a very complex and dangerous process, and the production of bleach alone is much more expensive than the toothbrush itself. But it's well worth it: a white toothbrush and a black toothbrush that looks like bristles, what will people choose?

So even if the factory price of the toothbrush here is 200 yuan each. The business-savvy Bu Association even set the sales price to a frenzied 500 yuan each, but both sides are sure - this thing will definitely be a big sale - you insist on not using a toothbrush for a month, only your fingers clean your teeth, you can understand what the ancients would feel like when they encountered a toothbrush.

The use of tooth powder began very early, and ores and traditional Chinese medicine tooth powders were widely used in ancient China. On the one hand, this thing is easy to imitate, which damages the prestige of the traverser. On the other hand, the taste of tooth powder is really bad, which affects sales. So what Guan Yi sold to the Bu family was toothpaste.

Toothpaste in modern society is mainly divided into several parts.

The first is the friction agent, which Guan Yi directly uses light calcium carbonate - this is a by-product of the preparation of sodium hydroxide solution, which is not used in vain.

The second is a humectant, which can effectively prevent the toothpaste from drying out and hardening. Guan Yi chose glycerin – it's all readily available.

The third is the adhesive, which is simpler. Because his active ingredient is carboxymethyl cellulose sodium salt, although it sounds lofty, it is actually widely found in all plants in nature. Although limited to the existing technology, Guan Yi can only do one process: alkalization, and the remaining etherification cannot be done because the production of chloroacetic acid is too troublesome, but the adhesive produced by this way has far surpassed this era.

Fourth, spices. As modern people know, its main ingredient is mint leaves. This thing is also everywhere in Fuling County.

Fifth, sweeteners. All you need to do is add a little more glycerin.

With a toothbrush, plus a toothpaste package. It is foreseeable that in the near future, any willow branches and various tooth powders with unknown ingredients will be squeezed out of the market. Because of this, in the face of such huge interests, all the unhappiness caused by the Bu family's initial loss was thrown out of the clouds. The two brothers of the Bujia family were very happy to sign an agreement with Ma Guo on alliance and friendly cooperation.

In November of this year, Sun Xiu, the newly succeeded Emperor Wu, worshiped the general Sun Qi as the prime minister and Jingzhou pastor, and at the same time made all four of Sun Qi's brothers marquises. After successfully paralyzing Sun Qi, Sun Xiu contacted the veteran general Ding Feng through the left general Zhang Bu, and arrested and killed Sun Qi at the Great Dynasty Meeting on December 8 when the Lap Festival was held. After that, Sun Qi's family was wiped out by the three clans. Since Sun Liang, the imperial power that had been lost for six years by the side of Eastern Wu finally returned to the hands of the Sun Wu royal family.

After receiving the news from Jianye, the Bujia brothers, who had finally landed with a stone in their hearts, couldn't afford to take revenge on the Fuxing Society and the Mijia firm at this time. Because just this past November, all the 10,000 toothbrushes and toothpaste delivered by the Fuxing Society have been sold out in Jingzhou. In this month alone, the Bujia family has made a profit of six million dollars!

In the face of sufficient interests, no matter how great the hatred is, it is possible to laugh at the enmity and hatred.

The Bujia side is happily counting the money, and the Fuling County side is also full of laughter.

"Guan Zifeng, you said you didn't do too much? Toothpaste and toothbrushes are such a good thing, but they are not handed over to my Mijia business to sell, but let them be sold exclusively by Bujia? ”

"Hehehe, brother. When the foolish brother heard this, he listened to it. Who made our Han only have Yizhou now. ”

Regarding Guan Yi's behavior of handing over the monopoly of toothpaste and toothbrushes to the Bu family, Mi Zhao was actually not dissatisfied at all. Far from being dissatisfied, he expressed great appreciation for Guan Yi. Because everyone knows that the territory of Shuhan is too small, the population is too small, and the domestic transportation is very inconvenient - the potential of this market is very limited. To sell the product to more people, we can only rely on the Yangtze River waterway. And the throat of the Yangtze River waterway is now stuck in the hands of the governor of Xiling.

This is also quite helpless for Guan Yi: Shu Han is too weak, and he, a traverser, has to think about it before he comes up with a new product. After all, for weak countries, a general increase in the level of science and technology means that the gap between them and the strong will become wider and wider.

For example, in the first year of Jingyao, Fuxing Society actually had a new product: calcium carbonate tablets that could be taken orally. This thing would have been a very good commodity in such an era when the calcification strength of human bones was much lower than that of modern people - the cost was very low, but it could be sold super expensive, and it could make a huge profit. But Guan Yi only dared to let the students of his revival school take it. Why? Because the population of Shu Han is small, the source of soldiers is small. If this thing is spread out and sold, and the population and physique of the three countries have been improved, then do you say that this is a curse or a blessing for Shu Han?

Another example is the epoch-making super weapon of potatoes, and Guan Yi only dares to plant them on a few hills at present. And because the production technology of this thing is too low, once the seeds are outflowed, others can replicate it. So he had to put a lot of effort into preventing the seeds from flowing out - he only dared to beat the harvested potatoes into flour and market them under the name of bean flour. This is because once the potatoes are outflowed, then the Wei and Wu states, which have more population and land, will receive much more benefits than the Shu Han, which is small and weak! At this stage, the only result of spreading potato planting is that Shu Han will die faster!

Another example is cement, Fuling County is full of limestone, and firing cement is not too simple for traversers. But Guan Yi, does he dare to spread the cement and sell it? The Shu Han army, which was always weak in the number of ready-made people, was helpless in the face of the slightly larger Cao Wei's rammed earth city walls, and if Cao Wei's city walls were turned into cement, Jiang Wei would not let him go first.

There are also revolutionary cavalry equipment such as stirrups and horseshoes, and Guan Yi is even more afraid to bring them up: the cavalry of Cao Wei, who is now an adult, has formed a great pressure on the infantry of Shu Han. Once the stirrups came out, the combat effectiveness of Cao Wei's cavalry would increase by more than ten times - at that time, the 10,000 cavalry of the Shuhan District would have improved their combat effectiveness.

Therefore, the traverser is in a weak country, and many times it is really not the more inventions and creations, the better.