Although Zhao Yunxiang knows how to be a stonemason, there is no chisel here, so he can't make his own stone grinding!

Stone grinding is very common in rural areas, and Zhao Yunxiang's father also collects a few and keeps them in his backyard.

In the pergola not far away, a slightly rough stone mill lies quietly there, which is a water mill, which is very suitable for making soy milk.

Of course, Zhao Yunxiang doesn't have beans, he just wants to make toilet paper.

Gather a few female savages, women basically do not participate in the construction of the tribe, but only do some light work.

Of course, there are a few elderly uncles, they can't do too tiring work, and simple grinding is still okay.

"It's called a stone mill, and it's used to crush grain and stuff like that, and I've now grown a kind of food that produces starch, and when the harvest is good, I can make grain powder. Zhao Yunxiang said, "Now, I'll teach you how to make wood flour first." ”

Well, it's wood flour, and that's what wood powder means.

"Boss, what is this wood powder for?" asked an old man.

"Wood flour can be used to make wood pulp, and after the wood pulp is processed and dried, it is paper, and the thickness of the paper depends on the amount of wood pulp. Zhao Yunxiang thought of the paper, and showed a happy expression, "With the paper, we can wipe our cheeks with confidence." ”

"Don't worry about the barbs on the leaves?"

"No more leaves!" Zhao Yunxiang nodded with certainty, and his confirmation made the savages present cheer.

"Long live the big guy!"

"The lord is amazing!"

"Big guy is awesome!"

They have a fan-like trust in Zhao Yunxiang, and he says that the savages are convinced.

In the open space of the tribe, many branches were dried, and most of these branches became very dry, and they were all carefully selected by Zhao Yunxiang, and they were all non-toxic.

Of course, even if it is poisonous, after Zhao Yunxiang's production, the toxicity will be neutralized.

After all, he is an assassin and can make poison!

Being proficient in making poison means knowing poison, and being able to detoxify it in turn.

"Chop these branches with an axe, and chop them into small pieces as much as possible, and then you will need to use them. Zhao Yunxiang said.

The older savages were armed with bronze axes, which also had many gaps, which might not have been the case if they had been replaced with iron, but there was not much iron ore now, and the smelting technology was not up to the level of smelting iron.

Therefore, we can only hope that the ore surveyors can find lead in a short time, and with the addition of lead, they will be successfully made into bronze objects, and then they can make bronze weapons in large quantities.

A large number of branches were chopped by the savages to make many small pieces of wood, and the female savages also joined in the making of small logs, which they broke with their hands and threw together into the baskets woven by vines.

"Good, let's do the crushing. Zhao Yunxiang pointed to the stone mill, "The structure of the stone mill is composed of two discs, and there is a bronze shaft in the center of the disc, which can drive the rotation of the upper disc. ”

"And the upper disc has a hole in which you can throw grain particles or wood chips, so that in the process of pushing the upper disc, the two stone mills rub against each other, and they will crush all these things. ”

Zhao Yunxiang explained while instructing the female savage to start the operation.

He taught the savages what he had mastered, and these people had very flexible brains and were quick to accept things.

"Wow...... "Qianqian."

The stone mill pushed, and began to rotate slowly, and one by one a savage poured the wood chips into the hole of the stone mill.

After the special friction extrusion of the stone mill, the dry wood chips gradually turn into wood powder.

The powder was packed in a huge clay jar, yes, it was the clay jar!

Industry has never stopped, and since learning how to fire pottery, savages have begun to experiment with firing huge clay jars.

At first, there were many failures, all of which were caused by cracks caused by the lack of purity of the raw materials, and under the guidance of Zhao Yunxiang, the savages completely broke the cracked pottery and mixed its powder into the clay.

The pottery jar fired by this operation is basically complete, and the success rate is as high as 80%

For a whole hour, the female savages took turns grinding and grinding a lot of wood powder, almost making a clay pot.

"It's okay, this weight has to be 30 pounds!" Zhao Yunxiang nodded with satisfaction, he was quite surprised by this efficiency.

You must know that the weight of sawdust is very light, what is the concept of a full 30 catties, and the toilet paper made from these can be used for a year, right?

"What are we going to do next?" the old man picked up the wood powder in his hand, most of these things were powder, and a little bit of wood stubble, but this did not affect the production of toilet paper.

"Ignite the fire and start firing!" Zhao Yunxiang had already prepared, he prepared a section of tree roots in advance, this kind of tree root contains a special chemical effect, that is, it can greatly promote wood pulp, and the effect is better under high temperature.

The sap from the roots of this tree is toxic, but after dehydration, the toxicity is lost with the water, and toilet paper is safe as long as it is dried.

Dozens of minutes later, a steaming can of wood pulp was made, and the color of the wood pulp was somewhat dark, grayish-yellow, which is the true color of the paper.

"These are the wood pulp, and now we need to scoop out a little bit of the wood pulp with a clay spoon and spread it evenly on this model. Zhao Yunxiang holds a wooden board with one hand, the thickness of the board is about 1 centimeter, the length is 2 meters, and the width is 20 centimeters.

There is a flat depression on one side of the plank, and the depth of the depression is 1 mm.

In order to prevent the wood pulp from showing signs of dehydration, Zhao Yunxiang deliberately brushed a layer of pine resin on the inside of the mold, which is very smooth, which will avoid the embarrassment of toilet paper sticking to the mold due to the evaporation of water from the wood pulp.

At the same time, because the water insulation performance of pine resin is extremely strong, the mold is almost 100% covered by pine resin, therefore, the water in the wood pulp cannot penetrate the wood board, which is more conducive to the rapid evaporation of wood pulp.

"Alright, now you guys do it. Zhao Yunxiang still guided from the side, so that the savages could fully learn this technique, so that the future toilet paper production would not be so troublesome.

Slowly pour the pulp into the mold with a spoon, this wood pulp water with a depth of 1 mm will evaporate quickly under the sun, and finally only the dehydrated wood pulp remains.

Because wood pulp cannot be dissolved in water, when the water is completely evaporated, you can get a piece of paper.

After a few minutes......

A slightly wet piece of paper was taken out of the mold by the wildling, and the paper was fully formed, with a somewhat rough texture, and did not break after folding.

"It's a success!" Zhao Yunxiang was overjoyed, "I've made toilet paper!"

The wild people were amazed to see the transparent toilet paper, through which the larger particles of wood powder could be clearly seen.

"So thin...... Will it be broken?" asked a wild man.

"Of course, one layer will be torn, but what about three layers?" Zhao Yunxiang folded and found that this was almost no different from most modern toilet paper.

After the toilet paper was made, Zhao Yunxiang was just about to lie in the hammock to rest, when he heard someone rushing over.

"Lord, something happened, something is wrong!!"

"Xiaoqiang, didn't I let him go out with the mineral surveyor?" Zhao Yunxiang frowned suspiciously, and then his face was extremely gloomy!